2 * Driver for Marvell PPv2 network controller for Armada 375 SoC.
4 * Copyright (C) 2014 Marvell
6 * Marcin Wojtas <mw@semihalf.com>
9 * Copyright (C) 2016-2017 Stefan Roese <sr@denx.de>
11 * This file is licensed under the terms of the GNU General Public
12 * License version 2. This program is licensed "as is" without any
13 * warranty of any kind, whether express or implied.
18 #include <dm/device-internal.h>
25 #include <linux/errno.h>
29 #include <asm/arch/cpu.h>
30 #include <asm/arch/soc.h>
31 #include <linux/compat.h>
32 #include <linux/mbus.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 /* Some linux -> U-Boot compatibility stuff */
37 #define netdev_err(dev, fmt, args...) \
39 #define netdev_warn(dev, fmt, args...) \
41 #define netdev_info(dev, fmt, args...) \
43 #define netdev_dbg(dev, fmt, args...) \
46 #define ETH_ALEN 6 /* Octets in one ethernet addr */
48 #define __verify_pcpu_ptr(ptr) \
50 const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
54 #define VERIFY_PERCPU_PTR(__p) \
56 __verify_pcpu_ptr(__p); \
57 (typeof(*(__p)) __kernel __force *)(__p); \
60 #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); })
61 #define smp_processor_id() 0
62 #define num_present_cpus() 1
63 #define for_each_present_cpu(cpu) \
64 for ((cpu) = 0; (cpu) < 1; (cpu)++)
66 #define NET_SKB_PAD max(32, MVPP2_CPU_D_CACHE_LINE_SIZE)
68 #define CONFIG_NR_CPUS 1
69 #define ETH_HLEN ETHER_HDR_SIZE /* Total octets in header */
71 /* 2(HW hdr) 14(MAC hdr) 4(CRC) 32(extra for cache prefetch) */
72 #define WRAP (2 + ETH_HLEN + 4 + 32)
74 #define RX_BUFFER_SIZE (ALIGN(MTU + WRAP, ARCH_DMA_MINALIGN))
76 #define MVPP2_SMI_TIMEOUT 10000
78 /* RX Fifo Registers */
79 #define MVPP2_RX_DATA_FIFO_SIZE_REG(port) (0x00 + 4 * (port))
80 #define MVPP2_RX_ATTR_FIFO_SIZE_REG(port) (0x20 + 4 * (port))
81 #define MVPP2_RX_MIN_PKT_SIZE_REG 0x60
82 #define MVPP2_RX_FIFO_INIT_REG 0x64
84 /* RX DMA Top Registers */
85 #define MVPP2_RX_CTRL_REG(port) (0x140 + 4 * (port))
86 #define MVPP2_RX_LOW_LATENCY_PKT_SIZE(s) (((s) & 0xfff) << 16)
87 #define MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK BIT(31)
88 #define MVPP2_POOL_BUF_SIZE_REG(pool) (0x180 + 4 * (pool))
89 #define MVPP2_POOL_BUF_SIZE_OFFSET 5
90 #define MVPP2_RXQ_CONFIG_REG(rxq) (0x800 + 4 * (rxq))
91 #define MVPP2_SNOOP_PKT_SIZE_MASK 0x1ff
92 #define MVPP2_SNOOP_BUF_HDR_MASK BIT(9)
93 #define MVPP2_RXQ_POOL_SHORT_OFFS 20
94 #define MVPP21_RXQ_POOL_SHORT_MASK 0x700000
95 #define MVPP22_RXQ_POOL_SHORT_MASK 0xf00000
96 #define MVPP2_RXQ_POOL_LONG_OFFS 24
97 #define MVPP21_RXQ_POOL_LONG_MASK 0x7000000
98 #define MVPP22_RXQ_POOL_LONG_MASK 0xf000000
99 #define MVPP2_RXQ_PACKET_OFFSET_OFFS 28
100 #define MVPP2_RXQ_PACKET_OFFSET_MASK 0x70000000
101 #define MVPP2_RXQ_DISABLE_MASK BIT(31)
103 /* Parser Registers */
104 #define MVPP2_PRS_INIT_LOOKUP_REG 0x1000
105 #define MVPP2_PRS_PORT_LU_MAX 0xf
106 #define MVPP2_PRS_PORT_LU_MASK(port) (0xff << ((port) * 4))
107 #define MVPP2_PRS_PORT_LU_VAL(port, val) ((val) << ((port) * 4))
108 #define MVPP2_PRS_INIT_OFFS_REG(port) (0x1004 + ((port) & 4))
109 #define MVPP2_PRS_INIT_OFF_MASK(port) (0x3f << (((port) % 4) * 8))
110 #define MVPP2_PRS_INIT_OFF_VAL(port, val) ((val) << (((port) % 4) * 8))
111 #define MVPP2_PRS_MAX_LOOP_REG(port) (0x100c + ((port) & 4))
112 #define MVPP2_PRS_MAX_LOOP_MASK(port) (0xff << (((port) % 4) * 8))
113 #define MVPP2_PRS_MAX_LOOP_VAL(port, val) ((val) << (((port) % 4) * 8))
114 #define MVPP2_PRS_TCAM_IDX_REG 0x1100
115 #define MVPP2_PRS_TCAM_DATA_REG(idx) (0x1104 + (idx) * 4)
116 #define MVPP2_PRS_TCAM_INV_MASK BIT(31)
117 #define MVPP2_PRS_SRAM_IDX_REG 0x1200
118 #define MVPP2_PRS_SRAM_DATA_REG(idx) (0x1204 + (idx) * 4)
119 #define MVPP2_PRS_TCAM_CTRL_REG 0x1230
120 #define MVPP2_PRS_TCAM_EN_MASK BIT(0)
122 /* Classifier Registers */
123 #define MVPP2_CLS_MODE_REG 0x1800
124 #define MVPP2_CLS_MODE_ACTIVE_MASK BIT(0)
125 #define MVPP2_CLS_PORT_WAY_REG 0x1810
126 #define MVPP2_CLS_PORT_WAY_MASK(port) (1 << (port))
127 #define MVPP2_CLS_LKP_INDEX_REG 0x1814
128 #define MVPP2_CLS_LKP_INDEX_WAY_OFFS 6
129 #define MVPP2_CLS_LKP_TBL_REG 0x1818
130 #define MVPP2_CLS_LKP_TBL_RXQ_MASK 0xff
131 #define MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK BIT(25)
132 #define MVPP2_CLS_FLOW_INDEX_REG 0x1820
133 #define MVPP2_CLS_FLOW_TBL0_REG 0x1824
134 #define MVPP2_CLS_FLOW_TBL1_REG 0x1828
135 #define MVPP2_CLS_FLOW_TBL2_REG 0x182c
136 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port) (0x1980 + ((port) * 4))
137 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS 3
138 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK 0x7
139 #define MVPP2_CLS_SWFWD_P2HQ_REG(port) (0x19b0 + ((port) * 4))
140 #define MVPP2_CLS_SWFWD_PCTRL_REG 0x19d0
141 #define MVPP2_CLS_SWFWD_PCTRL_MASK(port) (1 << (port))
143 /* Descriptor Manager Top Registers */
144 #define MVPP2_RXQ_NUM_REG 0x2040
145 #define MVPP2_RXQ_DESC_ADDR_REG 0x2044
146 #define MVPP22_DESC_ADDR_OFFS 8
147 #define MVPP2_RXQ_DESC_SIZE_REG 0x2048
148 #define MVPP2_RXQ_DESC_SIZE_MASK 0x3ff0
149 #define MVPP2_RXQ_STATUS_UPDATE_REG(rxq) (0x3000 + 4 * (rxq))
150 #define MVPP2_RXQ_NUM_PROCESSED_OFFSET 0
151 #define MVPP2_RXQ_NUM_NEW_OFFSET 16
152 #define MVPP2_RXQ_STATUS_REG(rxq) (0x3400 + 4 * (rxq))
153 #define MVPP2_RXQ_OCCUPIED_MASK 0x3fff
154 #define MVPP2_RXQ_NON_OCCUPIED_OFFSET 16
155 #define MVPP2_RXQ_NON_OCCUPIED_MASK 0x3fff0000
156 #define MVPP2_RXQ_THRESH_REG 0x204c
157 #define MVPP2_OCCUPIED_THRESH_OFFSET 0
158 #define MVPP2_OCCUPIED_THRESH_MASK 0x3fff
159 #define MVPP2_RXQ_INDEX_REG 0x2050
160 #define MVPP2_TXQ_NUM_REG 0x2080
161 #define MVPP2_TXQ_DESC_ADDR_REG 0x2084
162 #define MVPP2_TXQ_DESC_SIZE_REG 0x2088
163 #define MVPP2_TXQ_DESC_SIZE_MASK 0x3ff0
164 #define MVPP2_AGGR_TXQ_UPDATE_REG 0x2090
165 #define MVPP2_TXQ_THRESH_REG 0x2094
166 #define MVPP2_TRANSMITTED_THRESH_OFFSET 16
167 #define MVPP2_TRANSMITTED_THRESH_MASK 0x3fff0000
168 #define MVPP2_TXQ_INDEX_REG 0x2098
169 #define MVPP2_TXQ_PREF_BUF_REG 0x209c
170 #define MVPP2_PREF_BUF_PTR(desc) ((desc) & 0xfff)
171 #define MVPP2_PREF_BUF_SIZE_4 (BIT(12) | BIT(13))
172 #define MVPP2_PREF_BUF_SIZE_16 (BIT(12) | BIT(14))
173 #define MVPP2_PREF_BUF_THRESH(val) ((val) << 17)
174 #define MVPP2_TXQ_DRAIN_EN_MASK BIT(31)
175 #define MVPP2_TXQ_PENDING_REG 0x20a0
176 #define MVPP2_TXQ_PENDING_MASK 0x3fff
177 #define MVPP2_TXQ_INT_STATUS_REG 0x20a4
178 #define MVPP2_TXQ_SENT_REG(txq) (0x3c00 + 4 * (txq))
179 #define MVPP2_TRANSMITTED_COUNT_OFFSET 16
180 #define MVPP2_TRANSMITTED_COUNT_MASK 0x3fff0000
181 #define MVPP2_TXQ_RSVD_REQ_REG 0x20b0
182 #define MVPP2_TXQ_RSVD_REQ_Q_OFFSET 16
183 #define MVPP2_TXQ_RSVD_RSLT_REG 0x20b4
184 #define MVPP2_TXQ_RSVD_RSLT_MASK 0x3fff
185 #define MVPP2_TXQ_RSVD_CLR_REG 0x20b8
186 #define MVPP2_TXQ_RSVD_CLR_OFFSET 16
187 #define MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu) (0x2100 + 4 * (cpu))
188 #define MVPP22_AGGR_TXQ_DESC_ADDR_OFFS 8
189 #define MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu) (0x2140 + 4 * (cpu))
190 #define MVPP2_AGGR_TXQ_DESC_SIZE_MASK 0x3ff0
191 #define MVPP2_AGGR_TXQ_STATUS_REG(cpu) (0x2180 + 4 * (cpu))
192 #define MVPP2_AGGR_TXQ_PENDING_MASK 0x3fff
193 #define MVPP2_AGGR_TXQ_INDEX_REG(cpu) (0x21c0 + 4 * (cpu))
195 /* MBUS bridge registers */
196 #define MVPP2_WIN_BASE(w) (0x4000 + ((w) << 2))
197 #define MVPP2_WIN_SIZE(w) (0x4020 + ((w) << 2))
198 #define MVPP2_WIN_REMAP(w) (0x4040 + ((w) << 2))
199 #define MVPP2_BASE_ADDR_ENABLE 0x4060
201 /* AXI Bridge Registers */
202 #define MVPP22_AXI_BM_WR_ATTR_REG 0x4100
203 #define MVPP22_AXI_BM_RD_ATTR_REG 0x4104
204 #define MVPP22_AXI_AGGRQ_DESCR_RD_ATTR_REG 0x4110
205 #define MVPP22_AXI_TXQ_DESCR_WR_ATTR_REG 0x4114
206 #define MVPP22_AXI_TXQ_DESCR_RD_ATTR_REG 0x4118
207 #define MVPP22_AXI_RXQ_DESCR_WR_ATTR_REG 0x411c
208 #define MVPP22_AXI_RX_DATA_WR_ATTR_REG 0x4120
209 #define MVPP22_AXI_TX_DATA_RD_ATTR_REG 0x4130
210 #define MVPP22_AXI_RD_NORMAL_CODE_REG 0x4150
211 #define MVPP22_AXI_RD_SNOOP_CODE_REG 0x4154
212 #define MVPP22_AXI_WR_NORMAL_CODE_REG 0x4160
213 #define MVPP22_AXI_WR_SNOOP_CODE_REG 0x4164
215 /* Values for AXI Bridge registers */
216 #define MVPP22_AXI_ATTR_CACHE_OFFS 0
217 #define MVPP22_AXI_ATTR_DOMAIN_OFFS 12
219 #define MVPP22_AXI_CODE_CACHE_OFFS 0
220 #define MVPP22_AXI_CODE_DOMAIN_OFFS 4
222 #define MVPP22_AXI_CODE_CACHE_NON_CACHE 0x3
223 #define MVPP22_AXI_CODE_CACHE_WR_CACHE 0x7
224 #define MVPP22_AXI_CODE_CACHE_RD_CACHE 0xb
226 #define MVPP22_AXI_CODE_DOMAIN_OUTER_DOM 2
227 #define MVPP22_AXI_CODE_DOMAIN_SYSTEM 3
229 /* Interrupt Cause and Mask registers */
230 #define MVPP2_ISR_RX_THRESHOLD_REG(rxq) (0x5200 + 4 * (rxq))
231 #define MVPP21_ISR_RXQ_GROUP_REG(rxq) (0x5400 + 4 * (rxq))
233 #define MVPP22_ISR_RXQ_GROUP_INDEX_REG 0x5400
234 #define MVPP22_ISR_RXQ_GROUP_INDEX_SUBGROUP_MASK 0xf
235 #define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_MASK 0x380
236 #define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_OFFSET 7
238 #define MVPP22_ISR_RXQ_GROUP_INDEX_SUBGROUP_MASK 0xf
239 #define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_MASK 0x380
241 #define MVPP22_ISR_RXQ_SUB_GROUP_CONFIG_REG 0x5404
242 #define MVPP22_ISR_RXQ_SUB_GROUP_STARTQ_MASK 0x1f
243 #define MVPP22_ISR_RXQ_SUB_GROUP_SIZE_MASK 0xf00
244 #define MVPP22_ISR_RXQ_SUB_GROUP_SIZE_OFFSET 8
246 #define MVPP2_ISR_ENABLE_REG(port) (0x5420 + 4 * (port))
247 #define MVPP2_ISR_ENABLE_INTERRUPT(mask) ((mask) & 0xffff)
248 #define MVPP2_ISR_DISABLE_INTERRUPT(mask) (((mask) << 16) & 0xffff0000)
249 #define MVPP2_ISR_RX_TX_CAUSE_REG(port) (0x5480 + 4 * (port))
250 #define MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
251 #define MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK 0xff0000
252 #define MVPP2_CAUSE_RX_FIFO_OVERRUN_MASK BIT(24)
253 #define MVPP2_CAUSE_FCS_ERR_MASK BIT(25)
254 #define MVPP2_CAUSE_TX_FIFO_UNDERRUN_MASK BIT(26)
255 #define MVPP2_CAUSE_TX_EXCEPTION_SUM_MASK BIT(29)
256 #define MVPP2_CAUSE_RX_EXCEPTION_SUM_MASK BIT(30)
257 #define MVPP2_CAUSE_MISC_SUM_MASK BIT(31)
258 #define MVPP2_ISR_RX_TX_MASK_REG(port) (0x54a0 + 4 * (port))
259 #define MVPP2_ISR_PON_RX_TX_MASK_REG 0x54bc
260 #define MVPP2_PON_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
261 #define MVPP2_PON_CAUSE_TXP_OCCUP_DESC_ALL_MASK 0x3fc00000
262 #define MVPP2_PON_CAUSE_MISC_SUM_MASK BIT(31)
263 #define MVPP2_ISR_MISC_CAUSE_REG 0x55b0
265 /* Buffer Manager registers */
266 #define MVPP2_BM_POOL_BASE_REG(pool) (0x6000 + ((pool) * 4))
267 #define MVPP2_BM_POOL_BASE_ADDR_MASK 0xfffff80
268 #define MVPP2_BM_POOL_SIZE_REG(pool) (0x6040 + ((pool) * 4))
269 #define MVPP2_BM_POOL_SIZE_MASK 0xfff0
270 #define MVPP2_BM_POOL_READ_PTR_REG(pool) (0x6080 + ((pool) * 4))
271 #define MVPP2_BM_POOL_GET_READ_PTR_MASK 0xfff0
272 #define MVPP2_BM_POOL_PTRS_NUM_REG(pool) (0x60c0 + ((pool) * 4))
273 #define MVPP2_BM_POOL_PTRS_NUM_MASK 0xfff0
274 #define MVPP2_BM_BPPI_READ_PTR_REG(pool) (0x6100 + ((pool) * 4))
275 #define MVPP2_BM_BPPI_PTRS_NUM_REG(pool) (0x6140 + ((pool) * 4))
276 #define MVPP2_BM_BPPI_PTR_NUM_MASK 0x7ff
277 #define MVPP2_BM_BPPI_PREFETCH_FULL_MASK BIT(16)
278 #define MVPP2_BM_POOL_CTRL_REG(pool) (0x6200 + ((pool) * 4))
279 #define MVPP2_BM_START_MASK BIT(0)
280 #define MVPP2_BM_STOP_MASK BIT(1)
281 #define MVPP2_BM_STATE_MASK BIT(4)
282 #define MVPP2_BM_LOW_THRESH_OFFS 8
283 #define MVPP2_BM_LOW_THRESH_MASK 0x7f00
284 #define MVPP2_BM_LOW_THRESH_VALUE(val) ((val) << \
285 MVPP2_BM_LOW_THRESH_OFFS)
286 #define MVPP2_BM_HIGH_THRESH_OFFS 16
287 #define MVPP2_BM_HIGH_THRESH_MASK 0x7f0000
288 #define MVPP2_BM_HIGH_THRESH_VALUE(val) ((val) << \
289 MVPP2_BM_HIGH_THRESH_OFFS)
290 #define MVPP2_BM_INTR_CAUSE_REG(pool) (0x6240 + ((pool) * 4))
291 #define MVPP2_BM_RELEASED_DELAY_MASK BIT(0)
292 #define MVPP2_BM_ALLOC_FAILED_MASK BIT(1)
293 #define MVPP2_BM_BPPE_EMPTY_MASK BIT(2)
294 #define MVPP2_BM_BPPE_FULL_MASK BIT(3)
295 #define MVPP2_BM_AVAILABLE_BP_LOW_MASK BIT(4)
296 #define MVPP2_BM_INTR_MASK_REG(pool) (0x6280 + ((pool) * 4))
297 #define MVPP2_BM_PHY_ALLOC_REG(pool) (0x6400 + ((pool) * 4))
298 #define MVPP2_BM_PHY_ALLOC_GRNTD_MASK BIT(0)
299 #define MVPP2_BM_VIRT_ALLOC_REG 0x6440
300 #define MVPP2_BM_ADDR_HIGH_ALLOC 0x6444
301 #define MVPP2_BM_ADDR_HIGH_PHYS_MASK 0xff
302 #define MVPP2_BM_ADDR_HIGH_VIRT_MASK 0xff00
303 #define MVPP2_BM_ADDR_HIGH_VIRT_SHIFT 8
304 #define MVPP2_BM_PHY_RLS_REG(pool) (0x6480 + ((pool) * 4))
305 #define MVPP2_BM_PHY_RLS_MC_BUFF_MASK BIT(0)
306 #define MVPP2_BM_PHY_RLS_PRIO_EN_MASK BIT(1)
307 #define MVPP2_BM_PHY_RLS_GRNTD_MASK BIT(2)
308 #define MVPP2_BM_VIRT_RLS_REG 0x64c0
309 #define MVPP21_BM_MC_RLS_REG 0x64c4
310 #define MVPP2_BM_MC_ID_MASK 0xfff
311 #define MVPP2_BM_FORCE_RELEASE_MASK BIT(12)
312 #define MVPP22_BM_ADDR_HIGH_RLS_REG 0x64c4
313 #define MVPP22_BM_ADDR_HIGH_PHYS_RLS_MASK 0xff
314 #define MVPP22_BM_ADDR_HIGH_VIRT_RLS_MASK 0xff00
315 #define MVPP22_BM_ADDR_HIGH_VIRT_RLS_SHIFT 8
316 #define MVPP22_BM_MC_RLS_REG 0x64d4
318 /* TX Scheduler registers */
319 #define MVPP2_TXP_SCHED_PORT_INDEX_REG 0x8000
320 #define MVPP2_TXP_SCHED_Q_CMD_REG 0x8004
321 #define MVPP2_TXP_SCHED_ENQ_MASK 0xff
322 #define MVPP2_TXP_SCHED_DISQ_OFFSET 8
323 #define MVPP2_TXP_SCHED_CMD_1_REG 0x8010
324 #define MVPP2_TXP_SCHED_PERIOD_REG 0x8018
325 #define MVPP2_TXP_SCHED_MTU_REG 0x801c
326 #define MVPP2_TXP_MTU_MAX 0x7FFFF
327 #define MVPP2_TXP_SCHED_REFILL_REG 0x8020
328 #define MVPP2_TXP_REFILL_TOKENS_ALL_MASK 0x7ffff
329 #define MVPP2_TXP_REFILL_PERIOD_ALL_MASK 0x3ff00000
330 #define MVPP2_TXP_REFILL_PERIOD_MASK(v) ((v) << 20)
331 #define MVPP2_TXP_SCHED_TOKEN_SIZE_REG 0x8024
332 #define MVPP2_TXP_TOKEN_SIZE_MAX 0xffffffff
333 #define MVPP2_TXQ_SCHED_REFILL_REG(q) (0x8040 + ((q) << 2))
334 #define MVPP2_TXQ_REFILL_TOKENS_ALL_MASK 0x7ffff
335 #define MVPP2_TXQ_REFILL_PERIOD_ALL_MASK 0x3ff00000
336 #define MVPP2_TXQ_REFILL_PERIOD_MASK(v) ((v) << 20)
337 #define MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(q) (0x8060 + ((q) << 2))
338 #define MVPP2_TXQ_TOKEN_SIZE_MAX 0x7fffffff
339 #define MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(q) (0x8080 + ((q) << 2))
340 #define MVPP2_TXQ_TOKEN_CNTR_MAX 0xffffffff
342 /* TX general registers */
343 #define MVPP2_TX_SNOOP_REG 0x8800
344 #define MVPP2_TX_PORT_FLUSH_REG 0x8810
345 #define MVPP2_TX_PORT_FLUSH_MASK(port) (1 << (port))
348 #define MVPP2_SRC_ADDR_MIDDLE 0x24
349 #define MVPP2_SRC_ADDR_HIGH 0x28
350 #define MVPP2_PHY_AN_CFG0_REG 0x34
351 #define MVPP2_PHY_AN_STOP_SMI0_MASK BIT(7)
352 #define MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG 0x305c
353 #define MVPP2_EXT_GLOBAL_CTRL_DEFAULT 0x27
355 /* Per-port registers */
356 #define MVPP2_GMAC_CTRL_0_REG 0x0
357 #define MVPP2_GMAC_PORT_EN_MASK BIT(0)
358 #define MVPP2_GMAC_PORT_TYPE_MASK BIT(1)
359 #define MVPP2_GMAC_MAX_RX_SIZE_OFFS 2
360 #define MVPP2_GMAC_MAX_RX_SIZE_MASK 0x7ffc
361 #define MVPP2_GMAC_MIB_CNTR_EN_MASK BIT(15)
362 #define MVPP2_GMAC_CTRL_1_REG 0x4
363 #define MVPP2_GMAC_PERIODIC_XON_EN_MASK BIT(1)
364 #define MVPP2_GMAC_GMII_LB_EN_MASK BIT(5)
365 #define MVPP2_GMAC_PCS_LB_EN_BIT 6
366 #define MVPP2_GMAC_PCS_LB_EN_MASK BIT(6)
367 #define MVPP2_GMAC_SA_LOW_OFFS 7
368 #define MVPP2_GMAC_CTRL_2_REG 0x8
369 #define MVPP2_GMAC_INBAND_AN_MASK BIT(0)
370 #define MVPP2_GMAC_SGMII_MODE_MASK BIT(0)
371 #define MVPP2_GMAC_PCS_ENABLE_MASK BIT(3)
372 #define MVPP2_GMAC_PORT_RGMII_MASK BIT(4)
373 #define MVPP2_GMAC_PORT_DIS_PADING_MASK BIT(5)
374 #define MVPP2_GMAC_PORT_RESET_MASK BIT(6)
375 #define MVPP2_GMAC_CLK_125_BYPS_EN_MASK BIT(9)
376 #define MVPP2_GMAC_AUTONEG_CONFIG 0xc
377 #define MVPP2_GMAC_FORCE_LINK_DOWN BIT(0)
378 #define MVPP2_GMAC_FORCE_LINK_PASS BIT(1)
379 #define MVPP2_GMAC_EN_PCS_AN BIT(2)
380 #define MVPP2_GMAC_AN_BYPASS_EN BIT(3)
381 #define MVPP2_GMAC_CONFIG_MII_SPEED BIT(5)
382 #define MVPP2_GMAC_CONFIG_GMII_SPEED BIT(6)
383 #define MVPP2_GMAC_AN_SPEED_EN BIT(7)
384 #define MVPP2_GMAC_FC_ADV_EN BIT(9)
385 #define MVPP2_GMAC_EN_FC_AN BIT(11)
386 #define MVPP2_GMAC_CONFIG_FULL_DUPLEX BIT(12)
387 #define MVPP2_GMAC_AN_DUPLEX_EN BIT(13)
388 #define MVPP2_GMAC_CHOOSE_SAMPLE_TX_CONFIG BIT(15)
389 #define MVPP2_GMAC_PORT_FIFO_CFG_1_REG 0x1c
390 #define MVPP2_GMAC_TX_FIFO_MIN_TH_OFFS 6
391 #define MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK 0x1fc0
392 #define MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(v) (((v) << 6) & \
393 MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK)
394 #define MVPP2_GMAC_CTRL_4_REG 0x90
395 #define MVPP2_GMAC_CTRL4_EXT_PIN_GMII_SEL_MASK BIT(0)
396 #define MVPP2_GMAC_CTRL4_DP_CLK_SEL_MASK BIT(5)
397 #define MVPP2_GMAC_CTRL4_SYNC_BYPASS_MASK BIT(6)
398 #define MVPP2_GMAC_CTRL4_QSGMII_BYPASS_ACTIVE_MASK BIT(7)
401 * Per-port XGMAC registers. PPv2.2 only, only for GOP port 0,
402 * relative to port->base.
405 /* Port Mac Control0 */
406 #define MVPP22_XLG_CTRL0_REG 0x100
407 #define MVPP22_XLG_PORT_EN BIT(0)
408 #define MVPP22_XLG_MAC_RESETN BIT(1)
409 #define MVPP22_XLG_RX_FC_EN BIT(7)
410 #define MVPP22_XLG_MIBCNT_DIS BIT(13)
411 /* Port Mac Control1 */
412 #define MVPP22_XLG_CTRL1_REG 0x104
413 #define MVPP22_XLG_MAX_RX_SIZE_OFFS 0
414 #define MVPP22_XLG_MAX_RX_SIZE_MASK 0x1fff
415 /* Port Interrupt Mask */
416 #define MVPP22_XLG_INTERRUPT_MASK_REG 0x118
417 #define MVPP22_XLG_INTERRUPT_LINK_CHANGE BIT(1)
418 /* Port Mac Control3 */
419 #define MVPP22_XLG_CTRL3_REG 0x11c
420 #define MVPP22_XLG_CTRL3_MACMODESELECT_MASK (7 << 13)
421 #define MVPP22_XLG_CTRL3_MACMODESELECT_GMAC (0 << 13)
422 #define MVPP22_XLG_CTRL3_MACMODESELECT_10GMAC (1 << 13)
423 /* Port Mac Control4 */
424 #define MVPP22_XLG_CTRL4_REG 0x184
425 #define MVPP22_XLG_FORWARD_802_3X_FC_EN BIT(5)
426 #define MVPP22_XLG_FORWARD_PFC_EN BIT(6)
427 #define MVPP22_XLG_MODE_DMA_1G BIT(12)
428 #define MVPP22_XLG_EN_IDLE_CHECK_FOR_LINK BIT(14)
432 /* Global Configuration 0 */
433 #define MVPP22_XPCS_GLOBAL_CFG_0_REG 0x0
434 #define MVPP22_XPCS_PCSRESET BIT(0)
435 #define MVPP22_XPCS_PCSMODE_OFFS 3
436 #define MVPP22_XPCS_PCSMODE_MASK (0x3 << \
437 MVPP22_XPCS_PCSMODE_OFFS)
438 #define MVPP22_XPCS_LANEACTIVE_OFFS 5
439 #define MVPP22_XPCS_LANEACTIVE_MASK (0x3 << \
440 MVPP22_XPCS_LANEACTIVE_OFFS)
444 #define PCS40G_COMMON_CONTROL 0x14
445 #define FORWARD_ERROR_CORRECTION_MASK BIT(1)
447 #define PCS_CLOCK_RESET 0x14c
448 #define TX_SD_CLK_RESET_MASK BIT(0)
449 #define RX_SD_CLK_RESET_MASK BIT(1)
450 #define MAC_CLK_RESET_MASK BIT(2)
451 #define CLK_DIVISION_RATIO_OFFS 4
452 #define CLK_DIVISION_RATIO_MASK (0x7 << CLK_DIVISION_RATIO_OFFS)
453 #define CLK_DIV_PHASE_SET_MASK BIT(11)
455 /* System Soft Reset 1 */
456 #define GOP_SOFT_RESET_1_REG 0x108
457 #define NETC_GOP_SOFT_RESET_OFFS 6
458 #define NETC_GOP_SOFT_RESET_MASK (0x1 << \
459 NETC_GOP_SOFT_RESET_OFFS)
461 /* Ports Control 0 */
462 #define NETCOMP_PORTS_CONTROL_0_REG 0x110
463 #define NETC_BUS_WIDTH_SELECT_OFFS 1
464 #define NETC_BUS_WIDTH_SELECT_MASK (0x1 << \
465 NETC_BUS_WIDTH_SELECT_OFFS)
466 #define NETC_GIG_RX_DATA_SAMPLE_OFFS 29
467 #define NETC_GIG_RX_DATA_SAMPLE_MASK (0x1 << \
468 NETC_GIG_RX_DATA_SAMPLE_OFFS)
469 #define NETC_CLK_DIV_PHASE_OFFS 31
470 #define NETC_CLK_DIV_PHASE_MASK (0x1 << NETC_CLK_DIV_PHASE_OFFS)
471 /* Ports Control 1 */
472 #define NETCOMP_PORTS_CONTROL_1_REG 0x114
473 #define NETC_PORTS_ACTIVE_OFFSET(p) (0 + p)
474 #define NETC_PORTS_ACTIVE_MASK(p) (0x1 << \
475 NETC_PORTS_ACTIVE_OFFSET(p))
476 #define NETC_PORT_GIG_RF_RESET_OFFS(p) (28 + p)
477 #define NETC_PORT_GIG_RF_RESET_MASK(p) (0x1 << \
478 NETC_PORT_GIG_RF_RESET_OFFS(p))
479 #define NETCOMP_CONTROL_0_REG 0x120
480 #define NETC_GBE_PORT0_SGMII_MODE_OFFS 0
481 #define NETC_GBE_PORT0_SGMII_MODE_MASK (0x1 << \
482 NETC_GBE_PORT0_SGMII_MODE_OFFS)
483 #define NETC_GBE_PORT1_SGMII_MODE_OFFS 1
484 #define NETC_GBE_PORT1_SGMII_MODE_MASK (0x1 << \
485 NETC_GBE_PORT1_SGMII_MODE_OFFS)
486 #define NETC_GBE_PORT1_MII_MODE_OFFS 2
487 #define NETC_GBE_PORT1_MII_MODE_MASK (0x1 << \
488 NETC_GBE_PORT1_MII_MODE_OFFS)
490 #define MVPP22_SMI_MISC_CFG_REG (MVPP22_SMI + 0x04)
491 #define MVPP22_SMI_POLLING_EN BIT(10)
493 #define MVPP22_SMI_PHY_ADDR_REG(port) (MVPP22_SMI + 0x04 + \
496 #define MVPP2_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff
498 /* Descriptor ring Macros */
499 #define MVPP2_QUEUE_NEXT_DESC(q, index) \
500 (((index) < (q)->last_desc) ? ((index) + 1) : 0)
502 /* SMI: 0xc0054 -> offset 0x54 to lms_base */
503 #define MVPP21_SMI 0x0054
504 /* PP2.2: SMI: 0x12a200 -> offset 0x1200 to iface_base */
505 #define MVPP22_SMI 0x1200
506 #define MVPP2_PHY_REG_MASK 0x1f
507 /* SMI register fields */
508 #define MVPP2_SMI_DATA_OFFS 0 /* Data */
509 #define MVPP2_SMI_DATA_MASK (0xffff << MVPP2_SMI_DATA_OFFS)
510 #define MVPP2_SMI_DEV_ADDR_OFFS 16 /* PHY device address */
511 #define MVPP2_SMI_REG_ADDR_OFFS 21 /* PHY device reg addr*/
512 #define MVPP2_SMI_OPCODE_OFFS 26 /* Write/Read opcode */
513 #define MVPP2_SMI_OPCODE_READ (1 << MVPP2_SMI_OPCODE_OFFS)
514 #define MVPP2_SMI_READ_VALID (1 << 27) /* Read Valid */
515 #define MVPP2_SMI_BUSY (1 << 28) /* Busy */
517 #define MVPP2_PHY_ADDR_MASK 0x1f
518 #define MVPP2_PHY_REG_MASK 0x1f
520 /* Additional PPv2.2 offsets */
521 #define MVPP22_MPCS 0x007000
522 #define MVPP22_XPCS 0x007400
523 #define MVPP22_PORT_BASE 0x007e00
524 #define MVPP22_PORT_OFFSET 0x001000
525 #define MVPP22_RFU1 0x318000
527 /* Maximum number of ports */
528 #define MVPP22_GOP_MAC_NUM 4
530 /* Sets the field located at the specified in data */
531 #define MVPP2_RGMII_TX_FIFO_MIN_TH 0x41
532 #define MVPP2_SGMII_TX_FIFO_MIN_TH 0x5
533 #define MVPP2_SGMII2_5_TX_FIFO_MIN_TH 0xb
536 enum mv_netc_topology {
537 MV_NETC_GE_MAC2_SGMII = BIT(0),
538 MV_NETC_GE_MAC3_SGMII = BIT(1),
539 MV_NETC_GE_MAC3_RGMII = BIT(2),
544 MV_NETC_SECOND_PHASE,
547 enum mv_netc_sgmii_xmi_mode {
552 enum mv_netc_mii_mode {
562 /* Various constants */
565 #define MVPP2_TXDONE_COAL_PKTS_THRESH 15
566 #define MVPP2_TXDONE_HRTIMER_PERIOD_NS 1000000UL
567 #define MVPP2_RX_COAL_PKTS 32
568 #define MVPP2_RX_COAL_USEC 100
570 /* The two bytes Marvell header. Either contains a special value used
571 * by Marvell switches when a specific hardware mode is enabled (not
572 * supported by this driver) or is filled automatically by zeroes on
573 * the RX side. Those two bytes being at the front of the Ethernet
574 * header, they allow to have the IP header aligned on a 4 bytes
575 * boundary automatically: the hardware skips those two bytes on its
578 #define MVPP2_MH_SIZE 2
579 #define MVPP2_ETH_TYPE_LEN 2
580 #define MVPP2_PPPOE_HDR_SIZE 8
581 #define MVPP2_VLAN_TAG_LEN 4
583 /* Lbtd 802.3 type */
584 #define MVPP2_IP_LBDT_TYPE 0xfffa
586 #define MVPP2_CPU_D_CACHE_LINE_SIZE 32
587 #define MVPP2_TX_CSUM_MAX_SIZE 9800
589 /* Timeout constants */
590 #define MVPP2_TX_DISABLE_TIMEOUT_MSEC 1000
591 #define MVPP2_TX_PENDING_TIMEOUT_MSEC 1000
593 #define MVPP2_TX_MTU_MAX 0x7ffff
595 /* Maximum number of T-CONTs of PON port */
596 #define MVPP2_MAX_TCONT 16
598 /* Maximum number of supported ports */
599 #define MVPP2_MAX_PORTS 4
601 /* Maximum number of TXQs used by single port */
602 #define MVPP2_MAX_TXQ 8
604 /* Default number of TXQs in use */
605 #define MVPP2_DEFAULT_TXQ 1
607 /* Dfault number of RXQs in use */
608 #define MVPP2_DEFAULT_RXQ 1
609 #define CONFIG_MV_ETH_RXQ 8 /* increment by 8 */
611 /* Max number of Rx descriptors */
612 #define MVPP2_MAX_RXD 16
614 /* Max number of Tx descriptors */
615 #define MVPP2_MAX_TXD 16
617 /* Amount of Tx descriptors that can be reserved at once by CPU */
618 #define MVPP2_CPU_DESC_CHUNK 64
620 /* Max number of Tx descriptors in each aggregated queue */
621 #define MVPP2_AGGR_TXQ_SIZE 256
623 /* Descriptor aligned size */
624 #define MVPP2_DESC_ALIGNED_SIZE 32
626 /* Descriptor alignment mask */
627 #define MVPP2_TX_DESC_ALIGN (MVPP2_DESC_ALIGNED_SIZE - 1)
629 /* RX FIFO constants */
630 #define MVPP21_RX_FIFO_PORT_DATA_SIZE 0x2000
631 #define MVPP21_RX_FIFO_PORT_ATTR_SIZE 0x80
632 #define MVPP22_RX_FIFO_10GB_PORT_DATA_SIZE 0x8000
633 #define MVPP22_RX_FIFO_2_5GB_PORT_DATA_SIZE 0x2000
634 #define MVPP22_RX_FIFO_1GB_PORT_DATA_SIZE 0x1000
635 #define MVPP22_RX_FIFO_10GB_PORT_ATTR_SIZE 0x200
636 #define MVPP22_RX_FIFO_2_5GB_PORT_ATTR_SIZE 0x80
637 #define MVPP22_RX_FIFO_1GB_PORT_ATTR_SIZE 0x40
638 #define MVPP2_RX_FIFO_PORT_MIN_PKT 0x80
640 /* TX general registers */
641 #define MVPP22_TX_FIFO_SIZE_REG(eth_tx_port) (0x8860 + ((eth_tx_port) << 2))
642 #define MVPP22_TX_FIFO_SIZE_MASK 0xf
644 /* TX FIFO constants */
645 #define MVPP2_TX_FIFO_DATA_SIZE_10KB 0xa
646 #define MVPP2_TX_FIFO_DATA_SIZE_3KB 0x3
648 /* RX buffer constants */
649 #define MVPP2_SKB_SHINFO_SIZE \
652 #define MVPP2_RX_PKT_SIZE(mtu) \
653 ALIGN((mtu) + MVPP2_MH_SIZE + MVPP2_VLAN_TAG_LEN + \
654 ETH_HLEN + ETH_FCS_LEN, MVPP2_CPU_D_CACHE_LINE_SIZE)
656 #define MVPP2_RX_BUF_SIZE(pkt_size) ((pkt_size) + NET_SKB_PAD)
657 #define MVPP2_RX_TOTAL_SIZE(buf_size) ((buf_size) + MVPP2_SKB_SHINFO_SIZE)
658 #define MVPP2_RX_MAX_PKT_SIZE(total_size) \
659 ((total_size) - NET_SKB_PAD - MVPP2_SKB_SHINFO_SIZE)
661 #define MVPP2_BIT_TO_BYTE(bit) ((bit) / 8)
663 /* IPv6 max L3 address size */
664 #define MVPP2_MAX_L3_ADDR_SIZE 16
667 #define MVPP2_F_LOOPBACK BIT(0)
669 /* Marvell tag types */
670 enum mvpp2_tag_type {
671 MVPP2_TAG_TYPE_NONE = 0,
672 MVPP2_TAG_TYPE_MH = 1,
673 MVPP2_TAG_TYPE_DSA = 2,
674 MVPP2_TAG_TYPE_EDSA = 3,
675 MVPP2_TAG_TYPE_VLAN = 4,
676 MVPP2_TAG_TYPE_LAST = 5
679 /* Parser constants */
680 #define MVPP2_PRS_TCAM_SRAM_SIZE 256
681 #define MVPP2_PRS_TCAM_WORDS 6
682 #define MVPP2_PRS_SRAM_WORDS 4
683 #define MVPP2_PRS_FLOW_ID_SIZE 64
684 #define MVPP2_PRS_FLOW_ID_MASK 0x3f
685 #define MVPP2_PRS_TCAM_ENTRY_INVALID 1
686 #define MVPP2_PRS_TCAM_DSA_TAGGED_BIT BIT(5)
687 #define MVPP2_PRS_IPV4_HEAD 0x40
688 #define MVPP2_PRS_IPV4_HEAD_MASK 0xf0
689 #define MVPP2_PRS_IPV4_MC 0xe0
690 #define MVPP2_PRS_IPV4_MC_MASK 0xf0
691 #define MVPP2_PRS_IPV4_BC_MASK 0xff
692 #define MVPP2_PRS_IPV4_IHL 0x5
693 #define MVPP2_PRS_IPV4_IHL_MASK 0xf
694 #define MVPP2_PRS_IPV6_MC 0xff
695 #define MVPP2_PRS_IPV6_MC_MASK 0xff
696 #define MVPP2_PRS_IPV6_HOP_MASK 0xff
697 #define MVPP2_PRS_TCAM_PROTO_MASK 0xff
698 #define MVPP2_PRS_TCAM_PROTO_MASK_L 0x3f
699 #define MVPP2_PRS_DBL_VLANS_MAX 100
702 * - lookup ID - 4 bits
704 * - additional information - 1 byte
705 * - header data - 8 bytes
706 * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(5)->(0).
708 #define MVPP2_PRS_AI_BITS 8
709 #define MVPP2_PRS_PORT_MASK 0xff
710 #define MVPP2_PRS_LU_MASK 0xf
711 #define MVPP2_PRS_TCAM_DATA_BYTE(offs) \
712 (((offs) - ((offs) % 2)) * 2 + ((offs) % 2))
713 #define MVPP2_PRS_TCAM_DATA_BYTE_EN(offs) \
714 (((offs) * 2) - ((offs) % 2) + 2)
715 #define MVPP2_PRS_TCAM_AI_BYTE 16
716 #define MVPP2_PRS_TCAM_PORT_BYTE 17
717 #define MVPP2_PRS_TCAM_LU_BYTE 20
718 #define MVPP2_PRS_TCAM_EN_OFFS(offs) ((offs) + 2)
719 #define MVPP2_PRS_TCAM_INV_WORD 5
720 /* Tcam entries ID */
721 #define MVPP2_PE_DROP_ALL 0
722 #define MVPP2_PE_FIRST_FREE_TID 1
723 #define MVPP2_PE_LAST_FREE_TID (MVPP2_PRS_TCAM_SRAM_SIZE - 31)
724 #define MVPP2_PE_IP6_EXT_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 30)
725 #define MVPP2_PE_MAC_MC_IP6 (MVPP2_PRS_TCAM_SRAM_SIZE - 29)
726 #define MVPP2_PE_IP6_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 28)
727 #define MVPP2_PE_IP4_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 27)
728 #define MVPP2_PE_LAST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 26)
729 #define MVPP2_PE_FIRST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 19)
730 #define MVPP2_PE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 18)
731 #define MVPP2_PE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 17)
732 #define MVPP2_PE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 16)
733 #define MVPP2_PE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 15)
734 #define MVPP2_PE_ETYPE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 14)
735 #define MVPP2_PE_ETYPE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 13)
736 #define MVPP2_PE_ETYPE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 12)
737 #define MVPP2_PE_ETYPE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 11)
738 #define MVPP2_PE_MH_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 10)
739 #define MVPP2_PE_DSA_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 9)
740 #define MVPP2_PE_IP6_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 8)
741 #define MVPP2_PE_IP4_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 7)
742 #define MVPP2_PE_ETH_TYPE_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 6)
743 #define MVPP2_PE_VLAN_DBL (MVPP2_PRS_TCAM_SRAM_SIZE - 5)
744 #define MVPP2_PE_VLAN_NONE (MVPP2_PRS_TCAM_SRAM_SIZE - 4)
745 #define MVPP2_PE_MAC_MC_ALL (MVPP2_PRS_TCAM_SRAM_SIZE - 3)
746 #define MVPP2_PE_MAC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 2)
747 #define MVPP2_PE_MAC_NON_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 1)
750 * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(3)->(0).
752 #define MVPP2_PRS_SRAM_RI_OFFS 0
753 #define MVPP2_PRS_SRAM_RI_WORD 0
754 #define MVPP2_PRS_SRAM_RI_CTRL_OFFS 32
755 #define MVPP2_PRS_SRAM_RI_CTRL_WORD 1
756 #define MVPP2_PRS_SRAM_RI_CTRL_BITS 32
757 #define MVPP2_PRS_SRAM_SHIFT_OFFS 64
758 #define MVPP2_PRS_SRAM_SHIFT_SIGN_BIT 72
759 #define MVPP2_PRS_SRAM_UDF_OFFS 73
760 #define MVPP2_PRS_SRAM_UDF_BITS 8
761 #define MVPP2_PRS_SRAM_UDF_MASK 0xff
762 #define MVPP2_PRS_SRAM_UDF_SIGN_BIT 81
763 #define MVPP2_PRS_SRAM_UDF_TYPE_OFFS 82
764 #define MVPP2_PRS_SRAM_UDF_TYPE_MASK 0x7
765 #define MVPP2_PRS_SRAM_UDF_TYPE_L3 1
766 #define MVPP2_PRS_SRAM_UDF_TYPE_L4 4
767 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS 85
768 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK 0x3
769 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD 1
770 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP4_ADD 2
771 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP6_ADD 3
772 #define MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS 87
773 #define MVPP2_PRS_SRAM_OP_SEL_UDF_BITS 2
774 #define MVPP2_PRS_SRAM_OP_SEL_UDF_MASK 0x3
775 #define MVPP2_PRS_SRAM_OP_SEL_UDF_ADD 0
776 #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP4_ADD 2
777 #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP6_ADD 3
778 #define MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS 89
779 #define MVPP2_PRS_SRAM_AI_OFFS 90
780 #define MVPP2_PRS_SRAM_AI_CTRL_OFFS 98
781 #define MVPP2_PRS_SRAM_AI_CTRL_BITS 8
782 #define MVPP2_PRS_SRAM_AI_MASK 0xff
783 #define MVPP2_PRS_SRAM_NEXT_LU_OFFS 106
784 #define MVPP2_PRS_SRAM_NEXT_LU_MASK 0xf
785 #define MVPP2_PRS_SRAM_LU_DONE_BIT 110
786 #define MVPP2_PRS_SRAM_LU_GEN_BIT 111
788 /* Sram result info bits assignment */
789 #define MVPP2_PRS_RI_MAC_ME_MASK 0x1
790 #define MVPP2_PRS_RI_DSA_MASK 0x2
791 #define MVPP2_PRS_RI_VLAN_MASK (BIT(2) | BIT(3))
792 #define MVPP2_PRS_RI_VLAN_NONE 0x0
793 #define MVPP2_PRS_RI_VLAN_SINGLE BIT(2)
794 #define MVPP2_PRS_RI_VLAN_DOUBLE BIT(3)
795 #define MVPP2_PRS_RI_VLAN_TRIPLE (BIT(2) | BIT(3))
796 #define MVPP2_PRS_RI_CPU_CODE_MASK 0x70
797 #define MVPP2_PRS_RI_CPU_CODE_RX_SPEC BIT(4)
798 #define MVPP2_PRS_RI_L2_CAST_MASK (BIT(9) | BIT(10))
799 #define MVPP2_PRS_RI_L2_UCAST 0x0
800 #define MVPP2_PRS_RI_L2_MCAST BIT(9)
801 #define MVPP2_PRS_RI_L2_BCAST BIT(10)
802 #define MVPP2_PRS_RI_PPPOE_MASK 0x800
803 #define MVPP2_PRS_RI_L3_PROTO_MASK (BIT(12) | BIT(13) | BIT(14))
804 #define MVPP2_PRS_RI_L3_UN 0x0
805 #define MVPP2_PRS_RI_L3_IP4 BIT(12)
806 #define MVPP2_PRS_RI_L3_IP4_OPT BIT(13)
807 #define MVPP2_PRS_RI_L3_IP4_OTHER (BIT(12) | BIT(13))
808 #define MVPP2_PRS_RI_L3_IP6 BIT(14)
809 #define MVPP2_PRS_RI_L3_IP6_EXT (BIT(12) | BIT(14))
810 #define MVPP2_PRS_RI_L3_ARP (BIT(13) | BIT(14))
811 #define MVPP2_PRS_RI_L3_ADDR_MASK (BIT(15) | BIT(16))
812 #define MVPP2_PRS_RI_L3_UCAST 0x0
813 #define MVPP2_PRS_RI_L3_MCAST BIT(15)
814 #define MVPP2_PRS_RI_L3_BCAST (BIT(15) | BIT(16))
815 #define MVPP2_PRS_RI_IP_FRAG_MASK 0x20000
816 #define MVPP2_PRS_RI_UDF3_MASK 0x300000
817 #define MVPP2_PRS_RI_UDF3_RX_SPECIAL BIT(21)
818 #define MVPP2_PRS_RI_L4_PROTO_MASK 0x1c00000
819 #define MVPP2_PRS_RI_L4_TCP BIT(22)
820 #define MVPP2_PRS_RI_L4_UDP BIT(23)
821 #define MVPP2_PRS_RI_L4_OTHER (BIT(22) | BIT(23))
822 #define MVPP2_PRS_RI_UDF7_MASK 0x60000000
823 #define MVPP2_PRS_RI_UDF7_IP6_LITE BIT(29)
824 #define MVPP2_PRS_RI_DROP_MASK 0x80000000
826 /* Sram additional info bits assignment */
827 #define MVPP2_PRS_IPV4_DIP_AI_BIT BIT(0)
828 #define MVPP2_PRS_IPV6_NO_EXT_AI_BIT BIT(0)
829 #define MVPP2_PRS_IPV6_EXT_AI_BIT BIT(1)
830 #define MVPP2_PRS_IPV6_EXT_AH_AI_BIT BIT(2)
831 #define MVPP2_PRS_IPV6_EXT_AH_LEN_AI_BIT BIT(3)
832 #define MVPP2_PRS_IPV6_EXT_AH_L4_AI_BIT BIT(4)
833 #define MVPP2_PRS_SINGLE_VLAN_AI 0
834 #define MVPP2_PRS_DBL_VLAN_AI_BIT BIT(7)
837 #define MVPP2_PRS_TAGGED true
838 #define MVPP2_PRS_UNTAGGED false
839 #define MVPP2_PRS_EDSA true
840 #define MVPP2_PRS_DSA false
842 /* MAC entries, shadow udf */
844 MVPP2_PRS_UDF_MAC_DEF,
845 MVPP2_PRS_UDF_MAC_RANGE,
846 MVPP2_PRS_UDF_L2_DEF,
847 MVPP2_PRS_UDF_L2_DEF_COPY,
848 MVPP2_PRS_UDF_L2_USER,
852 enum mvpp2_prs_lookup {
866 enum mvpp2_prs_l3_cast {
867 MVPP2_PRS_L3_UNI_CAST,
868 MVPP2_PRS_L3_MULTI_CAST,
869 MVPP2_PRS_L3_BROAD_CAST
872 /* Classifier constants */
873 #define MVPP2_CLS_FLOWS_TBL_SIZE 512
874 #define MVPP2_CLS_FLOWS_TBL_DATA_WORDS 3
875 #define MVPP2_CLS_LKP_TBL_SIZE 64
878 #define MVPP2_BM_POOLS_NUM 1
879 #define MVPP2_BM_LONG_BUF_NUM 16
880 #define MVPP2_BM_SHORT_BUF_NUM 16
881 #define MVPP2_BM_POOL_SIZE_MAX (16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4)
882 #define MVPP2_BM_POOL_PTR_ALIGN 128
883 #define MVPP2_BM_SWF_LONG_POOL(port) 0
885 /* BM cookie (32 bits) definition */
886 #define MVPP2_BM_COOKIE_POOL_OFFS 8
887 #define MVPP2_BM_COOKIE_CPU_OFFS 24
889 /* BM short pool packet size
890 * These value assure that for SWF the total number
891 * of bytes allocated for each buffer will be 512
893 #define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(512)
903 /* Shared Packet Processor resources */
905 /* Shared registers' base addresses */
907 void __iomem *lms_base;
908 void __iomem *iface_base;
909 void __iomem *mdio_base;
911 void __iomem *mpcs_base;
912 void __iomem *xpcs_base;
913 void __iomem *rfu1_base;
917 /* List of pointers to port structures */
918 struct mvpp2_port **port_list;
920 /* Aggregated TXQs */
921 struct mvpp2_tx_queue *aggr_txqs;
924 struct mvpp2_bm_pool *bm_pools;
926 /* PRS shadow table */
927 struct mvpp2_prs_shadow *prs_shadow;
928 /* PRS auxiliary table for double vlan entries control */
929 bool *prs_double_vlans;
935 enum { MVPP21, MVPP22 } hw_version;
937 /* Maximum number of RXQs per port */
938 unsigned int max_port_rxqs;
945 struct mvpp2_pcpu_stats {
955 /* Index of the port from the "group of ports" complex point
964 /* Per-port registers' base address */
967 struct mvpp2_rx_queue **rxqs;
968 struct mvpp2_tx_queue **txqs;
972 u32 pending_cause_rx;
974 /* Per-CPU port control */
975 struct mvpp2_port_pcpu __percpu *pcpu;
982 struct mvpp2_pcpu_stats __percpu *stats;
984 struct phy_device *phy_dev;
985 phy_interface_t phy_interface;
993 unsigned int phy_speed; /* SGMII 1Gbps vs 2.5Gbps */
995 struct mvpp2_bm_pool *pool_long;
996 struct mvpp2_bm_pool *pool_short;
998 /* Index of first port's physical RXQ */
1001 u8 dev_addr[ETH_ALEN];
1004 /* The mvpp2_tx_desc and mvpp2_rx_desc structures describe the
1005 * layout of the transmit and reception DMA descriptors, and their
1006 * layout is therefore defined by the hardware design
1009 #define MVPP2_TXD_L3_OFF_SHIFT 0
1010 #define MVPP2_TXD_IP_HLEN_SHIFT 8
1011 #define MVPP2_TXD_L4_CSUM_FRAG BIT(13)
1012 #define MVPP2_TXD_L4_CSUM_NOT BIT(14)
1013 #define MVPP2_TXD_IP_CSUM_DISABLE BIT(15)
1014 #define MVPP2_TXD_PADDING_DISABLE BIT(23)
1015 #define MVPP2_TXD_L4_UDP BIT(24)
1016 #define MVPP2_TXD_L3_IP6 BIT(26)
1017 #define MVPP2_TXD_L_DESC BIT(28)
1018 #define MVPP2_TXD_F_DESC BIT(29)
1020 #define MVPP2_RXD_ERR_SUMMARY BIT(15)
1021 #define MVPP2_RXD_ERR_CODE_MASK (BIT(13) | BIT(14))
1022 #define MVPP2_RXD_ERR_CRC 0x0
1023 #define MVPP2_RXD_ERR_OVERRUN BIT(13)
1024 #define MVPP2_RXD_ERR_RESOURCE (BIT(13) | BIT(14))
1025 #define MVPP2_RXD_BM_POOL_ID_OFFS 16
1026 #define MVPP2_RXD_BM_POOL_ID_MASK (BIT(16) | BIT(17) | BIT(18))
1027 #define MVPP2_RXD_HWF_SYNC BIT(21)
1028 #define MVPP2_RXD_L4_CSUM_OK BIT(22)
1029 #define MVPP2_RXD_IP4_HEADER_ERR BIT(24)
1030 #define MVPP2_RXD_L4_TCP BIT(25)
1031 #define MVPP2_RXD_L4_UDP BIT(26)
1032 #define MVPP2_RXD_L3_IP4 BIT(28)
1033 #define MVPP2_RXD_L3_IP6 BIT(30)
1034 #define MVPP2_RXD_BUF_HDR BIT(31)
1036 /* HW TX descriptor for PPv2.1 */
1037 struct mvpp21_tx_desc {
1038 u32 command; /* Options used by HW for packet transmitting.*/
1039 u8 packet_offset; /* the offset from the buffer beginning */
1040 u8 phys_txq; /* destination queue ID */
1041 u16 data_size; /* data size of transmitted packet in bytes */
1042 u32 buf_dma_addr; /* physical addr of transmitted buffer */
1043 u32 buf_cookie; /* cookie for access to TX buffer in tx path */
1044 u32 reserved1[3]; /* hw_cmd (for future use, BM, PON, PNC) */
1045 u32 reserved2; /* reserved (for future use) */
1048 /* HW RX descriptor for PPv2.1 */
1049 struct mvpp21_rx_desc {
1050 u32 status; /* info about received packet */
1051 u16 reserved1; /* parser_info (for future use, PnC) */
1052 u16 data_size; /* size of received packet in bytes */
1053 u32 buf_dma_addr; /* physical address of the buffer */
1054 u32 buf_cookie; /* cookie for access to RX buffer in rx path */
1055 u16 reserved2; /* gem_port_id (for future use, PON) */
1056 u16 reserved3; /* csum_l4 (for future use, PnC) */
1057 u8 reserved4; /* bm_qset (for future use, BM) */
1059 u16 reserved6; /* classify_info (for future use, PnC) */
1060 u32 reserved7; /* flow_id (for future use, PnC) */
1064 /* HW TX descriptor for PPv2.2 */
1065 struct mvpp22_tx_desc {
1071 u64 buf_dma_addr_ptp;
1072 u64 buf_cookie_misc;
1075 /* HW RX descriptor for PPv2.2 */
1076 struct mvpp22_rx_desc {
1082 u64 buf_dma_addr_key_hash;
1083 u64 buf_cookie_misc;
1086 /* Opaque type used by the driver to manipulate the HW TX and RX
1089 struct mvpp2_tx_desc {
1091 struct mvpp21_tx_desc pp21;
1092 struct mvpp22_tx_desc pp22;
1096 struct mvpp2_rx_desc {
1098 struct mvpp21_rx_desc pp21;
1099 struct mvpp22_rx_desc pp22;
1103 /* Per-CPU Tx queue control */
1104 struct mvpp2_txq_pcpu {
1107 /* Number of Tx DMA descriptors in the descriptor ring */
1110 /* Number of currently used Tx DMA descriptor in the
1115 /* Number of Tx DMA descriptors reserved for each CPU */
1118 /* Index of last TX DMA descriptor that was inserted */
1121 /* Index of the TX DMA descriptor to be cleaned up */
1125 struct mvpp2_tx_queue {
1126 /* Physical number of this Tx queue */
1129 /* Logical number of this Tx queue */
1132 /* Number of Tx DMA descriptors in the descriptor ring */
1135 /* Number of currently used Tx DMA descriptor in the descriptor ring */
1138 /* Per-CPU control of physical Tx queues */
1139 struct mvpp2_txq_pcpu __percpu *pcpu;
1143 /* Virtual address of thex Tx DMA descriptors array */
1144 struct mvpp2_tx_desc *descs;
1146 /* DMA address of the Tx DMA descriptors array */
1147 dma_addr_t descs_dma;
1149 /* Index of the last Tx DMA descriptor */
1152 /* Index of the next Tx DMA descriptor to process */
1153 int next_desc_to_proc;
1156 struct mvpp2_rx_queue {
1157 /* RX queue number, in the range 0-31 for physical RXQs */
1160 /* Num of rx descriptors in the rx descriptor ring */
1166 /* Virtual address of the RX DMA descriptors array */
1167 struct mvpp2_rx_desc *descs;
1169 /* DMA address of the RX DMA descriptors array */
1170 dma_addr_t descs_dma;
1172 /* Index of the last RX DMA descriptor */
1175 /* Index of the next RX DMA descriptor to process */
1176 int next_desc_to_proc;
1178 /* ID of port to which physical RXQ is mapped */
1181 /* Port's logic RXQ number to which physical RXQ is mapped */
1185 union mvpp2_prs_tcam_entry {
1186 u32 word[MVPP2_PRS_TCAM_WORDS];
1187 u8 byte[MVPP2_PRS_TCAM_WORDS * 4];
1190 union mvpp2_prs_sram_entry {
1191 u32 word[MVPP2_PRS_SRAM_WORDS];
1192 u8 byte[MVPP2_PRS_SRAM_WORDS * 4];
1195 struct mvpp2_prs_entry {
1197 union mvpp2_prs_tcam_entry tcam;
1198 union mvpp2_prs_sram_entry sram;
1201 struct mvpp2_prs_shadow {
1208 /* User defined offset */
1216 struct mvpp2_cls_flow_entry {
1218 u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
1221 struct mvpp2_cls_lookup_entry {
1227 struct mvpp2_bm_pool {
1228 /* Pool number in the range 0-7 */
1230 enum mvpp2_bm_type type;
1232 /* Buffer Pointers Pool External (BPPE) size */
1234 /* Number of buffers for this pool */
1236 /* Pool buffer size */
1241 /* BPPE virtual base address */
1242 unsigned long *virt_addr;
1243 /* BPPE DMA base address */
1244 dma_addr_t dma_addr;
1246 /* Ports using BM pool */
1249 /* Occupied buffers indicator */
1253 /* Static declaractions */
1255 /* Number of RXQs used by single port */
1256 static int rxq_number = MVPP2_DEFAULT_RXQ;
1257 /* Number of TXQs used by single port */
1258 static int txq_number = MVPP2_DEFAULT_TXQ;
1262 #define MVPP2_DRIVER_NAME "mvpp2"
1263 #define MVPP2_DRIVER_VERSION "1.0"
1266 * U-Boot internal data, mostly uncached buffers for descriptors and data
1268 struct buffer_location {
1269 struct mvpp2_tx_desc *aggr_tx_descs;
1270 struct mvpp2_tx_desc *tx_descs;
1271 struct mvpp2_rx_desc *rx_descs;
1272 unsigned long *bm_pool[MVPP2_BM_POOLS_NUM];
1273 unsigned long *rx_buffer[MVPP2_BM_LONG_BUF_NUM];
1278 * All 4 interfaces use the same global buffer, since only one interface
1279 * can be enabled at once
1281 static struct buffer_location buffer_loc;
1284 * Page table entries are set to 1MB, or multiples of 1MB
1285 * (not < 1MB). driver uses less bd's so use 1MB bdspace.
1287 #define BD_SPACE (1 << 20)
1289 /* Utility/helper methods */
1291 static void mvpp2_write(struct mvpp2 *priv, u32 offset, u32 data)
1293 writel(data, priv->base + offset);
1296 static u32 mvpp2_read(struct mvpp2 *priv, u32 offset)
1298 return readl(priv->base + offset);
1301 static void mvpp2_txdesc_dma_addr_set(struct mvpp2_port *port,
1302 struct mvpp2_tx_desc *tx_desc,
1303 dma_addr_t dma_addr)
1305 if (port->priv->hw_version == MVPP21) {
1306 tx_desc->pp21.buf_dma_addr = dma_addr;
1308 u64 val = (u64)dma_addr;
1310 tx_desc->pp22.buf_dma_addr_ptp &= ~GENMASK_ULL(40, 0);
1311 tx_desc->pp22.buf_dma_addr_ptp |= val;
1315 static void mvpp2_txdesc_size_set(struct mvpp2_port *port,
1316 struct mvpp2_tx_desc *tx_desc,
1319 if (port->priv->hw_version == MVPP21)
1320 tx_desc->pp21.data_size = size;
1322 tx_desc->pp22.data_size = size;
1325 static void mvpp2_txdesc_txq_set(struct mvpp2_port *port,
1326 struct mvpp2_tx_desc *tx_desc,
1329 if (port->priv->hw_version == MVPP21)
1330 tx_desc->pp21.phys_txq = txq;
1332 tx_desc->pp22.phys_txq = txq;
1335 static void mvpp2_txdesc_cmd_set(struct mvpp2_port *port,
1336 struct mvpp2_tx_desc *tx_desc,
1337 unsigned int command)
1339 if (port->priv->hw_version == MVPP21)
1340 tx_desc->pp21.command = command;
1342 tx_desc->pp22.command = command;
1345 static void mvpp2_txdesc_offset_set(struct mvpp2_port *port,
1346 struct mvpp2_tx_desc *tx_desc,
1347 unsigned int offset)
1349 if (port->priv->hw_version == MVPP21)
1350 tx_desc->pp21.packet_offset = offset;
1352 tx_desc->pp22.packet_offset = offset;
1355 static dma_addr_t mvpp2_rxdesc_dma_addr_get(struct mvpp2_port *port,
1356 struct mvpp2_rx_desc *rx_desc)
1358 if (port->priv->hw_version == MVPP21)
1359 return rx_desc->pp21.buf_dma_addr;
1361 return rx_desc->pp22.buf_dma_addr_key_hash & GENMASK_ULL(40, 0);
1364 static unsigned long mvpp2_rxdesc_cookie_get(struct mvpp2_port *port,
1365 struct mvpp2_rx_desc *rx_desc)
1367 if (port->priv->hw_version == MVPP21)
1368 return rx_desc->pp21.buf_cookie;
1370 return rx_desc->pp22.buf_cookie_misc & GENMASK_ULL(40, 0);
1373 static size_t mvpp2_rxdesc_size_get(struct mvpp2_port *port,
1374 struct mvpp2_rx_desc *rx_desc)
1376 if (port->priv->hw_version == MVPP21)
1377 return rx_desc->pp21.data_size;
1379 return rx_desc->pp22.data_size;
1382 static u32 mvpp2_rxdesc_status_get(struct mvpp2_port *port,
1383 struct mvpp2_rx_desc *rx_desc)
1385 if (port->priv->hw_version == MVPP21)
1386 return rx_desc->pp21.status;
1388 return rx_desc->pp22.status;
1391 static void mvpp2_txq_inc_get(struct mvpp2_txq_pcpu *txq_pcpu)
1393 txq_pcpu->txq_get_index++;
1394 if (txq_pcpu->txq_get_index == txq_pcpu->size)
1395 txq_pcpu->txq_get_index = 0;
1398 /* Get number of physical egress port */
1399 static inline int mvpp2_egress_port(struct mvpp2_port *port)
1401 return MVPP2_MAX_TCONT + port->id;
1404 /* Get number of physical TXQ */
1405 static inline int mvpp2_txq_phys(int port, int txq)
1407 return (MVPP2_MAX_TCONT + port) * MVPP2_MAX_TXQ + txq;
1410 /* Parser configuration routines */
1412 /* Update parser tcam and sram hw entries */
1413 static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
1417 if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
1420 /* Clear entry invalidation bit */
1421 pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] &= ~MVPP2_PRS_TCAM_INV_MASK;
1423 /* Write tcam index - indirect access */
1424 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
1425 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1426 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam.word[i]);
1428 /* Write sram index - indirect access */
1429 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
1430 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1431 mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), pe->sram.word[i]);
1436 /* Read tcam entry from hw */
1437 static int mvpp2_prs_hw_read(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
1441 if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
1444 /* Write tcam index - indirect access */
1445 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
1447 pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] = mvpp2_read(priv,
1448 MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD));
1449 if (pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] & MVPP2_PRS_TCAM_INV_MASK)
1450 return MVPP2_PRS_TCAM_ENTRY_INVALID;
1452 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1453 pe->tcam.word[i] = mvpp2_read(priv, MVPP2_PRS_TCAM_DATA_REG(i));
1455 /* Write sram index - indirect access */
1456 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
1457 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1458 pe->sram.word[i] = mvpp2_read(priv, MVPP2_PRS_SRAM_DATA_REG(i));
1463 /* Invalidate tcam hw entry */
1464 static void mvpp2_prs_hw_inv(struct mvpp2 *priv, int index)
1466 /* Write index - indirect access */
1467 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
1468 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD),
1469 MVPP2_PRS_TCAM_INV_MASK);
1472 /* Enable shadow table entry and set its lookup ID */
1473 static void mvpp2_prs_shadow_set(struct mvpp2 *priv, int index, int lu)
1475 priv->prs_shadow[index].valid = true;
1476 priv->prs_shadow[index].lu = lu;
1479 /* Update ri fields in shadow table entry */
1480 static void mvpp2_prs_shadow_ri_set(struct mvpp2 *priv, int index,
1481 unsigned int ri, unsigned int ri_mask)
1483 priv->prs_shadow[index].ri_mask = ri_mask;
1484 priv->prs_shadow[index].ri = ri;
1487 /* Update lookup field in tcam sw entry */
1488 static void mvpp2_prs_tcam_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu)
1490 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_LU_BYTE);
1492 pe->tcam.byte[MVPP2_PRS_TCAM_LU_BYTE] = lu;
1493 pe->tcam.byte[enable_off] = MVPP2_PRS_LU_MASK;
1496 /* Update mask for single port in tcam sw entry */
1497 static void mvpp2_prs_tcam_port_set(struct mvpp2_prs_entry *pe,
1498 unsigned int port, bool add)
1500 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1503 pe->tcam.byte[enable_off] &= ~(1 << port);
1505 pe->tcam.byte[enable_off] |= 1 << port;
1508 /* Update port map in tcam sw entry */
1509 static void mvpp2_prs_tcam_port_map_set(struct mvpp2_prs_entry *pe,
1512 unsigned char port_mask = MVPP2_PRS_PORT_MASK;
1513 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1515 pe->tcam.byte[MVPP2_PRS_TCAM_PORT_BYTE] = 0;
1516 pe->tcam.byte[enable_off] &= ~port_mask;
1517 pe->tcam.byte[enable_off] |= ~ports & MVPP2_PRS_PORT_MASK;
1520 /* Obtain port map from tcam sw entry */
1521 static unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe)
1523 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1525 return ~(pe->tcam.byte[enable_off]) & MVPP2_PRS_PORT_MASK;
1528 /* Set byte of data and its enable bits in tcam sw entry */
1529 static void mvpp2_prs_tcam_data_byte_set(struct mvpp2_prs_entry *pe,
1530 unsigned int offs, unsigned char byte,
1531 unsigned char enable)
1533 pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)] = byte;
1534 pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)] = enable;
1537 /* Get byte of data and its enable bits from tcam sw entry */
1538 static void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe,
1539 unsigned int offs, unsigned char *byte,
1540 unsigned char *enable)
1542 *byte = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)];
1543 *enable = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)];
1546 /* Set ethertype in tcam sw entry */
1547 static void mvpp2_prs_match_etype(struct mvpp2_prs_entry *pe, int offset,
1548 unsigned short ethertype)
1550 mvpp2_prs_tcam_data_byte_set(pe, offset + 0, ethertype >> 8, 0xff);
1551 mvpp2_prs_tcam_data_byte_set(pe, offset + 1, ethertype & 0xff, 0xff);
1554 /* Set bits in sram sw entry */
1555 static void mvpp2_prs_sram_bits_set(struct mvpp2_prs_entry *pe, int bit_num,
1558 pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] |= (val << (bit_num % 8));
1561 /* Clear bits in sram sw entry */
1562 static void mvpp2_prs_sram_bits_clear(struct mvpp2_prs_entry *pe, int bit_num,
1565 pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] &= ~(val << (bit_num % 8));
1568 /* Update ri bits in sram sw entry */
1569 static void mvpp2_prs_sram_ri_update(struct mvpp2_prs_entry *pe,
1570 unsigned int bits, unsigned int mask)
1574 for (i = 0; i < MVPP2_PRS_SRAM_RI_CTRL_BITS; i++) {
1575 int ri_off = MVPP2_PRS_SRAM_RI_OFFS;
1577 if (!(mask & BIT(i)))
1581 mvpp2_prs_sram_bits_set(pe, ri_off + i, 1);
1583 mvpp2_prs_sram_bits_clear(pe, ri_off + i, 1);
1585 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_RI_CTRL_OFFS + i, 1);
1589 /* Update ai bits in sram sw entry */
1590 static void mvpp2_prs_sram_ai_update(struct mvpp2_prs_entry *pe,
1591 unsigned int bits, unsigned int mask)
1594 int ai_off = MVPP2_PRS_SRAM_AI_OFFS;
1596 for (i = 0; i < MVPP2_PRS_SRAM_AI_CTRL_BITS; i++) {
1598 if (!(mask & BIT(i)))
1602 mvpp2_prs_sram_bits_set(pe, ai_off + i, 1);
1604 mvpp2_prs_sram_bits_clear(pe, ai_off + i, 1);
1606 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_AI_CTRL_OFFS + i, 1);
1610 /* Read ai bits from sram sw entry */
1611 static int mvpp2_prs_sram_ai_get(struct mvpp2_prs_entry *pe)
1614 int ai_off = MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_AI_OFFS);
1615 int ai_en_off = ai_off + 1;
1616 int ai_shift = MVPP2_PRS_SRAM_AI_OFFS % 8;
1618 bits = (pe->sram.byte[ai_off] >> ai_shift) |
1619 (pe->sram.byte[ai_en_off] << (8 - ai_shift));
1624 /* In sram sw entry set lookup ID field of the tcam key to be used in the next
1627 static void mvpp2_prs_sram_next_lu_set(struct mvpp2_prs_entry *pe,
1630 int sram_next_off = MVPP2_PRS_SRAM_NEXT_LU_OFFS;
1632 mvpp2_prs_sram_bits_clear(pe, sram_next_off,
1633 MVPP2_PRS_SRAM_NEXT_LU_MASK);
1634 mvpp2_prs_sram_bits_set(pe, sram_next_off, lu);
1637 /* In the sram sw entry set sign and value of the next lookup offset
1638 * and the offset value generated to the classifier
1640 static void mvpp2_prs_sram_shift_set(struct mvpp2_prs_entry *pe, int shift,
1645 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
1648 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
1652 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_SHIFT_OFFS)] =
1653 (unsigned char)shift;
1655 /* Reset and set operation */
1656 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS,
1657 MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK);
1658 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS, op);
1660 /* Set base offset as current */
1661 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
1664 /* In the sram sw entry set sign and value of the user defined offset
1665 * generated to the classifier
1667 static void mvpp2_prs_sram_offset_set(struct mvpp2_prs_entry *pe,
1668 unsigned int type, int offset,
1673 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
1674 offset = 0 - offset;
1676 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
1680 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_OFFS,
1681 MVPP2_PRS_SRAM_UDF_MASK);
1682 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_OFFS, offset);
1683 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
1684 MVPP2_PRS_SRAM_UDF_BITS)] &=
1685 ~(MVPP2_PRS_SRAM_UDF_MASK >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
1686 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
1687 MVPP2_PRS_SRAM_UDF_BITS)] |=
1688 (offset >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
1690 /* Set offset type */
1691 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS,
1692 MVPP2_PRS_SRAM_UDF_TYPE_MASK);
1693 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS, type);
1695 /* Set offset operation */
1696 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS,
1697 MVPP2_PRS_SRAM_OP_SEL_UDF_MASK);
1698 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS, op);
1700 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
1701 MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] &=
1702 ~(MVPP2_PRS_SRAM_OP_SEL_UDF_MASK >>
1703 (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
1705 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
1706 MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] |=
1707 (op >> (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
1709 /* Set base offset as current */
1710 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
1713 /* Find parser flow entry */
1714 static struct mvpp2_prs_entry *mvpp2_prs_flow_find(struct mvpp2 *priv, int flow)
1716 struct mvpp2_prs_entry *pe;
1719 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
1722 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
1724 /* Go through the all entires with MVPP2_PRS_LU_FLOWS */
1725 for (tid = MVPP2_PRS_TCAM_SRAM_SIZE - 1; tid >= 0; tid--) {
1728 if (!priv->prs_shadow[tid].valid ||
1729 priv->prs_shadow[tid].lu != MVPP2_PRS_LU_FLOWS)
1733 mvpp2_prs_hw_read(priv, pe);
1734 bits = mvpp2_prs_sram_ai_get(pe);
1736 /* Sram store classification lookup ID in AI bits [5:0] */
1737 if ((bits & MVPP2_PRS_FLOW_ID_MASK) == flow)
1745 /* Return first free tcam index, seeking from start to end */
1746 static int mvpp2_prs_tcam_first_free(struct mvpp2 *priv, unsigned char start,
1754 if (end >= MVPP2_PRS_TCAM_SRAM_SIZE)
1755 end = MVPP2_PRS_TCAM_SRAM_SIZE - 1;
1757 for (tid = start; tid <= end; tid++) {
1758 if (!priv->prs_shadow[tid].valid)
1765 /* Enable/disable dropping all mac da's */
1766 static void mvpp2_prs_mac_drop_all_set(struct mvpp2 *priv, int port, bool add)
1768 struct mvpp2_prs_entry pe;
1770 if (priv->prs_shadow[MVPP2_PE_DROP_ALL].valid) {
1771 /* Entry exist - update port only */
1772 pe.index = MVPP2_PE_DROP_ALL;
1773 mvpp2_prs_hw_read(priv, &pe);
1775 /* Entry doesn't exist - create new */
1776 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1777 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1778 pe.index = MVPP2_PE_DROP_ALL;
1780 /* Non-promiscuous mode for all ports - DROP unknown packets */
1781 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
1782 MVPP2_PRS_RI_DROP_MASK);
1784 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1785 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1787 /* Update shadow table */
1788 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1790 /* Mask all ports */
1791 mvpp2_prs_tcam_port_map_set(&pe, 0);
1794 /* Update port mask */
1795 mvpp2_prs_tcam_port_set(&pe, port, add);
1797 mvpp2_prs_hw_write(priv, &pe);
1800 /* Set port to promiscuous mode */
1801 static void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, bool add)
1803 struct mvpp2_prs_entry pe;
1805 /* Promiscuous mode - Accept unknown packets */
1807 if (priv->prs_shadow[MVPP2_PE_MAC_PROMISCUOUS].valid) {
1808 /* Entry exist - update port only */
1809 pe.index = MVPP2_PE_MAC_PROMISCUOUS;
1810 mvpp2_prs_hw_read(priv, &pe);
1812 /* Entry doesn't exist - create new */
1813 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1814 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1815 pe.index = MVPP2_PE_MAC_PROMISCUOUS;
1817 /* Continue - set next lookup */
1818 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
1820 /* Set result info bits */
1821 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_UCAST,
1822 MVPP2_PRS_RI_L2_CAST_MASK);
1824 /* Shift to ethertype */
1825 mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
1826 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1828 /* Mask all ports */
1829 mvpp2_prs_tcam_port_map_set(&pe, 0);
1831 /* Update shadow table */
1832 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1835 /* Update port mask */
1836 mvpp2_prs_tcam_port_set(&pe, port, add);
1838 mvpp2_prs_hw_write(priv, &pe);
1841 /* Accept multicast */
1842 static void mvpp2_prs_mac_multi_set(struct mvpp2 *priv, int port, int index,
1845 struct mvpp2_prs_entry pe;
1846 unsigned char da_mc;
1848 /* Ethernet multicast address first byte is
1849 * 0x01 for IPv4 and 0x33 for IPv6
1851 da_mc = (index == MVPP2_PE_MAC_MC_ALL) ? 0x01 : 0x33;
1853 if (priv->prs_shadow[index].valid) {
1854 /* Entry exist - update port only */
1856 mvpp2_prs_hw_read(priv, &pe);
1858 /* Entry doesn't exist - create new */
1859 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1860 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1863 /* Continue - set next lookup */
1864 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
1866 /* Set result info bits */
1867 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_MCAST,
1868 MVPP2_PRS_RI_L2_CAST_MASK);
1870 /* Update tcam entry data first byte */
1871 mvpp2_prs_tcam_data_byte_set(&pe, 0, da_mc, 0xff);
1873 /* Shift to ethertype */
1874 mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
1875 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1877 /* Mask all ports */
1878 mvpp2_prs_tcam_port_map_set(&pe, 0);
1880 /* Update shadow table */
1881 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1884 /* Update port mask */
1885 mvpp2_prs_tcam_port_set(&pe, port, add);
1887 mvpp2_prs_hw_write(priv, &pe);
1890 /* Parser per-port initialization */
1891 static void mvpp2_prs_hw_port_init(struct mvpp2 *priv, int port, int lu_first,
1892 int lu_max, int offset)
1897 val = mvpp2_read(priv, MVPP2_PRS_INIT_LOOKUP_REG);
1898 val &= ~MVPP2_PRS_PORT_LU_MASK(port);
1899 val |= MVPP2_PRS_PORT_LU_VAL(port, lu_first);
1900 mvpp2_write(priv, MVPP2_PRS_INIT_LOOKUP_REG, val);
1902 /* Set maximum number of loops for packet received from port */
1903 val = mvpp2_read(priv, MVPP2_PRS_MAX_LOOP_REG(port));
1904 val &= ~MVPP2_PRS_MAX_LOOP_MASK(port);
1905 val |= MVPP2_PRS_MAX_LOOP_VAL(port, lu_max);
1906 mvpp2_write(priv, MVPP2_PRS_MAX_LOOP_REG(port), val);
1908 /* Set initial offset for packet header extraction for the first
1911 val = mvpp2_read(priv, MVPP2_PRS_INIT_OFFS_REG(port));
1912 val &= ~MVPP2_PRS_INIT_OFF_MASK(port);
1913 val |= MVPP2_PRS_INIT_OFF_VAL(port, offset);
1914 mvpp2_write(priv, MVPP2_PRS_INIT_OFFS_REG(port), val);
1917 /* Default flow entries initialization for all ports */
1918 static void mvpp2_prs_def_flow_init(struct mvpp2 *priv)
1920 struct mvpp2_prs_entry pe;
1923 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
1924 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1925 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1926 pe.index = MVPP2_PE_FIRST_DEFAULT_FLOW - port;
1928 /* Mask all ports */
1929 mvpp2_prs_tcam_port_map_set(&pe, 0);
1932 mvpp2_prs_sram_ai_update(&pe, port, MVPP2_PRS_FLOW_ID_MASK);
1933 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
1935 /* Update shadow table and hw entry */
1936 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_FLOWS);
1937 mvpp2_prs_hw_write(priv, &pe);
1941 /* Set default entry for Marvell Header field */
1942 static void mvpp2_prs_mh_init(struct mvpp2 *priv)
1944 struct mvpp2_prs_entry pe;
1946 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1948 pe.index = MVPP2_PE_MH_DEFAULT;
1949 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH);
1950 mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE,
1951 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1952 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_MAC);
1954 /* Unmask all ports */
1955 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1957 /* Update shadow table and hw entry */
1958 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH);
1959 mvpp2_prs_hw_write(priv, &pe);
1962 /* Set default entires (place holder) for promiscuous, non-promiscuous and
1963 * multicast MAC addresses
1965 static void mvpp2_prs_mac_init(struct mvpp2 *priv)
1967 struct mvpp2_prs_entry pe;
1969 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1971 /* Non-promiscuous mode for all ports - DROP unknown packets */
1972 pe.index = MVPP2_PE_MAC_NON_PROMISCUOUS;
1973 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1975 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
1976 MVPP2_PRS_RI_DROP_MASK);
1977 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1978 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1980 /* Unmask all ports */
1981 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1983 /* Update shadow table and hw entry */
1984 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1985 mvpp2_prs_hw_write(priv, &pe);
1987 /* place holders only - no ports */
1988 mvpp2_prs_mac_drop_all_set(priv, 0, false);
1989 mvpp2_prs_mac_promisc_set(priv, 0, false);
1990 mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_ALL, 0, false);
1991 mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_IP6, 0, false);
1994 /* Match basic ethertypes */
1995 static int mvpp2_prs_etype_init(struct mvpp2 *priv)
1997 struct mvpp2_prs_entry pe;
2000 /* Ethertype: PPPoE */
2001 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2002 MVPP2_PE_LAST_FREE_TID);
2006 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2007 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2010 mvpp2_prs_match_etype(&pe, 0, PROT_PPP_SES);
2012 mvpp2_prs_sram_shift_set(&pe, MVPP2_PPPOE_HDR_SIZE,
2013 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2014 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
2015 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_PPPOE_MASK,
2016 MVPP2_PRS_RI_PPPOE_MASK);
2018 /* Update shadow table and hw entry */
2019 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2020 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2021 priv->prs_shadow[pe.index].finish = false;
2022 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_PPPOE_MASK,
2023 MVPP2_PRS_RI_PPPOE_MASK);
2024 mvpp2_prs_hw_write(priv, &pe);
2026 /* Ethertype: ARP */
2027 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2028 MVPP2_PE_LAST_FREE_TID);
2032 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2033 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2036 mvpp2_prs_match_etype(&pe, 0, PROT_ARP);
2038 /* Generate flow in the next iteration*/
2039 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
2040 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
2041 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_ARP,
2042 MVPP2_PRS_RI_L3_PROTO_MASK);
2044 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2046 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2048 /* Update shadow table and hw entry */
2049 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2050 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2051 priv->prs_shadow[pe.index].finish = true;
2052 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_ARP,
2053 MVPP2_PRS_RI_L3_PROTO_MASK);
2054 mvpp2_prs_hw_write(priv, &pe);
2056 /* Ethertype: LBTD */
2057 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2058 MVPP2_PE_LAST_FREE_TID);
2062 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2063 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2066 mvpp2_prs_match_etype(&pe, 0, MVPP2_IP_LBDT_TYPE);
2068 /* Generate flow in the next iteration*/
2069 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
2070 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
2071 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
2072 MVPP2_PRS_RI_UDF3_RX_SPECIAL,
2073 MVPP2_PRS_RI_CPU_CODE_MASK |
2074 MVPP2_PRS_RI_UDF3_MASK);
2076 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2078 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2080 /* Update shadow table and hw entry */
2081 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2082 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2083 priv->prs_shadow[pe.index].finish = true;
2084 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
2085 MVPP2_PRS_RI_UDF3_RX_SPECIAL,
2086 MVPP2_PRS_RI_CPU_CODE_MASK |
2087 MVPP2_PRS_RI_UDF3_MASK);
2088 mvpp2_prs_hw_write(priv, &pe);
2090 /* Ethertype: IPv4 without options */
2091 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2092 MVPP2_PE_LAST_FREE_TID);
2096 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2097 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2100 mvpp2_prs_match_etype(&pe, 0, PROT_IP);
2101 mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
2102 MVPP2_PRS_IPV4_HEAD | MVPP2_PRS_IPV4_IHL,
2103 MVPP2_PRS_IPV4_HEAD_MASK |
2104 MVPP2_PRS_IPV4_IHL_MASK);
2106 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
2107 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4,
2108 MVPP2_PRS_RI_L3_PROTO_MASK);
2109 /* Skip eth_type + 4 bytes of IP header */
2110 mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
2111 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2113 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2115 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2117 /* Update shadow table and hw entry */
2118 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2119 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2120 priv->prs_shadow[pe.index].finish = false;
2121 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4,
2122 MVPP2_PRS_RI_L3_PROTO_MASK);
2123 mvpp2_prs_hw_write(priv, &pe);
2125 /* Ethertype: IPv4 with options */
2126 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2127 MVPP2_PE_LAST_FREE_TID);
2133 /* Clear tcam data before updating */
2134 pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(MVPP2_ETH_TYPE_LEN)] = 0x0;
2135 pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(MVPP2_ETH_TYPE_LEN)] = 0x0;
2137 mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
2138 MVPP2_PRS_IPV4_HEAD,
2139 MVPP2_PRS_IPV4_HEAD_MASK);
2141 /* Clear ri before updating */
2142 pe.sram.word[MVPP2_PRS_SRAM_RI_WORD] = 0x0;
2143 pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
2144 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4_OPT,
2145 MVPP2_PRS_RI_L3_PROTO_MASK);
2147 /* Update shadow table and hw entry */
2148 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2149 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2150 priv->prs_shadow[pe.index].finish = false;
2151 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4_OPT,
2152 MVPP2_PRS_RI_L3_PROTO_MASK);
2153 mvpp2_prs_hw_write(priv, &pe);
2155 /* Ethertype: IPv6 without options */
2156 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2157 MVPP2_PE_LAST_FREE_TID);
2161 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2162 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2165 mvpp2_prs_match_etype(&pe, 0, PROT_IPV6);
2167 /* Skip DIP of IPV6 header */
2168 mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 +
2169 MVPP2_MAX_L3_ADDR_SIZE,
2170 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2171 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
2172 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6,
2173 MVPP2_PRS_RI_L3_PROTO_MASK);
2175 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2177 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2179 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2180 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2181 priv->prs_shadow[pe.index].finish = false;
2182 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP6,
2183 MVPP2_PRS_RI_L3_PROTO_MASK);
2184 mvpp2_prs_hw_write(priv, &pe);
2186 /* Default entry for MVPP2_PRS_LU_L2 - Unknown ethtype */
2187 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
2188 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
2189 pe.index = MVPP2_PE_ETH_TYPE_UN;
2191 /* Unmask all ports */
2192 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
2194 /* Generate flow in the next iteration*/
2195 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
2196 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
2197 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN,
2198 MVPP2_PRS_RI_L3_PROTO_MASK);
2199 /* Set L3 offset even it's unknown L3 */
2200 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
2202 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
2204 /* Update shadow table and hw entry */
2205 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
2206 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
2207 priv->prs_shadow[pe.index].finish = true;
2208 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_UN,
2209 MVPP2_PRS_RI_L3_PROTO_MASK);
2210 mvpp2_prs_hw_write(priv, &pe);
2215 /* Parser default initialization */
2216 static int mvpp2_prs_default_init(struct udevice *dev,
2221 /* Enable tcam table */
2222 mvpp2_write(priv, MVPP2_PRS_TCAM_CTRL_REG, MVPP2_PRS_TCAM_EN_MASK);
2224 /* Clear all tcam and sram entries */
2225 for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++) {
2226 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
2227 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
2228 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), 0);
2230 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, index);
2231 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
2232 mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), 0);
2235 /* Invalidate all tcam entries */
2236 for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++)
2237 mvpp2_prs_hw_inv(priv, index);
2239 priv->prs_shadow = devm_kcalloc(dev, MVPP2_PRS_TCAM_SRAM_SIZE,
2240 sizeof(struct mvpp2_prs_shadow),
2242 if (!priv->prs_shadow)
2245 /* Always start from lookup = 0 */
2246 for (index = 0; index < MVPP2_MAX_PORTS; index++)
2247 mvpp2_prs_hw_port_init(priv, index, MVPP2_PRS_LU_MH,
2248 MVPP2_PRS_PORT_LU_MAX, 0);
2250 mvpp2_prs_def_flow_init(priv);
2252 mvpp2_prs_mh_init(priv);
2254 mvpp2_prs_mac_init(priv);
2256 err = mvpp2_prs_etype_init(priv);
2263 /* Compare MAC DA with tcam entry data */
2264 static bool mvpp2_prs_mac_range_equals(struct mvpp2_prs_entry *pe,
2265 const u8 *da, unsigned char *mask)
2267 unsigned char tcam_byte, tcam_mask;
2270 for (index = 0; index < ETH_ALEN; index++) {
2271 mvpp2_prs_tcam_data_byte_get(pe, index, &tcam_byte, &tcam_mask);
2272 if (tcam_mask != mask[index])
2275 if ((tcam_mask & tcam_byte) != (da[index] & mask[index]))
2282 /* Find tcam entry with matched pair <MAC DA, port> */
2283 static struct mvpp2_prs_entry *
2284 mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da,
2285 unsigned char *mask, int udf_type)
2287 struct mvpp2_prs_entry *pe;
2290 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2293 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
2295 /* Go through the all entires with MVPP2_PRS_LU_MAC */
2296 for (tid = MVPP2_PE_FIRST_FREE_TID;
2297 tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
2298 unsigned int entry_pmap;
2300 if (!priv->prs_shadow[tid].valid ||
2301 (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) ||
2302 (priv->prs_shadow[tid].udf != udf_type))
2306 mvpp2_prs_hw_read(priv, pe);
2307 entry_pmap = mvpp2_prs_tcam_port_map_get(pe);
2309 if (mvpp2_prs_mac_range_equals(pe, da, mask) &&
2318 /* Update parser's mac da entry */
2319 static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
2320 const u8 *da, bool add)
2322 struct mvpp2_prs_entry *pe;
2323 unsigned int pmap, len, ri;
2324 unsigned char mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2327 /* Scan TCAM and see if entry with this <MAC DA, port> already exist */
2328 pe = mvpp2_prs_mac_da_range_find(priv, (1 << port), da, mask,
2329 MVPP2_PRS_UDF_MAC_DEF);
2336 /* Create new TCAM entry */
2337 /* Find first range mac entry*/
2338 for (tid = MVPP2_PE_FIRST_FREE_TID;
2339 tid <= MVPP2_PE_LAST_FREE_TID; tid++)
2340 if (priv->prs_shadow[tid].valid &&
2341 (priv->prs_shadow[tid].lu == MVPP2_PRS_LU_MAC) &&
2342 (priv->prs_shadow[tid].udf ==
2343 MVPP2_PRS_UDF_MAC_RANGE))
2346 /* Go through the all entries from first to last */
2347 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2352 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2355 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
2358 /* Mask all ports */
2359 mvpp2_prs_tcam_port_map_set(pe, 0);
2362 /* Update port mask */
2363 mvpp2_prs_tcam_port_set(pe, port, add);
2365 /* Invalidate the entry if no ports are left enabled */
2366 pmap = mvpp2_prs_tcam_port_map_get(pe);
2372 mvpp2_prs_hw_inv(priv, pe->index);
2373 priv->prs_shadow[pe->index].valid = false;
2378 /* Continue - set next lookup */
2379 mvpp2_prs_sram_next_lu_set(pe, MVPP2_PRS_LU_DSA);
2381 /* Set match on DA */
2384 mvpp2_prs_tcam_data_byte_set(pe, len, da[len], 0xff);
2386 /* Set result info bits */
2387 ri = MVPP2_PRS_RI_L2_UCAST | MVPP2_PRS_RI_MAC_ME_MASK;
2389 mvpp2_prs_sram_ri_update(pe, ri, MVPP2_PRS_RI_L2_CAST_MASK |
2390 MVPP2_PRS_RI_MAC_ME_MASK);
2391 mvpp2_prs_shadow_ri_set(priv, pe->index, ri, MVPP2_PRS_RI_L2_CAST_MASK |
2392 MVPP2_PRS_RI_MAC_ME_MASK);
2394 /* Shift to ethertype */
2395 mvpp2_prs_sram_shift_set(pe, 2 * ETH_ALEN,
2396 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2398 /* Update shadow table and hw entry */
2399 priv->prs_shadow[pe->index].udf = MVPP2_PRS_UDF_MAC_DEF;
2400 mvpp2_prs_shadow_set(priv, pe->index, MVPP2_PRS_LU_MAC);
2401 mvpp2_prs_hw_write(priv, pe);
2408 static int mvpp2_prs_update_mac_da(struct mvpp2_port *port, const u8 *da)
2412 /* Remove old parser entry */
2413 err = mvpp2_prs_mac_da_accept(port->priv, port->id, port->dev_addr,
2418 /* Add new parser entry */
2419 err = mvpp2_prs_mac_da_accept(port->priv, port->id, da, true);
2423 /* Set addr in the device */
2424 memcpy(port->dev_addr, da, ETH_ALEN);
2429 /* Set prs flow for the port */
2430 static int mvpp2_prs_def_flow(struct mvpp2_port *port)
2432 struct mvpp2_prs_entry *pe;
2435 pe = mvpp2_prs_flow_find(port->priv, port->id);
2437 /* Such entry not exist */
2439 /* Go through the all entires from last to first */
2440 tid = mvpp2_prs_tcam_first_free(port->priv,
2441 MVPP2_PE_LAST_FREE_TID,
2442 MVPP2_PE_FIRST_FREE_TID);
2446 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2450 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
2454 mvpp2_prs_sram_ai_update(pe, port->id, MVPP2_PRS_FLOW_ID_MASK);
2455 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
2457 /* Update shadow table */
2458 mvpp2_prs_shadow_set(port->priv, pe->index, MVPP2_PRS_LU_FLOWS);
2461 mvpp2_prs_tcam_port_map_set(pe, (1 << port->id));
2462 mvpp2_prs_hw_write(port->priv, pe);
2468 /* Classifier configuration routines */
2470 /* Update classification flow table registers */
2471 static void mvpp2_cls_flow_write(struct mvpp2 *priv,
2472 struct mvpp2_cls_flow_entry *fe)
2474 mvpp2_write(priv, MVPP2_CLS_FLOW_INDEX_REG, fe->index);
2475 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL0_REG, fe->data[0]);
2476 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL1_REG, fe->data[1]);
2477 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL2_REG, fe->data[2]);
2480 /* Update classification lookup table register */
2481 static void mvpp2_cls_lookup_write(struct mvpp2 *priv,
2482 struct mvpp2_cls_lookup_entry *le)
2486 val = (le->way << MVPP2_CLS_LKP_INDEX_WAY_OFFS) | le->lkpid;
2487 mvpp2_write(priv, MVPP2_CLS_LKP_INDEX_REG, val);
2488 mvpp2_write(priv, MVPP2_CLS_LKP_TBL_REG, le->data);
2491 /* Classifier default initialization */
2492 static void mvpp2_cls_init(struct mvpp2 *priv)
2494 struct mvpp2_cls_lookup_entry le;
2495 struct mvpp2_cls_flow_entry fe;
2498 /* Enable classifier */
2499 mvpp2_write(priv, MVPP2_CLS_MODE_REG, MVPP2_CLS_MODE_ACTIVE_MASK);
2501 /* Clear classifier flow table */
2502 memset(&fe.data, 0, MVPP2_CLS_FLOWS_TBL_DATA_WORDS);
2503 for (index = 0; index < MVPP2_CLS_FLOWS_TBL_SIZE; index++) {
2505 mvpp2_cls_flow_write(priv, &fe);
2508 /* Clear classifier lookup table */
2510 for (index = 0; index < MVPP2_CLS_LKP_TBL_SIZE; index++) {
2513 mvpp2_cls_lookup_write(priv, &le);
2516 mvpp2_cls_lookup_write(priv, &le);
2520 static void mvpp2_cls_port_config(struct mvpp2_port *port)
2522 struct mvpp2_cls_lookup_entry le;
2525 /* Set way for the port */
2526 val = mvpp2_read(port->priv, MVPP2_CLS_PORT_WAY_REG);
2527 val &= ~MVPP2_CLS_PORT_WAY_MASK(port->id);
2528 mvpp2_write(port->priv, MVPP2_CLS_PORT_WAY_REG, val);
2530 /* Pick the entry to be accessed in lookup ID decoding table
2531 * according to the way and lkpid.
2533 le.lkpid = port->id;
2537 /* Set initial CPU queue for receiving packets */
2538 le.data &= ~MVPP2_CLS_LKP_TBL_RXQ_MASK;
2539 le.data |= port->first_rxq;
2541 /* Disable classification engines */
2542 le.data &= ~MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK;
2544 /* Update lookup ID table entry */
2545 mvpp2_cls_lookup_write(port->priv, &le);
2548 /* Set CPU queue number for oversize packets */
2549 static void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port)
2553 mvpp2_write(port->priv, MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port->id),
2554 port->first_rxq & MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK);
2556 mvpp2_write(port->priv, MVPP2_CLS_SWFWD_P2HQ_REG(port->id),
2557 (port->first_rxq >> MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS));
2559 val = mvpp2_read(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG);
2560 val |= MVPP2_CLS_SWFWD_PCTRL_MASK(port->id);
2561 mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val);
2564 /* Buffer Manager configuration routines */
2567 static int mvpp2_bm_pool_create(struct udevice *dev,
2569 struct mvpp2_bm_pool *bm_pool, int size)
2573 /* Number of buffer pointers must be a multiple of 16, as per
2574 * hardware constraints
2576 if (!IS_ALIGNED(size, 16))
2579 bm_pool->virt_addr = buffer_loc.bm_pool[bm_pool->id];
2580 bm_pool->dma_addr = (dma_addr_t)buffer_loc.bm_pool[bm_pool->id];
2581 if (!bm_pool->virt_addr)
2584 if (!IS_ALIGNED((unsigned long)bm_pool->virt_addr,
2585 MVPP2_BM_POOL_PTR_ALIGN)) {
2586 dev_err(&pdev->dev, "BM pool %d is not %d bytes aligned\n",
2587 bm_pool->id, MVPP2_BM_POOL_PTR_ALIGN);
2591 mvpp2_write(priv, MVPP2_BM_POOL_BASE_REG(bm_pool->id),
2592 lower_32_bits(bm_pool->dma_addr));
2593 mvpp2_write(priv, MVPP2_BM_POOL_SIZE_REG(bm_pool->id), size);
2595 val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
2596 val |= MVPP2_BM_START_MASK;
2597 mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
2599 bm_pool->type = MVPP2_BM_FREE;
2600 bm_pool->size = size;
2601 bm_pool->pkt_size = 0;
2602 bm_pool->buf_num = 0;
2607 /* Set pool buffer size */
2608 static void mvpp2_bm_pool_bufsize_set(struct mvpp2 *priv,
2609 struct mvpp2_bm_pool *bm_pool,
2614 bm_pool->buf_size = buf_size;
2616 val = ALIGN(buf_size, 1 << MVPP2_POOL_BUF_SIZE_OFFSET);
2617 mvpp2_write(priv, MVPP2_POOL_BUF_SIZE_REG(bm_pool->id), val);
2620 /* Free all buffers from the pool */
2621 static void mvpp2_bm_bufs_free(struct udevice *dev, struct mvpp2 *priv,
2622 struct mvpp2_bm_pool *bm_pool)
2624 bm_pool->buf_num = 0;
2628 static int mvpp2_bm_pool_destroy(struct udevice *dev,
2630 struct mvpp2_bm_pool *bm_pool)
2634 mvpp2_bm_bufs_free(dev, priv, bm_pool);
2635 if (bm_pool->buf_num) {
2636 dev_err(dev, "cannot free all buffers in pool %d\n", bm_pool->id);
2640 val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
2641 val |= MVPP2_BM_STOP_MASK;
2642 mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
2647 static int mvpp2_bm_pools_init(struct udevice *dev,
2651 struct mvpp2_bm_pool *bm_pool;
2653 /* Create all pools with maximum size */
2654 size = MVPP2_BM_POOL_SIZE_MAX;
2655 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
2656 bm_pool = &priv->bm_pools[i];
2658 err = mvpp2_bm_pool_create(dev, priv, bm_pool, size);
2660 goto err_unroll_pools;
2661 mvpp2_bm_pool_bufsize_set(priv, bm_pool, 0);
2666 dev_err(&pdev->dev, "failed to create BM pool %d, size %d\n", i, size);
2667 for (i = i - 1; i >= 0; i--)
2668 mvpp2_bm_pool_destroy(dev, priv, &priv->bm_pools[i]);
2672 static int mvpp2_bm_init(struct udevice *dev, struct mvpp2 *priv)
2676 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
2677 /* Mask BM all interrupts */
2678 mvpp2_write(priv, MVPP2_BM_INTR_MASK_REG(i), 0);
2679 /* Clear BM cause register */
2680 mvpp2_write(priv, MVPP2_BM_INTR_CAUSE_REG(i), 0);
2683 /* Allocate and initialize BM pools */
2684 priv->bm_pools = devm_kcalloc(dev, MVPP2_BM_POOLS_NUM,
2685 sizeof(struct mvpp2_bm_pool), GFP_KERNEL);
2686 if (!priv->bm_pools)
2689 err = mvpp2_bm_pools_init(dev, priv);
2695 /* Attach long pool to rxq */
2696 static void mvpp2_rxq_long_pool_set(struct mvpp2_port *port,
2697 int lrxq, int long_pool)
2702 /* Get queue physical ID */
2703 prxq = port->rxqs[lrxq]->id;
2705 if (port->priv->hw_version == MVPP21)
2706 mask = MVPP21_RXQ_POOL_LONG_MASK;
2708 mask = MVPP22_RXQ_POOL_LONG_MASK;
2710 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
2712 val |= (long_pool << MVPP2_RXQ_POOL_LONG_OFFS) & mask;
2713 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
2716 /* Set pool number in a BM cookie */
2717 static inline u32 mvpp2_bm_cookie_pool_set(u32 cookie, int pool)
2721 bm = cookie & ~(0xFF << MVPP2_BM_COOKIE_POOL_OFFS);
2722 bm |= ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS);
2727 /* Get pool number from a BM cookie */
2728 static inline int mvpp2_bm_cookie_pool_get(unsigned long cookie)
2730 return (cookie >> MVPP2_BM_COOKIE_POOL_OFFS) & 0xFF;
2733 /* Release buffer to BM */
2734 static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
2735 dma_addr_t buf_dma_addr,
2736 unsigned long buf_phys_addr)
2738 if (port->priv->hw_version == MVPP22) {
2741 if (sizeof(dma_addr_t) == 8)
2742 val |= upper_32_bits(buf_dma_addr) &
2743 MVPP22_BM_ADDR_HIGH_PHYS_RLS_MASK;
2745 if (sizeof(phys_addr_t) == 8)
2746 val |= (upper_32_bits(buf_phys_addr)
2747 << MVPP22_BM_ADDR_HIGH_VIRT_RLS_SHIFT) &
2748 MVPP22_BM_ADDR_HIGH_VIRT_RLS_MASK;
2750 mvpp2_write(port->priv, MVPP22_BM_ADDR_HIGH_RLS_REG, val);
2753 /* MVPP2_BM_VIRT_RLS_REG is not interpreted by HW, and simply
2754 * returned in the "cookie" field of the RX
2755 * descriptor. Instead of storing the virtual address, we
2756 * store the physical address
2758 mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_phys_addr);
2759 mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_dma_addr);
2762 /* Refill BM pool */
2763 static void mvpp2_pool_refill(struct mvpp2_port *port, u32 bm,
2764 dma_addr_t dma_addr,
2765 phys_addr_t phys_addr)
2767 int pool = mvpp2_bm_cookie_pool_get(bm);
2769 mvpp2_bm_pool_put(port, pool, dma_addr, phys_addr);
2772 /* Allocate buffers for the pool */
2773 static int mvpp2_bm_bufs_add(struct mvpp2_port *port,
2774 struct mvpp2_bm_pool *bm_pool, int buf_num)
2779 (buf_num + bm_pool->buf_num > bm_pool->size)) {
2780 netdev_err(port->dev,
2781 "cannot allocate %d buffers for pool %d\n",
2782 buf_num, bm_pool->id);
2786 for (i = 0; i < buf_num; i++) {
2787 mvpp2_bm_pool_put(port, bm_pool->id,
2788 (dma_addr_t)buffer_loc.rx_buffer[i],
2789 (unsigned long)buffer_loc.rx_buffer[i]);
2793 /* Update BM driver with number of buffers added to pool */
2794 bm_pool->buf_num += i;
2795 bm_pool->in_use_thresh = bm_pool->buf_num / 4;
2800 /* Notify the driver that BM pool is being used as specific type and return the
2801 * pool pointer on success
2803 static struct mvpp2_bm_pool *
2804 mvpp2_bm_pool_use(struct mvpp2_port *port, int pool, enum mvpp2_bm_type type,
2807 struct mvpp2_bm_pool *new_pool = &port->priv->bm_pools[pool];
2810 if (new_pool->type != MVPP2_BM_FREE && new_pool->type != type) {
2811 netdev_err(port->dev, "mixing pool types is forbidden\n");
2815 if (new_pool->type == MVPP2_BM_FREE)
2816 new_pool->type = type;
2818 /* Allocate buffers in case BM pool is used as long pool, but packet
2819 * size doesn't match MTU or BM pool hasn't being used yet
2821 if (((type == MVPP2_BM_SWF_LONG) && (pkt_size > new_pool->pkt_size)) ||
2822 (new_pool->pkt_size == 0)) {
2825 /* Set default buffer number or free all the buffers in case
2826 * the pool is not empty
2828 pkts_num = new_pool->buf_num;
2830 pkts_num = type == MVPP2_BM_SWF_LONG ?
2831 MVPP2_BM_LONG_BUF_NUM :
2832 MVPP2_BM_SHORT_BUF_NUM;
2834 mvpp2_bm_bufs_free(NULL,
2835 port->priv, new_pool);
2837 new_pool->pkt_size = pkt_size;
2839 /* Allocate buffers for this pool */
2840 num = mvpp2_bm_bufs_add(port, new_pool, pkts_num);
2841 if (num != pkts_num) {
2842 dev_err(dev, "pool %d: %d of %d allocated\n",
2843 new_pool->id, num, pkts_num);
2848 mvpp2_bm_pool_bufsize_set(port->priv, new_pool,
2849 MVPP2_RX_BUF_SIZE(new_pool->pkt_size));
2854 /* Initialize pools for swf */
2855 static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port)
2859 if (!port->pool_long) {
2861 mvpp2_bm_pool_use(port, MVPP2_BM_SWF_LONG_POOL(port->id),
2864 if (!port->pool_long)
2867 port->pool_long->port_map |= (1 << port->id);
2869 for (rxq = 0; rxq < rxq_number; rxq++)
2870 mvpp2_rxq_long_pool_set(port, rxq, port->pool_long->id);
2876 /* Port configuration routines */
2878 static void mvpp2_port_mii_set(struct mvpp2_port *port)
2882 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
2884 switch (port->phy_interface) {
2885 case PHY_INTERFACE_MODE_SGMII:
2886 val |= MVPP2_GMAC_INBAND_AN_MASK;
2888 case PHY_INTERFACE_MODE_RGMII:
2889 val |= MVPP2_GMAC_PORT_RGMII_MASK;
2891 val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
2894 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
2897 static void mvpp2_port_fc_adv_enable(struct mvpp2_port *port)
2901 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
2902 val |= MVPP2_GMAC_FC_ADV_EN;
2903 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
2906 static void mvpp2_port_enable(struct mvpp2_port *port)
2910 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2911 val |= MVPP2_GMAC_PORT_EN_MASK;
2912 val |= MVPP2_GMAC_MIB_CNTR_EN_MASK;
2913 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2916 static void mvpp2_port_disable(struct mvpp2_port *port)
2920 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2921 val &= ~(MVPP2_GMAC_PORT_EN_MASK);
2922 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2925 /* Set IEEE 802.3x Flow Control Xon Packet Transmission Mode */
2926 static void mvpp2_port_periodic_xon_disable(struct mvpp2_port *port)
2930 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG) &
2931 ~MVPP2_GMAC_PERIODIC_XON_EN_MASK;
2932 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
2935 /* Configure loopback port */
2936 static void mvpp2_port_loopback_set(struct mvpp2_port *port)
2940 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
2942 if (port->speed == 1000)
2943 val |= MVPP2_GMAC_GMII_LB_EN_MASK;
2945 val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
2947 if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
2948 val |= MVPP2_GMAC_PCS_LB_EN_MASK;
2950 val &= ~MVPP2_GMAC_PCS_LB_EN_MASK;
2952 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
2955 static void mvpp2_port_reset(struct mvpp2_port *port)
2959 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
2960 ~MVPP2_GMAC_PORT_RESET_MASK;
2961 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
2963 while (readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
2964 MVPP2_GMAC_PORT_RESET_MASK)
2968 /* Change maximum receive size of the port */
2969 static inline void mvpp2_gmac_max_rx_size_set(struct mvpp2_port *port)
2973 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2974 val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK;
2975 val |= (((port->pkt_size - MVPP2_MH_SIZE) / 2) <<
2976 MVPP2_GMAC_MAX_RX_SIZE_OFFS);
2977 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2980 /* PPv2.2 GoP/GMAC config */
2982 /* Set the MAC to reset or exit from reset */
2983 static int gop_gmac_reset(struct mvpp2_port *port, int reset)
2987 /* read - modify - write */
2988 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
2990 val |= MVPP2_GMAC_PORT_RESET_MASK;
2992 val &= ~MVPP2_GMAC_PORT_RESET_MASK;
2993 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3001 * Configure port to working with Gig PCS or don't.
3003 static int gop_gpcs_mode_cfg(struct mvpp2_port *port, int en)
3007 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3009 val |= MVPP2_GMAC_PCS_ENABLE_MASK;
3011 val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
3012 /* enable / disable PCS on this port */
3013 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3018 static int gop_bypass_clk_cfg(struct mvpp2_port *port, int en)
3022 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3024 val |= MVPP2_GMAC_CLK_125_BYPS_EN_MASK;
3026 val &= ~MVPP2_GMAC_CLK_125_BYPS_EN_MASK;
3027 /* enable / disable PCS on this port */
3028 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3033 static void gop_gmac_sgmii2_5_cfg(struct mvpp2_port *port)
3038 * Configure minimal level of the Tx FIFO before the lower part
3039 * starts to read a packet
3041 thresh = MVPP2_SGMII2_5_TX_FIFO_MIN_TH;
3042 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3043 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
3044 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(thresh);
3045 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3047 /* Disable bypass of sync module */
3048 val = readl(port->base + MVPP2_GMAC_CTRL_4_REG);
3049 val |= MVPP2_GMAC_CTRL4_SYNC_BYPASS_MASK;
3050 /* configure DP clock select according to mode */
3051 val |= MVPP2_GMAC_CTRL4_DP_CLK_SEL_MASK;
3052 /* configure QSGMII bypass according to mode */
3053 val |= MVPP2_GMAC_CTRL4_QSGMII_BYPASS_ACTIVE_MASK;
3054 writel(val, port->base + MVPP2_GMAC_CTRL_4_REG);
3056 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3057 val |= MVPP2_GMAC_PORT_DIS_PADING_MASK;
3058 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3060 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
3062 * Configure GIG MAC to 1000Base-X mode connected to a fiber
3065 val |= MVPP2_GMAC_PORT_TYPE_MASK;
3066 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
3068 /* configure AN 0x9268 */
3069 val = MVPP2_GMAC_EN_PCS_AN |
3070 MVPP2_GMAC_AN_BYPASS_EN |
3071 MVPP2_GMAC_CONFIG_MII_SPEED |
3072 MVPP2_GMAC_CONFIG_GMII_SPEED |
3073 MVPP2_GMAC_FC_ADV_EN |
3074 MVPP2_GMAC_CONFIG_FULL_DUPLEX |
3075 MVPP2_GMAC_CHOOSE_SAMPLE_TX_CONFIG;
3076 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3079 static void gop_gmac_sgmii_cfg(struct mvpp2_port *port)
3084 * Configure minimal level of the Tx FIFO before the lower part
3085 * starts to read a packet
3087 thresh = MVPP2_SGMII_TX_FIFO_MIN_TH;
3088 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3089 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
3090 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(thresh);
3091 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3093 /* Disable bypass of sync module */
3094 val = readl(port->base + MVPP2_GMAC_CTRL_4_REG);
3095 val |= MVPP2_GMAC_CTRL4_SYNC_BYPASS_MASK;
3096 /* configure DP clock select according to mode */
3097 val &= ~MVPP2_GMAC_CTRL4_DP_CLK_SEL_MASK;
3098 /* configure QSGMII bypass according to mode */
3099 val |= MVPP2_GMAC_CTRL4_QSGMII_BYPASS_ACTIVE_MASK;
3100 writel(val, port->base + MVPP2_GMAC_CTRL_4_REG);
3102 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3103 val |= MVPP2_GMAC_PORT_DIS_PADING_MASK;
3104 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3106 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
3107 /* configure GIG MAC to SGMII mode */
3108 val &= ~MVPP2_GMAC_PORT_TYPE_MASK;
3109 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
3112 val = MVPP2_GMAC_EN_PCS_AN |
3113 MVPP2_GMAC_AN_BYPASS_EN |
3114 MVPP2_GMAC_AN_SPEED_EN |
3115 MVPP2_GMAC_EN_FC_AN |
3116 MVPP2_GMAC_AN_DUPLEX_EN |
3117 MVPP2_GMAC_CHOOSE_SAMPLE_TX_CONFIG;
3118 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3121 static void gop_gmac_rgmii_cfg(struct mvpp2_port *port)
3126 * Configure minimal level of the Tx FIFO before the lower part
3127 * starts to read a packet
3129 thresh = MVPP2_RGMII_TX_FIFO_MIN_TH;
3130 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3131 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
3132 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(thresh);
3133 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3135 /* Disable bypass of sync module */
3136 val = readl(port->base + MVPP2_GMAC_CTRL_4_REG);
3137 val |= MVPP2_GMAC_CTRL4_SYNC_BYPASS_MASK;
3138 /* configure DP clock select according to mode */
3139 val &= ~MVPP2_GMAC_CTRL4_DP_CLK_SEL_MASK;
3140 val |= MVPP2_GMAC_CTRL4_QSGMII_BYPASS_ACTIVE_MASK;
3141 val |= MVPP2_GMAC_CTRL4_EXT_PIN_GMII_SEL_MASK;
3142 writel(val, port->base + MVPP2_GMAC_CTRL_4_REG);
3144 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3145 val &= ~MVPP2_GMAC_PORT_DIS_PADING_MASK;
3146 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3148 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
3149 /* configure GIG MAC to SGMII mode */
3150 val &= ~MVPP2_GMAC_PORT_TYPE_MASK;
3151 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
3153 /* configure AN 0xb8e8 */
3154 val = MVPP2_GMAC_AN_BYPASS_EN |
3155 MVPP2_GMAC_AN_SPEED_EN |
3156 MVPP2_GMAC_EN_FC_AN |
3157 MVPP2_GMAC_AN_DUPLEX_EN |
3158 MVPP2_GMAC_CHOOSE_SAMPLE_TX_CONFIG;
3159 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3162 /* Set the internal mux's to the required MAC in the GOP */
3163 static int gop_gmac_mode_cfg(struct mvpp2_port *port)
3167 /* Set TX FIFO thresholds */
3168 switch (port->phy_interface) {
3169 case PHY_INTERFACE_MODE_SGMII:
3170 if (port->phy_speed == 2500)
3171 gop_gmac_sgmii2_5_cfg(port);
3173 gop_gmac_sgmii_cfg(port);
3176 case PHY_INTERFACE_MODE_RGMII:
3177 case PHY_INTERFACE_MODE_RGMII_ID:
3178 gop_gmac_rgmii_cfg(port);
3185 /* Jumbo frame support - 0x1400*2= 0x2800 bytes */
3186 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
3187 val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK;
3188 val |= 0x1400 << MVPP2_GMAC_MAX_RX_SIZE_OFFS;
3189 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
3191 /* PeriodicXonEn disable */
3192 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
3193 val &= ~MVPP2_GMAC_PERIODIC_XON_EN_MASK;
3194 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
3199 static void gop_xlg_2_gig_mac_cfg(struct mvpp2_port *port)
3203 /* relevant only for MAC0 (XLG0 and GMAC0) */
3204 if (port->gop_id > 0)
3207 /* configure 1Gig MAC mode */
3208 val = readl(port->base + MVPP22_XLG_CTRL3_REG);
3209 val &= ~MVPP22_XLG_CTRL3_MACMODESELECT_MASK;
3210 val |= MVPP22_XLG_CTRL3_MACMODESELECT_GMAC;
3211 writel(val, port->base + MVPP22_XLG_CTRL3_REG);
3214 static int gop_gpcs_reset(struct mvpp2_port *port, int reset)
3218 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
3220 val &= ~MVPP2_GMAC_SGMII_MODE_MASK;
3222 val |= MVPP2_GMAC_SGMII_MODE_MASK;
3223 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
3228 /* Set the internal mux's to the required PCS in the PI */
3229 static int gop_xpcs_mode(struct mvpp2_port *port, int num_of_lanes)
3234 switch (num_of_lanes) {
3248 /* configure XG MAC mode */
3249 val = readl(port->priv->xpcs_base + MVPP22_XPCS_GLOBAL_CFG_0_REG);
3250 val &= ~MVPP22_XPCS_PCSMODE_OFFS;
3251 val &= ~MVPP22_XPCS_LANEACTIVE_MASK;
3252 val |= (2 * lane) << MVPP22_XPCS_LANEACTIVE_OFFS;
3253 writel(val, port->priv->xpcs_base + MVPP22_XPCS_GLOBAL_CFG_0_REG);
3258 static int gop_mpcs_mode(struct mvpp2_port *port)
3262 /* configure PCS40G COMMON CONTROL */
3263 val = readl(port->priv->mpcs_base + PCS40G_COMMON_CONTROL);
3264 val &= ~FORWARD_ERROR_CORRECTION_MASK;
3265 writel(val, port->priv->mpcs_base + PCS40G_COMMON_CONTROL);
3267 /* configure PCS CLOCK RESET */
3268 val = readl(port->priv->mpcs_base + PCS_CLOCK_RESET);
3269 val &= ~CLK_DIVISION_RATIO_MASK;
3270 val |= 1 << CLK_DIVISION_RATIO_OFFS;
3271 writel(val, port->priv->mpcs_base + PCS_CLOCK_RESET);
3273 val &= ~CLK_DIV_PHASE_SET_MASK;
3274 val |= MAC_CLK_RESET_MASK;
3275 val |= RX_SD_CLK_RESET_MASK;
3276 val |= TX_SD_CLK_RESET_MASK;
3277 writel(val, port->priv->mpcs_base + PCS_CLOCK_RESET);
3282 /* Set the internal mux's to the required MAC in the GOP */
3283 static int gop_xlg_mac_mode_cfg(struct mvpp2_port *port, int num_of_act_lanes)
3287 /* configure 10G MAC mode */
3288 val = readl(port->base + MVPP22_XLG_CTRL0_REG);
3289 val |= MVPP22_XLG_RX_FC_EN;
3290 writel(val, port->base + MVPP22_XLG_CTRL0_REG);
3292 val = readl(port->base + MVPP22_XLG_CTRL3_REG);
3293 val &= ~MVPP22_XLG_CTRL3_MACMODESELECT_MASK;
3294 val |= MVPP22_XLG_CTRL3_MACMODESELECT_10GMAC;
3295 writel(val, port->base + MVPP22_XLG_CTRL3_REG);
3297 /* read - modify - write */
3298 val = readl(port->base + MVPP22_XLG_CTRL4_REG);
3299 val &= ~MVPP22_XLG_MODE_DMA_1G;
3300 val |= MVPP22_XLG_FORWARD_PFC_EN;
3301 val |= MVPP22_XLG_FORWARD_802_3X_FC_EN;
3302 val &= ~MVPP22_XLG_EN_IDLE_CHECK_FOR_LINK;
3303 writel(val, port->base + MVPP22_XLG_CTRL4_REG);
3305 /* Jumbo frame support: 0x1400 * 2 = 0x2800 bytes */
3306 val = readl(port->base + MVPP22_XLG_CTRL1_REG);
3307 val &= ~MVPP22_XLG_MAX_RX_SIZE_MASK;
3308 val |= 0x1400 << MVPP22_XLG_MAX_RX_SIZE_OFFS;
3309 writel(val, port->base + MVPP22_XLG_CTRL1_REG);
3311 /* unmask link change interrupt */
3312 val = readl(port->base + MVPP22_XLG_INTERRUPT_MASK_REG);
3313 val |= MVPP22_XLG_INTERRUPT_LINK_CHANGE;
3314 val |= 1; /* unmask summary bit */
3315 writel(val, port->base + MVPP22_XLG_INTERRUPT_MASK_REG);
3320 /* Set PCS to reset or exit from reset */
3321 static int gop_xpcs_reset(struct mvpp2_port *port, int reset)
3325 /* read - modify - write */
3326 val = readl(port->priv->xpcs_base + MVPP22_XPCS_GLOBAL_CFG_0_REG);
3328 val &= ~MVPP22_XPCS_PCSRESET;
3330 val |= MVPP22_XPCS_PCSRESET;
3331 writel(val, port->priv->xpcs_base + MVPP22_XPCS_GLOBAL_CFG_0_REG);
3336 /* Set the MAC to reset or exit from reset */
3337 static int gop_xlg_mac_reset(struct mvpp2_port *port, int reset)
3341 /* read - modify - write */
3342 val = readl(port->base + MVPP22_XLG_CTRL0_REG);
3344 val &= ~MVPP22_XLG_MAC_RESETN;
3346 val |= MVPP22_XLG_MAC_RESETN;
3347 writel(val, port->base + MVPP22_XLG_CTRL0_REG);
3355 * Init physical port. Configures the port mode and all it's elements
3357 * Does not verify that the selected mode/port number is valid at the
3360 static int gop_port_init(struct mvpp2_port *port)
3362 int mac_num = port->gop_id;
3363 int num_of_act_lanes;
3365 if (mac_num >= MVPP22_GOP_MAC_NUM) {
3366 netdev_err(NULL, "%s: illegal port number %d", __func__,
3371 switch (port->phy_interface) {
3372 case PHY_INTERFACE_MODE_RGMII:
3373 case PHY_INTERFACE_MODE_RGMII_ID:
3374 gop_gmac_reset(port, 1);
3377 gop_gpcs_mode_cfg(port, 0);
3378 gop_bypass_clk_cfg(port, 1);
3381 gop_gmac_mode_cfg(port);
3383 gop_gpcs_reset(port, 0);
3386 gop_gmac_reset(port, 0);
3389 case PHY_INTERFACE_MODE_SGMII:
3391 gop_gpcs_mode_cfg(port, 1);
3394 gop_gmac_mode_cfg(port);
3395 /* select proper Mac mode */
3396 gop_xlg_2_gig_mac_cfg(port);
3399 gop_gpcs_reset(port, 0);
3401 gop_gmac_reset(port, 0);
3404 case PHY_INTERFACE_MODE_SFI:
3405 num_of_act_lanes = 2;
3408 gop_xpcs_mode(port, num_of_act_lanes);
3409 gop_mpcs_mode(port);
3411 gop_xlg_mac_mode_cfg(port, num_of_act_lanes);
3414 gop_xpcs_reset(port, 0);
3417 gop_xlg_mac_reset(port, 0);
3421 netdev_err(NULL, "%s: Requested port mode (%d) not supported\n",
3422 __func__, port->phy_interface);
3429 static void gop_xlg_mac_port_enable(struct mvpp2_port *port, int enable)
3433 val = readl(port->base + MVPP22_XLG_CTRL0_REG);
3435 /* Enable port and MIB counters update */
3436 val |= MVPP22_XLG_PORT_EN;
3437 val &= ~MVPP22_XLG_MIBCNT_DIS;
3440 val &= ~MVPP22_XLG_PORT_EN;
3442 writel(val, port->base + MVPP22_XLG_CTRL0_REG);
3445 static void gop_port_enable(struct mvpp2_port *port, int enable)
3447 switch (port->phy_interface) {
3448 case PHY_INTERFACE_MODE_RGMII:
3449 case PHY_INTERFACE_MODE_RGMII_ID:
3450 case PHY_INTERFACE_MODE_SGMII:
3452 mvpp2_port_enable(port);
3454 mvpp2_port_disable(port);
3457 case PHY_INTERFACE_MODE_SFI:
3458 gop_xlg_mac_port_enable(port, enable);
3462 netdev_err(NULL, "%s: Wrong port mode (%d)\n", __func__,
3463 port->phy_interface);
3468 /* RFU1 functions */
3469 static inline u32 gop_rfu1_read(struct mvpp2 *priv, u32 offset)
3471 return readl(priv->rfu1_base + offset);
3474 static inline void gop_rfu1_write(struct mvpp2 *priv, u32 offset, u32 data)
3476 writel(data, priv->rfu1_base + offset);
3479 static u32 mvpp2_netc_cfg_create(int gop_id, phy_interface_t phy_type)
3484 if (phy_type == PHY_INTERFACE_MODE_SGMII)
3485 val |= MV_NETC_GE_MAC2_SGMII;
3489 if (phy_type == PHY_INTERFACE_MODE_SGMII)
3490 val |= MV_NETC_GE_MAC3_SGMII;
3491 else if (phy_type == PHY_INTERFACE_MODE_RGMII ||
3492 phy_type == PHY_INTERFACE_MODE_RGMII_ID)
3493 val |= MV_NETC_GE_MAC3_RGMII;
3499 static void gop_netc_active_port(struct mvpp2 *priv, int gop_id, u32 val)
3503 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_1_REG);
3504 reg &= ~(NETC_PORTS_ACTIVE_MASK(gop_id));
3506 val <<= NETC_PORTS_ACTIVE_OFFSET(gop_id);
3507 val &= NETC_PORTS_ACTIVE_MASK(gop_id);
3511 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_1_REG, reg);
3514 static void gop_netc_mii_mode(struct mvpp2 *priv, int gop_id, u32 val)
3518 reg = gop_rfu1_read(priv, NETCOMP_CONTROL_0_REG);
3519 reg &= ~NETC_GBE_PORT1_MII_MODE_MASK;
3521 val <<= NETC_GBE_PORT1_MII_MODE_OFFS;
3522 val &= NETC_GBE_PORT1_MII_MODE_MASK;
3526 gop_rfu1_write(priv, NETCOMP_CONTROL_0_REG, reg);
3529 static void gop_netc_gop_reset(struct mvpp2 *priv, u32 val)
3533 reg = gop_rfu1_read(priv, GOP_SOFT_RESET_1_REG);
3534 reg &= ~NETC_GOP_SOFT_RESET_MASK;
3536 val <<= NETC_GOP_SOFT_RESET_OFFS;
3537 val &= NETC_GOP_SOFT_RESET_MASK;
3541 gop_rfu1_write(priv, GOP_SOFT_RESET_1_REG, reg);
3544 static void gop_netc_gop_clock_logic_set(struct mvpp2 *priv, u32 val)
3548 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_0_REG);
3549 reg &= ~NETC_CLK_DIV_PHASE_MASK;
3551 val <<= NETC_CLK_DIV_PHASE_OFFS;
3552 val &= NETC_CLK_DIV_PHASE_MASK;
3556 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_0_REG, reg);
3559 static void gop_netc_port_rf_reset(struct mvpp2 *priv, int gop_id, u32 val)
3563 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_1_REG);
3564 reg &= ~(NETC_PORT_GIG_RF_RESET_MASK(gop_id));
3566 val <<= NETC_PORT_GIG_RF_RESET_OFFS(gop_id);
3567 val &= NETC_PORT_GIG_RF_RESET_MASK(gop_id);
3571 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_1_REG, reg);
3574 static void gop_netc_gbe_sgmii_mode_select(struct mvpp2 *priv, int gop_id,
3577 u32 reg, mask, offset;
3580 mask = NETC_GBE_PORT0_SGMII_MODE_MASK;
3581 offset = NETC_GBE_PORT0_SGMII_MODE_OFFS;
3583 mask = NETC_GBE_PORT1_SGMII_MODE_MASK;
3584 offset = NETC_GBE_PORT1_SGMII_MODE_OFFS;
3586 reg = gop_rfu1_read(priv, NETCOMP_CONTROL_0_REG);
3594 gop_rfu1_write(priv, NETCOMP_CONTROL_0_REG, reg);
3597 static void gop_netc_bus_width_select(struct mvpp2 *priv, u32 val)
3601 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_0_REG);
3602 reg &= ~NETC_BUS_WIDTH_SELECT_MASK;
3604 val <<= NETC_BUS_WIDTH_SELECT_OFFS;
3605 val &= NETC_BUS_WIDTH_SELECT_MASK;
3609 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_0_REG, reg);
3612 static void gop_netc_sample_stages_timing(struct mvpp2 *priv, u32 val)
3616 reg = gop_rfu1_read(priv, NETCOMP_PORTS_CONTROL_0_REG);
3617 reg &= ~NETC_GIG_RX_DATA_SAMPLE_MASK;
3619 val <<= NETC_GIG_RX_DATA_SAMPLE_OFFS;
3620 val &= NETC_GIG_RX_DATA_SAMPLE_MASK;
3624 gop_rfu1_write(priv, NETCOMP_PORTS_CONTROL_0_REG, reg);
3627 static void gop_netc_mac_to_xgmii(struct mvpp2 *priv, int gop_id,
3628 enum mv_netc_phase phase)
3631 case MV_NETC_FIRST_PHASE:
3632 /* Set Bus Width to HB mode = 1 */
3633 gop_netc_bus_width_select(priv, 1);
3634 /* Select RGMII mode */
3635 gop_netc_gbe_sgmii_mode_select(priv, gop_id, MV_NETC_GBE_XMII);
3638 case MV_NETC_SECOND_PHASE:
3639 /* De-assert the relevant port HB reset */
3640 gop_netc_port_rf_reset(priv, gop_id, 1);
3645 static void gop_netc_mac_to_sgmii(struct mvpp2 *priv, int gop_id,
3646 enum mv_netc_phase phase)
3649 case MV_NETC_FIRST_PHASE:
3650 /* Set Bus Width to HB mode = 1 */
3651 gop_netc_bus_width_select(priv, 1);
3652 /* Select SGMII mode */
3654 gop_netc_gbe_sgmii_mode_select(priv, gop_id,
3658 /* Configure the sample stages */
3659 gop_netc_sample_stages_timing(priv, 0);
3660 /* Configure the ComPhy Selector */
3661 /* gop_netc_com_phy_selector_config(netComplex); */
3664 case MV_NETC_SECOND_PHASE:
3665 /* De-assert the relevant port HB reset */
3666 gop_netc_port_rf_reset(priv, gop_id, 1);
3671 static int gop_netc_init(struct mvpp2 *priv, enum mv_netc_phase phase)
3673 u32 c = priv->netc_config;
3675 if (c & MV_NETC_GE_MAC2_SGMII)
3676 gop_netc_mac_to_sgmii(priv, 2, phase);
3678 gop_netc_mac_to_xgmii(priv, 2, phase);
3680 if (c & MV_NETC_GE_MAC3_SGMII) {
3681 gop_netc_mac_to_sgmii(priv, 3, phase);
3683 gop_netc_mac_to_xgmii(priv, 3, phase);
3684 if (c & MV_NETC_GE_MAC3_RGMII)
3685 gop_netc_mii_mode(priv, 3, MV_NETC_GBE_RGMII);
3687 gop_netc_mii_mode(priv, 3, MV_NETC_GBE_MII);
3690 /* Activate gop ports 0, 2, 3 */
3691 gop_netc_active_port(priv, 0, 1);
3692 gop_netc_active_port(priv, 2, 1);
3693 gop_netc_active_port(priv, 3, 1);
3695 if (phase == MV_NETC_SECOND_PHASE) {
3696 /* Enable the GOP internal clock logic */
3697 gop_netc_gop_clock_logic_set(priv, 1);
3698 /* De-assert GOP unit reset */
3699 gop_netc_gop_reset(priv, 1);
3705 /* Set defaults to the MVPP2 port */
3706 static void mvpp2_defaults_set(struct mvpp2_port *port)
3708 int tx_port_num, val, queue, ptxq, lrxq;
3710 if (port->priv->hw_version == MVPP21) {
3711 /* Configure port to loopback if needed */
3712 if (port->flags & MVPP2_F_LOOPBACK)
3713 mvpp2_port_loopback_set(port);
3715 /* Update TX FIFO MIN Threshold */
3716 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3717 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
3718 /* Min. TX threshold must be less than minimal packet length */
3719 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2);
3720 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
3723 /* Disable Legacy WRR, Disable EJP, Release from reset */
3724 tx_port_num = mvpp2_egress_port(port);
3725 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG,
3727 mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0);
3729 /* Close bandwidth for all queues */
3730 for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) {
3731 ptxq = mvpp2_txq_phys(port->id, queue);
3732 mvpp2_write(port->priv,
3733 MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(ptxq), 0);
3736 /* Set refill period to 1 usec, refill tokens
3737 * and bucket size to maximum
3739 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PERIOD_REG, 0xc8);
3740 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_REFILL_REG);
3741 val &= ~MVPP2_TXP_REFILL_PERIOD_ALL_MASK;
3742 val |= MVPP2_TXP_REFILL_PERIOD_MASK(1);
3743 val |= MVPP2_TXP_REFILL_TOKENS_ALL_MASK;
3744 mvpp2_write(port->priv, MVPP2_TXP_SCHED_REFILL_REG, val);
3745 val = MVPP2_TXP_TOKEN_SIZE_MAX;
3746 mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
3748 /* Set MaximumLowLatencyPacketSize value to 256 */
3749 mvpp2_write(port->priv, MVPP2_RX_CTRL_REG(port->id),
3750 MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK |
3751 MVPP2_RX_LOW_LATENCY_PKT_SIZE(256));
3753 /* Enable Rx cache snoop */
3754 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
3755 queue = port->rxqs[lrxq]->id;
3756 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
3757 val |= MVPP2_SNOOP_PKT_SIZE_MASK |
3758 MVPP2_SNOOP_BUF_HDR_MASK;
3759 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
3763 /* Enable/disable receiving packets */
3764 static void mvpp2_ingress_enable(struct mvpp2_port *port)
3769 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
3770 queue = port->rxqs[lrxq]->id;
3771 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
3772 val &= ~MVPP2_RXQ_DISABLE_MASK;
3773 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
3777 static void mvpp2_ingress_disable(struct mvpp2_port *port)
3782 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
3783 queue = port->rxqs[lrxq]->id;
3784 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
3785 val |= MVPP2_RXQ_DISABLE_MASK;
3786 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
3790 /* Enable transmit via physical egress queue
3791 * - HW starts take descriptors from DRAM
3793 static void mvpp2_egress_enable(struct mvpp2_port *port)
3797 int tx_port_num = mvpp2_egress_port(port);
3799 /* Enable all initialized TXs. */
3801 for (queue = 0; queue < txq_number; queue++) {
3802 struct mvpp2_tx_queue *txq = port->txqs[queue];
3804 if (txq->descs != NULL)
3805 qmap |= (1 << queue);
3808 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
3809 mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG, qmap);
3812 /* Disable transmit via physical egress queue
3813 * - HW doesn't take descriptors from DRAM
3815 static void mvpp2_egress_disable(struct mvpp2_port *port)
3819 int tx_port_num = mvpp2_egress_port(port);
3821 /* Issue stop command for active channels only */
3822 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
3823 reg_data = (mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG)) &
3824 MVPP2_TXP_SCHED_ENQ_MASK;
3826 mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG,
3827 (reg_data << MVPP2_TXP_SCHED_DISQ_OFFSET));
3829 /* Wait for all Tx activity to terminate. */
3832 if (delay >= MVPP2_TX_DISABLE_TIMEOUT_MSEC) {
3833 netdev_warn(port->dev,
3834 "Tx stop timed out, status=0x%08x\n",
3841 /* Check port TX Command register that all
3842 * Tx queues are stopped
3844 reg_data = mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG);
3845 } while (reg_data & MVPP2_TXP_SCHED_ENQ_MASK);
3848 /* Rx descriptors helper methods */
3850 /* Get number of Rx descriptors occupied by received packets */
3852 mvpp2_rxq_received(struct mvpp2_port *port, int rxq_id)
3854 u32 val = mvpp2_read(port->priv, MVPP2_RXQ_STATUS_REG(rxq_id));
3856 return val & MVPP2_RXQ_OCCUPIED_MASK;
3859 /* Update Rx queue status with the number of occupied and available
3860 * Rx descriptor slots.
3863 mvpp2_rxq_status_update(struct mvpp2_port *port, int rxq_id,
3864 int used_count, int free_count)
3866 /* Decrement the number of used descriptors and increment count
3867 * increment the number of free descriptors.
3869 u32 val = used_count | (free_count << MVPP2_RXQ_NUM_NEW_OFFSET);
3871 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_UPDATE_REG(rxq_id), val);
3874 /* Get pointer to next RX descriptor to be processed by SW */
3875 static inline struct mvpp2_rx_desc *
3876 mvpp2_rxq_next_desc_get(struct mvpp2_rx_queue *rxq)
3878 int rx_desc = rxq->next_desc_to_proc;
3880 rxq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(rxq, rx_desc);
3881 prefetch(rxq->descs + rxq->next_desc_to_proc);
3882 return rxq->descs + rx_desc;
3885 /* Set rx queue offset */
3886 static void mvpp2_rxq_offset_set(struct mvpp2_port *port,
3887 int prxq, int offset)
3891 /* Convert offset from bytes to units of 32 bytes */
3892 offset = offset >> 5;
3894 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
3895 val &= ~MVPP2_RXQ_PACKET_OFFSET_MASK;
3898 val |= ((offset << MVPP2_RXQ_PACKET_OFFSET_OFFS) &
3899 MVPP2_RXQ_PACKET_OFFSET_MASK);
3901 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
3904 /* Obtain BM cookie information from descriptor */
3905 static u32 mvpp2_bm_cookie_build(struct mvpp2_port *port,
3906 struct mvpp2_rx_desc *rx_desc)
3908 int cpu = smp_processor_id();
3911 pool = (mvpp2_rxdesc_status_get(port, rx_desc) &
3912 MVPP2_RXD_BM_POOL_ID_MASK) >>
3913 MVPP2_RXD_BM_POOL_ID_OFFS;
3915 return ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS) |
3916 ((cpu & 0xFF) << MVPP2_BM_COOKIE_CPU_OFFS);
3919 /* Tx descriptors helper methods */
3921 /* Get number of Tx descriptors waiting to be transmitted by HW */
3922 static int mvpp2_txq_pend_desc_num_get(struct mvpp2_port *port,
3923 struct mvpp2_tx_queue *txq)
3927 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3928 val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
3930 return val & MVPP2_TXQ_PENDING_MASK;
3933 /* Get pointer to next Tx descriptor to be processed (send) by HW */
3934 static struct mvpp2_tx_desc *
3935 mvpp2_txq_next_desc_get(struct mvpp2_tx_queue *txq)
3937 int tx_desc = txq->next_desc_to_proc;
3939 txq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(txq, tx_desc);
3940 return txq->descs + tx_desc;
3943 /* Update HW with number of aggregated Tx descriptors to be sent */
3944 static void mvpp2_aggr_txq_pend_desc_add(struct mvpp2_port *port, int pending)
3946 /* aggregated access - relevant TXQ number is written in TX desc */
3947 mvpp2_write(port->priv, MVPP2_AGGR_TXQ_UPDATE_REG, pending);
3950 /* Get number of sent descriptors and decrement counter.
3951 * The number of sent descriptors is returned.
3954 static inline int mvpp2_txq_sent_desc_proc(struct mvpp2_port *port,
3955 struct mvpp2_tx_queue *txq)
3959 /* Reading status reg resets transmitted descriptor counter */
3960 val = mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(txq->id));
3962 return (val & MVPP2_TRANSMITTED_COUNT_MASK) >>
3963 MVPP2_TRANSMITTED_COUNT_OFFSET;
3966 static void mvpp2_txq_sent_counter_clear(void *arg)
3968 struct mvpp2_port *port = arg;
3971 for (queue = 0; queue < txq_number; queue++) {
3972 int id = port->txqs[queue]->id;
3974 mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(id));
3978 /* Set max sizes for Tx queues */
3979 static void mvpp2_txp_max_tx_size_set(struct mvpp2_port *port)
3982 int txq, tx_port_num;
3984 mtu = port->pkt_size * 8;
3985 if (mtu > MVPP2_TXP_MTU_MAX)
3986 mtu = MVPP2_TXP_MTU_MAX;
3988 /* WA for wrong Token bucket update: Set MTU value = 3*real MTU value */
3991 /* Indirect access to registers */
3992 tx_port_num = mvpp2_egress_port(port);
3993 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
3996 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_MTU_REG);
3997 val &= ~MVPP2_TXP_MTU_MAX;
3999 mvpp2_write(port->priv, MVPP2_TXP_SCHED_MTU_REG, val);
4001 /* TXP token size and all TXQs token size must be larger that MTU */
4002 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG);
4003 size = val & MVPP2_TXP_TOKEN_SIZE_MAX;
4006 val &= ~MVPP2_TXP_TOKEN_SIZE_MAX;
4008 mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
4011 for (txq = 0; txq < txq_number; txq++) {
4012 val = mvpp2_read(port->priv,
4013 MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq));
4014 size = val & MVPP2_TXQ_TOKEN_SIZE_MAX;
4018 val &= ~MVPP2_TXQ_TOKEN_SIZE_MAX;
4020 mvpp2_write(port->priv,
4021 MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq),
4027 /* Free Tx queue skbuffs */
4028 static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
4029 struct mvpp2_tx_queue *txq,
4030 struct mvpp2_txq_pcpu *txq_pcpu, int num)
4034 for (i = 0; i < num; i++)
4035 mvpp2_txq_inc_get(txq_pcpu);
4038 static inline struct mvpp2_rx_queue *mvpp2_get_rx_queue(struct mvpp2_port *port,
4041 int queue = fls(cause) - 1;
4043 return port->rxqs[queue];
4046 static inline struct mvpp2_tx_queue *mvpp2_get_tx_queue(struct mvpp2_port *port,
4049 int queue = fls(cause) - 1;
4051 return port->txqs[queue];
4054 /* Rx/Tx queue initialization/cleanup methods */
4056 /* Allocate and initialize descriptors for aggr TXQ */
4057 static int mvpp2_aggr_txq_init(struct udevice *dev,
4058 struct mvpp2_tx_queue *aggr_txq,
4059 int desc_num, int cpu,
4064 /* Allocate memory for TX descriptors */
4065 aggr_txq->descs = buffer_loc.aggr_tx_descs;
4066 aggr_txq->descs_dma = (dma_addr_t)buffer_loc.aggr_tx_descs;
4067 if (!aggr_txq->descs)
4070 /* Make sure descriptor address is cache line size aligned */
4071 BUG_ON(aggr_txq->descs !=
4072 PTR_ALIGN(aggr_txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
4074 aggr_txq->last_desc = aggr_txq->size - 1;
4076 /* Aggr TXQ no reset WA */
4077 aggr_txq->next_desc_to_proc = mvpp2_read(priv,
4078 MVPP2_AGGR_TXQ_INDEX_REG(cpu));
4080 /* Set Tx descriptors queue starting address indirect
4083 if (priv->hw_version == MVPP21)
4084 txq_dma = aggr_txq->descs_dma;
4086 txq_dma = aggr_txq->descs_dma >>
4087 MVPP22_AGGR_TXQ_DESC_ADDR_OFFS;
4089 mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu), txq_dma);
4090 mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu), desc_num);
4095 /* Create a specified Rx queue */
4096 static int mvpp2_rxq_init(struct mvpp2_port *port,
4097 struct mvpp2_rx_queue *rxq)
4102 rxq->size = port->rx_ring_size;
4104 /* Allocate memory for RX descriptors */
4105 rxq->descs = buffer_loc.rx_descs;
4106 rxq->descs_dma = (dma_addr_t)buffer_loc.rx_descs;
4110 BUG_ON(rxq->descs !=
4111 PTR_ALIGN(rxq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
4113 rxq->last_desc = rxq->size - 1;
4115 /* Zero occupied and non-occupied counters - direct access */
4116 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
4118 /* Set Rx descriptors queue starting address - indirect access */
4119 mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
4120 if (port->priv->hw_version == MVPP21)
4121 rxq_dma = rxq->descs_dma;
4123 rxq_dma = rxq->descs_dma >> MVPP22_DESC_ADDR_OFFS;
4124 mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, rxq_dma);
4125 mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, rxq->size);
4126 mvpp2_write(port->priv, MVPP2_RXQ_INDEX_REG, 0);
4129 mvpp2_rxq_offset_set(port, rxq->id, NET_SKB_PAD);
4131 /* Add number of descriptors ready for receiving packets */
4132 mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size);
4137 /* Push packets received by the RXQ to BM pool */
4138 static void mvpp2_rxq_drop_pkts(struct mvpp2_port *port,
4139 struct mvpp2_rx_queue *rxq)
4143 rx_received = mvpp2_rxq_received(port, rxq->id);
4147 for (i = 0; i < rx_received; i++) {
4148 struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq);
4149 u32 bm = mvpp2_bm_cookie_build(port, rx_desc);
4151 mvpp2_pool_refill(port, bm,
4152 mvpp2_rxdesc_dma_addr_get(port, rx_desc),
4153 mvpp2_rxdesc_cookie_get(port, rx_desc));
4155 mvpp2_rxq_status_update(port, rxq->id, rx_received, rx_received);
4158 /* Cleanup Rx queue */
4159 static void mvpp2_rxq_deinit(struct mvpp2_port *port,
4160 struct mvpp2_rx_queue *rxq)
4162 mvpp2_rxq_drop_pkts(port, rxq);
4166 rxq->next_desc_to_proc = 0;
4169 /* Clear Rx descriptors queue starting address and size;
4170 * free descriptor number
4172 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
4173 mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
4174 mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, 0);
4175 mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, 0);
4178 /* Create and initialize a Tx queue */
4179 static int mvpp2_txq_init(struct mvpp2_port *port,
4180 struct mvpp2_tx_queue *txq)
4183 int cpu, desc, desc_per_txq, tx_port_num;
4184 struct mvpp2_txq_pcpu *txq_pcpu;
4186 txq->size = port->tx_ring_size;
4188 /* Allocate memory for Tx descriptors */
4189 txq->descs = buffer_loc.tx_descs;
4190 txq->descs_dma = (dma_addr_t)buffer_loc.tx_descs;
4194 /* Make sure descriptor address is cache line size aligned */
4195 BUG_ON(txq->descs !=
4196 PTR_ALIGN(txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
4198 txq->last_desc = txq->size - 1;
4200 /* Set Tx descriptors queue starting address - indirect access */
4201 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
4202 mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, txq->descs_dma);
4203 mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, txq->size &
4204 MVPP2_TXQ_DESC_SIZE_MASK);
4205 mvpp2_write(port->priv, MVPP2_TXQ_INDEX_REG, 0);
4206 mvpp2_write(port->priv, MVPP2_TXQ_RSVD_CLR_REG,
4207 txq->id << MVPP2_TXQ_RSVD_CLR_OFFSET);
4208 val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
4209 val &= ~MVPP2_TXQ_PENDING_MASK;
4210 mvpp2_write(port->priv, MVPP2_TXQ_PENDING_REG, val);
4212 /* Calculate base address in prefetch buffer. We reserve 16 descriptors
4213 * for each existing TXQ.
4214 * TCONTS for PON port must be continuous from 0 to MVPP2_MAX_TCONT
4215 * GBE ports assumed to be continious from 0 to MVPP2_MAX_PORTS
4218 desc = (port->id * MVPP2_MAX_TXQ * desc_per_txq) +
4219 (txq->log_id * desc_per_txq);
4221 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG,
4222 MVPP2_PREF_BUF_PTR(desc) | MVPP2_PREF_BUF_SIZE_16 |
4223 MVPP2_PREF_BUF_THRESH(desc_per_txq / 2));
4225 /* WRR / EJP configuration - indirect access */
4226 tx_port_num = mvpp2_egress_port(port);
4227 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
4229 val = mvpp2_read(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id));
4230 val &= ~MVPP2_TXQ_REFILL_PERIOD_ALL_MASK;
4231 val |= MVPP2_TXQ_REFILL_PERIOD_MASK(1);
4232 val |= MVPP2_TXQ_REFILL_TOKENS_ALL_MASK;
4233 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id), val);
4235 val = MVPP2_TXQ_TOKEN_SIZE_MAX;
4236 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq->log_id),
4239 for_each_present_cpu(cpu) {
4240 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
4241 txq_pcpu->size = txq->size;
4247 /* Free allocated TXQ resources */
4248 static void mvpp2_txq_deinit(struct mvpp2_port *port,
4249 struct mvpp2_tx_queue *txq)
4253 txq->next_desc_to_proc = 0;
4256 /* Set minimum bandwidth for disabled TXQs */
4257 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->id), 0);
4259 /* Set Tx descriptors queue starting address and size */
4260 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
4261 mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, 0);
4262 mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, 0);
4265 /* Cleanup Tx ports */
4266 static void mvpp2_txq_clean(struct mvpp2_port *port, struct mvpp2_tx_queue *txq)
4268 struct mvpp2_txq_pcpu *txq_pcpu;
4269 int delay, pending, cpu;
4272 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
4273 val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
4274 val |= MVPP2_TXQ_DRAIN_EN_MASK;
4275 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
4277 /* The napi queue has been stopped so wait for all packets
4278 * to be transmitted.
4282 if (delay >= MVPP2_TX_PENDING_TIMEOUT_MSEC) {
4283 netdev_warn(port->dev,
4284 "port %d: cleaning queue %d timed out\n",
4285 port->id, txq->log_id);
4291 pending = mvpp2_txq_pend_desc_num_get(port, txq);
4294 val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
4295 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
4297 for_each_present_cpu(cpu) {
4298 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
4300 /* Release all packets */
4301 mvpp2_txq_bufs_free(port, txq, txq_pcpu, txq_pcpu->count);
4304 txq_pcpu->count = 0;
4305 txq_pcpu->txq_put_index = 0;
4306 txq_pcpu->txq_get_index = 0;
4310 /* Cleanup all Tx queues */
4311 static void mvpp2_cleanup_txqs(struct mvpp2_port *port)
4313 struct mvpp2_tx_queue *txq;
4317 val = mvpp2_read(port->priv, MVPP2_TX_PORT_FLUSH_REG);
4319 /* Reset Tx ports and delete Tx queues */
4320 val |= MVPP2_TX_PORT_FLUSH_MASK(port->id);
4321 mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
4323 for (queue = 0; queue < txq_number; queue++) {
4324 txq = port->txqs[queue];
4325 mvpp2_txq_clean(port, txq);
4326 mvpp2_txq_deinit(port, txq);
4329 mvpp2_txq_sent_counter_clear(port);
4331 val &= ~MVPP2_TX_PORT_FLUSH_MASK(port->id);
4332 mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
4335 /* Cleanup all Rx queues */
4336 static void mvpp2_cleanup_rxqs(struct mvpp2_port *port)
4340 for (queue = 0; queue < rxq_number; queue++)
4341 mvpp2_rxq_deinit(port, port->rxqs[queue]);
4344 /* Init all Rx queues for port */
4345 static int mvpp2_setup_rxqs(struct mvpp2_port *port)
4349 for (queue = 0; queue < rxq_number; queue++) {
4350 err = mvpp2_rxq_init(port, port->rxqs[queue]);
4357 mvpp2_cleanup_rxqs(port);
4361 /* Init all tx queues for port */
4362 static int mvpp2_setup_txqs(struct mvpp2_port *port)
4364 struct mvpp2_tx_queue *txq;
4367 for (queue = 0; queue < txq_number; queue++) {
4368 txq = port->txqs[queue];
4369 err = mvpp2_txq_init(port, txq);
4374 mvpp2_txq_sent_counter_clear(port);
4378 mvpp2_cleanup_txqs(port);
4383 static void mvpp2_link_event(struct mvpp2_port *port)
4385 struct phy_device *phydev = port->phy_dev;
4386 int status_change = 0;
4390 if ((port->speed != phydev->speed) ||
4391 (port->duplex != phydev->duplex)) {
4394 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
4395 val &= ~(MVPP2_GMAC_CONFIG_MII_SPEED |
4396 MVPP2_GMAC_CONFIG_GMII_SPEED |
4397 MVPP2_GMAC_CONFIG_FULL_DUPLEX |
4398 MVPP2_GMAC_AN_SPEED_EN |
4399 MVPP2_GMAC_AN_DUPLEX_EN);
4402 val |= MVPP2_GMAC_CONFIG_FULL_DUPLEX;
4404 if (phydev->speed == SPEED_1000)
4405 val |= MVPP2_GMAC_CONFIG_GMII_SPEED;
4406 else if (phydev->speed == SPEED_100)
4407 val |= MVPP2_GMAC_CONFIG_MII_SPEED;
4409 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
4411 port->duplex = phydev->duplex;
4412 port->speed = phydev->speed;
4416 if (phydev->link != port->link) {
4417 if (!phydev->link) {
4422 port->link = phydev->link;
4426 if (status_change) {
4428 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
4429 val |= (MVPP2_GMAC_FORCE_LINK_PASS |
4430 MVPP2_GMAC_FORCE_LINK_DOWN);
4431 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
4432 mvpp2_egress_enable(port);
4433 mvpp2_ingress_enable(port);
4435 mvpp2_ingress_disable(port);
4436 mvpp2_egress_disable(port);
4441 /* Main RX/TX processing routines */
4443 /* Display more error info */
4444 static void mvpp2_rx_error(struct mvpp2_port *port,
4445 struct mvpp2_rx_desc *rx_desc)
4447 u32 status = mvpp2_rxdesc_status_get(port, rx_desc);
4448 size_t sz = mvpp2_rxdesc_size_get(port, rx_desc);
4450 switch (status & MVPP2_RXD_ERR_CODE_MASK) {
4451 case MVPP2_RXD_ERR_CRC:
4452 netdev_err(port->dev, "bad rx status %08x (crc error), size=%zu\n",
4455 case MVPP2_RXD_ERR_OVERRUN:
4456 netdev_err(port->dev, "bad rx status %08x (overrun error), size=%zu\n",
4459 case MVPP2_RXD_ERR_RESOURCE:
4460 netdev_err(port->dev, "bad rx status %08x (resource error), size=%zu\n",
4466 /* Reuse skb if possible, or allocate a new skb and add it to BM pool */
4467 static int mvpp2_rx_refill(struct mvpp2_port *port,
4468 struct mvpp2_bm_pool *bm_pool,
4469 u32 bm, dma_addr_t dma_addr)
4471 mvpp2_pool_refill(port, bm, dma_addr, (unsigned long)dma_addr);
4475 /* Set hw internals when starting port */
4476 static void mvpp2_start_dev(struct mvpp2_port *port)
4478 mvpp2_gmac_max_rx_size_set(port);
4479 mvpp2_txp_max_tx_size_set(port);
4481 if (port->priv->hw_version == MVPP21)
4482 mvpp2_port_enable(port);
4484 gop_port_enable(port, 1);
4487 /* Set hw internals when stopping port */
4488 static void mvpp2_stop_dev(struct mvpp2_port *port)
4490 /* Stop new packets from arriving to RXQs */
4491 mvpp2_ingress_disable(port);
4493 mvpp2_egress_disable(port);
4495 if (port->priv->hw_version == MVPP21)
4496 mvpp2_port_disable(port);
4498 gop_port_enable(port, 0);
4501 static int mvpp2_phy_connect(struct udevice *dev, struct mvpp2_port *port)
4503 struct phy_device *phy_dev;
4505 if (!port->init || port->link == 0) {
4506 phy_dev = phy_connect(port->priv->bus, port->phyaddr, dev,
4507 port->phy_interface);
4508 port->phy_dev = phy_dev;
4510 netdev_err(port->dev, "cannot connect to phy\n");
4513 phy_dev->supported &= PHY_GBIT_FEATURES;
4514 phy_dev->advertising = phy_dev->supported;
4516 port->phy_dev = phy_dev;
4521 phy_config(phy_dev);
4522 phy_startup(phy_dev);
4523 if (!phy_dev->link) {
4524 printf("%s: No link\n", phy_dev->dev->name);
4530 mvpp2_egress_enable(port);
4531 mvpp2_ingress_enable(port);
4537 static int mvpp2_open(struct udevice *dev, struct mvpp2_port *port)
4539 unsigned char mac_bcast[ETH_ALEN] = {
4540 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
4543 err = mvpp2_prs_mac_da_accept(port->priv, port->id, mac_bcast, true);
4545 netdev_err(dev, "mvpp2_prs_mac_da_accept BC failed\n");
4548 err = mvpp2_prs_mac_da_accept(port->priv, port->id,
4549 port->dev_addr, true);
4551 netdev_err(dev, "mvpp2_prs_mac_da_accept MC failed\n");
4554 err = mvpp2_prs_def_flow(port);
4556 netdev_err(dev, "mvpp2_prs_def_flow failed\n");
4560 /* Allocate the Rx/Tx queues */
4561 err = mvpp2_setup_rxqs(port);
4563 netdev_err(port->dev, "cannot allocate Rx queues\n");
4567 err = mvpp2_setup_txqs(port);
4569 netdev_err(port->dev, "cannot allocate Tx queues\n");
4573 err = mvpp2_phy_connect(dev, port);
4577 mvpp2_link_event(port);
4579 mvpp2_start_dev(port);
4584 /* No Device ops here in U-Boot */
4586 /* Driver initialization */
4588 static void mvpp2_port_power_up(struct mvpp2_port *port)
4590 struct mvpp2 *priv = port->priv;
4592 /* On PPv2.2 the GoP / interface configuration has already been done */
4593 if (priv->hw_version == MVPP21)
4594 mvpp2_port_mii_set(port);
4595 mvpp2_port_periodic_xon_disable(port);
4596 if (priv->hw_version == MVPP21)
4597 mvpp2_port_fc_adv_enable(port);
4598 mvpp2_port_reset(port);
4601 /* Initialize port HW */
4602 static int mvpp2_port_init(struct udevice *dev, struct mvpp2_port *port)
4604 struct mvpp2 *priv = port->priv;
4605 struct mvpp2_txq_pcpu *txq_pcpu;
4606 int queue, cpu, err;
4608 if (port->first_rxq + rxq_number >
4609 MVPP2_MAX_PORTS * priv->max_port_rxqs)
4613 mvpp2_egress_disable(port);
4614 if (priv->hw_version == MVPP21)
4615 mvpp2_port_disable(port);
4617 gop_port_enable(port, 0);
4619 port->txqs = devm_kcalloc(dev, txq_number, sizeof(*port->txqs),
4624 /* Associate physical Tx queues to this port and initialize.
4625 * The mapping is predefined.
4627 for (queue = 0; queue < txq_number; queue++) {
4628 int queue_phy_id = mvpp2_txq_phys(port->id, queue);
4629 struct mvpp2_tx_queue *txq;
4631 txq = devm_kzalloc(dev, sizeof(*txq), GFP_KERNEL);
4635 txq->pcpu = devm_kzalloc(dev, sizeof(struct mvpp2_txq_pcpu),
4640 txq->id = queue_phy_id;
4641 txq->log_id = queue;
4642 txq->done_pkts_coal = MVPP2_TXDONE_COAL_PKTS_THRESH;
4643 for_each_present_cpu(cpu) {
4644 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
4645 txq_pcpu->cpu = cpu;
4648 port->txqs[queue] = txq;
4651 port->rxqs = devm_kcalloc(dev, rxq_number, sizeof(*port->rxqs),
4656 /* Allocate and initialize Rx queue for this port */
4657 for (queue = 0; queue < rxq_number; queue++) {
4658 struct mvpp2_rx_queue *rxq;
4660 /* Map physical Rx queue to port's logical Rx queue */
4661 rxq = devm_kzalloc(dev, sizeof(*rxq), GFP_KERNEL);
4664 /* Map this Rx queue to a physical queue */
4665 rxq->id = port->first_rxq + queue;
4666 rxq->port = port->id;
4667 rxq->logic_rxq = queue;
4669 port->rxqs[queue] = rxq;
4672 /* Configure Rx queue group interrupt for this port */
4673 if (priv->hw_version == MVPP21) {
4674 mvpp2_write(priv, MVPP21_ISR_RXQ_GROUP_REG(port->id),
4679 val = (port->id << MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_OFFSET);
4680 mvpp2_write(priv, MVPP22_ISR_RXQ_GROUP_INDEX_REG, val);
4682 val = (CONFIG_MV_ETH_RXQ <<
4683 MVPP22_ISR_RXQ_SUB_GROUP_SIZE_OFFSET);
4684 mvpp2_write(priv, MVPP22_ISR_RXQ_SUB_GROUP_CONFIG_REG, val);
4687 /* Create Rx descriptor rings */
4688 for (queue = 0; queue < rxq_number; queue++) {
4689 struct mvpp2_rx_queue *rxq = port->rxqs[queue];
4691 rxq->size = port->rx_ring_size;
4692 rxq->pkts_coal = MVPP2_RX_COAL_PKTS;
4693 rxq->time_coal = MVPP2_RX_COAL_USEC;
4696 mvpp2_ingress_disable(port);
4698 /* Port default configuration */
4699 mvpp2_defaults_set(port);
4701 /* Port's classifier configuration */
4702 mvpp2_cls_oversize_rxq_set(port);
4703 mvpp2_cls_port_config(port);
4705 /* Provide an initial Rx packet size */
4706 port->pkt_size = MVPP2_RX_PKT_SIZE(PKTSIZE_ALIGN);
4708 /* Initialize pools for swf */
4709 err = mvpp2_swf_bm_pool_init(port);
4716 static int phy_info_parse(struct udevice *dev, struct mvpp2_port *port)
4718 int port_node = dev_of_offset(dev);
4719 const char *phy_mode_str;
4725 phy_node = fdtdec_lookup_phandle(gd->fdt_blob, port_node, "phy");
4727 dev_err(&pdev->dev, "missing phy\n");
4731 phy_mode_str = fdt_getprop(gd->fdt_blob, port_node, "phy-mode", NULL);
4733 phy_mode = phy_get_interface_by_name(phy_mode_str);
4734 if (phy_mode == -1) {
4735 dev_err(&pdev->dev, "incorrect phy mode\n");
4739 id = fdtdec_get_int(gd->fdt_blob, port_node, "port-id", -1);
4741 dev_err(&pdev->dev, "missing port-id value\n");
4747 * Not sure if this DT property "phy-speed" will get accepted, so
4748 * this might change later
4750 /* Get phy-speed for SGMII 2.5Gbps vs 1Gbps setup */
4751 port->phy_speed = fdtdec_get_int(gd->fdt_blob, port_node,
4754 phyaddr = fdtdec_get_int(gd->fdt_blob, phy_node, "reg", 0);
4757 if (port->priv->hw_version == MVPP21)
4758 port->first_rxq = port->id * rxq_number;
4760 port->first_rxq = port->id * port->priv->max_port_rxqs;
4761 port->phy_node = phy_node;
4762 port->phy_interface = phy_mode;
4763 port->phyaddr = phyaddr;
4768 /* Ports initialization */
4769 static int mvpp2_port_probe(struct udevice *dev,
4770 struct mvpp2_port *port,
4776 port->tx_ring_size = MVPP2_MAX_TXD;
4777 port->rx_ring_size = MVPP2_MAX_RXD;
4779 err = mvpp2_port_init(dev, port);
4781 dev_err(&pdev->dev, "failed to init port %d\n", port->id);
4784 mvpp2_port_power_up(port);
4786 priv->port_list[port->id] = port;
4790 /* Initialize decoding windows */
4791 static void mvpp2_conf_mbus_windows(const struct mbus_dram_target_info *dram,
4797 for (i = 0; i < 6; i++) {
4798 mvpp2_write(priv, MVPP2_WIN_BASE(i), 0);
4799 mvpp2_write(priv, MVPP2_WIN_SIZE(i), 0);
4802 mvpp2_write(priv, MVPP2_WIN_REMAP(i), 0);
4807 for (i = 0; i < dram->num_cs; i++) {
4808 const struct mbus_dram_window *cs = dram->cs + i;
4810 mvpp2_write(priv, MVPP2_WIN_BASE(i),
4811 (cs->base & 0xffff0000) | (cs->mbus_attr << 8) |
4812 dram->mbus_dram_target_id);
4814 mvpp2_write(priv, MVPP2_WIN_SIZE(i),
4815 (cs->size - 1) & 0xffff0000);
4817 win_enable |= (1 << i);
4820 mvpp2_write(priv, MVPP2_BASE_ADDR_ENABLE, win_enable);
4823 /* Initialize Rx FIFO's */
4824 static void mvpp2_rx_fifo_init(struct mvpp2 *priv)
4828 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
4829 if (priv->hw_version == MVPP22) {
4832 MVPP2_RX_DATA_FIFO_SIZE_REG(port),
4833 MVPP22_RX_FIFO_10GB_PORT_DATA_SIZE);
4835 MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
4836 MVPP22_RX_FIFO_10GB_PORT_ATTR_SIZE);
4837 } else if (port == 1) {
4839 MVPP2_RX_DATA_FIFO_SIZE_REG(port),
4840 MVPP22_RX_FIFO_2_5GB_PORT_DATA_SIZE);
4842 MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
4843 MVPP22_RX_FIFO_2_5GB_PORT_ATTR_SIZE);
4846 MVPP2_RX_DATA_FIFO_SIZE_REG(port),
4847 MVPP22_RX_FIFO_1GB_PORT_DATA_SIZE);
4849 MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
4850 MVPP22_RX_FIFO_1GB_PORT_ATTR_SIZE);
4853 mvpp2_write(priv, MVPP2_RX_DATA_FIFO_SIZE_REG(port),
4854 MVPP21_RX_FIFO_PORT_DATA_SIZE);
4855 mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
4856 MVPP21_RX_FIFO_PORT_ATTR_SIZE);
4860 mvpp2_write(priv, MVPP2_RX_MIN_PKT_SIZE_REG,
4861 MVPP2_RX_FIFO_PORT_MIN_PKT);
4862 mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1);
4865 /* Initialize Tx FIFO's */
4866 static void mvpp2_tx_fifo_init(struct mvpp2 *priv)
4870 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
4871 /* Port 0 supports 10KB TX FIFO */
4873 val = MVPP2_TX_FIFO_DATA_SIZE_10KB &
4874 MVPP22_TX_FIFO_SIZE_MASK;
4876 val = MVPP2_TX_FIFO_DATA_SIZE_3KB &
4877 MVPP22_TX_FIFO_SIZE_MASK;
4879 mvpp2_write(priv, MVPP22_TX_FIFO_SIZE_REG(port), val);
4883 static void mvpp2_axi_init(struct mvpp2 *priv)
4885 u32 val, rdval, wrval;
4887 mvpp2_write(priv, MVPP22_BM_ADDR_HIGH_RLS_REG, 0x0);
4889 /* AXI Bridge Configuration */
4891 rdval = MVPP22_AXI_CODE_CACHE_RD_CACHE
4892 << MVPP22_AXI_ATTR_CACHE_OFFS;
4893 rdval |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
4894 << MVPP22_AXI_ATTR_DOMAIN_OFFS;
4896 wrval = MVPP22_AXI_CODE_CACHE_WR_CACHE
4897 << MVPP22_AXI_ATTR_CACHE_OFFS;
4898 wrval |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
4899 << MVPP22_AXI_ATTR_DOMAIN_OFFS;
4902 mvpp2_write(priv, MVPP22_AXI_BM_WR_ATTR_REG, wrval);
4903 mvpp2_write(priv, MVPP22_AXI_BM_RD_ATTR_REG, rdval);
4906 mvpp2_write(priv, MVPP22_AXI_AGGRQ_DESCR_RD_ATTR_REG, rdval);
4907 mvpp2_write(priv, MVPP22_AXI_TXQ_DESCR_WR_ATTR_REG, wrval);
4908 mvpp2_write(priv, MVPP22_AXI_TXQ_DESCR_RD_ATTR_REG, rdval);
4909 mvpp2_write(priv, MVPP22_AXI_RXQ_DESCR_WR_ATTR_REG, wrval);
4912 mvpp2_write(priv, MVPP22_AXI_TX_DATA_RD_ATTR_REG, rdval);
4913 mvpp2_write(priv, MVPP22_AXI_RX_DATA_WR_ATTR_REG, wrval);
4915 val = MVPP22_AXI_CODE_CACHE_NON_CACHE
4916 << MVPP22_AXI_CODE_CACHE_OFFS;
4917 val |= MVPP22_AXI_CODE_DOMAIN_SYSTEM
4918 << MVPP22_AXI_CODE_DOMAIN_OFFS;
4919 mvpp2_write(priv, MVPP22_AXI_RD_NORMAL_CODE_REG, val);
4920 mvpp2_write(priv, MVPP22_AXI_WR_NORMAL_CODE_REG, val);
4922 val = MVPP22_AXI_CODE_CACHE_RD_CACHE
4923 << MVPP22_AXI_CODE_CACHE_OFFS;
4924 val |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
4925 << MVPP22_AXI_CODE_DOMAIN_OFFS;
4927 mvpp2_write(priv, MVPP22_AXI_RD_SNOOP_CODE_REG, val);
4929 val = MVPP22_AXI_CODE_CACHE_WR_CACHE
4930 << MVPP22_AXI_CODE_CACHE_OFFS;
4931 val |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
4932 << MVPP22_AXI_CODE_DOMAIN_OFFS;
4934 mvpp2_write(priv, MVPP22_AXI_WR_SNOOP_CODE_REG, val);
4937 /* Initialize network controller common part HW */
4938 static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
4940 const struct mbus_dram_target_info *dram_target_info;
4944 /* Checks for hardware constraints (U-Boot uses only one rxq) */
4945 if ((rxq_number > priv->max_port_rxqs) ||
4946 (txq_number > MVPP2_MAX_TXQ)) {
4947 dev_err(&pdev->dev, "invalid queue size parameter\n");
4951 /* MBUS windows configuration */
4952 dram_target_info = mvebu_mbus_dram_info();
4953 if (dram_target_info)
4954 mvpp2_conf_mbus_windows(dram_target_info, priv);
4956 if (priv->hw_version == MVPP22)
4957 mvpp2_axi_init(priv);
4959 /* Disable HW PHY polling */
4960 if (priv->hw_version == MVPP21) {
4961 val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
4962 val |= MVPP2_PHY_AN_STOP_SMI0_MASK;
4963 writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
4965 val = readl(priv->iface_base + MVPP22_SMI_MISC_CFG_REG);
4966 val &= ~MVPP22_SMI_POLLING_EN;
4967 writel(val, priv->iface_base + MVPP22_SMI_MISC_CFG_REG);
4970 /* Allocate and initialize aggregated TXQs */
4971 priv->aggr_txqs = devm_kcalloc(dev, num_present_cpus(),
4972 sizeof(struct mvpp2_tx_queue),
4974 if (!priv->aggr_txqs)
4977 for_each_present_cpu(i) {
4978 priv->aggr_txqs[i].id = i;
4979 priv->aggr_txqs[i].size = MVPP2_AGGR_TXQ_SIZE;
4980 err = mvpp2_aggr_txq_init(dev, &priv->aggr_txqs[i],
4981 MVPP2_AGGR_TXQ_SIZE, i, priv);
4987 mvpp2_rx_fifo_init(priv);
4990 if (priv->hw_version == MVPP22)
4991 mvpp2_tx_fifo_init(priv);
4993 /* Reset Rx queue group interrupt configuration */
4994 for (i = 0; i < MVPP2_MAX_PORTS; i++) {
4995 if (priv->hw_version == MVPP21) {
4996 mvpp2_write(priv, MVPP21_ISR_RXQ_GROUP_REG(i),
5002 val = (i << MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_OFFSET);
5003 mvpp2_write(priv, MVPP22_ISR_RXQ_GROUP_INDEX_REG, val);
5005 val = (CONFIG_MV_ETH_RXQ <<
5006 MVPP22_ISR_RXQ_SUB_GROUP_SIZE_OFFSET);
5008 MVPP22_ISR_RXQ_SUB_GROUP_CONFIG_REG, val);
5012 if (priv->hw_version == MVPP21)
5013 writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT,
5014 priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG);
5016 /* Allow cache snoop when transmiting packets */
5017 mvpp2_write(priv, MVPP2_TX_SNOOP_REG, 0x1);
5019 /* Buffer Manager initialization */
5020 err = mvpp2_bm_init(dev, priv);
5024 /* Parser default initialization */
5025 err = mvpp2_prs_default_init(dev, priv);
5029 /* Classifier default initialization */
5030 mvpp2_cls_init(priv);
5035 /* SMI / MDIO functions */
5037 static int smi_wait_ready(struct mvpp2 *priv)
5039 u32 timeout = MVPP2_SMI_TIMEOUT;
5042 /* wait till the SMI is not busy */
5044 /* read smi register */
5045 smi_reg = readl(priv->mdio_base);
5046 if (timeout-- == 0) {
5047 printf("Error: SMI busy timeout\n");
5050 } while (smi_reg & MVPP2_SMI_BUSY);
5056 * mpp2_mdio_read - miiphy_read callback function.
5058 * Returns 16bit phy register value, or 0xffff on error
5060 static int mpp2_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
5062 struct mvpp2 *priv = bus->priv;
5066 /* check parameters */
5067 if (addr > MVPP2_PHY_ADDR_MASK) {
5068 printf("Error: Invalid PHY address %d\n", addr);
5072 if (reg > MVPP2_PHY_REG_MASK) {
5073 printf("Err: Invalid register offset %d\n", reg);
5077 /* wait till the SMI is not busy */
5078 if (smi_wait_ready(priv) < 0)
5081 /* fill the phy address and regiser offset and read opcode */
5082 smi_reg = (addr << MVPP2_SMI_DEV_ADDR_OFFS)
5083 | (reg << MVPP2_SMI_REG_ADDR_OFFS)
5084 | MVPP2_SMI_OPCODE_READ;
5086 /* write the smi register */
5087 writel(smi_reg, priv->mdio_base);
5089 /* wait till read value is ready */
5090 timeout = MVPP2_SMI_TIMEOUT;
5093 /* read smi register */
5094 smi_reg = readl(priv->mdio_base);
5095 if (timeout-- == 0) {
5096 printf("Err: SMI read ready timeout\n");
5099 } while (!(smi_reg & MVPP2_SMI_READ_VALID));
5101 /* Wait for the data to update in the SMI register */
5102 for (timeout = 0; timeout < MVPP2_SMI_TIMEOUT; timeout++)
5105 return readl(priv->mdio_base) & MVPP2_SMI_DATA_MASK;
5109 * mpp2_mdio_write - miiphy_write callback function.
5111 * Returns 0 if write succeed, -EINVAL on bad parameters
5114 static int mpp2_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
5117 struct mvpp2 *priv = bus->priv;
5120 /* check parameters */
5121 if (addr > MVPP2_PHY_ADDR_MASK) {
5122 printf("Error: Invalid PHY address %d\n", addr);
5126 if (reg > MVPP2_PHY_REG_MASK) {
5127 printf("Err: Invalid register offset %d\n", reg);
5131 /* wait till the SMI is not busy */
5132 if (smi_wait_ready(priv) < 0)
5135 /* fill the phy addr and reg offset and write opcode and data */
5136 smi_reg = value << MVPP2_SMI_DATA_OFFS;
5137 smi_reg |= (addr << MVPP2_SMI_DEV_ADDR_OFFS)
5138 | (reg << MVPP2_SMI_REG_ADDR_OFFS);
5139 smi_reg &= ~MVPP2_SMI_OPCODE_READ;
5141 /* write the smi register */
5142 writel(smi_reg, priv->mdio_base);
5147 static int mvpp2_recv(struct udevice *dev, int flags, uchar **packetp)
5149 struct mvpp2_port *port = dev_get_priv(dev);
5150 struct mvpp2_rx_desc *rx_desc;
5151 struct mvpp2_bm_pool *bm_pool;
5152 dma_addr_t dma_addr;
5154 int pool, rx_bytes, err;
5156 struct mvpp2_rx_queue *rxq;
5157 u32 cause_rx_tx, cause_rx, cause_misc;
5160 cause_rx_tx = mvpp2_read(port->priv,
5161 MVPP2_ISR_RX_TX_CAUSE_REG(port->id));
5162 cause_rx_tx &= ~MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK;
5163 cause_misc = cause_rx_tx & MVPP2_CAUSE_MISC_SUM_MASK;
5164 if (!cause_rx_tx && !cause_misc)
5167 cause_rx = cause_rx_tx & MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK;
5169 /* Process RX packets */
5170 cause_rx |= port->pending_cause_rx;
5171 rxq = mvpp2_get_rx_queue(port, cause_rx);
5173 /* Get number of received packets and clamp the to-do */
5174 rx_received = mvpp2_rxq_received(port, rxq->id);
5176 /* Return if no packets are received */
5180 rx_desc = mvpp2_rxq_next_desc_get(rxq);
5181 rx_status = mvpp2_rxdesc_status_get(port, rx_desc);
5182 rx_bytes = mvpp2_rxdesc_size_get(port, rx_desc);
5183 rx_bytes -= MVPP2_MH_SIZE;
5184 dma_addr = mvpp2_rxdesc_dma_addr_get(port, rx_desc);
5186 bm = mvpp2_bm_cookie_build(port, rx_desc);
5187 pool = mvpp2_bm_cookie_pool_get(bm);
5188 bm_pool = &port->priv->bm_pools[pool];
5190 /* In case of an error, release the requested buffer pointer
5191 * to the Buffer Manager. This request process is controlled
5192 * by the hardware, and the information about the buffer is
5193 * comprised by the RX descriptor.
5195 if (rx_status & MVPP2_RXD_ERR_SUMMARY) {
5196 mvpp2_rx_error(port, rx_desc);
5197 /* Return the buffer to the pool */
5198 mvpp2_pool_refill(port, bm, dma_addr, dma_addr);
5202 err = mvpp2_rx_refill(port, bm_pool, bm, dma_addr);
5204 netdev_err(port->dev, "failed to refill BM pools\n");
5208 /* Update Rx queue management counters */
5210 mvpp2_rxq_status_update(port, rxq->id, 1, 1);
5212 /* give packet to stack - skip on first n bytes */
5213 data = (u8 *)dma_addr + 2 + 32;
5219 * No cache invalidation needed here, since the rx_buffer's are
5220 * located in a uncached memory region
5228 static void mvpp2_txq_drain(struct mvpp2_port *port, struct mvpp2_tx_queue *txq,
5233 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
5234 val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
5236 val |= MVPP2_TXQ_DRAIN_EN_MASK;
5238 val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
5239 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
5242 static int mvpp2_send(struct udevice *dev, void *packet, int length)
5244 struct mvpp2_port *port = dev_get_priv(dev);
5245 struct mvpp2_tx_queue *txq, *aggr_txq;
5246 struct mvpp2_tx_desc *tx_desc;
5250 txq = port->txqs[0];
5251 aggr_txq = &port->priv->aggr_txqs[smp_processor_id()];
5253 /* Get a descriptor for the first part of the packet */
5254 tx_desc = mvpp2_txq_next_desc_get(aggr_txq);
5255 mvpp2_txdesc_txq_set(port, tx_desc, txq->id);
5256 mvpp2_txdesc_size_set(port, tx_desc, length);
5257 mvpp2_txdesc_offset_set(port, tx_desc,
5258 (dma_addr_t)packet & MVPP2_TX_DESC_ALIGN);
5259 mvpp2_txdesc_dma_addr_set(port, tx_desc,
5260 (dma_addr_t)packet & ~MVPP2_TX_DESC_ALIGN);
5261 /* First and Last descriptor */
5262 mvpp2_txdesc_cmd_set(port, tx_desc,
5263 MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE
5264 | MVPP2_TXD_F_DESC | MVPP2_TXD_L_DESC);
5267 flush_dcache_range((unsigned long)packet,
5268 (unsigned long)packet + ALIGN(length, PKTALIGN));
5270 /* Enable transmit */
5272 mvpp2_aggr_txq_pend_desc_add(port, 1);
5274 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
5278 if (timeout++ > 10000) {
5279 printf("timeout: packet not sent from aggregated to phys TXQ\n");
5282 tx_done = mvpp2_txq_pend_desc_num_get(port, txq);
5285 /* Enable TXQ drain */
5286 mvpp2_txq_drain(port, txq, 1);
5290 if (timeout++ > 10000) {
5291 printf("timeout: packet not sent\n");
5294 tx_done = mvpp2_txq_sent_desc_proc(port, txq);
5297 /* Disable TXQ drain */
5298 mvpp2_txq_drain(port, txq, 0);
5303 static int mvpp2_start(struct udevice *dev)
5305 struct eth_pdata *pdata = dev_get_platdata(dev);
5306 struct mvpp2_port *port = dev_get_priv(dev);
5308 /* Load current MAC address */
5309 memcpy(port->dev_addr, pdata->enetaddr, ETH_ALEN);
5311 /* Reconfigure parser accept the original MAC address */
5312 mvpp2_prs_update_mac_da(port, port->dev_addr);
5314 mvpp2_port_power_up(port);
5316 mvpp2_open(dev, port);
5321 static void mvpp2_stop(struct udevice *dev)
5323 struct mvpp2_port *port = dev_get_priv(dev);
5325 mvpp2_stop_dev(port);
5326 mvpp2_cleanup_rxqs(port);
5327 mvpp2_cleanup_txqs(port);
5330 static int mvpp2_base_probe(struct udevice *dev)
5332 struct mvpp2 *priv = dev_get_priv(dev);
5333 struct mii_dev *bus;
5338 /* Save hw-version */
5339 priv->hw_version = dev_get_driver_data(dev);
5342 * U-Boot special buffer handling:
5344 * Allocate buffer area for descs and rx_buffers. This is only
5345 * done once for all interfaces. As only one interface can
5346 * be active. Make this area DMA-safe by disabling the D-cache
5349 /* Align buffer area for descs and rx_buffers to 1MiB */
5350 bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE);
5351 mmu_set_region_dcache_behaviour((unsigned long)bd_space,
5352 BD_SPACE, DCACHE_OFF);
5354 buffer_loc.aggr_tx_descs = (struct mvpp2_tx_desc *)bd_space;
5355 size += MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE;
5357 buffer_loc.tx_descs =
5358 (struct mvpp2_tx_desc *)((unsigned long)bd_space + size);
5359 size += MVPP2_MAX_TXD * MVPP2_DESC_ALIGNED_SIZE;
5361 buffer_loc.rx_descs =
5362 (struct mvpp2_rx_desc *)((unsigned long)bd_space + size);
5363 size += MVPP2_MAX_RXD * MVPP2_DESC_ALIGNED_SIZE;
5365 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
5366 buffer_loc.bm_pool[i] =
5367 (unsigned long *)((unsigned long)bd_space + size);
5368 if (priv->hw_version == MVPP21)
5369 size += MVPP2_BM_POOL_SIZE_MAX * 2 * sizeof(u32);
5371 size += MVPP2_BM_POOL_SIZE_MAX * 2 * sizeof(u64);
5374 for (i = 0; i < MVPP2_BM_LONG_BUF_NUM; i++) {
5375 buffer_loc.rx_buffer[i] =
5376 (unsigned long *)((unsigned long)bd_space + size);
5377 size += RX_BUFFER_SIZE;
5380 /* Clear the complete area so that all descriptors are cleared */
5381 memset(bd_space, 0, size);
5383 /* Save base addresses for later use */
5384 priv->base = (void *)dev_get_addr_index(dev, 0);
5385 if (IS_ERR(priv->base))
5386 return PTR_ERR(priv->base);
5388 if (priv->hw_version == MVPP21) {
5389 priv->lms_base = (void *)dev_get_addr_index(dev, 1);
5390 if (IS_ERR(priv->lms_base))
5391 return PTR_ERR(priv->lms_base);
5393 priv->mdio_base = priv->lms_base + MVPP21_SMI;
5395 priv->iface_base = (void *)dev_get_addr_index(dev, 1);
5396 if (IS_ERR(priv->iface_base))
5397 return PTR_ERR(priv->iface_base);
5399 priv->mdio_base = priv->iface_base + MVPP22_SMI;
5401 /* Store common base addresses for all ports */
5402 priv->mpcs_base = priv->iface_base + MVPP22_MPCS;
5403 priv->xpcs_base = priv->iface_base + MVPP22_XPCS;
5404 priv->rfu1_base = priv->iface_base + MVPP22_RFU1;
5407 if (priv->hw_version == MVPP21)
5408 priv->max_port_rxqs = 8;
5410 priv->max_port_rxqs = 32;
5412 /* Finally create and register the MDIO bus driver */
5415 printf("Failed to allocate MDIO bus\n");
5419 bus->read = mpp2_mdio_read;
5420 bus->write = mpp2_mdio_write;
5421 snprintf(bus->name, sizeof(bus->name), dev->name);
5422 bus->priv = (void *)priv;
5425 return mdio_register(bus);
5428 static int mvpp2_probe(struct udevice *dev)
5430 struct mvpp2_port *port = dev_get_priv(dev);
5431 struct mvpp2 *priv = dev_get_priv(dev->parent);
5434 /* Only call the probe function for the parent once */
5435 if (!priv->probe_done) {
5436 err = mvpp2_base_probe(dev->parent);
5437 priv->probe_done = 1;
5440 port->priv = dev_get_priv(dev->parent);
5442 err = phy_info_parse(dev, port);
5447 * We need the port specific io base addresses at this stage, since
5448 * gop_port_init() accesses these registers
5450 if (priv->hw_version == MVPP21) {
5451 int priv_common_regs_num = 2;
5453 port->base = (void __iomem *)dev_get_addr_index(
5454 dev->parent, priv_common_regs_num + port->id);
5455 if (IS_ERR(port->base))
5456 return PTR_ERR(port->base);
5458 port->gop_id = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
5460 if (port->id == -1) {
5461 dev_err(&pdev->dev, "missing gop-port-id value\n");
5465 port->base = priv->iface_base + MVPP22_PORT_BASE +
5466 port->gop_id * MVPP22_PORT_OFFSET;
5469 gop_port_init(port);
5472 /* Initialize network controller */
5473 err = mvpp2_init(dev, priv);
5475 dev_err(&pdev->dev, "failed to initialize controller\n");
5479 err = mvpp2_port_probe(dev, port, dev_of_offset(dev), priv);
5483 if (priv->hw_version == MVPP22) {
5484 priv->netc_config |= mvpp2_netc_cfg_create(port->gop_id,
5485 port->phy_interface);
5487 /* Netcomplex configurations for all ports */
5488 gop_netc_init(priv, MV_NETC_FIRST_PHASE);
5489 gop_netc_init(priv, MV_NETC_SECOND_PHASE);
5495 static const struct eth_ops mvpp2_ops = {
5496 .start = mvpp2_start,
5502 static struct driver mvpp2_driver = {
5505 .probe = mvpp2_probe,
5507 .priv_auto_alloc_size = sizeof(struct mvpp2_port),
5508 .platdata_auto_alloc_size = sizeof(struct eth_pdata),
5512 * Use a MISC device to bind the n instances (child nodes) of the
5513 * network base controller in UCLASS_ETH.
5515 static int mvpp2_base_bind(struct udevice *parent)
5517 const void *blob = gd->fdt_blob;
5518 int node = dev_of_offset(parent);
5519 struct uclass_driver *drv;
5520 struct udevice *dev;
5521 struct eth_pdata *plat;
5527 /* Lookup eth driver */
5528 drv = lists_uclass_lookup(UCLASS_ETH);
5530 puts("Cannot find eth driver\n");
5534 base_id_add = base_id;
5536 fdt_for_each_subnode(subnode, blob, node) {
5537 /* Increment base_id for all subnodes, also the disabled ones */
5540 /* Skip disabled ports */
5541 if (!fdtdec_get_is_enabled(blob, subnode))
5544 plat = calloc(1, sizeof(*plat));
5548 id = fdtdec_get_int(blob, subnode, "port-id", -1);
5551 name = calloc(1, 16);
5552 sprintf(name, "mvpp2-%d", id);
5554 /* Create child device UCLASS_ETH and bind it */
5555 device_bind(parent, &mvpp2_driver, name, plat, subnode, &dev);
5556 dev_set_of_offset(dev, subnode);
5562 static const struct udevice_id mvpp2_ids[] = {
5564 .compatible = "marvell,armada-375-pp2",
5568 .compatible = "marvell,armada-7k-pp22",
5574 U_BOOT_DRIVER(mvpp2_base) = {
5575 .name = "mvpp2_base",
5577 .of_match = mvpp2_ids,
5578 .bind = mvpp2_base_bind,
5579 .priv_auto_alloc_size = sizeof(struct mvpp2),