mfd/db8500-prcmu: remove support for early silicon revisions
[profile/ivi/kernel-x86-ivi.git] / arch / arm / mach-orion5x / common.c
1 /*
2  * arch/arm/mach-orion5x/common.c
3  *
4  * Core functions for Marvell Orion 5x SoCs
5  *
6  * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
7  *
8  * This file is licensed under the terms of the GNU General Public
9  * License version 2.  This program is licensed "as is" without any
10  * warranty of any kind, whether express or implied.
11  */
12
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/dma-mapping.h>
17 #include <linux/serial_8250.h>
18 #include <linux/mv643xx_i2c.h>
19 #include <linux/ata_platform.h>
20 #include <net/dsa.h>
21 #include <asm/page.h>
22 #include <asm/setup.h>
23 #include <asm/timex.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26 #include <asm/mach/time.h>
27 #include <mach/bridge-regs.h>
28 #include <mach/hardware.h>
29 #include <mach/orion5x.h>
30 #include <plat/orion_nand.h>
31 #include <plat/time.h>
32 #include <plat/common.h>
33 #include <plat/addr-map.h>
34 #include "common.h"
35
36 /*****************************************************************************
37  * I/O Address Mapping
38  ****************************************************************************/
39 static struct map_desc orion5x_io_desc[] __initdata = {
40         {
41                 .virtual        = ORION5X_REGS_VIRT_BASE,
42                 .pfn            = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
43                 .length         = ORION5X_REGS_SIZE,
44                 .type           = MT_DEVICE,
45         }, {
46                 .virtual        = ORION5X_PCIE_IO_VIRT_BASE,
47                 .pfn            = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
48                 .length         = ORION5X_PCIE_IO_SIZE,
49                 .type           = MT_DEVICE,
50         }, {
51                 .virtual        = ORION5X_PCI_IO_VIRT_BASE,
52                 .pfn            = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
53                 .length         = ORION5X_PCI_IO_SIZE,
54                 .type           = MT_DEVICE,
55         }, {
56                 .virtual        = ORION5X_PCIE_WA_VIRT_BASE,
57                 .pfn            = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
58                 .length         = ORION5X_PCIE_WA_SIZE,
59                 .type           = MT_DEVICE,
60         },
61 };
62
63 void __init orion5x_map_io(void)
64 {
65         iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
66 }
67
68
69 /*****************************************************************************
70  * EHCI0
71  ****************************************************************************/
72 void __init orion5x_ehci0_init(void)
73 {
74         orion_ehci_init(ORION5X_USB0_PHYS_BASE, IRQ_ORION5X_USB0_CTRL);
75 }
76
77
78 /*****************************************************************************
79  * EHCI1
80  ****************************************************************************/
81 void __init orion5x_ehci1_init(void)
82 {
83         orion_ehci_1_init(ORION5X_USB1_PHYS_BASE, IRQ_ORION5X_USB1_CTRL);
84 }
85
86
87 /*****************************************************************************
88  * GE00
89  ****************************************************************************/
90 void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
91 {
92         orion_ge00_init(eth_data,
93                         ORION5X_ETH_PHYS_BASE, IRQ_ORION5X_ETH_SUM,
94                         IRQ_ORION5X_ETH_ERR, orion5x_tclk);
95 }
96
97
98 /*****************************************************************************
99  * Ethernet switch
100  ****************************************************************************/
101 void __init orion5x_eth_switch_init(struct dsa_platform_data *d, int irq)
102 {
103         orion_ge00_switch_init(d, irq);
104 }
105
106
107 /*****************************************************************************
108  * I2C
109  ****************************************************************************/
110 void __init orion5x_i2c_init(void)
111 {
112         orion_i2c_init(I2C_PHYS_BASE, IRQ_ORION5X_I2C, 8);
113
114 }
115
116
117 /*****************************************************************************
118  * SATA
119  ****************************************************************************/
120 void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
121 {
122         orion_sata_init(sata_data, ORION5X_SATA_PHYS_BASE, IRQ_ORION5X_SATA);
123 }
124
125
126 /*****************************************************************************
127  * SPI
128  ****************************************************************************/
129 void __init orion5x_spi_init()
130 {
131         orion_spi_init(SPI_PHYS_BASE, orion5x_tclk);
132 }
133
134
135 /*****************************************************************************
136  * UART0
137  ****************************************************************************/
138 void __init orion5x_uart0_init(void)
139 {
140         orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE,
141                          IRQ_ORION5X_UART0, orion5x_tclk);
142 }
143
144 /*****************************************************************************
145  * UART1
146  ****************************************************************************/
147 void __init orion5x_uart1_init(void)
148 {
149         orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE,
150                          IRQ_ORION5X_UART1, orion5x_tclk);
151 }
152
153 /*****************************************************************************
154  * XOR engine
155  ****************************************************************************/
156 void __init orion5x_xor_init(void)
157 {
158         orion_xor0_init(ORION5X_XOR_PHYS_BASE,
159                         ORION5X_XOR_PHYS_BASE + 0x200,
160                         IRQ_ORION5X_XOR0, IRQ_ORION5X_XOR1);
161 }
162
163 /*****************************************************************************
164  * Cryptographic Engines and Security Accelerator (CESA)
165  ****************************************************************************/
166 static void __init orion5x_crypto_init(void)
167 {
168         orion5x_setup_sram_win();
169         orion_crypto_init(ORION5X_CRYPTO_PHYS_BASE, ORION5X_SRAM_PHYS_BASE,
170                           SZ_8K, IRQ_ORION5X_CESA);
171 }
172
173 /*****************************************************************************
174  * Watchdog
175  ****************************************************************************/
176 void __init orion5x_wdt_init(void)
177 {
178         orion_wdt_init(orion5x_tclk);
179 }
180
181
182 /*****************************************************************************
183  * Time handling
184  ****************************************************************************/
185 void __init orion5x_init_early(void)
186 {
187         orion_time_set_base(TIMER_VIRT_BASE);
188 }
189
190 int orion5x_tclk;
191
192 int __init orion5x_find_tclk(void)
193 {
194         u32 dev, rev;
195
196         orion5x_pcie_id(&dev, &rev);
197         if (dev == MV88F6183_DEV_ID &&
198             (readl(MPP_RESET_SAMPLE) & 0x00000200) == 0)
199                 return 133333333;
200
201         return 166666667;
202 }
203
204 static void orion5x_timer_init(void)
205 {
206         orion5x_tclk = orion5x_find_tclk();
207
208         orion_time_init(ORION5X_BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
209                         IRQ_ORION5X_BRIDGE, orion5x_tclk);
210 }
211
212 struct sys_timer orion5x_timer = {
213         .init = orion5x_timer_init,
214 };
215
216
217 /*****************************************************************************
218  * General
219  ****************************************************************************/
220 /*
221  * Identify device ID and rev from PCIe configuration header space '0'.
222  */
223 static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
224 {
225         orion5x_pcie_id(dev, rev);
226
227         if (*dev == MV88F5281_DEV_ID) {
228                 if (*rev == MV88F5281_REV_D2) {
229                         *dev_name = "MV88F5281-D2";
230                 } else if (*rev == MV88F5281_REV_D1) {
231                         *dev_name = "MV88F5281-D1";
232                 } else if (*rev == MV88F5281_REV_D0) {
233                         *dev_name = "MV88F5281-D0";
234                 } else {
235                         *dev_name = "MV88F5281-Rev-Unsupported";
236                 }
237         } else if (*dev == MV88F5182_DEV_ID) {
238                 if (*rev == MV88F5182_REV_A2) {
239                         *dev_name = "MV88F5182-A2";
240                 } else {
241                         *dev_name = "MV88F5182-Rev-Unsupported";
242                 }
243         } else if (*dev == MV88F5181_DEV_ID) {
244                 if (*rev == MV88F5181_REV_B1) {
245                         *dev_name = "MV88F5181-Rev-B1";
246                 } else if (*rev == MV88F5181L_REV_A1) {
247                         *dev_name = "MV88F5181L-Rev-A1";
248                 } else {
249                         *dev_name = "MV88F5181(L)-Rev-Unsupported";
250                 }
251         } else if (*dev == MV88F6183_DEV_ID) {
252                 if (*rev == MV88F6183_REV_B0) {
253                         *dev_name = "MV88F6183-Rev-B0";
254                 } else {
255                         *dev_name = "MV88F6183-Rev-Unsupported";
256                 }
257         } else {
258                 *dev_name = "Device-Unknown";
259         }
260 }
261
262 void __init orion5x_init(void)
263 {
264         char *dev_name;
265         u32 dev, rev;
266
267         orion5x_id(&dev, &rev, &dev_name);
268         printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
269
270         /*
271          * Setup Orion address map
272          */
273         orion5x_setup_cpu_mbus_bridge();
274
275         /*
276          * Don't issue "Wait for Interrupt" instruction if we are
277          * running on D0 5281 silicon.
278          */
279         if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
280                 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
281                 disable_hlt();
282         }
283
284         /*
285          * The 5082/5181l/5182/6082/6082l/6183 have crypto
286          * while 5180n/5181/5281 don't have crypto.
287          */
288         if ((dev == MV88F5181_DEV_ID && rev >= MV88F5181L_REV_A0) ||
289             dev == MV88F5182_DEV_ID || dev == MV88F6183_DEV_ID)
290                 orion5x_crypto_init();
291
292         /*
293          * Register watchdog driver
294          */
295         orion5x_wdt_init();
296 }
297
298 /*
299  * Many orion-based systems have buggy bootloader implementations.
300  * This is a common fixup for bogus memory tags.
301  */
302 void __init tag_fixup_mem32(struct tag *t, char **from,
303                             struct meminfo *meminfo)
304 {
305         for (; t->hdr.size; t = tag_next(t))
306                 if (t->hdr.tag == ATAG_MEM &&
307                     (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
308                      t->u.mem.start & ~PAGE_MASK)) {
309                         printk(KERN_WARNING
310                                "Clearing invalid memory bank %dKB@0x%08x\n",
311                                t->u.mem.size / 1024, t->u.mem.start);
312                         t->hdr.tag = 0;
313                 }
314 }