1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2016, NVIDIA CORPORATION.
5 * Portions based on U-Boot's rtl8169.c.
9 * This driver supports the Synopsys Designware Ethernet QOS (Quality Of
10 * Service) IP block. The IP supports multiple options for bus type, clocking/
11 * reset structure, and feature list.
13 * The driver is written such that generic core logic is kept separate from
14 * configuration-specific logic. Code that interacts with configuration-
15 * specific resources is split out into separate functions to avoid polluting
16 * common code. If/when this driver is enhanced to support multiple
17 * configurations, the core code should be adapted to call all configuration-
18 * specific functions through function pointers, with the definition of those
19 * function pointers being supplied by struct udevice_id eqos_ids[]'s .data
22 * The following configurations are currently supported:
24 * NVIDIA's Tegra186 chip. This configuration uses an AXI master/DMA bus, an
25 * AHB slave/register bus, contains the DMA, MTL, and MAC sub-blocks, and
26 * supports a single RGMII PHY. This configuration also has SW control over
27 * all clock and reset signals to the HW block.
30 #define LOG_CATEGORY UCLASS_ETH
46 #include <asm/cache.h>
50 #ifdef CONFIG_ARCH_IMX8M
51 #include <asm/arch/clock.h>
52 #include <asm/mach-imx/sys_proto.h>
54 #include <linux/bitops.h>
55 #include <linux/delay.h>
59 #define EQOS_MAC_REGS_BASE 0x000
60 struct eqos_mac_regs {
61 uint32_t configuration; /* 0x000 */
62 uint32_t unused_004[(0x070 - 0x004) / 4]; /* 0x004 */
63 uint32_t q0_tx_flow_ctrl; /* 0x070 */
64 uint32_t unused_070[(0x090 - 0x074) / 4]; /* 0x074 */
65 uint32_t rx_flow_ctrl; /* 0x090 */
66 uint32_t unused_094; /* 0x094 */
67 uint32_t txq_prty_map0; /* 0x098 */
68 uint32_t unused_09c; /* 0x09c */
69 uint32_t rxq_ctrl0; /* 0x0a0 */
70 uint32_t unused_0a4; /* 0x0a4 */
71 uint32_t rxq_ctrl2; /* 0x0a8 */
72 uint32_t unused_0ac[(0x0dc - 0x0ac) / 4]; /* 0x0ac */
73 uint32_t us_tic_counter; /* 0x0dc */
74 uint32_t unused_0e0[(0x11c - 0x0e0) / 4]; /* 0x0e0 */
75 uint32_t hw_feature0; /* 0x11c */
76 uint32_t hw_feature1; /* 0x120 */
77 uint32_t hw_feature2; /* 0x124 */
78 uint32_t unused_128[(0x200 - 0x128) / 4]; /* 0x128 */
79 uint32_t mdio_address; /* 0x200 */
80 uint32_t mdio_data; /* 0x204 */
81 uint32_t unused_208[(0x300 - 0x208) / 4]; /* 0x208 */
82 uint32_t address0_high; /* 0x300 */
83 uint32_t address0_low; /* 0x304 */
86 #define EQOS_MAC_CONFIGURATION_GPSLCE BIT(23)
87 #define EQOS_MAC_CONFIGURATION_CST BIT(21)
88 #define EQOS_MAC_CONFIGURATION_ACS BIT(20)
89 #define EQOS_MAC_CONFIGURATION_WD BIT(19)
90 #define EQOS_MAC_CONFIGURATION_JD BIT(17)
91 #define EQOS_MAC_CONFIGURATION_JE BIT(16)
92 #define EQOS_MAC_CONFIGURATION_PS BIT(15)
93 #define EQOS_MAC_CONFIGURATION_FES BIT(14)
94 #define EQOS_MAC_CONFIGURATION_DM BIT(13)
95 #define EQOS_MAC_CONFIGURATION_LM BIT(12)
96 #define EQOS_MAC_CONFIGURATION_TE BIT(1)
97 #define EQOS_MAC_CONFIGURATION_RE BIT(0)
99 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT 16
100 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_MASK 0xffff
101 #define EQOS_MAC_Q0_TX_FLOW_CTRL_TFE BIT(1)
103 #define EQOS_MAC_RX_FLOW_CTRL_RFE BIT(0)
105 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT 0
106 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK 0xff
108 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT 0
109 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK 3
110 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_NOT_ENABLED 0
111 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB 2
112 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV 1
114 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT 0
115 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK 0xff
117 #define EQOS_MAC_HW_FEATURE0_MMCSEL_SHIFT 8
118 #define EQOS_MAC_HW_FEATURE0_HDSEL_SHIFT 2
119 #define EQOS_MAC_HW_FEATURE0_GMIISEL_SHIFT 1
120 #define EQOS_MAC_HW_FEATURE0_MIISEL_SHIFT 0
122 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT 6
123 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK 0x1f
124 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT 0
125 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK 0x1f
127 #define EQOS_MAC_HW_FEATURE3_ASP_SHIFT 28
128 #define EQOS_MAC_HW_FEATURE3_ASP_MASK 0x3
130 #define EQOS_MAC_MDIO_ADDRESS_PA_SHIFT 21
131 #define EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT 16
132 #define EQOS_MAC_MDIO_ADDRESS_CR_SHIFT 8
133 #define EQOS_MAC_MDIO_ADDRESS_CR_20_35 2
134 #define EQOS_MAC_MDIO_ADDRESS_CR_250_300 5
135 #define EQOS_MAC_MDIO_ADDRESS_SKAP BIT(4)
136 #define EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT 2
137 #define EQOS_MAC_MDIO_ADDRESS_GOC_READ 3
138 #define EQOS_MAC_MDIO_ADDRESS_GOC_WRITE 1
139 #define EQOS_MAC_MDIO_ADDRESS_C45E BIT(1)
140 #define EQOS_MAC_MDIO_ADDRESS_GB BIT(0)
142 #define EQOS_MAC_MDIO_DATA_GD_MASK 0xffff
144 #define EQOS_MTL_REGS_BASE 0xd00
145 struct eqos_mtl_regs {
146 uint32_t txq0_operation_mode; /* 0xd00 */
147 uint32_t unused_d04; /* 0xd04 */
148 uint32_t txq0_debug; /* 0xd08 */
149 uint32_t unused_d0c[(0xd18 - 0xd0c) / 4]; /* 0xd0c */
150 uint32_t txq0_quantum_weight; /* 0xd18 */
151 uint32_t unused_d1c[(0xd30 - 0xd1c) / 4]; /* 0xd1c */
152 uint32_t rxq0_operation_mode; /* 0xd30 */
153 uint32_t unused_d34; /* 0xd34 */
154 uint32_t rxq0_debug; /* 0xd38 */
157 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT 16
158 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK 0x1ff
159 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT 2
160 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_MASK 3
161 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED 2
162 #define EQOS_MTL_TXQ0_OPERATION_MODE_TSF BIT(1)
163 #define EQOS_MTL_TXQ0_OPERATION_MODE_FTQ BIT(0)
165 #define EQOS_MTL_TXQ0_DEBUG_TXQSTS BIT(4)
166 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT 1
167 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK 3
169 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT 20
170 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK 0x3ff
171 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT 14
172 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK 0x3f
173 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT 8
174 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK 0x3f
175 #define EQOS_MTL_RXQ0_OPERATION_MODE_EHFC BIT(7)
176 #define EQOS_MTL_RXQ0_OPERATION_MODE_RSF BIT(5)
178 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT 16
179 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK 0x7fff
180 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT 4
181 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK 3
183 #define EQOS_DMA_REGS_BASE 0x1000
184 struct eqos_dma_regs {
185 uint32_t mode; /* 0x1000 */
186 uint32_t sysbus_mode; /* 0x1004 */
187 uint32_t unused_1008[(0x1100 - 0x1008) / 4]; /* 0x1008 */
188 uint32_t ch0_control; /* 0x1100 */
189 uint32_t ch0_tx_control; /* 0x1104 */
190 uint32_t ch0_rx_control; /* 0x1108 */
191 uint32_t unused_110c; /* 0x110c */
192 uint32_t ch0_txdesc_list_haddress; /* 0x1110 */
193 uint32_t ch0_txdesc_list_address; /* 0x1114 */
194 uint32_t ch0_rxdesc_list_haddress; /* 0x1118 */
195 uint32_t ch0_rxdesc_list_address; /* 0x111c */
196 uint32_t ch0_txdesc_tail_pointer; /* 0x1120 */
197 uint32_t unused_1124; /* 0x1124 */
198 uint32_t ch0_rxdesc_tail_pointer; /* 0x1128 */
199 uint32_t ch0_txdesc_ring_length; /* 0x112c */
200 uint32_t ch0_rxdesc_ring_length; /* 0x1130 */
203 #define EQOS_DMA_MODE_SWR BIT(0)
205 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT 16
206 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_MASK 0xf
207 #define EQOS_DMA_SYSBUS_MODE_EAME BIT(11)
208 #define EQOS_DMA_SYSBUS_MODE_BLEN16 BIT(3)
209 #define EQOS_DMA_SYSBUS_MODE_BLEN8 BIT(2)
210 #define EQOS_DMA_SYSBUS_MODE_BLEN4 BIT(1)
212 #define EQOS_DMA_CH0_CONTROL_DSL_SHIFT 18
213 #define EQOS_DMA_CH0_CONTROL_PBLX8 BIT(16)
215 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT 16
216 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK 0x3f
217 #define EQOS_DMA_CH0_TX_CONTROL_OSP BIT(4)
218 #define EQOS_DMA_CH0_TX_CONTROL_ST BIT(0)
220 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT 16
221 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK 0x3f
222 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT 1
223 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK 0x3fff
224 #define EQOS_DMA_CH0_RX_CONTROL_SR BIT(0)
226 /* These registers are Tegra186-specific */
227 #define EQOS_TEGRA186_REGS_BASE 0x8800
228 struct eqos_tegra186_regs {
229 uint32_t sdmemcomppadctrl; /* 0x8800 */
230 uint32_t auto_cal_config; /* 0x8804 */
231 uint32_t unused_8808; /* 0x8808 */
232 uint32_t auto_cal_status; /* 0x880c */
235 #define EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD BIT(31)
237 #define EQOS_AUTO_CAL_CONFIG_START BIT(31)
238 #define EQOS_AUTO_CAL_CONFIG_ENABLE BIT(29)
240 #define EQOS_AUTO_CAL_STATUS_ACTIVE BIT(31)
243 #define EQOS_DESCRIPTORS_TX 4
244 #define EQOS_DESCRIPTORS_RX 4
245 #define EQOS_DESCRIPTORS_NUM (EQOS_DESCRIPTORS_TX + EQOS_DESCRIPTORS_RX)
246 #define EQOS_BUFFER_ALIGN ARCH_DMA_MINALIGN
247 #define EQOS_MAX_PACKET_SIZE ALIGN(1568, ARCH_DMA_MINALIGN)
248 #define EQOS_RX_BUFFER_SIZE (EQOS_DESCRIPTORS_RX * EQOS_MAX_PACKET_SIZE)
257 #define EQOS_DESC3_OWN BIT(31)
258 #define EQOS_DESC3_FD BIT(29)
259 #define EQOS_DESC3_LD BIT(28)
260 #define EQOS_DESC3_BUF1V BIT(24)
262 #define EQOS_AXI_WIDTH_32 4
263 #define EQOS_AXI_WIDTH_64 8
264 #define EQOS_AXI_WIDTH_128 16
267 bool reg_access_always_ok;
272 unsigned int axi_bus_width;
273 phy_interface_t (*interface)(const struct udevice *dev);
274 struct eqos_ops *ops;
278 void (*eqos_inval_desc)(void *desc);
279 void (*eqos_flush_desc)(void *desc);
280 void (*eqos_inval_buffer)(void *buf, size_t size);
281 void (*eqos_flush_buffer)(void *buf, size_t size);
282 int (*eqos_probe_resources)(struct udevice *dev);
283 int (*eqos_remove_resources)(struct udevice *dev);
284 int (*eqos_stop_resets)(struct udevice *dev);
285 int (*eqos_start_resets)(struct udevice *dev);
286 int (*eqos_stop_clks)(struct udevice *dev);
287 int (*eqos_start_clks)(struct udevice *dev);
288 int (*eqos_calibrate_pads)(struct udevice *dev);
289 int (*eqos_disable_calibration)(struct udevice *dev);
290 int (*eqos_set_tx_clk_speed)(struct udevice *dev);
291 ulong (*eqos_get_tick_clk_rate)(struct udevice *dev);
296 const struct eqos_config *config;
298 struct eqos_mac_regs *mac_regs;
299 struct eqos_mtl_regs *mtl_regs;
300 struct eqos_dma_regs *dma_regs;
301 struct eqos_tegra186_regs *tegra186_regs;
302 struct reset_ctl reset_ctl;
303 struct gpio_desc phy_reset_gpio;
304 struct clk clk_master_bus;
306 struct clk clk_ptp_ref;
309 struct clk clk_slave_bus;
311 struct phy_device *phy;
314 int tx_desc_idx, rx_desc_idx;
315 unsigned int desc_size;
325 * TX and RX descriptors are 16 bytes. This causes problems with the cache
326 * maintenance on CPUs where the cache-line size exceeds the size of these
327 * descriptors. What will happen is that when the driver receives a packet
328 * it will be immediately requeued for the hardware to reuse. The CPU will
329 * therefore need to flush the cache-line containing the descriptor, which
330 * will cause all other descriptors in the same cache-line to be flushed
331 * along with it. If one of those descriptors had been written to by the
332 * device those changes (and the associated packet) will be lost.
334 * To work around this, we make use of non-cached memory if available. If
335 * descriptors are mapped uncached there's no need to manually flush them
336 * or invalidate them.
338 * Note that this only applies to descriptors. The packet data buffers do
339 * not have the same constraints since they are 1536 bytes large, so they
340 * are unlikely to share cache-lines.
342 static void *eqos_alloc_descs(struct eqos_priv *eqos, unsigned int num)
344 eqos->desc_size = ALIGN(sizeof(struct eqos_desc),
345 (unsigned int)ARCH_DMA_MINALIGN);
347 return memalign(eqos->desc_size, num * eqos->desc_size);
350 static void eqos_free_descs(void *descs)
355 static struct eqos_desc *eqos_get_desc(struct eqos_priv *eqos,
356 unsigned int num, bool rx)
359 ((rx ? EQOS_DESCRIPTORS_TX : 0) + num) * eqos->desc_size;
362 static void eqos_inval_desc_generic(void *desc)
364 unsigned long start = (unsigned long)desc;
365 unsigned long end = ALIGN(start + sizeof(struct eqos_desc),
368 invalidate_dcache_range(start, end);
371 static void eqos_flush_desc_generic(void *desc)
373 unsigned long start = (unsigned long)desc;
374 unsigned long end = ALIGN(start + sizeof(struct eqos_desc),
377 flush_dcache_range(start, end);
380 static void eqos_inval_buffer_tegra186(void *buf, size_t size)
382 unsigned long start = (unsigned long)buf & ~(ARCH_DMA_MINALIGN - 1);
383 unsigned long end = ALIGN(start + size, ARCH_DMA_MINALIGN);
385 invalidate_dcache_range(start, end);
388 static void eqos_inval_buffer_generic(void *buf, size_t size)
390 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
391 unsigned long end = roundup((unsigned long)buf + size,
394 invalidate_dcache_range(start, end);
397 static void eqos_flush_buffer_tegra186(void *buf, size_t size)
399 flush_cache((unsigned long)buf, size);
402 static void eqos_flush_buffer_generic(void *buf, size_t size)
404 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
405 unsigned long end = roundup((unsigned long)buf + size,
408 flush_dcache_range(start, end);
411 static int eqos_mdio_wait_idle(struct eqos_priv *eqos)
413 return wait_for_bit_le32(&eqos->mac_regs->mdio_address,
414 EQOS_MAC_MDIO_ADDRESS_GB, false,
418 static int eqos_mdio_read(struct mii_dev *bus, int mdio_addr, int mdio_devad,
421 struct eqos_priv *eqos = bus->priv;
425 debug("%s(dev=%p, addr=%x, reg=%d):\n", __func__, eqos->dev, mdio_addr,
428 ret = eqos_mdio_wait_idle(eqos);
430 pr_err("MDIO not idle at entry");
434 val = readl(&eqos->mac_regs->mdio_address);
435 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
436 EQOS_MAC_MDIO_ADDRESS_C45E;
437 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
438 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
439 (eqos->config->config_mac_mdio <<
440 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
441 (EQOS_MAC_MDIO_ADDRESS_GOC_READ <<
442 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
443 EQOS_MAC_MDIO_ADDRESS_GB;
444 writel(val, &eqos->mac_regs->mdio_address);
446 udelay(eqos->config->mdio_wait);
448 ret = eqos_mdio_wait_idle(eqos);
450 pr_err("MDIO read didn't complete");
454 val = readl(&eqos->mac_regs->mdio_data);
455 val &= EQOS_MAC_MDIO_DATA_GD_MASK;
457 debug("%s: val=%x\n", __func__, val);
462 static int eqos_mdio_write(struct mii_dev *bus, int mdio_addr, int mdio_devad,
463 int mdio_reg, u16 mdio_val)
465 struct eqos_priv *eqos = bus->priv;
469 debug("%s(dev=%p, addr=%x, reg=%d, val=%x):\n", __func__, eqos->dev,
470 mdio_addr, mdio_reg, mdio_val);
472 ret = eqos_mdio_wait_idle(eqos);
474 pr_err("MDIO not idle at entry");
478 writel(mdio_val, &eqos->mac_regs->mdio_data);
480 val = readl(&eqos->mac_regs->mdio_address);
481 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
482 EQOS_MAC_MDIO_ADDRESS_C45E;
483 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
484 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
485 (eqos->config->config_mac_mdio <<
486 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
487 (EQOS_MAC_MDIO_ADDRESS_GOC_WRITE <<
488 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
489 EQOS_MAC_MDIO_ADDRESS_GB;
490 writel(val, &eqos->mac_regs->mdio_address);
492 udelay(eqos->config->mdio_wait);
494 ret = eqos_mdio_wait_idle(eqos);
496 pr_err("MDIO read didn't complete");
503 static int eqos_start_clks_tegra186(struct udevice *dev)
506 struct eqos_priv *eqos = dev_get_priv(dev);
509 debug("%s(dev=%p):\n", __func__, dev);
511 ret = clk_enable(&eqos->clk_slave_bus);
513 pr_err("clk_enable(clk_slave_bus) failed: %d", ret);
517 ret = clk_enable(&eqos->clk_master_bus);
519 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
520 goto err_disable_clk_slave_bus;
523 ret = clk_enable(&eqos->clk_rx);
525 pr_err("clk_enable(clk_rx) failed: %d", ret);
526 goto err_disable_clk_master_bus;
529 ret = clk_enable(&eqos->clk_ptp_ref);
531 pr_err("clk_enable(clk_ptp_ref) failed: %d", ret);
532 goto err_disable_clk_rx;
535 ret = clk_set_rate(&eqos->clk_ptp_ref, 125 * 1000 * 1000);
537 pr_err("clk_set_rate(clk_ptp_ref) failed: %d", ret);
538 goto err_disable_clk_ptp_ref;
541 ret = clk_enable(&eqos->clk_tx);
543 pr_err("clk_enable(clk_tx) failed: %d", ret);
544 goto err_disable_clk_ptp_ref;
548 debug("%s: OK\n", __func__);
552 err_disable_clk_ptp_ref:
553 clk_disable(&eqos->clk_ptp_ref);
555 clk_disable(&eqos->clk_rx);
556 err_disable_clk_master_bus:
557 clk_disable(&eqos->clk_master_bus);
558 err_disable_clk_slave_bus:
559 clk_disable(&eqos->clk_slave_bus);
561 debug("%s: FAILED: %d\n", __func__, ret);
566 static int eqos_start_clks_stm32(struct udevice *dev)
569 struct eqos_priv *eqos = dev_get_priv(dev);
572 debug("%s(dev=%p):\n", __func__, dev);
574 ret = clk_enable(&eqos->clk_master_bus);
576 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
580 ret = clk_enable(&eqos->clk_rx);
582 pr_err("clk_enable(clk_rx) failed: %d", ret);
583 goto err_disable_clk_master_bus;
586 ret = clk_enable(&eqos->clk_tx);
588 pr_err("clk_enable(clk_tx) failed: %d", ret);
589 goto err_disable_clk_rx;
592 if (clk_valid(&eqos->clk_ck) && !eqos->clk_ck_enabled) {
593 ret = clk_enable(&eqos->clk_ck);
595 pr_err("clk_enable(clk_ck) failed: %d", ret);
596 goto err_disable_clk_tx;
598 eqos->clk_ck_enabled = true;
602 debug("%s: OK\n", __func__);
607 clk_disable(&eqos->clk_tx);
609 clk_disable(&eqos->clk_rx);
610 err_disable_clk_master_bus:
611 clk_disable(&eqos->clk_master_bus);
613 debug("%s: FAILED: %d\n", __func__, ret);
618 static int eqos_stop_clks_tegra186(struct udevice *dev)
621 struct eqos_priv *eqos = dev_get_priv(dev);
623 debug("%s(dev=%p):\n", __func__, dev);
625 clk_disable(&eqos->clk_tx);
626 clk_disable(&eqos->clk_ptp_ref);
627 clk_disable(&eqos->clk_rx);
628 clk_disable(&eqos->clk_master_bus);
629 clk_disable(&eqos->clk_slave_bus);
632 debug("%s: OK\n", __func__);
636 static int eqos_stop_clks_stm32(struct udevice *dev)
639 struct eqos_priv *eqos = dev_get_priv(dev);
641 debug("%s(dev=%p):\n", __func__, dev);
643 clk_disable(&eqos->clk_tx);
644 clk_disable(&eqos->clk_rx);
645 clk_disable(&eqos->clk_master_bus);
648 debug("%s: OK\n", __func__);
652 static int eqos_start_resets_tegra186(struct udevice *dev)
654 struct eqos_priv *eqos = dev_get_priv(dev);
657 debug("%s(dev=%p):\n", __func__, dev);
659 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
661 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d", ret);
667 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
669 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d", ret);
673 ret = reset_assert(&eqos->reset_ctl);
675 pr_err("reset_assert() failed: %d", ret);
681 ret = reset_deassert(&eqos->reset_ctl);
683 pr_err("reset_deassert() failed: %d", ret);
687 debug("%s: OK\n", __func__);
691 static int eqos_stop_resets_tegra186(struct udevice *dev)
693 struct eqos_priv *eqos = dev_get_priv(dev);
695 reset_assert(&eqos->reset_ctl);
696 dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
701 static int eqos_calibrate_pads_tegra186(struct udevice *dev)
703 struct eqos_priv *eqos = dev_get_priv(dev);
706 debug("%s(dev=%p):\n", __func__, dev);
708 setbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
709 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
713 setbits_le32(&eqos->tegra186_regs->auto_cal_config,
714 EQOS_AUTO_CAL_CONFIG_START | EQOS_AUTO_CAL_CONFIG_ENABLE);
716 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
717 EQOS_AUTO_CAL_STATUS_ACTIVE, true, 10, false);
719 pr_err("calibrate didn't start");
723 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
724 EQOS_AUTO_CAL_STATUS_ACTIVE, false, 10, false);
726 pr_err("calibrate didn't finish");
733 clrbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
734 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
736 debug("%s: returns %d\n", __func__, ret);
741 static int eqos_disable_calibration_tegra186(struct udevice *dev)
743 struct eqos_priv *eqos = dev_get_priv(dev);
745 debug("%s(dev=%p):\n", __func__, dev);
747 clrbits_le32(&eqos->tegra186_regs->auto_cal_config,
748 EQOS_AUTO_CAL_CONFIG_ENABLE);
753 static ulong eqos_get_tick_clk_rate_tegra186(struct udevice *dev)
756 struct eqos_priv *eqos = dev_get_priv(dev);
758 return clk_get_rate(&eqos->clk_slave_bus);
764 static ulong eqos_get_tick_clk_rate_stm32(struct udevice *dev)
767 struct eqos_priv *eqos = dev_get_priv(dev);
769 return clk_get_rate(&eqos->clk_master_bus);
775 __weak u32 imx_get_eqos_csr_clk(void)
777 return 100 * 1000000;
779 __weak int imx_eqos_txclk_set_rate(unsigned long rate)
784 static ulong eqos_get_tick_clk_rate_imx(struct udevice *dev)
786 return imx_get_eqos_csr_clk();
789 static int eqos_set_full_duplex(struct udevice *dev)
791 struct eqos_priv *eqos = dev_get_priv(dev);
793 debug("%s(dev=%p):\n", __func__, dev);
795 setbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
800 static int eqos_set_half_duplex(struct udevice *dev)
802 struct eqos_priv *eqos = dev_get_priv(dev);
804 debug("%s(dev=%p):\n", __func__, dev);
806 clrbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
808 /* WAR: Flush TX queue when switching to half-duplex */
809 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
810 EQOS_MTL_TXQ0_OPERATION_MODE_FTQ);
815 static int eqos_set_gmii_speed(struct udevice *dev)
817 struct eqos_priv *eqos = dev_get_priv(dev);
819 debug("%s(dev=%p):\n", __func__, dev);
821 clrbits_le32(&eqos->mac_regs->configuration,
822 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
827 static int eqos_set_mii_speed_100(struct udevice *dev)
829 struct eqos_priv *eqos = dev_get_priv(dev);
831 debug("%s(dev=%p):\n", __func__, dev);
833 setbits_le32(&eqos->mac_regs->configuration,
834 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
839 static int eqos_set_mii_speed_10(struct udevice *dev)
841 struct eqos_priv *eqos = dev_get_priv(dev);
843 debug("%s(dev=%p):\n", __func__, dev);
845 clrsetbits_le32(&eqos->mac_regs->configuration,
846 EQOS_MAC_CONFIGURATION_FES, EQOS_MAC_CONFIGURATION_PS);
851 static int eqos_set_tx_clk_speed_tegra186(struct udevice *dev)
854 struct eqos_priv *eqos = dev_get_priv(dev);
858 debug("%s(dev=%p):\n", __func__, dev);
860 switch (eqos->phy->speed) {
862 rate = 125 * 1000 * 1000;
865 rate = 25 * 1000 * 1000;
868 rate = 2.5 * 1000 * 1000;
871 pr_err("invalid speed %d", eqos->phy->speed);
875 ret = clk_set_rate(&eqos->clk_tx, rate);
877 pr_err("clk_set_rate(tx_clk, %lu) failed: %d", rate, ret);
885 static int eqos_set_tx_clk_speed_imx(struct udevice *dev)
887 struct eqos_priv *eqos = dev_get_priv(dev);
891 debug("%s(dev=%p):\n", __func__, dev);
893 switch (eqos->phy->speed) {
895 rate = 125 * 1000 * 1000;
898 rate = 25 * 1000 * 1000;
901 rate = 2.5 * 1000 * 1000;
904 pr_err("invalid speed %d", eqos->phy->speed);
908 ret = imx_eqos_txclk_set_rate(rate);
910 pr_err("imx (tx_clk, %lu) failed: %d", rate, ret);
917 static int eqos_adjust_link(struct udevice *dev)
919 struct eqos_priv *eqos = dev_get_priv(dev);
923 debug("%s(dev=%p):\n", __func__, dev);
925 if (eqos->phy->duplex)
926 ret = eqos_set_full_duplex(dev);
928 ret = eqos_set_half_duplex(dev);
930 pr_err("eqos_set_*_duplex() failed: %d", ret);
934 switch (eqos->phy->speed) {
936 en_calibration = true;
937 ret = eqos_set_gmii_speed(dev);
940 en_calibration = true;
941 ret = eqos_set_mii_speed_100(dev);
944 en_calibration = false;
945 ret = eqos_set_mii_speed_10(dev);
948 pr_err("invalid speed %d", eqos->phy->speed);
952 pr_err("eqos_set_*mii_speed*() failed: %d", ret);
956 if (en_calibration) {
957 ret = eqos->config->ops->eqos_calibrate_pads(dev);
959 pr_err("eqos_calibrate_pads() failed: %d",
964 ret = eqos->config->ops->eqos_disable_calibration(dev);
966 pr_err("eqos_disable_calibration() failed: %d",
971 ret = eqos->config->ops->eqos_set_tx_clk_speed(dev);
973 pr_err("eqos_set_tx_clk_speed() failed: %d", ret);
980 static int eqos_write_hwaddr(struct udevice *dev)
982 struct eth_pdata *plat = dev_get_plat(dev);
983 struct eqos_priv *eqos = dev_get_priv(dev);
987 * This function may be called before start() or after stop(). At that
988 * time, on at least some configurations of the EQoS HW, all clocks to
989 * the EQoS HW block will be stopped, and a reset signal applied. If
990 * any register access is attempted in this state, bus timeouts or CPU
991 * hangs may occur. This check prevents that.
993 * A simple solution to this problem would be to not implement
994 * write_hwaddr(), since start() always writes the MAC address into HW
995 * anyway. However, it is desirable to implement write_hwaddr() to
996 * support the case of SW that runs subsequent to U-Boot which expects
997 * the MAC address to already be programmed into the EQoS registers,
998 * which must happen irrespective of whether the U-Boot user (or
999 * scripts) actually made use of the EQoS device, and hence
1000 * irrespective of whether start() was ever called.
1002 * Note that this requirement by subsequent SW is not valid for
1003 * Tegra186, and is likely not valid for any non-PCI instantiation of
1004 * the EQoS HW block. This function is implemented solely as
1005 * future-proofing with the expectation the driver will eventually be
1006 * ported to some system where the expectation above is true.
1008 if (!eqos->config->reg_access_always_ok && !eqos->reg_access_ok)
1011 /* Update the MAC address */
1012 val = (plat->enetaddr[5] << 8) |
1013 (plat->enetaddr[4]);
1014 writel(val, &eqos->mac_regs->address0_high);
1015 val = (plat->enetaddr[3] << 24) |
1016 (plat->enetaddr[2] << 16) |
1017 (plat->enetaddr[1] << 8) |
1018 (plat->enetaddr[0]);
1019 writel(val, &eqos->mac_regs->address0_low);
1024 static int eqos_read_rom_hwaddr(struct udevice *dev)
1026 struct eth_pdata *pdata = dev_get_plat(dev);
1028 #ifdef CONFIG_ARCH_IMX8M
1029 imx_get_mac_from_fuse(dev_seq(dev), pdata->enetaddr);
1031 return !is_valid_ethaddr(pdata->enetaddr);
1034 static int eqos_start(struct udevice *dev)
1036 struct eqos_priv *eqos = dev_get_priv(dev);
1039 u32 val, tx_fifo_sz, rx_fifo_sz, tqs, rqs, pbl;
1043 debug("%s(dev=%p):\n", __func__, dev);
1045 eqos->tx_desc_idx = 0;
1046 eqos->rx_desc_idx = 0;
1048 ret = eqos->config->ops->eqos_start_resets(dev);
1050 pr_err("eqos_start_resets() failed: %d", ret);
1056 eqos->reg_access_ok = true;
1058 ret = wait_for_bit_le32(&eqos->dma_regs->mode,
1059 EQOS_DMA_MODE_SWR, false,
1060 eqos->config->swr_wait, false);
1062 pr_err("EQOS_DMA_MODE_SWR stuck");
1063 goto err_stop_resets;
1066 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1068 pr_err("eqos_calibrate_pads() failed: %d", ret);
1069 goto err_stop_resets;
1071 rate = eqos->config->ops->eqos_get_tick_clk_rate(dev);
1073 val = (rate / 1000000) - 1;
1074 writel(val, &eqos->mac_regs->us_tic_counter);
1077 * if PHY was already connected and configured,
1078 * don't need to reconnect/reconfigure again
1082 #ifdef CONFIG_DM_ETH_PHY
1083 addr = eth_phy_get_addr(dev);
1085 #ifdef DWC_NET_PHYADDR
1086 addr = DWC_NET_PHYADDR;
1088 eqos->phy = phy_connect(eqos->mii, addr, dev,
1089 eqos->config->interface(dev));
1091 pr_err("phy_connect() failed");
1092 goto err_stop_resets;
1095 if (eqos->max_speed) {
1096 ret = phy_set_supported(eqos->phy, eqos->max_speed);
1098 pr_err("phy_set_supported() failed: %d", ret);
1099 goto err_shutdown_phy;
1103 ret = phy_config(eqos->phy);
1105 pr_err("phy_config() failed: %d", ret);
1106 goto err_shutdown_phy;
1110 ret = phy_startup(eqos->phy);
1112 pr_err("phy_startup() failed: %d", ret);
1113 goto err_shutdown_phy;
1116 if (!eqos->phy->link) {
1118 goto err_shutdown_phy;
1121 ret = eqos_adjust_link(dev);
1123 pr_err("eqos_adjust_link() failed: %d", ret);
1124 goto err_shutdown_phy;
1129 /* Enable Store and Forward mode for TX */
1130 /* Program Tx operating mode */
1131 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1132 EQOS_MTL_TXQ0_OPERATION_MODE_TSF |
1133 (EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED <<
1134 EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT));
1136 /* Transmit Queue weight */
1137 writel(0x10, &eqos->mtl_regs->txq0_quantum_weight);
1139 /* Enable Store and Forward mode for RX, since no jumbo frame */
1140 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1141 EQOS_MTL_RXQ0_OPERATION_MODE_RSF);
1143 /* Transmit/Receive queue fifo size; use all RAM for 1 queue */
1144 val = readl(&eqos->mac_regs->hw_feature1);
1145 tx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT) &
1146 EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK;
1147 rx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT) &
1148 EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK;
1151 * r/tx_fifo_sz is encoded as log2(n / 128). Undo that by shifting.
1152 * r/tqs is encoded as (n / 256) - 1.
1154 tqs = (128 << tx_fifo_sz) / 256 - 1;
1155 rqs = (128 << rx_fifo_sz) / 256 - 1;
1157 clrsetbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1158 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK <<
1159 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT,
1160 tqs << EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT);
1161 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1162 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK <<
1163 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT,
1164 rqs << EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT);
1166 /* Flow control used only if each channel gets 4KB or more FIFO */
1167 if (rqs >= ((4096 / 256) - 1)) {
1170 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1171 EQOS_MTL_RXQ0_OPERATION_MODE_EHFC);
1174 * Set Threshold for Activating Flow Contol space for min 2
1175 * frames ie, (1500 * 1) = 1500 bytes.
1177 * Set Threshold for Deactivating Flow Contol for space of
1178 * min 1 frame (frame size 1500bytes) in receive fifo
1180 if (rqs == ((4096 / 256) - 1)) {
1182 * This violates the above formula because of FIFO size
1183 * limit therefore overflow may occur inspite of this.
1185 rfd = 0x3; /* Full-3K */
1186 rfa = 0x1; /* Full-1.5K */
1187 } else if (rqs == ((8192 / 256) - 1)) {
1188 rfd = 0x6; /* Full-4K */
1189 rfa = 0xa; /* Full-6K */
1190 } else if (rqs == ((16384 / 256) - 1)) {
1191 rfd = 0x6; /* Full-4K */
1192 rfa = 0x12; /* Full-10K */
1194 rfd = 0x6; /* Full-4K */
1195 rfa = 0x1E; /* Full-16K */
1198 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1199 (EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK <<
1200 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1201 (EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK <<
1202 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT),
1204 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1206 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT));
1211 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1212 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1213 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1214 eqos->config->config_mac <<
1215 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1217 /* Multicast and Broadcast Queue Enable */
1218 setbits_le32(&eqos->mac_regs->unused_0a4,
1220 /* enable promise mode */
1221 setbits_le32(&eqos->mac_regs->unused_004[1],
1224 /* Set TX flow control parameters */
1225 /* Set Pause Time */
1226 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1227 0xffff << EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT);
1228 /* Assign priority for TX flow control */
1229 clrbits_le32(&eqos->mac_regs->txq_prty_map0,
1230 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK <<
1231 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT);
1232 /* Assign priority for RX flow control */
1233 clrbits_le32(&eqos->mac_regs->rxq_ctrl2,
1234 EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK <<
1235 EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT);
1236 /* Enable flow control */
1237 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1238 EQOS_MAC_Q0_TX_FLOW_CTRL_TFE);
1239 setbits_le32(&eqos->mac_regs->rx_flow_ctrl,
1240 EQOS_MAC_RX_FLOW_CTRL_RFE);
1242 clrsetbits_le32(&eqos->mac_regs->configuration,
1243 EQOS_MAC_CONFIGURATION_GPSLCE |
1244 EQOS_MAC_CONFIGURATION_WD |
1245 EQOS_MAC_CONFIGURATION_JD |
1246 EQOS_MAC_CONFIGURATION_JE,
1247 EQOS_MAC_CONFIGURATION_CST |
1248 EQOS_MAC_CONFIGURATION_ACS);
1250 eqos_write_hwaddr(dev);
1254 /* Enable OSP mode */
1255 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1256 EQOS_DMA_CH0_TX_CONTROL_OSP);
1258 /* RX buffer size. Must be a multiple of bus width */
1259 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1260 EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK <<
1261 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT,
1262 EQOS_MAX_PACKET_SIZE <<
1263 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT);
1265 desc_pad = (eqos->desc_size - sizeof(struct eqos_desc)) /
1266 eqos->config->axi_bus_width;
1268 setbits_le32(&eqos->dma_regs->ch0_control,
1269 EQOS_DMA_CH0_CONTROL_PBLX8 |
1270 (desc_pad << EQOS_DMA_CH0_CONTROL_DSL_SHIFT));
1273 * Burst length must be < 1/2 FIFO size.
1274 * FIFO size in tqs is encoded as (n / 256) - 1.
1275 * Each burst is n * 8 (PBLX8) * 16 (AXI width) == 128 bytes.
1276 * Half of n * 256 is n * 128, so pbl == tqs, modulo the -1.
1281 clrsetbits_le32(&eqos->dma_regs->ch0_tx_control,
1282 EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK <<
1283 EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT,
1284 pbl << EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT);
1286 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1287 EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK <<
1288 EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT,
1289 8 << EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT);
1291 /* DMA performance configuration */
1292 val = (2 << EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT) |
1293 EQOS_DMA_SYSBUS_MODE_EAME | EQOS_DMA_SYSBUS_MODE_BLEN16 |
1294 EQOS_DMA_SYSBUS_MODE_BLEN8 | EQOS_DMA_SYSBUS_MODE_BLEN4;
1295 writel(val, &eqos->dma_regs->sysbus_mode);
1297 /* Set up descriptors */
1299 memset(eqos->descs, 0, eqos->desc_size * EQOS_DESCRIPTORS_NUM);
1301 for (i = 0; i < EQOS_DESCRIPTORS_TX; i++) {
1302 struct eqos_desc *tx_desc = eqos_get_desc(eqos, i, false);
1303 eqos->config->ops->eqos_flush_desc(tx_desc);
1306 for (i = 0; i < EQOS_DESCRIPTORS_RX; i++) {
1307 struct eqos_desc *rx_desc = eqos_get_desc(eqos, i, true);
1308 rx_desc->des0 = (u32)(ulong)(eqos->rx_dma_buf +
1309 (i * EQOS_MAX_PACKET_SIZE));
1310 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1312 eqos->config->ops->eqos_flush_desc(rx_desc);
1313 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf +
1314 (i * EQOS_MAX_PACKET_SIZE),
1315 EQOS_MAX_PACKET_SIZE);
1318 writel(0, &eqos->dma_regs->ch0_txdesc_list_haddress);
1319 writel((ulong)eqos_get_desc(eqos, 0, false),
1320 &eqos->dma_regs->ch0_txdesc_list_address);
1321 writel(EQOS_DESCRIPTORS_TX - 1,
1322 &eqos->dma_regs->ch0_txdesc_ring_length);
1324 writel(0, &eqos->dma_regs->ch0_rxdesc_list_haddress);
1325 writel((ulong)eqos_get_desc(eqos, 0, true),
1326 &eqos->dma_regs->ch0_rxdesc_list_address);
1327 writel(EQOS_DESCRIPTORS_RX - 1,
1328 &eqos->dma_regs->ch0_rxdesc_ring_length);
1330 /* Enable everything */
1331 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1332 EQOS_DMA_CH0_TX_CONTROL_ST);
1333 setbits_le32(&eqos->dma_regs->ch0_rx_control,
1334 EQOS_DMA_CH0_RX_CONTROL_SR);
1335 setbits_le32(&eqos->mac_regs->configuration,
1336 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1338 /* TX tail pointer not written until we need to TX a packet */
1340 * Point RX tail pointer at last descriptor. Ideally, we'd point at the
1341 * first descriptor, implying all descriptors were available. However,
1342 * that's not distinguishable from none of the descriptors being
1345 last_rx_desc = (ulong)eqos_get_desc(eqos, EQOS_DESCRIPTORS_RX - 1, true);
1346 writel(last_rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1348 eqos->started = true;
1350 debug("%s: OK\n", __func__);
1354 phy_shutdown(eqos->phy);
1356 eqos->config->ops->eqos_stop_resets(dev);
1358 pr_err("FAILED: %d", ret);
1362 static void eqos_stop(struct udevice *dev)
1364 struct eqos_priv *eqos = dev_get_priv(dev);
1367 debug("%s(dev=%p):\n", __func__, dev);
1371 eqos->started = false;
1372 eqos->reg_access_ok = false;
1374 /* Disable TX DMA */
1375 clrbits_le32(&eqos->dma_regs->ch0_tx_control,
1376 EQOS_DMA_CH0_TX_CONTROL_ST);
1378 /* Wait for TX all packets to drain out of MTL */
1379 for (i = 0; i < 1000000; i++) {
1380 u32 val = readl(&eqos->mtl_regs->txq0_debug);
1381 u32 trcsts = (val >> EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT) &
1382 EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK;
1383 u32 txqsts = val & EQOS_MTL_TXQ0_DEBUG_TXQSTS;
1384 if ((trcsts != 1) && (!txqsts))
1388 /* Turn off MAC TX and RX */
1389 clrbits_le32(&eqos->mac_regs->configuration,
1390 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1392 /* Wait for all RX packets to drain out of MTL */
1393 for (i = 0; i < 1000000; i++) {
1394 u32 val = readl(&eqos->mtl_regs->rxq0_debug);
1395 u32 prxq = (val >> EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT) &
1396 EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK;
1397 u32 rxqsts = (val >> EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT) &
1398 EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK;
1399 if ((!prxq) && (!rxqsts))
1403 /* Turn off RX DMA */
1404 clrbits_le32(&eqos->dma_regs->ch0_rx_control,
1405 EQOS_DMA_CH0_RX_CONTROL_SR);
1408 phy_shutdown(eqos->phy);
1410 eqos->config->ops->eqos_stop_resets(dev);
1412 debug("%s: OK\n", __func__);
1415 static int eqos_send(struct udevice *dev, void *packet, int length)
1417 struct eqos_priv *eqos = dev_get_priv(dev);
1418 struct eqos_desc *tx_desc;
1421 debug("%s(dev=%p, packet=%p, length=%d):\n", __func__, dev, packet,
1424 memcpy(eqos->tx_dma_buf, packet, length);
1425 eqos->config->ops->eqos_flush_buffer(eqos->tx_dma_buf, length);
1427 tx_desc = eqos_get_desc(eqos, eqos->tx_desc_idx, false);
1428 eqos->tx_desc_idx++;
1429 eqos->tx_desc_idx %= EQOS_DESCRIPTORS_TX;
1431 tx_desc->des0 = (ulong)eqos->tx_dma_buf;
1433 tx_desc->des2 = length;
1435 * Make sure that if HW sees the _OWN write below, it will see all the
1436 * writes to the rest of the descriptor too.
1439 tx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_FD | EQOS_DESC3_LD | length;
1440 eqos->config->ops->eqos_flush_desc(tx_desc);
1442 writel((ulong)eqos_get_desc(eqos, eqos->tx_desc_idx, false),
1443 &eqos->dma_regs->ch0_txdesc_tail_pointer);
1445 for (i = 0; i < 1000000; i++) {
1446 eqos->config->ops->eqos_inval_desc(tx_desc);
1447 if (!(readl(&tx_desc->des3) & EQOS_DESC3_OWN))
1452 debug("%s: TX timeout\n", __func__);
1457 static int eqos_recv(struct udevice *dev, int flags, uchar **packetp)
1459 struct eqos_priv *eqos = dev_get_priv(dev);
1460 struct eqos_desc *rx_desc;
1463 debug("%s(dev=%p, flags=%x):\n", __func__, dev, flags);
1465 rx_desc = eqos_get_desc(eqos, eqos->rx_desc_idx, true);
1466 eqos->config->ops->eqos_inval_desc(rx_desc);
1467 if (rx_desc->des3 & EQOS_DESC3_OWN) {
1468 debug("%s: RX packet not available\n", __func__);
1472 *packetp = eqos->rx_dma_buf +
1473 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1474 length = rx_desc->des3 & 0x7fff;
1475 debug("%s: *packetp=%p, length=%d\n", __func__, *packetp, length);
1477 eqos->config->ops->eqos_inval_buffer(*packetp, length);
1482 static int eqos_free_pkt(struct udevice *dev, uchar *packet, int length)
1484 struct eqos_priv *eqos = dev_get_priv(dev);
1485 uchar *packet_expected;
1486 struct eqos_desc *rx_desc;
1488 debug("%s(packet=%p, length=%d)\n", __func__, packet, length);
1490 packet_expected = eqos->rx_dma_buf +
1491 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1492 if (packet != packet_expected) {
1493 debug("%s: Unexpected packet (expected %p)\n", __func__,
1498 eqos->config->ops->eqos_inval_buffer(packet, length);
1500 rx_desc = eqos_get_desc(eqos, eqos->rx_desc_idx, true);
1504 eqos->config->ops->eqos_flush_desc(rx_desc);
1505 eqos->config->ops->eqos_inval_buffer(packet, length);
1506 rx_desc->des0 = (u32)(ulong)packet;
1510 * Make sure that if HW sees the _OWN write below, it will see all the
1511 * writes to the rest of the descriptor too.
1514 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1515 eqos->config->ops->eqos_flush_desc(rx_desc);
1517 writel((ulong)rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1519 eqos->rx_desc_idx++;
1520 eqos->rx_desc_idx %= EQOS_DESCRIPTORS_RX;
1525 static int eqos_probe_resources_core(struct udevice *dev)
1527 struct eqos_priv *eqos = dev_get_priv(dev);
1530 debug("%s(dev=%p):\n", __func__, dev);
1532 eqos->descs = eqos_alloc_descs(eqos, EQOS_DESCRIPTORS_NUM);
1534 debug("%s: eqos_alloc_descs() failed\n", __func__);
1539 eqos->tx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_MAX_PACKET_SIZE);
1540 if (!eqos->tx_dma_buf) {
1541 debug("%s: memalign(tx_dma_buf) failed\n", __func__);
1543 goto err_free_descs;
1545 debug("%s: tx_dma_buf=%p\n", __func__, eqos->tx_dma_buf);
1547 eqos->rx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_RX_BUFFER_SIZE);
1548 if (!eqos->rx_dma_buf) {
1549 debug("%s: memalign(rx_dma_buf) failed\n", __func__);
1551 goto err_free_tx_dma_buf;
1553 debug("%s: rx_dma_buf=%p\n", __func__, eqos->rx_dma_buf);
1555 eqos->rx_pkt = malloc(EQOS_MAX_PACKET_SIZE);
1556 if (!eqos->rx_pkt) {
1557 debug("%s: malloc(rx_pkt) failed\n", __func__);
1559 goto err_free_rx_dma_buf;
1561 debug("%s: rx_pkt=%p\n", __func__, eqos->rx_pkt);
1563 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf,
1564 EQOS_MAX_PACKET_SIZE * EQOS_DESCRIPTORS_RX);
1566 debug("%s: OK\n", __func__);
1569 err_free_rx_dma_buf:
1570 free(eqos->rx_dma_buf);
1571 err_free_tx_dma_buf:
1572 free(eqos->tx_dma_buf);
1574 eqos_free_descs(eqos->descs);
1577 debug("%s: returns %d\n", __func__, ret);
1581 static int eqos_remove_resources_core(struct udevice *dev)
1583 struct eqos_priv *eqos = dev_get_priv(dev);
1585 debug("%s(dev=%p):\n", __func__, dev);
1588 free(eqos->rx_dma_buf);
1589 free(eqos->tx_dma_buf);
1590 eqos_free_descs(eqos->descs);
1592 debug("%s: OK\n", __func__);
1596 static int eqos_probe_resources_tegra186(struct udevice *dev)
1598 struct eqos_priv *eqos = dev_get_priv(dev);
1601 debug("%s(dev=%p):\n", __func__, dev);
1603 ret = reset_get_by_name(dev, "eqos", &eqos->reset_ctl);
1605 pr_err("reset_get_by_name(rst) failed: %d", ret);
1609 ret = gpio_request_by_name(dev, "phy-reset-gpios", 0,
1610 &eqos->phy_reset_gpio,
1611 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
1613 pr_err("gpio_request_by_name(phy reset) failed: %d", ret);
1614 goto err_free_reset_eqos;
1617 ret = clk_get_by_name(dev, "slave_bus", &eqos->clk_slave_bus);
1619 pr_err("clk_get_by_name(slave_bus) failed: %d", ret);
1620 goto err_free_gpio_phy_reset;
1623 ret = clk_get_by_name(dev, "master_bus", &eqos->clk_master_bus);
1625 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1626 goto err_free_clk_slave_bus;
1629 ret = clk_get_by_name(dev, "rx", &eqos->clk_rx);
1631 pr_err("clk_get_by_name(rx) failed: %d", ret);
1632 goto err_free_clk_master_bus;
1635 ret = clk_get_by_name(dev, "ptp_ref", &eqos->clk_ptp_ref);
1637 pr_err("clk_get_by_name(ptp_ref) failed: %d", ret);
1638 goto err_free_clk_rx;
1642 ret = clk_get_by_name(dev, "tx", &eqos->clk_tx);
1644 pr_err("clk_get_by_name(tx) failed: %d", ret);
1645 goto err_free_clk_ptp_ref;
1648 debug("%s: OK\n", __func__);
1651 err_free_clk_ptp_ref:
1652 clk_free(&eqos->clk_ptp_ref);
1654 clk_free(&eqos->clk_rx);
1655 err_free_clk_master_bus:
1656 clk_free(&eqos->clk_master_bus);
1657 err_free_clk_slave_bus:
1658 clk_free(&eqos->clk_slave_bus);
1659 err_free_gpio_phy_reset:
1660 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1661 err_free_reset_eqos:
1662 reset_free(&eqos->reset_ctl);
1664 debug("%s: returns %d\n", __func__, ret);
1668 /* board-specific Ethernet Interface initializations. */
1669 __weak int board_interface_eth_init(struct udevice *dev,
1670 phy_interface_t interface_type)
1675 static int eqos_probe_resources_stm32(struct udevice *dev)
1677 struct eqos_priv *eqos = dev_get_priv(dev);
1679 phy_interface_t interface;
1681 debug("%s(dev=%p):\n", __func__, dev);
1683 interface = eqos->config->interface(dev);
1685 if (interface == PHY_INTERFACE_MODE_NA) {
1686 pr_err("Invalid PHY interface\n");
1690 ret = board_interface_eth_init(dev, interface);
1694 eqos->max_speed = dev_read_u32_default(dev, "max-speed", 0);
1696 ret = clk_get_by_name(dev, "stmmaceth", &eqos->clk_master_bus);
1698 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1702 ret = clk_get_by_name(dev, "mac-clk-rx", &eqos->clk_rx);
1704 pr_err("clk_get_by_name(rx) failed: %d", ret);
1705 goto err_free_clk_master_bus;
1708 ret = clk_get_by_name(dev, "mac-clk-tx", &eqos->clk_tx);
1710 pr_err("clk_get_by_name(tx) failed: %d", ret);
1711 goto err_free_clk_rx;
1714 /* Get ETH_CLK clocks (optional) */
1715 ret = clk_get_by_name(dev, "eth-ck", &eqos->clk_ck);
1717 pr_warn("No phy clock provided %d", ret);
1719 debug("%s: OK\n", __func__);
1723 clk_free(&eqos->clk_rx);
1724 err_free_clk_master_bus:
1725 clk_free(&eqos->clk_master_bus);
1728 debug("%s: returns %d\n", __func__, ret);
1732 static phy_interface_t eqos_get_interface_tegra186(const struct udevice *dev)
1734 return PHY_INTERFACE_MODE_MII;
1737 static int eqos_probe_resources_imx(struct udevice *dev)
1739 struct eqos_priv *eqos = dev_get_priv(dev);
1740 phy_interface_t interface;
1742 debug("%s(dev=%p):\n", __func__, dev);
1744 interface = eqos->config->interface(dev);
1746 if (interface == PHY_INTERFACE_MODE_NA) {
1747 pr_err("Invalid PHY interface\n");
1751 debug("%s: OK\n", __func__);
1755 static int eqos_remove_resources_tegra186(struct udevice *dev)
1757 struct eqos_priv *eqos = dev_get_priv(dev);
1759 debug("%s(dev=%p):\n", __func__, dev);
1762 clk_free(&eqos->clk_tx);
1763 clk_free(&eqos->clk_ptp_ref);
1764 clk_free(&eqos->clk_rx);
1765 clk_free(&eqos->clk_slave_bus);
1766 clk_free(&eqos->clk_master_bus);
1768 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1769 reset_free(&eqos->reset_ctl);
1771 debug("%s: OK\n", __func__);
1775 static int eqos_remove_resources_stm32(struct udevice *dev)
1778 struct eqos_priv *eqos = dev_get_priv(dev);
1780 debug("%s(dev=%p):\n", __func__, dev);
1782 clk_free(&eqos->clk_tx);
1783 clk_free(&eqos->clk_rx);
1784 clk_free(&eqos->clk_master_bus);
1785 if (clk_valid(&eqos->clk_ck))
1786 clk_free(&eqos->clk_ck);
1789 if (dm_gpio_is_valid(&eqos->phy_reset_gpio))
1790 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1792 debug("%s: OK\n", __func__);
1796 static int eqos_probe(struct udevice *dev)
1798 struct eqos_priv *eqos = dev_get_priv(dev);
1801 debug("%s(dev=%p):\n", __func__, dev);
1804 eqos->config = (void *)dev_get_driver_data(dev);
1806 eqos->regs = dev_read_addr(dev);
1807 if (eqos->regs == FDT_ADDR_T_NONE) {
1808 pr_err("dev_read_addr() failed");
1811 eqos->mac_regs = (void *)(eqos->regs + EQOS_MAC_REGS_BASE);
1812 eqos->mtl_regs = (void *)(eqos->regs + EQOS_MTL_REGS_BASE);
1813 eqos->dma_regs = (void *)(eqos->regs + EQOS_DMA_REGS_BASE);
1814 eqos->tegra186_regs = (void *)(eqos->regs + EQOS_TEGRA186_REGS_BASE);
1816 ret = eqos_probe_resources_core(dev);
1818 pr_err("eqos_probe_resources_core() failed: %d", ret);
1822 ret = eqos->config->ops->eqos_probe_resources(dev);
1824 pr_err("eqos_probe_resources() failed: %d", ret);
1825 goto err_remove_resources_core;
1828 ret = eqos->config->ops->eqos_start_clks(dev);
1830 pr_err("eqos_start_clks() failed: %d", ret);
1831 goto err_remove_resources_tegra;
1834 #ifdef CONFIG_DM_ETH_PHY
1835 eqos->mii = eth_phy_get_mdio_bus(dev);
1838 eqos->mii = mdio_alloc();
1840 pr_err("mdio_alloc() failed");
1844 eqos->mii->read = eqos_mdio_read;
1845 eqos->mii->write = eqos_mdio_write;
1846 eqos->mii->priv = eqos;
1847 strcpy(eqos->mii->name, dev->name);
1849 ret = mdio_register(eqos->mii);
1851 pr_err("mdio_register() failed: %d", ret);
1856 #ifdef CONFIG_DM_ETH_PHY
1857 eth_phy_set_mdio_bus(dev, eqos->mii);
1860 debug("%s: OK\n", __func__);
1864 mdio_free(eqos->mii);
1866 eqos->config->ops->eqos_stop_clks(dev);
1867 err_remove_resources_tegra:
1868 eqos->config->ops->eqos_remove_resources(dev);
1869 err_remove_resources_core:
1870 eqos_remove_resources_core(dev);
1872 debug("%s: returns %d\n", __func__, ret);
1876 static int eqos_remove(struct udevice *dev)
1878 struct eqos_priv *eqos = dev_get_priv(dev);
1880 debug("%s(dev=%p):\n", __func__, dev);
1882 mdio_unregister(eqos->mii);
1883 mdio_free(eqos->mii);
1884 eqos->config->ops->eqos_stop_clks(dev);
1885 eqos->config->ops->eqos_remove_resources(dev);
1887 eqos_probe_resources_core(dev);
1889 debug("%s: OK\n", __func__);
1893 static int eqos_null_ops(struct udevice *dev)
1898 static const struct eth_ops eqos_ops = {
1899 .start = eqos_start,
1903 .free_pkt = eqos_free_pkt,
1904 .write_hwaddr = eqos_write_hwaddr,
1905 .read_rom_hwaddr = eqos_read_rom_hwaddr,
1908 static struct eqos_ops eqos_tegra186_ops = {
1909 .eqos_inval_desc = eqos_inval_desc_generic,
1910 .eqos_flush_desc = eqos_flush_desc_generic,
1911 .eqos_inval_buffer = eqos_inval_buffer_tegra186,
1912 .eqos_flush_buffer = eqos_flush_buffer_tegra186,
1913 .eqos_probe_resources = eqos_probe_resources_tegra186,
1914 .eqos_remove_resources = eqos_remove_resources_tegra186,
1915 .eqos_stop_resets = eqos_stop_resets_tegra186,
1916 .eqos_start_resets = eqos_start_resets_tegra186,
1917 .eqos_stop_clks = eqos_stop_clks_tegra186,
1918 .eqos_start_clks = eqos_start_clks_tegra186,
1919 .eqos_calibrate_pads = eqos_calibrate_pads_tegra186,
1920 .eqos_disable_calibration = eqos_disable_calibration_tegra186,
1921 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_tegra186,
1922 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_tegra186
1925 static const struct eqos_config __maybe_unused eqos_tegra186_config = {
1926 .reg_access_always_ok = false,
1929 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
1930 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_20_35,
1931 .axi_bus_width = EQOS_AXI_WIDTH_128,
1932 .interface = eqos_get_interface_tegra186,
1933 .ops = &eqos_tegra186_ops
1936 static struct eqos_ops eqos_stm32_ops = {
1937 .eqos_inval_desc = eqos_inval_desc_generic,
1938 .eqos_flush_desc = eqos_flush_desc_generic,
1939 .eqos_inval_buffer = eqos_inval_buffer_generic,
1940 .eqos_flush_buffer = eqos_flush_buffer_generic,
1941 .eqos_probe_resources = eqos_probe_resources_stm32,
1942 .eqos_remove_resources = eqos_remove_resources_stm32,
1943 .eqos_stop_resets = eqos_null_ops,
1944 .eqos_start_resets = eqos_null_ops,
1945 .eqos_stop_clks = eqos_stop_clks_stm32,
1946 .eqos_start_clks = eqos_start_clks_stm32,
1947 .eqos_calibrate_pads = eqos_null_ops,
1948 .eqos_disable_calibration = eqos_null_ops,
1949 .eqos_set_tx_clk_speed = eqos_null_ops,
1950 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_stm32
1953 static const struct eqos_config __maybe_unused eqos_stm32_config = {
1954 .reg_access_always_ok = false,
1957 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV,
1958 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
1959 .axi_bus_width = EQOS_AXI_WIDTH_64,
1960 .interface = dev_read_phy_mode,
1961 .ops = &eqos_stm32_ops
1964 static struct eqos_ops eqos_imx_ops = {
1965 .eqos_inval_desc = eqos_inval_desc_generic,
1966 .eqos_flush_desc = eqos_flush_desc_generic,
1967 .eqos_inval_buffer = eqos_inval_buffer_generic,
1968 .eqos_flush_buffer = eqos_flush_buffer_generic,
1969 .eqos_probe_resources = eqos_probe_resources_imx,
1970 .eqos_remove_resources = eqos_null_ops,
1971 .eqos_stop_resets = eqos_null_ops,
1972 .eqos_start_resets = eqos_null_ops,
1973 .eqos_stop_clks = eqos_null_ops,
1974 .eqos_start_clks = eqos_null_ops,
1975 .eqos_calibrate_pads = eqos_null_ops,
1976 .eqos_disable_calibration = eqos_null_ops,
1977 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_imx,
1978 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx
1981 struct eqos_config __maybe_unused eqos_imx_config = {
1982 .reg_access_always_ok = false,
1985 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
1986 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
1987 .axi_bus_width = EQOS_AXI_WIDTH_64,
1988 .interface = dev_read_phy_mode,
1989 .ops = &eqos_imx_ops
1992 static const struct udevice_id eqos_ids[] = {
1993 #if IS_ENABLED(CONFIG_DWC_ETH_QOS_TEGRA186)
1995 .compatible = "nvidia,tegra186-eqos",
1996 .data = (ulong)&eqos_tegra186_config
1999 #if IS_ENABLED(CONFIG_DWC_ETH_QOS_STM32)
2001 .compatible = "st,stm32mp1-dwmac",
2002 .data = (ulong)&eqos_stm32_config
2005 #if IS_ENABLED(CONFIG_DWC_ETH_QOS_IMX)
2007 .compatible = "nxp,imx8mp-dwmac-eqos",
2008 .data = (ulong)&eqos_imx_config
2015 U_BOOT_DRIVER(eth_eqos) = {
2018 .of_match = of_match_ptr(eqos_ids),
2019 .probe = eqos_probe,
2020 .remove = eqos_remove,
2022 .priv_auto = sizeof(struct eqos_priv),
2023 .plat_auto = sizeof(struct eth_pdata),