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.
43 #include <asm/cache.h>
47 #ifdef CONFIG_ARCH_IMX8M
48 #include <asm/arch/clock.h>
49 #include <asm/mach-imx/sys_proto.h>
51 #include <linux/delay.h>
55 #define EQOS_MAC_REGS_BASE 0x000
56 struct eqos_mac_regs {
57 uint32_t configuration; /* 0x000 */
58 uint32_t unused_004[(0x070 - 0x004) / 4]; /* 0x004 */
59 uint32_t q0_tx_flow_ctrl; /* 0x070 */
60 uint32_t unused_070[(0x090 - 0x074) / 4]; /* 0x074 */
61 uint32_t rx_flow_ctrl; /* 0x090 */
62 uint32_t unused_094; /* 0x094 */
63 uint32_t txq_prty_map0; /* 0x098 */
64 uint32_t unused_09c; /* 0x09c */
65 uint32_t rxq_ctrl0; /* 0x0a0 */
66 uint32_t unused_0a4; /* 0x0a4 */
67 uint32_t rxq_ctrl2; /* 0x0a8 */
68 uint32_t unused_0ac[(0x0dc - 0x0ac) / 4]; /* 0x0ac */
69 uint32_t us_tic_counter; /* 0x0dc */
70 uint32_t unused_0e0[(0x11c - 0x0e0) / 4]; /* 0x0e0 */
71 uint32_t hw_feature0; /* 0x11c */
72 uint32_t hw_feature1; /* 0x120 */
73 uint32_t hw_feature2; /* 0x124 */
74 uint32_t unused_128[(0x200 - 0x128) / 4]; /* 0x128 */
75 uint32_t mdio_address; /* 0x200 */
76 uint32_t mdio_data; /* 0x204 */
77 uint32_t unused_208[(0x300 - 0x208) / 4]; /* 0x208 */
78 uint32_t address0_high; /* 0x300 */
79 uint32_t address0_low; /* 0x304 */
82 #define EQOS_MAC_CONFIGURATION_GPSLCE BIT(23)
83 #define EQOS_MAC_CONFIGURATION_CST BIT(21)
84 #define EQOS_MAC_CONFIGURATION_ACS BIT(20)
85 #define EQOS_MAC_CONFIGURATION_WD BIT(19)
86 #define EQOS_MAC_CONFIGURATION_JD BIT(17)
87 #define EQOS_MAC_CONFIGURATION_JE BIT(16)
88 #define EQOS_MAC_CONFIGURATION_PS BIT(15)
89 #define EQOS_MAC_CONFIGURATION_FES BIT(14)
90 #define EQOS_MAC_CONFIGURATION_DM BIT(13)
91 #define EQOS_MAC_CONFIGURATION_LM BIT(12)
92 #define EQOS_MAC_CONFIGURATION_TE BIT(1)
93 #define EQOS_MAC_CONFIGURATION_RE BIT(0)
95 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT 16
96 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_MASK 0xffff
97 #define EQOS_MAC_Q0_TX_FLOW_CTRL_TFE BIT(1)
99 #define EQOS_MAC_RX_FLOW_CTRL_RFE BIT(0)
101 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT 0
102 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK 0xff
104 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT 0
105 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK 3
106 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_NOT_ENABLED 0
107 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB 2
108 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV 1
110 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT 0
111 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK 0xff
113 #define EQOS_MAC_HW_FEATURE0_MMCSEL_SHIFT 8
114 #define EQOS_MAC_HW_FEATURE0_HDSEL_SHIFT 2
115 #define EQOS_MAC_HW_FEATURE0_GMIISEL_SHIFT 1
116 #define EQOS_MAC_HW_FEATURE0_MIISEL_SHIFT 0
118 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT 6
119 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK 0x1f
120 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT 0
121 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK 0x1f
123 #define EQOS_MAC_HW_FEATURE3_ASP_SHIFT 28
124 #define EQOS_MAC_HW_FEATURE3_ASP_MASK 0x3
126 #define EQOS_MAC_MDIO_ADDRESS_PA_SHIFT 21
127 #define EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT 16
128 #define EQOS_MAC_MDIO_ADDRESS_CR_SHIFT 8
129 #define EQOS_MAC_MDIO_ADDRESS_CR_20_35 2
130 #define EQOS_MAC_MDIO_ADDRESS_CR_250_300 5
131 #define EQOS_MAC_MDIO_ADDRESS_SKAP BIT(4)
132 #define EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT 2
133 #define EQOS_MAC_MDIO_ADDRESS_GOC_READ 3
134 #define EQOS_MAC_MDIO_ADDRESS_GOC_WRITE 1
135 #define EQOS_MAC_MDIO_ADDRESS_C45E BIT(1)
136 #define EQOS_MAC_MDIO_ADDRESS_GB BIT(0)
138 #define EQOS_MAC_MDIO_DATA_GD_MASK 0xffff
140 #define EQOS_MTL_REGS_BASE 0xd00
141 struct eqos_mtl_regs {
142 uint32_t txq0_operation_mode; /* 0xd00 */
143 uint32_t unused_d04; /* 0xd04 */
144 uint32_t txq0_debug; /* 0xd08 */
145 uint32_t unused_d0c[(0xd18 - 0xd0c) / 4]; /* 0xd0c */
146 uint32_t txq0_quantum_weight; /* 0xd18 */
147 uint32_t unused_d1c[(0xd30 - 0xd1c) / 4]; /* 0xd1c */
148 uint32_t rxq0_operation_mode; /* 0xd30 */
149 uint32_t unused_d34; /* 0xd34 */
150 uint32_t rxq0_debug; /* 0xd38 */
153 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT 16
154 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK 0x1ff
155 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT 2
156 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_MASK 3
157 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED 2
158 #define EQOS_MTL_TXQ0_OPERATION_MODE_TSF BIT(1)
159 #define EQOS_MTL_TXQ0_OPERATION_MODE_FTQ BIT(0)
161 #define EQOS_MTL_TXQ0_DEBUG_TXQSTS BIT(4)
162 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT 1
163 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK 3
165 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT 20
166 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK 0x3ff
167 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT 14
168 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK 0x3f
169 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT 8
170 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK 0x3f
171 #define EQOS_MTL_RXQ0_OPERATION_MODE_EHFC BIT(7)
172 #define EQOS_MTL_RXQ0_OPERATION_MODE_RSF BIT(5)
173 #define EQOS_MTL_RXQ0_OPERATION_MODE_FEP BIT(4)
174 #define EQOS_MTL_RXQ0_OPERATION_MODE_FUP BIT(3)
176 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT 16
177 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK 0x7fff
178 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT 4
179 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK 3
181 #define EQOS_DMA_REGS_BASE 0x1000
182 struct eqos_dma_regs {
183 uint32_t mode; /* 0x1000 */
184 uint32_t sysbus_mode; /* 0x1004 */
185 uint32_t unused_1008[(0x1100 - 0x1008) / 4]; /* 0x1008 */
186 uint32_t ch0_control; /* 0x1100 */
187 uint32_t ch0_tx_control; /* 0x1104 */
188 uint32_t ch0_rx_control; /* 0x1108 */
189 uint32_t unused_110c; /* 0x110c */
190 uint32_t ch0_txdesc_list_haddress; /* 0x1110 */
191 uint32_t ch0_txdesc_list_address; /* 0x1114 */
192 uint32_t ch0_rxdesc_list_haddress; /* 0x1118 */
193 uint32_t ch0_rxdesc_list_address; /* 0x111c */
194 uint32_t ch0_txdesc_tail_pointer; /* 0x1120 */
195 uint32_t unused_1124; /* 0x1124 */
196 uint32_t ch0_rxdesc_tail_pointer; /* 0x1128 */
197 uint32_t ch0_txdesc_ring_length; /* 0x112c */
198 uint32_t ch0_rxdesc_ring_length; /* 0x1130 */
201 #define EQOS_DMA_MODE_SWR BIT(0)
203 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT 16
204 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_MASK 0xf
205 #define EQOS_DMA_SYSBUS_MODE_EAME BIT(11)
206 #define EQOS_DMA_SYSBUS_MODE_BLEN16 BIT(3)
207 #define EQOS_DMA_SYSBUS_MODE_BLEN8 BIT(2)
208 #define EQOS_DMA_SYSBUS_MODE_BLEN4 BIT(1)
210 #define EQOS_DMA_CH0_CONTROL_PBLX8 BIT(16)
212 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT 16
213 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK 0x3f
214 #define EQOS_DMA_CH0_TX_CONTROL_OSP BIT(4)
215 #define EQOS_DMA_CH0_TX_CONTROL_ST BIT(0)
217 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT 16
218 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK 0x3f
219 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT 1
220 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK 0x3fff
221 #define EQOS_DMA_CH0_RX_CONTROL_SR BIT(0)
223 /* These registers are Tegra186-specific */
224 #define EQOS_TEGRA186_REGS_BASE 0x8800
225 struct eqos_tegra186_regs {
226 uint32_t sdmemcomppadctrl; /* 0x8800 */
227 uint32_t auto_cal_config; /* 0x8804 */
228 uint32_t unused_8808; /* 0x8808 */
229 uint32_t auto_cal_status; /* 0x880c */
232 #define EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD BIT(31)
234 #define EQOS_AUTO_CAL_CONFIG_START BIT(31)
235 #define EQOS_AUTO_CAL_CONFIG_ENABLE BIT(29)
237 #define EQOS_AUTO_CAL_STATUS_ACTIVE BIT(31)
241 #define EQOS_DESCRIPTOR_WORDS 4
242 #define EQOS_DESCRIPTOR_SIZE (EQOS_DESCRIPTOR_WORDS * 4)
243 /* We assume ARCH_DMA_MINALIGN >= 16; 16 is the EQOS HW minimum */
244 #define EQOS_DESCRIPTOR_ALIGN ARCH_DMA_MINALIGN
245 #define EQOS_DESCRIPTORS_TX 4
246 #define EQOS_DESCRIPTORS_RX 4
247 #define EQOS_DESCRIPTORS_NUM (EQOS_DESCRIPTORS_TX + EQOS_DESCRIPTORS_RX)
248 #define EQOS_DESCRIPTORS_SIZE ALIGN(EQOS_DESCRIPTORS_NUM * \
249 EQOS_DESCRIPTOR_SIZE, ARCH_DMA_MINALIGN)
250 #define EQOS_BUFFER_ALIGN ARCH_DMA_MINALIGN
251 #define EQOS_MAX_PACKET_SIZE ALIGN(1568, ARCH_DMA_MINALIGN)
252 #define EQOS_RX_BUFFER_SIZE (EQOS_DESCRIPTORS_RX * EQOS_MAX_PACKET_SIZE)
255 * Warn if the cache-line size is larger than the descriptor size. In such
256 * cases the driver will likely fail because the CPU needs to flush the cache
257 * when requeuing RX buffers, therefore descriptors written by the hardware
258 * may be discarded. Architectures with full IO coherence, such as x86, do not
259 * experience this issue, and hence are excluded from this condition.
261 * This can be fixed by defining CONFIG_SYS_NONCACHED_MEMORY which will cause
262 * the driver to allocate descriptors from a pool of non-cached memory.
264 #if EQOS_DESCRIPTOR_SIZE < ARCH_DMA_MINALIGN
265 #if !defined(CONFIG_SYS_NONCACHED_MEMORY) && \
266 !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) && !defined(CONFIG_X86)
267 #warning Cache line size is larger than descriptor size
278 #define EQOS_DESC3_OWN BIT(31)
279 #define EQOS_DESC3_FD BIT(29)
280 #define EQOS_DESC3_LD BIT(28)
281 #define EQOS_DESC3_BUF1V BIT(24)
284 bool reg_access_always_ok;
289 phy_interface_t (*interface)(struct udevice *dev);
290 struct eqos_ops *ops;
294 void (*eqos_inval_desc)(void *desc);
295 void (*eqos_flush_desc)(void *desc);
296 void (*eqos_inval_buffer)(void *buf, size_t size);
297 void (*eqos_flush_buffer)(void *buf, size_t size);
298 int (*eqos_probe_resources)(struct udevice *dev);
299 int (*eqos_remove_resources)(struct udevice *dev);
300 int (*eqos_stop_resets)(struct udevice *dev);
301 int (*eqos_start_resets)(struct udevice *dev);
302 void (*eqos_stop_clks)(struct udevice *dev);
303 int (*eqos_start_clks)(struct udevice *dev);
304 int (*eqos_calibrate_pads)(struct udevice *dev);
305 int (*eqos_disable_calibration)(struct udevice *dev);
306 int (*eqos_set_tx_clk_speed)(struct udevice *dev);
307 ulong (*eqos_get_tick_clk_rate)(struct udevice *dev);
312 const struct eqos_config *config;
314 struct eqos_mac_regs *mac_regs;
315 struct eqos_mtl_regs *mtl_regs;
316 struct eqos_dma_regs *dma_regs;
317 struct eqos_tegra186_regs *tegra186_regs;
318 struct reset_ctl reset_ctl;
319 struct gpio_desc phy_reset_gpio;
320 struct clk clk_master_bus;
322 struct clk clk_ptp_ref;
325 struct clk clk_slave_bus;
327 struct phy_device *phy;
331 struct eqos_desc *tx_descs;
332 struct eqos_desc *rx_descs;
333 int tx_desc_idx, rx_desc_idx;
342 * TX and RX descriptors are 16 bytes. This causes problems with the cache
343 * maintenance on CPUs where the cache-line size exceeds the size of these
344 * descriptors. What will happen is that when the driver receives a packet
345 * it will be immediately requeued for the hardware to reuse. The CPU will
346 * therefore need to flush the cache-line containing the descriptor, which
347 * will cause all other descriptors in the same cache-line to be flushed
348 * along with it. If one of those descriptors had been written to by the
349 * device those changes (and the associated packet) will be lost.
351 * To work around this, we make use of non-cached memory if available. If
352 * descriptors are mapped uncached there's no need to manually flush them
353 * or invalidate them.
355 * Note that this only applies to descriptors. The packet data buffers do
356 * not have the same constraints since they are 1536 bytes large, so they
357 * are unlikely to share cache-lines.
359 static void *eqos_alloc_descs(unsigned int num)
361 #ifdef CONFIG_SYS_NONCACHED_MEMORY
362 return (void *)noncached_alloc(EQOS_DESCRIPTORS_SIZE,
363 EQOS_DESCRIPTOR_ALIGN);
365 return memalign(EQOS_DESCRIPTOR_ALIGN, EQOS_DESCRIPTORS_SIZE);
369 static void eqos_free_descs(void *descs)
371 #ifdef CONFIG_SYS_NONCACHED_MEMORY
372 /* FIXME: noncached_alloc() has no opposite */
378 static void eqos_inval_desc_tegra186(void *desc)
380 #ifndef CONFIG_SYS_NONCACHED_MEMORY
381 unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
382 unsigned long end = ALIGN(start + EQOS_DESCRIPTOR_SIZE,
385 invalidate_dcache_range(start, end);
389 static void eqos_inval_desc_generic(void *desc)
391 #ifndef CONFIG_SYS_NONCACHED_MEMORY
392 unsigned long start = rounddown((unsigned long)desc, ARCH_DMA_MINALIGN);
393 unsigned long end = roundup((unsigned long)desc + EQOS_DESCRIPTOR_SIZE,
396 invalidate_dcache_range(start, end);
400 static void eqos_flush_desc_tegra186(void *desc)
402 #ifndef CONFIG_SYS_NONCACHED_MEMORY
403 flush_cache((unsigned long)desc, EQOS_DESCRIPTOR_SIZE);
407 static void eqos_flush_desc_generic(void *desc)
409 #ifndef CONFIG_SYS_NONCACHED_MEMORY
410 unsigned long start = rounddown((unsigned long)desc, ARCH_DMA_MINALIGN);
411 unsigned long end = roundup((unsigned long)desc + EQOS_DESCRIPTOR_SIZE,
414 flush_dcache_range(start, end);
418 static void eqos_inval_buffer_tegra186(void *buf, size_t size)
420 unsigned long start = (unsigned long)buf & ~(ARCH_DMA_MINALIGN - 1);
421 unsigned long end = ALIGN(start + size, ARCH_DMA_MINALIGN);
423 invalidate_dcache_range(start, end);
426 static void eqos_inval_buffer_generic(void *buf, size_t size)
428 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
429 unsigned long end = roundup((unsigned long)buf + size,
432 invalidate_dcache_range(start, end);
435 static void eqos_flush_buffer_tegra186(void *buf, size_t size)
437 flush_cache((unsigned long)buf, size);
440 static void eqos_flush_buffer_generic(void *buf, size_t size)
442 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
443 unsigned long end = roundup((unsigned long)buf + size,
446 flush_dcache_range(start, end);
449 static int eqos_mdio_wait_idle(struct eqos_priv *eqos)
451 return wait_for_bit_le32(&eqos->mac_regs->mdio_address,
452 EQOS_MAC_MDIO_ADDRESS_GB, false,
456 static int eqos_mdio_read(struct mii_dev *bus, int mdio_addr, int mdio_devad,
459 struct eqos_priv *eqos = bus->priv;
463 debug("%s(dev=%p, addr=%x, reg=%d):\n", __func__, eqos->dev, mdio_addr,
466 ret = eqos_mdio_wait_idle(eqos);
468 pr_err("MDIO not idle at entry");
472 val = readl(&eqos->mac_regs->mdio_address);
473 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
474 EQOS_MAC_MDIO_ADDRESS_C45E;
475 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
476 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
477 (eqos->config->config_mac_mdio <<
478 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
479 (EQOS_MAC_MDIO_ADDRESS_GOC_READ <<
480 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
481 EQOS_MAC_MDIO_ADDRESS_GB;
482 writel(val, &eqos->mac_regs->mdio_address);
484 udelay(eqos->config->mdio_wait);
486 ret = eqos_mdio_wait_idle(eqos);
488 pr_err("MDIO read didn't complete");
492 val = readl(&eqos->mac_regs->mdio_data);
493 val &= EQOS_MAC_MDIO_DATA_GD_MASK;
495 debug("%s: val=%x\n", __func__, val);
500 static int eqos_mdio_write(struct mii_dev *bus, int mdio_addr, int mdio_devad,
501 int mdio_reg, u16 mdio_val)
503 struct eqos_priv *eqos = bus->priv;
507 debug("%s(dev=%p, addr=%x, reg=%d, val=%x):\n", __func__, eqos->dev,
508 mdio_addr, mdio_reg, mdio_val);
510 ret = eqos_mdio_wait_idle(eqos);
512 pr_err("MDIO not idle at entry");
516 writel(mdio_val, &eqos->mac_regs->mdio_data);
518 val = readl(&eqos->mac_regs->mdio_address);
519 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
520 EQOS_MAC_MDIO_ADDRESS_C45E;
521 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
522 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
523 (eqos->config->config_mac_mdio <<
524 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
525 (EQOS_MAC_MDIO_ADDRESS_GOC_WRITE <<
526 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
527 EQOS_MAC_MDIO_ADDRESS_GB;
528 writel(val, &eqos->mac_regs->mdio_address);
530 udelay(eqos->config->mdio_wait);
532 ret = eqos_mdio_wait_idle(eqos);
534 pr_err("MDIO read didn't complete");
541 static int eqos_start_clks_tegra186(struct udevice *dev)
544 struct eqos_priv *eqos = dev_get_priv(dev);
547 debug("%s(dev=%p):\n", __func__, dev);
549 ret = clk_enable(&eqos->clk_slave_bus);
551 pr_err("clk_enable(clk_slave_bus) failed: %d", ret);
555 ret = clk_enable(&eqos->clk_master_bus);
557 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
558 goto err_disable_clk_slave_bus;
561 ret = clk_enable(&eqos->clk_rx);
563 pr_err("clk_enable(clk_rx) failed: %d", ret);
564 goto err_disable_clk_master_bus;
567 ret = clk_enable(&eqos->clk_ptp_ref);
569 pr_err("clk_enable(clk_ptp_ref) failed: %d", ret);
570 goto err_disable_clk_rx;
573 ret = clk_set_rate(&eqos->clk_ptp_ref, 125 * 1000 * 1000);
575 pr_err("clk_set_rate(clk_ptp_ref) failed: %d", ret);
576 goto err_disable_clk_ptp_ref;
579 ret = clk_enable(&eqos->clk_tx);
581 pr_err("clk_enable(clk_tx) failed: %d", ret);
582 goto err_disable_clk_ptp_ref;
586 debug("%s: OK\n", __func__);
590 err_disable_clk_ptp_ref:
591 clk_disable(&eqos->clk_ptp_ref);
593 clk_disable(&eqos->clk_rx);
594 err_disable_clk_master_bus:
595 clk_disable(&eqos->clk_master_bus);
596 err_disable_clk_slave_bus:
597 clk_disable(&eqos->clk_slave_bus);
599 debug("%s: FAILED: %d\n", __func__, ret);
604 static int eqos_start_clks_stm32(struct udevice *dev)
607 struct eqos_priv *eqos = dev_get_priv(dev);
610 debug("%s(dev=%p):\n", __func__, dev);
612 ret = clk_enable(&eqos->clk_master_bus);
614 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
618 ret = clk_enable(&eqos->clk_rx);
620 pr_err("clk_enable(clk_rx) failed: %d", ret);
621 goto err_disable_clk_master_bus;
624 ret = clk_enable(&eqos->clk_tx);
626 pr_err("clk_enable(clk_tx) failed: %d", ret);
627 goto err_disable_clk_rx;
630 if (clk_valid(&eqos->clk_ck)) {
631 ret = clk_enable(&eqos->clk_ck);
633 pr_err("clk_enable(clk_ck) failed: %d", ret);
634 goto err_disable_clk_tx;
639 debug("%s: OK\n", __func__);
644 clk_disable(&eqos->clk_tx);
646 clk_disable(&eqos->clk_rx);
647 err_disable_clk_master_bus:
648 clk_disable(&eqos->clk_master_bus);
650 debug("%s: FAILED: %d\n", __func__, ret);
655 static int eqos_start_clks_imx(struct udevice *dev)
660 static void eqos_stop_clks_tegra186(struct udevice *dev)
663 struct eqos_priv *eqos = dev_get_priv(dev);
665 debug("%s(dev=%p):\n", __func__, dev);
667 clk_disable(&eqos->clk_tx);
668 clk_disable(&eqos->clk_ptp_ref);
669 clk_disable(&eqos->clk_rx);
670 clk_disable(&eqos->clk_master_bus);
671 clk_disable(&eqos->clk_slave_bus);
674 debug("%s: OK\n", __func__);
677 static void eqos_stop_clks_stm32(struct udevice *dev)
680 struct eqos_priv *eqos = dev_get_priv(dev);
682 debug("%s(dev=%p):\n", __func__, dev);
684 clk_disable(&eqos->clk_tx);
685 clk_disable(&eqos->clk_rx);
686 clk_disable(&eqos->clk_master_bus);
687 if (clk_valid(&eqos->clk_ck))
688 clk_disable(&eqos->clk_ck);
691 debug("%s: OK\n", __func__);
694 static void eqos_stop_clks_imx(struct udevice *dev)
699 static int eqos_start_resets_tegra186(struct udevice *dev)
701 struct eqos_priv *eqos = dev_get_priv(dev);
704 debug("%s(dev=%p):\n", __func__, dev);
706 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
708 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d", ret);
714 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
716 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d", ret);
720 ret = reset_assert(&eqos->reset_ctl);
722 pr_err("reset_assert() failed: %d", ret);
728 ret = reset_deassert(&eqos->reset_ctl);
730 pr_err("reset_deassert() failed: %d", ret);
734 debug("%s: OK\n", __func__);
738 static int eqos_start_resets_stm32(struct udevice *dev)
740 struct eqos_priv *eqos = dev_get_priv(dev);
743 debug("%s(dev=%p):\n", __func__, dev);
744 if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
745 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
747 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d",
754 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
756 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d",
761 debug("%s: OK\n", __func__);
766 static int eqos_start_resets_imx(struct udevice *dev)
771 static int eqos_stop_resets_tegra186(struct udevice *dev)
773 struct eqos_priv *eqos = dev_get_priv(dev);
775 reset_assert(&eqos->reset_ctl);
776 dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
781 static int eqos_stop_resets_stm32(struct udevice *dev)
783 struct eqos_priv *eqos = dev_get_priv(dev);
786 if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
787 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
789 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d",
798 static int eqos_stop_resets_imx(struct udevice *dev)
803 static int eqos_calibrate_pads_tegra186(struct udevice *dev)
805 struct eqos_priv *eqos = dev_get_priv(dev);
808 debug("%s(dev=%p):\n", __func__, dev);
810 setbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
811 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
815 setbits_le32(&eqos->tegra186_regs->auto_cal_config,
816 EQOS_AUTO_CAL_CONFIG_START | EQOS_AUTO_CAL_CONFIG_ENABLE);
818 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
819 EQOS_AUTO_CAL_STATUS_ACTIVE, true, 10, false);
821 pr_err("calibrate didn't start");
825 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
826 EQOS_AUTO_CAL_STATUS_ACTIVE, false, 10, false);
828 pr_err("calibrate didn't finish");
835 clrbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
836 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
838 debug("%s: returns %d\n", __func__, ret);
843 static int eqos_disable_calibration_tegra186(struct udevice *dev)
845 struct eqos_priv *eqos = dev_get_priv(dev);
847 debug("%s(dev=%p):\n", __func__, dev);
849 clrbits_le32(&eqos->tegra186_regs->auto_cal_config,
850 EQOS_AUTO_CAL_CONFIG_ENABLE);
855 static ulong eqos_get_tick_clk_rate_tegra186(struct udevice *dev)
858 struct eqos_priv *eqos = dev_get_priv(dev);
860 return clk_get_rate(&eqos->clk_slave_bus);
866 static ulong eqos_get_tick_clk_rate_stm32(struct udevice *dev)
869 struct eqos_priv *eqos = dev_get_priv(dev);
871 return clk_get_rate(&eqos->clk_master_bus);
877 __weak u32 imx_get_eqos_csr_clk(void)
879 return 100 * 1000000;
881 __weak int imx_eqos_txclk_set_rate(unsigned long rate)
886 static ulong eqos_get_tick_clk_rate_imx(struct udevice *dev)
888 return imx_get_eqos_csr_clk();
891 static int eqos_calibrate_pads_stm32(struct udevice *dev)
896 static int eqos_calibrate_pads_imx(struct udevice *dev)
901 static int eqos_disable_calibration_stm32(struct udevice *dev)
906 static int eqos_disable_calibration_imx(struct udevice *dev)
911 static int eqos_set_full_duplex(struct udevice *dev)
913 struct eqos_priv *eqos = dev_get_priv(dev);
915 debug("%s(dev=%p):\n", __func__, dev);
917 setbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
922 static int eqos_set_half_duplex(struct udevice *dev)
924 struct eqos_priv *eqos = dev_get_priv(dev);
926 debug("%s(dev=%p):\n", __func__, dev);
928 clrbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
930 /* WAR: Flush TX queue when switching to half-duplex */
931 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
932 EQOS_MTL_TXQ0_OPERATION_MODE_FTQ);
937 static int eqos_set_gmii_speed(struct udevice *dev)
939 struct eqos_priv *eqos = dev_get_priv(dev);
941 debug("%s(dev=%p):\n", __func__, dev);
943 clrbits_le32(&eqos->mac_regs->configuration,
944 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
949 static int eqos_set_mii_speed_100(struct udevice *dev)
951 struct eqos_priv *eqos = dev_get_priv(dev);
953 debug("%s(dev=%p):\n", __func__, dev);
955 setbits_le32(&eqos->mac_regs->configuration,
956 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
961 static int eqos_set_mii_speed_10(struct udevice *dev)
963 struct eqos_priv *eqos = dev_get_priv(dev);
965 debug("%s(dev=%p):\n", __func__, dev);
967 clrsetbits_le32(&eqos->mac_regs->configuration,
968 EQOS_MAC_CONFIGURATION_FES, EQOS_MAC_CONFIGURATION_PS);
973 static int eqos_set_tx_clk_speed_tegra186(struct udevice *dev)
976 struct eqos_priv *eqos = dev_get_priv(dev);
980 debug("%s(dev=%p):\n", __func__, dev);
982 switch (eqos->phy->speed) {
984 rate = 125 * 1000 * 1000;
987 rate = 25 * 1000 * 1000;
990 rate = 2.5 * 1000 * 1000;
993 pr_err("invalid speed %d", eqos->phy->speed);
997 ret = clk_set_rate(&eqos->clk_tx, rate);
999 pr_err("clk_set_rate(tx_clk, %lu) failed: %d", rate, ret);
1007 static int eqos_set_tx_clk_speed_stm32(struct udevice *dev)
1012 static int eqos_set_tx_clk_speed_imx(struct udevice *dev)
1014 struct eqos_priv *eqos = dev_get_priv(dev);
1018 debug("%s(dev=%p):\n", __func__, dev);
1020 switch (eqos->phy->speed) {
1022 rate = 125 * 1000 * 1000;
1025 rate = 25 * 1000 * 1000;
1028 rate = 2.5 * 1000 * 1000;
1031 pr_err("invalid speed %d", eqos->phy->speed);
1035 ret = imx_eqos_txclk_set_rate(rate);
1037 pr_err("imx (tx_clk, %lu) failed: %d", rate, ret);
1044 static int eqos_adjust_link(struct udevice *dev)
1046 struct eqos_priv *eqos = dev_get_priv(dev);
1048 bool en_calibration;
1050 debug("%s(dev=%p):\n", __func__, dev);
1052 if (eqos->phy->duplex)
1053 ret = eqos_set_full_duplex(dev);
1055 ret = eqos_set_half_duplex(dev);
1057 pr_err("eqos_set_*_duplex() failed: %d", ret);
1061 switch (eqos->phy->speed) {
1063 en_calibration = true;
1064 ret = eqos_set_gmii_speed(dev);
1067 en_calibration = true;
1068 ret = eqos_set_mii_speed_100(dev);
1071 en_calibration = false;
1072 ret = eqos_set_mii_speed_10(dev);
1075 pr_err("invalid speed %d", eqos->phy->speed);
1079 pr_err("eqos_set_*mii_speed*() failed: %d", ret);
1083 if (en_calibration) {
1084 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1086 pr_err("eqos_calibrate_pads() failed: %d",
1091 ret = eqos->config->ops->eqos_disable_calibration(dev);
1093 pr_err("eqos_disable_calibration() failed: %d",
1098 ret = eqos->config->ops->eqos_set_tx_clk_speed(dev);
1100 pr_err("eqos_set_tx_clk_speed() failed: %d", ret);
1107 static int eqos_write_hwaddr(struct udevice *dev)
1109 struct eth_pdata *plat = dev_get_platdata(dev);
1110 struct eqos_priv *eqos = dev_get_priv(dev);
1114 * This function may be called before start() or after stop(). At that
1115 * time, on at least some configurations of the EQoS HW, all clocks to
1116 * the EQoS HW block will be stopped, and a reset signal applied. If
1117 * any register access is attempted in this state, bus timeouts or CPU
1118 * hangs may occur. This check prevents that.
1120 * A simple solution to this problem would be to not implement
1121 * write_hwaddr(), since start() always writes the MAC address into HW
1122 * anyway. However, it is desirable to implement write_hwaddr() to
1123 * support the case of SW that runs subsequent to U-Boot which expects
1124 * the MAC address to already be programmed into the EQoS registers,
1125 * which must happen irrespective of whether the U-Boot user (or
1126 * scripts) actually made use of the EQoS device, and hence
1127 * irrespective of whether start() was ever called.
1129 * Note that this requirement by subsequent SW is not valid for
1130 * Tegra186, and is likely not valid for any non-PCI instantiation of
1131 * the EQoS HW block. This function is implemented solely as
1132 * future-proofing with the expectation the driver will eventually be
1133 * ported to some system where the expectation above is true.
1135 if (!eqos->config->reg_access_always_ok && !eqos->reg_access_ok)
1138 /* Update the MAC address */
1139 val = (plat->enetaddr[5] << 8) |
1140 (plat->enetaddr[4]);
1141 writel(val, &eqos->mac_regs->address0_high);
1142 val = (plat->enetaddr[3] << 24) |
1143 (plat->enetaddr[2] << 16) |
1144 (plat->enetaddr[1] << 8) |
1145 (plat->enetaddr[0]);
1146 writel(val, &eqos->mac_regs->address0_low);
1151 static int eqos_read_rom_hwaddr(struct udevice *dev)
1153 struct eth_pdata *pdata = dev_get_platdata(dev);
1155 #ifdef CONFIG_ARCH_IMX8M
1156 imx_get_mac_from_fuse(dev->req_seq, pdata->enetaddr);
1158 return !is_valid_ethaddr(pdata->enetaddr);
1161 static int eqos_start(struct udevice *dev)
1163 struct eqos_priv *eqos = dev_get_priv(dev);
1166 u32 val, tx_fifo_sz, rx_fifo_sz, tqs, rqs, pbl;
1169 debug("%s(dev=%p):\n", __func__, dev);
1171 eqos->tx_desc_idx = 0;
1172 eqos->rx_desc_idx = 0;
1174 ret = eqos->config->ops->eqos_start_clks(dev);
1176 pr_err("eqos_start_clks() failed: %d", ret);
1180 ret = eqos->config->ops->eqos_start_resets(dev);
1182 pr_err("eqos_start_resets() failed: %d", ret);
1188 eqos->reg_access_ok = true;
1190 ret = wait_for_bit_le32(&eqos->dma_regs->mode,
1191 EQOS_DMA_MODE_SWR, false,
1192 eqos->config->swr_wait, false);
1194 pr_err("EQOS_DMA_MODE_SWR stuck");
1195 goto err_stop_resets;
1198 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1200 pr_err("eqos_calibrate_pads() failed: %d", ret);
1201 goto err_stop_resets;
1203 rate = eqos->config->ops->eqos_get_tick_clk_rate(dev);
1205 val = (rate / 1000000) - 1;
1206 writel(val, &eqos->mac_regs->us_tic_counter);
1209 * if PHY was already connected and configured,
1210 * don't need to reconnect/reconfigure again
1214 #ifdef CONFIG_DM_ETH_PHY
1215 addr = eth_phy_get_addr(dev);
1217 #ifdef DWC_NET_PHYADDR
1218 addr = DWC_NET_PHYADDR;
1220 eqos->phy = phy_connect(eqos->mii, addr, dev,
1221 eqos->config->interface(dev));
1223 pr_err("phy_connect() failed");
1224 goto err_stop_resets;
1227 if (eqos->max_speed) {
1228 ret = phy_set_supported(eqos->phy, eqos->max_speed);
1230 pr_err("phy_set_supported() failed: %d", ret);
1231 goto err_shutdown_phy;
1235 ret = phy_config(eqos->phy);
1237 pr_err("phy_config() failed: %d", ret);
1238 goto err_shutdown_phy;
1242 ret = phy_startup(eqos->phy);
1244 pr_err("phy_startup() failed: %d", ret);
1245 goto err_shutdown_phy;
1248 if (!eqos->phy->link) {
1250 goto err_shutdown_phy;
1253 ret = eqos_adjust_link(dev);
1255 pr_err("eqos_adjust_link() failed: %d", ret);
1256 goto err_shutdown_phy;
1260 writel(0x60, &eqos->mtl_regs->txq0_quantum_weight - 0x100);
1262 /* Enable Store and Forward mode for TX */
1263 /* Program Tx operating mode */
1264 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1265 EQOS_MTL_TXQ0_OPERATION_MODE_TSF |
1266 (EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED <<
1267 EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT));
1269 /* Transmit Queue weight */
1270 writel(0x10, &eqos->mtl_regs->txq0_quantum_weight);
1272 /* Enable Store and Forward mode for RX, since no jumbo frame */
1273 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1274 EQOS_MTL_RXQ0_OPERATION_MODE_RSF |
1275 EQOS_MTL_RXQ0_OPERATION_MODE_FEP |
1276 EQOS_MTL_RXQ0_OPERATION_MODE_FUP);
1278 /* Transmit/Receive queue fifo size; use all RAM for 1 queue */
1279 val = readl(&eqos->mac_regs->hw_feature1);
1280 tx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT) &
1281 EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK;
1282 rx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT) &
1283 EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK;
1286 * r/tx_fifo_sz is encoded as log2(n / 128). Undo that by shifting.
1287 * r/tqs is encoded as (n / 256) - 1.
1289 tqs = (128 << tx_fifo_sz) / 256 - 1;
1290 rqs = (128 << rx_fifo_sz) / 256 - 1;
1292 clrsetbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1293 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK <<
1294 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT,
1295 tqs << EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT);
1296 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1297 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK <<
1298 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT,
1299 rqs << EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT);
1301 /* Flow control used only if each channel gets 4KB or more FIFO */
1302 if (rqs >= ((4096 / 256) - 1)) {
1305 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1306 EQOS_MTL_RXQ0_OPERATION_MODE_EHFC);
1309 * Set Threshold for Activating Flow Contol space for min 2
1310 * frames ie, (1500 * 1) = 1500 bytes.
1312 * Set Threshold for Deactivating Flow Contol for space of
1313 * min 1 frame (frame size 1500bytes) in receive fifo
1315 if (rqs == ((4096 / 256) - 1)) {
1317 * This violates the above formula because of FIFO size
1318 * limit therefore overflow may occur inspite of this.
1320 rfd = 0x3; /* Full-3K */
1321 rfa = 0x1; /* Full-1.5K */
1322 } else if (rqs == ((8192 / 256) - 1)) {
1323 rfd = 0x6; /* Full-4K */
1324 rfa = 0xa; /* Full-6K */
1325 } else if (rqs == ((16384 / 256) - 1)) {
1326 rfd = 0x6; /* Full-4K */
1327 rfa = 0x12; /* Full-10K */
1329 rfd = 0x6; /* Full-4K */
1330 rfa = 0x1E; /* Full-16K */
1333 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1334 (EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK <<
1335 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1336 (EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK <<
1337 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT),
1339 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1341 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT));
1346 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1347 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1348 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1349 eqos->config->config_mac <<
1350 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1352 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1353 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1354 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1356 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1358 /* Multicast and Broadcast Queue Enable */
1359 setbits_le32(&eqos->mac_regs->unused_0a4,
1361 /* enable promise mode */
1362 setbits_le32(&eqos->mac_regs->unused_004[1],
1365 /* Set TX flow control parameters */
1366 /* Set Pause Time */
1367 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1368 0xffff << EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT);
1369 /* Assign priority for TX flow control */
1370 clrbits_le32(&eqos->mac_regs->txq_prty_map0,
1371 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK <<
1372 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT);
1373 /* Assign priority for RX flow control */
1374 clrbits_le32(&eqos->mac_regs->rxq_ctrl2,
1375 EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK <<
1376 EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT);
1377 /* Enable flow control */
1378 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1379 EQOS_MAC_Q0_TX_FLOW_CTRL_TFE);
1380 setbits_le32(&eqos->mac_regs->rx_flow_ctrl,
1381 EQOS_MAC_RX_FLOW_CTRL_RFE);
1383 clrsetbits_le32(&eqos->mac_regs->configuration,
1384 EQOS_MAC_CONFIGURATION_GPSLCE |
1385 EQOS_MAC_CONFIGURATION_WD |
1386 EQOS_MAC_CONFIGURATION_JD |
1387 EQOS_MAC_CONFIGURATION_JE,
1388 EQOS_MAC_CONFIGURATION_CST |
1389 EQOS_MAC_CONFIGURATION_ACS);
1391 eqos_write_hwaddr(dev);
1395 /* Enable OSP mode */
1396 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1397 EQOS_DMA_CH0_TX_CONTROL_OSP);
1399 /* RX buffer size. Must be a multiple of bus width */
1400 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1401 EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK <<
1402 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT,
1403 EQOS_MAX_PACKET_SIZE <<
1404 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT);
1406 setbits_le32(&eqos->dma_regs->ch0_control,
1407 EQOS_DMA_CH0_CONTROL_PBLX8);
1410 * Burst length must be < 1/2 FIFO size.
1411 * FIFO size in tqs is encoded as (n / 256) - 1.
1412 * Each burst is n * 8 (PBLX8) * 16 (AXI width) == 128 bytes.
1413 * Half of n * 256 is n * 128, so pbl == tqs, modulo the -1.
1418 clrsetbits_le32(&eqos->dma_regs->ch0_tx_control,
1419 EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK <<
1420 EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT,
1421 pbl << EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT);
1423 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1424 EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK <<
1425 EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT,
1426 8 << EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT);
1428 /* DMA performance configuration */
1429 val = (2 << EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT) |
1430 EQOS_DMA_SYSBUS_MODE_EAME | EQOS_DMA_SYSBUS_MODE_BLEN16 |
1431 EQOS_DMA_SYSBUS_MODE_BLEN8 | EQOS_DMA_SYSBUS_MODE_BLEN4;
1432 writel(val, &eqos->dma_regs->sysbus_mode);
1434 /* Set up descriptors */
1436 memset(eqos->descs, 0, EQOS_DESCRIPTORS_SIZE);
1437 for (i = 0; i < EQOS_DESCRIPTORS_RX; i++) {
1438 struct eqos_desc *rx_desc = &(eqos->rx_descs[i]);
1439 rx_desc->des0 = (u32)(ulong)(eqos->rx_dma_buf +
1440 (i * EQOS_MAX_PACKET_SIZE));
1441 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1443 eqos->config->ops->eqos_flush_desc(rx_desc);
1444 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf +
1445 (i * EQOS_MAX_PACKET_SIZE),
1446 EQOS_MAX_PACKET_SIZE);
1449 writel(0, &eqos->dma_regs->ch0_txdesc_list_haddress);
1450 writel((ulong)eqos->tx_descs, &eqos->dma_regs->ch0_txdesc_list_address);
1451 writel(EQOS_DESCRIPTORS_TX - 1,
1452 &eqos->dma_regs->ch0_txdesc_ring_length);
1454 writel(0, &eqos->dma_regs->ch0_rxdesc_list_haddress);
1455 writel((ulong)eqos->rx_descs, &eqos->dma_regs->ch0_rxdesc_list_address);
1456 writel(EQOS_DESCRIPTORS_RX - 1,
1457 &eqos->dma_regs->ch0_rxdesc_ring_length);
1459 /* Enable everything */
1460 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1461 EQOS_DMA_CH0_TX_CONTROL_ST);
1462 setbits_le32(&eqos->dma_regs->ch0_rx_control,
1463 EQOS_DMA_CH0_RX_CONTROL_SR);
1464 setbits_le32(&eqos->mac_regs->configuration,
1465 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1467 /* TX tail pointer not written until we need to TX a packet */
1469 * Point RX tail pointer at last descriptor. Ideally, we'd point at the
1470 * first descriptor, implying all descriptors were available. However,
1471 * that's not distinguishable from none of the descriptors being
1474 last_rx_desc = (ulong)&(eqos->rx_descs[(EQOS_DESCRIPTORS_RX - 1)]);
1475 writel(last_rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1477 eqos->started = true;
1479 debug("%s: OK\n", __func__);
1483 phy_shutdown(eqos->phy);
1485 eqos->config->ops->eqos_stop_resets(dev);
1487 eqos->config->ops->eqos_stop_clks(dev);
1489 pr_err("FAILED: %d", ret);
1493 static void eqos_stop(struct udevice *dev)
1495 struct eqos_priv *eqos = dev_get_priv(dev);
1498 debug("%s(dev=%p):\n", __func__, dev);
1502 eqos->started = false;
1503 eqos->reg_access_ok = false;
1505 /* Disable TX DMA */
1506 clrbits_le32(&eqos->dma_regs->ch0_tx_control,
1507 EQOS_DMA_CH0_TX_CONTROL_ST);
1509 /* Wait for TX all packets to drain out of MTL */
1510 for (i = 0; i < 1000000; i++) {
1511 u32 val = readl(&eqos->mtl_regs->txq0_debug);
1512 u32 trcsts = (val >> EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT) &
1513 EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK;
1514 u32 txqsts = val & EQOS_MTL_TXQ0_DEBUG_TXQSTS;
1515 if ((trcsts != 1) && (!txqsts))
1519 /* Turn off MAC TX and RX */
1520 clrbits_le32(&eqos->mac_regs->configuration,
1521 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1523 /* Wait for all RX packets to drain out of MTL */
1524 for (i = 0; i < 1000000; i++) {
1525 u32 val = readl(&eqos->mtl_regs->rxq0_debug);
1526 u32 prxq = (val >> EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT) &
1527 EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK;
1528 u32 rxqsts = (val >> EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT) &
1529 EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK;
1530 if ((!prxq) && (!rxqsts))
1534 /* Turn off RX DMA */
1535 clrbits_le32(&eqos->dma_regs->ch0_rx_control,
1536 EQOS_DMA_CH0_RX_CONTROL_SR);
1539 phy_shutdown(eqos->phy);
1541 eqos->config->ops->eqos_stop_resets(dev);
1542 eqos->config->ops->eqos_stop_clks(dev);
1544 debug("%s: OK\n", __func__);
1547 static int eqos_send(struct udevice *dev, void *packet, int length)
1549 struct eqos_priv *eqos = dev_get_priv(dev);
1550 struct eqos_desc *tx_desc;
1553 debug("%s(dev=%p, packet=%p, length=%d):\n", __func__, dev, packet,
1556 memcpy(eqos->tx_dma_buf, packet, length);
1557 eqos->config->ops->eqos_flush_buffer(eqos->tx_dma_buf, length);
1559 tx_desc = &(eqos->tx_descs[eqos->tx_desc_idx]);
1560 eqos->tx_desc_idx++;
1561 eqos->tx_desc_idx %= EQOS_DESCRIPTORS_TX;
1563 tx_desc->des0 = (ulong)eqos->tx_dma_buf;
1565 tx_desc->des2 = length;
1567 * Make sure that if HW sees the _OWN write below, it will see all the
1568 * writes to the rest of the descriptor too.
1571 tx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_FD | EQOS_DESC3_LD | length;
1572 eqos->config->ops->eqos_flush_desc(tx_desc);
1574 writel((ulong)(&(eqos->tx_descs[eqos->tx_desc_idx])),
1575 &eqos->dma_regs->ch0_txdesc_tail_pointer);
1577 for (i = 0; i < 1000000; i++) {
1578 eqos->config->ops->eqos_inval_desc(tx_desc);
1579 if (!(readl(&tx_desc->des3) & EQOS_DESC3_OWN))
1584 debug("%s: TX timeout\n", __func__);
1589 static int eqos_recv(struct udevice *dev, int flags, uchar **packetp)
1591 struct eqos_priv *eqos = dev_get_priv(dev);
1592 struct eqos_desc *rx_desc;
1595 debug("%s(dev=%p, flags=%x):\n", __func__, dev, flags);
1597 rx_desc = &(eqos->rx_descs[eqos->rx_desc_idx]);
1598 eqos->config->ops->eqos_inval_desc(rx_desc);
1599 if (rx_desc->des3 & EQOS_DESC3_OWN) {
1600 debug("%s: RX packet not available\n", __func__);
1604 *packetp = eqos->rx_dma_buf +
1605 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1606 length = rx_desc->des3 & 0x7fff;
1607 debug("%s: *packetp=%p, length=%d\n", __func__, *packetp, length);
1609 eqos->config->ops->eqos_inval_buffer(*packetp, length);
1614 static int eqos_free_pkt(struct udevice *dev, uchar *packet, int length)
1616 struct eqos_priv *eqos = dev_get_priv(dev);
1617 uchar *packet_expected;
1618 struct eqos_desc *rx_desc;
1620 debug("%s(packet=%p, length=%d)\n", __func__, packet, length);
1622 packet_expected = eqos->rx_dma_buf +
1623 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1624 if (packet != packet_expected) {
1625 debug("%s: Unexpected packet (expected %p)\n", __func__,
1630 eqos->config->ops->eqos_inval_buffer(packet, length);
1632 rx_desc = &(eqos->rx_descs[eqos->rx_desc_idx]);
1636 eqos->config->ops->eqos_flush_desc(rx_desc);
1637 eqos->config->ops->eqos_inval_buffer(packet, length);
1638 rx_desc->des0 = (u32)(ulong)packet;
1642 * Make sure that if HW sees the _OWN write below, it will see all the
1643 * writes to the rest of the descriptor too.
1646 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1647 eqos->config->ops->eqos_flush_desc(rx_desc);
1649 writel((ulong)rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1651 eqos->rx_desc_idx++;
1652 eqos->rx_desc_idx %= EQOS_DESCRIPTORS_RX;
1657 static int eqos_probe_resources_core(struct udevice *dev)
1659 struct eqos_priv *eqos = dev_get_priv(dev);
1662 debug("%s(dev=%p):\n", __func__, dev);
1664 eqos->descs = eqos_alloc_descs(EQOS_DESCRIPTORS_TX +
1665 EQOS_DESCRIPTORS_RX);
1667 debug("%s: eqos_alloc_descs() failed\n", __func__);
1671 eqos->tx_descs = (struct eqos_desc *)eqos->descs;
1672 eqos->rx_descs = (eqos->tx_descs + EQOS_DESCRIPTORS_TX);
1673 debug("%s: tx_descs=%p, rx_descs=%p\n", __func__, eqos->tx_descs,
1676 eqos->tx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_MAX_PACKET_SIZE);
1677 if (!eqos->tx_dma_buf) {
1678 debug("%s: memalign(tx_dma_buf) failed\n", __func__);
1680 goto err_free_descs;
1682 debug("%s: tx_dma_buf=%p\n", __func__, eqos->tx_dma_buf);
1684 eqos->rx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_RX_BUFFER_SIZE);
1685 if (!eqos->rx_dma_buf) {
1686 debug("%s: memalign(rx_dma_buf) failed\n", __func__);
1688 goto err_free_tx_dma_buf;
1690 debug("%s: rx_dma_buf=%p\n", __func__, eqos->rx_dma_buf);
1692 eqos->rx_pkt = malloc(EQOS_MAX_PACKET_SIZE);
1693 if (!eqos->rx_pkt) {
1694 debug("%s: malloc(rx_pkt) failed\n", __func__);
1696 goto err_free_rx_dma_buf;
1698 debug("%s: rx_pkt=%p\n", __func__, eqos->rx_pkt);
1700 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf,
1701 EQOS_MAX_PACKET_SIZE * EQOS_DESCRIPTORS_RX);
1703 debug("%s: OK\n", __func__);
1706 err_free_rx_dma_buf:
1707 free(eqos->rx_dma_buf);
1708 err_free_tx_dma_buf:
1709 free(eqos->tx_dma_buf);
1711 eqos_free_descs(eqos->descs);
1714 debug("%s: returns %d\n", __func__, ret);
1718 static int eqos_remove_resources_core(struct udevice *dev)
1720 struct eqos_priv *eqos = dev_get_priv(dev);
1722 debug("%s(dev=%p):\n", __func__, dev);
1725 free(eqos->rx_dma_buf);
1726 free(eqos->tx_dma_buf);
1727 eqos_free_descs(eqos->descs);
1729 debug("%s: OK\n", __func__);
1733 static int eqos_probe_resources_tegra186(struct udevice *dev)
1735 struct eqos_priv *eqos = dev_get_priv(dev);
1738 debug("%s(dev=%p):\n", __func__, dev);
1740 ret = reset_get_by_name(dev, "eqos", &eqos->reset_ctl);
1742 pr_err("reset_get_by_name(rst) failed: %d", ret);
1746 ret = gpio_request_by_name(dev, "phy-reset-gpios", 0,
1747 &eqos->phy_reset_gpio,
1748 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
1750 pr_err("gpio_request_by_name(phy reset) failed: %d", ret);
1751 goto err_free_reset_eqos;
1754 ret = clk_get_by_name(dev, "slave_bus", &eqos->clk_slave_bus);
1756 pr_err("clk_get_by_name(slave_bus) failed: %d", ret);
1757 goto err_free_gpio_phy_reset;
1760 ret = clk_get_by_name(dev, "master_bus", &eqos->clk_master_bus);
1762 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1763 goto err_free_clk_slave_bus;
1766 ret = clk_get_by_name(dev, "rx", &eqos->clk_rx);
1768 pr_err("clk_get_by_name(rx) failed: %d", ret);
1769 goto err_free_clk_master_bus;
1772 ret = clk_get_by_name(dev, "ptp_ref", &eqos->clk_ptp_ref);
1774 pr_err("clk_get_by_name(ptp_ref) failed: %d", ret);
1775 goto err_free_clk_rx;
1779 ret = clk_get_by_name(dev, "tx", &eqos->clk_tx);
1781 pr_err("clk_get_by_name(tx) failed: %d", ret);
1782 goto err_free_clk_ptp_ref;
1785 debug("%s: OK\n", __func__);
1788 err_free_clk_ptp_ref:
1789 clk_free(&eqos->clk_ptp_ref);
1791 clk_free(&eqos->clk_rx);
1792 err_free_clk_master_bus:
1793 clk_free(&eqos->clk_master_bus);
1794 err_free_clk_slave_bus:
1795 clk_free(&eqos->clk_slave_bus);
1796 err_free_gpio_phy_reset:
1797 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1798 err_free_reset_eqos:
1799 reset_free(&eqos->reset_ctl);
1801 debug("%s: returns %d\n", __func__, ret);
1805 /* board-specific Ethernet Interface initializations. */
1806 __weak int board_interface_eth_init(struct udevice *dev,
1807 phy_interface_t interface_type)
1812 static int eqos_probe_resources_stm32(struct udevice *dev)
1814 struct eqos_priv *eqos = dev_get_priv(dev);
1816 phy_interface_t interface;
1817 struct ofnode_phandle_args phandle_args;
1819 debug("%s(dev=%p):\n", __func__, dev);
1821 interface = eqos->config->interface(dev);
1823 if (interface == PHY_INTERFACE_MODE_NONE) {
1824 pr_err("Invalid PHY interface\n");
1828 ret = board_interface_eth_init(dev, interface);
1832 eqos->max_speed = dev_read_u32_default(dev, "max-speed", 0);
1834 ret = clk_get_by_name(dev, "stmmaceth", &eqos->clk_master_bus);
1836 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1840 ret = clk_get_by_name(dev, "mac-clk-rx", &eqos->clk_rx);
1842 pr_err("clk_get_by_name(rx) failed: %d", ret);
1843 goto err_free_clk_master_bus;
1846 ret = clk_get_by_name(dev, "mac-clk-tx", &eqos->clk_tx);
1848 pr_err("clk_get_by_name(tx) failed: %d", ret);
1849 goto err_free_clk_rx;
1852 /* Get ETH_CLK clocks (optional) */
1853 ret = clk_get_by_name(dev, "eth-ck", &eqos->clk_ck);
1855 pr_warn("No phy clock provided %d", ret);
1858 ret = dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
1861 /* search "reset-gpios" in phy node */
1862 ret = gpio_request_by_name_nodev(phandle_args.node,
1864 &eqos->phy_reset_gpio,
1866 GPIOD_IS_OUT_ACTIVE);
1868 pr_warn("gpio_request_by_name(phy reset) not provided %d",
1871 eqos->phyaddr = ofnode_read_u32_default(phandle_args.node,
1875 debug("%s: OK\n", __func__);
1879 clk_free(&eqos->clk_rx);
1880 err_free_clk_master_bus:
1881 clk_free(&eqos->clk_master_bus);
1884 debug("%s: returns %d\n", __func__, ret);
1888 static phy_interface_t eqos_get_interface_stm32(struct udevice *dev)
1890 const char *phy_mode;
1891 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
1893 debug("%s(dev=%p):\n", __func__, dev);
1895 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
1898 interface = phy_get_interface_by_name(phy_mode);
1903 static phy_interface_t eqos_get_interface_tegra186(struct udevice *dev)
1905 return PHY_INTERFACE_MODE_MII;
1908 static int eqos_probe_resources_imx(struct udevice *dev)
1910 struct eqos_priv *eqos = dev_get_priv(dev);
1911 phy_interface_t interface;
1913 debug("%s(dev=%p):\n", __func__, dev);
1915 interface = eqos->config->interface(dev);
1917 if (interface == PHY_INTERFACE_MODE_NONE) {
1918 pr_err("Invalid PHY interface\n");
1922 debug("%s: OK\n", __func__);
1926 static phy_interface_t eqos_get_interface_imx(struct udevice *dev)
1928 const char *phy_mode;
1929 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
1931 debug("%s(dev=%p):\n", __func__, dev);
1933 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
1936 interface = phy_get_interface_by_name(phy_mode);
1941 static int eqos_remove_resources_tegra186(struct udevice *dev)
1943 struct eqos_priv *eqos = dev_get_priv(dev);
1945 debug("%s(dev=%p):\n", __func__, dev);
1948 clk_free(&eqos->clk_tx);
1949 clk_free(&eqos->clk_ptp_ref);
1950 clk_free(&eqos->clk_rx);
1951 clk_free(&eqos->clk_slave_bus);
1952 clk_free(&eqos->clk_master_bus);
1954 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1955 reset_free(&eqos->reset_ctl);
1957 debug("%s: OK\n", __func__);
1961 static int eqos_remove_resources_stm32(struct udevice *dev)
1964 struct eqos_priv *eqos = dev_get_priv(dev);
1966 debug("%s(dev=%p):\n", __func__, dev);
1968 clk_free(&eqos->clk_tx);
1969 clk_free(&eqos->clk_rx);
1970 clk_free(&eqos->clk_master_bus);
1971 if (clk_valid(&eqos->clk_ck))
1972 clk_free(&eqos->clk_ck);
1975 if (dm_gpio_is_valid(&eqos->phy_reset_gpio))
1976 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1978 debug("%s: OK\n", __func__);
1982 static int eqos_remove_resources_imx(struct udevice *dev)
1987 static int eqos_probe(struct udevice *dev)
1989 struct eqos_priv *eqos = dev_get_priv(dev);
1992 debug("%s(dev=%p):\n", __func__, dev);
1995 eqos->config = (void *)dev_get_driver_data(dev);
1997 eqos->regs = devfdt_get_addr(dev);
1998 if (eqos->regs == FDT_ADDR_T_NONE) {
1999 pr_err("devfdt_get_addr() failed");
2002 eqos->mac_regs = (void *)(eqos->regs + EQOS_MAC_REGS_BASE);
2003 eqos->mtl_regs = (void *)(eqos->regs + EQOS_MTL_REGS_BASE);
2004 eqos->dma_regs = (void *)(eqos->regs + EQOS_DMA_REGS_BASE);
2005 eqos->tegra186_regs = (void *)(eqos->regs + EQOS_TEGRA186_REGS_BASE);
2007 ret = eqos_probe_resources_core(dev);
2009 pr_err("eqos_probe_resources_core() failed: %d", ret);
2013 ret = eqos->config->ops->eqos_probe_resources(dev);
2015 pr_err("eqos_probe_resources() failed: %d", ret);
2016 goto err_remove_resources_core;
2019 #ifdef CONFIG_DM_ETH_PHY
2020 eqos->mii = eth_phy_get_mdio_bus(dev);
2023 eqos->mii = mdio_alloc();
2025 pr_err("mdio_alloc() failed");
2027 goto err_remove_resources_tegra;
2029 eqos->mii->read = eqos_mdio_read;
2030 eqos->mii->write = eqos_mdio_write;
2031 eqos->mii->priv = eqos;
2032 strcpy(eqos->mii->name, dev->name);
2034 ret = mdio_register(eqos->mii);
2036 pr_err("mdio_register() failed: %d", ret);
2041 #ifdef CONFIG_DM_ETH_PHY
2042 eth_phy_set_mdio_bus(dev, eqos->mii);
2045 debug("%s: OK\n", __func__);
2049 mdio_free(eqos->mii);
2050 err_remove_resources_tegra:
2051 eqos->config->ops->eqos_remove_resources(dev);
2052 err_remove_resources_core:
2053 eqos_remove_resources_core(dev);
2055 debug("%s: returns %d\n", __func__, ret);
2059 static int eqos_remove(struct udevice *dev)
2061 struct eqos_priv *eqos = dev_get_priv(dev);
2063 debug("%s(dev=%p):\n", __func__, dev);
2065 mdio_unregister(eqos->mii);
2066 mdio_free(eqos->mii);
2067 eqos->config->ops->eqos_remove_resources(dev);
2069 eqos_probe_resources_core(dev);
2071 debug("%s: OK\n", __func__);
2075 static const struct eth_ops eqos_ops = {
2076 .start = eqos_start,
2080 .free_pkt = eqos_free_pkt,
2081 .write_hwaddr = eqos_write_hwaddr,
2082 .read_rom_hwaddr = eqos_read_rom_hwaddr,
2085 static struct eqos_ops eqos_tegra186_ops = {
2086 .eqos_inval_desc = eqos_inval_desc_tegra186,
2087 .eqos_flush_desc = eqos_flush_desc_tegra186,
2088 .eqos_inval_buffer = eqos_inval_buffer_tegra186,
2089 .eqos_flush_buffer = eqos_flush_buffer_tegra186,
2090 .eqos_probe_resources = eqos_probe_resources_tegra186,
2091 .eqos_remove_resources = eqos_remove_resources_tegra186,
2092 .eqos_stop_resets = eqos_stop_resets_tegra186,
2093 .eqos_start_resets = eqos_start_resets_tegra186,
2094 .eqos_stop_clks = eqos_stop_clks_tegra186,
2095 .eqos_start_clks = eqos_start_clks_tegra186,
2096 .eqos_calibrate_pads = eqos_calibrate_pads_tegra186,
2097 .eqos_disable_calibration = eqos_disable_calibration_tegra186,
2098 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_tegra186,
2099 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_tegra186
2102 static const struct eqos_config eqos_tegra186_config = {
2103 .reg_access_always_ok = false,
2106 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
2107 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_20_35,
2108 .interface = eqos_get_interface_tegra186,
2109 .ops = &eqos_tegra186_ops
2112 static struct eqos_ops eqos_stm32_ops = {
2113 .eqos_inval_desc = eqos_inval_desc_generic,
2114 .eqos_flush_desc = eqos_flush_desc_generic,
2115 .eqos_inval_buffer = eqos_inval_buffer_generic,
2116 .eqos_flush_buffer = eqos_flush_buffer_generic,
2117 .eqos_probe_resources = eqos_probe_resources_stm32,
2118 .eqos_remove_resources = eqos_remove_resources_stm32,
2119 .eqos_stop_resets = eqos_stop_resets_stm32,
2120 .eqos_start_resets = eqos_start_resets_stm32,
2121 .eqos_stop_clks = eqos_stop_clks_stm32,
2122 .eqos_start_clks = eqos_start_clks_stm32,
2123 .eqos_calibrate_pads = eqos_calibrate_pads_stm32,
2124 .eqos_disable_calibration = eqos_disable_calibration_stm32,
2125 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_stm32,
2126 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_stm32
2129 static const struct eqos_config eqos_stm32_config = {
2130 .reg_access_always_ok = false,
2133 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV,
2134 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
2135 .interface = eqos_get_interface_stm32,
2136 .ops = &eqos_stm32_ops
2139 static struct eqos_ops eqos_imx_ops = {
2140 .eqos_inval_desc = eqos_inval_desc_generic,
2141 .eqos_flush_desc = eqos_flush_desc_generic,
2142 .eqos_inval_buffer = eqos_inval_buffer_generic,
2143 .eqos_flush_buffer = eqos_flush_buffer_generic,
2144 .eqos_probe_resources = eqos_probe_resources_imx,
2145 .eqos_remove_resources = eqos_remove_resources_imx,
2146 .eqos_stop_resets = eqos_stop_resets_imx,
2147 .eqos_start_resets = eqos_start_resets_imx,
2148 .eqos_stop_clks = eqos_stop_clks_imx,
2149 .eqos_start_clks = eqos_start_clks_imx,
2150 .eqos_calibrate_pads = eqos_calibrate_pads_imx,
2151 .eqos_disable_calibration = eqos_disable_calibration_imx,
2152 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_imx,
2153 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx
2156 struct eqos_config eqos_imx_config = {
2157 .reg_access_always_ok = false,
2160 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
2161 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
2162 .interface = eqos_get_interface_imx,
2163 .ops = &eqos_imx_ops
2166 static const struct udevice_id eqos_ids[] = {
2168 .compatible = "nvidia,tegra186-eqos",
2169 .data = (ulong)&eqos_tegra186_config
2172 .compatible = "snps,dwmac-4.20a",
2173 .data = (ulong)&eqos_stm32_config
2176 .compatible = "fsl,imx-eqos",
2177 .data = (ulong)&eqos_imx_config
2183 U_BOOT_DRIVER(eth_eqos) = {
2186 .of_match = of_match_ptr(eqos_ids),
2187 .probe = eqos_probe,
2188 .remove = eqos_remove,
2190 .priv_auto_alloc_size = sizeof(struct eqos_priv),
2191 .platdata_auto_alloc_size = sizeof(struct eth_pdata),