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>
54 #define EQOS_MAC_REGS_BASE 0x000
55 struct eqos_mac_regs {
56 uint32_t configuration; /* 0x000 */
57 uint32_t unused_004[(0x070 - 0x004) / 4]; /* 0x004 */
58 uint32_t q0_tx_flow_ctrl; /* 0x070 */
59 uint32_t unused_070[(0x090 - 0x074) / 4]; /* 0x074 */
60 uint32_t rx_flow_ctrl; /* 0x090 */
61 uint32_t unused_094; /* 0x094 */
62 uint32_t txq_prty_map0; /* 0x098 */
63 uint32_t unused_09c; /* 0x09c */
64 uint32_t rxq_ctrl0; /* 0x0a0 */
65 uint32_t unused_0a4; /* 0x0a4 */
66 uint32_t rxq_ctrl2; /* 0x0a8 */
67 uint32_t unused_0ac[(0x0dc - 0x0ac) / 4]; /* 0x0ac */
68 uint32_t us_tic_counter; /* 0x0dc */
69 uint32_t unused_0e0[(0x11c - 0x0e0) / 4]; /* 0x0e0 */
70 uint32_t hw_feature0; /* 0x11c */
71 uint32_t hw_feature1; /* 0x120 */
72 uint32_t hw_feature2; /* 0x124 */
73 uint32_t unused_128[(0x200 - 0x128) / 4]; /* 0x128 */
74 uint32_t mdio_address; /* 0x200 */
75 uint32_t mdio_data; /* 0x204 */
76 uint32_t unused_208[(0x300 - 0x208) / 4]; /* 0x208 */
77 uint32_t address0_high; /* 0x300 */
78 uint32_t address0_low; /* 0x304 */
81 #define EQOS_MAC_CONFIGURATION_GPSLCE BIT(23)
82 #define EQOS_MAC_CONFIGURATION_CST BIT(21)
83 #define EQOS_MAC_CONFIGURATION_ACS BIT(20)
84 #define EQOS_MAC_CONFIGURATION_WD BIT(19)
85 #define EQOS_MAC_CONFIGURATION_JD BIT(17)
86 #define EQOS_MAC_CONFIGURATION_JE BIT(16)
87 #define EQOS_MAC_CONFIGURATION_PS BIT(15)
88 #define EQOS_MAC_CONFIGURATION_FES BIT(14)
89 #define EQOS_MAC_CONFIGURATION_DM BIT(13)
90 #define EQOS_MAC_CONFIGURATION_LM BIT(12)
91 #define EQOS_MAC_CONFIGURATION_TE BIT(1)
92 #define EQOS_MAC_CONFIGURATION_RE BIT(0)
94 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT 16
95 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_MASK 0xffff
96 #define EQOS_MAC_Q0_TX_FLOW_CTRL_TFE BIT(1)
98 #define EQOS_MAC_RX_FLOW_CTRL_RFE BIT(0)
100 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT 0
101 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK 0xff
103 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT 0
104 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK 3
105 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_NOT_ENABLED 0
106 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB 2
107 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV 1
109 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT 0
110 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK 0xff
112 #define EQOS_MAC_HW_FEATURE0_MMCSEL_SHIFT 8
113 #define EQOS_MAC_HW_FEATURE0_HDSEL_SHIFT 2
114 #define EQOS_MAC_HW_FEATURE0_GMIISEL_SHIFT 1
115 #define EQOS_MAC_HW_FEATURE0_MIISEL_SHIFT 0
117 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT 6
118 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK 0x1f
119 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT 0
120 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK 0x1f
122 #define EQOS_MAC_HW_FEATURE3_ASP_SHIFT 28
123 #define EQOS_MAC_HW_FEATURE3_ASP_MASK 0x3
125 #define EQOS_MAC_MDIO_ADDRESS_PA_SHIFT 21
126 #define EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT 16
127 #define EQOS_MAC_MDIO_ADDRESS_CR_SHIFT 8
128 #define EQOS_MAC_MDIO_ADDRESS_CR_20_35 2
129 #define EQOS_MAC_MDIO_ADDRESS_CR_250_300 5
130 #define EQOS_MAC_MDIO_ADDRESS_SKAP BIT(4)
131 #define EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT 2
132 #define EQOS_MAC_MDIO_ADDRESS_GOC_READ 3
133 #define EQOS_MAC_MDIO_ADDRESS_GOC_WRITE 1
134 #define EQOS_MAC_MDIO_ADDRESS_C45E BIT(1)
135 #define EQOS_MAC_MDIO_ADDRESS_GB BIT(0)
137 #define EQOS_MAC_MDIO_DATA_GD_MASK 0xffff
139 #define EQOS_MTL_REGS_BASE 0xd00
140 struct eqos_mtl_regs {
141 uint32_t txq0_operation_mode; /* 0xd00 */
142 uint32_t unused_d04; /* 0xd04 */
143 uint32_t txq0_debug; /* 0xd08 */
144 uint32_t unused_d0c[(0xd18 - 0xd0c) / 4]; /* 0xd0c */
145 uint32_t txq0_quantum_weight; /* 0xd18 */
146 uint32_t unused_d1c[(0xd30 - 0xd1c) / 4]; /* 0xd1c */
147 uint32_t rxq0_operation_mode; /* 0xd30 */
148 uint32_t unused_d34; /* 0xd34 */
149 uint32_t rxq0_debug; /* 0xd38 */
152 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT 16
153 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK 0x1ff
154 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT 2
155 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_MASK 3
156 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED 2
157 #define EQOS_MTL_TXQ0_OPERATION_MODE_TSF BIT(1)
158 #define EQOS_MTL_TXQ0_OPERATION_MODE_FTQ BIT(0)
160 #define EQOS_MTL_TXQ0_DEBUG_TXQSTS BIT(4)
161 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT 1
162 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK 3
164 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT 20
165 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK 0x3ff
166 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT 14
167 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK 0x3f
168 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT 8
169 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK 0x3f
170 #define EQOS_MTL_RXQ0_OPERATION_MODE_EHFC BIT(7)
171 #define EQOS_MTL_RXQ0_OPERATION_MODE_RSF BIT(5)
172 #define EQOS_MTL_RXQ0_OPERATION_MODE_FEP BIT(4)
173 #define EQOS_MTL_RXQ0_OPERATION_MODE_FUP BIT(3)
175 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT 16
176 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK 0x7fff
177 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT 4
178 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK 3
180 #define EQOS_DMA_REGS_BASE 0x1000
181 struct eqos_dma_regs {
182 uint32_t mode; /* 0x1000 */
183 uint32_t sysbus_mode; /* 0x1004 */
184 uint32_t unused_1008[(0x1100 - 0x1008) / 4]; /* 0x1008 */
185 uint32_t ch0_control; /* 0x1100 */
186 uint32_t ch0_tx_control; /* 0x1104 */
187 uint32_t ch0_rx_control; /* 0x1108 */
188 uint32_t unused_110c; /* 0x110c */
189 uint32_t ch0_txdesc_list_haddress; /* 0x1110 */
190 uint32_t ch0_txdesc_list_address; /* 0x1114 */
191 uint32_t ch0_rxdesc_list_haddress; /* 0x1118 */
192 uint32_t ch0_rxdesc_list_address; /* 0x111c */
193 uint32_t ch0_txdesc_tail_pointer; /* 0x1120 */
194 uint32_t unused_1124; /* 0x1124 */
195 uint32_t ch0_rxdesc_tail_pointer; /* 0x1128 */
196 uint32_t ch0_txdesc_ring_length; /* 0x112c */
197 uint32_t ch0_rxdesc_ring_length; /* 0x1130 */
200 #define EQOS_DMA_MODE_SWR BIT(0)
202 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT 16
203 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_MASK 0xf
204 #define EQOS_DMA_SYSBUS_MODE_EAME BIT(11)
205 #define EQOS_DMA_SYSBUS_MODE_BLEN16 BIT(3)
206 #define EQOS_DMA_SYSBUS_MODE_BLEN8 BIT(2)
207 #define EQOS_DMA_SYSBUS_MODE_BLEN4 BIT(1)
209 #define EQOS_DMA_CH0_CONTROL_PBLX8 BIT(16)
211 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT 16
212 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK 0x3f
213 #define EQOS_DMA_CH0_TX_CONTROL_OSP BIT(4)
214 #define EQOS_DMA_CH0_TX_CONTROL_ST BIT(0)
216 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT 16
217 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK 0x3f
218 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT 1
219 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK 0x3fff
220 #define EQOS_DMA_CH0_RX_CONTROL_SR BIT(0)
222 /* These registers are Tegra186-specific */
223 #define EQOS_TEGRA186_REGS_BASE 0x8800
224 struct eqos_tegra186_regs {
225 uint32_t sdmemcomppadctrl; /* 0x8800 */
226 uint32_t auto_cal_config; /* 0x8804 */
227 uint32_t unused_8808; /* 0x8808 */
228 uint32_t auto_cal_status; /* 0x880c */
231 #define EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD BIT(31)
233 #define EQOS_AUTO_CAL_CONFIG_START BIT(31)
234 #define EQOS_AUTO_CAL_CONFIG_ENABLE BIT(29)
236 #define EQOS_AUTO_CAL_STATUS_ACTIVE BIT(31)
240 #define EQOS_DESCRIPTOR_WORDS 4
241 #define EQOS_DESCRIPTOR_SIZE (EQOS_DESCRIPTOR_WORDS * 4)
242 /* We assume ARCH_DMA_MINALIGN >= 16; 16 is the EQOS HW minimum */
243 #define EQOS_DESCRIPTOR_ALIGN ARCH_DMA_MINALIGN
244 #define EQOS_DESCRIPTORS_TX 4
245 #define EQOS_DESCRIPTORS_RX 4
246 #define EQOS_DESCRIPTORS_NUM (EQOS_DESCRIPTORS_TX + EQOS_DESCRIPTORS_RX)
247 #define EQOS_DESCRIPTORS_SIZE ALIGN(EQOS_DESCRIPTORS_NUM * \
248 EQOS_DESCRIPTOR_SIZE, ARCH_DMA_MINALIGN)
249 #define EQOS_BUFFER_ALIGN ARCH_DMA_MINALIGN
250 #define EQOS_MAX_PACKET_SIZE ALIGN(1568, ARCH_DMA_MINALIGN)
251 #define EQOS_RX_BUFFER_SIZE (EQOS_DESCRIPTORS_RX * EQOS_MAX_PACKET_SIZE)
254 * Warn if the cache-line size is larger than the descriptor size. In such
255 * cases the driver will likely fail because the CPU needs to flush the cache
256 * when requeuing RX buffers, therefore descriptors written by the hardware
257 * may be discarded. Architectures with full IO coherence, such as x86, do not
258 * experience this issue, and hence are excluded from this condition.
260 * This can be fixed by defining CONFIG_SYS_NONCACHED_MEMORY which will cause
261 * the driver to allocate descriptors from a pool of non-cached memory.
263 #if EQOS_DESCRIPTOR_SIZE < ARCH_DMA_MINALIGN
264 #if !defined(CONFIG_SYS_NONCACHED_MEMORY) && \
265 !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) && !defined(CONFIG_X86)
266 #warning Cache line size is larger than descriptor size
277 #define EQOS_DESC3_OWN BIT(31)
278 #define EQOS_DESC3_FD BIT(29)
279 #define EQOS_DESC3_LD BIT(28)
280 #define EQOS_DESC3_BUF1V BIT(24)
283 bool reg_access_always_ok;
288 phy_interface_t (*interface)(struct udevice *dev);
289 struct eqos_ops *ops;
293 void (*eqos_inval_desc)(void *desc);
294 void (*eqos_flush_desc)(void *desc);
295 void (*eqos_inval_buffer)(void *buf, size_t size);
296 void (*eqos_flush_buffer)(void *buf, size_t size);
297 int (*eqos_probe_resources)(struct udevice *dev);
298 int (*eqos_remove_resources)(struct udevice *dev);
299 int (*eqos_stop_resets)(struct udevice *dev);
300 int (*eqos_start_resets)(struct udevice *dev);
301 void (*eqos_stop_clks)(struct udevice *dev);
302 int (*eqos_start_clks)(struct udevice *dev);
303 int (*eqos_calibrate_pads)(struct udevice *dev);
304 int (*eqos_disable_calibration)(struct udevice *dev);
305 int (*eqos_set_tx_clk_speed)(struct udevice *dev);
306 ulong (*eqos_get_tick_clk_rate)(struct udevice *dev);
311 const struct eqos_config *config;
313 struct eqos_mac_regs *mac_regs;
314 struct eqos_mtl_regs *mtl_regs;
315 struct eqos_dma_regs *dma_regs;
316 struct eqos_tegra186_regs *tegra186_regs;
317 struct reset_ctl reset_ctl;
318 struct gpio_desc phy_reset_gpio;
319 struct clk clk_master_bus;
321 struct clk clk_ptp_ref;
324 struct clk clk_slave_bus;
326 struct phy_device *phy;
330 struct eqos_desc *tx_descs;
331 struct eqos_desc *rx_descs;
332 int tx_desc_idx, rx_desc_idx;
341 * TX and RX descriptors are 16 bytes. This causes problems with the cache
342 * maintenance on CPUs where the cache-line size exceeds the size of these
343 * descriptors. What will happen is that when the driver receives a packet
344 * it will be immediately requeued for the hardware to reuse. The CPU will
345 * therefore need to flush the cache-line containing the descriptor, which
346 * will cause all other descriptors in the same cache-line to be flushed
347 * along with it. If one of those descriptors had been written to by the
348 * device those changes (and the associated packet) will be lost.
350 * To work around this, we make use of non-cached memory if available. If
351 * descriptors are mapped uncached there's no need to manually flush them
352 * or invalidate them.
354 * Note that this only applies to descriptors. The packet data buffers do
355 * not have the same constraints since they are 1536 bytes large, so they
356 * are unlikely to share cache-lines.
358 static void *eqos_alloc_descs(unsigned int num)
360 #ifdef CONFIG_SYS_NONCACHED_MEMORY
361 return (void *)noncached_alloc(EQOS_DESCRIPTORS_SIZE,
362 EQOS_DESCRIPTOR_ALIGN);
364 return memalign(EQOS_DESCRIPTOR_ALIGN, EQOS_DESCRIPTORS_SIZE);
368 static void eqos_free_descs(void *descs)
370 #ifdef CONFIG_SYS_NONCACHED_MEMORY
371 /* FIXME: noncached_alloc() has no opposite */
377 static void eqos_inval_desc_tegra186(void *desc)
379 #ifndef CONFIG_SYS_NONCACHED_MEMORY
380 unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
381 unsigned long end = ALIGN(start + EQOS_DESCRIPTOR_SIZE,
384 invalidate_dcache_range(start, end);
388 static void eqos_inval_desc_generic(void *desc)
390 #ifndef CONFIG_SYS_NONCACHED_MEMORY
391 unsigned long start = rounddown((unsigned long)desc, ARCH_DMA_MINALIGN);
392 unsigned long end = roundup((unsigned long)desc + EQOS_DESCRIPTOR_SIZE,
395 invalidate_dcache_range(start, end);
399 static void eqos_flush_desc_tegra186(void *desc)
401 #ifndef CONFIG_SYS_NONCACHED_MEMORY
402 flush_cache((unsigned long)desc, EQOS_DESCRIPTOR_SIZE);
406 static void eqos_flush_desc_generic(void *desc)
408 #ifndef CONFIG_SYS_NONCACHED_MEMORY
409 unsigned long start = rounddown((unsigned long)desc, ARCH_DMA_MINALIGN);
410 unsigned long end = roundup((unsigned long)desc + EQOS_DESCRIPTOR_SIZE,
413 flush_dcache_range(start, end);
417 static void eqos_inval_buffer_tegra186(void *buf, size_t size)
419 unsigned long start = (unsigned long)buf & ~(ARCH_DMA_MINALIGN - 1);
420 unsigned long end = ALIGN(start + size, ARCH_DMA_MINALIGN);
422 invalidate_dcache_range(start, end);
425 static void eqos_inval_buffer_generic(void *buf, size_t size)
427 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
428 unsigned long end = roundup((unsigned long)buf + size,
431 invalidate_dcache_range(start, end);
434 static void eqos_flush_buffer_tegra186(void *buf, size_t size)
436 flush_cache((unsigned long)buf, size);
439 static void eqos_flush_buffer_generic(void *buf, size_t size)
441 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
442 unsigned long end = roundup((unsigned long)buf + size,
445 flush_dcache_range(start, end);
448 static int eqos_mdio_wait_idle(struct eqos_priv *eqos)
450 return wait_for_bit_le32(&eqos->mac_regs->mdio_address,
451 EQOS_MAC_MDIO_ADDRESS_GB, false,
455 static int eqos_mdio_read(struct mii_dev *bus, int mdio_addr, int mdio_devad,
458 struct eqos_priv *eqos = bus->priv;
462 debug("%s(dev=%p, addr=%x, reg=%d):\n", __func__, eqos->dev, mdio_addr,
465 ret = eqos_mdio_wait_idle(eqos);
467 pr_err("MDIO not idle at entry");
471 val = readl(&eqos->mac_regs->mdio_address);
472 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
473 EQOS_MAC_MDIO_ADDRESS_C45E;
474 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
475 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
476 (eqos->config->config_mac_mdio <<
477 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
478 (EQOS_MAC_MDIO_ADDRESS_GOC_READ <<
479 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
480 EQOS_MAC_MDIO_ADDRESS_GB;
481 writel(val, &eqos->mac_regs->mdio_address);
483 udelay(eqos->config->mdio_wait);
485 ret = eqos_mdio_wait_idle(eqos);
487 pr_err("MDIO read didn't complete");
491 val = readl(&eqos->mac_regs->mdio_data);
492 val &= EQOS_MAC_MDIO_DATA_GD_MASK;
494 debug("%s: val=%x\n", __func__, val);
499 static int eqos_mdio_write(struct mii_dev *bus, int mdio_addr, int mdio_devad,
500 int mdio_reg, u16 mdio_val)
502 struct eqos_priv *eqos = bus->priv;
506 debug("%s(dev=%p, addr=%x, reg=%d, val=%x):\n", __func__, eqos->dev,
507 mdio_addr, mdio_reg, mdio_val);
509 ret = eqos_mdio_wait_idle(eqos);
511 pr_err("MDIO not idle at entry");
515 writel(mdio_val, &eqos->mac_regs->mdio_data);
517 val = readl(&eqos->mac_regs->mdio_address);
518 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
519 EQOS_MAC_MDIO_ADDRESS_C45E;
520 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
521 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
522 (eqos->config->config_mac_mdio <<
523 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
524 (EQOS_MAC_MDIO_ADDRESS_GOC_WRITE <<
525 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
526 EQOS_MAC_MDIO_ADDRESS_GB;
527 writel(val, &eqos->mac_regs->mdio_address);
529 udelay(eqos->config->mdio_wait);
531 ret = eqos_mdio_wait_idle(eqos);
533 pr_err("MDIO read didn't complete");
540 static int eqos_start_clks_tegra186(struct udevice *dev)
543 struct eqos_priv *eqos = dev_get_priv(dev);
546 debug("%s(dev=%p):\n", __func__, dev);
548 ret = clk_enable(&eqos->clk_slave_bus);
550 pr_err("clk_enable(clk_slave_bus) failed: %d", ret);
554 ret = clk_enable(&eqos->clk_master_bus);
556 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
557 goto err_disable_clk_slave_bus;
560 ret = clk_enable(&eqos->clk_rx);
562 pr_err("clk_enable(clk_rx) failed: %d", ret);
563 goto err_disable_clk_master_bus;
566 ret = clk_enable(&eqos->clk_ptp_ref);
568 pr_err("clk_enable(clk_ptp_ref) failed: %d", ret);
569 goto err_disable_clk_rx;
572 ret = clk_set_rate(&eqos->clk_ptp_ref, 125 * 1000 * 1000);
574 pr_err("clk_set_rate(clk_ptp_ref) failed: %d", ret);
575 goto err_disable_clk_ptp_ref;
578 ret = clk_enable(&eqos->clk_tx);
580 pr_err("clk_enable(clk_tx) failed: %d", ret);
581 goto err_disable_clk_ptp_ref;
585 debug("%s: OK\n", __func__);
589 err_disable_clk_ptp_ref:
590 clk_disable(&eqos->clk_ptp_ref);
592 clk_disable(&eqos->clk_rx);
593 err_disable_clk_master_bus:
594 clk_disable(&eqos->clk_master_bus);
595 err_disable_clk_slave_bus:
596 clk_disable(&eqos->clk_slave_bus);
598 debug("%s: FAILED: %d\n", __func__, ret);
603 static int eqos_start_clks_stm32(struct udevice *dev)
606 struct eqos_priv *eqos = dev_get_priv(dev);
609 debug("%s(dev=%p):\n", __func__, dev);
611 ret = clk_enable(&eqos->clk_master_bus);
613 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
617 ret = clk_enable(&eqos->clk_rx);
619 pr_err("clk_enable(clk_rx) failed: %d", ret);
620 goto err_disable_clk_master_bus;
623 ret = clk_enable(&eqos->clk_tx);
625 pr_err("clk_enable(clk_tx) failed: %d", ret);
626 goto err_disable_clk_rx;
629 if (clk_valid(&eqos->clk_ck)) {
630 ret = clk_enable(&eqos->clk_ck);
632 pr_err("clk_enable(clk_ck) failed: %d", ret);
633 goto err_disable_clk_tx;
638 debug("%s: OK\n", __func__);
643 clk_disable(&eqos->clk_tx);
645 clk_disable(&eqos->clk_rx);
646 err_disable_clk_master_bus:
647 clk_disable(&eqos->clk_master_bus);
649 debug("%s: FAILED: %d\n", __func__, ret);
654 static int eqos_start_clks_imx(struct udevice *dev)
659 static void eqos_stop_clks_tegra186(struct udevice *dev)
662 struct eqos_priv *eqos = dev_get_priv(dev);
664 debug("%s(dev=%p):\n", __func__, dev);
666 clk_disable(&eqos->clk_tx);
667 clk_disable(&eqos->clk_ptp_ref);
668 clk_disable(&eqos->clk_rx);
669 clk_disable(&eqos->clk_master_bus);
670 clk_disable(&eqos->clk_slave_bus);
673 debug("%s: OK\n", __func__);
676 static void eqos_stop_clks_stm32(struct udevice *dev)
679 struct eqos_priv *eqos = dev_get_priv(dev);
681 debug("%s(dev=%p):\n", __func__, dev);
683 clk_disable(&eqos->clk_tx);
684 clk_disable(&eqos->clk_rx);
685 clk_disable(&eqos->clk_master_bus);
686 if (clk_valid(&eqos->clk_ck))
687 clk_disable(&eqos->clk_ck);
690 debug("%s: OK\n", __func__);
693 static void eqos_stop_clks_imx(struct udevice *dev)
698 static int eqos_start_resets_tegra186(struct udevice *dev)
700 struct eqos_priv *eqos = dev_get_priv(dev);
703 debug("%s(dev=%p):\n", __func__, dev);
705 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
707 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d", ret);
713 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
715 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d", ret);
719 ret = reset_assert(&eqos->reset_ctl);
721 pr_err("reset_assert() failed: %d", ret);
727 ret = reset_deassert(&eqos->reset_ctl);
729 pr_err("reset_deassert() failed: %d", ret);
733 debug("%s: OK\n", __func__);
737 static int eqos_start_resets_stm32(struct udevice *dev)
739 struct eqos_priv *eqos = dev_get_priv(dev);
742 debug("%s(dev=%p):\n", __func__, dev);
743 if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
744 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
746 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d",
753 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
755 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d",
760 debug("%s: OK\n", __func__);
765 static int eqos_start_resets_imx(struct udevice *dev)
770 static int eqos_stop_resets_tegra186(struct udevice *dev)
772 struct eqos_priv *eqos = dev_get_priv(dev);
774 reset_assert(&eqos->reset_ctl);
775 dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
780 static int eqos_stop_resets_stm32(struct udevice *dev)
782 struct eqos_priv *eqos = dev_get_priv(dev);
785 if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
786 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
788 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d",
797 static int eqos_stop_resets_imx(struct udevice *dev)
802 static int eqos_calibrate_pads_tegra186(struct udevice *dev)
804 struct eqos_priv *eqos = dev_get_priv(dev);
807 debug("%s(dev=%p):\n", __func__, dev);
809 setbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
810 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
814 setbits_le32(&eqos->tegra186_regs->auto_cal_config,
815 EQOS_AUTO_CAL_CONFIG_START | EQOS_AUTO_CAL_CONFIG_ENABLE);
817 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
818 EQOS_AUTO_CAL_STATUS_ACTIVE, true, 10, false);
820 pr_err("calibrate didn't start");
824 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
825 EQOS_AUTO_CAL_STATUS_ACTIVE, false, 10, false);
827 pr_err("calibrate didn't finish");
834 clrbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
835 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
837 debug("%s: returns %d\n", __func__, ret);
842 static int eqos_disable_calibration_tegra186(struct udevice *dev)
844 struct eqos_priv *eqos = dev_get_priv(dev);
846 debug("%s(dev=%p):\n", __func__, dev);
848 clrbits_le32(&eqos->tegra186_regs->auto_cal_config,
849 EQOS_AUTO_CAL_CONFIG_ENABLE);
854 static ulong eqos_get_tick_clk_rate_tegra186(struct udevice *dev)
857 struct eqos_priv *eqos = dev_get_priv(dev);
859 return clk_get_rate(&eqos->clk_slave_bus);
865 static ulong eqos_get_tick_clk_rate_stm32(struct udevice *dev)
868 struct eqos_priv *eqos = dev_get_priv(dev);
870 return clk_get_rate(&eqos->clk_master_bus);
876 __weak u32 imx_get_eqos_csr_clk(void)
878 return 100 * 1000000;
880 __weak int imx_eqos_txclk_set_rate(unsigned long rate)
885 static ulong eqos_get_tick_clk_rate_imx(struct udevice *dev)
887 return imx_get_eqos_csr_clk();
890 static int eqos_calibrate_pads_stm32(struct udevice *dev)
895 static int eqos_calibrate_pads_imx(struct udevice *dev)
900 static int eqos_disable_calibration_stm32(struct udevice *dev)
905 static int eqos_disable_calibration_imx(struct udevice *dev)
910 static int eqos_set_full_duplex(struct udevice *dev)
912 struct eqos_priv *eqos = dev_get_priv(dev);
914 debug("%s(dev=%p):\n", __func__, dev);
916 setbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
921 static int eqos_set_half_duplex(struct udevice *dev)
923 struct eqos_priv *eqos = dev_get_priv(dev);
925 debug("%s(dev=%p):\n", __func__, dev);
927 clrbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
929 /* WAR: Flush TX queue when switching to half-duplex */
930 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
931 EQOS_MTL_TXQ0_OPERATION_MODE_FTQ);
936 static int eqos_set_gmii_speed(struct udevice *dev)
938 struct eqos_priv *eqos = dev_get_priv(dev);
940 debug("%s(dev=%p):\n", __func__, dev);
942 clrbits_le32(&eqos->mac_regs->configuration,
943 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
948 static int eqos_set_mii_speed_100(struct udevice *dev)
950 struct eqos_priv *eqos = dev_get_priv(dev);
952 debug("%s(dev=%p):\n", __func__, dev);
954 setbits_le32(&eqos->mac_regs->configuration,
955 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
960 static int eqos_set_mii_speed_10(struct udevice *dev)
962 struct eqos_priv *eqos = dev_get_priv(dev);
964 debug("%s(dev=%p):\n", __func__, dev);
966 clrsetbits_le32(&eqos->mac_regs->configuration,
967 EQOS_MAC_CONFIGURATION_FES, EQOS_MAC_CONFIGURATION_PS);
972 static int eqos_set_tx_clk_speed_tegra186(struct udevice *dev)
975 struct eqos_priv *eqos = dev_get_priv(dev);
979 debug("%s(dev=%p):\n", __func__, dev);
981 switch (eqos->phy->speed) {
983 rate = 125 * 1000 * 1000;
986 rate = 25 * 1000 * 1000;
989 rate = 2.5 * 1000 * 1000;
992 pr_err("invalid speed %d", eqos->phy->speed);
996 ret = clk_set_rate(&eqos->clk_tx, rate);
998 pr_err("clk_set_rate(tx_clk, %lu) failed: %d", rate, ret);
1006 static int eqos_set_tx_clk_speed_stm32(struct udevice *dev)
1011 static int eqos_set_tx_clk_speed_imx(struct udevice *dev)
1013 struct eqos_priv *eqos = dev_get_priv(dev);
1017 debug("%s(dev=%p):\n", __func__, dev);
1019 switch (eqos->phy->speed) {
1021 rate = 125 * 1000 * 1000;
1024 rate = 25 * 1000 * 1000;
1027 rate = 2.5 * 1000 * 1000;
1030 pr_err("invalid speed %d", eqos->phy->speed);
1034 ret = imx_eqos_txclk_set_rate(rate);
1036 pr_err("imx (tx_clk, %lu) failed: %d", rate, ret);
1043 static int eqos_adjust_link(struct udevice *dev)
1045 struct eqos_priv *eqos = dev_get_priv(dev);
1047 bool en_calibration;
1049 debug("%s(dev=%p):\n", __func__, dev);
1051 if (eqos->phy->duplex)
1052 ret = eqos_set_full_duplex(dev);
1054 ret = eqos_set_half_duplex(dev);
1056 pr_err("eqos_set_*_duplex() failed: %d", ret);
1060 switch (eqos->phy->speed) {
1062 en_calibration = true;
1063 ret = eqos_set_gmii_speed(dev);
1066 en_calibration = true;
1067 ret = eqos_set_mii_speed_100(dev);
1070 en_calibration = false;
1071 ret = eqos_set_mii_speed_10(dev);
1074 pr_err("invalid speed %d", eqos->phy->speed);
1078 pr_err("eqos_set_*mii_speed*() failed: %d", ret);
1082 if (en_calibration) {
1083 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1085 pr_err("eqos_calibrate_pads() failed: %d",
1090 ret = eqos->config->ops->eqos_disable_calibration(dev);
1092 pr_err("eqos_disable_calibration() failed: %d",
1097 ret = eqos->config->ops->eqos_set_tx_clk_speed(dev);
1099 pr_err("eqos_set_tx_clk_speed() failed: %d", ret);
1106 static int eqos_write_hwaddr(struct udevice *dev)
1108 struct eth_pdata *plat = dev_get_platdata(dev);
1109 struct eqos_priv *eqos = dev_get_priv(dev);
1113 * This function may be called before start() or after stop(). At that
1114 * time, on at least some configurations of the EQoS HW, all clocks to
1115 * the EQoS HW block will be stopped, and a reset signal applied. If
1116 * any register access is attempted in this state, bus timeouts or CPU
1117 * hangs may occur. This check prevents that.
1119 * A simple solution to this problem would be to not implement
1120 * write_hwaddr(), since start() always writes the MAC address into HW
1121 * anyway. However, it is desirable to implement write_hwaddr() to
1122 * support the case of SW that runs subsequent to U-Boot which expects
1123 * the MAC address to already be programmed into the EQoS registers,
1124 * which must happen irrespective of whether the U-Boot user (or
1125 * scripts) actually made use of the EQoS device, and hence
1126 * irrespective of whether start() was ever called.
1128 * Note that this requirement by subsequent SW is not valid for
1129 * Tegra186, and is likely not valid for any non-PCI instantiation of
1130 * the EQoS HW block. This function is implemented solely as
1131 * future-proofing with the expectation the driver will eventually be
1132 * ported to some system where the expectation above is true.
1134 if (!eqos->config->reg_access_always_ok && !eqos->reg_access_ok)
1137 /* Update the MAC address */
1138 val = (plat->enetaddr[5] << 8) |
1139 (plat->enetaddr[4]);
1140 writel(val, &eqos->mac_regs->address0_high);
1141 val = (plat->enetaddr[3] << 24) |
1142 (plat->enetaddr[2] << 16) |
1143 (plat->enetaddr[1] << 8) |
1144 (plat->enetaddr[0]);
1145 writel(val, &eqos->mac_regs->address0_low);
1150 static int eqos_read_rom_hwaddr(struct udevice *dev)
1152 struct eth_pdata *pdata = dev_get_platdata(dev);
1154 #ifdef CONFIG_ARCH_IMX8M
1155 imx_get_mac_from_fuse(dev->req_seq, pdata->enetaddr);
1157 return !is_valid_ethaddr(pdata->enetaddr);
1160 static int eqos_start(struct udevice *dev)
1162 struct eqos_priv *eqos = dev_get_priv(dev);
1165 u32 val, tx_fifo_sz, rx_fifo_sz, tqs, rqs, pbl;
1168 debug("%s(dev=%p):\n", __func__, dev);
1170 eqos->tx_desc_idx = 0;
1171 eqos->rx_desc_idx = 0;
1173 ret = eqos->config->ops->eqos_start_clks(dev);
1175 pr_err("eqos_start_clks() failed: %d", ret);
1179 ret = eqos->config->ops->eqos_start_resets(dev);
1181 pr_err("eqos_start_resets() failed: %d", ret);
1187 eqos->reg_access_ok = true;
1189 ret = wait_for_bit_le32(&eqos->dma_regs->mode,
1190 EQOS_DMA_MODE_SWR, false,
1191 eqos->config->swr_wait, false);
1193 pr_err("EQOS_DMA_MODE_SWR stuck");
1194 goto err_stop_resets;
1197 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1199 pr_err("eqos_calibrate_pads() failed: %d", ret);
1200 goto err_stop_resets;
1202 rate = eqos->config->ops->eqos_get_tick_clk_rate(dev);
1204 val = (rate / 1000000) - 1;
1205 writel(val, &eqos->mac_regs->us_tic_counter);
1208 * if PHY was already connected and configured,
1209 * don't need to reconnect/reconfigure again
1213 #ifdef CONFIG_DM_ETH_PHY
1214 addr = eth_phy_get_addr(dev);
1216 #ifdef DWC_NET_PHYADDR
1217 addr = DWC_NET_PHYADDR;
1219 eqos->phy = phy_connect(eqos->mii, addr, dev,
1220 eqos->config->interface(dev));
1222 pr_err("phy_connect() failed");
1223 goto err_stop_resets;
1226 if (eqos->max_speed) {
1227 ret = phy_set_supported(eqos->phy, eqos->max_speed);
1229 pr_err("phy_set_supported() failed: %d", ret);
1230 goto err_shutdown_phy;
1234 ret = phy_config(eqos->phy);
1236 pr_err("phy_config() failed: %d", ret);
1237 goto err_shutdown_phy;
1241 ret = phy_startup(eqos->phy);
1243 pr_err("phy_startup() failed: %d", ret);
1244 goto err_shutdown_phy;
1247 if (!eqos->phy->link) {
1249 goto err_shutdown_phy;
1252 ret = eqos_adjust_link(dev);
1254 pr_err("eqos_adjust_link() failed: %d", ret);
1255 goto err_shutdown_phy;
1259 writel(0x60, &eqos->mtl_regs->txq0_quantum_weight - 0x100);
1261 /* Enable Store and Forward mode for TX */
1262 /* Program Tx operating mode */
1263 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1264 EQOS_MTL_TXQ0_OPERATION_MODE_TSF |
1265 (EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED <<
1266 EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT));
1268 /* Transmit Queue weight */
1269 writel(0x10, &eqos->mtl_regs->txq0_quantum_weight);
1271 /* Enable Store and Forward mode for RX, since no jumbo frame */
1272 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1273 EQOS_MTL_RXQ0_OPERATION_MODE_RSF |
1274 EQOS_MTL_RXQ0_OPERATION_MODE_FEP |
1275 EQOS_MTL_RXQ0_OPERATION_MODE_FUP);
1277 /* Transmit/Receive queue fifo size; use all RAM for 1 queue */
1278 val = readl(&eqos->mac_regs->hw_feature1);
1279 tx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT) &
1280 EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK;
1281 rx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT) &
1282 EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK;
1285 * r/tx_fifo_sz is encoded as log2(n / 128). Undo that by shifting.
1286 * r/tqs is encoded as (n / 256) - 1.
1288 tqs = (128 << tx_fifo_sz) / 256 - 1;
1289 rqs = (128 << rx_fifo_sz) / 256 - 1;
1291 clrsetbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1292 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK <<
1293 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT,
1294 tqs << EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT);
1295 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1296 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK <<
1297 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT,
1298 rqs << EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT);
1300 /* Flow control used only if each channel gets 4KB or more FIFO */
1301 if (rqs >= ((4096 / 256) - 1)) {
1304 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1305 EQOS_MTL_RXQ0_OPERATION_MODE_EHFC);
1308 * Set Threshold for Activating Flow Contol space for min 2
1309 * frames ie, (1500 * 1) = 1500 bytes.
1311 * Set Threshold for Deactivating Flow Contol for space of
1312 * min 1 frame (frame size 1500bytes) in receive fifo
1314 if (rqs == ((4096 / 256) - 1)) {
1316 * This violates the above formula because of FIFO size
1317 * limit therefore overflow may occur inspite of this.
1319 rfd = 0x3; /* Full-3K */
1320 rfa = 0x1; /* Full-1.5K */
1321 } else if (rqs == ((8192 / 256) - 1)) {
1322 rfd = 0x6; /* Full-4K */
1323 rfa = 0xa; /* Full-6K */
1324 } else if (rqs == ((16384 / 256) - 1)) {
1325 rfd = 0x6; /* Full-4K */
1326 rfa = 0x12; /* Full-10K */
1328 rfd = 0x6; /* Full-4K */
1329 rfa = 0x1E; /* Full-16K */
1332 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1333 (EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK <<
1334 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1335 (EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK <<
1336 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT),
1338 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1340 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT));
1345 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1346 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1347 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1348 eqos->config->config_mac <<
1349 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1351 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1352 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1353 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1355 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1357 /* Multicast and Broadcast Queue Enable */
1358 setbits_le32(&eqos->mac_regs->unused_0a4,
1360 /* enable promise mode */
1361 setbits_le32(&eqos->mac_regs->unused_004[1],
1364 /* Set TX flow control parameters */
1365 /* Set Pause Time */
1366 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1367 0xffff << EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT);
1368 /* Assign priority for TX flow control */
1369 clrbits_le32(&eqos->mac_regs->txq_prty_map0,
1370 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK <<
1371 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT);
1372 /* Assign priority for RX flow control */
1373 clrbits_le32(&eqos->mac_regs->rxq_ctrl2,
1374 EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK <<
1375 EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT);
1376 /* Enable flow control */
1377 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1378 EQOS_MAC_Q0_TX_FLOW_CTRL_TFE);
1379 setbits_le32(&eqos->mac_regs->rx_flow_ctrl,
1380 EQOS_MAC_RX_FLOW_CTRL_RFE);
1382 clrsetbits_le32(&eqos->mac_regs->configuration,
1383 EQOS_MAC_CONFIGURATION_GPSLCE |
1384 EQOS_MAC_CONFIGURATION_WD |
1385 EQOS_MAC_CONFIGURATION_JD |
1386 EQOS_MAC_CONFIGURATION_JE,
1387 EQOS_MAC_CONFIGURATION_CST |
1388 EQOS_MAC_CONFIGURATION_ACS);
1390 eqos_write_hwaddr(dev);
1394 /* Enable OSP mode */
1395 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1396 EQOS_DMA_CH0_TX_CONTROL_OSP);
1398 /* RX buffer size. Must be a multiple of bus width */
1399 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1400 EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK <<
1401 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT,
1402 EQOS_MAX_PACKET_SIZE <<
1403 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT);
1405 setbits_le32(&eqos->dma_regs->ch0_control,
1406 EQOS_DMA_CH0_CONTROL_PBLX8);
1409 * Burst length must be < 1/2 FIFO size.
1410 * FIFO size in tqs is encoded as (n / 256) - 1.
1411 * Each burst is n * 8 (PBLX8) * 16 (AXI width) == 128 bytes.
1412 * Half of n * 256 is n * 128, so pbl == tqs, modulo the -1.
1417 clrsetbits_le32(&eqos->dma_regs->ch0_tx_control,
1418 EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK <<
1419 EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT,
1420 pbl << EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT);
1422 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1423 EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK <<
1424 EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT,
1425 8 << EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT);
1427 /* DMA performance configuration */
1428 val = (2 << EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT) |
1429 EQOS_DMA_SYSBUS_MODE_EAME | EQOS_DMA_SYSBUS_MODE_BLEN16 |
1430 EQOS_DMA_SYSBUS_MODE_BLEN8 | EQOS_DMA_SYSBUS_MODE_BLEN4;
1431 writel(val, &eqos->dma_regs->sysbus_mode);
1433 /* Set up descriptors */
1435 memset(eqos->descs, 0, EQOS_DESCRIPTORS_SIZE);
1436 for (i = 0; i < EQOS_DESCRIPTORS_RX; i++) {
1437 struct eqos_desc *rx_desc = &(eqos->rx_descs[i]);
1438 rx_desc->des0 = (u32)(ulong)(eqos->rx_dma_buf +
1439 (i * EQOS_MAX_PACKET_SIZE));
1440 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1442 eqos->config->ops->eqos_flush_desc(rx_desc);
1443 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf +
1444 (i * EQOS_MAX_PACKET_SIZE),
1445 EQOS_MAX_PACKET_SIZE);
1448 writel(0, &eqos->dma_regs->ch0_txdesc_list_haddress);
1449 writel((ulong)eqos->tx_descs, &eqos->dma_regs->ch0_txdesc_list_address);
1450 writel(EQOS_DESCRIPTORS_TX - 1,
1451 &eqos->dma_regs->ch0_txdesc_ring_length);
1453 writel(0, &eqos->dma_regs->ch0_rxdesc_list_haddress);
1454 writel((ulong)eqos->rx_descs, &eqos->dma_regs->ch0_rxdesc_list_address);
1455 writel(EQOS_DESCRIPTORS_RX - 1,
1456 &eqos->dma_regs->ch0_rxdesc_ring_length);
1458 /* Enable everything */
1459 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1460 EQOS_DMA_CH0_TX_CONTROL_ST);
1461 setbits_le32(&eqos->dma_regs->ch0_rx_control,
1462 EQOS_DMA_CH0_RX_CONTROL_SR);
1463 setbits_le32(&eqos->mac_regs->configuration,
1464 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1466 /* TX tail pointer not written until we need to TX a packet */
1468 * Point RX tail pointer at last descriptor. Ideally, we'd point at the
1469 * first descriptor, implying all descriptors were available. However,
1470 * that's not distinguishable from none of the descriptors being
1473 last_rx_desc = (ulong)&(eqos->rx_descs[(EQOS_DESCRIPTORS_RX - 1)]);
1474 writel(last_rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1476 eqos->started = true;
1478 debug("%s: OK\n", __func__);
1482 phy_shutdown(eqos->phy);
1484 eqos->config->ops->eqos_stop_resets(dev);
1486 eqos->config->ops->eqos_stop_clks(dev);
1488 pr_err("FAILED: %d", ret);
1492 static void eqos_stop(struct udevice *dev)
1494 struct eqos_priv *eqos = dev_get_priv(dev);
1497 debug("%s(dev=%p):\n", __func__, dev);
1501 eqos->started = false;
1502 eqos->reg_access_ok = false;
1504 /* Disable TX DMA */
1505 clrbits_le32(&eqos->dma_regs->ch0_tx_control,
1506 EQOS_DMA_CH0_TX_CONTROL_ST);
1508 /* Wait for TX all packets to drain out of MTL */
1509 for (i = 0; i < 1000000; i++) {
1510 u32 val = readl(&eqos->mtl_regs->txq0_debug);
1511 u32 trcsts = (val >> EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT) &
1512 EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK;
1513 u32 txqsts = val & EQOS_MTL_TXQ0_DEBUG_TXQSTS;
1514 if ((trcsts != 1) && (!txqsts))
1518 /* Turn off MAC TX and RX */
1519 clrbits_le32(&eqos->mac_regs->configuration,
1520 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1522 /* Wait for all RX packets to drain out of MTL */
1523 for (i = 0; i < 1000000; i++) {
1524 u32 val = readl(&eqos->mtl_regs->rxq0_debug);
1525 u32 prxq = (val >> EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT) &
1526 EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK;
1527 u32 rxqsts = (val >> EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT) &
1528 EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK;
1529 if ((!prxq) && (!rxqsts))
1533 /* Turn off RX DMA */
1534 clrbits_le32(&eqos->dma_regs->ch0_rx_control,
1535 EQOS_DMA_CH0_RX_CONTROL_SR);
1538 phy_shutdown(eqos->phy);
1540 eqos->config->ops->eqos_stop_resets(dev);
1541 eqos->config->ops->eqos_stop_clks(dev);
1543 debug("%s: OK\n", __func__);
1546 static int eqos_send(struct udevice *dev, void *packet, int length)
1548 struct eqos_priv *eqos = dev_get_priv(dev);
1549 struct eqos_desc *tx_desc;
1552 debug("%s(dev=%p, packet=%p, length=%d):\n", __func__, dev, packet,
1555 memcpy(eqos->tx_dma_buf, packet, length);
1556 eqos->config->ops->eqos_flush_buffer(eqos->tx_dma_buf, length);
1558 tx_desc = &(eqos->tx_descs[eqos->tx_desc_idx]);
1559 eqos->tx_desc_idx++;
1560 eqos->tx_desc_idx %= EQOS_DESCRIPTORS_TX;
1562 tx_desc->des0 = (ulong)eqos->tx_dma_buf;
1564 tx_desc->des2 = length;
1566 * Make sure that if HW sees the _OWN write below, it will see all the
1567 * writes to the rest of the descriptor too.
1570 tx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_FD | EQOS_DESC3_LD | length;
1571 eqos->config->ops->eqos_flush_desc(tx_desc);
1573 writel((ulong)(&(eqos->tx_descs[eqos->tx_desc_idx])),
1574 &eqos->dma_regs->ch0_txdesc_tail_pointer);
1576 for (i = 0; i < 1000000; i++) {
1577 eqos->config->ops->eqos_inval_desc(tx_desc);
1578 if (!(readl(&tx_desc->des3) & EQOS_DESC3_OWN))
1583 debug("%s: TX timeout\n", __func__);
1588 static int eqos_recv(struct udevice *dev, int flags, uchar **packetp)
1590 struct eqos_priv *eqos = dev_get_priv(dev);
1591 struct eqos_desc *rx_desc;
1594 debug("%s(dev=%p, flags=%x):\n", __func__, dev, flags);
1596 rx_desc = &(eqos->rx_descs[eqos->rx_desc_idx]);
1597 eqos->config->ops->eqos_inval_desc(rx_desc);
1598 if (rx_desc->des3 & EQOS_DESC3_OWN) {
1599 debug("%s: RX packet not available\n", __func__);
1603 *packetp = eqos->rx_dma_buf +
1604 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1605 length = rx_desc->des3 & 0x7fff;
1606 debug("%s: *packetp=%p, length=%d\n", __func__, *packetp, length);
1608 eqos->config->ops->eqos_inval_buffer(*packetp, length);
1613 static int eqos_free_pkt(struct udevice *dev, uchar *packet, int length)
1615 struct eqos_priv *eqos = dev_get_priv(dev);
1616 uchar *packet_expected;
1617 struct eqos_desc *rx_desc;
1619 debug("%s(packet=%p, length=%d)\n", __func__, packet, length);
1621 packet_expected = eqos->rx_dma_buf +
1622 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1623 if (packet != packet_expected) {
1624 debug("%s: Unexpected packet (expected %p)\n", __func__,
1629 eqos->config->ops->eqos_inval_buffer(packet, length);
1631 rx_desc = &(eqos->rx_descs[eqos->rx_desc_idx]);
1635 eqos->config->ops->eqos_flush_desc(rx_desc);
1636 eqos->config->ops->eqos_inval_buffer(packet, length);
1637 rx_desc->des0 = (u32)(ulong)packet;
1641 * Make sure that if HW sees the _OWN write below, it will see all the
1642 * writes to the rest of the descriptor too.
1645 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1646 eqos->config->ops->eqos_flush_desc(rx_desc);
1648 writel((ulong)rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1650 eqos->rx_desc_idx++;
1651 eqos->rx_desc_idx %= EQOS_DESCRIPTORS_RX;
1656 static int eqos_probe_resources_core(struct udevice *dev)
1658 struct eqos_priv *eqos = dev_get_priv(dev);
1661 debug("%s(dev=%p):\n", __func__, dev);
1663 eqos->descs = eqos_alloc_descs(EQOS_DESCRIPTORS_TX +
1664 EQOS_DESCRIPTORS_RX);
1666 debug("%s: eqos_alloc_descs() failed\n", __func__);
1670 eqos->tx_descs = (struct eqos_desc *)eqos->descs;
1671 eqos->rx_descs = (eqos->tx_descs + EQOS_DESCRIPTORS_TX);
1672 debug("%s: tx_descs=%p, rx_descs=%p\n", __func__, eqos->tx_descs,
1675 eqos->tx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_MAX_PACKET_SIZE);
1676 if (!eqos->tx_dma_buf) {
1677 debug("%s: memalign(tx_dma_buf) failed\n", __func__);
1679 goto err_free_descs;
1681 debug("%s: tx_dma_buf=%p\n", __func__, eqos->tx_dma_buf);
1683 eqos->rx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_RX_BUFFER_SIZE);
1684 if (!eqos->rx_dma_buf) {
1685 debug("%s: memalign(rx_dma_buf) failed\n", __func__);
1687 goto err_free_tx_dma_buf;
1689 debug("%s: rx_dma_buf=%p\n", __func__, eqos->rx_dma_buf);
1691 eqos->rx_pkt = malloc(EQOS_MAX_PACKET_SIZE);
1692 if (!eqos->rx_pkt) {
1693 debug("%s: malloc(rx_pkt) failed\n", __func__);
1695 goto err_free_rx_dma_buf;
1697 debug("%s: rx_pkt=%p\n", __func__, eqos->rx_pkt);
1699 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf,
1700 EQOS_MAX_PACKET_SIZE * EQOS_DESCRIPTORS_RX);
1702 debug("%s: OK\n", __func__);
1705 err_free_rx_dma_buf:
1706 free(eqos->rx_dma_buf);
1707 err_free_tx_dma_buf:
1708 free(eqos->tx_dma_buf);
1710 eqos_free_descs(eqos->descs);
1713 debug("%s: returns %d\n", __func__, ret);
1717 static int eqos_remove_resources_core(struct udevice *dev)
1719 struct eqos_priv *eqos = dev_get_priv(dev);
1721 debug("%s(dev=%p):\n", __func__, dev);
1724 free(eqos->rx_dma_buf);
1725 free(eqos->tx_dma_buf);
1726 eqos_free_descs(eqos->descs);
1728 debug("%s: OK\n", __func__);
1732 static int eqos_probe_resources_tegra186(struct udevice *dev)
1734 struct eqos_priv *eqos = dev_get_priv(dev);
1737 debug("%s(dev=%p):\n", __func__, dev);
1739 ret = reset_get_by_name(dev, "eqos", &eqos->reset_ctl);
1741 pr_err("reset_get_by_name(rst) failed: %d", ret);
1745 ret = gpio_request_by_name(dev, "phy-reset-gpios", 0,
1746 &eqos->phy_reset_gpio,
1747 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
1749 pr_err("gpio_request_by_name(phy reset) failed: %d", ret);
1750 goto err_free_reset_eqos;
1753 ret = clk_get_by_name(dev, "slave_bus", &eqos->clk_slave_bus);
1755 pr_err("clk_get_by_name(slave_bus) failed: %d", ret);
1756 goto err_free_gpio_phy_reset;
1759 ret = clk_get_by_name(dev, "master_bus", &eqos->clk_master_bus);
1761 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1762 goto err_free_clk_slave_bus;
1765 ret = clk_get_by_name(dev, "rx", &eqos->clk_rx);
1767 pr_err("clk_get_by_name(rx) failed: %d", ret);
1768 goto err_free_clk_master_bus;
1771 ret = clk_get_by_name(dev, "ptp_ref", &eqos->clk_ptp_ref);
1773 pr_err("clk_get_by_name(ptp_ref) failed: %d", ret);
1774 goto err_free_clk_rx;
1778 ret = clk_get_by_name(dev, "tx", &eqos->clk_tx);
1780 pr_err("clk_get_by_name(tx) failed: %d", ret);
1781 goto err_free_clk_ptp_ref;
1784 debug("%s: OK\n", __func__);
1787 err_free_clk_ptp_ref:
1788 clk_free(&eqos->clk_ptp_ref);
1790 clk_free(&eqos->clk_rx);
1791 err_free_clk_master_bus:
1792 clk_free(&eqos->clk_master_bus);
1793 err_free_clk_slave_bus:
1794 clk_free(&eqos->clk_slave_bus);
1795 err_free_gpio_phy_reset:
1796 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1797 err_free_reset_eqos:
1798 reset_free(&eqos->reset_ctl);
1800 debug("%s: returns %d\n", __func__, ret);
1804 /* board-specific Ethernet Interface initializations. */
1805 __weak int board_interface_eth_init(struct udevice *dev,
1806 phy_interface_t interface_type)
1811 static int eqos_probe_resources_stm32(struct udevice *dev)
1813 struct eqos_priv *eqos = dev_get_priv(dev);
1815 phy_interface_t interface;
1816 struct ofnode_phandle_args phandle_args;
1818 debug("%s(dev=%p):\n", __func__, dev);
1820 interface = eqos->config->interface(dev);
1822 if (interface == PHY_INTERFACE_MODE_NONE) {
1823 pr_err("Invalid PHY interface\n");
1827 ret = board_interface_eth_init(dev, interface);
1831 eqos->max_speed = dev_read_u32_default(dev, "max-speed", 0);
1833 ret = clk_get_by_name(dev, "stmmaceth", &eqos->clk_master_bus);
1835 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1839 ret = clk_get_by_name(dev, "mac-clk-rx", &eqos->clk_rx);
1841 pr_err("clk_get_by_name(rx) failed: %d", ret);
1842 goto err_free_clk_master_bus;
1845 ret = clk_get_by_name(dev, "mac-clk-tx", &eqos->clk_tx);
1847 pr_err("clk_get_by_name(tx) failed: %d", ret);
1848 goto err_free_clk_rx;
1851 /* Get ETH_CLK clocks (optional) */
1852 ret = clk_get_by_name(dev, "eth-ck", &eqos->clk_ck);
1854 pr_warn("No phy clock provided %d", ret);
1857 ret = dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
1860 /* search "reset-gpios" in phy node */
1861 ret = gpio_request_by_name_nodev(phandle_args.node,
1863 &eqos->phy_reset_gpio,
1865 GPIOD_IS_OUT_ACTIVE);
1867 pr_warn("gpio_request_by_name(phy reset) not provided %d",
1870 eqos->phyaddr = ofnode_read_u32_default(phandle_args.node,
1874 debug("%s: OK\n", __func__);
1878 clk_free(&eqos->clk_rx);
1879 err_free_clk_master_bus:
1880 clk_free(&eqos->clk_master_bus);
1883 debug("%s: returns %d\n", __func__, ret);
1887 static phy_interface_t eqos_get_interface_stm32(struct udevice *dev)
1889 const char *phy_mode;
1890 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
1892 debug("%s(dev=%p):\n", __func__, dev);
1894 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
1897 interface = phy_get_interface_by_name(phy_mode);
1902 static phy_interface_t eqos_get_interface_tegra186(struct udevice *dev)
1904 return PHY_INTERFACE_MODE_MII;
1907 static int eqos_probe_resources_imx(struct udevice *dev)
1909 struct eqos_priv *eqos = dev_get_priv(dev);
1910 phy_interface_t interface;
1912 debug("%s(dev=%p):\n", __func__, dev);
1914 interface = eqos->config->interface(dev);
1916 if (interface == PHY_INTERFACE_MODE_NONE) {
1917 pr_err("Invalid PHY interface\n");
1921 debug("%s: OK\n", __func__);
1925 static phy_interface_t eqos_get_interface_imx(struct udevice *dev)
1927 const char *phy_mode;
1928 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
1930 debug("%s(dev=%p):\n", __func__, dev);
1932 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
1935 interface = phy_get_interface_by_name(phy_mode);
1940 static int eqos_remove_resources_tegra186(struct udevice *dev)
1942 struct eqos_priv *eqos = dev_get_priv(dev);
1944 debug("%s(dev=%p):\n", __func__, dev);
1947 clk_free(&eqos->clk_tx);
1948 clk_free(&eqos->clk_ptp_ref);
1949 clk_free(&eqos->clk_rx);
1950 clk_free(&eqos->clk_slave_bus);
1951 clk_free(&eqos->clk_master_bus);
1953 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1954 reset_free(&eqos->reset_ctl);
1956 debug("%s: OK\n", __func__);
1960 static int eqos_remove_resources_stm32(struct udevice *dev)
1963 struct eqos_priv *eqos = dev_get_priv(dev);
1965 debug("%s(dev=%p):\n", __func__, dev);
1967 clk_free(&eqos->clk_tx);
1968 clk_free(&eqos->clk_rx);
1969 clk_free(&eqos->clk_master_bus);
1970 if (clk_valid(&eqos->clk_ck))
1971 clk_free(&eqos->clk_ck);
1974 if (dm_gpio_is_valid(&eqos->phy_reset_gpio))
1975 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1977 debug("%s: OK\n", __func__);
1981 static int eqos_remove_resources_imx(struct udevice *dev)
1986 static int eqos_probe(struct udevice *dev)
1988 struct eqos_priv *eqos = dev_get_priv(dev);
1991 debug("%s(dev=%p):\n", __func__, dev);
1994 eqos->config = (void *)dev_get_driver_data(dev);
1996 eqos->regs = devfdt_get_addr(dev);
1997 if (eqos->regs == FDT_ADDR_T_NONE) {
1998 pr_err("devfdt_get_addr() failed");
2001 eqos->mac_regs = (void *)(eqos->regs + EQOS_MAC_REGS_BASE);
2002 eqos->mtl_regs = (void *)(eqos->regs + EQOS_MTL_REGS_BASE);
2003 eqos->dma_regs = (void *)(eqos->regs + EQOS_DMA_REGS_BASE);
2004 eqos->tegra186_regs = (void *)(eqos->regs + EQOS_TEGRA186_REGS_BASE);
2006 ret = eqos_probe_resources_core(dev);
2008 pr_err("eqos_probe_resources_core() failed: %d", ret);
2012 ret = eqos->config->ops->eqos_probe_resources(dev);
2014 pr_err("eqos_probe_resources() failed: %d", ret);
2015 goto err_remove_resources_core;
2018 #ifdef CONFIG_DM_ETH_PHY
2019 eqos->mii = eth_phy_get_mdio_bus(dev);
2022 eqos->mii = mdio_alloc();
2024 pr_err("mdio_alloc() failed");
2026 goto err_remove_resources_tegra;
2028 eqos->mii->read = eqos_mdio_read;
2029 eqos->mii->write = eqos_mdio_write;
2030 eqos->mii->priv = eqos;
2031 strcpy(eqos->mii->name, dev->name);
2033 ret = mdio_register(eqos->mii);
2035 pr_err("mdio_register() failed: %d", ret);
2040 #ifdef CONFIG_DM_ETH_PHY
2041 eth_phy_set_mdio_bus(dev, eqos->mii);
2044 debug("%s: OK\n", __func__);
2048 mdio_free(eqos->mii);
2049 err_remove_resources_tegra:
2050 eqos->config->ops->eqos_remove_resources(dev);
2051 err_remove_resources_core:
2052 eqos_remove_resources_core(dev);
2054 debug("%s: returns %d\n", __func__, ret);
2058 static int eqos_remove(struct udevice *dev)
2060 struct eqos_priv *eqos = dev_get_priv(dev);
2062 debug("%s(dev=%p):\n", __func__, dev);
2064 mdio_unregister(eqos->mii);
2065 mdio_free(eqos->mii);
2066 eqos->config->ops->eqos_remove_resources(dev);
2068 eqos_probe_resources_core(dev);
2070 debug("%s: OK\n", __func__);
2074 static const struct eth_ops eqos_ops = {
2075 .start = eqos_start,
2079 .free_pkt = eqos_free_pkt,
2080 .write_hwaddr = eqos_write_hwaddr,
2081 .read_rom_hwaddr = eqos_read_rom_hwaddr,
2084 static struct eqos_ops eqos_tegra186_ops = {
2085 .eqos_inval_desc = eqos_inval_desc_tegra186,
2086 .eqos_flush_desc = eqos_flush_desc_tegra186,
2087 .eqos_inval_buffer = eqos_inval_buffer_tegra186,
2088 .eqos_flush_buffer = eqos_flush_buffer_tegra186,
2089 .eqos_probe_resources = eqos_probe_resources_tegra186,
2090 .eqos_remove_resources = eqos_remove_resources_tegra186,
2091 .eqos_stop_resets = eqos_stop_resets_tegra186,
2092 .eqos_start_resets = eqos_start_resets_tegra186,
2093 .eqos_stop_clks = eqos_stop_clks_tegra186,
2094 .eqos_start_clks = eqos_start_clks_tegra186,
2095 .eqos_calibrate_pads = eqos_calibrate_pads_tegra186,
2096 .eqos_disable_calibration = eqos_disable_calibration_tegra186,
2097 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_tegra186,
2098 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_tegra186
2101 static const struct eqos_config eqos_tegra186_config = {
2102 .reg_access_always_ok = false,
2105 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
2106 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_20_35,
2107 .interface = eqos_get_interface_tegra186,
2108 .ops = &eqos_tegra186_ops
2111 static struct eqos_ops eqos_stm32_ops = {
2112 .eqos_inval_desc = eqos_inval_desc_generic,
2113 .eqos_flush_desc = eqos_flush_desc_generic,
2114 .eqos_inval_buffer = eqos_inval_buffer_generic,
2115 .eqos_flush_buffer = eqos_flush_buffer_generic,
2116 .eqos_probe_resources = eqos_probe_resources_stm32,
2117 .eqos_remove_resources = eqos_remove_resources_stm32,
2118 .eqos_stop_resets = eqos_stop_resets_stm32,
2119 .eqos_start_resets = eqos_start_resets_stm32,
2120 .eqos_stop_clks = eqos_stop_clks_stm32,
2121 .eqos_start_clks = eqos_start_clks_stm32,
2122 .eqos_calibrate_pads = eqos_calibrate_pads_stm32,
2123 .eqos_disable_calibration = eqos_disable_calibration_stm32,
2124 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_stm32,
2125 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_stm32
2128 static const struct eqos_config eqos_stm32_config = {
2129 .reg_access_always_ok = false,
2132 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV,
2133 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
2134 .interface = eqos_get_interface_stm32,
2135 .ops = &eqos_stm32_ops
2138 static struct eqos_ops eqos_imx_ops = {
2139 .eqos_inval_desc = eqos_inval_desc_generic,
2140 .eqos_flush_desc = eqos_flush_desc_generic,
2141 .eqos_inval_buffer = eqos_inval_buffer_generic,
2142 .eqos_flush_buffer = eqos_flush_buffer_generic,
2143 .eqos_probe_resources = eqos_probe_resources_imx,
2144 .eqos_remove_resources = eqos_remove_resources_imx,
2145 .eqos_stop_resets = eqos_stop_resets_imx,
2146 .eqos_start_resets = eqos_start_resets_imx,
2147 .eqos_stop_clks = eqos_stop_clks_imx,
2148 .eqos_start_clks = eqos_start_clks_imx,
2149 .eqos_calibrate_pads = eqos_calibrate_pads_imx,
2150 .eqos_disable_calibration = eqos_disable_calibration_imx,
2151 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_imx,
2152 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx
2155 struct eqos_config eqos_imx_config = {
2156 .reg_access_always_ok = false,
2159 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
2160 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
2161 .interface = eqos_get_interface_imx,
2162 .ops = &eqos_imx_ops
2165 static const struct udevice_id eqos_ids[] = {
2167 .compatible = "nvidia,tegra186-eqos",
2168 .data = (ulong)&eqos_tegra186_config
2171 .compatible = "snps,dwmac-4.20a",
2172 .data = (ulong)&eqos_stm32_config
2175 .compatible = "fsl,imx-eqos",
2176 .data = (ulong)&eqos_imx_config
2182 U_BOOT_DRIVER(eth_eqos) = {
2185 .of_match = of_match_ptr(eqos_ids),
2186 .probe = eqos_probe,
2187 .remove = eqos_remove,
2189 .priv_auto_alloc_size = sizeof(struct eqos_priv),
2190 .platdata_auto_alloc_size = sizeof(struct eth_pdata),