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.
42 #include <asm/cache.h>
46 #ifdef CONFIG_ARCH_IMX8M
47 #include <asm/arch/clock.h>
48 #include <asm/mach-imx/sys_proto.h>
53 #define EQOS_MAC_REGS_BASE 0x000
54 struct eqos_mac_regs {
55 uint32_t configuration; /* 0x000 */
56 uint32_t unused_004[(0x070 - 0x004) / 4]; /* 0x004 */
57 uint32_t q0_tx_flow_ctrl; /* 0x070 */
58 uint32_t unused_070[(0x090 - 0x074) / 4]; /* 0x074 */
59 uint32_t rx_flow_ctrl; /* 0x090 */
60 uint32_t unused_094; /* 0x094 */
61 uint32_t txq_prty_map0; /* 0x098 */
62 uint32_t unused_09c; /* 0x09c */
63 uint32_t rxq_ctrl0; /* 0x0a0 */
64 uint32_t unused_0a4; /* 0x0a4 */
65 uint32_t rxq_ctrl2; /* 0x0a8 */
66 uint32_t unused_0ac[(0x0dc - 0x0ac) / 4]; /* 0x0ac */
67 uint32_t us_tic_counter; /* 0x0dc */
68 uint32_t unused_0e0[(0x11c - 0x0e0) / 4]; /* 0x0e0 */
69 uint32_t hw_feature0; /* 0x11c */
70 uint32_t hw_feature1; /* 0x120 */
71 uint32_t hw_feature2; /* 0x124 */
72 uint32_t unused_128[(0x200 - 0x128) / 4]; /* 0x128 */
73 uint32_t mdio_address; /* 0x200 */
74 uint32_t mdio_data; /* 0x204 */
75 uint32_t unused_208[(0x300 - 0x208) / 4]; /* 0x208 */
76 uint32_t address0_high; /* 0x300 */
77 uint32_t address0_low; /* 0x304 */
80 #define EQOS_MAC_CONFIGURATION_GPSLCE BIT(23)
81 #define EQOS_MAC_CONFIGURATION_CST BIT(21)
82 #define EQOS_MAC_CONFIGURATION_ACS BIT(20)
83 #define EQOS_MAC_CONFIGURATION_WD BIT(19)
84 #define EQOS_MAC_CONFIGURATION_JD BIT(17)
85 #define EQOS_MAC_CONFIGURATION_JE BIT(16)
86 #define EQOS_MAC_CONFIGURATION_PS BIT(15)
87 #define EQOS_MAC_CONFIGURATION_FES BIT(14)
88 #define EQOS_MAC_CONFIGURATION_DM BIT(13)
89 #define EQOS_MAC_CONFIGURATION_LM BIT(12)
90 #define EQOS_MAC_CONFIGURATION_TE BIT(1)
91 #define EQOS_MAC_CONFIGURATION_RE BIT(0)
93 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT 16
94 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_MASK 0xffff
95 #define EQOS_MAC_Q0_TX_FLOW_CTRL_TFE BIT(1)
97 #define EQOS_MAC_RX_FLOW_CTRL_RFE BIT(0)
99 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT 0
100 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK 0xff
102 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT 0
103 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK 3
104 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_NOT_ENABLED 0
105 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB 2
106 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV 1
108 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT 0
109 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK 0xff
111 #define EQOS_MAC_HW_FEATURE0_MMCSEL_SHIFT 8
112 #define EQOS_MAC_HW_FEATURE0_HDSEL_SHIFT 2
113 #define EQOS_MAC_HW_FEATURE0_GMIISEL_SHIFT 1
114 #define EQOS_MAC_HW_FEATURE0_MIISEL_SHIFT 0
116 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT 6
117 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK 0x1f
118 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT 0
119 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK 0x1f
121 #define EQOS_MAC_HW_FEATURE3_ASP_SHIFT 28
122 #define EQOS_MAC_HW_FEATURE3_ASP_MASK 0x3
124 #define EQOS_MAC_MDIO_ADDRESS_PA_SHIFT 21
125 #define EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT 16
126 #define EQOS_MAC_MDIO_ADDRESS_CR_SHIFT 8
127 #define EQOS_MAC_MDIO_ADDRESS_CR_20_35 2
128 #define EQOS_MAC_MDIO_ADDRESS_CR_250_300 5
129 #define EQOS_MAC_MDIO_ADDRESS_SKAP BIT(4)
130 #define EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT 2
131 #define EQOS_MAC_MDIO_ADDRESS_GOC_READ 3
132 #define EQOS_MAC_MDIO_ADDRESS_GOC_WRITE 1
133 #define EQOS_MAC_MDIO_ADDRESS_C45E BIT(1)
134 #define EQOS_MAC_MDIO_ADDRESS_GB BIT(0)
136 #define EQOS_MAC_MDIO_DATA_GD_MASK 0xffff
138 #define EQOS_MTL_REGS_BASE 0xd00
139 struct eqos_mtl_regs {
140 uint32_t txq0_operation_mode; /* 0xd00 */
141 uint32_t unused_d04; /* 0xd04 */
142 uint32_t txq0_debug; /* 0xd08 */
143 uint32_t unused_d0c[(0xd18 - 0xd0c) / 4]; /* 0xd0c */
144 uint32_t txq0_quantum_weight; /* 0xd18 */
145 uint32_t unused_d1c[(0xd30 - 0xd1c) / 4]; /* 0xd1c */
146 uint32_t rxq0_operation_mode; /* 0xd30 */
147 uint32_t unused_d34; /* 0xd34 */
148 uint32_t rxq0_debug; /* 0xd38 */
151 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT 16
152 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK 0x1ff
153 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT 2
154 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_MASK 3
155 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED 2
156 #define EQOS_MTL_TXQ0_OPERATION_MODE_TSF BIT(1)
157 #define EQOS_MTL_TXQ0_OPERATION_MODE_FTQ BIT(0)
159 #define EQOS_MTL_TXQ0_DEBUG_TXQSTS BIT(4)
160 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT 1
161 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK 3
163 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT 20
164 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK 0x3ff
165 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT 14
166 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK 0x3f
167 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT 8
168 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK 0x3f
169 #define EQOS_MTL_RXQ0_OPERATION_MODE_EHFC BIT(7)
170 #define EQOS_MTL_RXQ0_OPERATION_MODE_RSF BIT(5)
171 #define EQOS_MTL_RXQ0_OPERATION_MODE_FEP BIT(4)
172 #define EQOS_MTL_RXQ0_OPERATION_MODE_FUP BIT(3)
174 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT 16
175 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK 0x7fff
176 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT 4
177 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK 3
179 #define EQOS_DMA_REGS_BASE 0x1000
180 struct eqos_dma_regs {
181 uint32_t mode; /* 0x1000 */
182 uint32_t sysbus_mode; /* 0x1004 */
183 uint32_t unused_1008[(0x1100 - 0x1008) / 4]; /* 0x1008 */
184 uint32_t ch0_control; /* 0x1100 */
185 uint32_t ch0_tx_control; /* 0x1104 */
186 uint32_t ch0_rx_control; /* 0x1108 */
187 uint32_t unused_110c; /* 0x110c */
188 uint32_t ch0_txdesc_list_haddress; /* 0x1110 */
189 uint32_t ch0_txdesc_list_address; /* 0x1114 */
190 uint32_t ch0_rxdesc_list_haddress; /* 0x1118 */
191 uint32_t ch0_rxdesc_list_address; /* 0x111c */
192 uint32_t ch0_txdesc_tail_pointer; /* 0x1120 */
193 uint32_t unused_1124; /* 0x1124 */
194 uint32_t ch0_rxdesc_tail_pointer; /* 0x1128 */
195 uint32_t ch0_txdesc_ring_length; /* 0x112c */
196 uint32_t ch0_rxdesc_ring_length; /* 0x1130 */
199 #define EQOS_DMA_MODE_SWR BIT(0)
201 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT 16
202 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_MASK 0xf
203 #define EQOS_DMA_SYSBUS_MODE_EAME BIT(11)
204 #define EQOS_DMA_SYSBUS_MODE_BLEN16 BIT(3)
205 #define EQOS_DMA_SYSBUS_MODE_BLEN8 BIT(2)
206 #define EQOS_DMA_SYSBUS_MODE_BLEN4 BIT(1)
208 #define EQOS_DMA_CH0_CONTROL_PBLX8 BIT(16)
210 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT 16
211 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK 0x3f
212 #define EQOS_DMA_CH0_TX_CONTROL_OSP BIT(4)
213 #define EQOS_DMA_CH0_TX_CONTROL_ST BIT(0)
215 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT 16
216 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK 0x3f
217 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT 1
218 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK 0x3fff
219 #define EQOS_DMA_CH0_RX_CONTROL_SR BIT(0)
221 /* These registers are Tegra186-specific */
222 #define EQOS_TEGRA186_REGS_BASE 0x8800
223 struct eqos_tegra186_regs {
224 uint32_t sdmemcomppadctrl; /* 0x8800 */
225 uint32_t auto_cal_config; /* 0x8804 */
226 uint32_t unused_8808; /* 0x8808 */
227 uint32_t auto_cal_status; /* 0x880c */
230 #define EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD BIT(31)
232 #define EQOS_AUTO_CAL_CONFIG_START BIT(31)
233 #define EQOS_AUTO_CAL_CONFIG_ENABLE BIT(29)
235 #define EQOS_AUTO_CAL_STATUS_ACTIVE BIT(31)
239 #define EQOS_DESCRIPTOR_WORDS 4
240 #define EQOS_DESCRIPTOR_SIZE (EQOS_DESCRIPTOR_WORDS * 4)
241 /* We assume ARCH_DMA_MINALIGN >= 16; 16 is the EQOS HW minimum */
242 #define EQOS_DESCRIPTOR_ALIGN ARCH_DMA_MINALIGN
243 #define EQOS_DESCRIPTORS_TX 4
244 #define EQOS_DESCRIPTORS_RX 4
245 #define EQOS_DESCRIPTORS_NUM (EQOS_DESCRIPTORS_TX + EQOS_DESCRIPTORS_RX)
246 #define EQOS_DESCRIPTORS_SIZE ALIGN(EQOS_DESCRIPTORS_NUM * \
247 EQOS_DESCRIPTOR_SIZE, ARCH_DMA_MINALIGN)
248 #define EQOS_BUFFER_ALIGN ARCH_DMA_MINALIGN
249 #define EQOS_MAX_PACKET_SIZE ALIGN(1568, ARCH_DMA_MINALIGN)
250 #define EQOS_RX_BUFFER_SIZE (EQOS_DESCRIPTORS_RX * EQOS_MAX_PACKET_SIZE)
253 * Warn if the cache-line size is larger than the descriptor size. In such
254 * cases the driver will likely fail because the CPU needs to flush the cache
255 * when requeuing RX buffers, therefore descriptors written by the hardware
256 * may be discarded. Architectures with full IO coherence, such as x86, do not
257 * experience this issue, and hence are excluded from this condition.
259 * This can be fixed by defining CONFIG_SYS_NONCACHED_MEMORY which will cause
260 * the driver to allocate descriptors from a pool of non-cached memory.
262 #if EQOS_DESCRIPTOR_SIZE < ARCH_DMA_MINALIGN
263 #if !defined(CONFIG_SYS_NONCACHED_MEMORY) && \
264 !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) && !defined(CONFIG_X86)
265 #warning Cache line size is larger than descriptor size
276 #define EQOS_DESC3_OWN BIT(31)
277 #define EQOS_DESC3_FD BIT(29)
278 #define EQOS_DESC3_LD BIT(28)
279 #define EQOS_DESC3_BUF1V BIT(24)
282 bool reg_access_always_ok;
287 phy_interface_t (*interface)(struct udevice *dev);
288 struct eqos_ops *ops;
292 void (*eqos_inval_desc)(void *desc);
293 void (*eqos_flush_desc)(void *desc);
294 void (*eqos_inval_buffer)(void *buf, size_t size);
295 void (*eqos_flush_buffer)(void *buf, size_t size);
296 int (*eqos_probe_resources)(struct udevice *dev);
297 int (*eqos_remove_resources)(struct udevice *dev);
298 int (*eqos_stop_resets)(struct udevice *dev);
299 int (*eqos_start_resets)(struct udevice *dev);
300 void (*eqos_stop_clks)(struct udevice *dev);
301 int (*eqos_start_clks)(struct udevice *dev);
302 int (*eqos_calibrate_pads)(struct udevice *dev);
303 int (*eqos_disable_calibration)(struct udevice *dev);
304 int (*eqos_set_tx_clk_speed)(struct udevice *dev);
305 ulong (*eqos_get_tick_clk_rate)(struct udevice *dev);
310 const struct eqos_config *config;
312 struct eqos_mac_regs *mac_regs;
313 struct eqos_mtl_regs *mtl_regs;
314 struct eqos_dma_regs *dma_regs;
315 struct eqos_tegra186_regs *tegra186_regs;
316 struct reset_ctl reset_ctl;
317 struct gpio_desc phy_reset_gpio;
318 struct clk clk_master_bus;
320 struct clk clk_ptp_ref;
323 struct clk clk_slave_bus;
325 struct phy_device *phy;
329 struct eqos_desc *tx_descs;
330 struct eqos_desc *rx_descs;
331 int tx_desc_idx, rx_desc_idx;
340 * TX and RX descriptors are 16 bytes. This causes problems with the cache
341 * maintenance on CPUs where the cache-line size exceeds the size of these
342 * descriptors. What will happen is that when the driver receives a packet
343 * it will be immediately requeued for the hardware to reuse. The CPU will
344 * therefore need to flush the cache-line containing the descriptor, which
345 * will cause all other descriptors in the same cache-line to be flushed
346 * along with it. If one of those descriptors had been written to by the
347 * device those changes (and the associated packet) will be lost.
349 * To work around this, we make use of non-cached memory if available. If
350 * descriptors are mapped uncached there's no need to manually flush them
351 * or invalidate them.
353 * Note that this only applies to descriptors. The packet data buffers do
354 * not have the same constraints since they are 1536 bytes large, so they
355 * are unlikely to share cache-lines.
357 static void *eqos_alloc_descs(unsigned int num)
359 #ifdef CONFIG_SYS_NONCACHED_MEMORY
360 return (void *)noncached_alloc(EQOS_DESCRIPTORS_SIZE,
361 EQOS_DESCRIPTOR_ALIGN);
363 return memalign(EQOS_DESCRIPTOR_ALIGN, EQOS_DESCRIPTORS_SIZE);
367 static void eqos_free_descs(void *descs)
369 #ifdef CONFIG_SYS_NONCACHED_MEMORY
370 /* FIXME: noncached_alloc() has no opposite */
376 static void eqos_inval_desc_tegra186(void *desc)
378 #ifndef CONFIG_SYS_NONCACHED_MEMORY
379 unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
380 unsigned long end = ALIGN(start + EQOS_DESCRIPTOR_SIZE,
383 invalidate_dcache_range(start, end);
387 static void eqos_inval_desc_generic(void *desc)
389 #ifndef CONFIG_SYS_NONCACHED_MEMORY
390 unsigned long start = rounddown((unsigned long)desc, ARCH_DMA_MINALIGN);
391 unsigned long end = roundup((unsigned long)desc + EQOS_DESCRIPTOR_SIZE,
394 invalidate_dcache_range(start, end);
398 static void eqos_flush_desc_tegra186(void *desc)
400 #ifndef CONFIG_SYS_NONCACHED_MEMORY
401 flush_cache((unsigned long)desc, EQOS_DESCRIPTOR_SIZE);
405 static void eqos_flush_desc_generic(void *desc)
407 #ifndef CONFIG_SYS_NONCACHED_MEMORY
408 unsigned long start = rounddown((unsigned long)desc, ARCH_DMA_MINALIGN);
409 unsigned long end = roundup((unsigned long)desc + EQOS_DESCRIPTOR_SIZE,
412 flush_dcache_range(start, end);
416 static void eqos_inval_buffer_tegra186(void *buf, size_t size)
418 unsigned long start = (unsigned long)buf & ~(ARCH_DMA_MINALIGN - 1);
419 unsigned long end = ALIGN(start + size, ARCH_DMA_MINALIGN);
421 invalidate_dcache_range(start, end);
424 static void eqos_inval_buffer_generic(void *buf, size_t size)
426 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
427 unsigned long end = roundup((unsigned long)buf + size,
430 invalidate_dcache_range(start, end);
433 static void eqos_flush_buffer_tegra186(void *buf, size_t size)
435 flush_cache((unsigned long)buf, size);
438 static void eqos_flush_buffer_generic(void *buf, size_t size)
440 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
441 unsigned long end = roundup((unsigned long)buf + size,
444 flush_dcache_range(start, end);
447 static int eqos_mdio_wait_idle(struct eqos_priv *eqos)
449 return wait_for_bit_le32(&eqos->mac_regs->mdio_address,
450 EQOS_MAC_MDIO_ADDRESS_GB, false,
454 static int eqos_mdio_read(struct mii_dev *bus, int mdio_addr, int mdio_devad,
457 struct eqos_priv *eqos = bus->priv;
461 debug("%s(dev=%p, addr=%x, reg=%d):\n", __func__, eqos->dev, mdio_addr,
464 ret = eqos_mdio_wait_idle(eqos);
466 pr_err("MDIO not idle at entry");
470 val = readl(&eqos->mac_regs->mdio_address);
471 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
472 EQOS_MAC_MDIO_ADDRESS_C45E;
473 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
474 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
475 (eqos->config->config_mac_mdio <<
476 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
477 (EQOS_MAC_MDIO_ADDRESS_GOC_READ <<
478 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
479 EQOS_MAC_MDIO_ADDRESS_GB;
480 writel(val, &eqos->mac_regs->mdio_address);
482 udelay(eqos->config->mdio_wait);
484 ret = eqos_mdio_wait_idle(eqos);
486 pr_err("MDIO read didn't complete");
490 val = readl(&eqos->mac_regs->mdio_data);
491 val &= EQOS_MAC_MDIO_DATA_GD_MASK;
493 debug("%s: val=%x\n", __func__, val);
498 static int eqos_mdio_write(struct mii_dev *bus, int mdio_addr, int mdio_devad,
499 int mdio_reg, u16 mdio_val)
501 struct eqos_priv *eqos = bus->priv;
505 debug("%s(dev=%p, addr=%x, reg=%d, val=%x):\n", __func__, eqos->dev,
506 mdio_addr, mdio_reg, mdio_val);
508 ret = eqos_mdio_wait_idle(eqos);
510 pr_err("MDIO not idle at entry");
514 writel(mdio_val, &eqos->mac_regs->mdio_data);
516 val = readl(&eqos->mac_regs->mdio_address);
517 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
518 EQOS_MAC_MDIO_ADDRESS_C45E;
519 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
520 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
521 (eqos->config->config_mac_mdio <<
522 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
523 (EQOS_MAC_MDIO_ADDRESS_GOC_WRITE <<
524 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
525 EQOS_MAC_MDIO_ADDRESS_GB;
526 writel(val, &eqos->mac_regs->mdio_address);
528 udelay(eqos->config->mdio_wait);
530 ret = eqos_mdio_wait_idle(eqos);
532 pr_err("MDIO read didn't complete");
539 static int eqos_start_clks_tegra186(struct udevice *dev)
542 struct eqos_priv *eqos = dev_get_priv(dev);
545 debug("%s(dev=%p):\n", __func__, dev);
547 ret = clk_enable(&eqos->clk_slave_bus);
549 pr_err("clk_enable(clk_slave_bus) failed: %d", ret);
553 ret = clk_enable(&eqos->clk_master_bus);
555 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
556 goto err_disable_clk_slave_bus;
559 ret = clk_enable(&eqos->clk_rx);
561 pr_err("clk_enable(clk_rx) failed: %d", ret);
562 goto err_disable_clk_master_bus;
565 ret = clk_enable(&eqos->clk_ptp_ref);
567 pr_err("clk_enable(clk_ptp_ref) failed: %d", ret);
568 goto err_disable_clk_rx;
571 ret = clk_set_rate(&eqos->clk_ptp_ref, 125 * 1000 * 1000);
573 pr_err("clk_set_rate(clk_ptp_ref) failed: %d", ret);
574 goto err_disable_clk_ptp_ref;
577 ret = clk_enable(&eqos->clk_tx);
579 pr_err("clk_enable(clk_tx) failed: %d", ret);
580 goto err_disable_clk_ptp_ref;
584 debug("%s: OK\n", __func__);
588 err_disable_clk_ptp_ref:
589 clk_disable(&eqos->clk_ptp_ref);
591 clk_disable(&eqos->clk_rx);
592 err_disable_clk_master_bus:
593 clk_disable(&eqos->clk_master_bus);
594 err_disable_clk_slave_bus:
595 clk_disable(&eqos->clk_slave_bus);
597 debug("%s: FAILED: %d\n", __func__, ret);
602 static int eqos_start_clks_stm32(struct udevice *dev)
605 struct eqos_priv *eqos = dev_get_priv(dev);
608 debug("%s(dev=%p):\n", __func__, dev);
610 ret = clk_enable(&eqos->clk_master_bus);
612 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
616 ret = clk_enable(&eqos->clk_rx);
618 pr_err("clk_enable(clk_rx) failed: %d", ret);
619 goto err_disable_clk_master_bus;
622 ret = clk_enable(&eqos->clk_tx);
624 pr_err("clk_enable(clk_tx) failed: %d", ret);
625 goto err_disable_clk_rx;
628 if (clk_valid(&eqos->clk_ck)) {
629 ret = clk_enable(&eqos->clk_ck);
631 pr_err("clk_enable(clk_ck) failed: %d", ret);
632 goto err_disable_clk_tx;
637 debug("%s: OK\n", __func__);
642 clk_disable(&eqos->clk_tx);
644 clk_disable(&eqos->clk_rx);
645 err_disable_clk_master_bus:
646 clk_disable(&eqos->clk_master_bus);
648 debug("%s: FAILED: %d\n", __func__, ret);
653 static int eqos_start_clks_imx(struct udevice *dev)
658 static void eqos_stop_clks_tegra186(struct udevice *dev)
661 struct eqos_priv *eqos = dev_get_priv(dev);
663 debug("%s(dev=%p):\n", __func__, dev);
665 clk_disable(&eqos->clk_tx);
666 clk_disable(&eqos->clk_ptp_ref);
667 clk_disable(&eqos->clk_rx);
668 clk_disable(&eqos->clk_master_bus);
669 clk_disable(&eqos->clk_slave_bus);
672 debug("%s: OK\n", __func__);
675 static void eqos_stop_clks_stm32(struct udevice *dev)
678 struct eqos_priv *eqos = dev_get_priv(dev);
680 debug("%s(dev=%p):\n", __func__, dev);
682 clk_disable(&eqos->clk_tx);
683 clk_disable(&eqos->clk_rx);
684 clk_disable(&eqos->clk_master_bus);
685 if (clk_valid(&eqos->clk_ck))
686 clk_disable(&eqos->clk_ck);
689 debug("%s: OK\n", __func__);
692 static void eqos_stop_clks_imx(struct udevice *dev)
697 static int eqos_start_resets_tegra186(struct udevice *dev)
699 struct eqos_priv *eqos = dev_get_priv(dev);
702 debug("%s(dev=%p):\n", __func__, dev);
704 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
706 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d", ret);
712 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
714 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d", ret);
718 ret = reset_assert(&eqos->reset_ctl);
720 pr_err("reset_assert() failed: %d", ret);
726 ret = reset_deassert(&eqos->reset_ctl);
728 pr_err("reset_deassert() failed: %d", ret);
732 debug("%s: OK\n", __func__);
736 static int eqos_start_resets_stm32(struct udevice *dev)
738 struct eqos_priv *eqos = dev_get_priv(dev);
741 debug("%s(dev=%p):\n", __func__, dev);
742 if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
743 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
745 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d",
752 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
754 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d",
759 debug("%s: OK\n", __func__);
764 static int eqos_start_resets_imx(struct udevice *dev)
769 static int eqos_stop_resets_tegra186(struct udevice *dev)
771 struct eqos_priv *eqos = dev_get_priv(dev);
773 reset_assert(&eqos->reset_ctl);
774 dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
779 static int eqos_stop_resets_stm32(struct udevice *dev)
781 struct eqos_priv *eqos = dev_get_priv(dev);
784 if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
785 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
787 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d",
796 static int eqos_stop_resets_imx(struct udevice *dev)
801 static int eqos_calibrate_pads_tegra186(struct udevice *dev)
803 struct eqos_priv *eqos = dev_get_priv(dev);
806 debug("%s(dev=%p):\n", __func__, dev);
808 setbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
809 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
813 setbits_le32(&eqos->tegra186_regs->auto_cal_config,
814 EQOS_AUTO_CAL_CONFIG_START | EQOS_AUTO_CAL_CONFIG_ENABLE);
816 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
817 EQOS_AUTO_CAL_STATUS_ACTIVE, true, 10, false);
819 pr_err("calibrate didn't start");
823 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
824 EQOS_AUTO_CAL_STATUS_ACTIVE, false, 10, false);
826 pr_err("calibrate didn't finish");
833 clrbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
834 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
836 debug("%s: returns %d\n", __func__, ret);
841 static int eqos_disable_calibration_tegra186(struct udevice *dev)
843 struct eqos_priv *eqos = dev_get_priv(dev);
845 debug("%s(dev=%p):\n", __func__, dev);
847 clrbits_le32(&eqos->tegra186_regs->auto_cal_config,
848 EQOS_AUTO_CAL_CONFIG_ENABLE);
853 static ulong eqos_get_tick_clk_rate_tegra186(struct udevice *dev)
856 struct eqos_priv *eqos = dev_get_priv(dev);
858 return clk_get_rate(&eqos->clk_slave_bus);
864 static ulong eqos_get_tick_clk_rate_stm32(struct udevice *dev)
867 struct eqos_priv *eqos = dev_get_priv(dev);
869 return clk_get_rate(&eqos->clk_master_bus);
875 __weak u32 imx_get_eqos_csr_clk(void)
877 return 100 * 1000000;
879 __weak int imx_eqos_txclk_set_rate(unsigned long rate)
884 static ulong eqos_get_tick_clk_rate_imx(struct udevice *dev)
886 return imx_get_eqos_csr_clk();
889 static int eqos_calibrate_pads_stm32(struct udevice *dev)
894 static int eqos_calibrate_pads_imx(struct udevice *dev)
899 static int eqos_disable_calibration_stm32(struct udevice *dev)
904 static int eqos_disable_calibration_imx(struct udevice *dev)
909 static int eqos_set_full_duplex(struct udevice *dev)
911 struct eqos_priv *eqos = dev_get_priv(dev);
913 debug("%s(dev=%p):\n", __func__, dev);
915 setbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
920 static int eqos_set_half_duplex(struct udevice *dev)
922 struct eqos_priv *eqos = dev_get_priv(dev);
924 debug("%s(dev=%p):\n", __func__, dev);
926 clrbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
928 /* WAR: Flush TX queue when switching to half-duplex */
929 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
930 EQOS_MTL_TXQ0_OPERATION_MODE_FTQ);
935 static int eqos_set_gmii_speed(struct udevice *dev)
937 struct eqos_priv *eqos = dev_get_priv(dev);
939 debug("%s(dev=%p):\n", __func__, dev);
941 clrbits_le32(&eqos->mac_regs->configuration,
942 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
947 static int eqos_set_mii_speed_100(struct udevice *dev)
949 struct eqos_priv *eqos = dev_get_priv(dev);
951 debug("%s(dev=%p):\n", __func__, dev);
953 setbits_le32(&eqos->mac_regs->configuration,
954 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
959 static int eqos_set_mii_speed_10(struct udevice *dev)
961 struct eqos_priv *eqos = dev_get_priv(dev);
963 debug("%s(dev=%p):\n", __func__, dev);
965 clrsetbits_le32(&eqos->mac_regs->configuration,
966 EQOS_MAC_CONFIGURATION_FES, EQOS_MAC_CONFIGURATION_PS);
971 static int eqos_set_tx_clk_speed_tegra186(struct udevice *dev)
974 struct eqos_priv *eqos = dev_get_priv(dev);
978 debug("%s(dev=%p):\n", __func__, dev);
980 switch (eqos->phy->speed) {
982 rate = 125 * 1000 * 1000;
985 rate = 25 * 1000 * 1000;
988 rate = 2.5 * 1000 * 1000;
991 pr_err("invalid speed %d", eqos->phy->speed);
995 ret = clk_set_rate(&eqos->clk_tx, rate);
997 pr_err("clk_set_rate(tx_clk, %lu) failed: %d", rate, ret);
1005 static int eqos_set_tx_clk_speed_stm32(struct udevice *dev)
1010 static int eqos_set_tx_clk_speed_imx(struct udevice *dev)
1012 struct eqos_priv *eqos = dev_get_priv(dev);
1016 debug("%s(dev=%p):\n", __func__, dev);
1018 switch (eqos->phy->speed) {
1020 rate = 125 * 1000 * 1000;
1023 rate = 25 * 1000 * 1000;
1026 rate = 2.5 * 1000 * 1000;
1029 pr_err("invalid speed %d", eqos->phy->speed);
1033 ret = imx_eqos_txclk_set_rate(rate);
1035 pr_err("imx (tx_clk, %lu) failed: %d", rate, ret);
1042 static int eqos_adjust_link(struct udevice *dev)
1044 struct eqos_priv *eqos = dev_get_priv(dev);
1046 bool en_calibration;
1048 debug("%s(dev=%p):\n", __func__, dev);
1050 if (eqos->phy->duplex)
1051 ret = eqos_set_full_duplex(dev);
1053 ret = eqos_set_half_duplex(dev);
1055 pr_err("eqos_set_*_duplex() failed: %d", ret);
1059 switch (eqos->phy->speed) {
1061 en_calibration = true;
1062 ret = eqos_set_gmii_speed(dev);
1065 en_calibration = true;
1066 ret = eqos_set_mii_speed_100(dev);
1069 en_calibration = false;
1070 ret = eqos_set_mii_speed_10(dev);
1073 pr_err("invalid speed %d", eqos->phy->speed);
1077 pr_err("eqos_set_*mii_speed*() failed: %d", ret);
1081 if (en_calibration) {
1082 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1084 pr_err("eqos_calibrate_pads() failed: %d",
1089 ret = eqos->config->ops->eqos_disable_calibration(dev);
1091 pr_err("eqos_disable_calibration() failed: %d",
1096 ret = eqos->config->ops->eqos_set_tx_clk_speed(dev);
1098 pr_err("eqos_set_tx_clk_speed() failed: %d", ret);
1105 static int eqos_write_hwaddr(struct udevice *dev)
1107 struct eth_pdata *plat = dev_get_platdata(dev);
1108 struct eqos_priv *eqos = dev_get_priv(dev);
1112 * This function may be called before start() or after stop(). At that
1113 * time, on at least some configurations of the EQoS HW, all clocks to
1114 * the EQoS HW block will be stopped, and a reset signal applied. If
1115 * any register access is attempted in this state, bus timeouts or CPU
1116 * hangs may occur. This check prevents that.
1118 * A simple solution to this problem would be to not implement
1119 * write_hwaddr(), since start() always writes the MAC address into HW
1120 * anyway. However, it is desirable to implement write_hwaddr() to
1121 * support the case of SW that runs subsequent to U-Boot which expects
1122 * the MAC address to already be programmed into the EQoS registers,
1123 * which must happen irrespective of whether the U-Boot user (or
1124 * scripts) actually made use of the EQoS device, and hence
1125 * irrespective of whether start() was ever called.
1127 * Note that this requirement by subsequent SW is not valid for
1128 * Tegra186, and is likely not valid for any non-PCI instantiation of
1129 * the EQoS HW block. This function is implemented solely as
1130 * future-proofing with the expectation the driver will eventually be
1131 * ported to some system where the expectation above is true.
1133 if (!eqos->config->reg_access_always_ok && !eqos->reg_access_ok)
1136 /* Update the MAC address */
1137 val = (plat->enetaddr[5] << 8) |
1138 (plat->enetaddr[4]);
1139 writel(val, &eqos->mac_regs->address0_high);
1140 val = (plat->enetaddr[3] << 24) |
1141 (plat->enetaddr[2] << 16) |
1142 (plat->enetaddr[1] << 8) |
1143 (plat->enetaddr[0]);
1144 writel(val, &eqos->mac_regs->address0_low);
1149 static int eqos_read_rom_hwaddr(struct udevice *dev)
1151 struct eth_pdata *pdata = dev_get_platdata(dev);
1153 #ifdef CONFIG_ARCH_IMX8M
1154 imx_get_mac_from_fuse(dev->req_seq, pdata->enetaddr);
1156 return !is_valid_ethaddr(pdata->enetaddr);
1159 static int eqos_start(struct udevice *dev)
1161 struct eqos_priv *eqos = dev_get_priv(dev);
1164 u32 val, tx_fifo_sz, rx_fifo_sz, tqs, rqs, pbl;
1167 debug("%s(dev=%p):\n", __func__, dev);
1169 eqos->tx_desc_idx = 0;
1170 eqos->rx_desc_idx = 0;
1172 ret = eqos->config->ops->eqos_start_clks(dev);
1174 pr_err("eqos_start_clks() failed: %d", ret);
1178 ret = eqos->config->ops->eqos_start_resets(dev);
1180 pr_err("eqos_start_resets() failed: %d", ret);
1186 eqos->reg_access_ok = true;
1188 ret = wait_for_bit_le32(&eqos->dma_regs->mode,
1189 EQOS_DMA_MODE_SWR, false,
1190 eqos->config->swr_wait, false);
1192 pr_err("EQOS_DMA_MODE_SWR stuck");
1193 goto err_stop_resets;
1196 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1198 pr_err("eqos_calibrate_pads() failed: %d", ret);
1199 goto err_stop_resets;
1201 rate = eqos->config->ops->eqos_get_tick_clk_rate(dev);
1203 val = (rate / 1000000) - 1;
1204 writel(val, &eqos->mac_regs->us_tic_counter);
1207 * if PHY was already connected and configured,
1208 * don't need to reconnect/reconfigure again
1212 #ifdef CONFIG_DM_ETH_PHY
1213 addr = eth_phy_get_addr(dev);
1215 #ifdef DWC_NET_PHYADDR
1216 addr = DWC_NET_PHYADDR;
1218 eqos->phy = phy_connect(eqos->mii, addr, dev,
1219 eqos->config->interface(dev));
1221 pr_err("phy_connect() failed");
1222 goto err_stop_resets;
1225 if (eqos->max_speed) {
1226 ret = phy_set_supported(eqos->phy, eqos->max_speed);
1228 pr_err("phy_set_supported() failed: %d", ret);
1229 goto err_shutdown_phy;
1233 ret = phy_config(eqos->phy);
1235 pr_err("phy_config() failed: %d", ret);
1236 goto err_shutdown_phy;
1240 ret = phy_startup(eqos->phy);
1242 pr_err("phy_startup() failed: %d", ret);
1243 goto err_shutdown_phy;
1246 if (!eqos->phy->link) {
1248 goto err_shutdown_phy;
1251 ret = eqos_adjust_link(dev);
1253 pr_err("eqos_adjust_link() failed: %d", ret);
1254 goto err_shutdown_phy;
1258 writel(0x60, &eqos->mtl_regs->txq0_quantum_weight - 0x100);
1260 /* Enable Store and Forward mode for TX */
1261 /* Program Tx operating mode */
1262 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1263 EQOS_MTL_TXQ0_OPERATION_MODE_TSF |
1264 (EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED <<
1265 EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT));
1267 /* Transmit Queue weight */
1268 writel(0x10, &eqos->mtl_regs->txq0_quantum_weight);
1270 /* Enable Store and Forward mode for RX, since no jumbo frame */
1271 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1272 EQOS_MTL_RXQ0_OPERATION_MODE_RSF |
1273 EQOS_MTL_RXQ0_OPERATION_MODE_FEP |
1274 EQOS_MTL_RXQ0_OPERATION_MODE_FUP);
1276 /* Transmit/Receive queue fifo size; use all RAM for 1 queue */
1277 val = readl(&eqos->mac_regs->hw_feature1);
1278 tx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT) &
1279 EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK;
1280 rx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT) &
1281 EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK;
1284 * r/tx_fifo_sz is encoded as log2(n / 128). Undo that by shifting.
1285 * r/tqs is encoded as (n / 256) - 1.
1287 tqs = (128 << tx_fifo_sz) / 256 - 1;
1288 rqs = (128 << rx_fifo_sz) / 256 - 1;
1290 clrsetbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1291 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK <<
1292 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT,
1293 tqs << EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT);
1294 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1295 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK <<
1296 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT,
1297 rqs << EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT);
1299 /* Flow control used only if each channel gets 4KB or more FIFO */
1300 if (rqs >= ((4096 / 256) - 1)) {
1303 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1304 EQOS_MTL_RXQ0_OPERATION_MODE_EHFC);
1307 * Set Threshold for Activating Flow Contol space for min 2
1308 * frames ie, (1500 * 1) = 1500 bytes.
1310 * Set Threshold for Deactivating Flow Contol for space of
1311 * min 1 frame (frame size 1500bytes) in receive fifo
1313 if (rqs == ((4096 / 256) - 1)) {
1315 * This violates the above formula because of FIFO size
1316 * limit therefore overflow may occur inspite of this.
1318 rfd = 0x3; /* Full-3K */
1319 rfa = 0x1; /* Full-1.5K */
1320 } else if (rqs == ((8192 / 256) - 1)) {
1321 rfd = 0x6; /* Full-4K */
1322 rfa = 0xa; /* Full-6K */
1323 } else if (rqs == ((16384 / 256) - 1)) {
1324 rfd = 0x6; /* Full-4K */
1325 rfa = 0x12; /* Full-10K */
1327 rfd = 0x6; /* Full-4K */
1328 rfa = 0x1E; /* Full-16K */
1331 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1332 (EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK <<
1333 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1334 (EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK <<
1335 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT),
1337 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1339 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT));
1344 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1345 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1346 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1347 eqos->config->config_mac <<
1348 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1350 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1351 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1352 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1354 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1356 /* Multicast and Broadcast Queue Enable */
1357 setbits_le32(&eqos->mac_regs->unused_0a4,
1359 /* enable promise mode */
1360 setbits_le32(&eqos->mac_regs->unused_004[1],
1363 /* Set TX flow control parameters */
1364 /* Set Pause Time */
1365 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1366 0xffff << EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT);
1367 /* Assign priority for TX flow control */
1368 clrbits_le32(&eqos->mac_regs->txq_prty_map0,
1369 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK <<
1370 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT);
1371 /* Assign priority for RX flow control */
1372 clrbits_le32(&eqos->mac_regs->rxq_ctrl2,
1373 EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK <<
1374 EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT);
1375 /* Enable flow control */
1376 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1377 EQOS_MAC_Q0_TX_FLOW_CTRL_TFE);
1378 setbits_le32(&eqos->mac_regs->rx_flow_ctrl,
1379 EQOS_MAC_RX_FLOW_CTRL_RFE);
1381 clrsetbits_le32(&eqos->mac_regs->configuration,
1382 EQOS_MAC_CONFIGURATION_GPSLCE |
1383 EQOS_MAC_CONFIGURATION_WD |
1384 EQOS_MAC_CONFIGURATION_JD |
1385 EQOS_MAC_CONFIGURATION_JE,
1386 EQOS_MAC_CONFIGURATION_CST |
1387 EQOS_MAC_CONFIGURATION_ACS);
1389 eqos_write_hwaddr(dev);
1393 /* Enable OSP mode */
1394 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1395 EQOS_DMA_CH0_TX_CONTROL_OSP);
1397 /* RX buffer size. Must be a multiple of bus width */
1398 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1399 EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK <<
1400 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT,
1401 EQOS_MAX_PACKET_SIZE <<
1402 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT);
1404 setbits_le32(&eqos->dma_regs->ch0_control,
1405 EQOS_DMA_CH0_CONTROL_PBLX8);
1408 * Burst length must be < 1/2 FIFO size.
1409 * FIFO size in tqs is encoded as (n / 256) - 1.
1410 * Each burst is n * 8 (PBLX8) * 16 (AXI width) == 128 bytes.
1411 * Half of n * 256 is n * 128, so pbl == tqs, modulo the -1.
1416 clrsetbits_le32(&eqos->dma_regs->ch0_tx_control,
1417 EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK <<
1418 EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT,
1419 pbl << EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT);
1421 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1422 EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK <<
1423 EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT,
1424 8 << EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT);
1426 /* DMA performance configuration */
1427 val = (2 << EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT) |
1428 EQOS_DMA_SYSBUS_MODE_EAME | EQOS_DMA_SYSBUS_MODE_BLEN16 |
1429 EQOS_DMA_SYSBUS_MODE_BLEN8 | EQOS_DMA_SYSBUS_MODE_BLEN4;
1430 writel(val, &eqos->dma_regs->sysbus_mode);
1432 /* Set up descriptors */
1434 memset(eqos->descs, 0, EQOS_DESCRIPTORS_SIZE);
1435 for (i = 0; i < EQOS_DESCRIPTORS_RX; i++) {
1436 struct eqos_desc *rx_desc = &(eqos->rx_descs[i]);
1437 rx_desc->des0 = (u32)(ulong)(eqos->rx_dma_buf +
1438 (i * EQOS_MAX_PACKET_SIZE));
1439 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1441 eqos->config->ops->eqos_flush_desc(rx_desc);
1442 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf +
1443 (i * EQOS_MAX_PACKET_SIZE),
1444 EQOS_MAX_PACKET_SIZE);
1447 writel(0, &eqos->dma_regs->ch0_txdesc_list_haddress);
1448 writel((ulong)eqos->tx_descs, &eqos->dma_regs->ch0_txdesc_list_address);
1449 writel(EQOS_DESCRIPTORS_TX - 1,
1450 &eqos->dma_regs->ch0_txdesc_ring_length);
1452 writel(0, &eqos->dma_regs->ch0_rxdesc_list_haddress);
1453 writel((ulong)eqos->rx_descs, &eqos->dma_regs->ch0_rxdesc_list_address);
1454 writel(EQOS_DESCRIPTORS_RX - 1,
1455 &eqos->dma_regs->ch0_rxdesc_ring_length);
1457 /* Enable everything */
1458 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1459 EQOS_DMA_CH0_TX_CONTROL_ST);
1460 setbits_le32(&eqos->dma_regs->ch0_rx_control,
1461 EQOS_DMA_CH0_RX_CONTROL_SR);
1462 setbits_le32(&eqos->mac_regs->configuration,
1463 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1465 /* TX tail pointer not written until we need to TX a packet */
1467 * Point RX tail pointer at last descriptor. Ideally, we'd point at the
1468 * first descriptor, implying all descriptors were available. However,
1469 * that's not distinguishable from none of the descriptors being
1472 last_rx_desc = (ulong)&(eqos->rx_descs[(EQOS_DESCRIPTORS_RX - 1)]);
1473 writel(last_rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1475 eqos->started = true;
1477 debug("%s: OK\n", __func__);
1481 phy_shutdown(eqos->phy);
1483 eqos->config->ops->eqos_stop_resets(dev);
1485 eqos->config->ops->eqos_stop_clks(dev);
1487 pr_err("FAILED: %d", ret);
1491 static void eqos_stop(struct udevice *dev)
1493 struct eqos_priv *eqos = dev_get_priv(dev);
1496 debug("%s(dev=%p):\n", __func__, dev);
1500 eqos->started = false;
1501 eqos->reg_access_ok = false;
1503 /* Disable TX DMA */
1504 clrbits_le32(&eqos->dma_regs->ch0_tx_control,
1505 EQOS_DMA_CH0_TX_CONTROL_ST);
1507 /* Wait for TX all packets to drain out of MTL */
1508 for (i = 0; i < 1000000; i++) {
1509 u32 val = readl(&eqos->mtl_regs->txq0_debug);
1510 u32 trcsts = (val >> EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT) &
1511 EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK;
1512 u32 txqsts = val & EQOS_MTL_TXQ0_DEBUG_TXQSTS;
1513 if ((trcsts != 1) && (!txqsts))
1517 /* Turn off MAC TX and RX */
1518 clrbits_le32(&eqos->mac_regs->configuration,
1519 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1521 /* Wait for all RX packets to drain out of MTL */
1522 for (i = 0; i < 1000000; i++) {
1523 u32 val = readl(&eqos->mtl_regs->rxq0_debug);
1524 u32 prxq = (val >> EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT) &
1525 EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK;
1526 u32 rxqsts = (val >> EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT) &
1527 EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK;
1528 if ((!prxq) && (!rxqsts))
1532 /* Turn off RX DMA */
1533 clrbits_le32(&eqos->dma_regs->ch0_rx_control,
1534 EQOS_DMA_CH0_RX_CONTROL_SR);
1537 phy_shutdown(eqos->phy);
1539 eqos->config->ops->eqos_stop_resets(dev);
1540 eqos->config->ops->eqos_stop_clks(dev);
1542 debug("%s: OK\n", __func__);
1545 static int eqos_send(struct udevice *dev, void *packet, int length)
1547 struct eqos_priv *eqos = dev_get_priv(dev);
1548 struct eqos_desc *tx_desc;
1551 debug("%s(dev=%p, packet=%p, length=%d):\n", __func__, dev, packet,
1554 memcpy(eqos->tx_dma_buf, packet, length);
1555 eqos->config->ops->eqos_flush_buffer(eqos->tx_dma_buf, length);
1557 tx_desc = &(eqos->tx_descs[eqos->tx_desc_idx]);
1558 eqos->tx_desc_idx++;
1559 eqos->tx_desc_idx %= EQOS_DESCRIPTORS_TX;
1561 tx_desc->des0 = (ulong)eqos->tx_dma_buf;
1563 tx_desc->des2 = length;
1565 * Make sure that if HW sees the _OWN write below, it will see all the
1566 * writes to the rest of the descriptor too.
1569 tx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_FD | EQOS_DESC3_LD | length;
1570 eqos->config->ops->eqos_flush_desc(tx_desc);
1572 writel((ulong)(&(eqos->tx_descs[eqos->tx_desc_idx])),
1573 &eqos->dma_regs->ch0_txdesc_tail_pointer);
1575 for (i = 0; i < 1000000; i++) {
1576 eqos->config->ops->eqos_inval_desc(tx_desc);
1577 if (!(readl(&tx_desc->des3) & EQOS_DESC3_OWN))
1582 debug("%s: TX timeout\n", __func__);
1587 static int eqos_recv(struct udevice *dev, int flags, uchar **packetp)
1589 struct eqos_priv *eqos = dev_get_priv(dev);
1590 struct eqos_desc *rx_desc;
1593 debug("%s(dev=%p, flags=%x):\n", __func__, dev, flags);
1595 rx_desc = &(eqos->rx_descs[eqos->rx_desc_idx]);
1596 eqos->config->ops->eqos_inval_desc(rx_desc);
1597 if (rx_desc->des3 & EQOS_DESC3_OWN) {
1598 debug("%s: RX packet not available\n", __func__);
1602 *packetp = eqos->rx_dma_buf +
1603 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1604 length = rx_desc->des3 & 0x7fff;
1605 debug("%s: *packetp=%p, length=%d\n", __func__, *packetp, length);
1607 eqos->config->ops->eqos_inval_buffer(*packetp, length);
1612 static int eqos_free_pkt(struct udevice *dev, uchar *packet, int length)
1614 struct eqos_priv *eqos = dev_get_priv(dev);
1615 uchar *packet_expected;
1616 struct eqos_desc *rx_desc;
1618 debug("%s(packet=%p, length=%d)\n", __func__, packet, length);
1620 packet_expected = eqos->rx_dma_buf +
1621 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1622 if (packet != packet_expected) {
1623 debug("%s: Unexpected packet (expected %p)\n", __func__,
1628 eqos->config->ops->eqos_inval_buffer(packet, length);
1630 rx_desc = &(eqos->rx_descs[eqos->rx_desc_idx]);
1634 eqos->config->ops->eqos_flush_desc(rx_desc);
1635 eqos->config->ops->eqos_inval_buffer(packet, length);
1636 rx_desc->des0 = (u32)(ulong)packet;
1640 * Make sure that if HW sees the _OWN write below, it will see all the
1641 * writes to the rest of the descriptor too.
1644 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1645 eqos->config->ops->eqos_flush_desc(rx_desc);
1647 writel((ulong)rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1649 eqos->rx_desc_idx++;
1650 eqos->rx_desc_idx %= EQOS_DESCRIPTORS_RX;
1655 static int eqos_probe_resources_core(struct udevice *dev)
1657 struct eqos_priv *eqos = dev_get_priv(dev);
1660 debug("%s(dev=%p):\n", __func__, dev);
1662 eqos->descs = eqos_alloc_descs(EQOS_DESCRIPTORS_TX +
1663 EQOS_DESCRIPTORS_RX);
1665 debug("%s: eqos_alloc_descs() failed\n", __func__);
1669 eqos->tx_descs = (struct eqos_desc *)eqos->descs;
1670 eqos->rx_descs = (eqos->tx_descs + EQOS_DESCRIPTORS_TX);
1671 debug("%s: tx_descs=%p, rx_descs=%p\n", __func__, eqos->tx_descs,
1674 eqos->tx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_MAX_PACKET_SIZE);
1675 if (!eqos->tx_dma_buf) {
1676 debug("%s: memalign(tx_dma_buf) failed\n", __func__);
1678 goto err_free_descs;
1680 debug("%s: tx_dma_buf=%p\n", __func__, eqos->tx_dma_buf);
1682 eqos->rx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_RX_BUFFER_SIZE);
1683 if (!eqos->rx_dma_buf) {
1684 debug("%s: memalign(rx_dma_buf) failed\n", __func__);
1686 goto err_free_tx_dma_buf;
1688 debug("%s: rx_dma_buf=%p\n", __func__, eqos->rx_dma_buf);
1690 eqos->rx_pkt = malloc(EQOS_MAX_PACKET_SIZE);
1691 if (!eqos->rx_pkt) {
1692 debug("%s: malloc(rx_pkt) failed\n", __func__);
1694 goto err_free_rx_dma_buf;
1696 debug("%s: rx_pkt=%p\n", __func__, eqos->rx_pkt);
1698 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf,
1699 EQOS_MAX_PACKET_SIZE * EQOS_DESCRIPTORS_RX);
1701 debug("%s: OK\n", __func__);
1704 err_free_rx_dma_buf:
1705 free(eqos->rx_dma_buf);
1706 err_free_tx_dma_buf:
1707 free(eqos->tx_dma_buf);
1709 eqos_free_descs(eqos->descs);
1712 debug("%s: returns %d\n", __func__, ret);
1716 static int eqos_remove_resources_core(struct udevice *dev)
1718 struct eqos_priv *eqos = dev_get_priv(dev);
1720 debug("%s(dev=%p):\n", __func__, dev);
1723 free(eqos->rx_dma_buf);
1724 free(eqos->tx_dma_buf);
1725 eqos_free_descs(eqos->descs);
1727 debug("%s: OK\n", __func__);
1731 static int eqos_probe_resources_tegra186(struct udevice *dev)
1733 struct eqos_priv *eqos = dev_get_priv(dev);
1736 debug("%s(dev=%p):\n", __func__, dev);
1738 ret = reset_get_by_name(dev, "eqos", &eqos->reset_ctl);
1740 pr_err("reset_get_by_name(rst) failed: %d", ret);
1744 ret = gpio_request_by_name(dev, "phy-reset-gpios", 0,
1745 &eqos->phy_reset_gpio,
1746 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
1748 pr_err("gpio_request_by_name(phy reset) failed: %d", ret);
1749 goto err_free_reset_eqos;
1752 ret = clk_get_by_name(dev, "slave_bus", &eqos->clk_slave_bus);
1754 pr_err("clk_get_by_name(slave_bus) failed: %d", ret);
1755 goto err_free_gpio_phy_reset;
1758 ret = clk_get_by_name(dev, "master_bus", &eqos->clk_master_bus);
1760 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1761 goto err_free_clk_slave_bus;
1764 ret = clk_get_by_name(dev, "rx", &eqos->clk_rx);
1766 pr_err("clk_get_by_name(rx) failed: %d", ret);
1767 goto err_free_clk_master_bus;
1770 ret = clk_get_by_name(dev, "ptp_ref", &eqos->clk_ptp_ref);
1772 pr_err("clk_get_by_name(ptp_ref) failed: %d", ret);
1773 goto err_free_clk_rx;
1777 ret = clk_get_by_name(dev, "tx", &eqos->clk_tx);
1779 pr_err("clk_get_by_name(tx) failed: %d", ret);
1780 goto err_free_clk_ptp_ref;
1783 debug("%s: OK\n", __func__);
1786 err_free_clk_ptp_ref:
1787 clk_free(&eqos->clk_ptp_ref);
1789 clk_free(&eqos->clk_rx);
1790 err_free_clk_master_bus:
1791 clk_free(&eqos->clk_master_bus);
1792 err_free_clk_slave_bus:
1793 clk_free(&eqos->clk_slave_bus);
1794 err_free_gpio_phy_reset:
1795 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1796 err_free_reset_eqos:
1797 reset_free(&eqos->reset_ctl);
1799 debug("%s: returns %d\n", __func__, ret);
1803 /* board-specific Ethernet Interface initializations. */
1804 __weak int board_interface_eth_init(struct udevice *dev,
1805 phy_interface_t interface_type)
1810 static int eqos_probe_resources_stm32(struct udevice *dev)
1812 struct eqos_priv *eqos = dev_get_priv(dev);
1814 phy_interface_t interface;
1815 struct ofnode_phandle_args phandle_args;
1817 debug("%s(dev=%p):\n", __func__, dev);
1819 interface = eqos->config->interface(dev);
1821 if (interface == PHY_INTERFACE_MODE_NONE) {
1822 pr_err("Invalid PHY interface\n");
1826 ret = board_interface_eth_init(dev, interface);
1830 eqos->max_speed = dev_read_u32_default(dev, "max-speed", 0);
1832 ret = clk_get_by_name(dev, "stmmaceth", &eqos->clk_master_bus);
1834 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1838 ret = clk_get_by_name(dev, "mac-clk-rx", &eqos->clk_rx);
1840 pr_err("clk_get_by_name(rx) failed: %d", ret);
1841 goto err_free_clk_master_bus;
1844 ret = clk_get_by_name(dev, "mac-clk-tx", &eqos->clk_tx);
1846 pr_err("clk_get_by_name(tx) failed: %d", ret);
1847 goto err_free_clk_rx;
1850 /* Get ETH_CLK clocks (optional) */
1851 ret = clk_get_by_name(dev, "eth-ck", &eqos->clk_ck);
1853 pr_warn("No phy clock provided %d", ret);
1856 ret = dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
1859 /* search "reset-gpios" in phy node */
1860 ret = gpio_request_by_name_nodev(phandle_args.node,
1862 &eqos->phy_reset_gpio,
1864 GPIOD_IS_OUT_ACTIVE);
1866 pr_warn("gpio_request_by_name(phy reset) not provided %d",
1869 eqos->phyaddr = ofnode_read_u32_default(phandle_args.node,
1873 debug("%s: OK\n", __func__);
1877 clk_free(&eqos->clk_rx);
1878 err_free_clk_master_bus:
1879 clk_free(&eqos->clk_master_bus);
1882 debug("%s: returns %d\n", __func__, ret);
1886 static phy_interface_t eqos_get_interface_stm32(struct udevice *dev)
1888 const char *phy_mode;
1889 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
1891 debug("%s(dev=%p):\n", __func__, dev);
1893 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
1896 interface = phy_get_interface_by_name(phy_mode);
1901 static phy_interface_t eqos_get_interface_tegra186(struct udevice *dev)
1903 return PHY_INTERFACE_MODE_MII;
1906 static int eqos_probe_resources_imx(struct udevice *dev)
1908 struct eqos_priv *eqos = dev_get_priv(dev);
1909 phy_interface_t interface;
1911 debug("%s(dev=%p):\n", __func__, dev);
1913 interface = eqos->config->interface(dev);
1915 if (interface == PHY_INTERFACE_MODE_NONE) {
1916 pr_err("Invalid PHY interface\n");
1920 debug("%s: OK\n", __func__);
1924 static phy_interface_t eqos_get_interface_imx(struct udevice *dev)
1926 const char *phy_mode;
1927 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
1929 debug("%s(dev=%p):\n", __func__, dev);
1931 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
1934 interface = phy_get_interface_by_name(phy_mode);
1939 static int eqos_remove_resources_tegra186(struct udevice *dev)
1941 struct eqos_priv *eqos = dev_get_priv(dev);
1943 debug("%s(dev=%p):\n", __func__, dev);
1946 clk_free(&eqos->clk_tx);
1947 clk_free(&eqos->clk_ptp_ref);
1948 clk_free(&eqos->clk_rx);
1949 clk_free(&eqos->clk_slave_bus);
1950 clk_free(&eqos->clk_master_bus);
1952 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1953 reset_free(&eqos->reset_ctl);
1955 debug("%s: OK\n", __func__);
1959 static int eqos_remove_resources_stm32(struct udevice *dev)
1962 struct eqos_priv *eqos = dev_get_priv(dev);
1964 debug("%s(dev=%p):\n", __func__, dev);
1966 clk_free(&eqos->clk_tx);
1967 clk_free(&eqos->clk_rx);
1968 clk_free(&eqos->clk_master_bus);
1969 if (clk_valid(&eqos->clk_ck))
1970 clk_free(&eqos->clk_ck);
1973 if (dm_gpio_is_valid(&eqos->phy_reset_gpio))
1974 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1976 debug("%s: OK\n", __func__);
1980 static int eqos_remove_resources_imx(struct udevice *dev)
1985 static int eqos_probe(struct udevice *dev)
1987 struct eqos_priv *eqos = dev_get_priv(dev);
1990 debug("%s(dev=%p):\n", __func__, dev);
1993 eqos->config = (void *)dev_get_driver_data(dev);
1995 eqos->regs = devfdt_get_addr(dev);
1996 if (eqos->regs == FDT_ADDR_T_NONE) {
1997 pr_err("devfdt_get_addr() failed");
2000 eqos->mac_regs = (void *)(eqos->regs + EQOS_MAC_REGS_BASE);
2001 eqos->mtl_regs = (void *)(eqos->regs + EQOS_MTL_REGS_BASE);
2002 eqos->dma_regs = (void *)(eqos->regs + EQOS_DMA_REGS_BASE);
2003 eqos->tegra186_regs = (void *)(eqos->regs + EQOS_TEGRA186_REGS_BASE);
2005 ret = eqos_probe_resources_core(dev);
2007 pr_err("eqos_probe_resources_core() failed: %d", ret);
2011 ret = eqos->config->ops->eqos_probe_resources(dev);
2013 pr_err("eqos_probe_resources() failed: %d", ret);
2014 goto err_remove_resources_core;
2017 #ifdef CONFIG_DM_ETH_PHY
2018 eqos->mii = eth_phy_get_mdio_bus(dev);
2021 eqos->mii = mdio_alloc();
2023 pr_err("mdio_alloc() failed");
2025 goto err_remove_resources_tegra;
2027 eqos->mii->read = eqos_mdio_read;
2028 eqos->mii->write = eqos_mdio_write;
2029 eqos->mii->priv = eqos;
2030 strcpy(eqos->mii->name, dev->name);
2032 ret = mdio_register(eqos->mii);
2034 pr_err("mdio_register() failed: %d", ret);
2039 #ifdef CONFIG_DM_ETH_PHY
2040 eth_phy_set_mdio_bus(dev, eqos->mii);
2043 debug("%s: OK\n", __func__);
2047 mdio_free(eqos->mii);
2048 err_remove_resources_tegra:
2049 eqos->config->ops->eqos_remove_resources(dev);
2050 err_remove_resources_core:
2051 eqos_remove_resources_core(dev);
2053 debug("%s: returns %d\n", __func__, ret);
2057 static int eqos_remove(struct udevice *dev)
2059 struct eqos_priv *eqos = dev_get_priv(dev);
2061 debug("%s(dev=%p):\n", __func__, dev);
2063 mdio_unregister(eqos->mii);
2064 mdio_free(eqos->mii);
2065 eqos->config->ops->eqos_remove_resources(dev);
2067 eqos_probe_resources_core(dev);
2069 debug("%s: OK\n", __func__);
2073 static const struct eth_ops eqos_ops = {
2074 .start = eqos_start,
2078 .free_pkt = eqos_free_pkt,
2079 .write_hwaddr = eqos_write_hwaddr,
2080 .read_rom_hwaddr = eqos_read_rom_hwaddr,
2083 static struct eqos_ops eqos_tegra186_ops = {
2084 .eqos_inval_desc = eqos_inval_desc_tegra186,
2085 .eqos_flush_desc = eqos_flush_desc_tegra186,
2086 .eqos_inval_buffer = eqos_inval_buffer_tegra186,
2087 .eqos_flush_buffer = eqos_flush_buffer_tegra186,
2088 .eqos_probe_resources = eqos_probe_resources_tegra186,
2089 .eqos_remove_resources = eqos_remove_resources_tegra186,
2090 .eqos_stop_resets = eqos_stop_resets_tegra186,
2091 .eqos_start_resets = eqos_start_resets_tegra186,
2092 .eqos_stop_clks = eqos_stop_clks_tegra186,
2093 .eqos_start_clks = eqos_start_clks_tegra186,
2094 .eqos_calibrate_pads = eqos_calibrate_pads_tegra186,
2095 .eqos_disable_calibration = eqos_disable_calibration_tegra186,
2096 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_tegra186,
2097 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_tegra186
2100 static const struct eqos_config eqos_tegra186_config = {
2101 .reg_access_always_ok = false,
2104 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
2105 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_20_35,
2106 .interface = eqos_get_interface_tegra186,
2107 .ops = &eqos_tegra186_ops
2110 static struct eqos_ops eqos_stm32_ops = {
2111 .eqos_inval_desc = eqos_inval_desc_generic,
2112 .eqos_flush_desc = eqos_flush_desc_generic,
2113 .eqos_inval_buffer = eqos_inval_buffer_generic,
2114 .eqos_flush_buffer = eqos_flush_buffer_generic,
2115 .eqos_probe_resources = eqos_probe_resources_stm32,
2116 .eqos_remove_resources = eqos_remove_resources_stm32,
2117 .eqos_stop_resets = eqos_stop_resets_stm32,
2118 .eqos_start_resets = eqos_start_resets_stm32,
2119 .eqos_stop_clks = eqos_stop_clks_stm32,
2120 .eqos_start_clks = eqos_start_clks_stm32,
2121 .eqos_calibrate_pads = eqos_calibrate_pads_stm32,
2122 .eqos_disable_calibration = eqos_disable_calibration_stm32,
2123 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_stm32,
2124 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_stm32
2127 static const struct eqos_config eqos_stm32_config = {
2128 .reg_access_always_ok = false,
2131 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV,
2132 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
2133 .interface = eqos_get_interface_stm32,
2134 .ops = &eqos_stm32_ops
2137 static struct eqos_ops eqos_imx_ops = {
2138 .eqos_inval_desc = eqos_inval_desc_generic,
2139 .eqos_flush_desc = eqos_flush_desc_generic,
2140 .eqos_inval_buffer = eqos_inval_buffer_generic,
2141 .eqos_flush_buffer = eqos_flush_buffer_generic,
2142 .eqos_probe_resources = eqos_probe_resources_imx,
2143 .eqos_remove_resources = eqos_remove_resources_imx,
2144 .eqos_stop_resets = eqos_stop_resets_imx,
2145 .eqos_start_resets = eqos_start_resets_imx,
2146 .eqos_stop_clks = eqos_stop_clks_imx,
2147 .eqos_start_clks = eqos_start_clks_imx,
2148 .eqos_calibrate_pads = eqos_calibrate_pads_imx,
2149 .eqos_disable_calibration = eqos_disable_calibration_imx,
2150 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_imx,
2151 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx
2154 struct eqos_config eqos_imx_config = {
2155 .reg_access_always_ok = false,
2158 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
2159 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
2160 .interface = eqos_get_interface_imx,
2161 .ops = &eqos_imx_ops
2164 static const struct udevice_id eqos_ids[] = {
2166 .compatible = "nvidia,tegra186-eqos",
2167 .data = (ulong)&eqos_tegra186_config
2170 .compatible = "snps,dwmac-4.20a",
2171 .data = (ulong)&eqos_stm32_config
2174 .compatible = "fsl,imx-eqos",
2175 .data = (ulong)&eqos_imx_config
2181 U_BOOT_DRIVER(eth_eqos) = {
2184 .of_match = of_match_ptr(eqos_ids),
2185 .probe = eqos_probe,
2186 .remove = eqos_remove,
2188 .priv_auto_alloc_size = sizeof(struct eqos_priv),
2189 .platdata_auto_alloc_size = sizeof(struct eth_pdata),