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.
45 #ifdef CONFIG_ARCH_IMX8M
46 #include <asm/arch/clock.h>
47 #include <asm/mach-imx/sys_proto.h>
52 #define EQOS_MAC_REGS_BASE 0x000
53 struct eqos_mac_regs {
54 uint32_t configuration; /* 0x000 */
55 uint32_t unused_004[(0x070 - 0x004) / 4]; /* 0x004 */
56 uint32_t q0_tx_flow_ctrl; /* 0x070 */
57 uint32_t unused_070[(0x090 - 0x074) / 4]; /* 0x074 */
58 uint32_t rx_flow_ctrl; /* 0x090 */
59 uint32_t unused_094; /* 0x094 */
60 uint32_t txq_prty_map0; /* 0x098 */
61 uint32_t unused_09c; /* 0x09c */
62 uint32_t rxq_ctrl0; /* 0x0a0 */
63 uint32_t unused_0a4; /* 0x0a4 */
64 uint32_t rxq_ctrl2; /* 0x0a8 */
65 uint32_t unused_0ac[(0x0dc - 0x0ac) / 4]; /* 0x0ac */
66 uint32_t us_tic_counter; /* 0x0dc */
67 uint32_t unused_0e0[(0x11c - 0x0e0) / 4]; /* 0x0e0 */
68 uint32_t hw_feature0; /* 0x11c */
69 uint32_t hw_feature1; /* 0x120 */
70 uint32_t hw_feature2; /* 0x124 */
71 uint32_t unused_128[(0x200 - 0x128) / 4]; /* 0x128 */
72 uint32_t mdio_address; /* 0x200 */
73 uint32_t mdio_data; /* 0x204 */
74 uint32_t unused_208[(0x300 - 0x208) / 4]; /* 0x208 */
75 uint32_t address0_high; /* 0x300 */
76 uint32_t address0_low; /* 0x304 */
79 #define EQOS_MAC_CONFIGURATION_GPSLCE BIT(23)
80 #define EQOS_MAC_CONFIGURATION_CST BIT(21)
81 #define EQOS_MAC_CONFIGURATION_ACS BIT(20)
82 #define EQOS_MAC_CONFIGURATION_WD BIT(19)
83 #define EQOS_MAC_CONFIGURATION_JD BIT(17)
84 #define EQOS_MAC_CONFIGURATION_JE BIT(16)
85 #define EQOS_MAC_CONFIGURATION_PS BIT(15)
86 #define EQOS_MAC_CONFIGURATION_FES BIT(14)
87 #define EQOS_MAC_CONFIGURATION_DM BIT(13)
88 #define EQOS_MAC_CONFIGURATION_LM BIT(12)
89 #define EQOS_MAC_CONFIGURATION_TE BIT(1)
90 #define EQOS_MAC_CONFIGURATION_RE BIT(0)
92 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT 16
93 #define EQOS_MAC_Q0_TX_FLOW_CTRL_PT_MASK 0xffff
94 #define EQOS_MAC_Q0_TX_FLOW_CTRL_TFE BIT(1)
96 #define EQOS_MAC_RX_FLOW_CTRL_RFE BIT(0)
98 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT 0
99 #define EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK 0xff
101 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT 0
102 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK 3
103 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_NOT_ENABLED 0
104 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB 2
105 #define EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV 1
107 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT 0
108 #define EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK 0xff
110 #define EQOS_MAC_HW_FEATURE0_MMCSEL_SHIFT 8
111 #define EQOS_MAC_HW_FEATURE0_HDSEL_SHIFT 2
112 #define EQOS_MAC_HW_FEATURE0_GMIISEL_SHIFT 1
113 #define EQOS_MAC_HW_FEATURE0_MIISEL_SHIFT 0
115 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT 6
116 #define EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK 0x1f
117 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT 0
118 #define EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK 0x1f
120 #define EQOS_MAC_HW_FEATURE3_ASP_SHIFT 28
121 #define EQOS_MAC_HW_FEATURE3_ASP_MASK 0x3
123 #define EQOS_MAC_MDIO_ADDRESS_PA_SHIFT 21
124 #define EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT 16
125 #define EQOS_MAC_MDIO_ADDRESS_CR_SHIFT 8
126 #define EQOS_MAC_MDIO_ADDRESS_CR_20_35 2
127 #define EQOS_MAC_MDIO_ADDRESS_CR_250_300 5
128 #define EQOS_MAC_MDIO_ADDRESS_SKAP BIT(4)
129 #define EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT 2
130 #define EQOS_MAC_MDIO_ADDRESS_GOC_READ 3
131 #define EQOS_MAC_MDIO_ADDRESS_GOC_WRITE 1
132 #define EQOS_MAC_MDIO_ADDRESS_C45E BIT(1)
133 #define EQOS_MAC_MDIO_ADDRESS_GB BIT(0)
135 #define EQOS_MAC_MDIO_DATA_GD_MASK 0xffff
137 #define EQOS_MTL_REGS_BASE 0xd00
138 struct eqos_mtl_regs {
139 uint32_t txq0_operation_mode; /* 0xd00 */
140 uint32_t unused_d04; /* 0xd04 */
141 uint32_t txq0_debug; /* 0xd08 */
142 uint32_t unused_d0c[(0xd18 - 0xd0c) / 4]; /* 0xd0c */
143 uint32_t txq0_quantum_weight; /* 0xd18 */
144 uint32_t unused_d1c[(0xd30 - 0xd1c) / 4]; /* 0xd1c */
145 uint32_t rxq0_operation_mode; /* 0xd30 */
146 uint32_t unused_d34; /* 0xd34 */
147 uint32_t rxq0_debug; /* 0xd38 */
150 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT 16
151 #define EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK 0x1ff
152 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT 2
153 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_MASK 3
154 #define EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED 2
155 #define EQOS_MTL_TXQ0_OPERATION_MODE_TSF BIT(1)
156 #define EQOS_MTL_TXQ0_OPERATION_MODE_FTQ BIT(0)
158 #define EQOS_MTL_TXQ0_DEBUG_TXQSTS BIT(4)
159 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT 1
160 #define EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK 3
162 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT 20
163 #define EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK 0x3ff
164 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT 14
165 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK 0x3f
166 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT 8
167 #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK 0x3f
168 #define EQOS_MTL_RXQ0_OPERATION_MODE_EHFC BIT(7)
169 #define EQOS_MTL_RXQ0_OPERATION_MODE_RSF BIT(5)
170 #define EQOS_MTL_RXQ0_OPERATION_MODE_FEP BIT(4)
171 #define EQOS_MTL_RXQ0_OPERATION_MODE_FUP BIT(3)
173 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT 16
174 #define EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK 0x7fff
175 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT 4
176 #define EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK 3
178 #define EQOS_DMA_REGS_BASE 0x1000
179 struct eqos_dma_regs {
180 uint32_t mode; /* 0x1000 */
181 uint32_t sysbus_mode; /* 0x1004 */
182 uint32_t unused_1008[(0x1100 - 0x1008) / 4]; /* 0x1008 */
183 uint32_t ch0_control; /* 0x1100 */
184 uint32_t ch0_tx_control; /* 0x1104 */
185 uint32_t ch0_rx_control; /* 0x1108 */
186 uint32_t unused_110c; /* 0x110c */
187 uint32_t ch0_txdesc_list_haddress; /* 0x1110 */
188 uint32_t ch0_txdesc_list_address; /* 0x1114 */
189 uint32_t ch0_rxdesc_list_haddress; /* 0x1118 */
190 uint32_t ch0_rxdesc_list_address; /* 0x111c */
191 uint32_t ch0_txdesc_tail_pointer; /* 0x1120 */
192 uint32_t unused_1124; /* 0x1124 */
193 uint32_t ch0_rxdesc_tail_pointer; /* 0x1128 */
194 uint32_t ch0_txdesc_ring_length; /* 0x112c */
195 uint32_t ch0_rxdesc_ring_length; /* 0x1130 */
198 #define EQOS_DMA_MODE_SWR BIT(0)
200 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT 16
201 #define EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_MASK 0xf
202 #define EQOS_DMA_SYSBUS_MODE_EAME BIT(11)
203 #define EQOS_DMA_SYSBUS_MODE_BLEN16 BIT(3)
204 #define EQOS_DMA_SYSBUS_MODE_BLEN8 BIT(2)
205 #define EQOS_DMA_SYSBUS_MODE_BLEN4 BIT(1)
207 #define EQOS_DMA_CH0_CONTROL_PBLX8 BIT(16)
209 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT 16
210 #define EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK 0x3f
211 #define EQOS_DMA_CH0_TX_CONTROL_OSP BIT(4)
212 #define EQOS_DMA_CH0_TX_CONTROL_ST BIT(0)
214 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT 16
215 #define EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK 0x3f
216 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT 1
217 #define EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK 0x3fff
218 #define EQOS_DMA_CH0_RX_CONTROL_SR BIT(0)
220 /* These registers are Tegra186-specific */
221 #define EQOS_TEGRA186_REGS_BASE 0x8800
222 struct eqos_tegra186_regs {
223 uint32_t sdmemcomppadctrl; /* 0x8800 */
224 uint32_t auto_cal_config; /* 0x8804 */
225 uint32_t unused_8808; /* 0x8808 */
226 uint32_t auto_cal_status; /* 0x880c */
229 #define EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD BIT(31)
231 #define EQOS_AUTO_CAL_CONFIG_START BIT(31)
232 #define EQOS_AUTO_CAL_CONFIG_ENABLE BIT(29)
234 #define EQOS_AUTO_CAL_STATUS_ACTIVE BIT(31)
238 #define EQOS_DESCRIPTOR_WORDS 4
239 #define EQOS_DESCRIPTOR_SIZE (EQOS_DESCRIPTOR_WORDS * 4)
240 /* We assume ARCH_DMA_MINALIGN >= 16; 16 is the EQOS HW minimum */
241 #define EQOS_DESCRIPTOR_ALIGN ARCH_DMA_MINALIGN
242 #define EQOS_DESCRIPTORS_TX 4
243 #define EQOS_DESCRIPTORS_RX 4
244 #define EQOS_DESCRIPTORS_NUM (EQOS_DESCRIPTORS_TX + EQOS_DESCRIPTORS_RX)
245 #define EQOS_DESCRIPTORS_SIZE ALIGN(EQOS_DESCRIPTORS_NUM * \
246 EQOS_DESCRIPTOR_SIZE, ARCH_DMA_MINALIGN)
247 #define EQOS_BUFFER_ALIGN ARCH_DMA_MINALIGN
248 #define EQOS_MAX_PACKET_SIZE ALIGN(1568, ARCH_DMA_MINALIGN)
249 #define EQOS_RX_BUFFER_SIZE (EQOS_DESCRIPTORS_RX * EQOS_MAX_PACKET_SIZE)
252 * Warn if the cache-line size is larger than the descriptor size. In such
253 * cases the driver will likely fail because the CPU needs to flush the cache
254 * when requeuing RX buffers, therefore descriptors written by the hardware
255 * may be discarded. Architectures with full IO coherence, such as x86, do not
256 * experience this issue, and hence are excluded from this condition.
258 * This can be fixed by defining CONFIG_SYS_NONCACHED_MEMORY which will cause
259 * the driver to allocate descriptors from a pool of non-cached memory.
261 #if EQOS_DESCRIPTOR_SIZE < ARCH_DMA_MINALIGN
262 #if !defined(CONFIG_SYS_NONCACHED_MEMORY) && \
263 !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) && !defined(CONFIG_X86)
264 #warning Cache line size is larger than descriptor size
275 #define EQOS_DESC3_OWN BIT(31)
276 #define EQOS_DESC3_FD BIT(29)
277 #define EQOS_DESC3_LD BIT(28)
278 #define EQOS_DESC3_BUF1V BIT(24)
281 bool reg_access_always_ok;
286 phy_interface_t (*interface)(struct udevice *dev);
287 struct eqos_ops *ops;
291 void (*eqos_inval_desc)(void *desc);
292 void (*eqos_flush_desc)(void *desc);
293 void (*eqos_inval_buffer)(void *buf, size_t size);
294 void (*eqos_flush_buffer)(void *buf, size_t size);
295 int (*eqos_probe_resources)(struct udevice *dev);
296 int (*eqos_remove_resources)(struct udevice *dev);
297 int (*eqos_stop_resets)(struct udevice *dev);
298 int (*eqos_start_resets)(struct udevice *dev);
299 void (*eqos_stop_clks)(struct udevice *dev);
300 int (*eqos_start_clks)(struct udevice *dev);
301 int (*eqos_calibrate_pads)(struct udevice *dev);
302 int (*eqos_disable_calibration)(struct udevice *dev);
303 int (*eqos_set_tx_clk_speed)(struct udevice *dev);
304 ulong (*eqos_get_tick_clk_rate)(struct udevice *dev);
309 const struct eqos_config *config;
311 struct eqos_mac_regs *mac_regs;
312 struct eqos_mtl_regs *mtl_regs;
313 struct eqos_dma_regs *dma_regs;
314 struct eqos_tegra186_regs *tegra186_regs;
315 struct reset_ctl reset_ctl;
316 struct gpio_desc phy_reset_gpio;
317 struct clk clk_master_bus;
319 struct clk clk_ptp_ref;
322 struct clk clk_slave_bus;
324 struct phy_device *phy;
328 struct eqos_desc *tx_descs;
329 struct eqos_desc *rx_descs;
330 int tx_desc_idx, rx_desc_idx;
339 * TX and RX descriptors are 16 bytes. This causes problems with the cache
340 * maintenance on CPUs where the cache-line size exceeds the size of these
341 * descriptors. What will happen is that when the driver receives a packet
342 * it will be immediately requeued for the hardware to reuse. The CPU will
343 * therefore need to flush the cache-line containing the descriptor, which
344 * will cause all other descriptors in the same cache-line to be flushed
345 * along with it. If one of those descriptors had been written to by the
346 * device those changes (and the associated packet) will be lost.
348 * To work around this, we make use of non-cached memory if available. If
349 * descriptors are mapped uncached there's no need to manually flush them
350 * or invalidate them.
352 * Note that this only applies to descriptors. The packet data buffers do
353 * not have the same constraints since they are 1536 bytes large, so they
354 * are unlikely to share cache-lines.
356 static void *eqos_alloc_descs(unsigned int num)
358 #ifdef CONFIG_SYS_NONCACHED_MEMORY
359 return (void *)noncached_alloc(EQOS_DESCRIPTORS_SIZE,
360 EQOS_DESCRIPTOR_ALIGN);
362 return memalign(EQOS_DESCRIPTOR_ALIGN, EQOS_DESCRIPTORS_SIZE);
366 static void eqos_free_descs(void *descs)
368 #ifdef CONFIG_SYS_NONCACHED_MEMORY
369 /* FIXME: noncached_alloc() has no opposite */
375 static void eqos_inval_desc_tegra186(void *desc)
377 #ifndef CONFIG_SYS_NONCACHED_MEMORY
378 unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
379 unsigned long end = ALIGN(start + EQOS_DESCRIPTOR_SIZE,
382 invalidate_dcache_range(start, end);
386 static void eqos_inval_desc_generic(void *desc)
388 #ifndef CONFIG_SYS_NONCACHED_MEMORY
389 unsigned long start = rounddown((unsigned long)desc, ARCH_DMA_MINALIGN);
390 unsigned long end = roundup((unsigned long)desc + EQOS_DESCRIPTOR_SIZE,
393 invalidate_dcache_range(start, end);
397 static void eqos_flush_desc_tegra186(void *desc)
399 #ifndef CONFIG_SYS_NONCACHED_MEMORY
400 flush_cache((unsigned long)desc, EQOS_DESCRIPTOR_SIZE);
404 static void eqos_flush_desc_generic(void *desc)
406 #ifndef CONFIG_SYS_NONCACHED_MEMORY
407 unsigned long start = rounddown((unsigned long)desc, ARCH_DMA_MINALIGN);
408 unsigned long end = roundup((unsigned long)desc + EQOS_DESCRIPTOR_SIZE,
411 flush_dcache_range(start, end);
415 static void eqos_inval_buffer_tegra186(void *buf, size_t size)
417 unsigned long start = (unsigned long)buf & ~(ARCH_DMA_MINALIGN - 1);
418 unsigned long end = ALIGN(start + size, ARCH_DMA_MINALIGN);
420 invalidate_dcache_range(start, end);
423 static void eqos_inval_buffer_generic(void *buf, size_t size)
425 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
426 unsigned long end = roundup((unsigned long)buf + size,
429 invalidate_dcache_range(start, end);
432 static void eqos_flush_buffer_tegra186(void *buf, size_t size)
434 flush_cache((unsigned long)buf, size);
437 static void eqos_flush_buffer_generic(void *buf, size_t size)
439 unsigned long start = rounddown((unsigned long)buf, ARCH_DMA_MINALIGN);
440 unsigned long end = roundup((unsigned long)buf + size,
443 flush_dcache_range(start, end);
446 static int eqos_mdio_wait_idle(struct eqos_priv *eqos)
448 return wait_for_bit_le32(&eqos->mac_regs->mdio_address,
449 EQOS_MAC_MDIO_ADDRESS_GB, false,
453 static int eqos_mdio_read(struct mii_dev *bus, int mdio_addr, int mdio_devad,
456 struct eqos_priv *eqos = bus->priv;
460 debug("%s(dev=%p, addr=%x, reg=%d):\n", __func__, eqos->dev, mdio_addr,
463 ret = eqos_mdio_wait_idle(eqos);
465 pr_err("MDIO not idle at entry");
469 val = readl(&eqos->mac_regs->mdio_address);
470 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
471 EQOS_MAC_MDIO_ADDRESS_C45E;
472 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
473 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
474 (eqos->config->config_mac_mdio <<
475 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
476 (EQOS_MAC_MDIO_ADDRESS_GOC_READ <<
477 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
478 EQOS_MAC_MDIO_ADDRESS_GB;
479 writel(val, &eqos->mac_regs->mdio_address);
481 udelay(eqos->config->mdio_wait);
483 ret = eqos_mdio_wait_idle(eqos);
485 pr_err("MDIO read didn't complete");
489 val = readl(&eqos->mac_regs->mdio_data);
490 val &= EQOS_MAC_MDIO_DATA_GD_MASK;
492 debug("%s: val=%x\n", __func__, val);
497 static int eqos_mdio_write(struct mii_dev *bus, int mdio_addr, int mdio_devad,
498 int mdio_reg, u16 mdio_val)
500 struct eqos_priv *eqos = bus->priv;
504 debug("%s(dev=%p, addr=%x, reg=%d, val=%x):\n", __func__, eqos->dev,
505 mdio_addr, mdio_reg, mdio_val);
507 ret = eqos_mdio_wait_idle(eqos);
509 pr_err("MDIO not idle at entry");
513 writel(mdio_val, &eqos->mac_regs->mdio_data);
515 val = readl(&eqos->mac_regs->mdio_address);
516 val &= EQOS_MAC_MDIO_ADDRESS_SKAP |
517 EQOS_MAC_MDIO_ADDRESS_C45E;
518 val |= (mdio_addr << EQOS_MAC_MDIO_ADDRESS_PA_SHIFT) |
519 (mdio_reg << EQOS_MAC_MDIO_ADDRESS_RDA_SHIFT) |
520 (eqos->config->config_mac_mdio <<
521 EQOS_MAC_MDIO_ADDRESS_CR_SHIFT) |
522 (EQOS_MAC_MDIO_ADDRESS_GOC_WRITE <<
523 EQOS_MAC_MDIO_ADDRESS_GOC_SHIFT) |
524 EQOS_MAC_MDIO_ADDRESS_GB;
525 writel(val, &eqos->mac_regs->mdio_address);
527 udelay(eqos->config->mdio_wait);
529 ret = eqos_mdio_wait_idle(eqos);
531 pr_err("MDIO read didn't complete");
538 static int eqos_start_clks_tegra186(struct udevice *dev)
541 struct eqos_priv *eqos = dev_get_priv(dev);
544 debug("%s(dev=%p):\n", __func__, dev);
546 ret = clk_enable(&eqos->clk_slave_bus);
548 pr_err("clk_enable(clk_slave_bus) failed: %d", ret);
552 ret = clk_enable(&eqos->clk_master_bus);
554 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
555 goto err_disable_clk_slave_bus;
558 ret = clk_enable(&eqos->clk_rx);
560 pr_err("clk_enable(clk_rx) failed: %d", ret);
561 goto err_disable_clk_master_bus;
564 ret = clk_enable(&eqos->clk_ptp_ref);
566 pr_err("clk_enable(clk_ptp_ref) failed: %d", ret);
567 goto err_disable_clk_rx;
570 ret = clk_set_rate(&eqos->clk_ptp_ref, 125 * 1000 * 1000);
572 pr_err("clk_set_rate(clk_ptp_ref) failed: %d", ret);
573 goto err_disable_clk_ptp_ref;
576 ret = clk_enable(&eqos->clk_tx);
578 pr_err("clk_enable(clk_tx) failed: %d", ret);
579 goto err_disable_clk_ptp_ref;
583 debug("%s: OK\n", __func__);
587 err_disable_clk_ptp_ref:
588 clk_disable(&eqos->clk_ptp_ref);
590 clk_disable(&eqos->clk_rx);
591 err_disable_clk_master_bus:
592 clk_disable(&eqos->clk_master_bus);
593 err_disable_clk_slave_bus:
594 clk_disable(&eqos->clk_slave_bus);
596 debug("%s: FAILED: %d\n", __func__, ret);
601 static int eqos_start_clks_stm32(struct udevice *dev)
604 struct eqos_priv *eqos = dev_get_priv(dev);
607 debug("%s(dev=%p):\n", __func__, dev);
609 ret = clk_enable(&eqos->clk_master_bus);
611 pr_err("clk_enable(clk_master_bus) failed: %d", ret);
615 ret = clk_enable(&eqos->clk_rx);
617 pr_err("clk_enable(clk_rx) failed: %d", ret);
618 goto err_disable_clk_master_bus;
621 ret = clk_enable(&eqos->clk_tx);
623 pr_err("clk_enable(clk_tx) failed: %d", ret);
624 goto err_disable_clk_rx;
627 if (clk_valid(&eqos->clk_ck)) {
628 ret = clk_enable(&eqos->clk_ck);
630 pr_err("clk_enable(clk_ck) failed: %d", ret);
631 goto err_disable_clk_tx;
636 debug("%s: OK\n", __func__);
641 clk_disable(&eqos->clk_tx);
643 clk_disable(&eqos->clk_rx);
644 err_disable_clk_master_bus:
645 clk_disable(&eqos->clk_master_bus);
647 debug("%s: FAILED: %d\n", __func__, ret);
652 static int eqos_start_clks_imx(struct udevice *dev)
657 static void eqos_stop_clks_tegra186(struct udevice *dev)
660 struct eqos_priv *eqos = dev_get_priv(dev);
662 debug("%s(dev=%p):\n", __func__, dev);
664 clk_disable(&eqos->clk_tx);
665 clk_disable(&eqos->clk_ptp_ref);
666 clk_disable(&eqos->clk_rx);
667 clk_disable(&eqos->clk_master_bus);
668 clk_disable(&eqos->clk_slave_bus);
671 debug("%s: OK\n", __func__);
674 static void eqos_stop_clks_stm32(struct udevice *dev)
677 struct eqos_priv *eqos = dev_get_priv(dev);
679 debug("%s(dev=%p):\n", __func__, dev);
681 clk_disable(&eqos->clk_tx);
682 clk_disable(&eqos->clk_rx);
683 clk_disable(&eqos->clk_master_bus);
684 if (clk_valid(&eqos->clk_ck))
685 clk_disable(&eqos->clk_ck);
688 debug("%s: OK\n", __func__);
691 static void eqos_stop_clks_imx(struct udevice *dev)
696 static int eqos_start_resets_tegra186(struct udevice *dev)
698 struct eqos_priv *eqos = dev_get_priv(dev);
701 debug("%s(dev=%p):\n", __func__, dev);
703 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
705 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d", ret);
711 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
713 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d", ret);
717 ret = reset_assert(&eqos->reset_ctl);
719 pr_err("reset_assert() failed: %d", ret);
725 ret = reset_deassert(&eqos->reset_ctl);
727 pr_err("reset_deassert() failed: %d", ret);
731 debug("%s: OK\n", __func__);
735 static int eqos_start_resets_stm32(struct udevice *dev)
737 struct eqos_priv *eqos = dev_get_priv(dev);
740 debug("%s(dev=%p):\n", __func__, dev);
741 if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
742 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
744 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d",
751 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
753 pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d",
758 debug("%s: OK\n", __func__);
763 static int eqos_start_resets_imx(struct udevice *dev)
768 static int eqos_stop_resets_tegra186(struct udevice *dev)
770 struct eqos_priv *eqos = dev_get_priv(dev);
772 reset_assert(&eqos->reset_ctl);
773 dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
778 static int eqos_stop_resets_stm32(struct udevice *dev)
780 struct eqos_priv *eqos = dev_get_priv(dev);
783 if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
784 ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
786 pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d",
795 static int eqos_stop_resets_imx(struct udevice *dev)
800 static int eqos_calibrate_pads_tegra186(struct udevice *dev)
802 struct eqos_priv *eqos = dev_get_priv(dev);
805 debug("%s(dev=%p):\n", __func__, dev);
807 setbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
808 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
812 setbits_le32(&eqos->tegra186_regs->auto_cal_config,
813 EQOS_AUTO_CAL_CONFIG_START | EQOS_AUTO_CAL_CONFIG_ENABLE);
815 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
816 EQOS_AUTO_CAL_STATUS_ACTIVE, true, 10, false);
818 pr_err("calibrate didn't start");
822 ret = wait_for_bit_le32(&eqos->tegra186_regs->auto_cal_status,
823 EQOS_AUTO_CAL_STATUS_ACTIVE, false, 10, false);
825 pr_err("calibrate didn't finish");
832 clrbits_le32(&eqos->tegra186_regs->sdmemcomppadctrl,
833 EQOS_SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD);
835 debug("%s: returns %d\n", __func__, ret);
840 static int eqos_disable_calibration_tegra186(struct udevice *dev)
842 struct eqos_priv *eqos = dev_get_priv(dev);
844 debug("%s(dev=%p):\n", __func__, dev);
846 clrbits_le32(&eqos->tegra186_regs->auto_cal_config,
847 EQOS_AUTO_CAL_CONFIG_ENABLE);
852 static ulong eqos_get_tick_clk_rate_tegra186(struct udevice *dev)
855 struct eqos_priv *eqos = dev_get_priv(dev);
857 return clk_get_rate(&eqos->clk_slave_bus);
863 static ulong eqos_get_tick_clk_rate_stm32(struct udevice *dev)
866 struct eqos_priv *eqos = dev_get_priv(dev);
868 return clk_get_rate(&eqos->clk_master_bus);
874 __weak u32 imx_get_eqos_csr_clk(void)
876 return 100 * 1000000;
878 __weak int imx_eqos_txclk_set_rate(unsigned long rate)
883 static ulong eqos_get_tick_clk_rate_imx(struct udevice *dev)
885 return imx_get_eqos_csr_clk();
888 static int eqos_calibrate_pads_stm32(struct udevice *dev)
893 static int eqos_calibrate_pads_imx(struct udevice *dev)
898 static int eqos_disable_calibration_stm32(struct udevice *dev)
903 static int eqos_disable_calibration_imx(struct udevice *dev)
908 static int eqos_set_full_duplex(struct udevice *dev)
910 struct eqos_priv *eqos = dev_get_priv(dev);
912 debug("%s(dev=%p):\n", __func__, dev);
914 setbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
919 static int eqos_set_half_duplex(struct udevice *dev)
921 struct eqos_priv *eqos = dev_get_priv(dev);
923 debug("%s(dev=%p):\n", __func__, dev);
925 clrbits_le32(&eqos->mac_regs->configuration, EQOS_MAC_CONFIGURATION_DM);
927 /* WAR: Flush TX queue when switching to half-duplex */
928 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
929 EQOS_MTL_TXQ0_OPERATION_MODE_FTQ);
934 static int eqos_set_gmii_speed(struct udevice *dev)
936 struct eqos_priv *eqos = dev_get_priv(dev);
938 debug("%s(dev=%p):\n", __func__, dev);
940 clrbits_le32(&eqos->mac_regs->configuration,
941 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
946 static int eqos_set_mii_speed_100(struct udevice *dev)
948 struct eqos_priv *eqos = dev_get_priv(dev);
950 debug("%s(dev=%p):\n", __func__, dev);
952 setbits_le32(&eqos->mac_regs->configuration,
953 EQOS_MAC_CONFIGURATION_PS | EQOS_MAC_CONFIGURATION_FES);
958 static int eqos_set_mii_speed_10(struct udevice *dev)
960 struct eqos_priv *eqos = dev_get_priv(dev);
962 debug("%s(dev=%p):\n", __func__, dev);
964 clrsetbits_le32(&eqos->mac_regs->configuration,
965 EQOS_MAC_CONFIGURATION_FES, EQOS_MAC_CONFIGURATION_PS);
970 static int eqos_set_tx_clk_speed_tegra186(struct udevice *dev)
973 struct eqos_priv *eqos = dev_get_priv(dev);
977 debug("%s(dev=%p):\n", __func__, dev);
979 switch (eqos->phy->speed) {
981 rate = 125 * 1000 * 1000;
984 rate = 25 * 1000 * 1000;
987 rate = 2.5 * 1000 * 1000;
990 pr_err("invalid speed %d", eqos->phy->speed);
994 ret = clk_set_rate(&eqos->clk_tx, rate);
996 pr_err("clk_set_rate(tx_clk, %lu) failed: %d", rate, ret);
1004 static int eqos_set_tx_clk_speed_stm32(struct udevice *dev)
1009 static int eqos_set_tx_clk_speed_imx(struct udevice *dev)
1011 struct eqos_priv *eqos = dev_get_priv(dev);
1015 debug("%s(dev=%p):\n", __func__, dev);
1017 switch (eqos->phy->speed) {
1019 rate = 125 * 1000 * 1000;
1022 rate = 25 * 1000 * 1000;
1025 rate = 2.5 * 1000 * 1000;
1028 pr_err("invalid speed %d", eqos->phy->speed);
1032 ret = imx_eqos_txclk_set_rate(rate);
1034 pr_err("imx (tx_clk, %lu) failed: %d", rate, ret);
1041 static int eqos_adjust_link(struct udevice *dev)
1043 struct eqos_priv *eqos = dev_get_priv(dev);
1045 bool en_calibration;
1047 debug("%s(dev=%p):\n", __func__, dev);
1049 if (eqos->phy->duplex)
1050 ret = eqos_set_full_duplex(dev);
1052 ret = eqos_set_half_duplex(dev);
1054 pr_err("eqos_set_*_duplex() failed: %d", ret);
1058 switch (eqos->phy->speed) {
1060 en_calibration = true;
1061 ret = eqos_set_gmii_speed(dev);
1064 en_calibration = true;
1065 ret = eqos_set_mii_speed_100(dev);
1068 en_calibration = false;
1069 ret = eqos_set_mii_speed_10(dev);
1072 pr_err("invalid speed %d", eqos->phy->speed);
1076 pr_err("eqos_set_*mii_speed*() failed: %d", ret);
1080 if (en_calibration) {
1081 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1083 pr_err("eqos_calibrate_pads() failed: %d",
1088 ret = eqos->config->ops->eqos_disable_calibration(dev);
1090 pr_err("eqos_disable_calibration() failed: %d",
1095 ret = eqos->config->ops->eqos_set_tx_clk_speed(dev);
1097 pr_err("eqos_set_tx_clk_speed() failed: %d", ret);
1104 static int eqos_write_hwaddr(struct udevice *dev)
1106 struct eth_pdata *plat = dev_get_platdata(dev);
1107 struct eqos_priv *eqos = dev_get_priv(dev);
1111 * This function may be called before start() or after stop(). At that
1112 * time, on at least some configurations of the EQoS HW, all clocks to
1113 * the EQoS HW block will be stopped, and a reset signal applied. If
1114 * any register access is attempted in this state, bus timeouts or CPU
1115 * hangs may occur. This check prevents that.
1117 * A simple solution to this problem would be to not implement
1118 * write_hwaddr(), since start() always writes the MAC address into HW
1119 * anyway. However, it is desirable to implement write_hwaddr() to
1120 * support the case of SW that runs subsequent to U-Boot which expects
1121 * the MAC address to already be programmed into the EQoS registers,
1122 * which must happen irrespective of whether the U-Boot user (or
1123 * scripts) actually made use of the EQoS device, and hence
1124 * irrespective of whether start() was ever called.
1126 * Note that this requirement by subsequent SW is not valid for
1127 * Tegra186, and is likely not valid for any non-PCI instantiation of
1128 * the EQoS HW block. This function is implemented solely as
1129 * future-proofing with the expectation the driver will eventually be
1130 * ported to some system where the expectation above is true.
1132 if (!eqos->config->reg_access_always_ok && !eqos->reg_access_ok)
1135 /* Update the MAC address */
1136 val = (plat->enetaddr[5] << 8) |
1137 (plat->enetaddr[4]);
1138 writel(val, &eqos->mac_regs->address0_high);
1139 val = (plat->enetaddr[3] << 24) |
1140 (plat->enetaddr[2] << 16) |
1141 (plat->enetaddr[1] << 8) |
1142 (plat->enetaddr[0]);
1143 writel(val, &eqos->mac_regs->address0_low);
1148 static int eqos_start(struct udevice *dev)
1150 struct eqos_priv *eqos = dev_get_priv(dev);
1153 u32 val, tx_fifo_sz, rx_fifo_sz, tqs, rqs, pbl;
1156 debug("%s(dev=%p):\n", __func__, dev);
1158 eqos->tx_desc_idx = 0;
1159 eqos->rx_desc_idx = 0;
1161 ret = eqos->config->ops->eqos_start_clks(dev);
1163 pr_err("eqos_start_clks() failed: %d", ret);
1167 ret = eqos->config->ops->eqos_start_resets(dev);
1169 pr_err("eqos_start_resets() failed: %d", ret);
1175 eqos->reg_access_ok = true;
1177 ret = wait_for_bit_le32(&eqos->dma_regs->mode,
1178 EQOS_DMA_MODE_SWR, false,
1179 eqos->config->swr_wait, false);
1181 pr_err("EQOS_DMA_MODE_SWR stuck");
1182 goto err_stop_resets;
1185 ret = eqos->config->ops->eqos_calibrate_pads(dev);
1187 pr_err("eqos_calibrate_pads() failed: %d", ret);
1188 goto err_stop_resets;
1190 rate = eqos->config->ops->eqos_get_tick_clk_rate(dev);
1192 val = (rate / 1000000) - 1;
1193 writel(val, &eqos->mac_regs->us_tic_counter);
1196 * if PHY was already connected and configured,
1197 * don't need to reconnect/reconfigure again
1201 #ifdef CONFIG_DM_ETH_PHY
1202 addr = eth_phy_get_addr(dev);
1204 #ifdef DWC_NET_PHYADDR
1205 addr = DWC_NET_PHYADDR;
1207 eqos->phy = phy_connect(eqos->mii, addr, dev,
1208 eqos->config->interface(dev));
1210 pr_err("phy_connect() failed");
1211 goto err_stop_resets;
1214 if (eqos->max_speed) {
1215 ret = phy_set_supported(eqos->phy, eqos->max_speed);
1217 pr_err("phy_set_supported() failed: %d", ret);
1218 goto err_shutdown_phy;
1222 ret = phy_config(eqos->phy);
1224 pr_err("phy_config() failed: %d", ret);
1225 goto err_shutdown_phy;
1229 ret = phy_startup(eqos->phy);
1231 pr_err("phy_startup() failed: %d", ret);
1232 goto err_shutdown_phy;
1235 if (!eqos->phy->link) {
1237 goto err_shutdown_phy;
1240 ret = eqos_adjust_link(dev);
1242 pr_err("eqos_adjust_link() failed: %d", ret);
1243 goto err_shutdown_phy;
1247 writel(0x60, &eqos->mtl_regs->txq0_quantum_weight - 0x100);
1249 /* Enable Store and Forward mode for TX */
1250 /* Program Tx operating mode */
1251 setbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1252 EQOS_MTL_TXQ0_OPERATION_MODE_TSF |
1253 (EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_ENABLED <<
1254 EQOS_MTL_TXQ0_OPERATION_MODE_TXQEN_SHIFT));
1256 /* Transmit Queue weight */
1257 writel(0x10, &eqos->mtl_regs->txq0_quantum_weight);
1259 /* Enable Store and Forward mode for RX, since no jumbo frame */
1260 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1261 EQOS_MTL_RXQ0_OPERATION_MODE_RSF |
1262 EQOS_MTL_RXQ0_OPERATION_MODE_FEP |
1263 EQOS_MTL_RXQ0_OPERATION_MODE_FUP);
1265 /* Transmit/Receive queue fifo size; use all RAM for 1 queue */
1266 val = readl(&eqos->mac_regs->hw_feature1);
1267 tx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_SHIFT) &
1268 EQOS_MAC_HW_FEATURE1_TXFIFOSIZE_MASK;
1269 rx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT) &
1270 EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK;
1273 * r/tx_fifo_sz is encoded as log2(n / 128). Undo that by shifting.
1274 * r/tqs is encoded as (n / 256) - 1.
1276 tqs = (128 << tx_fifo_sz) / 256 - 1;
1277 rqs = (128 << rx_fifo_sz) / 256 - 1;
1279 clrsetbits_le32(&eqos->mtl_regs->txq0_operation_mode,
1280 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK <<
1281 EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT,
1282 tqs << EQOS_MTL_TXQ0_OPERATION_MODE_TQS_SHIFT);
1283 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1284 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_MASK <<
1285 EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT,
1286 rqs << EQOS_MTL_RXQ0_OPERATION_MODE_RQS_SHIFT);
1288 /* Flow control used only if each channel gets 4KB or more FIFO */
1289 if (rqs >= ((4096 / 256) - 1)) {
1292 setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1293 EQOS_MTL_RXQ0_OPERATION_MODE_EHFC);
1296 * Set Threshold for Activating Flow Contol space for min 2
1297 * frames ie, (1500 * 1) = 1500 bytes.
1299 * Set Threshold for Deactivating Flow Contol for space of
1300 * min 1 frame (frame size 1500bytes) in receive fifo
1302 if (rqs == ((4096 / 256) - 1)) {
1304 * This violates the above formula because of FIFO size
1305 * limit therefore overflow may occur inspite of this.
1307 rfd = 0x3; /* Full-3K */
1308 rfa = 0x1; /* Full-1.5K */
1309 } else if (rqs == ((8192 / 256) - 1)) {
1310 rfd = 0x6; /* Full-4K */
1311 rfa = 0xa; /* Full-6K */
1312 } else if (rqs == ((16384 / 256) - 1)) {
1313 rfd = 0x6; /* Full-4K */
1314 rfa = 0x12; /* Full-10K */
1316 rfd = 0x6; /* Full-4K */
1317 rfa = 0x1E; /* Full-16K */
1320 clrsetbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
1321 (EQOS_MTL_RXQ0_OPERATION_MODE_RFD_MASK <<
1322 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1323 (EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK <<
1324 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT),
1326 EQOS_MTL_RXQ0_OPERATION_MODE_RFD_SHIFT) |
1328 EQOS_MTL_RXQ0_OPERATION_MODE_RFA_SHIFT));
1333 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1334 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1335 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1336 eqos->config->config_mac <<
1337 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1339 clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
1340 EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
1341 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
1343 EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
1345 /* Multicast and Broadcast Queue Enable */
1346 setbits_le32(&eqos->mac_regs->unused_0a4,
1348 /* enable promise mode */
1349 setbits_le32(&eqos->mac_regs->unused_004[1],
1352 /* Set TX flow control parameters */
1353 /* Set Pause Time */
1354 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1355 0xffff << EQOS_MAC_Q0_TX_FLOW_CTRL_PT_SHIFT);
1356 /* Assign priority for TX flow control */
1357 clrbits_le32(&eqos->mac_regs->txq_prty_map0,
1358 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_MASK <<
1359 EQOS_MAC_TXQ_PRTY_MAP0_PSTQ0_SHIFT);
1360 /* Assign priority for RX flow control */
1361 clrbits_le32(&eqos->mac_regs->rxq_ctrl2,
1362 EQOS_MAC_RXQ_CTRL2_PSRQ0_MASK <<
1363 EQOS_MAC_RXQ_CTRL2_PSRQ0_SHIFT);
1364 /* Enable flow control */
1365 setbits_le32(&eqos->mac_regs->q0_tx_flow_ctrl,
1366 EQOS_MAC_Q0_TX_FLOW_CTRL_TFE);
1367 setbits_le32(&eqos->mac_regs->rx_flow_ctrl,
1368 EQOS_MAC_RX_FLOW_CTRL_RFE);
1370 clrsetbits_le32(&eqos->mac_regs->configuration,
1371 EQOS_MAC_CONFIGURATION_GPSLCE |
1372 EQOS_MAC_CONFIGURATION_WD |
1373 EQOS_MAC_CONFIGURATION_JD |
1374 EQOS_MAC_CONFIGURATION_JE,
1375 EQOS_MAC_CONFIGURATION_CST |
1376 EQOS_MAC_CONFIGURATION_ACS);
1378 eqos_write_hwaddr(dev);
1382 /* Enable OSP mode */
1383 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1384 EQOS_DMA_CH0_TX_CONTROL_OSP);
1386 /* RX buffer size. Must be a multiple of bus width */
1387 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1388 EQOS_DMA_CH0_RX_CONTROL_RBSZ_MASK <<
1389 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT,
1390 EQOS_MAX_PACKET_SIZE <<
1391 EQOS_DMA_CH0_RX_CONTROL_RBSZ_SHIFT);
1393 setbits_le32(&eqos->dma_regs->ch0_control,
1394 EQOS_DMA_CH0_CONTROL_PBLX8);
1397 * Burst length must be < 1/2 FIFO size.
1398 * FIFO size in tqs is encoded as (n / 256) - 1.
1399 * Each burst is n * 8 (PBLX8) * 16 (AXI width) == 128 bytes.
1400 * Half of n * 256 is n * 128, so pbl == tqs, modulo the -1.
1405 clrsetbits_le32(&eqos->dma_regs->ch0_tx_control,
1406 EQOS_DMA_CH0_TX_CONTROL_TXPBL_MASK <<
1407 EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT,
1408 pbl << EQOS_DMA_CH0_TX_CONTROL_TXPBL_SHIFT);
1410 clrsetbits_le32(&eqos->dma_regs->ch0_rx_control,
1411 EQOS_DMA_CH0_RX_CONTROL_RXPBL_MASK <<
1412 EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT,
1413 8 << EQOS_DMA_CH0_RX_CONTROL_RXPBL_SHIFT);
1415 /* DMA performance configuration */
1416 val = (2 << EQOS_DMA_SYSBUS_MODE_RD_OSR_LMT_SHIFT) |
1417 EQOS_DMA_SYSBUS_MODE_EAME | EQOS_DMA_SYSBUS_MODE_BLEN16 |
1418 EQOS_DMA_SYSBUS_MODE_BLEN8 | EQOS_DMA_SYSBUS_MODE_BLEN4;
1419 writel(val, &eqos->dma_regs->sysbus_mode);
1421 /* Set up descriptors */
1423 memset(eqos->descs, 0, EQOS_DESCRIPTORS_SIZE);
1424 for (i = 0; i < EQOS_DESCRIPTORS_RX; i++) {
1425 struct eqos_desc *rx_desc = &(eqos->rx_descs[i]);
1426 rx_desc->des0 = (u32)(ulong)(eqos->rx_dma_buf +
1427 (i * EQOS_MAX_PACKET_SIZE));
1428 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1430 eqos->config->ops->eqos_flush_desc(rx_desc);
1431 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf +
1432 (i * EQOS_MAX_PACKET_SIZE),
1433 EQOS_MAX_PACKET_SIZE);
1436 writel(0, &eqos->dma_regs->ch0_txdesc_list_haddress);
1437 writel((ulong)eqos->tx_descs, &eqos->dma_regs->ch0_txdesc_list_address);
1438 writel(EQOS_DESCRIPTORS_TX - 1,
1439 &eqos->dma_regs->ch0_txdesc_ring_length);
1441 writel(0, &eqos->dma_regs->ch0_rxdesc_list_haddress);
1442 writel((ulong)eqos->rx_descs, &eqos->dma_regs->ch0_rxdesc_list_address);
1443 writel(EQOS_DESCRIPTORS_RX - 1,
1444 &eqos->dma_regs->ch0_rxdesc_ring_length);
1446 /* Enable everything */
1447 setbits_le32(&eqos->dma_regs->ch0_tx_control,
1448 EQOS_DMA_CH0_TX_CONTROL_ST);
1449 setbits_le32(&eqos->dma_regs->ch0_rx_control,
1450 EQOS_DMA_CH0_RX_CONTROL_SR);
1451 setbits_le32(&eqos->mac_regs->configuration,
1452 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1454 /* TX tail pointer not written until we need to TX a packet */
1456 * Point RX tail pointer at last descriptor. Ideally, we'd point at the
1457 * first descriptor, implying all descriptors were available. However,
1458 * that's not distinguishable from none of the descriptors being
1461 last_rx_desc = (ulong)&(eqos->rx_descs[(EQOS_DESCRIPTORS_RX - 1)]);
1462 writel(last_rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1464 eqos->started = true;
1466 debug("%s: OK\n", __func__);
1470 phy_shutdown(eqos->phy);
1472 eqos->config->ops->eqos_stop_resets(dev);
1474 eqos->config->ops->eqos_stop_clks(dev);
1476 pr_err("FAILED: %d", ret);
1480 static void eqos_stop(struct udevice *dev)
1482 struct eqos_priv *eqos = dev_get_priv(dev);
1485 debug("%s(dev=%p):\n", __func__, dev);
1489 eqos->started = false;
1490 eqos->reg_access_ok = false;
1492 /* Disable TX DMA */
1493 clrbits_le32(&eqos->dma_regs->ch0_tx_control,
1494 EQOS_DMA_CH0_TX_CONTROL_ST);
1496 /* Wait for TX all packets to drain out of MTL */
1497 for (i = 0; i < 1000000; i++) {
1498 u32 val = readl(&eqos->mtl_regs->txq0_debug);
1499 u32 trcsts = (val >> EQOS_MTL_TXQ0_DEBUG_TRCSTS_SHIFT) &
1500 EQOS_MTL_TXQ0_DEBUG_TRCSTS_MASK;
1501 u32 txqsts = val & EQOS_MTL_TXQ0_DEBUG_TXQSTS;
1502 if ((trcsts != 1) && (!txqsts))
1506 /* Turn off MAC TX and RX */
1507 clrbits_le32(&eqos->mac_regs->configuration,
1508 EQOS_MAC_CONFIGURATION_TE | EQOS_MAC_CONFIGURATION_RE);
1510 /* Wait for all RX packets to drain out of MTL */
1511 for (i = 0; i < 1000000; i++) {
1512 u32 val = readl(&eqos->mtl_regs->rxq0_debug);
1513 u32 prxq = (val >> EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT) &
1514 EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK;
1515 u32 rxqsts = (val >> EQOS_MTL_RXQ0_DEBUG_RXQSTS_SHIFT) &
1516 EQOS_MTL_RXQ0_DEBUG_RXQSTS_MASK;
1517 if ((!prxq) && (!rxqsts))
1521 /* Turn off RX DMA */
1522 clrbits_le32(&eqos->dma_regs->ch0_rx_control,
1523 EQOS_DMA_CH0_RX_CONTROL_SR);
1526 phy_shutdown(eqos->phy);
1528 eqos->config->ops->eqos_stop_resets(dev);
1529 eqos->config->ops->eqos_stop_clks(dev);
1531 debug("%s: OK\n", __func__);
1534 static int eqos_send(struct udevice *dev, void *packet, int length)
1536 struct eqos_priv *eqos = dev_get_priv(dev);
1537 struct eqos_desc *tx_desc;
1540 debug("%s(dev=%p, packet=%p, length=%d):\n", __func__, dev, packet,
1543 memcpy(eqos->tx_dma_buf, packet, length);
1544 eqos->config->ops->eqos_flush_buffer(eqos->tx_dma_buf, length);
1546 tx_desc = &(eqos->tx_descs[eqos->tx_desc_idx]);
1547 eqos->tx_desc_idx++;
1548 eqos->tx_desc_idx %= EQOS_DESCRIPTORS_TX;
1550 tx_desc->des0 = (ulong)eqos->tx_dma_buf;
1552 tx_desc->des2 = length;
1554 * Make sure that if HW sees the _OWN write below, it will see all the
1555 * writes to the rest of the descriptor too.
1558 tx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_FD | EQOS_DESC3_LD | length;
1559 eqos->config->ops->eqos_flush_desc(tx_desc);
1561 writel((ulong)(&(eqos->tx_descs[eqos->tx_desc_idx])),
1562 &eqos->dma_regs->ch0_txdesc_tail_pointer);
1564 for (i = 0; i < 1000000; i++) {
1565 eqos->config->ops->eqos_inval_desc(tx_desc);
1566 if (!(readl(&tx_desc->des3) & EQOS_DESC3_OWN))
1571 debug("%s: TX timeout\n", __func__);
1576 static int eqos_recv(struct udevice *dev, int flags, uchar **packetp)
1578 struct eqos_priv *eqos = dev_get_priv(dev);
1579 struct eqos_desc *rx_desc;
1582 debug("%s(dev=%p, flags=%x):\n", __func__, dev, flags);
1584 rx_desc = &(eqos->rx_descs[eqos->rx_desc_idx]);
1585 eqos->config->ops->eqos_inval_desc(rx_desc);
1586 if (rx_desc->des3 & EQOS_DESC3_OWN) {
1587 debug("%s: RX packet not available\n", __func__);
1591 *packetp = eqos->rx_dma_buf +
1592 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1593 length = rx_desc->des3 & 0x7fff;
1594 debug("%s: *packetp=%p, length=%d\n", __func__, *packetp, length);
1596 eqos->config->ops->eqos_inval_buffer(*packetp, length);
1601 static int eqos_free_pkt(struct udevice *dev, uchar *packet, int length)
1603 struct eqos_priv *eqos = dev_get_priv(dev);
1604 uchar *packet_expected;
1605 struct eqos_desc *rx_desc;
1607 debug("%s(packet=%p, length=%d)\n", __func__, packet, length);
1609 packet_expected = eqos->rx_dma_buf +
1610 (eqos->rx_desc_idx * EQOS_MAX_PACKET_SIZE);
1611 if (packet != packet_expected) {
1612 debug("%s: Unexpected packet (expected %p)\n", __func__,
1617 eqos->config->ops->eqos_inval_buffer(packet, length);
1619 rx_desc = &(eqos->rx_descs[eqos->rx_desc_idx]);
1623 eqos->config->ops->eqos_flush_desc(rx_desc);
1624 eqos->config->ops->eqos_inval_buffer(packet, length);
1625 rx_desc->des0 = (u32)(ulong)packet;
1629 * Make sure that if HW sees the _OWN write below, it will see all the
1630 * writes to the rest of the descriptor too.
1633 rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
1634 eqos->config->ops->eqos_flush_desc(rx_desc);
1636 writel((ulong)rx_desc, &eqos->dma_regs->ch0_rxdesc_tail_pointer);
1638 eqos->rx_desc_idx++;
1639 eqos->rx_desc_idx %= EQOS_DESCRIPTORS_RX;
1644 static int eqos_probe_resources_core(struct udevice *dev)
1646 struct eqos_priv *eqos = dev_get_priv(dev);
1649 debug("%s(dev=%p):\n", __func__, dev);
1651 eqos->descs = eqos_alloc_descs(EQOS_DESCRIPTORS_TX +
1652 EQOS_DESCRIPTORS_RX);
1654 debug("%s: eqos_alloc_descs() failed\n", __func__);
1658 eqos->tx_descs = (struct eqos_desc *)eqos->descs;
1659 eqos->rx_descs = (eqos->tx_descs + EQOS_DESCRIPTORS_TX);
1660 debug("%s: tx_descs=%p, rx_descs=%p\n", __func__, eqos->tx_descs,
1663 eqos->tx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_MAX_PACKET_SIZE);
1664 if (!eqos->tx_dma_buf) {
1665 debug("%s: memalign(tx_dma_buf) failed\n", __func__);
1667 goto err_free_descs;
1669 debug("%s: tx_dma_buf=%p\n", __func__, eqos->tx_dma_buf);
1671 eqos->rx_dma_buf = memalign(EQOS_BUFFER_ALIGN, EQOS_RX_BUFFER_SIZE);
1672 if (!eqos->rx_dma_buf) {
1673 debug("%s: memalign(rx_dma_buf) failed\n", __func__);
1675 goto err_free_tx_dma_buf;
1677 debug("%s: rx_dma_buf=%p\n", __func__, eqos->rx_dma_buf);
1679 eqos->rx_pkt = malloc(EQOS_MAX_PACKET_SIZE);
1680 if (!eqos->rx_pkt) {
1681 debug("%s: malloc(rx_pkt) failed\n", __func__);
1683 goto err_free_rx_dma_buf;
1685 debug("%s: rx_pkt=%p\n", __func__, eqos->rx_pkt);
1687 eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf,
1688 EQOS_MAX_PACKET_SIZE * EQOS_DESCRIPTORS_RX);
1690 debug("%s: OK\n", __func__);
1693 err_free_rx_dma_buf:
1694 free(eqos->rx_dma_buf);
1695 err_free_tx_dma_buf:
1696 free(eqos->tx_dma_buf);
1698 eqos_free_descs(eqos->descs);
1701 debug("%s: returns %d\n", __func__, ret);
1705 static int eqos_remove_resources_core(struct udevice *dev)
1707 struct eqos_priv *eqos = dev_get_priv(dev);
1709 debug("%s(dev=%p):\n", __func__, dev);
1712 free(eqos->rx_dma_buf);
1713 free(eqos->tx_dma_buf);
1714 eqos_free_descs(eqos->descs);
1716 debug("%s: OK\n", __func__);
1720 static int eqos_probe_resources_tegra186(struct udevice *dev)
1722 struct eqos_priv *eqos = dev_get_priv(dev);
1725 debug("%s(dev=%p):\n", __func__, dev);
1727 ret = reset_get_by_name(dev, "eqos", &eqos->reset_ctl);
1729 pr_err("reset_get_by_name(rst) failed: %d", ret);
1733 ret = gpio_request_by_name(dev, "phy-reset-gpios", 0,
1734 &eqos->phy_reset_gpio,
1735 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
1737 pr_err("gpio_request_by_name(phy reset) failed: %d", ret);
1738 goto err_free_reset_eqos;
1741 ret = clk_get_by_name(dev, "slave_bus", &eqos->clk_slave_bus);
1743 pr_err("clk_get_by_name(slave_bus) failed: %d", ret);
1744 goto err_free_gpio_phy_reset;
1747 ret = clk_get_by_name(dev, "master_bus", &eqos->clk_master_bus);
1749 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1750 goto err_free_clk_slave_bus;
1753 ret = clk_get_by_name(dev, "rx", &eqos->clk_rx);
1755 pr_err("clk_get_by_name(rx) failed: %d", ret);
1756 goto err_free_clk_master_bus;
1759 ret = clk_get_by_name(dev, "ptp_ref", &eqos->clk_ptp_ref);
1761 pr_err("clk_get_by_name(ptp_ref) failed: %d", ret);
1762 goto err_free_clk_rx;
1766 ret = clk_get_by_name(dev, "tx", &eqos->clk_tx);
1768 pr_err("clk_get_by_name(tx) failed: %d", ret);
1769 goto err_free_clk_ptp_ref;
1772 debug("%s: OK\n", __func__);
1775 err_free_clk_ptp_ref:
1776 clk_free(&eqos->clk_ptp_ref);
1778 clk_free(&eqos->clk_rx);
1779 err_free_clk_master_bus:
1780 clk_free(&eqos->clk_master_bus);
1781 err_free_clk_slave_bus:
1782 clk_free(&eqos->clk_slave_bus);
1783 err_free_gpio_phy_reset:
1784 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1785 err_free_reset_eqos:
1786 reset_free(&eqos->reset_ctl);
1788 debug("%s: returns %d\n", __func__, ret);
1792 /* board-specific Ethernet Interface initializations. */
1793 __weak int board_interface_eth_init(struct udevice *dev,
1794 phy_interface_t interface_type)
1799 static int eqos_probe_resources_stm32(struct udevice *dev)
1801 struct eqos_priv *eqos = dev_get_priv(dev);
1803 phy_interface_t interface;
1804 struct ofnode_phandle_args phandle_args;
1806 debug("%s(dev=%p):\n", __func__, dev);
1808 interface = eqos->config->interface(dev);
1810 if (interface == PHY_INTERFACE_MODE_NONE) {
1811 pr_err("Invalid PHY interface\n");
1815 ret = board_interface_eth_init(dev, interface);
1819 eqos->max_speed = dev_read_u32_default(dev, "max-speed", 0);
1821 ret = clk_get_by_name(dev, "stmmaceth", &eqos->clk_master_bus);
1823 pr_err("clk_get_by_name(master_bus) failed: %d", ret);
1827 ret = clk_get_by_name(dev, "mac-clk-rx", &eqos->clk_rx);
1829 pr_err("clk_get_by_name(rx) failed: %d", ret);
1830 goto err_free_clk_master_bus;
1833 ret = clk_get_by_name(dev, "mac-clk-tx", &eqos->clk_tx);
1835 pr_err("clk_get_by_name(tx) failed: %d", ret);
1836 goto err_free_clk_rx;
1839 /* Get ETH_CLK clocks (optional) */
1840 ret = clk_get_by_name(dev, "eth-ck", &eqos->clk_ck);
1842 pr_warn("No phy clock provided %d", ret);
1845 ret = dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
1848 /* search "reset-gpios" in phy node */
1849 ret = gpio_request_by_name_nodev(phandle_args.node,
1851 &eqos->phy_reset_gpio,
1853 GPIOD_IS_OUT_ACTIVE);
1855 pr_warn("gpio_request_by_name(phy reset) not provided %d",
1858 eqos->phyaddr = ofnode_read_u32_default(phandle_args.node,
1862 debug("%s: OK\n", __func__);
1866 clk_free(&eqos->clk_rx);
1867 err_free_clk_master_bus:
1868 clk_free(&eqos->clk_master_bus);
1871 debug("%s: returns %d\n", __func__, ret);
1875 static phy_interface_t eqos_get_interface_stm32(struct udevice *dev)
1877 const char *phy_mode;
1878 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
1880 debug("%s(dev=%p):\n", __func__, dev);
1882 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
1885 interface = phy_get_interface_by_name(phy_mode);
1890 static phy_interface_t eqos_get_interface_tegra186(struct udevice *dev)
1892 return PHY_INTERFACE_MODE_MII;
1895 static int eqos_probe_resources_imx(struct udevice *dev)
1897 struct eqos_priv *eqos = dev_get_priv(dev);
1898 phy_interface_t interface;
1900 debug("%s(dev=%p):\n", __func__, dev);
1902 interface = eqos->config->interface(dev);
1904 if (interface == PHY_INTERFACE_MODE_NONE) {
1905 pr_err("Invalid PHY interface\n");
1909 debug("%s: OK\n", __func__);
1913 static phy_interface_t eqos_get_interface_imx(struct udevice *dev)
1915 const char *phy_mode;
1916 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
1918 debug("%s(dev=%p):\n", __func__, dev);
1920 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
1923 interface = phy_get_interface_by_name(phy_mode);
1928 static int eqos_remove_resources_tegra186(struct udevice *dev)
1930 struct eqos_priv *eqos = dev_get_priv(dev);
1932 debug("%s(dev=%p):\n", __func__, dev);
1935 clk_free(&eqos->clk_tx);
1936 clk_free(&eqos->clk_ptp_ref);
1937 clk_free(&eqos->clk_rx);
1938 clk_free(&eqos->clk_slave_bus);
1939 clk_free(&eqos->clk_master_bus);
1941 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1942 reset_free(&eqos->reset_ctl);
1944 debug("%s: OK\n", __func__);
1948 static int eqos_remove_resources_stm32(struct udevice *dev)
1951 struct eqos_priv *eqos = dev_get_priv(dev);
1953 debug("%s(dev=%p):\n", __func__, dev);
1955 clk_free(&eqos->clk_tx);
1956 clk_free(&eqos->clk_rx);
1957 clk_free(&eqos->clk_master_bus);
1958 if (clk_valid(&eqos->clk_ck))
1959 clk_free(&eqos->clk_ck);
1962 if (dm_gpio_is_valid(&eqos->phy_reset_gpio))
1963 dm_gpio_free(dev, &eqos->phy_reset_gpio);
1965 debug("%s: OK\n", __func__);
1969 static int eqos_remove_resources_imx(struct udevice *dev)
1974 static int eqos_probe(struct udevice *dev)
1976 struct eqos_priv *eqos = dev_get_priv(dev);
1979 debug("%s(dev=%p):\n", __func__, dev);
1982 eqos->config = (void *)dev_get_driver_data(dev);
1984 eqos->regs = devfdt_get_addr(dev);
1985 if (eqos->regs == FDT_ADDR_T_NONE) {
1986 pr_err("devfdt_get_addr() failed");
1989 eqos->mac_regs = (void *)(eqos->regs + EQOS_MAC_REGS_BASE);
1990 eqos->mtl_regs = (void *)(eqos->regs + EQOS_MTL_REGS_BASE);
1991 eqos->dma_regs = (void *)(eqos->regs + EQOS_DMA_REGS_BASE);
1992 eqos->tegra186_regs = (void *)(eqos->regs + EQOS_TEGRA186_REGS_BASE);
1994 ret = eqos_probe_resources_core(dev);
1996 pr_err("eqos_probe_resources_core() failed: %d", ret);
2000 ret = eqos->config->ops->eqos_probe_resources(dev);
2002 pr_err("eqos_probe_resources() failed: %d", ret);
2003 goto err_remove_resources_core;
2006 #ifdef CONFIG_DM_ETH_PHY
2007 eqos->mii = eth_phy_get_mdio_bus(dev);
2010 eqos->mii = mdio_alloc();
2012 pr_err("mdio_alloc() failed");
2014 goto err_remove_resources_tegra;
2016 eqos->mii->read = eqos_mdio_read;
2017 eqos->mii->write = eqos_mdio_write;
2018 eqos->mii->priv = eqos;
2019 strcpy(eqos->mii->name, dev->name);
2021 ret = mdio_register(eqos->mii);
2023 pr_err("mdio_register() failed: %d", ret);
2028 #ifdef CONFIG_DM_ETH_PHY
2029 eth_phy_set_mdio_bus(dev, eqos->mii);
2032 debug("%s: OK\n", __func__);
2036 mdio_free(eqos->mii);
2037 err_remove_resources_tegra:
2038 eqos->config->ops->eqos_remove_resources(dev);
2039 err_remove_resources_core:
2040 eqos_remove_resources_core(dev);
2042 debug("%s: returns %d\n", __func__, ret);
2046 static int eqos_remove(struct udevice *dev)
2048 struct eqos_priv *eqos = dev_get_priv(dev);
2050 debug("%s(dev=%p):\n", __func__, dev);
2052 mdio_unregister(eqos->mii);
2053 mdio_free(eqos->mii);
2054 eqos->config->ops->eqos_remove_resources(dev);
2056 eqos_probe_resources_core(dev);
2058 debug("%s: OK\n", __func__);
2062 static const struct eth_ops eqos_ops = {
2063 .start = eqos_start,
2067 .free_pkt = eqos_free_pkt,
2068 .write_hwaddr = eqos_write_hwaddr,
2071 static struct eqos_ops eqos_tegra186_ops = {
2072 .eqos_inval_desc = eqos_inval_desc_tegra186,
2073 .eqos_flush_desc = eqos_flush_desc_tegra186,
2074 .eqos_inval_buffer = eqos_inval_buffer_tegra186,
2075 .eqos_flush_buffer = eqos_flush_buffer_tegra186,
2076 .eqos_probe_resources = eqos_probe_resources_tegra186,
2077 .eqos_remove_resources = eqos_remove_resources_tegra186,
2078 .eqos_stop_resets = eqos_stop_resets_tegra186,
2079 .eqos_start_resets = eqos_start_resets_tegra186,
2080 .eqos_stop_clks = eqos_stop_clks_tegra186,
2081 .eqos_start_clks = eqos_start_clks_tegra186,
2082 .eqos_calibrate_pads = eqos_calibrate_pads_tegra186,
2083 .eqos_disable_calibration = eqos_disable_calibration_tegra186,
2084 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_tegra186,
2085 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_tegra186
2088 static const struct eqos_config eqos_tegra186_config = {
2089 .reg_access_always_ok = false,
2092 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
2093 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_20_35,
2094 .interface = eqos_get_interface_tegra186,
2095 .ops = &eqos_tegra186_ops
2098 static struct eqos_ops eqos_stm32_ops = {
2099 .eqos_inval_desc = eqos_inval_desc_generic,
2100 .eqos_flush_desc = eqos_flush_desc_generic,
2101 .eqos_inval_buffer = eqos_inval_buffer_generic,
2102 .eqos_flush_buffer = eqos_flush_buffer_generic,
2103 .eqos_probe_resources = eqos_probe_resources_stm32,
2104 .eqos_remove_resources = eqos_remove_resources_stm32,
2105 .eqos_stop_resets = eqos_stop_resets_stm32,
2106 .eqos_start_resets = eqos_start_resets_stm32,
2107 .eqos_stop_clks = eqos_stop_clks_stm32,
2108 .eqos_start_clks = eqos_start_clks_stm32,
2109 .eqos_calibrate_pads = eqos_calibrate_pads_stm32,
2110 .eqos_disable_calibration = eqos_disable_calibration_stm32,
2111 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_stm32,
2112 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_stm32
2115 static const struct eqos_config eqos_stm32_config = {
2116 .reg_access_always_ok = false,
2119 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_AV,
2120 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
2121 .interface = eqos_get_interface_stm32,
2122 .ops = &eqos_stm32_ops
2125 static struct eqos_ops eqos_imx_ops = {
2126 .eqos_inval_desc = eqos_inval_desc_generic,
2127 .eqos_flush_desc = eqos_flush_desc_generic,
2128 .eqos_inval_buffer = eqos_inval_buffer_generic,
2129 .eqos_flush_buffer = eqos_flush_buffer_generic,
2130 .eqos_probe_resources = eqos_probe_resources_imx,
2131 .eqos_remove_resources = eqos_remove_resources_imx,
2132 .eqos_stop_resets = eqos_stop_resets_imx,
2133 .eqos_start_resets = eqos_start_resets_imx,
2134 .eqos_stop_clks = eqos_stop_clks_imx,
2135 .eqos_start_clks = eqos_start_clks_imx,
2136 .eqos_calibrate_pads = eqos_calibrate_pads_imx,
2137 .eqos_disable_calibration = eqos_disable_calibration_imx,
2138 .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_imx,
2139 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx
2142 struct eqos_config eqos_imx_config = {
2143 .reg_access_always_ok = false,
2146 .config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
2147 .config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
2148 .interface = eqos_get_interface_imx,
2149 .ops = &eqos_imx_ops
2152 static const struct udevice_id eqos_ids[] = {
2154 .compatible = "nvidia,tegra186-eqos",
2155 .data = (ulong)&eqos_tegra186_config
2158 .compatible = "snps,dwmac-4.20a",
2159 .data = (ulong)&eqos_stm32_config
2162 .compatible = "fsl,imx-eqos",
2163 .data = (ulong)&eqos_imx_config
2169 U_BOOT_DRIVER(eth_eqos) = {
2172 .of_match = of_match_ptr(eqos_ids),
2173 .probe = eqos_probe,
2174 .remove = eqos_remove,
2176 .priv_auto_alloc_size = sizeof(struct eqos_priv),
2177 .platdata_auto_alloc_size = sizeof(struct eth_pdata),