Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2005-2006 Atmel Corporation |
| 3 | * |
Wolfgang Denk | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 4 | * SPDX-License-Identifier: GPL-2.0+ |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 5 | */ |
| 6 | #include <common.h> |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 7 | #include <clk.h> |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 8 | #include <dm.h> |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 9 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 10 | /* |
| 11 | * The u-boot networking stack is a little weird. It seems like the |
| 12 | * networking core allocates receive buffers up front without any |
| 13 | * regard to the hardware that's supposed to actually receive those |
| 14 | * packets. |
| 15 | * |
| 16 | * The MACB receives packets into 128-byte receive buffers, so the |
| 17 | * buffers allocated by the core isn't very practical to use. We'll |
| 18 | * allocate our own, but we need one such buffer in case a packet |
| 19 | * wraps around the DMA ring so that we have to copy it. |
| 20 | * |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 21 | * Therefore, define CONFIG_SYS_RX_ETH_BUFFER to 1 in the board-specific |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 22 | * configuration header. This way, the core allocates one RX buffer |
| 23 | * and one TX buffer, each of which can hold a ethernet packet of |
| 24 | * maximum size. |
| 25 | * |
| 26 | * For some reason, the networking core unconditionally specifies a |
| 27 | * 32-byte packet "alignment" (which really should be called |
| 28 | * "padding"). MACB shouldn't need that, but we'll refrain from any |
| 29 | * core modifications here... |
| 30 | */ |
| 31 | |
| 32 | #include <net.h> |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 33 | #ifndef CONFIG_DM_ETH |
Ben Warren | 2f2b6b6 | 2008-08-31 22:22:04 -0700 | [diff] [blame] | 34 | #include <netdev.h> |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 35 | #endif |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 36 | #include <malloc.h> |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 37 | #include <miiphy.h> |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 38 | |
| 39 | #include <linux/mii.h> |
| 40 | #include <asm/io.h> |
| 41 | #include <asm/dma-mapping.h> |
| 42 | #include <asm/arch/clk.h> |
Masahiro Yamada | 64e4f7f | 2016-09-21 11:28:57 +0900 | [diff] [blame] | 43 | #include <linux/errno.h> |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 44 | |
| 45 | #include "macb.h" |
| 46 | |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 47 | DECLARE_GLOBAL_DATA_PTR; |
| 48 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 49 | #define MACB_RX_BUFFER_SIZE 4096 |
| 50 | #define MACB_RX_RING_SIZE (MACB_RX_BUFFER_SIZE / 128) |
| 51 | #define MACB_TX_RING_SIZE 16 |
| 52 | #define MACB_TX_TIMEOUT 1000 |
| 53 | #define MACB_AUTONEG_TIMEOUT 5000000 |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 54 | |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 55 | #ifdef CONFIG_MACB_ZYNQ |
| 56 | /* INCR4 AHB bursts */ |
| 57 | #define MACB_ZYNQ_GEM_DMACR_BLENGTH 0x00000004 |
| 58 | /* Use full configured addressable space (8 Kb) */ |
| 59 | #define MACB_ZYNQ_GEM_DMACR_RXSIZE 0x00000300 |
| 60 | /* Use full configured addressable space (4 Kb) */ |
| 61 | #define MACB_ZYNQ_GEM_DMACR_TXSIZE 0x00000400 |
| 62 | /* Set RXBUF with use of 128 byte */ |
| 63 | #define MACB_ZYNQ_GEM_DMACR_RXBUF 0x00020000 |
| 64 | #define MACB_ZYNQ_GEM_DMACR_INIT \ |
| 65 | (MACB_ZYNQ_GEM_DMACR_BLENGTH | \ |
| 66 | MACB_ZYNQ_GEM_DMACR_RXSIZE | \ |
| 67 | MACB_ZYNQ_GEM_DMACR_TXSIZE | \ |
| 68 | MACB_ZYNQ_GEM_DMACR_RXBUF) |
| 69 | #endif |
| 70 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 71 | struct macb_dma_desc { |
| 72 | u32 addr; |
| 73 | u32 ctrl; |
| 74 | }; |
| 75 | |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 76 | #define DMA_DESC_BYTES(n) (n * sizeof(struct macb_dma_desc)) |
| 77 | #define MACB_TX_DMA_DESC_SIZE (DMA_DESC_BYTES(MACB_TX_RING_SIZE)) |
| 78 | #define MACB_RX_DMA_DESC_SIZE (DMA_DESC_BYTES(MACB_RX_RING_SIZE)) |
Wu, Josh | 012d68d | 2015-06-03 16:45:44 +0800 | [diff] [blame] | 79 | #define MACB_TX_DUMMY_DMA_DESC_SIZE (DMA_DESC_BYTES(1)) |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 80 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 81 | #define RXADDR_USED 0x00000001 |
| 82 | #define RXADDR_WRAP 0x00000002 |
| 83 | |
| 84 | #define RXBUF_FRMLEN_MASK 0x00000fff |
| 85 | #define RXBUF_FRAME_START 0x00004000 |
| 86 | #define RXBUF_FRAME_END 0x00008000 |
| 87 | #define RXBUF_TYPEID_MATCH 0x00400000 |
| 88 | #define RXBUF_ADDR4_MATCH 0x00800000 |
| 89 | #define RXBUF_ADDR3_MATCH 0x01000000 |
| 90 | #define RXBUF_ADDR2_MATCH 0x02000000 |
| 91 | #define RXBUF_ADDR1_MATCH 0x04000000 |
| 92 | #define RXBUF_BROADCAST 0x80000000 |
| 93 | |
| 94 | #define TXBUF_FRMLEN_MASK 0x000007ff |
| 95 | #define TXBUF_FRAME_END 0x00008000 |
| 96 | #define TXBUF_NOCRC 0x00010000 |
| 97 | #define TXBUF_EXHAUSTED 0x08000000 |
| 98 | #define TXBUF_UNDERRUN 0x10000000 |
| 99 | #define TXBUF_MAXRETRY 0x20000000 |
| 100 | #define TXBUF_WRAP 0x40000000 |
| 101 | #define TXBUF_USED 0x80000000 |
| 102 | |
| 103 | struct macb_device { |
| 104 | void *regs; |
| 105 | |
| 106 | unsigned int rx_tail; |
| 107 | unsigned int tx_head; |
| 108 | unsigned int tx_tail; |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 109 | unsigned int next_rx_tail; |
| 110 | bool wrapped; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 111 | |
| 112 | void *rx_buffer; |
| 113 | void *tx_buffer; |
| 114 | struct macb_dma_desc *rx_ring; |
| 115 | struct macb_dma_desc *tx_ring; |
| 116 | |
| 117 | unsigned long rx_buffer_dma; |
| 118 | unsigned long rx_ring_dma; |
| 119 | unsigned long tx_ring_dma; |
| 120 | |
Wu, Josh | 012d68d | 2015-06-03 16:45:44 +0800 | [diff] [blame] | 121 | struct macb_dma_desc *dummy_desc; |
| 122 | unsigned long dummy_desc_dma; |
| 123 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 124 | const struct device *dev; |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 125 | #ifndef CONFIG_DM_ETH |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 126 | struct eth_device netdev; |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 127 | #endif |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 128 | unsigned short phy_addr; |
Bo Shen | 7d91deb | 2013-04-24 15:59:27 +0800 | [diff] [blame] | 129 | struct mii_dev *bus; |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 130 | #ifdef CONFIG_PHYLIB |
| 131 | struct phy_device *phydev; |
| 132 | #endif |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 133 | |
| 134 | #ifdef CONFIG_DM_ETH |
Wenyou Yang | 1944936 | 2017-02-14 16:24:40 +0800 | [diff] [blame] | 135 | #ifdef CONFIG_CLK |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 136 | unsigned long pclk_rate; |
Wenyou Yang | 1944936 | 2017-02-14 16:24:40 +0800 | [diff] [blame] | 137 | #endif |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 138 | phy_interface_t phy_interface; |
| 139 | #endif |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 140 | }; |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 141 | #ifndef CONFIG_DM_ETH |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 142 | #define to_macb(_nd) container_of(_nd, struct macb_device, netdev) |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 143 | #endif |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 144 | |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 145 | static int macb_is_gem(struct macb_device *macb) |
| 146 | { |
| 147 | return MACB_BFEXT(IDNUM, macb_readl(macb, MID)) == 0x2; |
| 148 | } |
| 149 | |
Gregory CLEMENT | f1a1e58 | 2015-12-16 14:50:34 +0100 | [diff] [blame] | 150 | #ifndef cpu_is_sama5d2 |
| 151 | #define cpu_is_sama5d2() 0 |
| 152 | #endif |
| 153 | |
| 154 | #ifndef cpu_is_sama5d4 |
| 155 | #define cpu_is_sama5d4() 0 |
| 156 | #endif |
| 157 | |
| 158 | static int gem_is_gigabit_capable(struct macb_device *macb) |
| 159 | { |
| 160 | /* |
Robert P. J. Day | 8c60f92 | 2016-05-04 04:47:31 -0400 | [diff] [blame] | 161 | * The GEM controllers embedded in SAMA5D2 and SAMA5D4 are |
Gregory CLEMENT | f1a1e58 | 2015-12-16 14:50:34 +0100 | [diff] [blame] | 162 | * configured to support only 10/100. |
| 163 | */ |
| 164 | return macb_is_gem(macb) && !cpu_is_sama5d2() && !cpu_is_sama5d4(); |
| 165 | } |
| 166 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 167 | static void macb_mdio_write(struct macb_device *macb, u8 reg, u16 value) |
| 168 | { |
| 169 | unsigned long netctl; |
| 170 | unsigned long netstat; |
| 171 | unsigned long frame; |
| 172 | |
| 173 | netctl = macb_readl(macb, NCR); |
| 174 | netctl |= MACB_BIT(MPE); |
| 175 | macb_writel(macb, NCR, netctl); |
| 176 | |
| 177 | frame = (MACB_BF(SOF, 1) |
| 178 | | MACB_BF(RW, 1) |
| 179 | | MACB_BF(PHYA, macb->phy_addr) |
| 180 | | MACB_BF(REGA, reg) |
| 181 | | MACB_BF(CODE, 2) |
| 182 | | MACB_BF(DATA, value)); |
| 183 | macb_writel(macb, MAN, frame); |
| 184 | |
| 185 | do { |
| 186 | netstat = macb_readl(macb, NSR); |
| 187 | } while (!(netstat & MACB_BIT(IDLE))); |
| 188 | |
| 189 | netctl = macb_readl(macb, NCR); |
| 190 | netctl &= ~MACB_BIT(MPE); |
| 191 | macb_writel(macb, NCR, netctl); |
| 192 | } |
| 193 | |
| 194 | static u16 macb_mdio_read(struct macb_device *macb, u8 reg) |
| 195 | { |
| 196 | unsigned long netctl; |
| 197 | unsigned long netstat; |
| 198 | unsigned long frame; |
| 199 | |
| 200 | netctl = macb_readl(macb, NCR); |
| 201 | netctl |= MACB_BIT(MPE); |
| 202 | macb_writel(macb, NCR, netctl); |
| 203 | |
| 204 | frame = (MACB_BF(SOF, 1) |
| 205 | | MACB_BF(RW, 2) |
| 206 | | MACB_BF(PHYA, macb->phy_addr) |
| 207 | | MACB_BF(REGA, reg) |
| 208 | | MACB_BF(CODE, 2)); |
| 209 | macb_writel(macb, MAN, frame); |
| 210 | |
| 211 | do { |
| 212 | netstat = macb_readl(macb, NSR); |
| 213 | } while (!(netstat & MACB_BIT(IDLE))); |
| 214 | |
| 215 | frame = macb_readl(macb, MAN); |
| 216 | |
| 217 | netctl = macb_readl(macb, NCR); |
| 218 | netctl &= ~MACB_BIT(MPE); |
| 219 | macb_writel(macb, NCR, netctl); |
| 220 | |
| 221 | return MACB_BFEXT(DATA, frame); |
| 222 | } |
| 223 | |
Joe Hershberger | 9e5742b | 2013-06-24 19:06:38 -0500 | [diff] [blame] | 224 | void __weak arch_get_mdio_control(const char *name) |
Shiraz Hashim | 77cdf0f | 2012-12-13 17:22:52 +0530 | [diff] [blame] | 225 | { |
| 226 | return; |
| 227 | } |
| 228 | |
Bo Shen | 7d91deb | 2013-04-24 15:59:27 +0800 | [diff] [blame] | 229 | #if defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB) |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 230 | |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 231 | int macb_miiphy_read(struct mii_dev *bus, int phy_adr, int devad, int reg) |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 232 | { |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 233 | u16 value = 0; |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 234 | #ifdef CONFIG_DM_ETH |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 235 | struct udevice *dev = eth_get_dev_by_name(bus->name); |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 236 | struct macb_device *macb = dev_get_priv(dev); |
| 237 | #else |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 238 | struct eth_device *dev = eth_get_dev_by_name(bus->name); |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 239 | struct macb_device *macb = to_macb(dev); |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 240 | #endif |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 241 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 242 | if (macb->phy_addr != phy_adr) |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 243 | return -1; |
| 244 | |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 245 | arch_get_mdio_control(bus->name); |
| 246 | value = macb_mdio_read(macb, reg); |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 247 | |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 248 | return value; |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 249 | } |
| 250 | |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 251 | int macb_miiphy_write(struct mii_dev *bus, int phy_adr, int devad, int reg, |
| 252 | u16 value) |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 253 | { |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 254 | #ifdef CONFIG_DM_ETH |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 255 | struct udevice *dev = eth_get_dev_by_name(bus->name); |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 256 | struct macb_device *macb = dev_get_priv(dev); |
| 257 | #else |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 258 | struct eth_device *dev = eth_get_dev_by_name(bus->name); |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 259 | struct macb_device *macb = to_macb(dev); |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 260 | #endif |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 261 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 262 | if (macb->phy_addr != phy_adr) |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 263 | return -1; |
| 264 | |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 265 | arch_get_mdio_control(bus->name); |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 266 | macb_mdio_write(macb, reg, value); |
| 267 | |
| 268 | return 0; |
| 269 | } |
| 270 | #endif |
| 271 | |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 272 | #define RX 1 |
| 273 | #define TX 0 |
| 274 | static inline void macb_invalidate_ring_desc(struct macb_device *macb, bool rx) |
| 275 | { |
| 276 | if (rx) |
Heiko Schocher | 8353f9d | 2016-08-29 07:46:11 +0200 | [diff] [blame] | 277 | invalidate_dcache_range(macb->rx_ring_dma, |
| 278 | ALIGN(macb->rx_ring_dma + MACB_RX_DMA_DESC_SIZE, |
| 279 | PKTALIGN)); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 280 | else |
Heiko Schocher | 8353f9d | 2016-08-29 07:46:11 +0200 | [diff] [blame] | 281 | invalidate_dcache_range(macb->tx_ring_dma, |
| 282 | ALIGN(macb->tx_ring_dma + MACB_TX_DMA_DESC_SIZE, |
| 283 | PKTALIGN)); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 284 | } |
| 285 | |
| 286 | static inline void macb_flush_ring_desc(struct macb_device *macb, bool rx) |
| 287 | { |
| 288 | if (rx) |
| 289 | flush_dcache_range(macb->rx_ring_dma, macb->rx_ring_dma + |
Heiko Schocher | 8353f9d | 2016-08-29 07:46:11 +0200 | [diff] [blame] | 290 | ALIGN(MACB_RX_DMA_DESC_SIZE, PKTALIGN)); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 291 | else |
| 292 | flush_dcache_range(macb->tx_ring_dma, macb->tx_ring_dma + |
Heiko Schocher | 8353f9d | 2016-08-29 07:46:11 +0200 | [diff] [blame] | 293 | ALIGN(MACB_TX_DMA_DESC_SIZE, PKTALIGN)); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | static inline void macb_flush_rx_buffer(struct macb_device *macb) |
| 297 | { |
| 298 | flush_dcache_range(macb->rx_buffer_dma, macb->rx_buffer_dma + |
Heiko Schocher | 8353f9d | 2016-08-29 07:46:11 +0200 | [diff] [blame] | 299 | ALIGN(MACB_RX_BUFFER_SIZE, PKTALIGN)); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | static inline void macb_invalidate_rx_buffer(struct macb_device *macb) |
| 303 | { |
| 304 | invalidate_dcache_range(macb->rx_buffer_dma, macb->rx_buffer_dma + |
Heiko Schocher | 8353f9d | 2016-08-29 07:46:11 +0200 | [diff] [blame] | 305 | ALIGN(MACB_RX_BUFFER_SIZE, PKTALIGN)); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 306 | } |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 307 | |
Jon Loeliger | b1d408a | 2007-07-09 17:30:01 -0500 | [diff] [blame] | 308 | #if defined(CONFIG_CMD_NET) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 309 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 310 | static int _macb_send(struct macb_device *macb, const char *name, void *packet, |
| 311 | int length) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 312 | { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 313 | unsigned long paddr, ctrl; |
| 314 | unsigned int tx_head = macb->tx_head; |
| 315 | int i; |
| 316 | |
| 317 | paddr = dma_map_single(packet, length, DMA_TO_DEVICE); |
| 318 | |
| 319 | ctrl = length & TXBUF_FRMLEN_MASK; |
| 320 | ctrl |= TXBUF_FRAME_END; |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 321 | if (tx_head == (MACB_TX_RING_SIZE - 1)) { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 322 | ctrl |= TXBUF_WRAP; |
| 323 | macb->tx_head = 0; |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 324 | } else { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 325 | macb->tx_head++; |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 326 | } |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 327 | |
| 328 | macb->tx_ring[tx_head].ctrl = ctrl; |
| 329 | macb->tx_ring[tx_head].addr = paddr; |
Haavard Skinnemoen | 996e147 | 2007-05-02 13:22:38 +0200 | [diff] [blame] | 330 | barrier(); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 331 | macb_flush_ring_desc(macb, TX); |
| 332 | /* Do we need check paddr and length is dcache line aligned? */ |
Simon Glass | 3d5dcef | 2016-05-05 07:28:10 -0600 | [diff] [blame] | 333 | flush_dcache_range(paddr, paddr + ALIGN(length, ARCH_DMA_MINALIGN)); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 334 | macb_writel(macb, NCR, MACB_BIT(TE) | MACB_BIT(RE) | MACB_BIT(TSTART)); |
| 335 | |
| 336 | /* |
| 337 | * I guess this is necessary because the networking core may |
| 338 | * re-use the transmit buffer as soon as we return... |
| 339 | */ |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 340 | for (i = 0; i <= MACB_TX_TIMEOUT; i++) { |
Haavard Skinnemoen | 996e147 | 2007-05-02 13:22:38 +0200 | [diff] [blame] | 341 | barrier(); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 342 | macb_invalidate_ring_desc(macb, TX); |
Haavard Skinnemoen | 996e147 | 2007-05-02 13:22:38 +0200 | [diff] [blame] | 343 | ctrl = macb->tx_ring[tx_head].ctrl; |
| 344 | if (ctrl & TXBUF_USED) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 345 | break; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 346 | udelay(1); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 347 | } |
| 348 | |
| 349 | dma_unmap_single(packet, length, paddr); |
| 350 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 351 | if (i <= MACB_TX_TIMEOUT) { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 352 | if (ctrl & TXBUF_UNDERRUN) |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 353 | printf("%s: TX underrun\n", name); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 354 | if (ctrl & TXBUF_EXHAUSTED) |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 355 | printf("%s: TX buffers exhausted in mid frame\n", name); |
Haavard Skinnemoen | 996e147 | 2007-05-02 13:22:38 +0200 | [diff] [blame] | 356 | } else { |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 357 | printf("%s: TX timeout\n", name); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | /* No one cares anyway */ |
| 361 | return 0; |
| 362 | } |
| 363 | |
| 364 | static void reclaim_rx_buffers(struct macb_device *macb, |
| 365 | unsigned int new_tail) |
| 366 | { |
| 367 | unsigned int i; |
| 368 | |
| 369 | i = macb->rx_tail; |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 370 | |
| 371 | macb_invalidate_ring_desc(macb, RX); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 372 | while (i > new_tail) { |
| 373 | macb->rx_ring[i].addr &= ~RXADDR_USED; |
| 374 | i++; |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 375 | if (i > MACB_RX_RING_SIZE) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 376 | i = 0; |
| 377 | } |
| 378 | |
| 379 | while (i < new_tail) { |
| 380 | macb->rx_ring[i].addr &= ~RXADDR_USED; |
| 381 | i++; |
| 382 | } |
| 383 | |
Haavard Skinnemoen | 996e147 | 2007-05-02 13:22:38 +0200 | [diff] [blame] | 384 | barrier(); |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 385 | macb_flush_ring_desc(macb, RX); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 386 | macb->rx_tail = new_tail; |
| 387 | } |
| 388 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 389 | static int _macb_recv(struct macb_device *macb, uchar **packetp) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 390 | { |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 391 | unsigned int next_rx_tail = macb->next_rx_tail; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 392 | void *buffer; |
| 393 | int length; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 394 | u32 status; |
| 395 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 396 | macb->wrapped = false; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 397 | for (;;) { |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 398 | macb_invalidate_ring_desc(macb, RX); |
| 399 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 400 | if (!(macb->rx_ring[next_rx_tail].addr & RXADDR_USED)) |
| 401 | return -EAGAIN; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 402 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 403 | status = macb->rx_ring[next_rx_tail].ctrl; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 404 | if (status & RXBUF_FRAME_START) { |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 405 | if (next_rx_tail != macb->rx_tail) |
| 406 | reclaim_rx_buffers(macb, next_rx_tail); |
| 407 | macb->wrapped = false; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 408 | } |
| 409 | |
| 410 | if (status & RXBUF_FRAME_END) { |
| 411 | buffer = macb->rx_buffer + 128 * macb->rx_tail; |
| 412 | length = status & RXBUF_FRMLEN_MASK; |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 413 | |
| 414 | macb_invalidate_rx_buffer(macb); |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 415 | if (macb->wrapped) { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 416 | unsigned int headlen, taillen; |
| 417 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 418 | headlen = 128 * (MACB_RX_RING_SIZE |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 419 | - macb->rx_tail); |
| 420 | taillen = length - headlen; |
Joe Hershberger | 9f09a36 | 2015-04-08 01:41:06 -0500 | [diff] [blame] | 421 | memcpy((void *)net_rx_packets[0], |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 422 | buffer, headlen); |
Joe Hershberger | 9f09a36 | 2015-04-08 01:41:06 -0500 | [diff] [blame] | 423 | memcpy((void *)net_rx_packets[0] + headlen, |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 424 | macb->rx_buffer, taillen); |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 425 | *packetp = (void *)net_rx_packets[0]; |
| 426 | } else { |
| 427 | *packetp = buffer; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 428 | } |
| 429 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 430 | if (++next_rx_tail >= MACB_RX_RING_SIZE) |
| 431 | next_rx_tail = 0; |
| 432 | macb->next_rx_tail = next_rx_tail; |
| 433 | return length; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 434 | } else { |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 435 | if (++next_rx_tail >= MACB_RX_RING_SIZE) { |
| 436 | macb->wrapped = true; |
| 437 | next_rx_tail = 0; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 438 | } |
| 439 | } |
Haavard Skinnemoen | 996e147 | 2007-05-02 13:22:38 +0200 | [diff] [blame] | 440 | barrier(); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 441 | } |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 442 | } |
| 443 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 444 | static void macb_phy_reset(struct macb_device *macb, const char *name) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 445 | { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 446 | int i; |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 447 | u16 status, adv; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 448 | |
| 449 | adv = ADVERTISE_CSMA | ADVERTISE_ALL; |
| 450 | macb_mdio_write(macb, MII_ADVERTISE, adv); |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 451 | printf("%s: Starting autonegotiation...\n", name); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 452 | macb_mdio_write(macb, MII_BMCR, (BMCR_ANENABLE |
| 453 | | BMCR_ANRESTART)); |
| 454 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 455 | for (i = 0; i < MACB_AUTONEG_TIMEOUT / 100; i++) { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 456 | status = macb_mdio_read(macb, MII_BMSR); |
| 457 | if (status & BMSR_ANEGCOMPLETE) |
| 458 | break; |
| 459 | udelay(100); |
| 460 | } |
| 461 | |
| 462 | if (status & BMSR_ANEGCOMPLETE) |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 463 | printf("%s: Autonegotiation complete\n", name); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 464 | else |
| 465 | printf("%s: Autonegotiation timed out (status=0x%04x)\n", |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 466 | name, status); |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 467 | } |
| 468 | |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 469 | static int macb_phy_find(struct macb_device *macb, const char *name) |
Gunnar Rangoy | 6dd74f3 | 2009-01-23 12:56:31 +0100 | [diff] [blame] | 470 | { |
| 471 | int i; |
| 472 | u16 phy_id; |
| 473 | |
| 474 | /* Search for PHY... */ |
| 475 | for (i = 0; i < 32; i++) { |
| 476 | macb->phy_addr = i; |
| 477 | phy_id = macb_mdio_read(macb, MII_PHYSID1); |
| 478 | if (phy_id != 0xffff) { |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 479 | printf("%s: PHY present at %d\n", name, i); |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 480 | return 0; |
Gunnar Rangoy | 6dd74f3 | 2009-01-23 12:56:31 +0100 | [diff] [blame] | 481 | } |
| 482 | } |
| 483 | |
| 484 | /* PHY isn't up to snuff */ |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 485 | printf("%s: PHY not found\n", name); |
Gunnar Rangoy | 6dd74f3 | 2009-01-23 12:56:31 +0100 | [diff] [blame] | 486 | |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 487 | return -ENODEV; |
| 488 | } |
| 489 | |
| 490 | /** |
| 491 | * macb_linkspd_cb - Linkspeed change callback function |
| 492 | * @regs: Base Register of MACB devices |
| 493 | * @speed: Linkspeed |
| 494 | * Returns 0 when operation success and negative errno number |
| 495 | * when operation failed. |
| 496 | */ |
| 497 | int __weak macb_linkspd_cb(void *regs, unsigned int speed) |
| 498 | { |
Gunnar Rangoy | 6dd74f3 | 2009-01-23 12:56:31 +0100 | [diff] [blame] | 499 | return 0; |
| 500 | } |
Gunnar Rangoy | 6dd74f3 | 2009-01-23 12:56:31 +0100 | [diff] [blame] | 501 | |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 502 | #ifdef CONFIG_DM_ETH |
| 503 | static int macb_phy_init(struct udevice *dev, const char *name) |
| 504 | #else |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 505 | static int macb_phy_init(struct macb_device *macb, const char *name) |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 506 | #endif |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 507 | { |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 508 | #ifdef CONFIG_DM_ETH |
| 509 | struct macb_device *macb = dev_get_priv(dev); |
| 510 | #endif |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 511 | u32 ncfgr; |
| 512 | u16 phy_id, status, adv, lpa; |
| 513 | int media, speed, duplex; |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 514 | int ret; |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 515 | int i; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 516 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 517 | arch_get_mdio_control(name); |
Gunnar Rangoy | 6dd74f3 | 2009-01-23 12:56:31 +0100 | [diff] [blame] | 518 | /* Auto-detect phy_addr */ |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 519 | ret = macb_phy_find(macb, name); |
| 520 | if (ret) |
| 521 | return ret; |
Gunnar Rangoy | 6dd74f3 | 2009-01-23 12:56:31 +0100 | [diff] [blame] | 522 | |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 523 | /* Check if the PHY is up to snuff... */ |
| 524 | phy_id = macb_mdio_read(macb, MII_PHYSID1); |
| 525 | if (phy_id == 0xffff) { |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 526 | printf("%s: No PHY present\n", name); |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 527 | return -ENODEV; |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 528 | } |
| 529 | |
Bo Shen | 7d91deb | 2013-04-24 15:59:27 +0800 | [diff] [blame] | 530 | #ifdef CONFIG_PHYLIB |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 531 | #ifdef CONFIG_DM_ETH |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 532 | macb->phydev = phy_connect(macb->bus, macb->phy_addr, dev, |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 533 | macb->phy_interface); |
| 534 | #else |
Bo Shen | e04fe55 | 2013-08-19 10:35:47 +0800 | [diff] [blame] | 535 | /* need to consider other phy interface mode */ |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 536 | macb->phydev = phy_connect(macb->bus, macb->phy_addr, &macb->netdev, |
Bo Shen | e04fe55 | 2013-08-19 10:35:47 +0800 | [diff] [blame] | 537 | PHY_INTERFACE_MODE_RGMII); |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 538 | #endif |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 539 | if (!macb->phydev) { |
Bo Shen | e04fe55 | 2013-08-19 10:35:47 +0800 | [diff] [blame] | 540 | printf("phy_connect failed\n"); |
| 541 | return -ENODEV; |
| 542 | } |
| 543 | |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 544 | phy_config(macb->phydev); |
Bo Shen | 7d91deb | 2013-04-24 15:59:27 +0800 | [diff] [blame] | 545 | #endif |
| 546 | |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 547 | status = macb_mdio_read(macb, MII_BMSR); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 548 | if (!(status & BMSR_LSTATUS)) { |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 549 | /* Try to re-negotiate if we don't have link already. */ |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 550 | macb_phy_reset(macb, name); |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 551 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 552 | for (i = 0; i < MACB_AUTONEG_TIMEOUT / 100; i++) { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 553 | status = macb_mdio_read(macb, MII_BMSR); |
| 554 | if (status & BMSR_LSTATUS) |
| 555 | break; |
Haavard Skinnemoen | b3ad772 | 2007-05-02 13:31:53 +0200 | [diff] [blame] | 556 | udelay(100); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 557 | } |
| 558 | } |
| 559 | |
| 560 | if (!(status & BMSR_LSTATUS)) { |
| 561 | printf("%s: link down (status: 0x%04x)\n", |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 562 | name, status); |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 563 | return -ENETDOWN; |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 564 | } |
| 565 | |
Gregory CLEMENT | f1a1e58 | 2015-12-16 14:50:34 +0100 | [diff] [blame] | 566 | /* First check for GMAC and that it is GiB capable */ |
| 567 | if (gem_is_gigabit_capable(macb)) { |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 568 | lpa = macb_mdio_read(macb, MII_STAT1000); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 569 | |
Andreas Bießmann | d43a89a | 2014-09-18 23:46:48 +0200 | [diff] [blame] | 570 | if (lpa & (LPA_1000FULL | LPA_1000HALF)) { |
| 571 | duplex = ((lpa & LPA_1000FULL) ? 1 : 0); |
| 572 | |
| 573 | printf("%s: link up, 1000Mbps %s-duplex (lpa: 0x%04x)\n", |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 574 | name, |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 575 | duplex ? "full" : "half", |
| 576 | lpa); |
| 577 | |
| 578 | ncfgr = macb_readl(macb, NCFGR); |
Andreas Bießmann | d43a89a | 2014-09-18 23:46:48 +0200 | [diff] [blame] | 579 | ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD)); |
| 580 | ncfgr |= GEM_BIT(GBE); |
| 581 | |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 582 | if (duplex) |
| 583 | ncfgr |= MACB_BIT(FD); |
Andreas Bießmann | d43a89a | 2014-09-18 23:46:48 +0200 | [diff] [blame] | 584 | |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 585 | macb_writel(macb, NCFGR, ncfgr); |
| 586 | |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 587 | ret = macb_linkspd_cb(macb->regs, _1000BASET); |
| 588 | if (ret) |
| 589 | return ret; |
| 590 | |
| 591 | return 0; |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 592 | } |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 593 | } |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 594 | |
| 595 | /* fall back for EMAC checking */ |
| 596 | adv = macb_mdio_read(macb, MII_ADVERTISE); |
| 597 | lpa = macb_mdio_read(macb, MII_LPA); |
| 598 | media = mii_nway_result(lpa & adv); |
| 599 | speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF) |
| 600 | ? 1 : 0); |
| 601 | duplex = (media & ADVERTISE_FULL) ? 1 : 0; |
| 602 | printf("%s: link up, %sMbps %s-duplex (lpa: 0x%04x)\n", |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 603 | name, |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 604 | speed ? "100" : "10", |
| 605 | duplex ? "full" : "half", |
| 606 | lpa); |
| 607 | |
| 608 | ncfgr = macb_readl(macb, NCFGR); |
Bo Shen | fe19ef3 | 2015-03-04 13:35:16 +0800 | [diff] [blame] | 609 | ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD) | GEM_BIT(GBE)); |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 610 | if (speed) { |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 611 | ncfgr |= MACB_BIT(SPD); |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 612 | ret = macb_linkspd_cb(macb->regs, _100BASET); |
| 613 | } else { |
| 614 | ret = macb_linkspd_cb(macb->regs, _10BASET); |
| 615 | } |
| 616 | |
| 617 | if (ret) |
| 618 | return ret; |
| 619 | |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 620 | if (duplex) |
| 621 | ncfgr |= MACB_BIT(FD); |
| 622 | macb_writel(macb, NCFGR, ncfgr); |
| 623 | |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 624 | return 0; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 625 | } |
| 626 | |
Wu, Josh | 012d68d | 2015-06-03 16:45:44 +0800 | [diff] [blame] | 627 | static int gmac_init_multi_queues(struct macb_device *macb) |
| 628 | { |
| 629 | int i, num_queues = 1; |
| 630 | u32 queue_mask; |
| 631 | |
| 632 | /* bit 0 is never set but queue 0 always exists */ |
| 633 | queue_mask = gem_readl(macb, DCFG6) & 0xff; |
| 634 | queue_mask |= 0x1; |
| 635 | |
| 636 | for (i = 1; i < MACB_MAX_QUEUES; i++) |
| 637 | if (queue_mask & (1 << i)) |
| 638 | num_queues++; |
| 639 | |
| 640 | macb->dummy_desc->ctrl = TXBUF_USED; |
| 641 | macb->dummy_desc->addr = 0; |
| 642 | flush_dcache_range(macb->dummy_desc_dma, macb->dummy_desc_dma + |
Heiko Schocher | 8353f9d | 2016-08-29 07:46:11 +0200 | [diff] [blame] | 643 | ALIGN(MACB_TX_DUMMY_DMA_DESC_SIZE, PKTALIGN)); |
Wu, Josh | 012d68d | 2015-06-03 16:45:44 +0800 | [diff] [blame] | 644 | |
| 645 | for (i = 1; i < num_queues; i++) |
| 646 | gem_writel_queue_TBQP(macb, macb->dummy_desc_dma, i - 1); |
| 647 | |
| 648 | return 0; |
| 649 | } |
| 650 | |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 651 | #ifdef CONFIG_DM_ETH |
| 652 | static int _macb_init(struct udevice *dev, const char *name) |
| 653 | #else |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 654 | static int _macb_init(struct macb_device *macb, const char *name) |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 655 | #endif |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 656 | { |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 657 | #ifdef CONFIG_DM_ETH |
| 658 | struct macb_device *macb = dev_get_priv(dev); |
| 659 | #endif |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 660 | unsigned long paddr; |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 661 | int ret; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 662 | int i; |
| 663 | |
| 664 | /* |
| 665 | * macb_halt should have been called at some point before now, |
| 666 | * so we'll assume the controller is idle. |
| 667 | */ |
| 668 | |
| 669 | /* initialize DMA descriptors */ |
| 670 | paddr = macb->rx_buffer_dma; |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 671 | for (i = 0; i < MACB_RX_RING_SIZE; i++) { |
| 672 | if (i == (MACB_RX_RING_SIZE - 1)) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 673 | paddr |= RXADDR_WRAP; |
| 674 | macb->rx_ring[i].addr = paddr; |
| 675 | macb->rx_ring[i].ctrl = 0; |
| 676 | paddr += 128; |
| 677 | } |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 678 | macb_flush_ring_desc(macb, RX); |
| 679 | macb_flush_rx_buffer(macb); |
| 680 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 681 | for (i = 0; i < MACB_TX_RING_SIZE; i++) { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 682 | macb->tx_ring[i].addr = 0; |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 683 | if (i == (MACB_TX_RING_SIZE - 1)) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 684 | macb->tx_ring[i].ctrl = TXBUF_USED | TXBUF_WRAP; |
| 685 | else |
| 686 | macb->tx_ring[i].ctrl = TXBUF_USED; |
| 687 | } |
Wu, Josh | 1805240 | 2014-05-27 16:31:05 +0800 | [diff] [blame] | 688 | macb_flush_ring_desc(macb, TX); |
| 689 | |
Andreas Bießmann | 1e86812 | 2014-05-26 22:55:18 +0200 | [diff] [blame] | 690 | macb->rx_tail = 0; |
| 691 | macb->tx_head = 0; |
| 692 | macb->tx_tail = 0; |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 693 | macb->next_rx_tail = 0; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 694 | |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 695 | #ifdef CONFIG_MACB_ZYNQ |
| 696 | macb_writel(macb, DMACFG, MACB_ZYNQ_GEM_DMACR_INIT); |
| 697 | #endif |
| 698 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 699 | macb_writel(macb, RBQP, macb->rx_ring_dma); |
| 700 | macb_writel(macb, TBQP, macb->tx_ring_dma); |
| 701 | |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 702 | if (macb_is_gem(macb)) { |
Wu, Josh | 012d68d | 2015-06-03 16:45:44 +0800 | [diff] [blame] | 703 | /* Check the multi queue and initialize the queue for tx */ |
| 704 | gmac_init_multi_queues(macb); |
| 705 | |
Bo Shen | 4660b33 | 2014-11-10 15:24:01 +0800 | [diff] [blame] | 706 | /* |
| 707 | * When the GMAC IP with GE feature, this bit is used to |
| 708 | * select interface between RGMII and GMII. |
| 709 | * When the GMAC IP without GE feature, this bit is used |
| 710 | * to select interface between RMII and MII. |
| 711 | */ |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 712 | #ifdef CONFIG_DM_ETH |
Wenyou Yang | 5653dbc | 2017-04-20 11:13:13 +0800 | [diff] [blame] | 713 | if ((macb->phy_interface == PHY_INTERFACE_MODE_RMII) || |
| 714 | (macb->phy_interface == PHY_INTERFACE_MODE_RGMII)) |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 715 | gem_writel(macb, UR, GEM_BIT(RGMII)); |
| 716 | else |
| 717 | gem_writel(macb, UR, 0); |
| 718 | #else |
Bo Shen | 4660b33 | 2014-11-10 15:24:01 +0800 | [diff] [blame] | 719 | #if defined(CONFIG_RGMII) || defined(CONFIG_RMII) |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 720 | gem_writel(macb, UR, GEM_BIT(RGMII)); |
| 721 | #else |
| 722 | gem_writel(macb, UR, 0); |
| 723 | #endif |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 724 | #endif |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 725 | } else { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 726 | /* choose RMII or MII mode. This depends on the board */ |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 727 | #ifdef CONFIG_DM_ETH |
| 728 | #ifdef CONFIG_AT91FAMILY |
| 729 | if (macb->phy_interface == PHY_INTERFACE_MODE_RMII) { |
| 730 | macb_writel(macb, USRIO, |
| 731 | MACB_BIT(RMII) | MACB_BIT(CLKEN)); |
| 732 | } else { |
| 733 | macb_writel(macb, USRIO, MACB_BIT(CLKEN)); |
| 734 | } |
| 735 | #else |
| 736 | if (macb->phy_interface == PHY_INTERFACE_MODE_RMII) |
| 737 | macb_writel(macb, USRIO, 0); |
| 738 | else |
| 739 | macb_writel(macb, USRIO, MACB_BIT(MII)); |
| 740 | #endif |
| 741 | #else |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 742 | #ifdef CONFIG_RMII |
Bo Shen | cc29ce5 | 2013-04-24 15:59:26 +0800 | [diff] [blame] | 743 | #ifdef CONFIG_AT91FAMILY |
Stelian Pop | 87a8254 | 2008-01-03 21:15:56 +0000 | [diff] [blame] | 744 | macb_writel(macb, USRIO, MACB_BIT(RMII) | MACB_BIT(CLKEN)); |
| 745 | #else |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 746 | macb_writel(macb, USRIO, 0); |
Stelian Pop | 87a8254 | 2008-01-03 21:15:56 +0000 | [diff] [blame] | 747 | #endif |
| 748 | #else |
Bo Shen | cc29ce5 | 2013-04-24 15:59:26 +0800 | [diff] [blame] | 749 | #ifdef CONFIG_AT91FAMILY |
Stelian Pop | 87a8254 | 2008-01-03 21:15:56 +0000 | [diff] [blame] | 750 | macb_writel(macb, USRIO, MACB_BIT(CLKEN)); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 751 | #else |
| 752 | macb_writel(macb, USRIO, MACB_BIT(MII)); |
| 753 | #endif |
Stelian Pop | 87a8254 | 2008-01-03 21:15:56 +0000 | [diff] [blame] | 754 | #endif /* CONFIG_RMII */ |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 755 | #endif |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 756 | } |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 757 | |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 758 | #ifdef CONFIG_DM_ETH |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 759 | ret = macb_phy_init(dev, name); |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 760 | #else |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 761 | ret = macb_phy_init(macb, name); |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 762 | #endif |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 763 | if (ret) |
| 764 | return ret; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 765 | |
| 766 | /* Enable TX and RX */ |
| 767 | macb_writel(macb, NCR, MACB_BIT(TE) | MACB_BIT(RE)); |
| 768 | |
Ben Warren | de9fcb5 | 2008-01-09 18:15:53 -0500 | [diff] [blame] | 769 | return 0; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 770 | } |
| 771 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 772 | static void _macb_halt(struct macb_device *macb) |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 773 | { |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 774 | u32 ncr, tsr; |
| 775 | |
| 776 | /* Halt the controller and wait for any ongoing transmission to end. */ |
| 777 | ncr = macb_readl(macb, NCR); |
| 778 | ncr |= MACB_BIT(THALT); |
| 779 | macb_writel(macb, NCR, ncr); |
| 780 | |
| 781 | do { |
| 782 | tsr = macb_readl(macb, TSR); |
| 783 | } while (tsr & MACB_BIT(TGO)); |
| 784 | |
| 785 | /* Disable TX and RX, and clear statistics */ |
| 786 | macb_writel(macb, NCR, MACB_BIT(CLRSTAT)); |
| 787 | } |
| 788 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 789 | static int _macb_write_hwaddr(struct macb_device *macb, unsigned char *enetaddr) |
Ben Warren | 33f8431 | 2010-06-01 11:55:42 -0700 | [diff] [blame] | 790 | { |
Ben Warren | 33f8431 | 2010-06-01 11:55:42 -0700 | [diff] [blame] | 791 | u32 hwaddr_bottom; |
| 792 | u16 hwaddr_top; |
| 793 | |
| 794 | /* set hardware address */ |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 795 | hwaddr_bottom = enetaddr[0] | enetaddr[1] << 8 | |
| 796 | enetaddr[2] << 16 | enetaddr[3] << 24; |
Ben Warren | 33f8431 | 2010-06-01 11:55:42 -0700 | [diff] [blame] | 797 | macb_writel(macb, SA1B, hwaddr_bottom); |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 798 | hwaddr_top = enetaddr[4] | enetaddr[5] << 8; |
Ben Warren | 33f8431 | 2010-06-01 11:55:42 -0700 | [diff] [blame] | 799 | macb_writel(macb, SA1T, hwaddr_top); |
| 800 | return 0; |
| 801 | } |
| 802 | |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 803 | static u32 macb_mdc_clk_div(int id, struct macb_device *macb) |
| 804 | { |
| 805 | u32 config; |
Wenyou Yang | 1944936 | 2017-02-14 16:24:40 +0800 | [diff] [blame] | 806 | #if defined(CONFIG_DM_ETH) && defined(CONFIG_CLK) |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 807 | unsigned long macb_hz = macb->pclk_rate; |
| 808 | #else |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 809 | unsigned long macb_hz = get_macb_pclk_rate(id); |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 810 | #endif |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 811 | |
| 812 | if (macb_hz < 20000000) |
| 813 | config = MACB_BF(CLK, MACB_CLK_DIV8); |
| 814 | else if (macb_hz < 40000000) |
| 815 | config = MACB_BF(CLK, MACB_CLK_DIV16); |
| 816 | else if (macb_hz < 80000000) |
| 817 | config = MACB_BF(CLK, MACB_CLK_DIV32); |
| 818 | else |
| 819 | config = MACB_BF(CLK, MACB_CLK_DIV64); |
| 820 | |
| 821 | return config; |
| 822 | } |
| 823 | |
| 824 | static u32 gem_mdc_clk_div(int id, struct macb_device *macb) |
| 825 | { |
| 826 | u32 config; |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 827 | |
Wenyou Yang | 1944936 | 2017-02-14 16:24:40 +0800 | [diff] [blame] | 828 | #if defined(CONFIG_DM_ETH) && defined(CONFIG_CLK) |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 829 | unsigned long macb_hz = macb->pclk_rate; |
| 830 | #else |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 831 | unsigned long macb_hz = get_macb_pclk_rate(id); |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 832 | #endif |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 833 | |
| 834 | if (macb_hz < 20000000) |
| 835 | config = GEM_BF(CLK, GEM_CLK_DIV8); |
| 836 | else if (macb_hz < 40000000) |
| 837 | config = GEM_BF(CLK, GEM_CLK_DIV16); |
| 838 | else if (macb_hz < 80000000) |
| 839 | config = GEM_BF(CLK, GEM_CLK_DIV32); |
| 840 | else if (macb_hz < 120000000) |
| 841 | config = GEM_BF(CLK, GEM_CLK_DIV48); |
| 842 | else if (macb_hz < 160000000) |
| 843 | config = GEM_BF(CLK, GEM_CLK_DIV64); |
| 844 | else |
| 845 | config = GEM_BF(CLK, GEM_CLK_DIV96); |
| 846 | |
| 847 | return config; |
| 848 | } |
| 849 | |
Bo Shen | 0e6624a | 2013-09-18 15:07:44 +0800 | [diff] [blame] | 850 | /* |
| 851 | * Get the DMA bus width field of the network configuration register that we |
| 852 | * should program. We find the width from decoding the design configuration |
| 853 | * register to find the maximum supported data bus width. |
| 854 | */ |
| 855 | static u32 macb_dbw(struct macb_device *macb) |
| 856 | { |
| 857 | switch (GEM_BFEXT(DBWDEF, gem_readl(macb, DCFG1))) { |
| 858 | case 4: |
| 859 | return GEM_BF(DBW, GEM_DBW128); |
| 860 | case 2: |
| 861 | return GEM_BF(DBW, GEM_DBW64); |
| 862 | case 1: |
| 863 | default: |
| 864 | return GEM_BF(DBW, GEM_DBW32); |
| 865 | } |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 866 | } |
| 867 | |
| 868 | static void _macb_eth_initialize(struct macb_device *macb) |
| 869 | { |
| 870 | int id = 0; /* This is not used by functions we call */ |
| 871 | u32 ncfgr; |
| 872 | |
| 873 | /* TODO: we need check the rx/tx_ring_dma is dcache line aligned */ |
| 874 | macb->rx_buffer = dma_alloc_coherent(MACB_RX_BUFFER_SIZE, |
| 875 | &macb->rx_buffer_dma); |
| 876 | macb->rx_ring = dma_alloc_coherent(MACB_RX_DMA_DESC_SIZE, |
| 877 | &macb->rx_ring_dma); |
| 878 | macb->tx_ring = dma_alloc_coherent(MACB_TX_DMA_DESC_SIZE, |
| 879 | &macb->tx_ring_dma); |
| 880 | macb->dummy_desc = dma_alloc_coherent(MACB_TX_DUMMY_DMA_DESC_SIZE, |
| 881 | &macb->dummy_desc_dma); |
| 882 | |
| 883 | /* |
| 884 | * Do some basic initialization so that we at least can talk |
| 885 | * to the PHY |
| 886 | */ |
| 887 | if (macb_is_gem(macb)) { |
| 888 | ncfgr = gem_mdc_clk_div(id, macb); |
| 889 | ncfgr |= macb_dbw(macb); |
| 890 | } else { |
| 891 | ncfgr = macb_mdc_clk_div(id, macb); |
| 892 | } |
| 893 | |
| 894 | macb_writel(macb, NCFGR, ncfgr); |
| 895 | } |
| 896 | |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 897 | #ifndef CONFIG_DM_ETH |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 898 | static int macb_send(struct eth_device *netdev, void *packet, int length) |
| 899 | { |
| 900 | struct macb_device *macb = to_macb(netdev); |
| 901 | |
| 902 | return _macb_send(macb, netdev->name, packet, length); |
Bo Shen | 0e6624a | 2013-09-18 15:07:44 +0800 | [diff] [blame] | 903 | } |
| 904 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 905 | static int macb_recv(struct eth_device *netdev) |
| 906 | { |
| 907 | struct macb_device *macb = to_macb(netdev); |
| 908 | uchar *packet; |
| 909 | int length; |
| 910 | |
| 911 | macb->wrapped = false; |
| 912 | for (;;) { |
| 913 | macb->next_rx_tail = macb->rx_tail; |
| 914 | length = _macb_recv(macb, &packet); |
| 915 | if (length >= 0) { |
| 916 | net_process_received_packet(packet, length); |
| 917 | reclaim_rx_buffers(macb, macb->next_rx_tail); |
Heinrich Schuchardt | 6c4aae9 | 2018-03-18 11:32:53 +0100 | [diff] [blame] | 918 | } else { |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 919 | return length; |
| 920 | } |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | static int macb_init(struct eth_device *netdev, bd_t *bd) |
| 925 | { |
| 926 | struct macb_device *macb = to_macb(netdev); |
| 927 | |
| 928 | return _macb_init(macb, netdev->name); |
| 929 | } |
| 930 | |
| 931 | static void macb_halt(struct eth_device *netdev) |
| 932 | { |
| 933 | struct macb_device *macb = to_macb(netdev); |
| 934 | |
| 935 | return _macb_halt(macb); |
| 936 | } |
| 937 | |
| 938 | static int macb_write_hwaddr(struct eth_device *netdev) |
| 939 | { |
| 940 | struct macb_device *macb = to_macb(netdev); |
| 941 | |
| 942 | return _macb_write_hwaddr(macb, netdev->enetaddr); |
| 943 | } |
| 944 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 945 | int macb_eth_initialize(int id, void *regs, unsigned int phy_addr) |
| 946 | { |
| 947 | struct macb_device *macb; |
| 948 | struct eth_device *netdev; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 949 | |
| 950 | macb = malloc(sizeof(struct macb_device)); |
| 951 | if (!macb) { |
| 952 | printf("Error: Failed to allocate memory for MACB%d\n", id); |
| 953 | return -1; |
| 954 | } |
| 955 | memset(macb, 0, sizeof(struct macb_device)); |
| 956 | |
| 957 | netdev = &macb->netdev; |
| 958 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 959 | macb->regs = regs; |
| 960 | macb->phy_addr = phy_addr; |
| 961 | |
Bo Shen | 6f7d7d9 | 2013-04-24 15:59:28 +0800 | [diff] [blame] | 962 | if (macb_is_gem(macb)) |
| 963 | sprintf(netdev->name, "gmac%d", id); |
| 964 | else |
| 965 | sprintf(netdev->name, "macb%d", id); |
| 966 | |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 967 | netdev->init = macb_init; |
| 968 | netdev->halt = macb_halt; |
| 969 | netdev->send = macb_send; |
| 970 | netdev->recv = macb_recv; |
Ben Warren | 33f8431 | 2010-06-01 11:55:42 -0700 | [diff] [blame] | 971 | netdev->write_hwaddr = macb_write_hwaddr; |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 972 | |
Simon Glass | 5ad2751 | 2016-05-05 07:28:09 -0600 | [diff] [blame] | 973 | _macb_eth_initialize(macb); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 974 | |
| 975 | eth_register(netdev); |
| 976 | |
Bo Shen | 7d91deb | 2013-04-24 15:59:27 +0800 | [diff] [blame] | 977 | #if defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB) |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 978 | int retval; |
| 979 | struct mii_dev *mdiodev = mdio_alloc(); |
| 980 | if (!mdiodev) |
| 981 | return -ENOMEM; |
| 982 | strncpy(mdiodev->name, netdev->name, MDIO_NAME_LEN); |
| 983 | mdiodev->read = macb_miiphy_read; |
| 984 | mdiodev->write = macb_miiphy_write; |
| 985 | |
| 986 | retval = mdio_register(mdiodev); |
| 987 | if (retval < 0) |
| 988 | return retval; |
Bo Shen | 7d91deb | 2013-04-24 15:59:27 +0800 | [diff] [blame] | 989 | macb->bus = miiphy_get_dev_by_name(netdev->name); |
Semih Hazar | 790088e | 2009-12-17 15:07:15 +0200 | [diff] [blame] | 990 | #endif |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 991 | return 0; |
| 992 | } |
| 993 | #endif /* !CONFIG_DM_ETH */ |
| 994 | |
| 995 | #ifdef CONFIG_DM_ETH |
| 996 | |
| 997 | static int macb_start(struct udevice *dev) |
| 998 | { |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 999 | return _macb_init(dev, dev->name); |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1000 | } |
| 1001 | |
| 1002 | static int macb_send(struct udevice *dev, void *packet, int length) |
| 1003 | { |
| 1004 | struct macb_device *macb = dev_get_priv(dev); |
| 1005 | |
| 1006 | return _macb_send(macb, dev->name, packet, length); |
| 1007 | } |
| 1008 | |
| 1009 | static int macb_recv(struct udevice *dev, int flags, uchar **packetp) |
| 1010 | { |
| 1011 | struct macb_device *macb = dev_get_priv(dev); |
| 1012 | |
| 1013 | macb->next_rx_tail = macb->rx_tail; |
| 1014 | macb->wrapped = false; |
| 1015 | |
| 1016 | return _macb_recv(macb, packetp); |
| 1017 | } |
| 1018 | |
| 1019 | static int macb_free_pkt(struct udevice *dev, uchar *packet, int length) |
| 1020 | { |
| 1021 | struct macb_device *macb = dev_get_priv(dev); |
| 1022 | |
| 1023 | reclaim_rx_buffers(macb, macb->next_rx_tail); |
| 1024 | |
| 1025 | return 0; |
| 1026 | } |
| 1027 | |
| 1028 | static void macb_stop(struct udevice *dev) |
| 1029 | { |
| 1030 | struct macb_device *macb = dev_get_priv(dev); |
| 1031 | |
| 1032 | _macb_halt(macb); |
| 1033 | } |
| 1034 | |
| 1035 | static int macb_write_hwaddr(struct udevice *dev) |
| 1036 | { |
| 1037 | struct eth_pdata *plat = dev_get_platdata(dev); |
| 1038 | struct macb_device *macb = dev_get_priv(dev); |
| 1039 | |
| 1040 | return _macb_write_hwaddr(macb, plat->enetaddr); |
| 1041 | } |
| 1042 | |
| 1043 | static const struct eth_ops macb_eth_ops = { |
| 1044 | .start = macb_start, |
| 1045 | .send = macb_send, |
| 1046 | .recv = macb_recv, |
| 1047 | .stop = macb_stop, |
| 1048 | .free_pkt = macb_free_pkt, |
| 1049 | .write_hwaddr = macb_write_hwaddr, |
| 1050 | }; |
| 1051 | |
Wenyou Yang | 1944936 | 2017-02-14 16:24:40 +0800 | [diff] [blame] | 1052 | #ifdef CONFIG_CLK |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 1053 | static int macb_enable_clk(struct udevice *dev) |
| 1054 | { |
| 1055 | struct macb_device *macb = dev_get_priv(dev); |
| 1056 | struct clk clk; |
| 1057 | ulong clk_rate; |
| 1058 | int ret; |
| 1059 | |
| 1060 | ret = clk_get_by_index(dev, 0, &clk); |
| 1061 | if (ret) |
| 1062 | return -EINVAL; |
| 1063 | |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 1064 | /* |
| 1065 | * Zynq clock driver didn't support for enable or disable |
| 1066 | * clock. Hence, clk_enable() didn't apply for Zynq |
| 1067 | */ |
| 1068 | #ifndef CONFIG_MACB_ZYNQ |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 1069 | ret = clk_enable(&clk); |
| 1070 | if (ret) |
| 1071 | return ret; |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 1072 | #endif |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 1073 | |
| 1074 | clk_rate = clk_get_rate(&clk); |
| 1075 | if (!clk_rate) |
| 1076 | return -EINVAL; |
| 1077 | |
| 1078 | macb->pclk_rate = clk_rate; |
| 1079 | |
| 1080 | return 0; |
| 1081 | } |
Wenyou Yang | 1944936 | 2017-02-14 16:24:40 +0800 | [diff] [blame] | 1082 | #endif |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 1083 | |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1084 | static int macb_eth_probe(struct udevice *dev) |
| 1085 | { |
| 1086 | struct eth_pdata *pdata = dev_get_platdata(dev); |
| 1087 | struct macb_device *macb = dev_get_priv(dev); |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 1088 | const char *phy_mode; |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 1089 | __maybe_unused int ret; |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 1090 | |
Simon Glass | dd79d6e | 2017-01-17 16:52:55 -0700 | [diff] [blame] | 1091 | phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode", |
| 1092 | NULL); |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 1093 | if (phy_mode) |
| 1094 | macb->phy_interface = phy_get_interface_by_name(phy_mode); |
| 1095 | if (macb->phy_interface == -1) { |
| 1096 | debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode); |
| 1097 | return -EINVAL; |
| 1098 | } |
Wenyou Yang | 7b81185 | 2016-05-17 13:11:35 +0800 | [diff] [blame] | 1099 | |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1100 | macb->regs = (void *)pdata->iobase; |
| 1101 | |
Wenyou Yang | 1944936 | 2017-02-14 16:24:40 +0800 | [diff] [blame] | 1102 | #ifdef CONFIG_CLK |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 1103 | ret = macb_enable_clk(dev); |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 1104 | if (ret) |
| 1105 | return ret; |
Wenyou Yang | 1944936 | 2017-02-14 16:24:40 +0800 | [diff] [blame] | 1106 | #endif |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 1107 | |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1108 | _macb_eth_initialize(macb); |
Wenyou Yang | 3d8d348 | 2016-11-02 10:06:56 +0800 | [diff] [blame] | 1109 | |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1110 | #if defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB) |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 1111 | macb->bus = mdio_alloc(); |
| 1112 | if (!macb->bus) |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 1113 | return -ENOMEM; |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 1114 | strncpy(macb->bus->name, dev->name, MDIO_NAME_LEN); |
| 1115 | macb->bus->read = macb_miiphy_read; |
| 1116 | macb->bus->write = macb_miiphy_write; |
Joe Hershberger | 1fbcbed | 2016-08-08 11:28:38 -0500 | [diff] [blame] | 1117 | |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 1118 | ret = mdio_register(macb->bus); |
| 1119 | if (ret < 0) |
| 1120 | return ret; |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1121 | macb->bus = miiphy_get_dev_by_name(dev->name); |
| 1122 | #endif |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 1123 | |
| 1124 | return 0; |
| 1125 | } |
| 1126 | |
| 1127 | static int macb_eth_remove(struct udevice *dev) |
| 1128 | { |
| 1129 | struct macb_device *macb = dev_get_priv(dev); |
| 1130 | |
| 1131 | #ifdef CONFIG_PHYLIB |
| 1132 | free(macb->phydev); |
| 1133 | #endif |
| 1134 | mdio_unregister(macb->bus); |
| 1135 | mdio_free(macb->bus); |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1136 | |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 1137 | return 0; |
| 1138 | } |
| 1139 | |
| 1140 | /** |
| 1141 | * macb_late_eth_ofdata_to_platdata |
| 1142 | * @dev: udevice struct |
| 1143 | * Returns 0 when operation success and negative errno number |
| 1144 | * when operation failed. |
| 1145 | */ |
| 1146 | int __weak macb_late_eth_ofdata_to_platdata(struct udevice *dev) |
| 1147 | { |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1148 | return 0; |
| 1149 | } |
| 1150 | |
| 1151 | static int macb_eth_ofdata_to_platdata(struct udevice *dev) |
| 1152 | { |
| 1153 | struct eth_pdata *pdata = dev_get_platdata(dev); |
| 1154 | |
Simon Glass | ba1dea4 | 2017-05-17 17:18:05 -0600 | [diff] [blame] | 1155 | pdata->iobase = devfdt_get_addr(dev); |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 1156 | |
| 1157 | return macb_late_eth_ofdata_to_platdata(dev); |
Haavard Skinnemoen | 51c8f24 | 2006-01-20 10:03:34 +0100 | [diff] [blame] | 1158 | } |
| 1159 | |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1160 | static const struct udevice_id macb_eth_ids[] = { |
| 1161 | { .compatible = "cdns,macb" }, |
Wenyou Yang | 8f15540 | 2017-04-14 14:36:05 +0800 | [diff] [blame] | 1162 | { .compatible = "cdns,at91sam9260-macb" }, |
| 1163 | { .compatible = "atmel,sama5d2-gem" }, |
| 1164 | { .compatible = "atmel,sama5d3-gem" }, |
| 1165 | { .compatible = "atmel,sama5d4-gem" }, |
Wilson Lee | 41d6d1e | 2017-08-22 20:25:07 -0700 | [diff] [blame] | 1166 | { .compatible = "cdns,zynq-gem" }, |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1167 | { } |
| 1168 | }; |
| 1169 | |
| 1170 | U_BOOT_DRIVER(eth_macb) = { |
| 1171 | .name = "eth_macb", |
| 1172 | .id = UCLASS_ETH, |
| 1173 | .of_match = macb_eth_ids, |
| 1174 | .ofdata_to_platdata = macb_eth_ofdata_to_platdata, |
| 1175 | .probe = macb_eth_probe, |
Wenyou Yang | 44835ea | 2017-04-14 14:36:04 +0800 | [diff] [blame] | 1176 | .remove = macb_eth_remove, |
Simon Glass | 75c5d18 | 2016-05-05 07:28:11 -0600 | [diff] [blame] | 1177 | .ops = &macb_eth_ops, |
| 1178 | .priv_auto_alloc_size = sizeof(struct macb_device), |
| 1179 | .platdata_auto_alloc_size = sizeof(struct eth_pdata), |
| 1180 | }; |
| 1181 | #endif |
| 1182 | |
Jon Loeliger | b1d408a | 2007-07-09 17:30:01 -0500 | [diff] [blame] | 1183 | #endif |