1 /* 2 * SMSC LAN9[12]1[567] Network driver 3 * 4 * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de> 5 * 6 * See file CREDITS for list of people who contributed to this 7 * project. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of 12 * the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22 * MA 02111-1307 USA 23 */ 24 25 #ifndef _SMC911X_H_ 26 #define _SMC911X_H_ 27 28 #include <linux/types.h> 29 30 #define DRIVERNAME "smc911x" 31 32 #if defined (CONFIG_SMC911X_32_BIT) && \ 33 defined (CONFIG_SMC911X_16_BIT) 34 #error "SMC911X: Only one of CONFIG_SMC911X_32_BIT and \ 35 CONFIG_SMC911X_16_BIT shall be set" 36 #endif 37 38 #if defined (CONFIG_SMC911X_32_BIT) 39 static inline u32 __smc911x_reg_read(struct eth_device *dev, u32 offset) 40 { 41 return *(volatile u32*)(dev->iobase + offset); 42 } 43 u32 smc911x_reg_read(struct eth_device *dev, u32 offset) 44 __attribute__((weak, alias("__smc911x_reg_read"))); 45 46 static inline void __smc911x_reg_write(struct eth_device *dev, 47 u32 offset, u32 val) 48 { 49 *(volatile u32*)(dev->iobase + offset) = val; 50 } 51 void smc911x_reg_write(struct eth_device *dev, u32 offset, u32 val) 52 __attribute__((weak, alias("__smc911x_reg_write"))); 53 #elif defined (CONFIG_SMC911X_16_BIT) 54 static inline u32 smc911x_reg_read(struct eth_device *dev, u32 offset) 55 { 56 volatile u16 *addr_16 = (u16 *)(dev->iobase + offset); 57 return ((*addr_16 & 0x0000ffff) | (*(addr_16 + 1) << 16)); 58 } 59 static inline void smc911x_reg_write(struct eth_device *dev, 60 u32 offset, u32 val) 61 { 62 *(volatile u16 *)(dev->iobase + offset) = (u16)val; 63 *(volatile u16 *)(dev->iobase + offset + 2) = (u16)(val >> 16); 64 } 65 #else 66 #error "SMC911X: undefined bus width" 67 #endif /* CONFIG_SMC911X_16_BIT */ 68 69 /* Below are the register offsets and bit definitions 70 * of the Lan911x memory space 71 */ 72 #define RX_DATA_FIFO 0x00 73 74 #define TX_DATA_FIFO 0x20 75 #define TX_CMD_A_INT_ON_COMP 0x80000000 76 #define TX_CMD_A_INT_BUF_END_ALGN 0x03000000 77 #define TX_CMD_A_INT_4_BYTE_ALGN 0x00000000 78 #define TX_CMD_A_INT_16_BYTE_ALGN 0x01000000 79 #define TX_CMD_A_INT_32_BYTE_ALGN 0x02000000 80 #define TX_CMD_A_INT_DATA_OFFSET 0x001F0000 81 #define TX_CMD_A_INT_FIRST_SEG 0x00002000 82 #define TX_CMD_A_INT_LAST_SEG 0x00001000 83 #define TX_CMD_A_BUF_SIZE 0x000007FF 84 #define TX_CMD_B_PKT_TAG 0xFFFF0000 85 #define TX_CMD_B_ADD_CRC_DISABLE 0x00002000 86 #define TX_CMD_B_DISABLE_PADDING 0x00001000 87 #define TX_CMD_B_PKT_BYTE_LENGTH 0x000007FF 88 89 #define RX_STATUS_FIFO 0x40 90 #define RX_STS_PKT_LEN 0x3FFF0000 91 #define RX_STS_ES 0x00008000 92 #define RX_STS_BCST 0x00002000 93 #define RX_STS_LEN_ERR 0x00001000 94 #define RX_STS_RUNT_ERR 0x00000800 95 #define RX_STS_MCAST 0x00000400 96 #define RX_STS_TOO_LONG 0x00000080 97 #define RX_STS_COLL 0x00000040 98 #define RX_STS_ETH_TYPE 0x00000020 99 #define RX_STS_WDOG_TMT 0x00000010 100 #define RX_STS_MII_ERR 0x00000008 101 #define RX_STS_DRIBBLING 0x00000004 102 #define RX_STS_CRC_ERR 0x00000002 103 #define RX_STATUS_FIFO_PEEK 0x44 104 #define TX_STATUS_FIFO 0x48 105 #define TX_STS_TAG 0xFFFF0000 106 #define TX_STS_ES 0x00008000 107 #define TX_STS_LOC 0x00000800 108 #define TX_STS_NO_CARR 0x00000400 109 #define TX_STS_LATE_COLL 0x00000200 110 #define TX_STS_MANY_COLL 0x00000100 111 #define TX_STS_COLL_CNT 0x00000078 112 #define TX_STS_MANY_DEFER 0x00000004 113 #define TX_STS_UNDERRUN 0x00000002 114 #define TX_STS_DEFERRED 0x00000001 115 #define TX_STATUS_FIFO_PEEK 0x4C 116 #define ID_REV 0x50 117 #define ID_REV_CHIP_ID 0xFFFF0000 /* RO */ 118 #define ID_REV_REV_ID 0x0000FFFF /* RO */ 119 120 #define INT_CFG 0x54 121 #define INT_CFG_INT_DEAS 0xFF000000 /* R/W */ 122 #define INT_CFG_INT_DEAS_CLR 0x00004000 123 #define INT_CFG_INT_DEAS_STS 0x00002000 124 #define INT_CFG_IRQ_INT 0x00001000 /* RO */ 125 #define INT_CFG_IRQ_EN 0x00000100 /* R/W */ 126 /* R/W Not Affected by SW Reset */ 127 #define INT_CFG_IRQ_POL 0x00000010 128 /* R/W Not Affected by SW Reset */ 129 #define INT_CFG_IRQ_TYPE 0x00000001 130 131 #define INT_STS 0x58 132 #define INT_STS_SW_INT 0x80000000 /* R/WC */ 133 #define INT_STS_TXSTOP_INT 0x02000000 /* R/WC */ 134 #define INT_STS_RXSTOP_INT 0x01000000 /* R/WC */ 135 #define INT_STS_RXDFH_INT 0x00800000 /* R/WC */ 136 #define INT_STS_RXDF_INT 0x00400000 /* R/WC */ 137 #define INT_STS_TX_IOC 0x00200000 /* R/WC */ 138 #define INT_STS_RXD_INT 0x00100000 /* R/WC */ 139 #define INT_STS_GPT_INT 0x00080000 /* R/WC */ 140 #define INT_STS_PHY_INT 0x00040000 /* RO */ 141 #define INT_STS_PME_INT 0x00020000 /* R/WC */ 142 #define INT_STS_TXSO 0x00010000 /* R/WC */ 143 #define INT_STS_RWT 0x00008000 /* R/WC */ 144 #define INT_STS_RXE 0x00004000 /* R/WC */ 145 #define INT_STS_TXE 0x00002000 /* R/WC */ 146 /*#define INT_STS_ERX 0x00001000*/ /* R/WC */ 147 #define INT_STS_TDFU 0x00000800 /* R/WC */ 148 #define INT_STS_TDFO 0x00000400 /* R/WC */ 149 #define INT_STS_TDFA 0x00000200 /* R/WC */ 150 #define INT_STS_TSFF 0x00000100 /* R/WC */ 151 #define INT_STS_TSFL 0x00000080 /* R/WC */ 152 /*#define INT_STS_RXDF 0x00000040*/ /* R/WC */ 153 #define INT_STS_RDFO 0x00000040 /* R/WC */ 154 #define INT_STS_RDFL 0x00000020 /* R/WC */ 155 #define INT_STS_RSFF 0x00000010 /* R/WC */ 156 #define INT_STS_RSFL 0x00000008 /* R/WC */ 157 #define INT_STS_GPIO2_INT 0x00000004 /* R/WC */ 158 #define INT_STS_GPIO1_INT 0x00000002 /* R/WC */ 159 #define INT_STS_GPIO0_INT 0x00000001 /* R/WC */ 160 #define INT_EN 0x5C 161 #define INT_EN_SW_INT_EN 0x80000000 /* R/W */ 162 #define INT_EN_TXSTOP_INT_EN 0x02000000 /* R/W */ 163 #define INT_EN_RXSTOP_INT_EN 0x01000000 /* R/W */ 164 #define INT_EN_RXDFH_INT_EN 0x00800000 /* R/W */ 165 /*#define INT_EN_RXDF_INT_EN 0x00400000*/ /* R/W */ 166 #define INT_EN_TIOC_INT_EN 0x00200000 /* R/W */ 167 #define INT_EN_RXD_INT_EN 0x00100000 /* R/W */ 168 #define INT_EN_GPT_INT_EN 0x00080000 /* R/W */ 169 #define INT_EN_PHY_INT_EN 0x00040000 /* R/W */ 170 #define INT_EN_PME_INT_EN 0x00020000 /* R/W */ 171 #define INT_EN_TXSO_EN 0x00010000 /* R/W */ 172 #define INT_EN_RWT_EN 0x00008000 /* R/W */ 173 #define INT_EN_RXE_EN 0x00004000 /* R/W */ 174 #define INT_EN_TXE_EN 0x00002000 /* R/W */ 175 /*#define INT_EN_ERX_EN 0x00001000*/ /* R/W */ 176 #define INT_EN_TDFU_EN 0x00000800 /* R/W */ 177 #define INT_EN_TDFO_EN 0x00000400 /* R/W */ 178 #define INT_EN_TDFA_EN 0x00000200 /* R/W */ 179 #define INT_EN_TSFF_EN 0x00000100 /* R/W */ 180 #define INT_EN_TSFL_EN 0x00000080 /* R/W */ 181 /*#define INT_EN_RXDF_EN 0x00000040*/ /* R/W */ 182 #define INT_EN_RDFO_EN 0x00000040 /* R/W */ 183 #define INT_EN_RDFL_EN 0x00000020 /* R/W */ 184 #define INT_EN_RSFF_EN 0x00000010 /* R/W */ 185 #define INT_EN_RSFL_EN 0x00000008 /* R/W */ 186 #define INT_EN_GPIO2_INT 0x00000004 /* R/W */ 187 #define INT_EN_GPIO1_INT 0x00000002 /* R/W */ 188 #define INT_EN_GPIO0_INT 0x00000001 /* R/W */ 189 190 #define BYTE_TEST 0x64 191 #define FIFO_INT 0x68 192 #define FIFO_INT_TX_AVAIL_LEVEL 0xFF000000 /* R/W */ 193 #define FIFO_INT_TX_STS_LEVEL 0x00FF0000 /* R/W */ 194 #define FIFO_INT_RX_AVAIL_LEVEL 0x0000FF00 /* R/W */ 195 #define FIFO_INT_RX_STS_LEVEL 0x000000FF /* R/W */ 196 197 #define RX_CFG 0x6C 198 #define RX_CFG_RX_END_ALGN 0xC0000000 /* R/W */ 199 #define RX_CFG_RX_END_ALGN4 0x00000000 /* R/W */ 200 #define RX_CFG_RX_END_ALGN16 0x40000000 /* R/W */ 201 #define RX_CFG_RX_END_ALGN32 0x80000000 /* R/W */ 202 #define RX_CFG_RX_DMA_CNT 0x0FFF0000 /* R/W */ 203 #define RX_CFG_RX_DUMP 0x00008000 /* R/W */ 204 #define RX_CFG_RXDOFF 0x00001F00 /* R/W */ 205 /*#define RX_CFG_RXBAD 0x00000001*/ /* R/W */ 206 207 #define TX_CFG 0x70 208 /*#define TX_CFG_TX_DMA_LVL 0xE0000000*/ /* R/W */ 209 /* R/W Self Clearing */ 210 /*#define TX_CFG_TX_DMA_CNT 0x0FFF0000*/ 211 #define TX_CFG_TXS_DUMP 0x00008000 /* Self Clearing */ 212 #define TX_CFG_TXD_DUMP 0x00004000 /* Self Clearing */ 213 #define TX_CFG_TXSAO 0x00000004 /* R/W */ 214 #define TX_CFG_TX_ON 0x00000002 /* R/W */ 215 #define TX_CFG_STOP_TX 0x00000001 /* Self Clearing */ 216 217 #define HW_CFG 0x74 218 #define HW_CFG_TTM 0x00200000 /* R/W */ 219 #define HW_CFG_SF 0x00100000 /* R/W */ 220 #define HW_CFG_TX_FIF_SZ 0x000F0000 /* R/W */ 221 #define HW_CFG_TR 0x00003000 /* R/W */ 222 #define HW_CFG_PHY_CLK_SEL 0x00000060 /* R/W */ 223 #define HW_CFG_PHY_CLK_SEL_INT_PHY 0x00000000 /* R/W */ 224 #define HW_CFG_PHY_CLK_SEL_EXT_PHY 0x00000020 /* R/W */ 225 #define HW_CFG_PHY_CLK_SEL_CLK_DIS 0x00000040 /* R/W */ 226 #define HW_CFG_SMI_SEL 0x00000010 /* R/W */ 227 #define HW_CFG_EXT_PHY_DET 0x00000008 /* RO */ 228 #define HW_CFG_EXT_PHY_EN 0x00000004 /* R/W */ 229 #define HW_CFG_32_16_BIT_MODE 0x00000004 /* RO */ 230 #define HW_CFG_SRST_TO 0x00000002 /* RO */ 231 #define HW_CFG_SRST 0x00000001 /* Self Clearing */ 232 233 #define RX_DP_CTRL 0x78 234 #define RX_DP_CTRL_RX_FFWD 0x80000000 /* R/W */ 235 #define RX_DP_CTRL_FFWD_BUSY 0x80000000 /* RO */ 236 237 #define RX_FIFO_INF 0x7C 238 #define RX_FIFO_INF_RXSUSED 0x00FF0000 /* RO */ 239 #define RX_FIFO_INF_RXDUSED 0x0000FFFF /* RO */ 240 241 #define TX_FIFO_INF 0x80 242 #define TX_FIFO_INF_TSUSED 0x00FF0000 /* RO */ 243 #define TX_FIFO_INF_TDFREE 0x0000FFFF /* RO */ 244 245 #define PMT_CTRL 0x84 246 #define PMT_CTRL_PM_MODE 0x00003000 /* Self Clearing */ 247 #define PMT_CTRL_PHY_RST 0x00000400 /* Self Clearing */ 248 #define PMT_CTRL_WOL_EN 0x00000200 /* R/W */ 249 #define PMT_CTRL_ED_EN 0x00000100 /* R/W */ 250 /* R/W Not Affected by SW Reset */ 251 #define PMT_CTRL_PME_TYPE 0x00000040 252 #define PMT_CTRL_WUPS 0x00000030 /* R/WC */ 253 #define PMT_CTRL_WUPS_NOWAKE 0x00000000 /* R/WC */ 254 #define PMT_CTRL_WUPS_ED 0x00000010 /* R/WC */ 255 #define PMT_CTRL_WUPS_WOL 0x00000020 /* R/WC */ 256 #define PMT_CTRL_WUPS_MULTI 0x00000030 /* R/WC */ 257 #define PMT_CTRL_PME_IND 0x00000008 /* R/W */ 258 #define PMT_CTRL_PME_POL 0x00000004 /* R/W */ 259 /* R/W Not Affected by SW Reset */ 260 #define PMT_CTRL_PME_EN 0x00000002 261 #define PMT_CTRL_READY 0x00000001 /* RO */ 262 263 #define GPIO_CFG 0x88 264 #define GPIO_CFG_LED3_EN 0x40000000 /* R/W */ 265 #define GPIO_CFG_LED2_EN 0x20000000 /* R/W */ 266 #define GPIO_CFG_LED1_EN 0x10000000 /* R/W */ 267 #define GPIO_CFG_GPIO2_INT_POL 0x04000000 /* R/W */ 268 #define GPIO_CFG_GPIO1_INT_POL 0x02000000 /* R/W */ 269 #define GPIO_CFG_GPIO0_INT_POL 0x01000000 /* R/W */ 270 #define GPIO_CFG_EEPR_EN 0x00700000 /* R/W */ 271 #define GPIO_CFG_GPIOBUF2 0x00040000 /* R/W */ 272 #define GPIO_CFG_GPIOBUF1 0x00020000 /* R/W */ 273 #define GPIO_CFG_GPIOBUF0 0x00010000 /* R/W */ 274 #define GPIO_CFG_GPIODIR2 0x00000400 /* R/W */ 275 #define GPIO_CFG_GPIODIR1 0x00000200 /* R/W */ 276 #define GPIO_CFG_GPIODIR0 0x00000100 /* R/W */ 277 #define GPIO_CFG_GPIOD4 0x00000010 /* R/W */ 278 #define GPIO_CFG_GPIOD3 0x00000008 /* R/W */ 279 #define GPIO_CFG_GPIOD2 0x00000004 /* R/W */ 280 #define GPIO_CFG_GPIOD1 0x00000002 /* R/W */ 281 #define GPIO_CFG_GPIOD0 0x00000001 /* R/W */ 282 283 #define GPT_CFG 0x8C 284 #define GPT_CFG_TIMER_EN 0x20000000 /* R/W */ 285 #define GPT_CFG_GPT_LOAD 0x0000FFFF /* R/W */ 286 287 #define GPT_CNT 0x90 288 #define GPT_CNT_GPT_CNT 0x0000FFFF /* RO */ 289 290 #define ENDIAN 0x98 291 #define FREE_RUN 0x9C 292 #define RX_DROP 0xA0 293 #define MAC_CSR_CMD 0xA4 294 #define MAC_CSR_CMD_CSR_BUSY 0x80000000 /* Self Clearing */ 295 #define MAC_CSR_CMD_R_NOT_W 0x40000000 /* R/W */ 296 #define MAC_CSR_CMD_CSR_ADDR 0x000000FF /* R/W */ 297 298 #define MAC_CSR_DATA 0xA8 299 #define AFC_CFG 0xAC 300 #define AFC_CFG_AFC_HI 0x00FF0000 /* R/W */ 301 #define AFC_CFG_AFC_LO 0x0000FF00 /* R/W */ 302 #define AFC_CFG_BACK_DUR 0x000000F0 /* R/W */ 303 #define AFC_CFG_FCMULT 0x00000008 /* R/W */ 304 #define AFC_CFG_FCBRD 0x00000004 /* R/W */ 305 #define AFC_CFG_FCADD 0x00000002 /* R/W */ 306 #define AFC_CFG_FCANY 0x00000001 /* R/W */ 307 308 #define E2P_CMD 0xB0 309 #define E2P_CMD_EPC_BUSY 0x80000000 /* Self Clearing */ 310 #define E2P_CMD_EPC_CMD 0x70000000 /* R/W */ 311 #define E2P_CMD_EPC_CMD_READ 0x00000000 /* R/W */ 312 #define E2P_CMD_EPC_CMD_EWDS 0x10000000 /* R/W */ 313 #define E2P_CMD_EPC_CMD_EWEN 0x20000000 /* R/W */ 314 #define E2P_CMD_EPC_CMD_WRITE 0x30000000 /* R/W */ 315 #define E2P_CMD_EPC_CMD_WRAL 0x40000000 /* R/W */ 316 #define E2P_CMD_EPC_CMD_ERASE 0x50000000 /* R/W */ 317 #define E2P_CMD_EPC_CMD_ERAL 0x60000000 /* R/W */ 318 #define E2P_CMD_EPC_CMD_RELOAD 0x70000000 /* R/W */ 319 #define E2P_CMD_EPC_TIMEOUT 0x00000200 /* RO */ 320 #define E2P_CMD_MAC_ADDR_LOADED 0x00000100 /* RO */ 321 #define E2P_CMD_EPC_ADDR 0x000000FF /* R/W */ 322 323 #define E2P_DATA 0xB4 324 #define E2P_DATA_EEPROM_DATA 0x000000FF /* R/W */ 325 /* end of LAN register offsets and bit definitions */ 326 327 /* MAC Control and Status registers */ 328 #define MAC_CR 0x01 /* R/W */ 329 330 /* MAC_CR - MAC Control Register */ 331 #define MAC_CR_RXALL 0x80000000 332 /* TODO: delete this bit? It is not described in the data sheet. */ 333 #define MAC_CR_HBDIS 0x10000000 334 #define MAC_CR_RCVOWN 0x00800000 335 #define MAC_CR_LOOPBK 0x00200000 336 #define MAC_CR_FDPX 0x00100000 337 #define MAC_CR_MCPAS 0x00080000 338 #define MAC_CR_PRMS 0x00040000 339 #define MAC_CR_INVFILT 0x00020000 340 #define MAC_CR_PASSBAD 0x00010000 341 #define MAC_CR_HFILT 0x00008000 342 #define MAC_CR_HPFILT 0x00002000 343 #define MAC_CR_LCOLL 0x00001000 344 #define MAC_CR_BCAST 0x00000800 345 #define MAC_CR_DISRTY 0x00000400 346 #define MAC_CR_PADSTR 0x00000100 347 #define MAC_CR_BOLMT_MASK 0x000000C0 348 #define MAC_CR_DFCHK 0x00000020 349 #define MAC_CR_TXEN 0x00000008 350 #define MAC_CR_RXEN 0x00000004 351 352 #define ADDRH 0x02 /* R/W mask 0x0000FFFFUL */ 353 #define ADDRL 0x03 /* R/W mask 0xFFFFFFFFUL */ 354 #define HASHH 0x04 /* R/W */ 355 #define HASHL 0x05 /* R/W */ 356 357 #define MII_ACC 0x06 /* R/W */ 358 #define MII_ACC_PHY_ADDR 0x0000F800 359 #define MII_ACC_MIIRINDA 0x000007C0 360 #define MII_ACC_MII_WRITE 0x00000002 361 #define MII_ACC_MII_BUSY 0x00000001 362 363 #define MII_DATA 0x07 /* R/W mask 0x0000FFFFUL */ 364 365 #define FLOW 0x08 /* R/W */ 366 #define FLOW_FCPT 0xFFFF0000 367 #define FLOW_FCPASS 0x00000004 368 #define FLOW_FCEN 0x00000002 369 #define FLOW_FCBSY 0x00000001 370 371 #define VLAN1 0x09 /* R/W mask 0x0000FFFFUL */ 372 #define VLAN1_VTI1 0x0000ffff 373 374 #define VLAN2 0x0A /* R/W mask 0x0000FFFFUL */ 375 #define VLAN2_VTI2 0x0000ffff 376 377 #define WUFF 0x0B /* WO */ 378 379 #define WUCSR 0x0C /* R/W */ 380 #define WUCSR_GUE 0x00000200 381 #define WUCSR_WUFR 0x00000040 382 #define WUCSR_MPR 0x00000020 383 #define WUCSR_WAKE_EN 0x00000004 384 #define WUCSR_MPEN 0x00000002 385 386 /* Chip ID values */ 387 #define CHIP_9115 0x115 388 #define CHIP_9116 0x116 389 #define CHIP_9117 0x117 390 #define CHIP_9118 0x118 391 #define CHIP_9211 0x9211 392 #define CHIP_9215 0x115a 393 #define CHIP_9216 0x116a 394 #define CHIP_9217 0x117a 395 #define CHIP_9218 0x118a 396 #define CHIP_9220 0x9220 397 #define CHIP_9221 0x9221 398 399 struct chip_id { 400 u16 id; 401 char *name; 402 }; 403 404 static const struct chip_id chip_ids[] = { 405 { CHIP_9115, "LAN9115" }, 406 { CHIP_9116, "LAN9116" }, 407 { CHIP_9117, "LAN9117" }, 408 { CHIP_9118, "LAN9118" }, 409 { CHIP_9211, "LAN9211" }, 410 { CHIP_9215, "LAN9215" }, 411 { CHIP_9216, "LAN9216" }, 412 { CHIP_9217, "LAN9217" }, 413 { CHIP_9218, "LAN9218" }, 414 { CHIP_9220, "LAN9220" }, 415 { CHIP_9221, "LAN9221" }, 416 { 0, NULL }, 417 }; 418 419 static u32 smc911x_get_mac_csr(struct eth_device *dev, u8 reg) 420 { 421 while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) 422 ; 423 smc911x_reg_write(dev, MAC_CSR_CMD, 424 MAC_CSR_CMD_CSR_BUSY | MAC_CSR_CMD_R_NOT_W | reg); 425 while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) 426 ; 427 428 return smc911x_reg_read(dev, MAC_CSR_DATA); 429 } 430 431 static void smc911x_set_mac_csr(struct eth_device *dev, u8 reg, u32 data) 432 { 433 while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) 434 ; 435 smc911x_reg_write(dev, MAC_CSR_DATA, data); 436 smc911x_reg_write(dev, MAC_CSR_CMD, MAC_CSR_CMD_CSR_BUSY | reg); 437 while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) 438 ; 439 } 440 441 static int smc911x_detect_chip(struct eth_device *dev) 442 { 443 unsigned long val, i; 444 445 val = smc911x_reg_read(dev, BYTE_TEST); 446 if (val == 0xffffffff) { 447 /* Special case -- no chip present */ 448 return -1; 449 } else if (val != 0x87654321) { 450 printf(DRIVERNAME ": Invalid chip endian 0x%08lx\n", val); 451 return -1; 452 } 453 454 val = smc911x_reg_read(dev, ID_REV) >> 16; 455 for (i = 0; chip_ids[i].id != 0; i++) { 456 if (chip_ids[i].id == val) break; 457 } 458 if (!chip_ids[i].id) { 459 printf(DRIVERNAME ": Unknown chip ID %04lx\n", val); 460 return -1; 461 } 462 463 dev->priv = (void *)&chip_ids[i]; 464 465 return 0; 466 } 467 468 static void smc911x_reset(struct eth_device *dev) 469 { 470 int timeout; 471 472 /* Take out of PM setting first */ 473 if (smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY) { 474 /* Write to the bytetest will take out of powerdown */ 475 smc911x_reg_write(dev, BYTE_TEST, 0x0); 476 477 timeout = 10; 478 479 while (timeout-- && 480 !(smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY)) 481 udelay(10); 482 if (!timeout) { 483 printf(DRIVERNAME 484 ": timeout waiting for PM restore\n"); 485 return; 486 } 487 } 488 489 /* Disable interrupts */ 490 smc911x_reg_write(dev, INT_EN, 0); 491 492 smc911x_reg_write(dev, HW_CFG, HW_CFG_SRST); 493 494 timeout = 1000; 495 while (timeout-- && smc911x_reg_read(dev, E2P_CMD) & E2P_CMD_EPC_BUSY) 496 udelay(10); 497 498 if (!timeout) { 499 printf(DRIVERNAME ": reset timeout\n"); 500 return; 501 } 502 503 /* Reset the FIFO level and flow control settings */ 504 smc911x_set_mac_csr(dev, FLOW, FLOW_FCPT | FLOW_FCEN); 505 smc911x_reg_write(dev, AFC_CFG, 0x0050287F); 506 507 /* Set to LED outputs */ 508 smc911x_reg_write(dev, GPIO_CFG, 0x70070000); 509 } 510 511 #endif 512