wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | Etherboot - BOOTP/TFTP Bootstrap Program |
| 3 | Skeleton NIC driver for Etherboot |
| 4 | ***************************************************************************/ |
| 5 | |
| 6 | /* |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License as |
| 9 | * published by the Free Software Foundation; either version 2, or (at |
| 10 | * your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | /* |
| 14 | * This file is a modified version from the Galileo polled mode |
| 15 | * network driver for the ethernet contained within the GT64260 |
| 16 | * chip. It has been modified to fit into the U-Boot framework, from |
| 17 | * the original (etherboot) setup. Also, additional cleanup and features |
| 18 | * were added. |
| 19 | * |
| 20 | * - Josh Huber <huber@mclx.com> |
| 21 | */ |
| 22 | |
| 23 | #include <common.h> |
| 24 | #include <malloc.h> |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 25 | #include <galileo/gt64260R.h> |
| 26 | #include <galileo/core.h> |
| 27 | #include <asm/cache.h> |
| 28 | #include <miiphy.h> |
| 29 | #include <net.h> |
| 30 | |
| 31 | #include "eth.h" |
| 32 | #include "eth_addrtbl.h" |
| 33 | |
Jon Loeliger | 4ed9ed6 | 2007-07-09 18:24:55 -0500 | [diff] [blame] | 34 | #if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 35 | |
| 36 | #define GT6426x_ETH_BUF_SIZE 1536 |
| 37 | |
| 38 | /* if you like verbose output, turn this on! */ |
| 39 | #undef DEBUG |
| 40 | |
| 41 | /* Restart autoneg if we detect link is up on phy init. */ |
| 42 | |
| 43 | /* |
| 44 | * The GT doc's say that after Rst is deasserted, and the PHY |
| 45 | * reports autoneg complete, it runs through its autoneg |
| 46 | * procedures. This doesn't seem to be the case for MII |
| 47 | * PHY's. To work around this check for link up && autoneg |
| 48 | * complete when initilizing the port. If they are both set, |
| 49 | * then restart PHY autoneg. Of course, it may be something |
| 50 | * completly different. |
| 51 | */ |
| 52 | #ifdef CONFIG_ETHER_PORT_MII |
| 53 | # define RESTART_AUTONEG |
| 54 | #endif |
| 55 | |
| 56 | /* do this if you dont want to use snooping */ |
| 57 | #define USE_SOFTWARE_CACHE_MANAGEMENT |
| 58 | |
| 59 | #ifdef USE_SOFTWARE_CACHE_MANAGEMENT |
| 60 | #define FLUSH_DCACHE(a,b) if(dcache_status()){clean_dcache_range((u32)(a),(u32)(b));} |
| 61 | #define FLUSH_AND_INVALIDATE_DCACHE(a,b) if(dcache_status()){flush_dcache_range((u32)(a),(u32)(b));} |
| 62 | #define INVALIDATE_DCACHE(a,b) if(dcache_status()){invalidate_dcache_range((u32)(a),(u32)(b));} |
| 63 | #else |
| 64 | /* bummer - w/o flush, nothing works, even with snooping - FIXME */ |
| 65 | /* #define FLUSH_DCACHE(a,b) */ |
| 66 | #define FLUSH_DCACHE(a,b) if(dcache_status()){clean_dcache_range((u32)(a),(u32)(b));} |
| 67 | #define FLUSH_AND_INVALIDATE_DCACHE(a,b) |
| 68 | #define INVALIDATE_DCACHE(a,b) |
| 69 | #endif |
| 70 | struct eth_dev_s { |
| 71 | eth0_tx_desc_single *eth_tx_desc; |
| 72 | eth0_rx_desc_single *eth_rx_desc; |
| 73 | char *eth_tx_buffer; |
| 74 | char *eth_rx_buffer[NR]; |
| 75 | int tdn, rdn; |
| 76 | int dev; |
| 77 | unsigned int reg_base; |
| 78 | }; |
| 79 | |
| 80 | |
| 81 | #ifdef CONFIG_INTEL_LXT97X |
| 82 | /* for intel LXT972 */ |
| 83 | static const char ether_port_phy_addr[3]={0,1,2}; |
| 84 | #else |
| 85 | static const char ether_port_phy_addr[3]={4,5,6}; |
| 86 | #endif |
| 87 | |
Marian Balakowicz | aab8c49 | 2005-10-28 22:30:33 +0200 | [diff] [blame] | 88 | /* MII PHY access routines are common for all i/f, use gal_ent0 */ |
| 89 | #define GT6426x_MII_DEVNAME "gal_enet0" |
| 90 | |
| 91 | int gt6426x_miiphy_read(char *devname, unsigned char phy, |
| 92 | unsigned char reg, unsigned short *val); |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 93 | |
| 94 | static inline unsigned short |
| 95 | miiphy_read_ret(unsigned short phy, unsigned short reg) |
| 96 | { |
| 97 | unsigned short val; |
Marian Balakowicz | aab8c49 | 2005-10-28 22:30:33 +0200 | [diff] [blame] | 98 | gt6426x_miiphy_read(GT6426x_MII_DEVNAME,phy,reg,&val); |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 99 | return val; |
| 100 | } |
| 101 | |
| 102 | |
| 103 | /************************************************************************** |
| 104 | RESET - Reset adapter |
| 105 | ***************************************************************************/ |
| 106 | void |
| 107 | gt6426x_eth_reset(void *v) |
| 108 | { |
| 109 | /* we should do something here... |
| 110 | struct eth_device *wp = (struct eth_device *)v; |
| 111 | struct eth_dev_s *p = wp->priv; |
| 112 | */ |
| 113 | |
| 114 | printf ("RESET\n"); |
| 115 | /* put the card in its initial state */ |
| 116 | } |
| 117 | |
| 118 | static void gt6426x_handle_SMI(struct eth_dev_s *p, unsigned int icr) |
| 119 | { |
| 120 | #ifdef DEBUG |
| 121 | printf("SMI interrupt: "); |
| 122 | |
| 123 | if(icr&0x20000000) { |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 124 | printf("SMI done\n"); |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 125 | } |
| 126 | #endif |
| 127 | |
| 128 | if(icr&0x10000000) { |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 129 | unsigned int psr; |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 130 | psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + p->reg_base); |
| 131 | #ifdef DEBUG |
| 132 | printf("PHY state change:\n" |
| 133 | " GT:%s:%s:%s:%s\n", |
| 134 | psr&1?"100":" 10", |
| 135 | psr&8?" Link":"nLink", |
| 136 | psr&2?"FD":"HD", |
| 137 | psr&4?" FC":"nFC"); |
| 138 | |
| 139 | #ifdef CONFIG_INTEL_LXT97X /* non-standard mii reg (intel lxt972a) */ |
| 140 | { |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 141 | unsigned short mii_11; |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 142 | mii_11=miiphy_read_ret(ether_port_phy_addr[p->dev],0x11); |
| 143 | |
| 144 | printf(" mii:%s:%s:%s:%s %s:%s %s\n", |
| 145 | mii_11&(1<<14)?"100":" 10", |
| 146 | mii_11&(1<<10)?" Link":"nLink", |
| 147 | mii_11&(1<<9)?"FD":"HD", |
| 148 | mii_11&(1<<4)?" FC":"nFC", |
| 149 | |
| 150 | mii_11&(1<<7)?"ANc":"ANnc", |
| 151 | mii_11&(1<<8)?"AN":"Manual", |
| 152 | "" |
| 153 | ); |
| 154 | } |
| 155 | #endif /* CONFIG_INTEL_LXT97X */ |
| 156 | #endif /* DEBUG */ |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | static int |
| 161 | gt6426x_eth_receive(struct eth_dev_s *p,unsigned int icr) |
| 162 | { |
| 163 | int eth_len=0; |
| 164 | char *eth_data; |
| 165 | |
| 166 | eth0_rx_desc_single *rx=&p->eth_rx_desc[(p->rdn)]; |
| 167 | |
| 168 | INVALIDATE_DCACHE((unsigned int)rx,(unsigned int)(rx+1)); |
| 169 | |
| 170 | if (rx->command_status & 0x80000000) { |
| 171 | return 0; /* No packet received */ |
| 172 | } |
| 173 | |
| 174 | eth_len = (unsigned int) |
| 175 | (rx->buff_size_byte_count) & 0x0000ffff; |
| 176 | eth_data = (char *) p->eth_rx_buffer[p->rdn]; |
| 177 | |
| 178 | #ifdef DEBUG |
| 179 | if (eth_len) { |
| 180 | printf ("%s: Recived %d byte Packet @ 0x%p\n", |
| 181 | __FUNCTION__, eth_len, eth_data); |
| 182 | } |
| 183 | #endif |
| 184 | /* |
| 185 | * packet is now in: |
| 186 | * eth0_rx_buffer[RDN_ETH0]; |
| 187 | */ |
| 188 | |
| 189 | /* let the upper layer handle the packet */ |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 190 | NetReceive ((uchar *)eth_data, eth_len); |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 191 | |
| 192 | rx->buff_size_byte_count = GT6426x_ETH_BUF_SIZE<<16; |
| 193 | |
| 194 | |
| 195 | /* GT96100 Owner */ |
| 196 | rx->command_status = 0x80000000; |
| 197 | |
| 198 | FLUSH_DCACHE((unsigned int)rx,(unsigned int)(rx+1)); |
| 199 | |
| 200 | p->rdn ++; |
| 201 | if (p->rdn == NR) {p->rdn = 0;} |
| 202 | |
| 203 | sync(); |
| 204 | |
| 205 | /* Start Rx*/ |
| 206 | GT_REG_WRITE (ETHERNET0_SDMA_COMMAND_REGISTER + p->reg_base, 0x00000080); |
| 207 | |
| 208 | #ifdef DEBUG |
| 209 | { |
| 210 | int i; |
| 211 | for (i=0;i<12;i++) { |
| 212 | printf(" %02x", eth_data[i]); |
| 213 | } |
| 214 | } |
| 215 | printf(": %d bytes\n", eth_len); |
| 216 | #endif |
| 217 | INVALIDATE_DCACHE((unsigned int)eth_data, |
| 218 | (unsigned int)eth_data+eth_len); |
| 219 | return eth_len; |
| 220 | } |
| 221 | |
| 222 | /************************************************************************** |
| 223 | POLL - look for an rx frame, handle other conditions |
| 224 | ***************************************************************************/ |
| 225 | int |
| 226 | gt6426x_eth_poll(void *v) |
| 227 | { |
| 228 | struct eth_device *wp = (struct eth_device *)v; |
| 229 | struct eth_dev_s *p = wp->priv; |
| 230 | unsigned int icr=GTREGREAD(ETHERNET0_INTERRUPT_CAUSE_REGISTER + p->reg_base); |
| 231 | |
| 232 | if(icr) { |
| 233 | GT_REG_WRITE(ETHERNET0_INTERRUPT_CAUSE_REGISTER +p->reg_base, 0); |
| 234 | #ifdef DEBUG |
| 235 | printf("poll got ICR %08x\n", icr); |
| 236 | #endif |
| 237 | /* SMI done or PHY state change*/ |
| 238 | if(icr&0x30000000) gt6426x_handle_SMI(p, icr); |
| 239 | } |
| 240 | /* always process. We aren't using RX interrupts */ |
| 241 | return gt6426x_eth_receive(p, icr); |
| 242 | } |
| 243 | |
| 244 | /************************************************************************** |
| 245 | TRANSMIT - Transmit a frame |
| 246 | ***************************************************************************/ |
| 247 | int |
| 248 | gt6426x_eth_transmit(void *v, volatile char *p, unsigned int s) |
| 249 | { |
| 250 | struct eth_device *wp = (struct eth_device *)v; |
| 251 | struct eth_dev_s *dev = (struct eth_dev_s *)wp->priv; |
| 252 | #ifdef DEBUG |
| 253 | unsigned int old_command_stat,old_psr; |
| 254 | #endif |
| 255 | eth0_tx_desc_single *tx=&dev->eth_tx_desc[dev->tdn]; |
| 256 | |
| 257 | /* wait for tx to be ready */ |
| 258 | INVALIDATE_DCACHE((unsigned int)tx,(unsigned int)(tx+1)); |
| 259 | while (tx->command_status & 0x80000000) { |
| 260 | int i; |
| 261 | for(i=0;i<1000;i++); |
| 262 | INVALIDATE_DCACHE((unsigned int)tx,(unsigned int)(tx+1)); |
| 263 | } |
| 264 | |
| 265 | GT_REG_WRITE (ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 + dev->reg_base, |
| 266 | (unsigned int)tx); |
| 267 | |
| 268 | #ifdef DEBUG |
| 269 | printf("copying to tx_buffer [%p], length %x, desc = %p\n", |
| 270 | dev->eth_tx_buffer, s, dev->eth_tx_desc); |
| 271 | #endif |
| 272 | memcpy(dev->eth_tx_buffer, (char *) p, s); |
| 273 | |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 274 | tx->buff_pointer = (uchar *)dev->eth_tx_buffer; |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 275 | tx->bytecount_reserved = ((__u16)s) << 16; |
| 276 | |
| 277 | /* 31 - own |
| 278 | * 22 - gencrc |
| 279 | * 18:16 - pad, last, first */ |
| 280 | tx->command_status = (1<<31) | (1<<22) | (7<<16); |
| 281 | #if 0 |
| 282 | /* FEr #18 */ |
| 283 | tx->next_desc = NULL; |
| 284 | #else |
| 285 | tx->next_desc = |
| 286 | (struct eth0_tx_desc_struct *) |
| 287 | &dev->eth_tx_desc[(dev->tdn+1)%NT].bytecount_reserved; |
| 288 | |
| 289 | /* cpu owned */ |
| 290 | dev->eth_tx_desc[(dev->tdn+1)%NT].command_status = (7<<16); /* pad, last, first */ |
| 291 | #endif |
| 292 | |
| 293 | #ifdef DEBUG |
| 294 | old_command_stat=tx->command_status, |
| 295 | old_psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + dev->reg_base); |
| 296 | #endif |
| 297 | |
| 298 | FLUSH_DCACHE((unsigned int)tx, |
| 299 | (unsigned int)&dev->eth_tx_desc[(dev->tdn+2)%NT]); |
| 300 | |
| 301 | FLUSH_DCACHE((unsigned int)dev->eth_tx_buffer,(unsigned int)dev->eth_tx_buffer+s); |
| 302 | |
| 303 | GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + dev->reg_base, 0x01000000); |
| 304 | |
| 305 | #ifdef DEBUG |
| 306 | { |
| 307 | unsigned int command_stat=0; |
| 308 | printf("cmd_stat: %08x PSR: %08x\n", old_command_stat, old_psr); |
| 309 | /* wait for tx to be ready */ |
| 310 | do { |
| 311 | unsigned int psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + dev->reg_base); |
| 312 | command_stat=tx->command_status; |
| 313 | if(command_stat!=old_command_stat || psr !=old_psr) { |
| 314 | printf("cmd_stat: %08x PSR: %08x\n", command_stat, psr); |
| 315 | old_command_stat = command_stat; |
| 316 | old_psr = psr; |
| 317 | } |
| 318 | /* gt6426x_eth0_poll(); */ |
| 319 | } while (command_stat & 0x80000000); |
| 320 | |
| 321 | printf("sent %d byte frame\n", s); |
| 322 | |
| 323 | if((command_stat & (3<<15)) == 3) { |
| 324 | printf("frame had error (stat=%08x)\n", command_stat); |
| 325 | } |
| 326 | } |
| 327 | #endif |
| 328 | return 0; |
| 329 | } |
| 330 | |
| 331 | /************************************************************************** |
| 332 | DISABLE - Turn off ethernet interface |
| 333 | ***************************************************************************/ |
| 334 | void |
| 335 | gt6426x_eth_disable(void *v) |
| 336 | { |
| 337 | struct eth_device *wp = (struct eth_device *)v; |
| 338 | struct eth_dev_s *p = (struct eth_dev_s *)wp->priv; |
| 339 | |
| 340 | GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + p->reg_base, 0x80008000); |
| 341 | } |
| 342 | |
| 343 | /************************************************************************** |
| 344 | MII utilities - write: write to an MII register via SMI |
| 345 | ***************************************************************************/ |
| 346 | int |
Marian Balakowicz | aab8c49 | 2005-10-28 22:30:33 +0200 | [diff] [blame] | 347 | gt6426x_miiphy_write(char *devname, unsigned char phy, |
| 348 | unsigned char reg, unsigned short data) |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 349 | { |
| 350 | unsigned int temp= (reg<<21) | (phy<<16) | data; |
| 351 | |
| 352 | while(GTREGREAD(ETHERNET_SMI_REGISTER) & (1<<28)); /* wait for !Busy */ |
| 353 | |
| 354 | GT_REG_WRITE(ETHERNET_SMI_REGISTER, temp); |
| 355 | return 0; |
| 356 | } |
| 357 | |
| 358 | /************************************************************************** |
| 359 | MII utilities - read: read from an MII register via SMI |
| 360 | ***************************************************************************/ |
| 361 | int |
Marian Balakowicz | aab8c49 | 2005-10-28 22:30:33 +0200 | [diff] [blame] | 362 | gt6426x_miiphy_read(char *devname, unsigned char phy, |
| 363 | unsigned char reg, unsigned short *val) |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 364 | { |
| 365 | unsigned int temp= (reg<<21) | (phy<<16) | 1<<26; |
| 366 | |
| 367 | while(GTREGREAD(ETHERNET_SMI_REGISTER) & (1<<28)); /* wait for !Busy */ |
| 368 | |
| 369 | GT_REG_WRITE(ETHERNET_SMI_REGISTER, temp); |
| 370 | |
| 371 | while(1) { |
| 372 | temp=GTREGREAD(ETHERNET_SMI_REGISTER); |
| 373 | if(temp & (1<<27)) break; /* wait for ReadValid */ |
| 374 | } |
| 375 | *val = temp & 0xffff; |
| 376 | |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | #ifdef DEBUG |
| 381 | /************************************************************************** |
| 382 | MII utilities - dump mii registers |
| 383 | ***************************************************************************/ |
| 384 | static void |
| 385 | gt6426x_dump_mii(bd_t *bis, unsigned short phy) |
| 386 | { |
| 387 | printf("mii reg 0 - 3: %04x %04x %04x %04x\n", |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 388 | miiphy_read_ret(phy, 0x0), |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 389 | miiphy_read_ret(phy, 0x1), |
| 390 | miiphy_read_ret(phy, 0x2), |
| 391 | miiphy_read_ret(phy, 0x3) |
| 392 | ); |
| 393 | printf(" 4 - 7: %04x %04x %04x %04x\n", |
| 394 | miiphy_read_ret(phy, 0x4), |
| 395 | miiphy_read_ret(phy, 0x5), |
| 396 | miiphy_read_ret(phy, 0x6), |
| 397 | miiphy_read_ret(phy, 0x7) |
| 398 | ); |
| 399 | printf(" 8: %04x\n", |
| 400 | miiphy_read_ret(phy, 0x8) |
| 401 | ); |
| 402 | printf(" 16-19: %04x %04x %04x %04x\n", |
| 403 | miiphy_read_ret(phy, 0x10), |
| 404 | miiphy_read_ret(phy, 0x11), |
| 405 | miiphy_read_ret(phy, 0x12), |
| 406 | miiphy_read_ret(phy, 0x13) |
| 407 | ); |
| 408 | printf(" 20,30: %04x %04x\n", |
| 409 | miiphy_read_ret(phy, 20), |
| 410 | miiphy_read_ret(phy, 30) |
| 411 | ); |
| 412 | } |
| 413 | #endif |
| 414 | |
| 415 | #ifdef RESTART_AUTONEG |
| 416 | |
| 417 | /* If link is up && autoneg compleate, and if |
| 418 | * GT and PHY disagree about link capabilitys, |
| 419 | * restart autoneg - something screwy with FD/HD |
| 420 | * unless we do this. */ |
| 421 | static void |
| 422 | check_phy_state(struct eth_dev_s *p) |
| 423 | { |
| 424 | int bmsr = miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_BMSR); |
| 425 | int psr = GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + p->reg_base); |
| 426 | |
| 427 | if ((psr & 1<<3) && (bmsr & PHY_BMSR_LS)) { |
| 428 | int nego = miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_ANAR) & |
| 429 | miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_ANLPAR); |
| 430 | int want; |
| 431 | |
| 432 | if (nego & PHY_ANLPAR_TXFD) { |
| 433 | want = 0x3; |
| 434 | printf("MII: 100Base-TX, Full Duplex\n"); |
| 435 | } else if (nego & PHY_ANLPAR_TX) { |
| 436 | want = 0x1; |
| 437 | printf("MII: 100Base-TX, Half Duplex\n"); |
| 438 | } else if (nego & PHY_ANLPAR_10FD) { |
| 439 | want = 0x2; |
| 440 | printf("MII: 10Base-T, Full Duplex\n"); |
| 441 | } else if (nego & PHY_ANLPAR_10) { |
| 442 | want = 0x0; |
| 443 | printf("MII: 10Base-T, Half Duplex\n"); |
| 444 | } else { |
| 445 | printf("MII: Unknown link-foo! %x\n", nego); |
| 446 | return; |
| 447 | } |
| 448 | |
| 449 | if ((psr & 0x3) != want) { |
| 450 | printf("MII: GT thinks %x, PHY thinks %x, restarting autoneg..\n", |
| 451 | psr & 0x3, want); |
Marian Balakowicz | aab8c49 | 2005-10-28 22:30:33 +0200 | [diff] [blame] | 452 | miiphy_write(GT6426x_MII_DEVNAME,ether_port_phy_addr[p->dev],0, |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 453 | miiphy_read_ret(ether_port_phy_addr[p->dev],0) | (1<<9)); |
| 454 | udelay(10000); /* the EVB's GT takes a while to notice phy |
| 455 | went down and up */ |
| 456 | } |
| 457 | } |
| 458 | } |
| 459 | #endif |
| 460 | |
| 461 | /************************************************************************** |
| 462 | PROBE - Look for an adapter, this routine's visible to the outside |
| 463 | ***************************************************************************/ |
| 464 | int |
| 465 | gt6426x_eth_probe(void *v, bd_t *bis) |
| 466 | { |
| 467 | struct eth_device *wp = (struct eth_device *)v; |
| 468 | struct eth_dev_s *p = (struct eth_dev_s *)wp->priv; |
| 469 | int dev = p->dev; |
| 470 | unsigned int reg_base = p->reg_base; |
| 471 | unsigned long temp; |
| 472 | int i; |
| 473 | |
| 474 | if (( dev < 0 ) || ( dev >= GAL_ETH_DEVS )) |
| 475 | { /* This should never happen */ |
| 476 | printf("%s: Invalid device %d\n", __FUNCTION__, dev ); |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | #ifdef DEBUG |
| 481 | printf ("%s: initializing %s\n", __FUNCTION__, wp->name ); |
| 482 | printf ("\nCOMM_CONTROL = %08x , COMM_CONF = %08x\n", |
| 483 | GTREGREAD(COMM_UNIT_ARBITER_CONTROL), |
| 484 | GTREGREAD(COMM_UNIT_ARBITER_CONFIGURATION_REGISTER)); |
| 485 | #endif |
| 486 | |
| 487 | /* clear MIB counters */ |
| 488 | for(i=0;i<255; i++) |
| 489 | temp=GTREGREAD(ETHERNET0_MIB_COUNTER_BASE + reg_base +i); |
| 490 | |
| 491 | #ifdef CONFIG_INTEL_LXT97X |
| 492 | /* for intel LXT972 */ |
| 493 | |
| 494 | /* led 1: 0x1=txact |
| 495 | led 2: 0xc=link/rxact |
| 496 | led 3: 0x2=rxact (N/C) |
| 497 | strch: 0,2=30 ms, enable */ |
Marian Balakowicz | aab8c49 | 2005-10-28 22:30:33 +0200 | [diff] [blame] | 498 | miiphy_write(GT6426x_MII_DEVNAME,ether_port_phy_addr[p->dev], 20, 0x1c22); |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 499 | |
| 500 | /* 2.7ns port rise time */ |
| 501 | /*miiphy_write(ether_port_phy_addr[p->dev], 30, 0x0<<10); */ |
| 502 | #else |
| 503 | /* already set up in mpsc.c */ |
| 504 | /*GT_REG_WRITE(MAIN_ROUTING_REGISTER, 0x7ffe38); / b400 */ |
| 505 | |
| 506 | /* already set up in sdram_init.S... */ |
| 507 | /* MPSC0, MPSC1, RMII */ |
| 508 | /*GT_REG_WRITE(SERIAL_PORT_MULTIPLEX, 0x1102); / f010 */ |
| 509 | #endif |
| 510 | GT_REG_WRITE(ETHERNET_PHY_ADDRESS_REGISTER, |
| 511 | ether_port_phy_addr[0] | |
| 512 | (ether_port_phy_addr[1]<<5) | |
| 513 | (ether_port_phy_addr[2]<<10)); /* 2000 */ |
| 514 | |
| 515 | /* 13:12 - 10: 4x64bit burst (cache line size = 32 bytes) |
| 516 | * 9 - 1: RIFB - interrupt on frame boundaries only |
| 517 | * 6:7 - 00: big endian rx and tx |
| 518 | * 5:2 - 1111: 15 retries */ |
| 519 | GT_REG_WRITE(ETHERNET0_SDMA_CONFIGURATION_REGISTER + reg_base, |
| 520 | (2<<12) | (1<<9) | (0xf<<2) ); /* 2440 */ |
| 521 | |
| 522 | #ifndef USE_SOFTWARE_CACHE_MANAGEMENT |
| 523 | /* enable rx/tx desc/buffer cache snoop */ |
| 524 | GT_REG_READ(ETHERNET_0_ADDRESS_CONTROL_LOW + dev*0x20, |
| 525 | &temp); /* f200 */ |
| 526 | temp|= (1<<6)| (1<<14)| (1<<22)| (1<<30); |
| 527 | GT_REG_WRITE(ETHERNET_0_ADDRESS_CONTROL_LOW + dev*0x20, |
| 528 | temp); |
| 529 | #endif |
| 530 | |
| 531 | /* 31 28 27 24 23 20 19 16 |
| 532 | * 0000 0000 0000 0000 [0004] |
| 533 | * 15 12 11 8 7 4 3 0 |
| 534 | * 1000 1101 0000 0000 [4d00] |
| 535 | * 20 - 0=MII 1=RMII |
| 536 | * 19 - 0=speed autoneg |
| 537 | * 15:14 - framesize 1536 (GT6426x_ETH_BUF_SIZE) |
| 538 | * 11 - no force link pass |
| 539 | * 10 - 1=disable fctl autoneg |
| 540 | * 8 - override prio ?? */ |
| 541 | temp = 0x00004d00; |
| 542 | #ifndef CONFIG_ETHER_PORT_MII |
| 543 | temp |= (1<<20); /* RMII */ |
| 544 | #endif |
| 545 | /* set En */ |
| 546 | GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER + reg_base, |
| 547 | temp); /* 2408 */ |
| 548 | |
| 549 | /* hardcode E1 also? */ |
| 550 | /* -- according to dox, this is safer due to extra pulldowns? */ |
| 551 | if (dev<2) { |
| 552 | GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER + (dev+1) * 0x400, |
| 553 | temp); /* 2408 */ |
| 554 | } |
| 555 | |
| 556 | /* wake up MAC */ /* 2400 */ |
| 557 | GT_REG_READ(ETHERNET0_PORT_CONFIGURATION_REGISTER + reg_base, &temp); |
| 558 | temp |= (1<<7); /* enable port */ |
| 559 | #ifdef CONFIG_GT_USE_MAC_HASH_TABLE |
| 560 | temp |= (1<<12); /* hash size 1/2k */ |
| 561 | #else |
| 562 | temp |= 1; /* promisc */ |
| 563 | #endif |
| 564 | GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_REGISTER + reg_base, temp); |
| 565 | /* 2400 */ |
| 566 | |
| 567 | #ifdef RESTART_AUTONEG |
| 568 | check_phy_state(p); |
| 569 | #endif |
| 570 | |
| 571 | printf("%s: Waiting for link up..\n", wp->name); |
| 572 | temp = 10 * 1000; |
| 573 | /* wait for link back up */ |
| 574 | while(!(GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + reg_base) & 8) |
| 575 | && (--temp > 0)){ |
| 576 | udelay(1000); /* wait 1 ms */ |
| 577 | } |
| 578 | if ( temp == 0) { |
| 579 | printf("%s: Failed!\n", wp->name); |
| 580 | return (0); |
| 581 | } |
| 582 | |
| 583 | printf("%s: OK!\n", wp->name); |
| 584 | |
| 585 | p->tdn = 0; |
| 586 | p->rdn = 0; |
| 587 | p->eth_tx_desc[p->tdn].command_status = 0; |
| 588 | |
| 589 | /* Initialize Rx Side */ |
| 590 | for (temp = 0; temp < NR; temp++) { |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 591 | p->eth_rx_desc[temp].buff_pointer = (uchar *)p->eth_rx_buffer[temp]; |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 592 | p->eth_rx_desc[temp].buff_size_byte_count = GT6426x_ETH_BUF_SIZE<<16; |
| 593 | |
| 594 | /* GT96100 Owner */ |
| 595 | p->eth_rx_desc[temp].command_status = 0x80000000; |
| 596 | p->eth_rx_desc[temp].next_desc = |
| 597 | (struct eth0_rx_desc_struct *) |
| 598 | &p->eth_rx_desc[(temp+1)%NR].buff_size_byte_count; |
| 599 | } |
| 600 | |
| 601 | FLUSH_DCACHE((unsigned int)&p->eth_tx_desc[0], |
| 602 | (unsigned int)&p->eth_tx_desc[NR]); |
| 603 | FLUSH_DCACHE((unsigned int)&p->eth_rx_desc[0], |
| 604 | (unsigned int)&p->eth_rx_desc[NR]); |
| 605 | |
| 606 | GT_REG_WRITE(ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 + reg_base, |
| 607 | (unsigned int) p->eth_tx_desc); |
| 608 | GT_REG_WRITE(ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 + reg_base, |
| 609 | (unsigned int) p->eth_rx_desc); |
| 610 | GT_REG_WRITE(ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 + reg_base, |
| 611 | (unsigned int) p->eth_rx_desc); |
| 612 | |
| 613 | #ifdef DEBUG |
| 614 | printf ("\nRx descriptor pointer is %08x %08x\n", |
| 615 | GTREGREAD(ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 + reg_base), |
| 616 | GTREGREAD(ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 + reg_base)); |
| 617 | printf ("\n\n%08x %08x\n", |
| 618 | (unsigned int)p->eth_rx_desc,p->eth_rx_desc[0].command_status); |
| 619 | |
| 620 | printf ("Descriptor dump:\n"); |
| 621 | printf ("cmd status: %08x\n",p->eth_rx_desc[0].command_status); |
| 622 | printf ("byte_count: %08x\n",p->eth_rx_desc[0].buff_size_byte_count); |
| 623 | printf ("buff_ptr: %08x\n",(unsigned int)p->eth_rx_desc[0].buff_pointer); |
| 624 | printf ("next_desc: %08x\n\n",(unsigned int)p->eth_rx_desc[0].next_desc); |
| 625 | printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x0)); |
| 626 | printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x4)); |
| 627 | printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x8)); |
| 628 | printf ("%08x\n\n", |
| 629 | *(unsigned int *) ((unsigned int)p->eth_rx_desc + 0xc)); |
| 630 | #endif |
| 631 | |
| 632 | #ifdef DEBUG |
| 633 | gt6426x_dump_mii(bis,ether_port_phy_addr[p->dev]); |
| 634 | #endif |
| 635 | |
| 636 | #ifdef CONFIG_GT_USE_MAC_HASH_TABLE |
| 637 | { |
| 638 | unsigned int hashtable_base; |
| 639 | u8 *b = (u8 *)(wp->enetaddr); |
| 640 | u32 macH, macL; |
| 641 | |
| 642 | /* twist the MAC up into the way the discovery wants it */ |
| 643 | macH= (b[0]<<8) | b[1]; |
| 644 | macL= (b[2]<<24) | (b[3]<<16) | (b[4]<<8) | b[5]; |
| 645 | |
| 646 | /* mode 0, size 0x800 */ |
| 647 | hashtable_base =initAddressTable(dev,0,1); |
| 648 | |
| 649 | if(!hashtable_base) { |
| 650 | printf("initAddressTable failed\n"); |
| 651 | return 0; |
| 652 | } |
| 653 | |
| 654 | addAddressTableEntry(dev, macH, macL, 1, 0); |
| 655 | GT_REG_WRITE(ETHERNET0_HASH_TABLE_POINTER_REGISTER + reg_base, |
| 656 | hashtable_base); |
| 657 | } |
| 658 | #endif |
| 659 | |
| 660 | /* Start Rx*/ |
| 661 | GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + reg_base, 0x00000080); |
| 662 | printf("%s: gt6426x eth device %d init success \n", wp->name, dev ); |
| 663 | return 1; |
| 664 | } |
| 665 | |
| 666 | /* enter all the galileo ethernet devs into MULTI-BOOT */ |
| 667 | void |
| 668 | gt6426x_eth_initialize(bd_t *bis) |
| 669 | { |
| 670 | struct eth_device *dev; |
| 671 | struct eth_dev_s *p; |
| 672 | int devnum, x, temp; |
| 673 | char *s, *e, buf[64]; |
| 674 | |
| 675 | #ifdef DEBUG |
| 676 | printf( "\n%s\n", __FUNCTION ); |
| 677 | #endif |
| 678 | |
| 679 | for (devnum = 0; devnum < GAL_ETH_DEVS; devnum++) { |
| 680 | dev = calloc(sizeof(*dev), 1); |
| 681 | if (!dev) { |
| 682 | printf( "%s: gal_enet%d allocation failure, %s\n", |
| 683 | __FUNCTION__, devnum, "eth_device structure"); |
| 684 | return; |
| 685 | } |
| 686 | |
| 687 | /* must be less than NAMESIZE (16) */ |
| 688 | sprintf(dev->name, "gal_enet%d", devnum); |
| 689 | |
| 690 | #ifdef DEBUG |
| 691 | printf( "Initializing %s\n", dev->name ); |
| 692 | #endif |
| 693 | |
| 694 | /* Extract the MAC address from the environment */ |
| 695 | switch (devnum) |
| 696 | { |
| 697 | case 0: s = "ethaddr"; break; |
| 698 | #if (GAL_ETH_DEVS > 1) |
| 699 | case 1: s = "eth1addr"; break; |
| 700 | #endif |
| 701 | #if (GAL_ETH_DEVS > 2) |
| 702 | case 2: s = "eth2addr"; break; |
| 703 | #endif |
| 704 | default: /* this should never happen */ |
| 705 | printf( "%s: Invalid device number %d\n", |
| 706 | __FUNCTION__, devnum ); |
| 707 | return; |
| 708 | } |
| 709 | |
| 710 | temp = getenv_r (s, buf, sizeof(buf)); |
| 711 | s = (temp > 0) ? buf : NULL; |
| 712 | |
| 713 | #ifdef DEBUG |
| 714 | printf ("Setting MAC %d to %s\n", devnum, s ); |
| 715 | #endif |
| 716 | for (x = 0; x < 6; ++x) { |
| 717 | dev->enetaddr[x] = s ? simple_strtoul(s, &e, 16) : 0; |
| 718 | if (s) |
| 719 | s = (*e) ? e+1 : e; |
| 720 | } |
| 721 | |
| 722 | dev->init = (void*)gt6426x_eth_probe; |
| 723 | dev->halt = (void*)gt6426x_eth_reset; |
| 724 | dev->send = (void*)gt6426x_eth_transmit; |
| 725 | dev->recv = (void*)gt6426x_eth_poll; |
| 726 | |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 727 | p = calloc( sizeof(*p), 1 ); |
| 728 | dev->priv = (void*)p; |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 729 | if (!p) |
| 730 | { |
| 731 | printf( "%s: %s allocation failure, %s\n", |
| 732 | __FUNCTION__, dev->name, "Private Device Structure"); |
| 733 | free(dev); |
| 734 | return; |
| 735 | } |
| 736 | |
| 737 | p->dev = devnum; |
| 738 | p->tdn=0; |
| 739 | p->rdn=0; |
| 740 | p->reg_base = devnum * ETHERNET_PORTS_DIFFERENCE_OFFSETS; |
| 741 | |
| 742 | p->eth_tx_desc = |
| 743 | (eth0_tx_desc_single *) |
| 744 | (((unsigned int) malloc(sizeof (eth0_tx_desc_single) * |
| 745 | (NT+1)) & 0xfffffff0) + 0x10); |
| 746 | if (!p) |
| 747 | { |
| 748 | printf( "%s: %s allocation failure, %s\n", |
| 749 | __FUNCTION__, dev->name, "Tx Descriptor"); |
| 750 | free(dev); |
| 751 | return; |
| 752 | } |
| 753 | |
| 754 | p->eth_rx_desc = |
| 755 | (eth0_rx_desc_single *) |
| 756 | (((unsigned int) malloc(sizeof (eth0_rx_desc_single) * |
| 757 | (NR+1)) & 0xfffffff0) + 0x10); |
| 758 | if (!p->eth_rx_desc) |
| 759 | { |
| 760 | printf( "%s: %s allocation failure, %s\n", |
| 761 | __FUNCTION__, dev->name, "Rx Descriptor"); |
| 762 | free(dev); |
| 763 | free(p); |
| 764 | return; |
| 765 | } |
| 766 | |
| 767 | p->eth_tx_buffer = |
| 768 | (char *) (((unsigned int) malloc(GT6426x_ETH_BUF_SIZE) & 0xfffffff0) + 0x10); |
| 769 | if (!p->eth_tx_buffer) |
| 770 | { |
| 771 | printf( "%s: %s allocation failure, %s\n", |
| 772 | __FUNCTION__, dev->name, "Tx Bufffer"); |
| 773 | free(dev); |
| 774 | free(p); |
| 775 | free(p->eth_rx_desc); |
| 776 | return; |
| 777 | } |
| 778 | |
| 779 | for (temp = 0 ; temp < NR ; temp ++) { |
| 780 | p->eth_rx_buffer[temp] = |
| 781 | (char *) |
| 782 | (((unsigned int) malloc(GT6426x_ETH_BUF_SIZE) & 0xfffffff0) + 0x10); |
| 783 | if (!p->eth_rx_buffer[temp]) |
| 784 | { |
| 785 | printf( "%s: %s allocation failure, %s\n", |
| 786 | __FUNCTION__, dev->name, "Rx Buffers"); |
| 787 | free(dev); |
| 788 | free(p); |
| 789 | free(p->eth_tx_buffer); |
| 790 | free(p->eth_rx_desc); |
| 791 | free(p->eth_tx_desc); |
| 792 | while (temp >= 0) |
| 793 | free(p->eth_rx_buffer[--temp]); |
| 794 | return; |
| 795 | } |
| 796 | } |
| 797 | |
| 798 | |
| 799 | eth_register(dev); |
Jon Loeliger | 4ed9ed6 | 2007-07-09 18:24:55 -0500 | [diff] [blame] | 800 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
Marian Balakowicz | aab8c49 | 2005-10-28 22:30:33 +0200 | [diff] [blame] | 801 | miiphy_register(dev->name, |
| 802 | gt6426x_miiphy_read, gt6426x_miiphy_write); |
| 803 | #endif |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 804 | } |
Marian Balakowicz | aab8c49 | 2005-10-28 22:30:33 +0200 | [diff] [blame] | 805 | |
wdenk | 5772de4 | 2002-11-03 10:23:02 +0000 | [diff] [blame] | 806 | } |
Jon Loeliger | 13f7599 | 2007-07-10 10:39:10 -0500 | [diff] [blame] | 807 | #endif |