/* * lasat_board.c * * Thomas Horsten * Copyright (C) 2000 LASAT Networks A/S. * * ######################################################################## * * This program is free software; you can distribute it and/or modify it * under the terms of the GNU General Public License (Version 2) as * published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. * * ######################################################################## * * Routines specific to the LASAT boards */ #include #include #include #include #include #include #include #include #include "at93c.h" /* New model description table */ #include "lasat_models.h" #define EEPROM_CRC(data, len) (~0 ^ crc32(~0, data, len)) struct lasat_info lasat_board_info; void update_bcastaddr(void); int EEPROMRead(unsigned int pos, unsigned char *data, int len) { int i; for (i=0; i 0x200000) { ls[LASAT_MTD_CONFIG] = 0x100000; ls[LASAT_MTD_FS] = 0x500000; } } else { lasat_board_info.li_flash_base = 0x10000000; if (lasat_board_info.li_flash_size < 0x1000000) { lb[LASAT_MTD_BOOTLOADER] = 0x10000000; ls[LASAT_MTD_CONFIG] = 0x100000; if (lasat_board_info.li_flash_size >= 0x400000) { ls[LASAT_MTD_FS] = lasat_board_info.li_flash_size - 0x300000; } } } for (i = 1; i < LASAT_MTD_LAST; i++) lb[i] = lb[i-1] + ls[i-1]; } int lasat_init_board_info(void) { int c; unsigned long crc; unsigned long cfg0, cfg1; const product_info_t *ppi; int i_n_base_models = N_BASE_MODELS; const char * const * i_txt_base_models = txt_base_models; int i_n_prids = N_PRIDS; memset(&lasat_board_info, 0, sizeof(lasat_board_info)); /* First read the EEPROM info */ EEPROMRead(0, (unsigned char *)&lasat_board_info.li_eeprom_info, sizeof(struct lasat_eeprom_struct)); /* Check the CRC */ crc = EEPROM_CRC((unsigned char *)(&lasat_board_info.li_eeprom_info), sizeof(struct lasat_eeprom_struct) - 4); if (crc != lasat_board_info.li_eeprom_info.crc32) { prom_printf("WARNING...\nWARNING...\nEEPROM CRC does not match calculated, attempting to soldier on...\n"); } if (lasat_board_info.li_eeprom_info.version != LASAT_EEPROM_VERSION) { prom_printf("WARNING...\nWARNING...\nEEPROM version %d, wanted version %d, attempting to soldier on...\n", (unsigned int)lasat_board_info.li_eeprom_info.version, LASAT_EEPROM_VERSION); } cfg0 = lasat_board_info.li_eeprom_info.cfg[0]; cfg1 = lasat_board_info.li_eeprom_info.cfg[1]; if ( LASAT_W0_DSCTYPE(cfg0) != 1) { prom_printf("WARNING...\nWARNING...\nInvalid configuration read from EEPROM, attempting to soldier on..."); } /* We have a valid configuration */ switch (LASAT_W0_SDRAMBANKSZ(cfg0)) { case 0: lasat_board_info.li_memsize = 0x0800000; break; case 1: lasat_board_info.li_memsize = 0x1000000; break; case 2: lasat_board_info.li_memsize = 0x2000000; break; case 3: lasat_board_info.li_memsize = 0x4000000; break; case 4: lasat_board_info.li_memsize = 0x8000000; break; default: lasat_board_info.li_memsize = 0; } switch (LASAT_W0_SDRAMBANKS(cfg0)) { case 0: break; case 1: lasat_board_info.li_memsize *= 2; break; default: break; } switch (LASAT_W0_BUSSPEED(cfg0)) { case 0x0: lasat_board_info.li_bus_hz = 60000000; break; case 0x1: lasat_board_info.li_bus_hz = 66000000; break; case 0x2: lasat_board_info.li_bus_hz = 66666667; break; case 0x3: lasat_board_info.li_bus_hz = 80000000; break; case 0x4: lasat_board_info.li_bus_hz = 83333333; break; case 0x5: lasat_board_info.li_bus_hz = 100000000; break; } switch (LASAT_W0_CPUCLK(cfg0)) { case 0x0: lasat_board_info.li_cpu_hz = lasat_board_info.li_bus_hz; break; case 0x1: lasat_board_info.li_cpu_hz = lasat_board_info.li_bus_hz + (lasat_board_info.li_bus_hz >> 1); break; case 0x2: lasat_board_info.li_cpu_hz = lasat_board_info.li_bus_hz + lasat_board_info.li_bus_hz; break; case 0x3: lasat_board_info.li_cpu_hz = lasat_board_info.li_bus_hz + lasat_board_info.li_bus_hz + (lasat_board_info.li_bus_hz >> 1); break; case 0x4: lasat_board_info.li_cpu_hz = lasat_board_info.li_bus_hz + lasat_board_info.li_bus_hz + lasat_board_info.li_bus_hz; break; } /* Flash size */ switch (LASAT_W1_FLASHSIZE(cfg1)) { case 0: lasat_board_info.li_flash_size = 0x200000; break; case 1: lasat_board_info.li_flash_size = 0x400000; break; case 2: lasat_board_info.li_flash_size = 0x800000; break; case 3: lasat_board_info.li_flash_size = 0x1000000; break; case 4: lasat_board_info.li_flash_size = 0x2000000; break; } init_flash_sizes(); lasat_board_info.li_bmid = LASAT_W0_BMID(cfg0); lasat_board_info.li_prid = lasat_board_info.li_eeprom_info.prid; if (lasat_board_info.li_prid == 0xffff || lasat_board_info.li_prid == 0) lasat_board_info.li_prid = lasat_board_info.li_bmid; /* Base model stuff */ if (lasat_board_info.li_bmid > i_n_base_models) lasat_board_info.li_bmid = i_n_base_models; strcpy(lasat_board_info.li_bmstr, i_txt_base_models[lasat_board_info.li_bmid]); /* Product ID dependent values */ c = lasat_board_info.li_prid; if (c >= i_n_prids) { strcpy(lasat_board_info.li_namestr, "Unknown Model"); strcpy(lasat_board_info.li_typestr, "Unknown Type"); } else { ppi = &vendor_info_table[0].vi_product_info[c]; strcpy(lasat_board_info.li_namestr, ppi->pi_name); if (ppi->pi_type) strcpy(lasat_board_info.li_typestr, ppi->pi_type); else sprintf(lasat_board_info.li_typestr, "%d",10*c); } #if defined(CONFIG_INET) && defined(CONFIG_SYSCTL) update_bcastaddr(); #endif return 0; } void lasat_write_eeprom_info(void) { unsigned long crc; /* Generate the CRC */ crc = EEPROM_CRC((unsigned char *)(&lasat_board_info.li_eeprom_info), sizeof(struct lasat_eeprom_struct) - 4); lasat_board_info.li_eeprom_info.crc32 = crc; /* Write the EEPROM info */ EEPROMWrite(0, (unsigned char *)&lasat_board_info.li_eeprom_info, sizeof(struct lasat_eeprom_struct)); }