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));
}
int lasat_init_board_info(void)
{
int c;
unsigned long crc;
unsigned long cfg0, cfg1;
const struct product_info *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) {
printk(KERN_WARNING "WARNING...\nWARNING...\nEEPROM CRC does "
"not match calculated, attempting to soldier on...\n");
}
if (lasat_board_info.li_eeprom_info.version != LASAT_EEPROM_VERSION) {
printk(KERN_WARNING "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) {
printk(KERN_WARNING "WARNING...\nWARNING...\n"
"Invalid 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);
}
return 0;
}
