const struct sdram_params *get_sdram_config()
{
uint32_t ramcode = sdram_get_ram_code();
/*
* If we need to apply some special hacks to RAMCODE mapping (ex, by
* board_id), do that now.
*/
printk(BIOS_SPEW, "%s: RAMCODE=%d\n", __func__, ramcode);
if (ramcode >= sizeof(sdram_configs) / sizeof(sdram_configs[0]) ||
sdram_configs[ramcode].MemoryType == NvBootMemoryType_Unused) {
die("Invalid RAMCODE.");
}
return &sdram_configs[ramcode];
}
void romstage(void)
{
timestamp_add_now(TS_START_ROMSTAGE);
console_init();
exception_init();
printk(BIOS_INFO, "T132: romstage here\n");
#if CONFIG_BOOTROM_SDRAM_INIT
printk(BIOS_INFO, "T132 romstage: SDRAM init done by BootROM, RAMCODE = %d\n",
sdram_get_ram_code());
#else
sdram_init(get_sdram_config());
printk(BIOS_INFO, "T132 romstage: sdram_init done\n");
#endif
timestamp_add_now(TS_AFTER_INITRAM);
/*
* Trust Zone needs to be initialized after the DRAM initialization
* because carveout registers are programmed during DRAM init.
* cbmem_initialize() is dependent on the Trust Zone region
* initalization because CBMEM lives right below the Trust Zone which
* needs to be properly identified.
*/
trustzone_region_init();
/*
* When romstage is running it's always on the reboot path -- never a
* resume path where cbmem recovery is required. Therefore, always
* initialize the cbmem area to be empty.
*/
cbmem_initialize_empty();
ccplex_cpu_prepare();
printk(BIOS_INFO, "T132 romstage: cpu prepare done\n");
ccplex_load_mts();
printk(BIOS_INFO, "T132 romstage: MTS loading done\n");
romstage_mainboard_init();
run_ramstage();
}