void broadwell_run_reference_code(void)
{
int ret, dummy;
struct pei_data pei_data;
pei_wrapper_entry_t entry;
memset(&pei_data, 0, sizeof(pei_data));
mainboard_fill_pei_data(&pei_data);
broadwell_fill_pei_data(&pei_data);
pei_data.boot_mode = acpi_is_wakeup_s3() ? SLEEP_STATE_S3 : 0;
pei_data.saved_data = (void *) &dummy;
entry = load_reference_code();
if (entry == NULL) {
printk(BIOS_ERR, "Reference code not found\n");
return;
}
/* Call into reference code. */
ret = entry(&pei_data);
if (ret != 0) {
printk(BIOS_ERR, "Reference code returned %d\n", ret);
return;
}
}
static pei_wrapper_entry_t load_reference_code(void)
{
struct prog prog = {
.name = CONFIG_CBFS_PREFIX "/refcode",
};
struct rmod_stage_load refcode = {
.cbmem_id = CBMEM_ID_REFCODE,
.prog = &prog,
};
if (acpi_is_wakeup_s3()) {
return load_refcode_from_cache();
}
if (load_refcode_from_vboot(&refcode) ||
load_refcode_from_cbfs(&refcode))
return NULL;
/* Cache loaded reference code. */
cache_refcode(&refcode);
return prog_entry(&prog);
}
void broadwell_run_reference_code(void)
{
int ret, dummy;
struct pei_data pei_data;
pei_wrapper_entry_t entry;
memset(&pei_data, 0, sizeof(pei_data));
mainboard_fill_pei_data(&pei_data);
broadwell_fill_pei_data(&pei_data);
pei_data.boot_mode = acpi_slp_type;
pei_data.saved_data = (void *) &dummy;
entry = load_reference_code();
if (entry == NULL) {
printk(BIOS_ERR, "Reference code not found\n");
return;
}
/* Call into reference code. */
ret = entry(&pei_data);
if (ret != 0) {
printk(BIOS_ERR, "Reference code returned %d\n", ret);
return;
}
}
int dram_init(void)
{
struct pei_data _pei_data __aligned(8);
struct pei_data *pei_data = &_pei_data;
struct udevice *dev, *me_dev, *pch_dev;
struct chipset_power_state ps;
const void *spd_data;
int ret, size;
memset(pei_data, '\0', sizeof(struct pei_data));
/* Print ME state before MRC */
ret = syscon_get_by_driver_data(X86_SYSCON_ME, &me_dev);
if (ret)
return ret;
intel_me_status(me_dev);
/* Save ME HSIO version */
ret = uclass_first_device(UCLASS_PCH, &pch_dev);
if (ret)
return ret;
if (!pch_dev)
return -ENODEV;
power_state_get(pch_dev, &ps);
intel_me_hsio_version(me_dev, &ps.hsio_version, &ps.hsio_checksum);
broadwell_fill_pei_data(pei_data);
mainboard_fill_pei_data(pei_data);
ret = uclass_first_device(UCLASS_NORTHBRIDGE, &dev);
if (ret)
return ret;
if (!dev)
return -ENODEV;
size = 256;
ret = mrc_locate_spd(dev, size, &spd_data);
if (ret)
return ret;
memcpy(pei_data->spd_data[0][0], spd_data, size);
memcpy(pei_data->spd_data[1][0], spd_data, size);
ret = prepare_mrc_cache(pei_data);
if (ret)
debug("prepare_mrc_cache failed: %d\n", ret);
debug("PEI version %#x\n", pei_data->pei_version);
ret = mrc_common_init(dev, pei_data, true);
if (ret)
return ret;
debug("Memory init done\n");
ret = sdram_find(dev);
if (ret)
return ret;
gd->ram_size = gd->arch.meminfo.total_32bit_memory;
debug("RAM size %llx\n", (unsigned long long)gd->ram_size);
debug("MRC output data length %#x at %p\n", pei_data->data_to_save_size,
pei_data->data_to_save);
/* S3 resume: don't save scrambler seed or MRC data */
if (pei_data->boot_mode != SLEEP_STATE_S3) {
/*
* This will be copied to SDRAM in reserve_arch(), then written
* to SPI flash in mrccache_save()
*/
gd->arch.mrc_output = (char *)pei_data->data_to_save;
gd->arch.mrc_output_len = pei_data->data_to_save_size;
}
gd->arch.pei_meminfo = pei_data->meminfo;
return 0;
}