void save_mrc_data(struct pei_data *pei_data)
{
u16 c1, c2, checksum;
/* Save the MRC S3 restore data to cbmem */
store_current_mrc_cache(pei_data->mrc_output, pei_data->mrc_output_len);
/* Save the MRC seed values to CMOS */
cmos_write32(CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed);
printk(BIOS_DEBUG, "Save scrambler seed 0x%08x to CMOS 0x%02x\n",
pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED);
cmos_write32(CMOS_OFFSET_MRC_SEED_S3, pei_data->scrambler_seed_s3);
printk(BIOS_DEBUG, "Save s3 scrambler seed 0x%08x to CMOS 0x%02x\n",
pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3);
/* Save a simple checksum of the seed values */
c1 = compute_ip_checksum((u8*)&pei_data->scrambler_seed,
sizeof(u32));
c2 = compute_ip_checksum((u8*)&pei_data->scrambler_seed_s3,
sizeof(u32));
checksum = add_ip_checksums(sizeof(u32), c1, c2);
cmos_write(checksum & 0xff, CMOS_OFFSET_MRC_SEED_CHK);
cmos_write((checksum >> 8) & 0xff, CMOS_OFFSET_MRC_SEED_CHK+1);
}
void save_mrc_data(struct pei_data *pei_data)
{
u16 c1, c2, checksum;
struct mrc_data_container *mrcdata;
int output_len = ALIGN(pei_data->mrc_output_len, 16);
/* Save the MRC S3 restore data to cbmem */
mrcdata = cbmem_add
(CBMEM_ID_MRCDATA,
output_len + sizeof(struct mrc_data_container));
if (mrcdata != NULL) {
printk(BIOS_DEBUG, "Relocate MRC DATA from %p to %p (%u bytes)\n",
pei_data->mrc_output, mrcdata, output_len);
mrcdata->mrc_signature = MRC_DATA_SIGNATURE;
mrcdata->mrc_data_size = output_len;
mrcdata->reserved = 0;
memcpy(mrcdata->mrc_data, pei_data->mrc_output,
pei_data->mrc_output_len);
/* Zero the unused space in aligned buffer. */
if (output_len > pei_data->mrc_output_len)
memset(mrcdata->mrc_data+pei_data->mrc_output_len, 0,
output_len - pei_data->mrc_output_len);
mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data,
mrcdata->mrc_data_size);
}
/* Save the MRC seed values to CMOS */
cmos_write32(CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed);
printk(BIOS_DEBUG, "Save scrambler seed 0x%08x to CMOS 0x%02x\n",
pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED);
cmos_write32(CMOS_OFFSET_MRC_SEED_S3, pei_data->scrambler_seed_s3);
printk(BIOS_DEBUG, "Save s3 scrambler seed 0x%08x to CMOS 0x%02x\n",
pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3);
/* Save a simple checksum of the seed values */
c1 = compute_ip_checksum((u8*)&pei_data->scrambler_seed,
sizeof(u32));
c2 = compute_ip_checksum((u8*)&pei_data->scrambler_seed_s3,
sizeof(u32));
checksum = add_ip_checksums(sizeof(u32), c1, c2);
cmos_write(checksum & 0xff, CMOS_OFFSET_MRC_SEED_CHK);
cmos_write((checksum >> 8) & 0xff, CMOS_OFFSET_MRC_SEED_CHK+1);
}
void post_log_extra(u32 value)
{
spin_lock(&cmos_post_lock);
switch (cmos_read(CMOS_POST_BANK_OFFSET)) {
case CMOS_POST_BANK_0_MAGIC:
cmos_write32(CMOS_POST_BANK_0_EXTRA, value);
break;
case CMOS_POST_BANK_1_MAGIC:
cmos_write32(CMOS_POST_BANK_1_EXTRA, value);
break;
}
spin_unlock(&cmos_post_lock);
}
