diff options
Diffstat (limited to 'src/northbridge/intel/haswell/raminit.c')
-rw-r--r-- | src/northbridge/intel/haswell/raminit.c | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/src/northbridge/intel/haswell/raminit.c b/src/northbridge/intel/haswell/raminit.c index b45682596e..09c8fc4d78 100644 --- a/src/northbridge/intel/haswell/raminit.c +++ b/src/northbridge/intel/haswell/raminit.c @@ -40,25 +40,8 @@ #define recovery_mode_enabled(x) 0 #endif -/* - * MRC scrambler seed offsets should be reserved in - * mainboard cmos.layout and not covered by checksum. - */ -#if CONFIG_USE_OPTION_TABLE -#include "option_table.h" -#define CMOS_OFFSET_MRC_SEED (CMOS_VSTART_mrc_scrambler_seed >> 3) -#define CMOS_OFFSET_MRC_SEED_S3 (CMOS_VSTART_mrc_scrambler_seed_s3 >> 3) -#define CMOS_OFFSET_MRC_SEED_CHK (CMOS_VSTART_mrc_scrambler_seed_chk >> 3) -#else -#define CMOS_OFFSET_MRC_SEED 152 -#define CMOS_OFFSET_MRC_SEED_S3 156 -#define CMOS_OFFSET_MRC_SEED_CHK 160 -#endif - static void save_mrc_data(struct pei_data *pei_data) { - u16 c1, c2, checksum; - #if CONFIG_EARLY_CBMEM_INIT struct mrc_data_container *mrcdata; int output_len = ALIGN(pei_data->mrc_output_len, 16); @@ -86,62 +69,16 @@ static void save_mrc_data(struct pei_data *pei_data) mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data, mrcdata->mrc_data_size); #endif - - /* 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); } static void prepare_mrc_cache(struct pei_data *pei_data) { struct mrc_data_container *mrc_cache; - u16 c1, c2, checksum, seed_checksum; // preset just in case there is an error pei_data->mrc_input = NULL; pei_data->mrc_input_len = 0; - /* Read scrambler seeds from CMOS */ - pei_data->scrambler_seed = cmos_read32(CMOS_OFFSET_MRC_SEED); - printk(BIOS_DEBUG, "Read scrambler seed 0x%08x from CMOS 0x%02x\n", - pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED); - - pei_data->scrambler_seed_s3 = cmos_read32(CMOS_OFFSET_MRC_SEED_S3); - printk(BIOS_DEBUG, "Read S3 scrambler seed 0x%08x from CMOS 0x%02x\n", - pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3); - - /* Compute seed checksum and compare */ - 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); - - seed_checksum = cmos_read(CMOS_OFFSET_MRC_SEED_CHK); - seed_checksum |= cmos_read(CMOS_OFFSET_MRC_SEED_CHK+1) << 8; - - if (checksum != seed_checksum) { - printk(BIOS_ERR, "%s: invalid seed checksum\n", __func__); - pei_data->scrambler_seed = 0; - pei_data->scrambler_seed_s3 = 0; - return; - } - if ((mrc_cache = find_current_mrc_cache()) == NULL) { /* error message printed in find_current_mrc_cache */ return; |