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nb/amd/amdmct/mct_ddr3: Save and restore SkewMemClk for S3 resume 

Change-Id: Ib331bd330530d4d6be5eb7351d9f9b15c135dd63
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/13167
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Timothy Pearson 2015-11-24 14:12:02 -06:00 committed by Martin Roth
parent e79cb5e19d
commit b410d267e3
2 changed files with 9 additions and 2 deletions
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5
src/northbridge/amd/amdmct/mct_ddr3/mct_d.h
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@ -729,7 +729,7 @@ struct amd_s3_persistent_mct_channel_data {
uint32_t f3x5c;
uint32_t f3x60;
/* Family 15h-specific registers (90 dwords) */
/* Family 15h-specific registers (91 dwords) */
uint32_t f2x200;
uint32_t f2x204;
uint32_t f2x208;
@ -785,8 +785,9 @@ struct amd_s3_persistent_mct_channel_data {
uint32_t f2x9cx0d0fc231;
uint32_t f2x9cx0d0f0_0_f_31[9]; /* [lane] */
uint32_t f2x9cx0d0f8021;
uint32_t f2x9cx0d0fe00a;
/* TOTAL: 342 dwords */
/* TOTAL: 343 dwords */
} __attribute__((packed));
struct amd_s3_persistent_node_data {

6
src/northbridge/amd/amdmct/mct_ddr3/s3utils.c
View File

@ -454,6 +454,9 @@ void copy_mct_data_to_save_variable(struct amd_s3_persistent_data* persistent_da
data->f2x9cx0d0f0_0_f_31[i] = read_amd_dct_index_register_dct(dev_fn2, node, channel, 0x98, 0x0d0f0031 | (i << 8));
data->f2x9cx0d0f8021 = read_amd_dct_index_register_dct(dev_fn2, node, channel, 0x98, 0x0d0f8021);
if (channel == 1)
data->f2x9cx0d0fe00a = read_amd_dct_index_register_dct(dev_fn2, node, channel, 0x98, 0x0d0fe00a);
}
/* Stage 4 */
@ -796,6 +799,9 @@ void restore_mct_data_from_save_variable(struct amd_s3_persistent_data* persiste
write_amd_dct_index_register_dct(PCI_DEV(0, 0x18 + node, 2), node, channel, 0x98, 0x0d0f0031 | (i << 8), data->f2x9cx0d0f0_0_f_31[i]);
write_amd_dct_index_register_dct(PCI_DEV(0, 0x18 + node, 2), node, channel, 0x98, 0x0d0f8021, data->f2x9cx0d0f8021);
if (channel == 1)
write_amd_dct_index_register_dct(PCI_DEV(0, 0x18 + node, 2), node, channel, 0x98, 0x0d0fe00a, data->f2x9cx0d0fe00a);
}
}
}