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mb/purism/librem_skl: Drop DQ and DQS byte maps 

These settings are not necessary for DDR4 and can be dropped.

Change-Id: I1946be239f0c90db995a60570474039cef45cfa9
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
This commit is contained in:
Angel Pons 2020-10-09 23:19:51 +02:00
parent a5314b62b6
commit 4cee40a19d
1 changed files with 0 additions and 26 deletions
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26
src/mainboard/purism/librem_skl/romstage.c
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@ -5,28 +5,6 @@
#include <spd_bin.h> #include <spd_bin.h>
#include <string.h> #include <string.h>
static void mainboard_fill_dq_map_data(void *dq_map_ch0, void *dq_map_ch1)
{
/* DQ byte map */
const u8 dq_map[2][12] = {
{ 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0,
0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 },
{ 0x33, 0xCC, 0x00, 0xCC, 0x33, 0xCC,
0x33, 0x00, 0xFF, 0x00, 0xFF, 0x00 } };
memcpy(dq_map_ch0, dq_map[0], sizeof(dq_map[0]));
memcpy(dq_map_ch1, dq_map[1], sizeof(dq_map[1]));
}
static void mainboard_fill_dqs_map_data(void *dqs_map_ch0, void *dqs_map_ch1)
{
/* DQS CPU<>DRAM map */
const u8 dqs_map[2][8] = {
{ 0, 1, 3, 2, 4, 5, 6, 7 },
{ 1, 0, 4, 5, 2, 3, 6, 7 } };
memcpy(dqs_map_ch0, dqs_map[0], sizeof(dqs_map[0]));
memcpy(dqs_map_ch1, dqs_map[1], sizeof(dqs_map[1]));
}
static void mainboard_fill_rcomp_res_data(void *rcomp_ptr) static void mainboard_fill_rcomp_res_data(void *rcomp_ptr)
{ {
/* Rcomp resistor */ /* Rcomp resistor */
@ -54,10 +32,6 @@ void mainboard_memory_init_params(FSPM_UPD *mupd)
dump_spd_info(&blk); dump_spd_info(&blk);
assert(blk.spd_array[0][0] != 0); assert(blk.spd_array[0][0] != 0);
mainboard_fill_dq_map_data(&mem_cfg->DqByteMapCh0,
&mem_cfg->DqByteMapCh1);
mainboard_fill_dqs_map_data(&mem_cfg->DqsMapCpu2DramCh0,
&mem_cfg->DqsMapCpu2DramCh1);
mainboard_fill_rcomp_res_data(&mem_cfg->RcompResistor); mainboard_fill_rcomp_res_data(&mem_cfg->RcompResistor);
mainboard_fill_rcomp_strength_data(&mem_cfg->RcompTarget); mainboard_fill_rcomp_strength_data(&mem_cfg->RcompTarget);