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mb/google/poppy/variant/nami: Overwrite AC/DC loadlines 

This patch adds a function to overwrite AC/DC loadlines for differnt
projects.

BUG=b:111761175
BRANCH=None
TEST=emerge-nami coreboot chromeos-bootimage and use DCI to dump
     AC/DC loadline settings. Tested on Vayne and Akali.

Change-Id: Id0068c5334c257b9f4c32b6088becbfe8391a864
Signed-off-by: Gaggery Tsai <gaggery.tsai@intel.com>
Reviewed-on: https://review.coreboot.org/27644
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Gaggery Tsai 2018-07-26 00:14:09 -07:00 committed by Patrick Georgi
parent 9cf1dd280f
commit 70627775f2
1 changed files with 89 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

116
src/mainboard/google/poppy/variants/nami/mainboard.c
View File

@ -33,6 +33,41 @@
#define PL2_DEFAULT 29
#define PL2_KBL_R 25
/* Variant for AKALI */
#define AKALI_SA_AC_LOADLINE 1100
#define AKALI_SA_DC_LOADLINE 1028
#define AKALI_IA_AC_LOADLINE 272
#define AKALI_IA_DC_LOADLINE 247
#define AKALI_GT_AC_LOADLINE 314
#define AKALI_GT_DC_LOADLINE 321
/* We only have Akali and Nami default settings so far */
enum project_sku {
PRJ_AKALI = 1,
};
static const struct {
enum project_sku sku;
int ac_loadline[NUM_VR_DOMAINS];
int dc_loadline[NUM_VR_DOMAINS];
} sku_overwrite_mapping[] = {
{
.sku = PRJ_AKALI,
.ac_loadline = {
AKALI_SA_AC_LOADLINE,
AKALI_IA_AC_LOADLINE,
AKALI_GT_AC_LOADLINE,
AKALI_GT_AC_LOADLINE
},
.dc_loadline = {
AKALI_SA_DC_LOADLINE,
AKALI_IA_DC_LOADLINE,
AKALI_GT_DC_LOADLINE,
AKALI_GT_DC_LOADLINE
}
},
};
static uint32_t get_pl2(uint32_t sku_id)
{
if ((sku_id == SKU_0_SONA) || (sku_id == SKU_1_SONA)) {
@ -61,33 +96,6 @@ uint32_t variant_board_sku(void)
return sku_id;
}
/* Override dev tree settings per board */
void variant_devtree_update(void)
{
uint32_t sku_id = variant_board_sku();
struct device *root = SA_DEV_ROOT;
config_t *cfg = root->chip_info;
/* Update PL2 based on SKU. */
cfg->tdp_pl2_override = get_pl2(sku_id);
switch (sku_id) {
case SKU_0_VAYNE:
case SKU_1_VAYNE:
case SKU_2_VAYNE:
case SKU_0_PANTHEON:
case SKU_1_PANTHEON:
case SKU_2_PANTHEON:
case SKU_0_SONA:
case SKU_1_SONA:
/* Disable unused port USB port */
cfg->usb2_ports[5].enable = 0;
break;
default:
break;
}
}
const char *smbios_mainboard_sku(void)
{
static char sku_str[14]; /* sku{0..4294967295} */
@ -194,3 +202,57 @@ const char *mainboard_vbt_filename(void)
break;
}
}
static int find_sku_mapping(const uint8_t oem_id)
{
/* Check if this OEM ID has a mapping table entry. */
for (int i = 0; i < ARRAY_SIZE(sku_overwrite_mapping); i++)
if (oem_id == sku_overwrite_mapping[i].sku)
return i;
return -1;
}
/* Override dev tree settings per board */
void variant_devtree_update(void)
{
uint32_t sku_id = variant_board_sku();
uint32_t i;
int oem_index;
struct device *root = SA_DEV_ROOT;
config_t *cfg = root->chip_info;
/* Update PL2 based on SKU. */
cfg->tdp_pl2_override = get_pl2(sku_id);
switch (sku_id) {
case SKU_0_VAYNE:
case SKU_1_VAYNE:
case SKU_2_VAYNE:
case SKU_0_PANTHEON:
case SKU_1_PANTHEON:
case SKU_2_PANTHEON:
case SKU_0_SONA:
case SKU_1_SONA:
/* Disable unused port USB port */
cfg->usb2_ports[5].enable = 0;
break;
default:
break;
}
/* Overwrite settings for different projects based on OEM ID*/
oem_index = find_sku_mapping(read_oem_id());
/* Return if the OEM ID is not supported or no changes are required */
if (oem_index < 0)
return;
for (i = 0; i < ARRAY_SIZE(cfg->domain_vr_config); i++) {
cfg->domain_vr_config[i].ac_loadline =
sku_overwrite_mapping[oem_index].ac_loadline[i];
cfg->domain_vr_config[i].dc_loadline =
sku_overwrite_mapping[oem_index].dc_loadline[i];
}
}