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mb/google/brya/var/kinox: Update power control settings for 15W SOC 

Kinox keeps 65W barrel jack for Intel Pentium/Celeron SOC. Considering
the dynamic loading of 65W adapter, it can up to 130% with 20ms. Update
power settings to below for preventing blowing out the adapter.
- Psys_Pmax 135W
- PL2 39W
- PL4 72.5W
- Psys_PL2 65W
- Psys_imax_ma 6750ma
- bj_volts_mv 20000mv

For Intel Core processor, Kinox will use 90W barrel jack. Modify default
power settings as below.
- Psys_Pmax 135W
- PL2 55W
- PL4 123W
- Psys_PL2 90W
- Psys_imax_ma 6750ma
- bj_volts_mv 20000mv

BUG=b:213417026, b:222599762
TEST=emerge-brask coreboot

Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: I6df2a17969067f8242519f7fd4ffd08a682fe3e5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63899
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hou-hsun Lee <hou-hsun.lee@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Dtrain Hsu 2022-04-28 11:09:21 +08:00 committed by Felix Held
parent b90e251000
commit fe99cbb378
1 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/mainboard/google/brya/variants/kinox/ramstage.c
View File

@ -10,9 +10,9 @@
const struct cpu_power_limits limits[] = {
/* SKU_ID, TDP (Watts), pl1_min, pl1_max, pl2_min, pl2_max, pl4 */
{ PCI_DID_INTEL_ADL_P_ID_10, 15, 15000, 15000, 39000, 39000, 100000 },
{ PCI_DID_INTEL_ADL_P_ID_7, 15, 15000, 15000, 39000, 39000, 100000 },
{ PCI_DID_INTEL_ADL_P_ID_6, 15, 15000, 15000, 39000, 39000, 100000 },
{ PCI_DID_INTEL_ADL_P_ID_10, 15, 15000, 15000, 39000, 39000, 72500 },
{ PCI_DID_INTEL_ADL_P_ID_7, 15, 15000, 15000, 55000, 55000, 123000 },
{ PCI_DID_INTEL_ADL_P_ID_6, 15, 15000, 15000, 55000, 55000, 123000 },
{ PCI_DID_INTEL_ADL_P_ID_5, 28, 28000, 28000, 64000, 64000, 90000 },
{ PCI_DID_INTEL_ADL_P_ID_3, 28, 28000, 28000, 64000, 64000, 140000 },
{ PCI_DID_INTEL_ADL_P_ID_5, 45, 45000, 45000, 95000, 95000, 125000 },
@ -24,8 +24,8 @@ const struct cpu_power_limits limits[] = {
const struct system_power_limits sys_limits[] = {
/* SKU_ID, TDP (Watts), psys_pl2 (Watts) */
{ PCI_DID_INTEL_ADL_P_ID_10, 15, 65 },
{ PCI_DID_INTEL_ADL_P_ID_7, 15, 65 },
{ PCI_DID_INTEL_ADL_P_ID_6, 15, 65 },
{ PCI_DID_INTEL_ADL_P_ID_7, 15, 90 },
{ PCI_DID_INTEL_ADL_P_ID_6, 15, 90 },
{ PCI_DID_INTEL_ADL_P_ID_5, 28, 230 },
{ PCI_DID_INTEL_ADL_P_ID_3, 28, 230 },
{ PCI_DID_INTEL_ADL_P_ID_5, 45, 230 },
@ -40,23 +40,23 @@ const struct system_power_limits sys_limits[] = {
* Given the hardware design in kinox, the serial shunt resistor is 0.01ohm.
* The full scale of hardware PSYS signal 1.6v maps to system current 5A
* instead of real system power. The equation is shown below:
* PSYS = 1.6v ~= (0.01ohm x 5A) x 50 (INA213, gain 50V/V) x R501/(R501 + R510)
* R501/(R501 + R510) = 0.63 = 300K / (300K + 169K)
* PSYS = 1.6v ~= (0.01ohm x 6.75A) x 50 (INA213, gain 50V/V) x R501/(R501 + R510)
* R501/(R501 + R510) = 0.475 = 200K / (200K + 221K)
*
* The Psys_pmax is a SW setting which tells IMVP9.1 the mapping b/w system input
* current and the actual system power. Since there is no voltage information
* from PSYS, different voltage input would map to different Psys_pmax settings:
* For Type-C 15V, the Psys_pmax should be 15v x 5A = 75W
* For Type-C 20V, the Psys_pmax should be 20v x 5A = 100W
* For a barrel jack, the Psys_pmax should be 20v x 5A = 100W
* For Type-C 15V, the Psys_pmax should be 15v x 6.75A = 101.25W
* For Type-C 20V, the Psys_pmax should be 20v x 6.75A = 135W
* For a barrel jack, the Psys_pmax should be 20v x 6.75A = 135W
*
* Imagine that there is a type-c 100W (20V/5A) connected to DUT w/ full loading,
* and the Psys_pmax setting is 100W. Then IMVP9.1 can calculate the current system
* power = 100W * 5A / 5A = 100W, which is the actual system power.
* and the Psys_pmax setting is 135W. Then IMVP9.1 can calculate the current system
* power = 135W * 5A / 6.75A = 100W, which is the actual system power.
*/
const struct psys_config psys_config = {
.efficiency = 97,
.psys_imax_ma = 5000,
.psys_imax_ma = 6750,
.bj_volts_mv = 20000
};