From fe99cbb378c58453ca8fd985f584b8cabe71dc85 Mon Sep 17 00:00:00 2001 From: Dtrain Hsu Date: Thu, 28 Apr 2022 11:09:21 +0800 Subject: [PATCH] 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 Change-Id: I6df2a17969067f8242519f7fd4ffd08a682fe3e5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/63899 Tested-by: build bot (Jenkins) Reviewed-by: Hou-hsun Lee Reviewed-by: Tim Wawrzynczak --- .../google/brya/variants/kinox/ramstage.c | 26 +++++++++---------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/src/mainboard/google/brya/variants/kinox/ramstage.c b/src/mainboard/google/brya/variants/kinox/ramstage.c index aa805ce45b..fc61e410e9 100644 --- a/src/mainboard/google/brya/variants/kinox/ramstage.c +++ b/src/mainboard/google/brya/variants/kinox/ramstage.c @@ -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 };