diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/kuldax/ramstage.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/src/mainboard/google/brya/variants/kuldax/ramstage.c b/src/mainboard/google/brya/variants/kuldax/ramstage.c index 4bec1d4447..5a7123789a 100644 --- a/src/mainboard/google/brya/variants/kuldax/ramstage.c +++ b/src/mainboard/google/brya/variants/kuldax/ramstage.c @@ -20,45 +20,45 @@ 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, 150 }, - { PCI_DID_INTEL_ADL_P_ID_6, 15, 150 }, - { PCI_DID_INTEL_ADL_P_ID_5, 28, 150 }, - { PCI_DID_INTEL_ADL_P_ID_3, 28, 150 }, + { PCI_DID_INTEL_ADL_P_ID_10, 15, 83 }, + { PCI_DID_INTEL_ADL_P_ID_7, 15, 225 }, + { PCI_DID_INTEL_ADL_P_ID_6, 15, 225 }, + { PCI_DID_INTEL_ADL_P_ID_5, 28, 225 }, + { PCI_DID_INTEL_ADL_P_ID_3, 28, 225 }, }; const struct system_power_limits revise_sys_limits[] = { /* SKU_ID, TDP (Watts), psys_pl2 (Watts) */ - { PCI_DID_INTEL_ADL_P_ID_10, 15, 150 }, - { PCI_DID_INTEL_ADL_P_ID_7, 15, 150 }, - { PCI_DID_INTEL_ADL_P_ID_6, 15, 150 }, - { PCI_DID_INTEL_ADL_P_ID_5, 28, 150 }, - { PCI_DID_INTEL_ADL_P_ID_3, 28, 150 }, + { PCI_DID_INTEL_ADL_P_ID_10, 15, 225 }, + { PCI_DID_INTEL_ADL_P_ID_7, 15, 225 }, + { PCI_DID_INTEL_ADL_P_ID_6, 15, 225 }, + { PCI_DID_INTEL_ADL_P_ID_5, 28, 225 }, + { PCI_DID_INTEL_ADL_P_ID_3, 28, 225 }, }; /* * Psys_pmax considerations. * * Given the hardware design in kuldax, the serial shunt resistor is 0.005ohm. - * The full scale of hardware PSYS signal 1.6v maps to system current 7.5A + * The full scale of hardware PSYS signal 1.6v maps to system current 11.25A * instead of real system power. The equation is shown below: - * PSYS = 1.6v = (0.01ohm x 7.5A) x 50 (INA213, gain 50V/V) x R501/(R501 + R510) - * R501/(R501 + R510) = 0.858 = 20K / (20K + 3.3K) + * PSYS = 1.6v = (0.005ohm x 11.25A) x 50 (INA213, gain 50V/V) x R501/(R501 + R510) + * R501/(R501 + R510) = 0.57 = 20K / (20K + 15K) * * 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 7.5A = 112.5W - * For Type-C 20V, the Psys_pmax should be 20v x 7.5A = 150W - * For a barrel jack, the Psys_pmax should be 20v x 7.5A = 150W + * For Type-C 15V, the Psys_pmax should be 15v x 11.25A = 168.75W + * For Type-C 20V, the Psys_pmax should be 20v x 11.25A = 225W + * For a barrel jack, the Psys_pmax should be 20v x 11.25A = 225W * * Imagine that there is a type-c 100W (20V/5A) connected to DUT w/ full loading, - * and the Psys_pmax setting is 150W. Then IMVP9.1 can calculate the current system - * power = 150W * 5A / 7.5A = 100W, which is the actual system power. + * and the Psys_pmax setting is 225W. Then IMVP9.1 can calculate the current system + * power = 225W * 5A / 11.25A = 100W, which is the actual system power. */ const struct psys_config psys_config = { .efficiency = 97, - .psys_imax_ma = 7500, + .psys_imax_ma = 11250, .bj_volts_mv = 20000 }; |