| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <baseboard/variants.h> |
| #include <chip.h> |
| #include <device/device.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include <ec/google/chromeec/ec.h> |
| #include <intelblocks/power_limit.h> |
| |
| 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, 55000, 55000, 123000 }, |
| { 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 }, |
| { PCI_DID_INTEL_ADL_P_ID_4, 45, 45000, 45000, 115000, 115000, 215000 }, |
| { PCI_DID_INTEL_ADL_P_ID_3, 45, 45000, 45000, 115000, 115000, 215000 }, |
| { PCI_DID_INTEL_ADL_P_ID_1, 45, 45000, 45000, 95000, 95000, 125000 }, |
| }; |
| |
| const struct system_power_limits sys_limits[] = { |
| /* SKU_ID, TDP (Watts), psys_pl2 (Watts) */ |
| { PCI_DID_INTEL_ADL_P_ID_10, 15, 135 }, |
| { PCI_DID_INTEL_ADL_P_ID_7, 15, 135 }, |
| { PCI_DID_INTEL_ADL_P_ID_6, 15, 135 }, |
| { 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 }, |
| { PCI_DID_INTEL_ADL_P_ID_4, 45, 230 }, |
| { PCI_DID_INTEL_ADL_P_ID_3, 45, 230 }, |
| { PCI_DID_INTEL_ADL_P_ID_1, 45, 230 }, |
| }; |
| |
| /* |
| * Psys_pmax considerations. |
| * |
| * Given the hardware design in brask, the serial shunt resistor is 0.005ohm. |
| * The full scale of hardware PSYS signal 1.6v maps to system current 13.52A |
| * instead of real system power. The equation is shown below: |
| * PSYS = 1.6v = (0.005ohm x 13.52A) x 50 (INA213, gain 50V/V) x R501/(R501 + R510) |
| * R501/(R501 + R510) = 0.47 = 15K / (15K + 16.9K) |
| * |
| * 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 13.52A = 202.8W |
| * For Type-C 20V, the Psys_pmax should be 20v x 13.52A = 270.4W |
| * For a barrel jack, the Psys_pmax should be 19.5v x 13.52A = 263.6W |
| * |
| * Imagine that there is a type-c 100W (20V/5A) connected to DUT w/ full loading, |
| * and the Psys_pmax setting is 270.4W. Then IMVP9.1 can calculate the current system |
| * power = 270.4W * 5A / 13.52A = 100W, which is the actual system power. |
| */ |
| const struct psys_config psys_config = { |
| .efficiency = 97, |
| .psys_imax_ma = 13520, |
| .bj_volts_mv = 19500 |
| }; |
| |
| void variant_devtree_update(void) |
| { |
| size_t total_entries = ARRAY_SIZE(limits); |
| variant_update_psys_power_limits(limits, sys_limits, total_entries, &psys_config); |
| variant_update_power_limits(limits, total_entries); |
| } |