Alan Huang | b1da051 | 2021-11-23 18:15:43 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | |
| 3 | #include <baseboard/variants.h> |
| 4 | #include <chip.h> |
| 5 | #include <device/device.h> |
| 6 | #include <device/pci_ids.h> |
| 7 | #include <device/pci_ops.h> |
| 8 | #include <ec/google/chromeec/ec.h> |
| 9 | #include <intelblocks/power_limit.h> |
| 10 | |
| 11 | const struct cpu_power_limits limits[] = { |
| 12 | /* SKU_ID, TDP (Watts), pl1_min, pl1_max, pl2_min, pl2_max, pl4 */ |
Felix Singer | 43b7f41 | 2022-03-07 04:34:52 +0100 | [diff] [blame^] | 13 | { PCI_DID_INTEL_ADL_P_ID_10, 15, 15000, 15000, 55000, 55000, 123000 }, |
| 14 | { PCI_DID_INTEL_ADL_P_ID_7, 15, 15000, 15000, 55000, 55000, 123000 }, |
| 15 | { PCI_DID_INTEL_ADL_P_ID_6, 15, 15000, 15000, 55000, 55000, 123000 }, |
| 16 | { PCI_DID_INTEL_ADL_P_ID_5, 28, 28000, 28000, 64000, 64000, 90000 }, |
| 17 | { PCI_DID_INTEL_ADL_P_ID_3, 28, 28000, 28000, 64000, 64000, 140000 }, |
| 18 | { PCI_DID_INTEL_ADL_P_ID_5, 45, 45000, 45000, 95000, 95000, 125000 }, |
| 19 | { PCI_DID_INTEL_ADL_P_ID_4, 45, 45000, 45000, 115000, 115000, 215000 }, |
| 20 | { PCI_DID_INTEL_ADL_P_ID_3, 45, 45000, 45000, 115000, 115000, 215000 }, |
| 21 | { PCI_DID_INTEL_ADL_P_ID_1, 45, 45000, 45000, 95000, 95000, 125000 }, |
Alan Huang | b1da051 | 2021-11-23 18:15:43 +0800 | [diff] [blame] | 22 | }; |
| 23 | |
| 24 | const struct system_power_limits sys_limits[] = { |
| 25 | /* SKU_ID, TDP (Watts), psys_pl2 (Watts) */ |
Felix Singer | 43b7f41 | 2022-03-07 04:34:52 +0100 | [diff] [blame^] | 26 | { PCI_DID_INTEL_ADL_P_ID_10, 15, 135 }, |
| 27 | { PCI_DID_INTEL_ADL_P_ID_7, 15, 135 }, |
| 28 | { PCI_DID_INTEL_ADL_P_ID_6, 15, 135 }, |
| 29 | { PCI_DID_INTEL_ADL_P_ID_5, 28, 230 }, |
| 30 | { PCI_DID_INTEL_ADL_P_ID_3, 28, 230 }, |
| 31 | { PCI_DID_INTEL_ADL_P_ID_5, 45, 230 }, |
| 32 | { PCI_DID_INTEL_ADL_P_ID_4, 45, 230 }, |
| 33 | { PCI_DID_INTEL_ADL_P_ID_3, 45, 230 }, |
| 34 | { PCI_DID_INTEL_ADL_P_ID_1, 45, 230 }, |
Alan Huang | b1da051 | 2021-11-23 18:15:43 +0800 | [diff] [blame] | 35 | }; |
| 36 | |
| 37 | /* |
| 38 | * Psys_pmax considerations. |
| 39 | * |
| 40 | * Given the hardware design in brask, the serial shunt resistor is 0.005ohm. |
| 41 | * The full scale of hardware PSYS signal 1.6v maps to system current 13.52A |
| 42 | * instead of real system power. The equation is shown below: |
| 43 | * PSYS = 1.6v = (0.005ohm x 13.52A) x 50 (INA213, gain 50V/V) x R501/(R501 + R510) |
| 44 | * R501/(R501 + R510) = 0.47 = 15K / (15K + 16.9K) |
| 45 | * |
| 46 | * The Psys_pmax is a SW setting which tells IMVP9.1 the mapping b/w system input |
| 47 | * current and the actual system power. Since there is no voltage information |
| 48 | * from PSYS, different voltage input would map to different Psys_pmax settings: |
| 49 | * For Type-C 15V, the Psys_pmax should be 15v x 13.52A = 202.8W |
| 50 | * For Type-C 20V, the Psys_pmax should be 20v x 13.52A = 270.4W |
| 51 | * For a barrel jack, the Psys_pmax should be 19.5v x 13.52A = 263.6W |
| 52 | * |
| 53 | * Imagine that there is a type-c 100W (20V/5A) connected to DUT w/ full loading, |
| 54 | * and the Psys_pmax setting is 270.4W. Then IMVP9.1 can calculate the current system |
| 55 | * power = 270.4W * 5A / 13.52A = 100W, which is the actual system power. |
| 56 | */ |
| 57 | const struct psys_config psys_config = { |
| 58 | .efficiency = 97, |
| 59 | .psys_imax_ma = 13520, |
| 60 | .bj_volts_mv = 19500 |
| 61 | }; |
| 62 | |
| 63 | void variant_devtree_update(void) |
| 64 | { |
| 65 | size_t total_entries = ARRAY_SIZE(limits); |
| 66 | variant_update_psys_power_limits(limits, sys_limits, total_entries, &psys_config); |
| 67 | variant_update_power_limits(limits, total_entries); |
| 68 | } |