diff options
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/brox/Kconfig | 13 | ||||
| -rw-r--r-- | src/mainboard/google/brox/romstage.c | 9 | ||||
| -rw-r--r-- | src/mainboard/google/brox/variants/baseboard/brox/ramstage.c | 42 | ||||
| -rw-r--r-- | src/mainboard/google/brox/variants/brox/ramstage.c | 11 |
4 files changed, 52 insertions, 23 deletions
diff --git a/src/mainboard/google/brox/Kconfig b/src/mainboard/google/brox/Kconfig index a1d284b553..8fd43f4cb7 100644 --- a/src/mainboard/google/brox/Kconfig +++ b/src/mainboard/google/brox/Kconfig @@ -117,6 +117,19 @@ config DRIVER_TPM_I2C_BUS hex default 0x4 if BOARD_GOOGLE_BASEBOARD_BROX +config PL4_LIMIT_FOR_CRITICAL_BAT_BOOT + int + default 9 + help + Select this if the variant has to boot even with low battery, critical battery + threshold, or when the battery is physically disconnected. PL4, which stands for + Processor Instantaneous Power or Absolute Peak Power, controls the highest power draw + from the processor at any given moment within the Pl1Tau duration. Therefore, PL4 + acts as a failsafe mechanism to set an upper threshold limit for the processor's + instantaneous power draw. For a 30W adapter, the maximum peak power is set at 9 + watts, which is 30W multiplied by 32% efficiency. This default pl4 value is set for + 30W or any higher adapter rating, such as 45W or 65W. + config DRIVER_TPM_I2C_ADDR hex default 0x50 diff --git a/src/mainboard/google/brox/romstage.c b/src/mainboard/google/brox/romstage.c index 4e88eca617..ced918457d 100644 --- a/src/mainboard/google/brox/romstage.c +++ b/src/mainboard/google/brox/romstage.c @@ -2,6 +2,7 @@ #include <baseboard/gpio.h> #include <baseboard/variants.h> +#include <ec/google/chromeec/ec.h> #include <fsp/api.h> #include <gpio.h> #include <soc/romstage.h> @@ -19,6 +20,14 @@ void mainboard_memory_init_params(FSPM_UPD *memupd) const struct pad_config *pads; size_t pads_num; + /* If battery is not present - Boot with maximum non-turbo frequency */ + if (CONFIG(EC_GOOGLE_CHROMEEC) && + !google_chromeec_is_battery_present_and_above_critical_threshold()) { + FSP_M_CONFIG *mem_cfg = &memupd->FspmConfig; + mem_cfg->BootFrequency = MAX_NONTURBO_PERFORMANCE; + printk(BIOS_DEBUG, "Boot Frequency is set to %u\n", mem_cfg->BootFrequency); + } + memcfg_init(memupd, mem_config, &spd_info, half_populated); pads = variant_romstage_gpio_table(&pads_num); diff --git a/src/mainboard/google/brox/variants/baseboard/brox/ramstage.c b/src/mainboard/google/brox/variants/baseboard/brox/ramstage.c index 038255f98e..85c3c488fa 100644 --- a/src/mainboard/google/brox/variants/baseboard/brox/ramstage.c +++ b/src/mainboard/google/brox/variants/baseboard/brox/ramstage.c @@ -42,13 +42,27 @@ static bool get_sku_index(const struct cpu_power_limits *limits, size_t num_entr } if (i == num_entries) { - printk(BIOS_ERR, "Cannot find correct brox sku index (mchid = %u).\n", mchid); + printk(BIOS_ERR, "Cannot find brox sku index (mchid = %u)\n", mchid); return false; } return true; } +static void variant_pl4_override(struct soc_power_limits_config *config, + const struct cpu_power_limits *limits, size_t brox_idx) +{ + if (!config->tdp_pl4) + return; + + /* limiting PL4 value for battery disconnected or below critical threshold */ + if (CONFIG_PL4_LIMIT_FOR_CRITICAL_BAT_BOOT && + (!google_chromeec_is_battery_present_and_above_critical_threshold())) + config->tdp_pl4 = CONFIG_PL4_LIMIT_FOR_CRITICAL_BAT_BOOT; + else + config->tdp_pl4 = DIV_ROUND_UP(limits[brox_idx].pl4_power, MILLIWATTS_TO_WATTS); +} + void variant_update_power_limits(const struct cpu_power_limits *limits, size_t num_entries) { const struct device *policy_dev; @@ -61,30 +75,33 @@ void variant_update_power_limits(const struct cpu_power_limits *limits, size_t n if (!num_entries) return; - policy_dev = DEV_PTR(dptf_policy); - if (!policy_dev) - return; - if (!get_sku_index(limits, num_entries, &intel_idx, &brox_idx)) return; - config = policy_dev->chip_info; - settings = &config->controls.power_limits; conf = config_of_soc(); soc_config = &conf->power_limits_config[intel_idx]; + variant_pl4_override(soc_config, limits, brox_idx); + + policy_dev = DEV_PTR(dptf_policy); + if (!policy_dev) { + printk(BIOS_INFO, "DPTF policy not set\n"); + return; + } + config = policy_dev->chip_info; + settings = &config->controls.power_limits; settings->pl1.min_power = limits[brox_idx].pl1_min_power; settings->pl1.max_power = limits[brox_idx].pl1_max_power; settings->pl2.min_power = limits[brox_idx].pl2_min_power; settings->pl2.max_power = limits[brox_idx].pl2_max_power; if (soc_config->tdp_pl2_override != 0) { - settings->pl2.max_power = soc_config->tdp_pl2_override * 1000; + settings->pl2.max_power = soc_config->tdp_pl2_override * MILLIWATTS_TO_WATTS; settings->pl2.min_power = settings->pl2.max_power; } - if (soc_config->tdp_pl4 == 0) - soc_config->tdp_pl4 = DIV_ROUND_UP(limits[brox_idx].pl4_power, - MILLIWATTS_TO_WATTS); + printk(BIOS_INFO, "Overriding power limits PL1 (%u, %u) PL2 (%u, %u) PL4 (%u)\n", + settings->pl1.min_power, settings->pl1.max_power, settings->pl2.min_power, + settings->pl2.max_power, soc_config->tdp_pl4); } /* @@ -138,7 +155,8 @@ void variant_update_psys_power_limits(const struct cpu_power_limits *limits, watts = ((u32)current_ma * volts_mv) / 1000000; } /* If battery is present and has enough charge, add discharge rate */ - if (CONFIG(EC_GOOGLE_CHROMEEC) && google_chromeec_is_battery_present_and_above_critical_threshold()) { + if (CONFIG(EC_GOOGLE_CHROMEEC) && + google_chromeec_is_battery_present_and_above_critical_threshold()) { watts += 65; } diff --git a/src/mainboard/google/brox/variants/brox/ramstage.c b/src/mainboard/google/brox/variants/brox/ramstage.c index 78e03caccb..aef7a00f72 100644 --- a/src/mainboard/google/brox/variants/brox/ramstage.c +++ b/src/mainboard/google/brox/variants/brox/ramstage.c @@ -33,16 +33,6 @@ const struct cpu_power_limits performance_efficient_limits[] = { }, }; -const struct system_power_limits sys_limits[] = { - /* SKU_ID, TDP (Watts), psys_pl2 (Watts) */ - { PCI_DID_INTEL_RPL_P_ID_3, 15, 60 }, - { PCI_DID_INTEL_RPL_P_ID_4, 15, 60 }, -}; - -const struct psys_config psys_config = { - .efficiency = 86, -}; - void __weak variant_devtree_update(void) { uint32_t board_version = board_id(); @@ -52,7 +42,6 @@ void __weak variant_devtree_update(void) size_t limits_size = ARRAY_SIZE(performance_efficient_limits); variant_update_power_limits(limits, limits_size); - variant_update_psys_power_limits(limits, sys_limits, limits_size, &psys_config); /* Disable I2C bus device for Touchscreen */ if (board_version >= 1) { |