ramstage.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <acpi/acpi_device.h>
#include <baseboard/variants.h>
#include <console/console.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <soc/gpio_soc_defs.h>
#include <soc/pci_devs.h>
#include <soc/soc_chip.h>
#include <string.h>
#include <drivers/intel/dptf/chip.h>
#include "board_id.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 */
        /* PL2 values are for performance configuration */
        { PCI_DID_INTEL_ADL_P_ID_7, 15, 3000, 15000,  55000,  55000, 123000 },
        { PCI_DID_INTEL_ADL_P_ID_6, 15, 3000, 15000,  55000,  55000, 123000 },
        { PCI_DID_INTEL_ADL_P_ID_5, 28, 4000, 28000,  64000,  64000, 140000 },
        { PCI_DID_INTEL_ADL_P_ID_3, 28, 4000, 28000,  64000,  64000, 140000 },
        { PCI_DID_INTEL_ADL_P_ID_3, 45, 5000, 45000, 115000, 115000, 215000 },
};
 
WEAK_DEV_PTR(dptf_policy);
void variant_update_power_limits(void)
{
        const struct device *policy_dev = DEV_PTR(dptf_policy);
        if (!policy_dev)
                return;
 
        struct drivers_intel_dptf_config *config = config_of(policy_dev);
 
        uint16_t mchid = pci_s_read_config16(PCI_DEV(0, 0, 0), PCI_DEVICE_ID);
 
        u8 tdp = get_cpu_tdp();
 
        for (size_t i = 0; i < ARRAY_SIZE(limits); i++) {
                if (mchid == limits[i].mchid && tdp == limits[i].cpu_tdp) {
                        struct dptf_power_limits *settings = &config->controls.power_limits;
                        config_t *conf = config_of_soc();
                        struct soc_power_limits_config *soc_config = conf->power_limits_config;
                        settings->pl1.min_power = limits[i].pl1_min_power;
                        settings->pl1.max_power = limits[i].pl1_max_power;
                        settings->pl2.min_power = limits[i].pl2_min_power;
                        settings->pl2.max_power = limits[i].pl2_max_power;
                        soc_config->tdp_pl4 = DIV_ROUND_UP(limits[i].pl4_power,
                                                                        MILLIWATTS_TO_WATTS);
                        printk(BIOS_INFO, "Overriding power limits PL1 (%u, %u) PL2 (%u, %u) PL4 (%u)\n",
                                        limits[i].pl1_min_power,
                                        limits[i].pl1_max_power,
                                        limits[i].pl2_min_power,
                                        limits[i].pl2_max_power,
                                        limits[i].pl4_power);
                }
        }
}
 
static const struct typec_aux_bias_pads pad_config = { GPP_E23, GPP_E22 };
 
static const struct board_id_iom_port_config {
        int board_id;
        enum typec_port_index port;
} port_config[] = {
        { ADL_P_LP4_1,  TYPE_C_PORT_2 },
        { ADL_P_LP4_2,  TYPE_C_PORT_2 },
        { ADL_P_DDR4_1, TYPE_C_PORT_2 },
        { ADL_P_DDR4_2, TYPE_C_PORT_2 },
        { ADL_P_LP5_1,  TYPE_C_PORT_2 },
        { ADL_P_LP5_2,  TYPE_C_PORT_2 },
        { ADL_M_LP4,    TYPE_C_PORT_1 },
        { ADL_M_LP5,    TYPE_C_PORT_0 },
};
 
static void variant_update_typec_init_config(void)
{
        /* Skip filling aux bias gpio pads for Windows SKUs */
        if (!(CONFIG(BOARD_INTEL_ADLRVP_P_EXT_EC) || CONFIG(BOARD_INTEL_ADLRVP_M_EXT_EC)))
                return;
 
        config_t *config = config_of_soc();
        int board_id = get_board_id();
        for (int i = 0; i < ARRAY_SIZE(port_config); i++) {
                if (board_id != port_config[i].board_id)
                        continue;
 
                memcpy(&config->typec_aux_bias_pads[port_config[i].port], &pad_config,
                        sizeof(pad_config));
        }
}
 
void variant_devtree_update(void)
{
        variant_update_power_limits();
        variant_update_typec_init_config();
}