devtree.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/device.h>
#include <device/pci_def.h>
#include <option.h>
#include <types.h>
#include <variants.h>
 
#include "soc/intel/apollolake/chip.h"
 
enum cmos_power_profile get_power_profile(enum cmos_power_profile fallback)
{
        const unsigned int power_profile = get_uint_option("power_profile", fallback);
        return power_profile < NUM_POWER_PROFILES ? power_profile : fallback;
}
 
void devtree_update(void)
{
        config_t *cfg = config_of_soc();
 
        struct soc_power_limits_config *soc_conf =
                &cfg->power_limits_config;
 
        struct device *nic_dev = pcidev_on_root(0x0c, 0);
 
        /* Update PL1 & PL2 based on CMOS settings */
        switch (get_power_profile(PP_POWER_SAVER)) {
        case PP_POWER_SAVER:
                soc_conf->tdp_pl1_override = 6;
                soc_conf->tdp_pl2_override = 10;
                break;
        case PP_BALANCED:
                soc_conf->tdp_pl1_override = 10;
                soc_conf->tdp_pl2_override = 15;
                break;
        case PP_PERFORMANCE:
                soc_conf->tdp_pl1_override = 10;
                soc_conf->tdp_pl2_override = 20;
                break;
        }
 
        /* Enable/Disable Wireless based on CMOS settings */
        if (get_uint_option("wireless", 1) == 0)
                nic_dev->enabled = 0;
 
        /* Enable/Disable Webcam based on CMOS settings */
        if (get_uint_option("webcam", 1) == 0)
                cfg->usb2_port[4].enable = 0;
}