/* SPDX-License-Identifier: GPL-2.0-only */ #include <boardid.h> #include <bootmode.h> #include <console/console.h> #include <device/device.h> #include <device/mmio.h> #include <ec/google/chromeec/ec.h> #include <gpio.h> #include <soc/bl31.h> #include <soc/display.h> #include <soc/dpm.h> #include <soc/i2c.h> #include <soc/msdc.h> #include <soc/mtcmos.h> #include <soc/pcie.h> #include <soc/spm.h> #include <soc/usb.h> #include <types.h> #include "gpio.h" /* GPIO to schematics names */ #define GPIO_AP_EDP_BKLTEN GPIO(DGI_D5) #define GPIO_BL_PWM_1V8 GPIO(DISP_PWM0) #define GPIO_EDP_HPD_1V8 GPIO(GPIO_07) #define GPIO_EN_PP3300_DISP_X GPIO(I2SO1_D2) bool mainboard_needs_pcie_init(void) { uint32_t sku = sku_id(); if (sku == CROS_SKU_UNKNOWN) { printk(BIOS_WARNING, "Unknown SKU (%#x); assuming PCIe", sku); return true; } else if (sku == CROS_SKU_UNPROVISIONED) { printk(BIOS_WARNING, "Unprovisioned SKU (%#x); assuming PCIe", sku); return true; } /* * All cherry boards share the same SKU encoding. Therefore there is no need to check * the board here. * - BIT(1): NVMe (PCIe) * - BIT(3): UFS (which takes precedence over BIT(1)) */ if (sku & BIT(3)) return false; if (sku & BIT(1)) return true; /* Otherwise, eMMC */ return false; } /* Set up backlight control pins as output pin and power-off by default */ static void configure_backlight(void) { gpio_output(GPIO_AP_EDP_BKLTEN, 0); gpio_output(GPIO_BL_PWM_1V8, 0); } static void power_on_panel(void) { /* Default power sequence for most panels. */ gpio_set_pull(GPIO_EDP_HPD_1V8, GPIO_PULL_ENABLE, GPIO_PULL_UP); gpio_set_mode(GPIO_EDP_HPD_1V8, 2); gpio_output(GPIO_EN_PP3300_DISP_X, 1); } static struct panel_description panel = { .configure_backlight = configure_backlight, .power_on = power_on_panel, .disp_path = DISP_PATH_EDP, .orientation = LB_FB_ORIENTATION_NORMAL, }; struct panel_description *get_active_panel(void) { return &panel; } static void configure_i2s(void) { /* Audio PWR */ mtcmos_audio_power_on(); mtcmos_protect_audio_bus(); /* SoC I2S */ gpio_set_mode(GPIO(GPIO_02), PAD_GPIO_02_FUNC_TDMIN_LRCK); gpio_set_mode(GPIO(GPIO_03), PAD_GPIO_03_FUNC_TDMIN_BCK); gpio_set_mode(GPIO(I2SO2_D0), PAD_I2SO2_D0_FUNC_I2SO2_D0); } static void configure_audio(void) { if (CONFIG(CHERRY_USE_RT1011) || CONFIG(CHERRY_USE_MAX98390)) mtk_i2c_bus_init(I2C2, I2C_SPEED_FAST); if (CONFIG(CHERRY_USE_MAX98390)) configure_i2s(); } static void mainboard_init(struct device *dev) { if (display_init_required()) mtk_display_init(); else printk(BIOS_INFO, "%s: Skipped display initialization\n", __func__); mtk_msdc_configure_emmc(true); mtk_msdc_configure_sdcard(); setup_usb_host(); configure_audio(); if (dpm_init()) printk(BIOS_ERR, "dpm init failed, DVFS may not work\n"); if (spm_init()) printk(BIOS_ERR, "spm init failed, system suspend may not work\n"); if (CONFIG(ARM64_USE_ARM_TRUSTED_FIRMWARE)) register_reset_to_bl31(GPIO_RESET.id, true); } static void mainboard_enable(struct device *dev) { dev->ops->init = &mainboard_init; } struct chip_operations mainboard_ops = { .enable_dev = mainboard_enable, };