| /* 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, |
| }; |