| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <bl31.h> |
| #include <boardid.h> |
| #include <bootmode.h> |
| #include <console/console.h> |
| #include <delay.h> |
| #include <device/device.h> |
| #include <device/mmio.h> |
| #include <ec/google/chromeec/ec.h> |
| #include <edid.h> |
| #include <framebuffer_info.h> |
| #include <gpio.h> |
| #include <soc/ddp.h> |
| #include <soc/dpm.h> |
| #include <soc/dptx.h> |
| #include <soc/gpio.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" |
| |
| #include <arm-trusted-firmware/include/export/plat/mediatek/common/plat_params_exp.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; |
| } |
| |
| static void register_reset_to_bl31(void) |
| { |
| static struct bl_aux_param_gpio param_reset = { |
| .h = { .type = BL_AUX_PARAM_MTK_RESET_GPIO }, |
| .gpio = { .polarity = ARM_TF_GPIO_LEVEL_HIGH }, |
| }; |
| |
| param_reset.gpio.index = GPIO_RESET.id; |
| register_bl31_aux_param(¶m_reset.h); |
| } |
| |
| /* Set up backlight control pins as output pin and power-off by default */ |
| static void configure_panel_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 bool configure_display(void) |
| { |
| struct edid edid; |
| struct fb_info *info; |
| const char *name; |
| |
| printk(BIOS_INFO, "%s: Starting display initialization\n", __func__); |
| |
| mtcmos_display_power_on(); |
| mtcmos_protect_display_bus(); |
| configure_panel_backlight(); |
| power_on_panel(); |
| |
| mtk_ddp_init(); |
| mdelay(200); |
| |
| if (mtk_edp_init(&edid) < 0) { |
| printk(BIOS_ERR, "%s: Failed to initialize eDP\n", __func__); |
| return false; |
| } |
| name = edid.ascii_string; |
| if (name[0] == '\0') |
| name = "unknown name"; |
| printk(BIOS_INFO, "%s: '%s %s' %dx%d@%dHz\n", __func__, |
| edid.manufacturer_name, name, edid.mode.ha, edid.mode.va, |
| edid.mode.refresh); |
| |
| edid_set_framebuffer_bits_per_pixel(&edid, 32, 0); |
| |
| mtk_ddp_mode_set(&edid); |
| info = fb_new_framebuffer_info_from_edid(&edid, (uintptr_t)0); |
| if (info) |
| fb_set_orientation(info, LB_FB_ORIENTATION_NORMAL); |
| |
| return true; |
| } |
| |
| 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()) |
| configure_display(); |
| 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"); |
| |
| register_reset_to_bl31(); |
| } |
| |
| static void mainboard_enable(struct device *dev) |
| { |
| dev->ops->init = &mainboard_init; |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .name = CONFIG_MAINBOARD_PART_NUMBER, |
| .enable_dev = mainboard_enable, |
| }; |