/* SPDX-License-Identifier: GPL-2.0-only */ #include <bl31.h> #include <bootmode.h> #include <console/console.h> #include <delay.h> #include <device/device.h> #include <device/mmio.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/spm.h> #include <soc/usb.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) 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, };