diff options
Diffstat (limited to 'src/mainboard/google/oak/mainboard.c')
| -rw-r--r-- | src/mainboard/google/oak/mainboard.c | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/src/mainboard/google/oak/mainboard.c b/src/mainboard/google/oak/mainboard.c index e99a5c02de..6bd42e3686 100644 --- a/src/mainboard/google/oak/mainboard.c +++ b/src/mainboard/google/oak/mainboard.c @@ -17,12 +17,18 @@ #include <arch/io.h> #include <boardid.h> #include <boot/coreboot_tables.h> +#include <bootmode.h> +#include <console/console.h> #include <delay.h> #include <device/device.h> +#include <drivers/parade/ps8640/ps8640.h> +#include <edid.h> #include <elog.h> #include <gpio.h> #include <soc/da9212.h> +#include <soc/ddp.h> +#include <soc/dsi.h> #include <soc/i2c.h> #include <soc/mt6311.h> #include <soc/mt6391.h> @@ -146,6 +152,47 @@ static void configure_backlight(void) gpio_output(PAD_PCM_TX, 0); /* PANEL_POWER_EN */ } +static void display_startup(void) +{ + struct edid edid; + u8 i2c_bus; + int ret; + + switch (board_id()) { + case 0: + case 1: + i2c_bus = 3; + break; + default: + i2c_bus = 4; + break; + } + mtk_i2c_bus_init(i2c_bus); + + ps8640_init(i2c_bus, 0x18); + if (ps8640_get_edid(i2c_bus, 0x18, &edid)) { + printk(BIOS_ERR, "Can't get panel's edid\n"); + return; + } + + edid.x_resolution = edid.mode.ha; + edid.y_resolution = edid.mode.va; + edid.bytes_per_line = edid.mode.ha * edid.framebuffer_bits_per_pixel / + 8; + + mtk_ddp_init(); + ret = mtk_dsi_init(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE, + MIPI_DSI_FMT_RGB888, 4, &edid); + if (ret < 0) { + printk(BIOS_ERR, "dsi init fail\n"); + return; + } + + mtk_ddp_mode_set(&edid); + + set_vbe_mode_info_valid(&edid, (uintptr_t)0); +} + static void mainboard_init(device_t dev) { /* TP_SHIFT_EN: Enables the level shifter for I2C bus 4 (TPAD), which @@ -158,7 +205,12 @@ static void mainboard_init(device_t dev) gpio_input(PAD_EINT1); /* SD_DET */ configure_audio(); - configure_backlight(); + if (display_init_required()) { + configure_backlight(); + display_startup(); + } else { + printk(BIOS_INFO, "Skipping display init.\n"); + } configure_usb(); configure_usb_hub(); configure_ext_buck(); |