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-rw-r--r--src/mainboard/google/oak/Kconfig1
-rw-r--r--src/mainboard/google/oak/mainboard.c54
2 files changed, 54 insertions, 1 deletions
diff --git a/src/mainboard/google/oak/Kconfig b/src/mainboard/google/oak/Kconfig
index 3bae9f7387..79d43d4b63 100644
--- a/src/mainboard/google/oak/Kconfig
+++ b/src/mainboard/google/oak/Kconfig
@@ -21,6 +21,7 @@ config BOARD_SPECIFIC_OPTIONS
select BOARD_ID_AUTO
select BOARD_ROMSIZE_KB_4096
select COMMON_CBFS_SPI_WRAPPER
+ select DRIVER_PARADE_PS8640
select EC_GOOGLE_CHROMEEC
select EC_GOOGLE_CHROMEEC_SPI
select MAINBOARD_HAS_NATIVE_VGA_INIT
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();