Sudheer Amrabadi has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/64885 )
Change subject: mb/google/herobrine: Add support to enable display ......................................................................
mb/google/herobrine: Add support to enable display
This change adds support to enable edp gpios, display init for herobrine.
Change-Id: I01dbe23afbb3d41d87f24cb7dcfa456cb7f133fb Signed-off-by: Vinod Polimera quic_vpolimer@quicinc.com --- M src/mainboard/google/herobrine/board.h M src/mainboard/google/herobrine/mainboard.c 2 files changed, 40 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/85/64885/1
diff --git a/src/mainboard/google/herobrine/board.h b/src/mainboard/google/herobrine/board.h index 0e06cd9..4c2aad6 100644 --- a/src/mainboard/google/herobrine/board.h +++ b/src/mainboard/google/herobrine/board.h @@ -49,6 +49,10 @@ #define GPIO_EN_FP_RAILS dead_code_t(gpio_t) #endif
+/* Display specific gpios */ +#define GPIO_PANEL_POWER_ON GPIO(80) +#define GPIO_PANEL_HPD GPIO(60) + void setup_chromeos_gpios(void);
#endif /* _COREBOOT_SRC_MAINBOARD_GOOGLE_HEROBRINE_BOARD_H_ */ diff --git a/src/mainboard/google/herobrine/mainboard.c b/src/mainboard/google/herobrine/mainboard.c index 5da78e6..a5e06f1 100644 --- a/src/mainboard/google/herobrine/mainboard.c +++ b/src/mainboard/google/herobrine/mainboard.c @@ -1,7 +1,11 @@ /* SPDX-License-Identifier: GPL-2.0-only */
#include "board.h" +#include <bootmode.h> +#include <boardid.h> #include <bootblock_common.h> +#include <edid.h> +#include <console/console.h> #include <device/device.h> #include <device/mmio.h> #include <soc/pcie.h> @@ -11,6 +15,9 @@ #include <soc/qcom_qup_se.h> #include <soc/usb/usb_common.h> #include <soc/usb/snps_usb_phy.h> +#include <soc/display/mdssreg.h> +#include <soc/display/edp_ctrl.h> +#include <delay.h>
static struct usb_board_data usb0_board_data = { .parameter_override_x0 = 0xe6, @@ -63,6 +70,34 @@ GPIO_NO_PULL, GPIO_16MA, GPIO_OUTPUT); }
+static void edp_configure_gpios(void) +{ + /* Panel power on gpio enable*/ + gpio_output(GPIO_PANEL_POWER_ON, 1); + + /* Panel HPD GPIO enable */ + gpio_input_pulldown(GPIO_PANEL_HPD); +} + +static void display_startup(void) +{ + struct edid ed; + + if (display_init_required()) { + enable_mdss_clk(); + edp_configure_gpios(); + mdelay(250); /* Delay for the panel to be up */ + if (edp_ctrl_init(&ed) == CB_SUCCESS) { + mdp_dsi_video_config(&ed); + mdp_dsi_video_on(); + edid_set_framebuffer_bits_per_pixel(&ed, 32, 0); + fb_new_framebuffer_info_from_edid(&ed, (uintptr_t)0); + } + } else { + printk(BIOS_INFO, "Skipping display init.\n"); + } +} + static void mainboard_init(struct device *dev) { /* Configure clock for eMMC */ @@ -122,6 +157,7 @@
/* Set up PCIe in RC mode */ setup_pcie(); + display_startup(); }
static void mainboard_enable(struct device *dev)