[PATCH v4 15/18] am335x, guardian: Enable panel driver Himax HX8238D
Gireesh.Hiremath at in.bosch.com
Gireesh.Hiremath at in.bosch.com
Fri Jun 11 18:13:47 CEST 2021
From: Gireesh Hiremath <Gireesh.Hiremath at in.bosch.com>
- Enable lcd controller
- Display splash screen
Signed-off-by: Gireesh Hiremath <Gireesh.Hiremath at in.bosch.com>
---
arch/arm/dts/am335x-guardian-u-boot.dtsi | 11 +++
arch/arm/dts/am335x-guardian.dts | 8 ++-
arch/arm/mach-omap2/am33xx/Kconfig | 2 +
board/bosch/guardian/board.c | 87 +++++++++++++++++++++++-
board/bosch/guardian/mux.c | 3 +-
include/configs/am335x_guardian.h | 11 +++
6 files changed, 119 insertions(+), 3 deletions(-)
diff --git a/arch/arm/dts/am335x-guardian-u-boot.dtsi b/arch/arm/dts/am335x-guardian-u-boot.dtsi
index 986f58e664..a1a7913de8 100644
--- a/arch/arm/dts/am335x-guardian-u-boot.dtsi
+++ b/arch/arm/dts/am335x-guardian-u-boot.dtsi
@@ -42,6 +42,17 @@
u-boot,dm-pre-reloc;
};
+&spi0 {
+ lcd0: display at 0 {
+ compatible = "himax,hx8238d";
+ pinctrl-names = "default";
+ pinctrl-0 = <&lcd0_pins>;
+ reg = <0>;
+ label = "lcd";
+ spi-max-frequency = <100000>;
+ };
+};
+
&uart0 {
u-boot,dm-pre-reloc;
};
diff --git a/arch/arm/dts/am335x-guardian.dts b/arch/arm/dts/am335x-guardian.dts
index 207246b4e0..69bee45848 100644
--- a/arch/arm/dts/am335x-guardian.dts
+++ b/arch/arm/dts/am335x-guardian.dts
@@ -87,7 +87,7 @@
ac-bias = <255>;
ac-bias-intrpt = <0>;
dma-burst-sz = <16>;
- bpp = <24>;
+ bpp = <16>;
bus-width = <16>;
fdd = <0x80>;
sync-edge = <0>;
@@ -247,6 +247,12 @@
&lcdc {
blue-and-red-wiring = "crossed";
status = "okay";
+
+ port {
+ lcdc_0: endpoint at 0 {
+ remote-endpoint = <0>;
+ };
+ };
};
&mmc1 {
diff --git a/arch/arm/mach-omap2/am33xx/Kconfig b/arch/arm/mach-omap2/am33xx/Kconfig
index 11e54cd293..65f43944fe 100644
--- a/arch/arm/mach-omap2/am33xx/Kconfig
+++ b/arch/arm/mach-omap2/am33xx/Kconfig
@@ -95,6 +95,8 @@ config TARGET_AM335X_GUARDIAN
select DM_SERIAL
select DM_GPIO
select DM_USB
+ select DM_VIDEO
+ select DM_PANEL_HX8238D
config TARGET_AM335X_SL50
bool "Support am335x_sl50"
diff --git a/board/bosch/guardian/board.c b/board/bosch/guardian/board.c
index 4388ef70d2..179511a670 100644
--- a/board/bosch/guardian/board.c
+++ b/board/bosch/guardian/board.c
@@ -26,12 +26,16 @@
#include <asm/arch/gpio.h>
#include <asm/arch/hardware.h>
#include <asm/arch/mem-guardian.h>
-#include <asm/arch/mmc_host_def.h>
#include <asm/arch/omap.h>
#include <asm/arch/sys_proto.h>
#include <asm/emif.h>
#include <asm/gpio.h>
#include <asm/io.h>
+#include <jffs2/load_kernel.h>
+#include <mtd.h>
+#include <nand.h>
+#include <video.h>
+#include <video_console.h>
#include "board.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -250,13 +254,94 @@ void lcdbacklight_en(void)
brightness != 0 ? 0x0A : 0x02, 0xFF);
}
+#if IS_ENABLED(CONFIG_AM335X_LCD)
+static void splash_screen(void)
+{
+ struct udevice *video_dev;
+ struct udevice *console_dev;
+ struct video_priv *vid_priv;
+ struct mtd_info *mtd;
+ size_t len;
+ int ret;
+
+ struct mtd_device *mtd_dev;
+ struct part_info *part;
+ u8 pnum;
+
+ ret = uclass_get_device(UCLASS_VIDEO, 0, &video_dev);
+ if (ret != 0) {
+ debug("video device not found\n");
+ goto exit;
+ }
+
+ vid_priv = dev_get_uclass_priv(video_dev);
+ mtdparts_init();
+
+ if (find_dev_and_part(SPLASH_SCREEN_NAND_PART, &mtd_dev, &pnum, &part)) {
+ debug("Could not find nand partition\n");
+ goto splash_screen_text;
+ }
+
+ mtd = get_nand_dev_by_index(mtd_dev->id->num);
+ if (!mtd) {
+ debug("MTD partition is not valid\n");
+ goto splash_screen_text;
+ }
+
+ len = SPLASH_SCREEN_BMP_FILE_SIZE;
+ ret = nand_read_skip_bad(mtd, part->offset, &len, NULL,
+ SPLASH_SCREEN_BMP_FILE_SIZE,
+ (u_char *)SPLASH_SCREEN_BMP_LOAD_ADDR);
+ if (ret != 0) {
+ debug("Reading NAND partition failed\n");
+ goto splash_screen_text;
+ }
+
+ ret = video_bmp_display(video_dev, SPLASH_SCREEN_BMP_LOAD_ADDR, 0, 0, false);
+ if (ret != 0) {
+ debug("No valid bmp image found!!\n");
+ goto splash_screen_text;
+ } else {
+ goto exit;
+ }
+
+splash_screen_text:
+ vid_priv->colour_fg = CONSOLE_COLOR_RED;
+ vid_priv->colour_bg = CONSOLE_COLOR_BLACK;
+
+ if (!uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &console_dev)) {
+ debug("Found console\n");
+ vidconsole_position_cursor(console_dev, 17, 7);
+ vidconsole_put_string(console_dev, SPLASH_SCREEN_TEXT);
+ } else {
+ debug("No console device found\n");
+ }
+
+exit:
+ return;
+}
+#endif /* CONFIG_AM335X_LCD */
+
int board_late_init(void)
{
+ int ret;
+ struct udevice *cdev;
+
#ifdef CONFIG_LED_GPIO
led_default_state();
#endif
set_bootmode_env();
+
+ ret = uclass_get_device(UCLASS_PANEL, 0, &cdev);
+ if (ret) {
+ debug("video panel not found: %d\n", ret);
+ return ret;
+ }
+
lcdbacklight_en();
+ if (IS_ENABLED(CONFIG_AM335X_LCD))
+ splash_screen();
+
return 0;
}
#endif /* CONFIG_BOARD_LATE_INIT */
diff --git a/board/bosch/guardian/mux.c b/board/bosch/guardian/mux.c
index 9c81f29f9f..12c3eb666f 100644
--- a/board/bosch/guardian/mux.c
+++ b/board/bosch/guardian/mux.c
@@ -28,8 +28,9 @@ static struct module_pin_mux i2c0_pin_mux[] = {
static struct module_pin_mux guardian_interfaces_pin_mux[] = {
{OFFSET(mcasp0_ahclkx), (MODE(7) | PULLDOWN_EN)},
+ {OFFSET(mii1_txen), (MODE(7) | PULLDOWN_EN)},
{OFFSET(mcasp0_aclkx), (MODE(7) | PULLUP_EN)},
- {OFFSET(mii1_txd0), (MODE(7) | PULLUP_EN)},
+ {OFFSET(mdio_clk), (MODE(7) | PULLUP_EN)},
{OFFSET(uart1_rxd), (MODE(7) | RXACTIVE | PULLUDDIS)},
{OFFSET(uart1_txd), (MODE(7) | PULLUDDIS)},
{OFFSET(mii1_crs), (MODE(7) | PULLDOWN_EN)},
diff --git a/include/configs/am335x_guardian.h b/include/configs/am335x_guardian.h
index 73248292f2..c161b93352 100644
--- a/include/configs/am335x_guardian.h
+++ b/include/configs/am335x_guardian.h
@@ -82,6 +82,17 @@
#endif /* ! CONFIG_SPL_BUILD */
+#define CONFIG_BMP_16BPP
+#define SPLASH_SCREEN_NAND_PART "nand0,10"
+#define SPLASH_SCREEN_BMP_FILE_SIZE 0x26000
+#define SPLASH_SCREEN_BMP_LOAD_ADDR 0x82000000
+#define SPLASH_SCREEN_TEXT "U-Boot"
+
+/* BGR 16Bit Color Definitions */
+#define CONSOLE_COLOR_BLACK 0x0000
+#define CONSOLE_COLOR_WHITE 0xFFFF
+#define CONSOLE_COLOR_RED 0x001F
+
/* NS16550 Configuration */
#define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */
#define CONFIG_SYS_NS16550_COM2 0x48022000 /* UART1 */
--
2.20.1
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