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https://github.com/AsahiLinux/u-boot
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am335x, guardian: Enable panel driver Himax HX8238D
- Enable lcd controller - Display splash screen Signed-off-by: Gireesh Hiremath <Gireesh.Hiremath@in.bosch.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210611161350.2141-16-Gireesh.Hiremath@in.bosch.com
This commit is contained in:
Gireesh Hiremath
Lokesh Vutla
parent
e81e8af98f
commit
9cd380ef5f
6 changed files with 119 additions and 3 deletions
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@ -42,6 +42,17 @@
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u-boot,dm-pre-reloc;
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};
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&spi0 {
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lcd0: display@0 {
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compatible = "himax,hx8238d";
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pinctrl-names = "default";
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pinctrl-0 = <&lcd0_pins>;
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reg = <0>;
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label = "lcd";
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spi-max-frequency = <100000>;
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};
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};
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&uart0 {
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u-boot,dm-pre-reloc;
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};
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@ -87,7 +87,7 @@
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ac-bias = <255>;
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ac-bias-intrpt = <0>;
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dma-burst-sz = <16>;
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bpp = <24>;
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bpp = <16>;
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bus-width = <16>;
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fdd = <0x80>;
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sync-edge = <0>;
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@ -247,6 +247,12 @@
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&lcdc {
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blue-and-red-wiring = "crossed";
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status = "okay";
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port {
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lcdc_0: endpoint@0 {
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remote-endpoint = <0>;
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};
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};
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};
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&mmc1 {
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@ -95,6 +95,8 @@ config TARGET_AM335X_GUARDIAN
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select DM_SERIAL
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select DM_GPIO
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select DM_USB
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select DM_VIDEO
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select DM_PANEL_HX8238D
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config TARGET_AM335X_SL50
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bool "Support am335x_sl50"
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@ -26,12 +26,16 @@
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#include <asm/arch/gpio.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/mem-guardian.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/omap.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/emif.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <jffs2/load_kernel.h>
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#include <mtd.h>
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#include <nand.h>
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#include <video.h>
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#include <video_console.h>
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#include "board.h"
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DECLARE_GLOBAL_DATA_PTR;
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@ -250,13 +254,94 @@ void lcdbacklight_en(void)
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brightness != 0 ? 0x0A : 0x02, 0xFF);
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}
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#if IS_ENABLED(CONFIG_AM335X_LCD)
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static void splash_screen(void)
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{
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struct udevice *video_dev;
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struct udevice *console_dev;
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struct video_priv *vid_priv;
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struct mtd_info *mtd;
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size_t len;
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int ret;
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struct mtd_device *mtd_dev;
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struct part_info *part;
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u8 pnum;
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ret = uclass_get_device(UCLASS_VIDEO, 0, &video_dev);
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if (ret != 0) {
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debug("video device not found\n");
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goto exit;
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}
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vid_priv = dev_get_uclass_priv(video_dev);
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mtdparts_init();
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if (find_dev_and_part(SPLASH_SCREEN_NAND_PART, &mtd_dev, &pnum, &part)) {
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debug("Could not find nand partition\n");
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goto splash_screen_text;
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}
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mtd = get_nand_dev_by_index(mtd_dev->id->num);
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if (!mtd) {
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debug("MTD partition is not valid\n");
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goto splash_screen_text;
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}
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len = SPLASH_SCREEN_BMP_FILE_SIZE;
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ret = nand_read_skip_bad(mtd, part->offset, &len, NULL,
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SPLASH_SCREEN_BMP_FILE_SIZE,
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(u_char *)SPLASH_SCREEN_BMP_LOAD_ADDR);
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if (ret != 0) {
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debug("Reading NAND partition failed\n");
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goto splash_screen_text;
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}
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ret = video_bmp_display(video_dev, SPLASH_SCREEN_BMP_LOAD_ADDR, 0, 0, false);
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if (ret != 0) {
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debug("No valid bmp image found!!\n");
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goto splash_screen_text;
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} else {
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goto exit;
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}
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splash_screen_text:
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vid_priv->colour_fg = CONSOLE_COLOR_RED;
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vid_priv->colour_bg = CONSOLE_COLOR_BLACK;
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if (!uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &console_dev)) {
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debug("Found console\n");
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vidconsole_position_cursor(console_dev, 17, 7);
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vidconsole_put_string(console_dev, SPLASH_SCREEN_TEXT);
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} else {
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debug("No console device found\n");
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}
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exit:
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return;
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}
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#endif /* CONFIG_AM335X_LCD */
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int board_late_init(void)
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{
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int ret;
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struct udevice *cdev;
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#ifdef CONFIG_LED_GPIO
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led_default_state();
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#endif
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set_bootmode_env();
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ret = uclass_get_device(UCLASS_PANEL, 0, &cdev);
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if (ret) {
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debug("video panel not found: %d\n", ret);
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return ret;
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}
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lcdbacklight_en();
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if (IS_ENABLED(CONFIG_AM335X_LCD))
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splash_screen();
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return 0;
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}
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#endif /* CONFIG_BOARD_LATE_INIT */
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@ -28,8 +28,9 @@ static struct module_pin_mux i2c0_pin_mux[] = {
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static struct module_pin_mux guardian_interfaces_pin_mux[] = {
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{OFFSET(mcasp0_ahclkx), (MODE(7) | PULLDOWN_EN)},
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{OFFSET(mii1_txen), (MODE(7) | PULLDOWN_EN)},
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{OFFSET(mcasp0_aclkx), (MODE(7) | PULLUP_EN)},
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{OFFSET(mii1_txd0), (MODE(7) | PULLUP_EN)},
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{OFFSET(mdio_clk), (MODE(7) | PULLUP_EN)},
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{OFFSET(uart1_rxd), (MODE(7) | RXACTIVE | PULLUDDIS)},
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{OFFSET(uart1_txd), (MODE(7) | PULLUDDIS)},
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{OFFSET(mii1_crs), (MODE(7) | PULLDOWN_EN)},
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@ -82,6 +82,17 @@
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#endif /* ! CONFIG_SPL_BUILD */
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#define CONFIG_BMP_16BPP
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#define SPLASH_SCREEN_NAND_PART "nand0,10"
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#define SPLASH_SCREEN_BMP_FILE_SIZE 0x26000
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#define SPLASH_SCREEN_BMP_LOAD_ADDR 0x82000000
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#define SPLASH_SCREEN_TEXT "U-Boot"
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/* BGR 16Bit Color Definitions */
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#define CONSOLE_COLOR_BLACK 0x0000
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#define CONSOLE_COLOR_WHITE 0xFFFF
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#define CONSOLE_COLOR_RED 0x001F
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/* NS16550 Configuration */
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#define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */
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#define CONFIG_SYS_NS16550_COM2 0x48022000 /* UART1 */
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