The patch adds support for LCD to the vision board.
Signed-off-by: Stefano Babic <sba...@denx.de>
---
board/ttcontrol/vision2/vision2.c | 69 +++++++++++++++++++++++++++++++++++++
include/configs/vision2.h | 15 ++++++++
2 files changed, 84 insertions(+), 0 deletions(-)
diff --git a/board/ttcontrol/vision2/vision2.c
b/board/ttcontrol/vision2/vision2.c
index c991ee2..c3e6c70 100644
--- a/board/ttcontrol/vision2/vision2.c
+++ b/board/ttcontrol/vision2/vision2.c
@@ -37,14 +37,34 @@
#include <fsl_esdhc.h>
#include <fsl_pmic.h>
#include <mc13892.h>
+#include <linux/fb.h>
DECLARE_GLOBAL_DATA_PTR;
static u32 system_rev;
+extern int mx51_fb_init(struct fb_videomode *mode);
+
#ifdef CONFIG_HW_WATCHDOG
#include <watchdog.h>
+static struct fb_videomode nec_nl6448bc26_09c = {
+ "NEC_NL6448BC26-09C",
+ 60, /* Refresh */
+ 640, /* xres */
+ 480, /* yres */
+ 37650, /* pixclock = 26.56Mhz */
+ 48, /* left margin */
+ 16, /* right margin */
+ 31, /* upper margin */
+ 12, /* lower margin */
+ 96, /* hsync-len */
+ 2, /* vsync-len */
+ 0, /* sync */
+ FB_VMODE_NONINTERLACED, /* vmode */
+ 0, /* flag */
+};
+
void hw_watchdog_reset(void)
{
int val;
@@ -423,6 +443,9 @@ static void setup_gpios(void)
mxc_request_iomux(MX51_PIN_CSPI1_RDY, IOMUX_CONFIG_ALT3);
mxc_iomux_set_pad(MX51_PIN_CSPI1_RDY, 0x82);
+ /* PWM Output GPIO1_2 */
+ mxc_request_iomux(MX51_PIN_GPIO1_2, IOMUX_CONFIG_ALT1);
+
/*
* Set GPIO1_4 to high and output; it is used to reset
* the system on reboot
@@ -630,6 +653,34 @@ int board_early_init_f(void)
return 0;
}
+static void backlight(int on)
+{
+ if (on) {
+ mxc_gpio_set(65, 1);
+ udelay(10000);
+ mxc_gpio_set(68, 1);
+ } else {
+ mxc_gpio_set(65, 0);
+ mxc_gpio_set(68, 0);
+ }
+}
+
+void lcd_enable(void)
+{
+ int ret;
+
+ mxc_request_iomux(MX51_PIN_DI1_PIN2, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_DI1_PIN3, IOMUX_CONFIG_ALT0);
+
+ mxc_gpio_set(2, 1);
+ mxc_request_iomux(MX51_PIN_GPIO1_2, IOMUX_CONFIG_ALT0);
+
+ ret = mx51_fb_init(&nec_nl6448bc26_09c);
+ if (ret) {
+ puts("LCD cannot be configured\n");
+ }
+}
+
int board_init(void)
{
#ifdef CONFIG_SYS_ARM_WITHOUT_RELOC
@@ -709,3 +760,21 @@ int checkboard(void)
return 0;
}
+int do_vision_lcd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ int on;
+
+ if (argc < 2)
+ return cmd_usage(cmdtp);
+
+ on = (strcmp(argv[1], "on") == 0);
+ backlight(on);
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ lcdbl, CONFIG_SYS_MAXARGS, 1, do_vision_lcd,
+ "Vision2 Backlight",
+ "lcdbl [on|off]\n"
+);
diff --git a/include/configs/vision2.h b/include/configs/vision2.h
index 1f73c71..5710375 100644
--- a/include/configs/vision2.h
+++ b/include/configs/vision2.h
@@ -212,6 +212,21 @@
#define CONFIG_SYS_CLKTL_CBCDR 0x19239100
/*
+ * Framebuffer and LCD
+ */
+#define CONFIG_PREBOOT
+#define CONFIG_LCD
+#define CONFIG_VIDEO_MX5
+#define CONFIG_SYS_CONSOLE_ENV_OVERWRITE
+#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#define LCD_BPP LCD_COLOR16
+#define CONFIG_SPLASH_SCREEN
+#define CONFIG_CMD_BMP
+#define CONFIG_BMP_16BPP
+#define CMD_DISPLAY
+
+/*
* NAND FLASH driver setup
*/
#define CONFIG_CMD_NAND
--
1.6.3.3
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