minix/u-boot
1
0
Fork 0
mirror of https://github.com/Stichting-MINIX-Research-Foundation/u-boot.git synced 2025-09-12 13:35:21 -04:00
Code Issues Packages Projects Releases Wiki Activity

MX51: Add video support to vision2 board

Browse Source 
The patch adds support for LCD to the vision2 board.

Signed-off-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Stefano Babic 2010-10-21 10:34:39 +02:00 committed by Anatolij Gustschin
parent 5dda7945d1
commit a0152c4ba1
2 changed files with 82 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
board/ttcontrol/vision2/vision2.c
View File

@ -37,14 +37,34 @@
#include <fsl_esdhc.h> #include <fsl_esdhc.h>
#include <fsl_pmic.h> #include <fsl_pmic.h>
#include <mc13892.h> #include <mc13892.h>
#include <linux/fb.h>
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
static u32 system_rev; static u32 system_rev;
extern int mx51_fb_init(struct fb_videomode *mode);
#ifdef CONFIG_HW_WATCHDOG #ifdef CONFIG_HW_WATCHDOG
#include <watchdog.h> #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) void hw_watchdog_reset(void)
{ {
int val; int val;
@ -423,6 +443,9 @@ static void setup_gpios(void)
mxc_request_iomux(MX51_PIN_CSPI1_RDY, IOMUX_CONFIG_ALT3); mxc_request_iomux(MX51_PIN_CSPI1_RDY, IOMUX_CONFIG_ALT3);
mxc_iomux_set_pad(MX51_PIN_CSPI1_RDY, 0x82); 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 * Set GPIO1_4 to high and output; it is used to reset
* the system on reboot * the system on reboot
@ -630,6 +653,33 @@ int board_early_init_f(void)
return 0; 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) int board_init(void)
{ {
#ifdef CONFIG_SYS_ARM_WITHOUT_RELOC #ifdef CONFIG_SYS_ARM_WITHOUT_RELOC
@ -709,3 +759,21 @@ int checkboard(void)
return 0; 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"
);

14
include/configs/vision2.h
View File

@ -211,4 +211,18 @@
#define CONFIG_SYS_NO_FLASH #define CONFIG_SYS_NO_FLASH
/*
* 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
#endif /* __CONFIG_H */ #endif /* __CONFIG_H */