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| author | Stefano Babic <sbabic@denx.de> | 2010-10-21 10:34:39 +0200 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2010-10-22 00:05:05 +0200 |
| commit | a0152c4ba1ea052df2c3303195d252b86cbfc121 (patch) | |
| tree | 0c344b73b018e7b5fff2143822d481096adbc800 /board/ttcontrol | |
| parent | 5dda7945d18077db81eb0cfdc2f9d4525e6b77b1 (diff) | |
| download | blackbird-obmc-uboot-a0152c4ba1ea052df2c3303195d252b86cbfc121.tar.gz blackbird-obmc-uboot-a0152c4ba1ea052df2c3303195d252b86cbfc121.zip | |
MX51: Add video support to vision2 board
The patch adds support for LCD to the vision2 board.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'board/ttcontrol')
| -rw-r--r-- | board/ttcontrol/vision2/vision2.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/board/ttcontrol/vision2/vision2.c b/board/ttcontrol/vision2/vision2.c index ce4cb78e98..071dad66c4 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 +653,33 @@ 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 +759,21 @@ 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" +); |
