diff options
Diffstat (limited to 'arch/arm/boards/at91sam9n12ek/init.c')
-rw-r--r-- | arch/arm/boards/at91sam9n12ek/init.c | 72 |
1 files changed, 71 insertions, 1 deletions
diff --git a/arch/arm/boards/at91sam9n12ek/init.c b/arch/arm/boards/at91sam9n12ek/init.c index 2fe7a1142e..a1816664f1 100644 --- a/arch/arm/boards/at91sam9n12ek/init.c +++ b/arch/arm/boards/at91sam9n12ek/init.c @@ -124,6 +124,75 @@ static void __init ek_add_device_ks8851(void) static void __init ek_add_device_ks8851(void) {} #endif /* CONFIG_DRIVER_NET_KS8851_MLL */ +#if defined(CONFIG_DRIVER_VIDEO_ATMEL_HLCD) +static int ek_gpio_request_output(int gpio, const char *name) +{ + int ret; + + ret = gpio_request(gpio, name); + if (ret) { + pr_err("%s: can not request gpio %d (%d)\n", name, gpio, ret); + return ret; + } + + ret = gpio_direction_output(gpio, 1); + if (ret) + pr_err("%s: can not configure gpio %d as output (%d)\n", name, gpio, ret); + return ret; +} + + +/* + * LCD Controller + */ +static struct fb_videomode at91_tft_vga_modes[] = { + { + .name = "QD", + .refresh = 60, + .xres = 480, .yres = 272, + .pixclock = KHZ2PICOS(9000), + + .left_margin = 8, .right_margin = 43, + .upper_margin = 4, .lower_margin = 12, + .hsync_len = 5, .vsync_len = 10, + + .sync = 0, + .vmode = FB_VMODE_NONINTERLACED, + }, +}; + +/* Default output mode is TFT 24 bit */ +#define BPP_OUT_DEFAULT_LCDCFG5 (LCDC_LCDCFG5_MODE_OUTPUT_24BPP) + +static void at91_lcdc_power_control(int on) +{ + gpio_set_value(AT91_PIN_PC25, !on); +} + +/* Driver datas */ +static struct atmel_lcdfb_platform_data ek_lcdc_data = { + .lcdcon_is_backlight = true, + .default_bpp = 16, + .default_dmacon = ATMEL_LCDC_DMAEN, + .default_lcdcon2 = BPP_OUT_DEFAULT_LCDCFG5, + .guard_time = 9, + .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB, + .atmel_lcdfb_power_control = at91_lcdc_power_control, + .mode_list = at91_tft_vga_modes, + .num_modes = ARRAY_SIZE(at91_tft_vga_modes), +}; + +static void ek_add_device_lcdc(void) +{ + if (ek_gpio_request_output(AT91_PIN_PC25, "lcdc_power")) + return; + + at91_add_device_lcdc(&ek_lcdc_data); +} +#else +static void ek_add_device_lcdc(void) {} +#endif + /* * MCI (SD/MMC) */ @@ -228,7 +297,7 @@ static void __init ek_add_device_buttons(void) static int at91sam9n12ek_mem_init(void) { - at91_add_device_sdram(128 * 1024 * 1024); + at91_add_device_sdram(0); return 0; } @@ -244,6 +313,7 @@ static int at91sam9n12ek_devices_init(void) ek_add_device_i2c(); ek_add_device_ks8851(); ek_add_device_buttons(); + ek_add_device_lcdc(); armlinux_set_bootparams((void *)(AT91_CHIPSELECT_1 + 0x100)); armlinux_set_architecture(CONFIG_MACH_AT91SAM9N12EK); |