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Commit 51708748 authored by Andrew Victor's avatar Andrew Victor Committed by Russell King
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[ARM] 4610/2: AT91: Support for STN LCD on SAM9261-EK board. 



Add STN LCD support on the Atmel AT91SAM9261-EK board.
Uses a black and white screen from Hitachi: SP06Q002.

Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@rfo.atmel.com>
Signed-off-by: default avatarAndrew Victor <andrew@sanpeople.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent b66545e7

arch/arm/mach-at91/board-sam9261ek.c

+69 −7
Original line number Diff line number Diff line
@@ -280,6 +280,68 @@ static struct spi_board_info ek_spi_devices[] = { 
 * LCD Controller

 */

#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)



#if defined(CONFIG_FB_ATMEL_STN)



/* STN */

static struct fb_videomode at91_stn_modes[] = {

        {

		.name           = "SP06Q002 @ 75",

		.refresh        = 75,

		.xres           = 320,          .yres           = 240,

		.pixclock       = KHZ2PICOS(1440),



		.left_margin    = 1,            .right_margin   = 1,

		.upper_margin   = 0,            .lower_margin   = 0,

		.hsync_len      = 1,            .vsync_len      = 1,



		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,

		.vmode          = FB_VMODE_NONINTERLACED,

        },

};



static struct fb_monspecs at91fb_default_stn_monspecs = {

        .manufacturer   = "HIT",

        .monitor        = "SP06Q002",



        .modedb         = at91_stn_modes,

        .modedb_len     = ARRAY_SIZE(at91_stn_modes),

        .hfmin          = 15000,

        .hfmax          = 64000,

        .vfmin          = 50,

        .vfmax          = 150,

};



#define AT91SAM9261_DEFAULT_STN_LCDCON2	(ATMEL_LCDC_MEMOR_LITTLE \

					| ATMEL_LCDC_DISTYPE_STNMONO \

					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \

					| ATMEL_LCDC_IFWIDTH_4 \

					| ATMEL_LCDC_SCANMOD_SINGLE)



static void at91_lcdc_stn_power_control(int on)

{

	/* backlight */

	if (on) {	/* power up */

		at91_set_gpio_value(AT91_PIN_PC14, 0);

		at91_set_gpio_value(AT91_PIN_PC15, 0);

	} else {	/* power down */

		at91_set_gpio_value(AT91_PIN_PC14, 1);

		at91_set_gpio_value(AT91_PIN_PC15, 1);

	}

}



static struct atmel_lcdfb_info __initdata ek_lcdc_data = {

	.default_bpp			= 1,

	.default_dmacon			= ATMEL_LCDC_DMAEN,

	.default_lcdcon2		= AT91SAM9261_DEFAULT_STN_LCDCON2,

	.default_monspecs		= &at91fb_default_stn_monspecs,

	.atmel_lcdfb_power_control	= at91_lcdc_stn_power_control,

	.guard_time			= 1,

};



#else



/* TFT */

static struct fb_videomode at91_tft_vga_modes[] = {

	{

	        .name           = "TX09D50VM1CCA @ 60",
@@ -296,7 +358,7 @@ static struct fb_videomode at91_tft_vga_modes[] = { 
	},

};



static struct fb_monspecs at91fb_default_monspecs = {

static struct fb_monspecs at91fb_default_tft_monspecs = {

	.manufacturer	= "HIT",

	.monitor        = "TX09D50VM1CCA",
@@ -308,11 +370,11 @@ static struct fb_monspecs at91fb_default_monspecs = { 
	.vfmax		= 150,

};



#define AT91SAM9261_DEFAULT_LCDCON2 	(ATMEL_LCDC_MEMOR_LITTLE \

#define AT91SAM9261_DEFAULT_TFT_LCDCON2	(ATMEL_LCDC_MEMOR_LITTLE \

					| ATMEL_LCDC_DISTYPE_TFT    \

					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)



static void at91_lcdc_power_control(int on)

static void at91_lcdc_tft_power_control(int on)

{

	if (on)

		at91_set_gpio_value(AT91_PIN_PA12, 0);	/* power up */
@@ -320,15 +382,15 @@ static void at91_lcdc_power_control(int on) 
		at91_set_gpio_value(AT91_PIN_PA12, 1);	/* power down */

}



/* Driver datas */

static struct atmel_lcdfb_info __initdata ek_lcdc_data = {

	.default_bpp			= 16,

	.default_dmacon			= ATMEL_LCDC_DMAEN,

	.default_lcdcon2		= AT91SAM9261_DEFAULT_LCDCON2,

	.default_monspecs		= &at91fb_default_monspecs,

	.atmel_lcdfb_power_control	= at91_lcdc_power_control,

	.default_lcdcon2		= AT91SAM9261_DEFAULT_TFT_LCDCON2,

	.default_monspecs		= &at91fb_default_tft_monspecs,

	.atmel_lcdfb_power_control	= at91_lcdc_tft_power_control,

	.guard_time			= 1,

};

#endif



#else

static struct atmel_lcdfb_info __initdata ek_lcdc_data;