at91sam9263ek: add lcd support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

2 files changed, 78 insertions, 1 deletions

diff --git a/arch/arm/boards/at91sam9263ek/env/bin/init_board b/arch/arm/boards/at91sam9263ek/env/bin/init_board
index ae2ac7d766..f2e6294648 100644
--- a/arch/arm/boards/at91sam9263ek/env/bin/init_board
+++ b/arch/arm/boards/at91sam9263ek/env/bin/init_board
@@ -1,5 +1,12 @@
 #!/bin/sh
 
+splash=/env/splash.png
+
+if [ -f ${splash} -a -e /dev/fb0 ]; then
+	splash -o ${splash}
+	fb0.enable=1
+fi
+
 button_name="dfu_bp"
 button_wait=5
 
diff --git a/arch/arm/boards/at91sam9263ek/init.c b/arch/arm/boards/at91sam9263ek/init.c
index a86c0fd510..6db6a5bc12 100644
--- a/arch/arm/boards/at91sam9263ek/init.c
+++ b/arch/arm/boards/at91sam9263ek/init.c
@@ -32,7 +32,7 @@
 #include <linux/mtd/nand.h>
 #include <mach/at91_pmc.h>
 #include <mach/board.h>
-#include <mach/gpio.h>
+#include <gpio.h>
 #include <mach/io.h>
 #include <mach/at91sam9_smc.h>
 
@@ -149,6 +149,75 @@ static void ek_add_device_udc(void)
 static void ek_add_device_udc(void) {}
 #endif
 
+/*
+ * LCD Controller
+ */
+#if defined(CONFIG_DRIVER_VIDEO_ATMEL)
+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;
+}
+
+static struct fb_videomode at91_tft_vga_modes[] = {
+	{
+		.name		= "TX09D50VM1CCA @ 60",
+		.refresh	= 60,
+		.xres		= 240,		.yres		= 320,
+		.pixclock	= KHZ2PICOS(4965),
+
+		.left_margin	= 1,		.right_margin	= 33,
+		.upper_margin	= 1,		.lower_margin	= 0,
+		.hsync_len	= 5,		.vsync_len	= 1,
+
+		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+};
+
+#define AT91SAM9263_DEFAULT_LCDCON2 	(ATMEL_LCDC_MEMOR_LITTLE \
+					| ATMEL_LCDC_DISTYPE_TFT \
+					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
+
+static void at91_lcdc_power_control(int on)
+{
+	gpio_set_value(AT91_PIN_PA30, 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		= AT91SAM9263_DEFAULT_LCDCON2,
+	.guard_time			= 1,
+	.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_PA30, "lcdc_power"))
+		return;
+
+	at91_add_device_lcdc(&ek_lcdc_data);
+}
+
+#else
+static void ek_add_device_lcdc(void) {}
+#endif
+
 static void __init ek_add_device_buttons(void)
 {
 	at91_set_gpio_input(AT91_PIN_PC5, 1);
@@ -184,6 +253,7 @@ static int at91sam9263ek_devices_init(void)
 	ek_device_add_leds();
 	ek_add_device_udc();
 	ek_add_device_buttons();
+	ek_add_device_lcdc();
 
 	if (IS_ENABLED(CONFIG_DRIVER_CFI) && cdev_by_name("nor0")) {
 		devfs_add_partition("nor0", 0x00000, 0x40000, DEVFS_PARTITION_FIXED, "self");