mx53loco: Add LCD support

Add support for CLAA07LC0ACW LCD that connects to the mx53loco board.

Configure the board to show the Linux logo on the LCD.

Also increase the size of CONFIG_SYS_MALLOC_LEN variable to take into account
the framebuffer usage.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>

board/freescale/mx53loco/mx53loco.c

@@ -39,6 +39,10 @@
 #include <pmic.h>
 #include <dialog_pmic.h>
 #include <fsl_pmic.h>
+#include <linux/fb.h>
+#include <ipu_pixfmt.h>
+
+#define MX53LOCO_LCD_POWER		(2 * 32 + 24)	/* GPIO3_24 */
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -402,10 +406,74 @@ static void clock_1GHz(void)
 		printf("CPU:   Switch DDR clock to 400MHz failed\n");
 }
 
+static struct fb_videomode claa_wvga = {
+	.name		= "CLAA07LC0ACW",
+	.refresh	= 57,
+	.xres		= 800,
+	.yres		= 480,
+	.pixclock	= 37037,
+	.left_margin	= 40,
+	.right_margin	= 60,
+	.upper_margin	= 10,
+	.lower_margin	= 10,
+	.hsync_len	= 20,
+	.vsync_len	= 10,
+	.sync		= 0,
+	.vmode		= FB_VMODE_NONINTERLACED
+};
+
+void lcd_iomux(void)
+{
+	mxc_request_iomux(MX53_PIN_DI0_DISP_CLK, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DI0_PIN15, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DI0_PIN2, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DI0_PIN3, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT0, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT1, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT2, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT3, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT4, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT5, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT6, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT7, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT8, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT9, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT10, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT11, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT12, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT13, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT14, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT15, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT16, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT17, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT18, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT19, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT20, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT21, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT22, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_DISP0_DAT23, IOMUX_CONFIG_ALT0);
+
+	/* Turn on GPIO backlight */
+	mxc_request_iomux(MX53_PIN_EIM_D24, IOMUX_CONFIG_ALT1);
+	gpio_direction_output(MX53LOCO_LCD_POWER, 1);
+
+	/* Turn on display contrast */
+	mxc_request_iomux(MX53_PIN_GPIO_1, IOMUX_CONFIG_ALT1);
+	gpio_direction_output(IOMUX_TO_GPIO(MX53_PIN_GPIO_1), 1);
+}
+
+void lcd_enable(void)
+{
+	int ret = ipuv3_fb_init(&claa_wvga, 0, IPU_PIX_FMT_RGB565);
+	if (ret)
+		printf("LCD cannot be configured: %d\n", ret);
+}
+
 int board_early_init_f(void)
 {
 	setup_iomux_uart();
 	setup_iomux_fec();
+	lcd_iomux();
 
 	return 0;
 }
@@ -432,6 +500,8 @@ int board_late_init(void)
 		clock_1GHz();
 	print_cpuinfo();
 
+	setenv("stdout", "serial");
+
 	return 0;
 }
 #endif
@@ -442,6 +512,8 @@ int board_init(void)
 
 	mxc_set_sata_internal_clock();
 
+	lcd_enable();
+
 	return 0;
 }
 

include/configs/mx53loco.h

@@ -38,7 +38,7 @@
 #define CONFIG_INITRD_TAG
 
 /* Size of malloc() pool */
-#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 2 * 1024 * 1024)
+#define CONFIG_SYS_MALLOC_LEN		(10 * 1024 * 1024)
 
 #define CONFIG_BOARD_EARLY_INIT_F
 #define CONFIG_BOARD_LATE_INIT
@@ -220,4 +220,15 @@
 	#define CONFIG_LIBATA
 #endif
 
+/* Framebuffer and LCD */
+#define CONFIG_PREBOOT
+#define CONFIG_VIDEO
+#define CONFIG_VIDEO_MX5
+#define CONFIG_CFB_CONSOLE
+#define CONFIG_VGA_AS_SINGLE_DEVICE
+#define CONFIG_VIDEO_BMP_RLE8
+#define CONFIG_SPLASH_SCREEN
+#define CONFIG_BMP_16BPP
+#define CONFIG_VIDEO_LOGO
+
 #endif				/* __CONFIG_H */