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>

1 files changed, 72 insertions, 0 deletions

diff --git a/board/freescale/mx53loco/mx53loco.c b/board/freescale/mx53loco/mx53loco.c
index dec966d..d8e027c 100644
--- a/board/freescale/mx53loco/mx53loco.c
+++ b/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;
 }