ENGR00137894-6 MX53 SMD:Support splashimage

This patch supports to use pwm wave to control
backlight. The pwm rate is 20KHz and the pwm
duty is 50%. Only lvds panel is supported.
Use 'lvds_num' env variable to choose to use
lvds0 or lvds1. However, only lvds1 is tested
as the lvds cable cannot be plugged into lvds0
connector. Note that you need to add 'splashimage'
env variable to set the memory address of the
bmp image.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>

1 files changed, 127 insertions, 1 deletions

diff --git a/board/freescale/mx53_smd/mx53_smd.c b/board/freescale/mx53_smd/mx53_smd.c
index 6e07bed..be1185f 100644
--- a/board/freescale/mx53_smd/mx53_smd.c
+++ b/board/freescale/mx53_smd/mx53_smd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -26,6 +26,14 @@
 #include <asm/arch/mx53_pins.h>
 #include <asm/arch/iomux.h>
 #include <asm/errno.h>
+#if defined(CONFIG_VIDEO_MX5)
+#include <asm/imx_pwm.h>
+#include <linux/list.h>
+#include <linux/fb.h>
+#include <linux/mxcfb.h>
+#include <ipu.h>
+#include <lcd.h>
+#endif
 #include <netdev.h>
 
 #if CONFIG_I2C_MXC
@@ -65,6 +73,45 @@ DECLARE_GLOBAL_DATA_PTR;
 static u32 system_rev;
 static enum boot_device boot_dev;
 
+#ifdef CONFIG_VIDEO_MX5
+extern unsigned char fsl_bmp_600x400[];
+extern int fsl_bmp_600x400_size;
+
+#if defined(CONFIG_BMP_8BPP)
+unsigned short colormap[256];
+#elif defined(CONFIG_BMP_16BPP)
+unsigned short colormap[65536];
+#else
+unsigned short colormap[16777216];
+#endif
+
+struct pwm_device pwm0 = {
+	.pwm_id = 1,
+	.pwmo_invert = 0,
+};
+
+struct pwm_device pwm1 = {
+	.pwm_id = 1,
+	.pwmo_invert = 0,
+};
+
+static int di = 1;
+#endif
+
+extern int ipuv3_fb_init(struct fb_videomode *mode, int di,
+			int interface_pix_fmt,
+			ipu_di_clk_parent_t di_clk_parent,
+			int di_clk_val);
+
+static struct fb_videomode lvds_xga = {
+	 "XGA", 60, 1024, 768, 15385, 220, 40, 21, 7, 60, 10,
+	 FB_SYNC_EXT,
+	 FB_VMODE_NONINTERLACED,
+	 0,
+};
+
+vidinfo_t panel_info;
+
 static inline void setup_boot_device(void)
 {
 	uint soc_sbmr = readl(SRC_BASE_ADDR + 0x4);
@@ -540,6 +587,77 @@ int board_mmc_init(bd_t *bis)
 
 #endif
 
+#ifdef CONFIG_LCD
+void lcd_enable(void)
+{
+	char *s;
+	int ret;
+	unsigned int reg;
+
+	s = getenv("lvds_num");
+	di = simple_strtol(s, NULL, 10);
+
+	/* 20KHz PWM wave, 50% duty */
+	if (di == 1) {
+		imx_pwm_config(pwm1, 25000, 50000);
+		imx_pwm_enable(pwm1);
+	} else {
+		imx_pwm_config(pwm0, 25000, 50000);
+		imx_pwm_enable(pwm0);
+	}
+	mxc_request_iomux(MX53_PIN_GPIO_1, IOMUX_CONFIG_ALT4);
+
+	ret = ipuv3_fb_init(&lvds_xga, di, IPU_PIX_FMT_RGB666,
+			DI_PCLK_LDB, 65000000);
+	if (ret)
+		puts("LCD cannot be configured\n");
+
+	reg = readl(CCM_BASE_ADDR + CLKCTL_CSCMR2);
+	reg &= ~0xFC000000;
+	reg |= 0xB4000F00;
+	writel(reg, CCM_BASE_ADDR + CLKCTL_CSCMR2);
+
+	reg = readl(CCM_BASE_ADDR + CLKCTL_CCGR6);
+	reg |= 0xF0000000;
+	writel(reg, CCM_BASE_ADDR + CLKCTL_CCGR6);
+
+	if (di == 1)
+		writel(0x40C, IOMUXC_BASE_ADDR + 0x8);
+	else
+		writel(0x201, IOMUXC_BASE_ADDR + 0x8);
+}
+#endif
+
+#ifdef CONFIG_VIDEO_MX5
+void panel_info_init(void)
+{
+	panel_info.vl_bpix = LCD_BPP;
+	panel_info.vl_col = lvds_xga.xres;
+	panel_info.vl_row = lvds_xga.yres;
+	panel_info.cmap = colormap;
+}
+#endif
+
+#ifdef CONFIG_SPLASH_SCREEN
+void setup_splash_image(void)
+{
+	char *s;
+	ulong addr;
+
+	s = getenv("splashimage");
+
+	if (s != NULL) {
+		addr = simple_strtoul(s, NULL, 16);
+
+#if defined(CONFIG_ARCH_MMU)
+		addr = ioremap_nocache(iomem_to_phys(addr),
+				fsl_bmp_600x400_size);
+#endif
+		memcpy((char *)addr, (char *)fsl_bmp_600x400,
+				fsl_bmp_600x400_size);
+	}
+}
+#endif
 
 int board_init(void)
 {
@@ -572,6 +690,14 @@ int board_init(void)
 	setup_sata_device();
 #endif
 
+#ifdef CONFIG_VIDEO_MX5
+	panel_info_init();
+
+	gd->fb_base = CONFIG_FB_BASE;
+#ifdef CONFIG_ARCH_MMU
+	gd->fb_base = ioremap_nocache(iomem_to_phys(gd->fb_base), 0);
+#endif
+#endif
 	return 0;
 }