LK: Add support for splash screen on MSM7627_SURF

Moving lcdc.c file from qsd8k and msm7x30 to msm_shared under platform
directory.
diff --git a/platform/msm_shared/lcdc.c b/platform/msm_shared/lcdc.c
new file mode 100755
index 0000000..9970923
--- /dev/null
+++ b/platform/msm_shared/lcdc.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the 
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <debug.h>
+#include <stdlib.h>
+#include <reg.h>
+#include <platform/iomap.h>
+#include <dev/fbcon.h>
+
+#define MSM_MDP_BASE1 0xAA200000
+
+#define LCDC_PIXCLK_IN_PS 26
+#define LCDC_FB_PHYS      0x16600000
+#define LCDC_FB_BPP       16
+
+#if 1
+/* SURF */
+#define LCDC_FB_WIDTH     800
+#define LCDC_FB_HEIGHT    480
+
+#define LCDC_HSYNC_PULSE_WIDTH_DCLK 60
+#define LCDC_HSYNC_BACK_PORCH_DCLK  81
+#define LCDC_HSYNC_FRONT_PORCH_DCLK 81
+#define LCDC_HSYNC_SKEW_DCLK        0
+
+#define LCDC_VSYNC_PULSE_WIDTH_LINES 2
+#define LCDC_VSYNC_BACK_PORCH_LINES  20
+#define LCDC_VSYNC_FRONT_PORCH_LINES 27
+
+#else
+/* FFA */
+#define LCDC_FB_WIDTH     480
+#define LCDC_FB_HEIGHT    640
+
+#define LCDC_HSYNC_PULSE_WIDTH_DCLK 60
+#define LCDC_HSYNC_BACK_PORCH_DCLK  144
+#define LCDC_HSYNC_FRONT_PORCH_DCLK 33
+#define LCDC_HSYNC_SKEW_DCLK        0
+
+#define LCDC_VSYNC_PULSE_WIDTH_LINES 2
+#define LCDC_VSYNC_BACK_PORCH_LINES  2
+#define LCDC_VSYNC_FRONT_PORCH_LINES 2
+
+#endif
+
+#define BIT(x)  (1<<(x))
+#define DMA_DSTC0G_8BITS (BIT(1)|BIT(0))
+#define DMA_DSTC1B_8BITS (BIT(3)|BIT(2))
+#define DMA_DSTC2R_8BITS (BIT(5)|BIT(4))
+#define CLR_G 0x0
+#define CLR_B 0x1
+#define CLR_R 0x2
+#define MDP_GET_PACK_PATTERN(a,x,y,z,bit) (((a)<<(bit*3))|((x)<<(bit*2))|((y)<<bit)|(z))
+#define DMA_PACK_ALIGN_LSB 0
+#define DMA_PACK_PATTERN_RGB					\
+        (MDP_GET_PACK_PATTERN(0,CLR_R,CLR_G,CLR_B,2)<<8)
+#define DMA_DITHER_EN                       BIT(24)
+#define DMA_OUT_SEL_LCDC                    BIT(20)
+#define DMA_IBUF_FORMAT_RGB565              BIT(25)
+
+static struct fbcon_config fb_cfg = {
+	.height		= LCDC_FB_HEIGHT,
+	.width		= LCDC_FB_WIDTH,
+	.stride		= LCDC_FB_WIDTH,
+	.format		= FB_FORMAT_RGB565,
+	.bpp		= LCDC_FB_BPP,
+	.update_start	= NULL,
+	.update_done	= NULL,
+};
+
+void lcdc_clock_init(unsigned rate);
+
+struct fbcon_config *lcdc_init(void)
+{
+	dprintf(INFO, "lcdc_init(): panel is %d x %d\n", fb_cfg.width, fb_cfg.height);
+
+	fb_cfg.base =
+		memalign(4096, fb_cfg.width * fb_cfg.height * (fb_cfg.bpp / 8));
+
+	lcdc_clock_init(1000000000 / LCDC_PIXCLK_IN_PS);
+
+	writel((unsigned) fb_cfg.base, MSM_MDP_BASE1 + 0x90008);
+
+	writel((fb_cfg.height << 16) | fb_cfg.width, MSM_MDP_BASE1 + 0x90004);
+	writel(fb_cfg.width * fb_cfg.bpp / 8, MSM_MDP_BASE1 + 0x9000c);
+	writel(0, MSM_MDP_BASE1 + 0x90010);
+
+	writel(DMA_PACK_ALIGN_LSB|DMA_PACK_PATTERN_RGB|DMA_DITHER_EN|DMA_OUT_SEL_LCDC|
+	       DMA_IBUF_FORMAT_RGB565|DMA_DSTC0G_8BITS|DMA_DSTC1B_8BITS|DMA_DSTC2R_8BITS,
+	       MSM_MDP_BASE1 + 0x90000);
+
+	int hsync_period  = LCDC_HSYNC_PULSE_WIDTH_DCLK + LCDC_HSYNC_BACK_PORCH_DCLK + fb_cfg.width + LCDC_HSYNC_FRONT_PORCH_DCLK;
+	int vsync_period  = (LCDC_VSYNC_PULSE_WIDTH_LINES + LCDC_VSYNC_BACK_PORCH_LINES + fb_cfg.height + LCDC_VSYNC_FRONT_PORCH_LINES) * hsync_period;
+	int hsync_start_x = LCDC_HSYNC_PULSE_WIDTH_DCLK + LCDC_HSYNC_BACK_PORCH_DCLK;
+	int hsync_end_x   = hsync_period - LCDC_HSYNC_FRONT_PORCH_DCLK - 1;
+	int display_hctl  = (hsync_end_x << 16) | hsync_start_x;
+	int display_vstart= (LCDC_VSYNC_PULSE_WIDTH_LINES + LCDC_VSYNC_BACK_PORCH_LINES) * hsync_period + LCDC_HSYNC_SKEW_DCLK;
+	int display_vend  = vsync_period - (LCDC_VSYNC_FRONT_PORCH_LINES * hsync_period) + LCDC_HSYNC_SKEW_DCLK - 1;
+
+	writel((hsync_period << 16) | LCDC_HSYNC_PULSE_WIDTH_DCLK, MSM_MDP_BASE1 + 0xe0004);
+	writel(vsync_period, MSM_MDP_BASE1 + 0xe0008);
+	writel(LCDC_VSYNC_PULSE_WIDTH_LINES * hsync_period, MSM_MDP_BASE1 + 0xe000c);
+	writel(display_hctl, MSM_MDP_BASE1 + 0xe0010);
+	writel(display_vstart, MSM_MDP_BASE1 + 0xe0014);
+	writel(display_vend, MSM_MDP_BASE1 + 0xe0018);
+	writel(0, MSM_MDP_BASE1 + 0xe0028);
+	writel(0xff, MSM_MDP_BASE1 + 0xe002c);
+	writel(LCDC_HSYNC_SKEW_DCLK, MSM_MDP_BASE1 + 0xe0030);
+	writel(0, MSM_MDP_BASE1 + 0xe0038);
+	writel(0, MSM_MDP_BASE1 + 0xe001c);
+	writel(0, MSM_MDP_BASE1 + 0xe0020);
+	writel(0, MSM_MDP_BASE1 + 0xe0024);
+
+	writel(1, MSM_MDP_BASE1 + 0xe0000);
+
+	return &fb_cfg;
+}
+