msm7627a: splash screen support

Change-Id: Ifa8223a71da1cb28f1b395009e430998d2c145c6
diff --git a/platform/msm_shared/mdp3.c b/platform/msm_shared/mdp3.c
new file mode 100644
index 0000000..f9f3409
--- /dev/null
+++ b/platform/msm_shared/mdp3.c
@@ -0,0 +1,103 @@
+/* Copyright (c) 2011, Code Aurora Forum. 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.
+ *     * Neither the name of Code Aurora Forum, Inc. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * 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 <mdp3.h>
+#include <debug.h>
+#include <reg.h>
+#include <target/display.h>
+#include <platform/timer.h>
+#include <platform/iomap.h>
+
+int mdp_setup_dma_p_video_mode(unsigned short disp_width,
+                               unsigned short disp_height,
+                               unsigned short img_width,
+                               unsigned short img_height,
+                               unsigned short hsync_porch0_fp,
+                               unsigned short hsync_porch0_bp,
+                               unsigned short vsync_porch0_fp,
+                               unsigned short vsync_porch0_bp,
+                               unsigned short hsync_width,
+                               unsigned short vsync_width,
+                               unsigned long input_img_addr,
+                               unsigned short img_width_full_size,
+                               unsigned short pack_pattern,
+                               unsigned char ystride)
+{
+
+    // unsigned long mdp_intr_status;
+    int status = FAIL;
+    unsigned long hsync_period;
+    unsigned long vsync_period;
+    unsigned long vsync_period_intmd;
+
+    dprintf(SPEW, "MDP3.0.3 for DSI Video Mode\n");
+
+    hsync_period = img_width + hsync_porch0_fp + hsync_porch0_bp + 1;
+    vsync_period_intmd = img_height + vsync_porch0_fp + vsync_porch0_bp + 1;
+    vsync_period = vsync_period_intmd * hsync_period;
+
+
+    // ------------- programming MDP_DMA_P_CONFIG ---------------------
+    writel(0x1800bf, MDP_DMA_P_CONFIG); // rgb888
+
+    writel(0x00000000, MDP_DMA_P_OUT_XY);
+    writel(img_height << 16 | img_width, MDP_DMA_P_SIZE);
+    writel(input_img_addr, MDP_DMA_P_BUF_ADDR);
+    writel(img_width_full_size * ystride, MDP_DMA_P_BUF_Y_STRIDE);
+    writel(hsync_period << 16 | hsync_width, MDP_DSI_VIDEO_HSYNC_CTL);
+    writel(vsync_period, MDP_DSI_VIDEO_VSYNC_PERIOD);
+    writel(vsync_width * hsync_period, MDP_DSI_VIDEO_VSYNC_PULSE_WIDTH);
+    writel((img_width + hsync_porch0_bp - 1) << 16 | hsync_porch0_bp,
+           MDP_DSI_VIDEO_DISPLAY_HCTL);
+    writel(vsync_porch0_bp * hsync_period, MDP_DSI_VIDEO_DISPLAY_V_START);
+    writel((img_height + vsync_porch0_bp) * hsync_period,
+           MDP_DSI_VIDEO_DISPLAY_V_END);
+    writel(0x00ABCDEF, MDP_DSI_VIDEO_BORDER_CLR);
+    writel(0x00000000, MDP_DSI_VIDEO_HSYNC_SKEW);
+    writel(0x00000000, MDP_DSI_VIDEO_CTL_POLARITY);
+    // end of cmd mdp
+
+    writel(0x00000001, MDP_DSI_VIDEO_EN);   // MDP_DSI_EN ENABLE
+
+    status = PASS;
+    return status;
+}
+void mdp_disable(void)
+{
+    writel(0x00000000, MDP_DSI_VIDEO_EN);
+}
+
+void mdp_shutdown(void)
+{
+    mdp_disable();
+    mdelay(60);
+    writel(0x00000000, MDP_INTR_ENABLE);
+    writel(0x01ffffff, MDP_INTR_CLEAR);
+}
+
+