msm7627a: Add support for lcdc splash screen
This patch adds lcdc splash screen support for SKU7
device
Change-Id: Ia2560ab70280325e5e0250158798dd9121551b14
diff --git a/platform/msm_shared/spi.c b/platform/msm_shared/spi.c
new file mode 100644
index 0000000..1051f42
--- /dev/null
+++ b/platform/msm_shared/spi.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2012, 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.
+ *
+ * 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 <sys/types.h>
+#include <platform/timer.h>
+#include <dev/gpio.h>
+
+void spi_bit_bang_write(uint8_t spi_sclk, uint8_t spi_mosi, uint8_t dc, uint8_t data)
+{
+ uint8_t bit;
+ uint8_t bnum;
+
+ gpio_set(spi_sclk, 0); /* clk low */
+ /* dc: 0 for command, 1 for parameter */
+ gpio_set(spi_mosi, dc);
+ udelay(1); /* at least 20 ns */
+ gpio_set(spi_sclk, 1); /* clk high */
+ udelay(1); /* at least 20 ns */
+ bnum = 8; /* 8 data bits */
+ bit = 0x80;
+ while(bnum){
+ gpio_set(spi_sclk, 0); /* clk low */
+ if (data & bit)
+ gpio_set(spi_mosi, 1);
+ else
+ gpio_set(spi_mosi, 0);
+ udelay(1);
+ gpio_set(spi_sclk, 1); /* clk high */
+ udelay(1);
+ bit >>= 1;
+ bnum--;
+ }
+}