---

yaml
---
r: 340011
b: refs/heads/master
c: a4dfccf
h: refs/heads/master
i:
  340009: f595eab
  340007: 5866535
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 376aaac1837af8ed6c1014958396322c44306cbf
+refs/heads/master: a4dfccf8a8044fe2ed38b96e0546eaf8e669eb5f

trunk/arch/arm/mach-imx/mm-imx5.c

@@ -81,8 +81,28 @@ void __init imx50_init_early(void)
 	mxc_arch_reset_init(MX50_IO_ADDRESS(MX50_WDOG_BASE_ADDR));
 }
 
+/*
+ * The MIPI HSC unit has been removed from the i.MX51 Reference Manual by
+ * the Freescale marketing division. However this did not remove the
+ * hardware from the chip which still needs to be configured for proper
+ * IPU support.
+ */
+static void __init imx51_ipu_mipi_setup(void)
+{
+	void __iomem *hsc_addr;
+	hsc_addr = MX51_IO_ADDRESS(MX51_MIPI_HSC_BASE_ADDR);
+
+	/* setup MIPI module to legacy mode */
+	__raw_writel(0xf00, hsc_addr);
+
+	/* CSI mode: reserved; DI control mode: legacy (from Freescale BSP) */
+	__raw_writel(__raw_readl(hsc_addr + 0x800) | 0x30ff,
+		hsc_addr + 0x800);
+}
+
 void __init imx51_init_early(void)
 {
+	imx51_ipu_mipi_setup();
 	mxc_set_cpu_type(MXC_CPU_MX51);
 	mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR));
 	mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG1_BASE_ADDR));