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ARM: i.MX51: Setup MIPI 

Setting up the MIPI unit is necessary for proper IPU support,
so set this up here. This is only needed for graphics in barebox,
the Kernel repeats this setup during booting.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2014-11-11 20:20:27 +01:00
parent 2a407b25d0
commit 0437a24c58
1 changed files with 15 additions and 0 deletions
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15
arch/arm/mach-imx/imx51.c
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@ -41,11 +41,26 @@ static int imx51_silicon_revision(void)
return 0;
}
static void imx51_ipu_mipi_setup(void)
{
void __iomem *hsc_addr = (void __iomem *)MX51_MIPI_HSC_BASE_ADDR;
u32 val;
/* setup MIPI module to legacy mode */
writel(0xf00, hsc_addr);
/* CSI mode: reserved; DI control mode: legacy (from Freescale BSP) */
val = readl(hsc_addr + 0x800);
val |= 0x30ff;
writel(val, hsc_addr + 0x800);
}
int imx51_init(void)
{
imx_set_silicon_revision("i.MX51", imx51_silicon_revision());
imx51_boot_save_loc((void *)MX51_SRC_BASE_ADDR);
add_generic_device("imx51-esdctl", 0, NULL, MX51_ESDCTL_BASE_ADDR, 0x1000, IORESOURCE_MEM, NULL);
imx51_ipu_mipi_setup();
return 0;
}