diff options
Diffstat (limited to 'arch/arm/mach-imx/mm-imx5.c')
| -rw-r--r-- | arch/arm/mach-imx/mm-imx5.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c index f92caf1b30b..79d71cf23a1 100644 --- a/arch/arm/mach-imx/mm-imx5.c +++ b/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)); |