diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2009-06-04 11:16:22 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-08-14 12:40:41 +0200 |
| commit | 6134b2cbb0e24f897fd1063745638397809fca29 (patch) | |
| tree | 2e985b582459fd56cb260e02ea8399d175923e9c /arch | |
| parent | fc2a9f0bc7f6dd4966dc57fb98b8697c83b6d035 (diff) | |
| download | linux-6134b2cbb0e24f897fd1063745638397809fca29.tar.bz2 | |
iomux-v3: Allow for a runtime base address
also, check for a valid pad_ctrl_ofs before changing the
pad control register.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-mx3/mm.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/iomux-v3.h | 5 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/iomux-v3.c | 15 |
3 files changed, 17 insertions, 5 deletions
diff --git a/arch/arm/mach-mx3/mm.c b/arch/arm/mach-mx3/mm.c index c327172159c0..ad5a1122d765 100644 --- a/arch/arm/mach-mx3/mm.c +++ b/arch/arm/mach-mx3/mm.c @@ -30,6 +30,7 @@ #include <mach/common.h> #include <mach/hardware.h> +#include <mach/iomux-v3.h> /*! * @file mm.c @@ -83,6 +84,7 @@ void __init mx31_map_io(void) void __init mx35_map_io(void) { mxc_set_cpu_type(MXC_CPU_MX35); + mxc_iomux_v3_init(IO_ADDRESS(IOMUXC_BASE_ADDR)); mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR)); iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); diff --git a/arch/arm/plat-mxc/include/mach/iomux-v3.h b/arch/arm/plat-mxc/include/mach/iomux-v3.h index cd06df9370cb..a0fa40265468 100644 --- a/arch/arm/plat-mxc/include/mach/iomux-v3.h +++ b/arch/arm/plat-mxc/include/mach/iomux-v3.h @@ -113,5 +113,10 @@ void mxc_iomux_v3_release_pad(struct pad_desc *pad); */ void mxc_iomux_v3_release_multiple_pads(struct pad_desc *pad_list, int count); +/* + * Initialise the iomux controller + */ +void mxc_iomux_v3_init(void __iomem *iomux_v3_base); + #endif /* __MACH_IOMUX_V3_H__*/ diff --git a/arch/arm/plat-mxc/iomux-v3.c b/arch/arm/plat-mxc/iomux-v3.c index 77a078f9513f..851ca99bf1b1 100644 --- a/arch/arm/plat-mxc/iomux-v3.c +++ b/arch/arm/plat-mxc/iomux-v3.c @@ -29,7 +29,7 @@ #include <asm/mach/map.h> #include <mach/iomux-v3.h> -#define IOMUX_BASE IO_ADDRESS(IOMUXC_BASE_ADDR) +static void __iomem *base; static unsigned long iomux_v3_pad_alloc_map[0x200 / BITS_PER_LONG]; @@ -45,14 +45,14 @@ int mxc_iomux_v3_setup_pad(struct pad_desc *pad) if (test_and_set_bit(pad_ofs >> 2, iomux_v3_pad_alloc_map)) return -EBUSY; if (pad->mux_ctrl_ofs) - __raw_writel(pad->mux_mode, IOMUX_BASE + pad->mux_ctrl_ofs); + __raw_writel(pad->mux_mode, base + pad->mux_ctrl_ofs); if (pad->select_input_ofs) __raw_writel(pad->select_input, - IOMUX_BASE + pad->select_input_ofs); + base + pad->select_input_ofs); - if (!(pad->pad_ctrl & NO_PAD_CTRL)) - __raw_writel(pad->pad_ctrl, IOMUX_BASE + pad->pad_ctrl_ofs); + if (!(pad->pad_ctrl & NO_PAD_CTRL) && pad->pad_ctrl_ofs) + __raw_writel(pad->pad_ctrl, base + pad->pad_ctrl_ofs); return 0; } EXPORT_SYMBOL(mxc_iomux_v3_setup_pad); @@ -96,3 +96,8 @@ void mxc_iomux_v3_release_multiple_pads(struct pad_desc *pad_list, int count) } } EXPORT_SYMBOL(mxc_iomux_v3_release_multiple_pads); + +void mxc_iomux_v3_init(void __iomem *iomux_v3_base) +{ + base = iomux_v3_base; +} |