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| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-11-07 21:08:52 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-11-12 00:22:23 +0900 |
| commit | 2d5d1c9e293ac1e29f1e0f067aa381be44e8e844 (patch) | |
| tree | 3f0f116d910d7c5640cd6f8ce1e9247bd6615503 /arch/arm | |
| parent | 495deb44f203705dd631196db7c4f1768750ae95 (diff) | |
| download | u-boot-imx-2d5d1c9e293ac1e29f1e0f067aa381be44e8e844.zip u-boot-imx-2d5d1c9e293ac1e29f1e0f067aa381be44e8e844.tar.gz u-boot-imx-2d5d1c9e293ac1e29f1e0f067aa381be44e8e844.tar.bz2 | |
ARM: UniPhier: add set_pinsel macro for use in assembly code
The function sg_set_pinsel is useful for switching I/O pins
but it can be only used in C code. This commit adds a simple
macro that is available in asm code.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/arch-uniphier/sg-regs.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch-uniphier/sg-regs.h b/arch/arm/include/asm/arch-uniphier/sg-regs.h index 79d7ec7..fa5e6ae 100644 --- a/arch/arm/include/asm/arch-uniphier/sg-regs.h +++ b/arch/arm/include/asm/arch-uniphier/sg-regs.h @@ -88,7 +88,18 @@ #define SG_PINMON0_CLK_MODE_AXOSEL_20480KHZ (0x2 << 16) #define SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A (0x3 << 16) -#ifndef __ASSEMBLY__ +#ifdef __ASSEMBLY__ + + .macro set_pinsel, n, value, ra, rd + ldr \ra, =SG_PINSEL_ADDR(\n) + ldr \rd, [\ra] + and \rd, \rd, #SG_PINSEL_MASK(\n) + orr \rd, \rd, #SG_PINSEL_MODE(\n, \value) + str \rd, [\ra] + .endm + +#else + #include <linux/types.h> #include <asm/io.h> |