diff options
author | Minkyu Kang <mk7.kang@samsung.com> | 2015-11-20 15:24:57 +0900 |
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committer | Minkyu Kang <mk7.kang@samsung.com> | 2015-11-30 17:17:01 +0900 |
commit | 225f5eeccd6c0d376a20c15897edd8c69500d8cc (patch) | |
tree | f1348e316a9c4b871d3cadbab9d9cdbe7ce5852a /arch/arm/mach-s5pc1xx/include/mach/pinmux.h | |
parent | fa8883a1e39a20e72aaa5093af0c80062cb95757 (diff) |
arm: s5pc1xx: move SoC to mach-s5pc1xx
move arm/arm/cpu/armv7/s5pc1xx to arch/arm/mach-s5pc1xx
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'arch/arm/mach-s5pc1xx/include/mach/pinmux.h')
-rw-r--r-- | arch/arm/mach-s5pc1xx/include/mach/pinmux.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc1xx/include/mach/pinmux.h b/arch/arm/mach-s5pc1xx/include/mach/pinmux.h new file mode 100644 index 0000000000..0b91ef658c --- /dev/null +++ b/arch/arm/mach-s5pc1xx/include/mach/pinmux.h @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2012 Samsung Electronics + * Abhilash Kesavan <a.kesavan@samsung.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __ASM_ARM_ARCH_PINMUX_H +#define __ASM_ARM_ARCH_PINMUX_H + +#include "periph.h" + +/* + * Flags for setting specific configarations of peripherals. + * List will grow with support for more devices getting added. + */ +enum { + PINMUX_FLAG_NONE = 0x00000000, + + /* Flags for eMMC */ + PINMUX_FLAG_8BIT_MODE = 1 << 0, /* SDMMC 8-bit mode */ + + /* Flags for SROM controller */ + PINMUX_FLAG_BANK = 3 << 0, /* bank number (0-3) */ + PINMUX_FLAG_16BIT = 1 << 2, /* 16-bit width */ +}; + +/** + * Configures the pinmux for a particular peripheral. + * + * Each gpio can be configured in many different ways (4 bits on exynos) + * such as "input", "output", "special function", "external interrupt" + * etc. This function will configure the peripheral pinmux along with + * pull-up/down and drive strength. + * + * @param peripheral peripheral to be configured + * @param flags configure flags + * @return 0 if ok, -1 on error (e.g. unsupported peripheral) + */ +int exynos_pinmux_config(int peripheral, int flags); + +/** + * Decode the peripheral id using the interrpt numbers. + * + * @param blob Device tree blob + * @param node FDT I2C node to find + * @return peripheral id if ok, PERIPH_ID_NONE on error + */ +int pinmux_decode_periph_id(const void *blob, int node); +#endif |