mirror of
https://github.com/brain-hackers/u-boot-brain
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2012 Samsung Electronics
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* Abhilash Kesavan <a.kesavan@samsung.com>
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*/
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#ifndef __ASM_ARM_ARCH_PINMUX_H
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#define __ASM_ARM_ARCH_PINMUX_H
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#include "periph.h"
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/*
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* Flags for setting specific configarations of peripherals.
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* List will grow with support for more devices getting added.
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*/
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enum {
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PINMUX_FLAG_NONE = 0x00000000,
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/* Flags for eMMC */
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PINMUX_FLAG_8BIT_MODE = 1 << 0, /* SDMMC 8-bit mode */
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/* Flags for SROM controller */
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PINMUX_FLAG_BANK = 3 << 0, /* bank number (0-3) */
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PINMUX_FLAG_16BIT = 1 << 2, /* 16-bit width */
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/* Flags for I2C */
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PINMUX_FLAG_HS_MODE = 1 << 1, /* I2C High Speed Mode */
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};
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/**
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* Configures the pinmux for a particular peripheral.
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*
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* Each gpio can be configured in many different ways (4 bits on exynos)
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* such as "input", "output", "special function", "external interrupt"
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* etc. This function will configure the peripheral pinmux along with
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* pull-up/down and drive strength.
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*
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* @param peripheral peripheral to be configured
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* @param flags configure flags
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* @return 0 if ok, -1 on error (e.g. unsupported peripheral)
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*/
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int exynos_pinmux_config(int peripheral, int flags);
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/**
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* Decode the peripheral id using the interrpt numbers.
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*
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* @param blob Device tree blob
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* @param node FDT I2C node to find
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* @return peripheral id if ok, PERIPH_ID_NONE on error
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*/
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int pinmux_decode_periph_id(const void *blob, int node);
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#endif
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