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git01.mediatek.com / filogic / uboot / cdcda675897806898fcb4274af98b7f2169e0b96 / . / arch / arm / include / asm / omap_gpio.h
blob: 20268fa084e4eaac894e4aea6471c26fb3577e15 [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -0400[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
Tom Rixdd2d1cc2009-05-15 23:48:36 +0200[diff] [blame]2/*
3 * Copyright (c) 2009 Wind River Systems, Inc.
4 * Tom Rix <Tom.Rix@windriver.com>
5 *
Tom Rixdd2d1cc2009-05-15 23:48:36 +0200[diff] [blame]6 * This work is derived from the linux 2.6.27 kernel source
7 * To fetch, use the kernel repository
8 * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
9 * Use the v2.6.27 tag.
10 *
11 * Below is the original's header including its copyright
12 *
13 * linux/arch/arm/plat-omap/gpio.c
14 *
15 * Support functions for OMAP GPIO
16 *
17 * Copyright (C) 2003-2005 Nokia Corporation
18 * Written by Juha Yrjölä <juha.yrjola@nokia.com>
Tom Rixdd2d1cc2009-05-15 23:48:36 +0200[diff] [blame]19 */
20#ifndef _GPIO_H
21#define _GPIO_H
22
Aneesh V9a390882011-07-21 09:29:29 -0400[diff] [blame]23#include <asm/arch/cpu.h>
Tom Rixdd2d1cc2009-05-15 23:48:36 +0200[diff] [blame]24
Simon Glass1a96d7f2014-10-22 21:37:09 -0600[diff] [blame]25#ifdef CONFIG_DM_GPIO
26
27/* Information about a GPIO bank */
28struct omap_gpio_platdata {
29 int bank_index;
30 ulong base; /* address of registers in physical memory */
Tom Rini7bc2bca2015-07-31 19:55:09 -0400[diff] [blame]31 const char *port_name;
Simon Glass1a96d7f2014-10-22 21:37:09 -0600[diff] [blame]32};
33
34#else
35
Tom Rixdd2d1cc2009-05-15 23:48:36 +0200[diff] [blame]36struct gpio_bank {
37 void *base;
Tom Rixdd2d1cc2009-05-15 23:48:36 +0200[diff] [blame]38};
39
Aneesh V9a390882011-07-21 09:29:29 -0400[diff] [blame]40extern const struct gpio_bank *const omap_gpio_bank;
41
Nikita Kiryanove3cb9c12012-11-27 22:40:57 +0000[diff] [blame]42/**
43 * Check if gpio is valid.
44 *
45 * @param gpio GPIO number
46 * @return 1 if ok, 0 on error
47 */
48int gpio_is_valid(int gpio);
Simon Glass1a96d7f2014-10-22 21:37:09 -0600[diff] [blame]49#endif
50
Tom Rixdd2d1cc2009-05-15 23:48:36 +0200[diff] [blame]51#endif /* _GPIO_H_ */