2360 lines
51 KiB
C
2360 lines
51 KiB
C
/*
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* Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* Copyright 2008 Openmoko, Inc.
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* Copyright 2008 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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* http://armlinux.simtec.co.uk/
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*
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* SAMSUNG - GPIOlib support
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/irq.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/spinlock.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/device.h>
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#include <linux/ioport.h>
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#include <linux/of.h>
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#include <linux/slab.h>
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#include <linux/of_address.h>
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#include <asm/irq.h>
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#include <mach/hardware.h>
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#include <mach/map.h>
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#include <mach/regs-gpio.h>
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#include <plat/cpu.h>
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#include <plat/gpio-core.h>
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#include <plat/gpio-cfg.h>
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#include <plat/gpio-cfg-helpers.h>
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#include <plat/pm.h>
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int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip,
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unsigned int off, samsung_gpio_pull_t pull)
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{
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void __iomem *reg = chip->base + 0x08;
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int shift = off * 2;
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u32 pup;
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pup = __raw_readl(reg);
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pup &= ~(3 << shift);
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pup |= pull << shift;
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__raw_writel(pup, reg);
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return 0;
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}
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samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip,
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unsigned int off)
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{
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void __iomem *reg = chip->base + 0x08;
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int shift = off * 2;
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u32 pup = __raw_readl(reg);
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pup >>= shift;
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pup &= 0x3;
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return (__force samsung_gpio_pull_t)pup;
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}
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int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip,
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unsigned int off, samsung_gpio_pull_t pull)
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{
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switch (pull) {
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case S3C_GPIO_PULL_NONE:
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pull = 0x01;
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break;
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case S3C_GPIO_PULL_UP:
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pull = 0x00;
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break;
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case S3C_GPIO_PULL_DOWN:
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pull = 0x02;
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break;
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}
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return samsung_gpio_setpull_updown(chip, off, pull);
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}
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samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip,
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unsigned int off)
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{
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samsung_gpio_pull_t pull;
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pull = samsung_gpio_getpull_updown(chip, off);
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switch (pull) {
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case 0x00:
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pull = S3C_GPIO_PULL_UP;
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break;
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case 0x01:
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case 0x03:
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pull = S3C_GPIO_PULL_NONE;
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break;
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case 0x02:
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pull = S3C_GPIO_PULL_DOWN;
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break;
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}
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return pull;
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}
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static int s3c24xx_gpio_setpull_1(struct samsung_gpio_chip *chip,
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unsigned int off, samsung_gpio_pull_t pull,
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samsung_gpio_pull_t updown)
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{
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void __iomem *reg = chip->base + 0x08;
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u32 pup = __raw_readl(reg);
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if (pull == updown)
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pup &= ~(1 << off);
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else if (pull == S3C_GPIO_PULL_NONE)
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pup |= (1 << off);
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else
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return -EINVAL;
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__raw_writel(pup, reg);
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return 0;
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}
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static samsung_gpio_pull_t s3c24xx_gpio_getpull_1(struct samsung_gpio_chip *chip,
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unsigned int off,
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samsung_gpio_pull_t updown)
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{
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void __iomem *reg = chip->base + 0x08;
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u32 pup = __raw_readl(reg);
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pup &= (1 << off);
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return pup ? S3C_GPIO_PULL_NONE : updown;
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}
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samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip,
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unsigned int off)
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{
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return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP);
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}
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int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip,
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unsigned int off, samsung_gpio_pull_t pull)
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{
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return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP);
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}
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samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip,
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unsigned int off)
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{
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return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN);
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}
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int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
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unsigned int off, samsung_gpio_pull_t pull)
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{
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return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
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}
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/*
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* samsung_gpio_setcfg_2bit - Samsung 2bit style GPIO configuration.
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* @chip: The gpio chip that is being configured.
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* @off: The offset for the GPIO being configured.
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* @cfg: The configuration value to set.
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*
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* This helper deal with the GPIO cases where the control register
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* has two bits of configuration per gpio, which have the following
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* functions:
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* 00 = input
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* 01 = output
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* 1x = special function
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*/
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static int samsung_gpio_setcfg_2bit(struct samsung_gpio_chip *chip,
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unsigned int off, unsigned int cfg)
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{
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void __iomem *reg = chip->base;
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unsigned int shift = off * 2;
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u32 con;
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if (samsung_gpio_is_cfg_special(cfg)) {
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cfg &= 0xf;
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if (cfg > 3)
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return -EINVAL;
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cfg <<= shift;
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}
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con = __raw_readl(reg);
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con &= ~(0x3 << shift);
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con |= cfg;
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__raw_writel(con, reg);
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return 0;
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}
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/*
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* samsung_gpio_getcfg_2bit - Samsung 2bit style GPIO configuration read.
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* @chip: The gpio chip that is being configured.
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* @off: The offset for the GPIO being configured.
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*
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* The reverse of samsung_gpio_setcfg_2bit(). Will return a value which
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* could be directly passed back to samsung_gpio_setcfg_2bit(), from the
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* S3C_GPIO_SPECIAL() macro.
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*/
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static unsigned int samsung_gpio_getcfg_2bit(struct samsung_gpio_chip *chip,
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unsigned int off)
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{
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u32 con;
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con = __raw_readl(chip->base);
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con >>= off * 2;
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con &= 3;
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/* this conversion works for IN and OUT as well as special mode */
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return S3C_GPIO_SPECIAL(con);
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}
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/*
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* samsung_gpio_setcfg_4bit - Samsung 4bit single register GPIO config.
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* @chip: The gpio chip that is being configured.
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* @off: The offset for the GPIO being configured.
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* @cfg: The configuration value to set.
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*
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* This helper deal with the GPIO cases where the control register has 4 bits
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* of control per GPIO, generally in the form of:
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* 0000 = Input
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* 0001 = Output
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* others = Special functions (dependent on bank)
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*
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* Note, since the code to deal with the case where there are two control
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* registers instead of one, we do not have a separate set of functions for
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* each case.
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*/
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static int samsung_gpio_setcfg_4bit(struct samsung_gpio_chip *chip,
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unsigned int off, unsigned int cfg)
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{
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void __iomem *reg = chip->base;
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unsigned int shift = (off & 7) * 4;
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u32 con;
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if (off < 8 && chip->chip.ngpio > 8)
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reg -= 4;
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if (samsung_gpio_is_cfg_special(cfg)) {
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cfg &= 0xf;
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cfg <<= shift;
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}
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con = __raw_readl(reg);
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con &= ~(0xf << shift);
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con |= cfg;
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__raw_writel(con, reg);
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return 0;
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}
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/*
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* samsung_gpio_getcfg_4bit - Samsung 4bit single register GPIO config read.
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* @chip: The gpio chip that is being configured.
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* @off: The offset for the GPIO being configured.
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*
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* The reverse of samsung_gpio_setcfg_4bit(), turning a gpio configuration
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* register setting into a value the software can use, such as could be passed
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* to samsung_gpio_setcfg_4bit().
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*
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* @sa samsung_gpio_getcfg_2bit
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*/
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static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
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unsigned int off)
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{
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void __iomem *reg = chip->base;
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unsigned int shift = (off & 7) * 4;
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u32 con;
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if (off < 8 && chip->chip.ngpio > 8)
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reg -= 4;
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con = __raw_readl(reg);
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con >>= shift;
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con &= 0xf;
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/* this conversion works for IN and OUT as well as special mode */
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return S3C_GPIO_SPECIAL(con);
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}
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#ifdef CONFIG_PLAT_S3C24XX
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/*
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* s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A)
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* @chip: The gpio chip that is being configured.
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* @off: The offset for the GPIO being configured.
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* @cfg: The configuration value to set.
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*
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* This helper deal with the GPIO cases where the control register
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* has one bit of configuration for the gpio, where setting the bit
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* means the pin is in special function mode and unset means output.
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*/
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static int s3c24xx_gpio_setcfg_abank(struct samsung_gpio_chip *chip,
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unsigned int off, unsigned int cfg)
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{
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void __iomem *reg = chip->base;
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unsigned int shift = off;
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u32 con;
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if (samsung_gpio_is_cfg_special(cfg)) {
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cfg &= 0xf;
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/* Map output to 0, and SFN2 to 1 */
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cfg -= 1;
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if (cfg > 1)
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return -EINVAL;
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cfg <<= shift;
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}
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con = __raw_readl(reg);
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con &= ~(0x1 << shift);
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con |= cfg;
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__raw_writel(con, reg);
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return 0;
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}
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/*
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* s3c24xx_gpio_getcfg_abank - S3C24XX style GPIO configuration read (Bank A)
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* @chip: The gpio chip that is being configured.
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* @off: The offset for the GPIO being configured.
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*
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* The reverse of s3c24xx_gpio_setcfg_abank() turning an GPIO into a usable
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* GPIO configuration value.
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*
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* @sa samsung_gpio_getcfg_2bit
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* @sa samsung_gpio_getcfg_4bit
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*/
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static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
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unsigned int off)
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{
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u32 con;
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con = __raw_readl(chip->base);
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con >>= off;
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con &= 1;
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con++;
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return S3C_GPIO_SFN(con);
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}
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#endif
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#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
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static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
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unsigned int off, unsigned int cfg)
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{
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void __iomem *reg = chip->base;
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unsigned int shift;
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u32 con;
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switch (off) {
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case 0:
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case 1:
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case 2:
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case 3:
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case 4:
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case 5:
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shift = (off & 7) * 4;
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reg -= 4;
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break;
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case 6:
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shift = ((off + 1) & 7) * 4;
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reg -= 4;
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default:
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shift = ((off + 1) & 7) * 4;
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break;
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}
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if (samsung_gpio_is_cfg_special(cfg)) {
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cfg &= 0xf;
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cfg <<= shift;
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}
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con = __raw_readl(reg);
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con &= ~(0xf << shift);
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con |= cfg;
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__raw_writel(con, reg);
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return 0;
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}
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#endif
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static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
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int nr_chips)
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{
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for (; nr_chips > 0; nr_chips--, chipcfg++) {
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if (!chipcfg->set_config)
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chipcfg->set_config = samsung_gpio_setcfg_4bit;
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if (!chipcfg->get_config)
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chipcfg->get_config = samsung_gpio_getcfg_4bit;
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if (!chipcfg->set_pull)
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chipcfg->set_pull = samsung_gpio_setpull_updown;
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if (!chipcfg->get_pull)
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chipcfg->get_pull = samsung_gpio_getpull_updown;
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}
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}
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struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
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.set_config = samsung_gpio_setcfg_2bit,
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.get_config = samsung_gpio_getcfg_2bit,
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};
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#ifdef CONFIG_PLAT_S3C24XX
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static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
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.set_config = s3c24xx_gpio_setcfg_abank,
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.get_config = s3c24xx_gpio_getcfg_abank,
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};
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#endif
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#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
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static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
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.cfg_eint = 0x3,
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.set_config = s5p64x0_gpio_setcfg_rbank,
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.get_config = samsung_gpio_getcfg_4bit,
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.set_pull = samsung_gpio_setpull_updown,
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.get_pull = samsung_gpio_getpull_updown,
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};
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#endif
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static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
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[0] = {
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.cfg_eint = 0x0,
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},
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[1] = {
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.cfg_eint = 0x3,
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},
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[2] = {
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.cfg_eint = 0x7,
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},
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[3] = {
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.cfg_eint = 0xF,
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},
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[4] = {
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.cfg_eint = 0x0,
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.set_config = samsung_gpio_setcfg_2bit,
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.get_config = samsung_gpio_getcfg_2bit,
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},
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[5] = {
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.cfg_eint = 0x2,
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.set_config = samsung_gpio_setcfg_2bit,
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.get_config = samsung_gpio_getcfg_2bit,
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},
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[6] = {
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.cfg_eint = 0x3,
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.set_config = samsung_gpio_setcfg_2bit,
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.get_config = samsung_gpio_getcfg_2bit,
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},
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[7] = {
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.set_config = samsung_gpio_setcfg_2bit,
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.get_config = samsung_gpio_getcfg_2bit,
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},
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};
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/*
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* Default routines for controlling GPIO, based on the original S3C24XX
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* GPIO functions which deal with the case where each gpio bank of the
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* chip is as following:
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*
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* base + 0x00: Control register, 2 bits per gpio
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* gpio n: 2 bits starting at (2*n)
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* 00 = input, 01 = output, others mean special-function
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* base + 0x04: Data register, 1 bit per gpio
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* bit n: data bit n
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*/
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static int samsung_gpiolib_2bit_input(struct gpio_chip *chip, unsigned offset)
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{
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struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
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void __iomem *base = ourchip->base;
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unsigned long flags;
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unsigned long con;
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samsung_gpio_lock(ourchip, flags);
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con = __raw_readl(base + 0x00);
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con &= ~(3 << (offset * 2));
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__raw_writel(con, base + 0x00);
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samsung_gpio_unlock(ourchip, flags);
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return 0;
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}
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static int samsung_gpiolib_2bit_output(struct gpio_chip *chip,
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unsigned offset, int value)
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{
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struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
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void __iomem *base = ourchip->base;
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unsigned long flags;
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unsigned long dat;
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unsigned long con;
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samsung_gpio_lock(ourchip, flags);
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dat = __raw_readl(base + 0x04);
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dat &= ~(1 << offset);
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if (value)
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dat |= 1 << offset;
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__raw_writel(dat, base + 0x04);
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con = __raw_readl(base + 0x00);
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con &= ~(3 << (offset * 2));
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con |= 1 << (offset * 2);
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__raw_writel(con, base + 0x00);
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__raw_writel(dat, base + 0x04);
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|
|
samsung_gpio_unlock(ourchip, flags);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The samsung_gpiolib_4bit routines are to control the gpio banks where
|
|
* the gpio configuration register (GPxCON) has 4 bits per GPIO, as the
|
|
* following example:
|
|
*
|
|
* base + 0x00: Control register, 4 bits per gpio
|
|
* gpio n: 4 bits starting at (4*n)
|
|
* 0000 = input, 0001 = output, others mean special-function
|
|
* base + 0x04: Data register, 1 bit per gpio
|
|
* bit n: data bit n
|
|
*
|
|
* Note, since the data register is one bit per gpio and is at base + 0x4
|
|
* we can use samsung_gpiolib_get and samsung_gpiolib_set to change the
|
|
* state of the output.
|
|
*/
|
|
|
|
static int samsung_gpiolib_4bit_input(struct gpio_chip *chip,
|
|
unsigned int offset)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
void __iomem *base = ourchip->base;
|
|
unsigned long con;
|
|
|
|
con = __raw_readl(base + GPIOCON_OFF);
|
|
if (ourchip->bitmap_gpio_int & BIT(offset))
|
|
con |= 0xf << con_4bit_shift(offset);
|
|
else
|
|
con &= ~(0xf << con_4bit_shift(offset));
|
|
__raw_writel(con, base + GPIOCON_OFF);
|
|
|
|
pr_debug("%s: %p: CON now %08lx\n", __func__, base, con);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int samsung_gpiolib_4bit_output(struct gpio_chip *chip,
|
|
unsigned int offset, int value)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
void __iomem *base = ourchip->base;
|
|
unsigned long con;
|
|
unsigned long dat;
|
|
|
|
con = __raw_readl(base + GPIOCON_OFF);
|
|
con &= ~(0xf << con_4bit_shift(offset));
|
|
con |= 0x1 << con_4bit_shift(offset);
|
|
|
|
dat = __raw_readl(base + GPIODAT_OFF);
|
|
|
|
if (value)
|
|
dat |= 1 << offset;
|
|
else
|
|
dat &= ~(1 << offset);
|
|
|
|
__raw_writel(dat, base + GPIODAT_OFF);
|
|
__raw_writel(con, base + GPIOCON_OFF);
|
|
__raw_writel(dat, base + GPIODAT_OFF);
|
|
|
|
pr_debug("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The next set of routines are for the case where the GPIO configuration
|
|
* registers are 4 bits per GPIO but there is more than one register (the
|
|
* bank has more than 8 GPIOs.
|
|
*
|
|
* This case is the similar to the 4 bit case, but the registers are as
|
|
* follows:
|
|
*
|
|
* base + 0x00: Control register, 4 bits per gpio (lower 8 GPIOs)
|
|
* gpio n: 4 bits starting at (4*n)
|
|
* 0000 = input, 0001 = output, others mean special-function
|
|
* base + 0x04: Control register, 4 bits per gpio (up to 8 additions GPIOs)
|
|
* gpio n: 4 bits starting at (4*n)
|
|
* 0000 = input, 0001 = output, others mean special-function
|
|
* base + 0x08: Data register, 1 bit per gpio
|
|
* bit n: data bit n
|
|
*
|
|
* To allow us to use the samsung_gpiolib_get and samsung_gpiolib_set
|
|
* routines we store the 'base + 0x4' address so that these routines see
|
|
* the data register at ourchip->base + 0x04.
|
|
*/
|
|
|
|
static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip,
|
|
unsigned int offset)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
void __iomem *base = ourchip->base;
|
|
void __iomem *regcon = base;
|
|
unsigned long con;
|
|
|
|
if (offset > 7)
|
|
offset -= 8;
|
|
else
|
|
regcon -= 4;
|
|
|
|
con = __raw_readl(regcon);
|
|
con &= ~(0xf << con_4bit_shift(offset));
|
|
__raw_writel(con, regcon);
|
|
|
|
pr_debug("%s: %p: CON %08lx\n", __func__, base, con);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
|
|
unsigned int offset, int value)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
void __iomem *base = ourchip->base;
|
|
void __iomem *regcon = base;
|
|
unsigned long con;
|
|
unsigned long dat;
|
|
unsigned con_offset = offset;
|
|
|
|
if (con_offset > 7)
|
|
con_offset -= 8;
|
|
else
|
|
regcon -= 4;
|
|
|
|
con = __raw_readl(regcon);
|
|
con &= ~(0xf << con_4bit_shift(con_offset));
|
|
con |= 0x1 << con_4bit_shift(con_offset);
|
|
|
|
dat = __raw_readl(base + GPIODAT_OFF);
|
|
|
|
if (value)
|
|
dat |= 1 << offset;
|
|
else
|
|
dat &= ~(1 << offset);
|
|
|
|
__raw_writel(dat, base + GPIODAT_OFF);
|
|
__raw_writel(con, regcon);
|
|
__raw_writel(dat, base + GPIODAT_OFF);
|
|
|
|
pr_debug("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PLAT_S3C24XX
|
|
/* The next set of routines are for the case of s3c24xx bank a */
|
|
|
|
static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
|
|
unsigned offset, int value)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
void __iomem *base = ourchip->base;
|
|
unsigned long flags;
|
|
unsigned long dat;
|
|
unsigned long con;
|
|
|
|
local_irq_save(flags);
|
|
|
|
con = __raw_readl(base + 0x00);
|
|
dat = __raw_readl(base + 0x04);
|
|
|
|
dat &= ~(1 << offset);
|
|
if (value)
|
|
dat |= 1 << offset;
|
|
|
|
__raw_writel(dat, base + 0x04);
|
|
|
|
con &= ~(1 << offset);
|
|
|
|
__raw_writel(con, base + 0x00);
|
|
__raw_writel(dat, base + 0x04);
|
|
|
|
local_irq_restore(flags);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* The next set of routines are for the case of s5p64x0 bank r */
|
|
|
|
static int s5p64x0_gpiolib_rbank_input(struct gpio_chip *chip,
|
|
unsigned int offset)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
void __iomem *base = ourchip->base;
|
|
void __iomem *regcon = base;
|
|
unsigned long con;
|
|
unsigned long flags;
|
|
|
|
switch (offset) {
|
|
case 6:
|
|
offset += 1;
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
case 4:
|
|
case 5:
|
|
regcon -= 4;
|
|
break;
|
|
default:
|
|
offset -= 7;
|
|
break;
|
|
}
|
|
|
|
samsung_gpio_lock(ourchip, flags);
|
|
|
|
con = __raw_readl(regcon);
|
|
con &= ~(0xf << con_4bit_shift(offset));
|
|
__raw_writel(con, regcon);
|
|
|
|
samsung_gpio_unlock(ourchip, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int s5p64x0_gpiolib_rbank_output(struct gpio_chip *chip,
|
|
unsigned int offset, int value)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
void __iomem *base = ourchip->base;
|
|
void __iomem *regcon = base;
|
|
unsigned long con;
|
|
unsigned long dat;
|
|
unsigned long flags;
|
|
unsigned con_offset = offset;
|
|
|
|
switch (con_offset) {
|
|
case 6:
|
|
con_offset += 1;
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
case 4:
|
|
case 5:
|
|
regcon -= 4;
|
|
break;
|
|
default:
|
|
con_offset -= 7;
|
|
break;
|
|
}
|
|
|
|
samsung_gpio_lock(ourchip, flags);
|
|
|
|
con = __raw_readl(regcon);
|
|
con &= ~(0xf << con_4bit_shift(con_offset));
|
|
con |= 0x1 << con_4bit_shift(con_offset);
|
|
|
|
dat = __raw_readl(base + GPIODAT_OFF);
|
|
if (value)
|
|
dat |= 1 << offset;
|
|
else
|
|
dat &= ~(1 << offset);
|
|
|
|
__raw_writel(con, regcon);
|
|
__raw_writel(dat, base + GPIODAT_OFF);
|
|
|
|
samsung_gpio_unlock(ourchip, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void samsung_gpiolib_set(struct gpio_chip *chip,
|
|
unsigned offset, int value)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
void __iomem *base = ourchip->base;
|
|
unsigned long flags;
|
|
unsigned long dat;
|
|
|
|
samsung_gpio_lock(ourchip, flags);
|
|
|
|
dat = __raw_readl(base + 0x04);
|
|
dat &= ~(1 << offset);
|
|
if (value)
|
|
dat |= 1 << offset;
|
|
__raw_writel(dat, base + 0x04);
|
|
|
|
samsung_gpio_unlock(ourchip, flags);
|
|
}
|
|
|
|
static int samsung_gpiolib_get(struct gpio_chip *chip, unsigned offset)
|
|
{
|
|
struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
|
|
unsigned long val;
|
|
|
|
val = __raw_readl(ourchip->base + 0x04);
|
|
val >>= offset;
|
|
val &= 1;
|
|
|
|
return val;
|
|
}
|
|
|
|
/*
|
|
* CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios
|
|
* for use with the configuration calls, and other parts of the s3c gpiolib
|
|
* support code.
|
|
*
|
|
* Not all s3c support code will need this, as some configurations of cpu
|
|
* may only support one or two different configuration options and have an
|
|
* easy gpio to samsung_gpio_chip mapping function. If this is the case, then
|
|
* the machine support file should provide its own samsung_gpiolib_getchip()
|
|
* and any other necessary functions.
|
|
*/
|
|
|
|
#ifdef CONFIG_S3C_GPIO_TRACK
|
|
struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END];
|
|
|
|
static __init void s3c_gpiolib_track(struct samsung_gpio_chip *chip)
|
|
{
|
|
unsigned int gpn;
|
|
int i;
|
|
|
|
gpn = chip->chip.base;
|
|
for (i = 0; i < chip->chip.ngpio; i++, gpn++) {
|
|
BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios));
|
|
s3c_gpios[gpn] = chip;
|
|
}
|
|
}
|
|
#endif /* CONFIG_S3C_GPIO_TRACK */
|
|
|
|
/*
|
|
* samsung_gpiolib_add() - add the Samsung gpio_chip.
|
|
* @chip: The chip to register
|
|
*
|
|
* This is a wrapper to gpiochip_add() that takes our specific gpio chip
|
|
* information and makes the necessary alterations for the platform and
|
|
* notes the information for use with the configuration systems and any
|
|
* other parts of the system.
|
|
*/
|
|
|
|
static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
|
|
{
|
|
struct gpio_chip *gc = &chip->chip;
|
|
int ret;
|
|
|
|
BUG_ON(!chip->base);
|
|
BUG_ON(!gc->label);
|
|
BUG_ON(!gc->ngpio);
|
|
|
|
spin_lock_init(&chip->lock);
|
|
|
|
if (!gc->direction_input)
|
|
gc->direction_input = samsung_gpiolib_2bit_input;
|
|
if (!gc->direction_output)
|
|
gc->direction_output = samsung_gpiolib_2bit_output;
|
|
if (!gc->set)
|
|
gc->set = samsung_gpiolib_set;
|
|
if (!gc->get)
|
|
gc->get = samsung_gpiolib_get;
|
|
|
|
#ifdef CONFIG_PM
|
|
if (chip->pm != NULL) {
|
|
if (!chip->pm->save || !chip->pm->resume)
|
|
pr_err("gpio: %s has missing PM functions\n",
|
|
gc->label);
|
|
} else
|
|
pr_err("gpio: %s has no PM function\n", gc->label);
|
|
#endif
|
|
|
|
/* gpiochip_add() prints own failure message on error. */
|
|
ret = gpiochip_add(gc);
|
|
if (ret >= 0)
|
|
s3c_gpiolib_track(chip);
|
|
}
|
|
|
|
static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
|
|
int nr_chips, void __iomem *base)
|
|
{
|
|
int i;
|
|
struct gpio_chip *gc = &chip->chip;
|
|
|
|
for (i = 0 ; i < nr_chips; i++, chip++) {
|
|
/* skip banks not present on SoC */
|
|
if (chip->chip.base >= S3C_GPIO_END)
|
|
continue;
|
|
|
|
if (!chip->config)
|
|
chip->config = &s3c24xx_gpiocfg_default;
|
|
if (!chip->pm)
|
|
chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
|
|
if ((base != NULL) && (chip->base == NULL))
|
|
chip->base = base + ((i) * 0x10);
|
|
|
|
if (!gc->direction_input)
|
|
gc->direction_input = samsung_gpiolib_2bit_input;
|
|
if (!gc->direction_output)
|
|
gc->direction_output = samsung_gpiolib_2bit_output;
|
|
|
|
samsung_gpiolib_add(chip);
|
|
}
|
|
}
|
|
|
|
static void __init samsung_gpiolib_add_2bit_chips(struct samsung_gpio_chip *chip,
|
|
int nr_chips, void __iomem *base,
|
|
unsigned int offset)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0 ; i < nr_chips; i++, chip++) {
|
|
chip->chip.direction_input = samsung_gpiolib_2bit_input;
|
|
chip->chip.direction_output = samsung_gpiolib_2bit_output;
|
|
|
|
if (!chip->config)
|
|
chip->config = &samsung_gpio_cfgs[7];
|
|
if (!chip->pm)
|
|
chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
|
|
if ((base != NULL) && (chip->base == NULL))
|
|
chip->base = base + ((i) * offset);
|
|
|
|
samsung_gpiolib_add(chip);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* samsung_gpiolib_add_4bit_chips - 4bit single register GPIO config.
|
|
* @chip: The gpio chip that is being configured.
|
|
* @nr_chips: The no of chips (gpio ports) for the GPIO being configured.
|
|
*
|
|
* This helper deal with the GPIO cases where the control register has 4 bits
|
|
* of control per GPIO, generally in the form of:
|
|
* 0000 = Input
|
|
* 0001 = Output
|
|
* others = Special functions (dependent on bank)
|
|
*
|
|
* Note, since the code to deal with the case where there are two control
|
|
* registers instead of one, we do not have a separate set of function
|
|
* (samsung_gpiolib_add_4bit2_chips)for each case.
|
|
*/
|
|
|
|
static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip,
|
|
int nr_chips, void __iomem *base)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0 ; i < nr_chips; i++, chip++) {
|
|
chip->chip.direction_input = samsung_gpiolib_4bit_input;
|
|
chip->chip.direction_output = samsung_gpiolib_4bit_output;
|
|
|
|
if (!chip->config)
|
|
chip->config = &samsung_gpio_cfgs[2];
|
|
if (!chip->pm)
|
|
chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
|
|
if ((base != NULL) && (chip->base == NULL))
|
|
chip->base = base + ((i) * 0x20);
|
|
|
|
chip->bitmap_gpio_int = 0;
|
|
|
|
samsung_gpiolib_add(chip);
|
|
}
|
|
}
|
|
|
|
static void __init samsung_gpiolib_add_4bit2_chips(struct samsung_gpio_chip *chip,
|
|
int nr_chips)
|
|
{
|
|
for (; nr_chips > 0; nr_chips--, chip++) {
|
|
chip->chip.direction_input = samsung_gpiolib_4bit2_input;
|
|
chip->chip.direction_output = samsung_gpiolib_4bit2_output;
|
|
|
|
if (!chip->config)
|
|
chip->config = &samsung_gpio_cfgs[2];
|
|
if (!chip->pm)
|
|
chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
|
|
|
|
samsung_gpiolib_add(chip);
|
|
}
|
|
}
|
|
|
|
static void __init s5p64x0_gpiolib_add_rbank(struct samsung_gpio_chip *chip,
|
|
int nr_chips)
|
|
{
|
|
for (; nr_chips > 0; nr_chips--, chip++) {
|
|
chip->chip.direction_input = s5p64x0_gpiolib_rbank_input;
|
|
chip->chip.direction_output = s5p64x0_gpiolib_rbank_output;
|
|
|
|
if (!chip->pm)
|
|
chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
|
|
|
|
samsung_gpiolib_add(chip);
|
|
}
|
|
}
|
|
|
|
int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
|
|
{
|
|
struct samsung_gpio_chip *samsung_chip = container_of(chip, struct samsung_gpio_chip, chip);
|
|
|
|
return samsung_chip->irq_base + offset;
|
|
}
|
|
|
|
#ifdef CONFIG_PLAT_S3C24XX
|
|
static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
|
|
{
|
|
if (offset < 4) {
|
|
if (soc_is_s3c2412())
|
|
return IRQ_EINT0_2412 + offset;
|
|
else
|
|
return IRQ_EINT0 + offset;
|
|
}
|
|
|
|
if (offset < 8)
|
|
return IRQ_EINT4 + offset - 4;
|
|
|
|
return -EINVAL;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_PLAT_S3C64XX
|
|
static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin)
|
|
{
|
|
return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
|
|
}
|
|
|
|
static int s3c64xx_gpiolib_lbank_to_irq(struct gpio_chip *chip, unsigned pin)
|
|
{
|
|
return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO;
|
|
}
|
|
#endif
|
|
|
|
struct samsung_gpio_chip s3c24xx_gpios[] = {
|
|
#ifdef CONFIG_PLAT_S3C24XX
|
|
{
|
|
.config = &s3c24xx_gpiocfg_banka,
|
|
.chip = {
|
|
.base = S3C2410_GPA(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOA",
|
|
.ngpio = 24,
|
|
.direction_input = s3c24xx_gpiolib_banka_input,
|
|
.direction_output = s3c24xx_gpiolib_banka_output,
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C2410_GPB(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOB",
|
|
.ngpio = 16,
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C2410_GPC(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOC",
|
|
.ngpio = 16,
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C2410_GPD(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOD",
|
|
.ngpio = 16,
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C2410_GPE(0),
|
|
.label = "GPIOE",
|
|
.owner = THIS_MODULE,
|
|
.ngpio = 16,
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C2410_GPF(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOF",
|
|
.ngpio = 8,
|
|
.to_irq = s3c24xx_gpiolib_fbank_to_irq,
|
|
},
|
|
}, {
|
|
.irq_base = IRQ_EINT8,
|
|
.chip = {
|
|
.base = S3C2410_GPG(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOG",
|
|
.ngpio = 16,
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C2410_GPH(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOH",
|
|
.ngpio = 11,
|
|
},
|
|
},
|
|
/* GPIOS for the S3C2443 and later devices. */
|
|
{
|
|
.base = S3C2440_GPJCON,
|
|
.chip = {
|
|
.base = S3C2410_GPJ(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOJ",
|
|
.ngpio = 16,
|
|
},
|
|
}, {
|
|
.base = S3C2443_GPKCON,
|
|
.chip = {
|
|
.base = S3C2410_GPK(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOK",
|
|
.ngpio = 16,
|
|
},
|
|
}, {
|
|
.base = S3C2443_GPLCON,
|
|
.chip = {
|
|
.base = S3C2410_GPL(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOL",
|
|
.ngpio = 15,
|
|
},
|
|
}, {
|
|
.base = S3C2443_GPMCON,
|
|
.chip = {
|
|
.base = S3C2410_GPM(0),
|
|
.owner = THIS_MODULE,
|
|
.label = "GPIOM",
|
|
.ngpio = 2,
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* GPIO bank summary:
|
|
*
|
|
* Bank GPIOs Style SlpCon ExtInt Group
|
|
* A 8 4Bit Yes 1
|
|
* B 7 4Bit Yes 1
|
|
* C 8 4Bit Yes 2
|
|
* D 5 4Bit Yes 3
|
|
* E 5 4Bit Yes None
|
|
* F 16 2Bit Yes 4 [1]
|
|
* G 7 4Bit Yes 5
|
|
* H 10 4Bit[2] Yes 6
|
|
* I 16 2Bit Yes None
|
|
* J 12 2Bit Yes None
|
|
* K 16 4Bit[2] No None
|
|
* L 15 4Bit[2] No None
|
|
* M 6 4Bit No IRQ_EINT
|
|
* N 16 2Bit No IRQ_EINT
|
|
* O 16 2Bit Yes 7
|
|
* P 15 2Bit Yes 8
|
|
* Q 9 2Bit Yes 9
|
|
*
|
|
* [1] BANKF pins 14,15 do not form part of the external interrupt sources
|
|
* [2] BANK has two control registers, GPxCON0 and GPxCON1
|
|
*/
|
|
|
|
static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
|
|
#ifdef CONFIG_PLAT_S3C64XX
|
|
{
|
|
.chip = {
|
|
.base = S3C64XX_GPA(0),
|
|
.ngpio = S3C64XX_GPIO_A_NR,
|
|
.label = "GPA",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C64XX_GPB(0),
|
|
.ngpio = S3C64XX_GPIO_B_NR,
|
|
.label = "GPB",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C64XX_GPC(0),
|
|
.ngpio = S3C64XX_GPIO_C_NR,
|
|
.label = "GPC",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S3C64XX_GPD(0),
|
|
.ngpio = S3C64XX_GPIO_D_NR,
|
|
.label = "GPD",
|
|
},
|
|
}, {
|
|
.config = &samsung_gpio_cfgs[0],
|
|
.chip = {
|
|
.base = S3C64XX_GPE(0),
|
|
.ngpio = S3C64XX_GPIO_E_NR,
|
|
.label = "GPE",
|
|
},
|
|
}, {
|
|
.base = S3C64XX_GPG_BASE,
|
|
.chip = {
|
|
.base = S3C64XX_GPG(0),
|
|
.ngpio = S3C64XX_GPIO_G_NR,
|
|
.label = "GPG",
|
|
},
|
|
}, {
|
|
.base = S3C64XX_GPM_BASE,
|
|
.config = &samsung_gpio_cfgs[1],
|
|
.chip = {
|
|
.base = S3C64XX_GPM(0),
|
|
.ngpio = S3C64XX_GPIO_M_NR,
|
|
.label = "GPM",
|
|
.to_irq = s3c64xx_gpiolib_mbank_to_irq,
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
|
|
#ifdef CONFIG_PLAT_S3C64XX
|
|
{
|
|
.base = S3C64XX_GPH_BASE + 0x4,
|
|
.chip = {
|
|
.base = S3C64XX_GPH(0),
|
|
.ngpio = S3C64XX_GPIO_H_NR,
|
|
.label = "GPH",
|
|
},
|
|
}, {
|
|
.base = S3C64XX_GPK_BASE + 0x4,
|
|
.config = &samsung_gpio_cfgs[0],
|
|
.chip = {
|
|
.base = S3C64XX_GPK(0),
|
|
.ngpio = S3C64XX_GPIO_K_NR,
|
|
.label = "GPK",
|
|
},
|
|
}, {
|
|
.base = S3C64XX_GPL_BASE + 0x4,
|
|
.config = &samsung_gpio_cfgs[1],
|
|
.chip = {
|
|
.base = S3C64XX_GPL(0),
|
|
.ngpio = S3C64XX_GPIO_L_NR,
|
|
.label = "GPL",
|
|
.to_irq = s3c64xx_gpiolib_lbank_to_irq,
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = {
|
|
#ifdef CONFIG_PLAT_S3C64XX
|
|
{
|
|
.base = S3C64XX_GPF_BASE,
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S3C64XX_GPF(0),
|
|
.ngpio = S3C64XX_GPIO_F_NR,
|
|
.label = "GPF",
|
|
},
|
|
}, {
|
|
.config = &samsung_gpio_cfgs[7],
|
|
.chip = {
|
|
.base = S3C64XX_GPI(0),
|
|
.ngpio = S3C64XX_GPIO_I_NR,
|
|
.label = "GPI",
|
|
},
|
|
}, {
|
|
.config = &samsung_gpio_cfgs[7],
|
|
.chip = {
|
|
.base = S3C64XX_GPJ(0),
|
|
.ngpio = S3C64XX_GPIO_J_NR,
|
|
.label = "GPJ",
|
|
},
|
|
}, {
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S3C64XX_GPO(0),
|
|
.ngpio = S3C64XX_GPIO_O_NR,
|
|
.label = "GPO",
|
|
},
|
|
}, {
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S3C64XX_GPP(0),
|
|
.ngpio = S3C64XX_GPIO_P_NR,
|
|
.label = "GPP",
|
|
},
|
|
}, {
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S3C64XX_GPQ(0),
|
|
.ngpio = S3C64XX_GPIO_Q_NR,
|
|
.label = "GPQ",
|
|
},
|
|
}, {
|
|
.base = S3C64XX_GPN_BASE,
|
|
.irq_base = IRQ_EINT(0),
|
|
.config = &samsung_gpio_cfgs[5],
|
|
.chip = {
|
|
.base = S3C64XX_GPN(0),
|
|
.ngpio = S3C64XX_GPIO_N_NR,
|
|
.label = "GPN",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* S5P6440 GPIO bank summary:
|
|
*
|
|
* Bank GPIOs Style SlpCon ExtInt Group
|
|
* A 6 4Bit Yes 1
|
|
* B 7 4Bit Yes 1
|
|
* C 8 4Bit Yes 2
|
|
* F 2 2Bit Yes 4 [1]
|
|
* G 7 4Bit Yes 5
|
|
* H 10 4Bit[2] Yes 6
|
|
* I 16 2Bit Yes None
|
|
* J 12 2Bit Yes None
|
|
* N 16 2Bit No IRQ_EINT
|
|
* P 8 2Bit Yes 8
|
|
* R 15 4Bit[2] Yes 8
|
|
*/
|
|
|
|
static struct samsung_gpio_chip s5p6440_gpios_4bit[] = {
|
|
#ifdef CONFIG_CPU_S5P6440
|
|
{
|
|
.chip = {
|
|
.base = S5P6440_GPA(0),
|
|
.ngpio = S5P6440_GPIO_A_NR,
|
|
.label = "GPA",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5P6440_GPB(0),
|
|
.ngpio = S5P6440_GPIO_B_NR,
|
|
.label = "GPB",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5P6440_GPC(0),
|
|
.ngpio = S5P6440_GPIO_C_NR,
|
|
.label = "GPC",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPG_BASE,
|
|
.chip = {
|
|
.base = S5P6440_GPG(0),
|
|
.ngpio = S5P6440_GPIO_G_NR,
|
|
.label = "GPG",
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static struct samsung_gpio_chip s5p6440_gpios_4bit2[] = {
|
|
#ifdef CONFIG_CPU_S5P6440
|
|
{
|
|
.base = S5P64X0_GPH_BASE + 0x4,
|
|
.chip = {
|
|
.base = S5P6440_GPH(0),
|
|
.ngpio = S5P6440_GPIO_H_NR,
|
|
.label = "GPH",
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static struct samsung_gpio_chip s5p6440_gpios_rbank[] = {
|
|
#ifdef CONFIG_CPU_S5P6440
|
|
{
|
|
.base = S5P64X0_GPR_BASE + 0x4,
|
|
.config = &s5p64x0_gpio_cfg_rbank,
|
|
.chip = {
|
|
.base = S5P6440_GPR(0),
|
|
.ngpio = S5P6440_GPIO_R_NR,
|
|
.label = "GPR",
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static struct samsung_gpio_chip s5p6440_gpios_2bit[] = {
|
|
#ifdef CONFIG_CPU_S5P6440
|
|
{
|
|
.base = S5P64X0_GPF_BASE,
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S5P6440_GPF(0),
|
|
.ngpio = S5P6440_GPIO_F_NR,
|
|
.label = "GPF",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPI_BASE,
|
|
.config = &samsung_gpio_cfgs[4],
|
|
.chip = {
|
|
.base = S5P6440_GPI(0),
|
|
.ngpio = S5P6440_GPIO_I_NR,
|
|
.label = "GPI",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPJ_BASE,
|
|
.config = &samsung_gpio_cfgs[4],
|
|
.chip = {
|
|
.base = S5P6440_GPJ(0),
|
|
.ngpio = S5P6440_GPIO_J_NR,
|
|
.label = "GPJ",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPN_BASE,
|
|
.config = &samsung_gpio_cfgs[5],
|
|
.chip = {
|
|
.base = S5P6440_GPN(0),
|
|
.ngpio = S5P6440_GPIO_N_NR,
|
|
.label = "GPN",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPP_BASE,
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S5P6440_GPP(0),
|
|
.ngpio = S5P6440_GPIO_P_NR,
|
|
.label = "GPP",
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* S5P6450 GPIO bank summary:
|
|
*
|
|
* Bank GPIOs Style SlpCon ExtInt Group
|
|
* A 6 4Bit Yes 1
|
|
* B 7 4Bit Yes 1
|
|
* C 8 4Bit Yes 2
|
|
* D 8 4Bit Yes None
|
|
* F 2 2Bit Yes None
|
|
* G 14 4Bit[2] Yes 5
|
|
* H 10 4Bit[2] Yes 6
|
|
* I 16 2Bit Yes None
|
|
* J 12 2Bit Yes None
|
|
* K 5 4Bit Yes None
|
|
* N 16 2Bit No IRQ_EINT
|
|
* P 11 2Bit Yes 8
|
|
* Q 14 2Bit Yes None
|
|
* R 15 4Bit[2] Yes None
|
|
* S 8 2Bit Yes None
|
|
*
|
|
* [1] BANKF pins 14,15 do not form part of the external interrupt sources
|
|
* [2] BANK has two control registers, GPxCON0 and GPxCON1
|
|
*/
|
|
|
|
static struct samsung_gpio_chip s5p6450_gpios_4bit[] = {
|
|
#ifdef CONFIG_CPU_S5P6450
|
|
{
|
|
.chip = {
|
|
.base = S5P6450_GPA(0),
|
|
.ngpio = S5P6450_GPIO_A_NR,
|
|
.label = "GPA",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5P6450_GPB(0),
|
|
.ngpio = S5P6450_GPIO_B_NR,
|
|
.label = "GPB",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5P6450_GPC(0),
|
|
.ngpio = S5P6450_GPIO_C_NR,
|
|
.label = "GPC",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5P6450_GPD(0),
|
|
.ngpio = S5P6450_GPIO_D_NR,
|
|
.label = "GPD",
|
|
},
|
|
}, {
|
|
.base = S5P6450_GPK_BASE,
|
|
.chip = {
|
|
.base = S5P6450_GPK(0),
|
|
.ngpio = S5P6450_GPIO_K_NR,
|
|
.label = "GPK",
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static struct samsung_gpio_chip s5p6450_gpios_4bit2[] = {
|
|
#ifdef CONFIG_CPU_S5P6450
|
|
{
|
|
.base = S5P64X0_GPG_BASE + 0x4,
|
|
.chip = {
|
|
.base = S5P6450_GPG(0),
|
|
.ngpio = S5P6450_GPIO_G_NR,
|
|
.label = "GPG",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPH_BASE + 0x4,
|
|
.chip = {
|
|
.base = S5P6450_GPH(0),
|
|
.ngpio = S5P6450_GPIO_H_NR,
|
|
.label = "GPH",
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static struct samsung_gpio_chip s5p6450_gpios_rbank[] = {
|
|
#ifdef CONFIG_CPU_S5P6450
|
|
{
|
|
.base = S5P64X0_GPR_BASE + 0x4,
|
|
.config = &s5p64x0_gpio_cfg_rbank,
|
|
.chip = {
|
|
.base = S5P6450_GPR(0),
|
|
.ngpio = S5P6450_GPIO_R_NR,
|
|
.label = "GPR",
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static struct samsung_gpio_chip s5p6450_gpios_2bit[] = {
|
|
#ifdef CONFIG_CPU_S5P6450
|
|
{
|
|
.base = S5P64X0_GPF_BASE,
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S5P6450_GPF(0),
|
|
.ngpio = S5P6450_GPIO_F_NR,
|
|
.label = "GPF",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPI_BASE,
|
|
.config = &samsung_gpio_cfgs[4],
|
|
.chip = {
|
|
.base = S5P6450_GPI(0),
|
|
.ngpio = S5P6450_GPIO_I_NR,
|
|
.label = "GPI",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPJ_BASE,
|
|
.config = &samsung_gpio_cfgs[4],
|
|
.chip = {
|
|
.base = S5P6450_GPJ(0),
|
|
.ngpio = S5P6450_GPIO_J_NR,
|
|
.label = "GPJ",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPN_BASE,
|
|
.config = &samsung_gpio_cfgs[5],
|
|
.chip = {
|
|
.base = S5P6450_GPN(0),
|
|
.ngpio = S5P6450_GPIO_N_NR,
|
|
.label = "GPN",
|
|
},
|
|
}, {
|
|
.base = S5P64X0_GPP_BASE,
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S5P6450_GPP(0),
|
|
.ngpio = S5P6450_GPIO_P_NR,
|
|
.label = "GPP",
|
|
},
|
|
}, {
|
|
.base = S5P6450_GPQ_BASE,
|
|
.config = &samsung_gpio_cfgs[5],
|
|
.chip = {
|
|
.base = S5P6450_GPQ(0),
|
|
.ngpio = S5P6450_GPIO_Q_NR,
|
|
.label = "GPQ",
|
|
},
|
|
}, {
|
|
.base = S5P6450_GPS_BASE,
|
|
.config = &samsung_gpio_cfgs[6],
|
|
.chip = {
|
|
.base = S5P6450_GPS(0),
|
|
.ngpio = S5P6450_GPIO_S_NR,
|
|
.label = "GPS",
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* S5PC100 GPIO bank summary:
|
|
*
|
|
* Bank GPIOs Style INT Type
|
|
* A0 8 4Bit GPIO_INT0
|
|
* A1 5 4Bit GPIO_INT1
|
|
* B 8 4Bit GPIO_INT2
|
|
* C 5 4Bit GPIO_INT3
|
|
* D 7 4Bit GPIO_INT4
|
|
* E0 8 4Bit GPIO_INT5
|
|
* E1 6 4Bit GPIO_INT6
|
|
* F0 8 4Bit GPIO_INT7
|
|
* F1 8 4Bit GPIO_INT8
|
|
* F2 8 4Bit GPIO_INT9
|
|
* F3 4 4Bit GPIO_INT10
|
|
* G0 8 4Bit GPIO_INT11
|
|
* G1 3 4Bit GPIO_INT12
|
|
* G2 7 4Bit GPIO_INT13
|
|
* G3 7 4Bit GPIO_INT14
|
|
* H0 8 4Bit WKUP_INT
|
|
* H1 8 4Bit WKUP_INT
|
|
* H2 8 4Bit WKUP_INT
|
|
* H3 8 4Bit WKUP_INT
|
|
* I 8 4Bit GPIO_INT15
|
|
* J0 8 4Bit GPIO_INT16
|
|
* J1 5 4Bit GPIO_INT17
|
|
* J2 8 4Bit GPIO_INT18
|
|
* J3 8 4Bit GPIO_INT19
|
|
* J4 4 4Bit GPIO_INT20
|
|
* K0 8 4Bit None
|
|
* K1 6 4Bit None
|
|
* K2 8 4Bit None
|
|
* K3 8 4Bit None
|
|
* L0 8 4Bit None
|
|
* L1 8 4Bit None
|
|
* L2 8 4Bit None
|
|
* L3 8 4Bit None
|
|
*/
|
|
|
|
static struct samsung_gpio_chip s5pc100_gpios_4bit[] = {
|
|
#ifdef CONFIG_CPU_S5PC100
|
|
{
|
|
.chip = {
|
|
.base = S5PC100_GPA0(0),
|
|
.ngpio = S5PC100_GPIO_A0_NR,
|
|
.label = "GPA0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPA1(0),
|
|
.ngpio = S5PC100_GPIO_A1_NR,
|
|
.label = "GPA1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPB(0),
|
|
.ngpio = S5PC100_GPIO_B_NR,
|
|
.label = "GPB",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPC(0),
|
|
.ngpio = S5PC100_GPIO_C_NR,
|
|
.label = "GPC",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPD(0),
|
|
.ngpio = S5PC100_GPIO_D_NR,
|
|
.label = "GPD",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPE0(0),
|
|
.ngpio = S5PC100_GPIO_E0_NR,
|
|
.label = "GPE0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPE1(0),
|
|
.ngpio = S5PC100_GPIO_E1_NR,
|
|
.label = "GPE1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPF0(0),
|
|
.ngpio = S5PC100_GPIO_F0_NR,
|
|
.label = "GPF0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPF1(0),
|
|
.ngpio = S5PC100_GPIO_F1_NR,
|
|
.label = "GPF1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPF2(0),
|
|
.ngpio = S5PC100_GPIO_F2_NR,
|
|
.label = "GPF2",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPF3(0),
|
|
.ngpio = S5PC100_GPIO_F3_NR,
|
|
.label = "GPF3",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPG0(0),
|
|
.ngpio = S5PC100_GPIO_G0_NR,
|
|
.label = "GPG0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPG1(0),
|
|
.ngpio = S5PC100_GPIO_G1_NR,
|
|
.label = "GPG1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPG2(0),
|
|
.ngpio = S5PC100_GPIO_G2_NR,
|
|
.label = "GPG2",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPG3(0),
|
|
.ngpio = S5PC100_GPIO_G3_NR,
|
|
.label = "GPG3",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPI(0),
|
|
.ngpio = S5PC100_GPIO_I_NR,
|
|
.label = "GPI",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPJ0(0),
|
|
.ngpio = S5PC100_GPIO_J0_NR,
|
|
.label = "GPJ0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPJ1(0),
|
|
.ngpio = S5PC100_GPIO_J1_NR,
|
|
.label = "GPJ1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPJ2(0),
|
|
.ngpio = S5PC100_GPIO_J2_NR,
|
|
.label = "GPJ2",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPJ3(0),
|
|
.ngpio = S5PC100_GPIO_J3_NR,
|
|
.label = "GPJ3",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPJ4(0),
|
|
.ngpio = S5PC100_GPIO_J4_NR,
|
|
.label = "GPJ4",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPK0(0),
|
|
.ngpio = S5PC100_GPIO_K0_NR,
|
|
.label = "GPK0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPK1(0),
|
|
.ngpio = S5PC100_GPIO_K1_NR,
|
|
.label = "GPK1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPK2(0),
|
|
.ngpio = S5PC100_GPIO_K2_NR,
|
|
.label = "GPK2",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPK3(0),
|
|
.ngpio = S5PC100_GPIO_K3_NR,
|
|
.label = "GPK3",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPL0(0),
|
|
.ngpio = S5PC100_GPIO_L0_NR,
|
|
.label = "GPL0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPL1(0),
|
|
.ngpio = S5PC100_GPIO_L1_NR,
|
|
.label = "GPL1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPL2(0),
|
|
.ngpio = S5PC100_GPIO_L2_NR,
|
|
.label = "GPL2",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPL3(0),
|
|
.ngpio = S5PC100_GPIO_L3_NR,
|
|
.label = "GPL3",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PC100_GPL4(0),
|
|
.ngpio = S5PC100_GPIO_L4_NR,
|
|
.label = "GPL4",
|
|
},
|
|
}, {
|
|
.base = (S5P_VA_GPIO + 0xC00),
|
|
.irq_base = IRQ_EINT(0),
|
|
.chip = {
|
|
.base = S5PC100_GPH0(0),
|
|
.ngpio = S5PC100_GPIO_H0_NR,
|
|
.label = "GPH0",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
}, {
|
|
.base = (S5P_VA_GPIO + 0xC20),
|
|
.irq_base = IRQ_EINT(8),
|
|
.chip = {
|
|
.base = S5PC100_GPH1(0),
|
|
.ngpio = S5PC100_GPIO_H1_NR,
|
|
.label = "GPH1",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
}, {
|
|
.base = (S5P_VA_GPIO + 0xC40),
|
|
.irq_base = IRQ_EINT(16),
|
|
.chip = {
|
|
.base = S5PC100_GPH2(0),
|
|
.ngpio = S5PC100_GPIO_H2_NR,
|
|
.label = "GPH2",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
}, {
|
|
.base = (S5P_VA_GPIO + 0xC60),
|
|
.irq_base = IRQ_EINT(24),
|
|
.chip = {
|
|
.base = S5PC100_GPH3(0),
|
|
.ngpio = S5PC100_GPIO_H3_NR,
|
|
.label = "GPH3",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* Followings are the gpio banks in S5PV210/S5PC110
|
|
*
|
|
* The 'config' member when left to NULL, is initialized to the default
|
|
* structure samsung_gpio_cfgs[3] in the init function below.
|
|
*
|
|
* The 'base' member is also initialized in the init function below.
|
|
* Note: The initialization of 'base' member of samsung_gpio_chip structure
|
|
* uses the above macro and depends on the banks being listed in order here.
|
|
*/
|
|
|
|
static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
|
|
#ifdef CONFIG_CPU_S5PV210
|
|
{
|
|
.chip = {
|
|
.base = S5PV210_GPA0(0),
|
|
.ngpio = S5PV210_GPIO_A0_NR,
|
|
.label = "GPA0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPA1(0),
|
|
.ngpio = S5PV210_GPIO_A1_NR,
|
|
.label = "GPA1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPB(0),
|
|
.ngpio = S5PV210_GPIO_B_NR,
|
|
.label = "GPB",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPC0(0),
|
|
.ngpio = S5PV210_GPIO_C0_NR,
|
|
.label = "GPC0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPC1(0),
|
|
.ngpio = S5PV210_GPIO_C1_NR,
|
|
.label = "GPC1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPD0(0),
|
|
.ngpio = S5PV210_GPIO_D0_NR,
|
|
.label = "GPD0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPD1(0),
|
|
.ngpio = S5PV210_GPIO_D1_NR,
|
|
.label = "GPD1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPE0(0),
|
|
.ngpio = S5PV210_GPIO_E0_NR,
|
|
.label = "GPE0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPE1(0),
|
|
.ngpio = S5PV210_GPIO_E1_NR,
|
|
.label = "GPE1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPF0(0),
|
|
.ngpio = S5PV210_GPIO_F0_NR,
|
|
.label = "GPF0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPF1(0),
|
|
.ngpio = S5PV210_GPIO_F1_NR,
|
|
.label = "GPF1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPF2(0),
|
|
.ngpio = S5PV210_GPIO_F2_NR,
|
|
.label = "GPF2",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPF3(0),
|
|
.ngpio = S5PV210_GPIO_F3_NR,
|
|
.label = "GPF3",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPG0(0),
|
|
.ngpio = S5PV210_GPIO_G0_NR,
|
|
.label = "GPG0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPG1(0),
|
|
.ngpio = S5PV210_GPIO_G1_NR,
|
|
.label = "GPG1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPG2(0),
|
|
.ngpio = S5PV210_GPIO_G2_NR,
|
|
.label = "GPG2",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPG3(0),
|
|
.ngpio = S5PV210_GPIO_G3_NR,
|
|
.label = "GPG3",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPI(0),
|
|
.ngpio = S5PV210_GPIO_I_NR,
|
|
.label = "GPI",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPJ0(0),
|
|
.ngpio = S5PV210_GPIO_J0_NR,
|
|
.label = "GPJ0",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPJ1(0),
|
|
.ngpio = S5PV210_GPIO_J1_NR,
|
|
.label = "GPJ1",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPJ2(0),
|
|
.ngpio = S5PV210_GPIO_J2_NR,
|
|
.label = "GPJ2",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPJ3(0),
|
|
.ngpio = S5PV210_GPIO_J3_NR,
|
|
.label = "GPJ3",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_GPJ4(0),
|
|
.ngpio = S5PV210_GPIO_J4_NR,
|
|
.label = "GPJ4",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_MP01(0),
|
|
.ngpio = S5PV210_GPIO_MP01_NR,
|
|
.label = "MP01",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_MP02(0),
|
|
.ngpio = S5PV210_GPIO_MP02_NR,
|
|
.label = "MP02",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_MP03(0),
|
|
.ngpio = S5PV210_GPIO_MP03_NR,
|
|
.label = "MP03",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_MP04(0),
|
|
.ngpio = S5PV210_GPIO_MP04_NR,
|
|
.label = "MP04",
|
|
},
|
|
}, {
|
|
.chip = {
|
|
.base = S5PV210_MP05(0),
|
|
.ngpio = S5PV210_GPIO_MP05_NR,
|
|
.label = "MP05",
|
|
},
|
|
}, {
|
|
.base = (S5P_VA_GPIO + 0xC00),
|
|
.irq_base = IRQ_EINT(0),
|
|
.chip = {
|
|
.base = S5PV210_GPH0(0),
|
|
.ngpio = S5PV210_GPIO_H0_NR,
|
|
.label = "GPH0",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
}, {
|
|
.base = (S5P_VA_GPIO + 0xC20),
|
|
.irq_base = IRQ_EINT(8),
|
|
.chip = {
|
|
.base = S5PV210_GPH1(0),
|
|
.ngpio = S5PV210_GPIO_H1_NR,
|
|
.label = "GPH1",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
}, {
|
|
.base = (S5P_VA_GPIO + 0xC40),
|
|
.irq_base = IRQ_EINT(16),
|
|
.chip = {
|
|
.base = S5PV210_GPH2(0),
|
|
.ngpio = S5PV210_GPIO_H2_NR,
|
|
.label = "GPH2",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
}, {
|
|
.base = (S5P_VA_GPIO + 0xC60),
|
|
.irq_base = IRQ_EINT(24),
|
|
.chip = {
|
|
.base = S5PV210_GPH3(0),
|
|
.ngpio = S5PV210_GPIO_H3_NR,
|
|
.label = "GPH3",
|
|
.to_irq = samsung_gpiolib_to_irq,
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
|
|
/* TODO: cleanup soc_is_* */
|
|
static __init int samsung_gpiolib_init(void)
|
|
{
|
|
struct samsung_gpio_chip *chip;
|
|
int i, nr_chips;
|
|
int group = 0;
|
|
|
|
#if defined(CONFIG_PINCTRL_EXYNOS) || defined(CONFIG_PINCTRL_EXYNOS5440)
|
|
/*
|
|
* This gpio driver includes support for device tree support and there
|
|
* are platforms using it. In order to maintain compatibility with those
|
|
* platforms, and to allow non-dt Exynos4210 platforms to use this
|
|
* gpiolib support, a check is added to find out if there is a active
|
|
* pin-controller driver support available. If it is available, this
|
|
* gpiolib support is ignored and the gpiolib support available in
|
|
* pin-controller driver is used. This is a temporary check and will go
|
|
* away when all of the Exynos4210 platforms have switched to using
|
|
* device tree and the pin-ctrl driver.
|
|
*/
|
|
struct device_node *pctrl_np;
|
|
static const struct of_device_id exynos_pinctrl_ids[] = {
|
|
{ .compatible = "samsung,s3c2412-pinctrl", },
|
|
{ .compatible = "samsung,s3c2416-pinctrl", },
|
|
{ .compatible = "samsung,s3c2440-pinctrl", },
|
|
{ .compatible = "samsung,s3c2450-pinctrl", },
|
|
{ .compatible = "samsung,exynos4210-pinctrl", },
|
|
{ .compatible = "samsung,exynos4x12-pinctrl", },
|
|
{ .compatible = "samsung,exynos5250-pinctrl", },
|
|
{ .compatible = "samsung,exynos5440-pinctrl", },
|
|
{ }
|
|
};
|
|
for_each_matching_node(pctrl_np, exynos_pinctrl_ids)
|
|
if (pctrl_np && of_device_is_available(pctrl_np))
|
|
return -ENODEV;
|
|
#endif
|
|
|
|
samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
|
|
|
|
if (soc_is_s3c24xx()) {
|
|
s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
|
|
ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
|
|
} else if (soc_is_s3c64xx()) {
|
|
samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
|
|
ARRAY_SIZE(s3c64xx_gpios_2bit),
|
|
S3C64XX_VA_GPIO + 0xE0, 0x20);
|
|
samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit,
|
|
ARRAY_SIZE(s3c64xx_gpios_4bit),
|
|
S3C64XX_VA_GPIO);
|
|
samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
|
|
ARRAY_SIZE(s3c64xx_gpios_4bit2));
|
|
} else if (soc_is_s5p6440()) {
|
|
samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit,
|
|
ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0);
|
|
samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit,
|
|
ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO);
|
|
samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2,
|
|
ARRAY_SIZE(s5p6440_gpios_4bit2));
|
|
s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank,
|
|
ARRAY_SIZE(s5p6440_gpios_rbank));
|
|
} else if (soc_is_s5p6450()) {
|
|
samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit,
|
|
ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0);
|
|
samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit,
|
|
ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO);
|
|
samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2,
|
|
ARRAY_SIZE(s5p6450_gpios_4bit2));
|
|
s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank,
|
|
ARRAY_SIZE(s5p6450_gpios_rbank));
|
|
} else if (soc_is_s5pc100()) {
|
|
group = 0;
|
|
chip = s5pc100_gpios_4bit;
|
|
nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
|
|
|
|
for (i = 0; i < nr_chips; i++, chip++) {
|
|
if (!chip->config) {
|
|
chip->config = &samsung_gpio_cfgs[3];
|
|
chip->group = group++;
|
|
}
|
|
}
|
|
samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO);
|
|
#if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT)
|
|
s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
|
|
#endif
|
|
} else if (soc_is_s5pv210()) {
|
|
group = 0;
|
|
chip = s5pv210_gpios_4bit;
|
|
nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
|
|
|
|
for (i = 0; i < nr_chips; i++, chip++) {
|
|
if (!chip->config) {
|
|
chip->config = &samsung_gpio_cfgs[3];
|
|
chip->group = group++;
|
|
}
|
|
}
|
|
samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO);
|
|
#if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT)
|
|
s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
|
|
#endif
|
|
} else {
|
|
WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
core_initcall(samsung_gpiolib_init);
|
|
|
|
int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
|
|
{
|
|
struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
|
|
unsigned long flags;
|
|
int offset;
|
|
int ret;
|
|
|
|
if (!chip)
|
|
return -EINVAL;
|
|
|
|
offset = pin - chip->chip.base;
|
|
|
|
samsung_gpio_lock(chip, flags);
|
|
ret = samsung_gpio_do_setcfg(chip, offset, config);
|
|
samsung_gpio_unlock(chip, flags);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(s3c_gpio_cfgpin);
|
|
|
|
int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
|
|
unsigned int cfg)
|
|
{
|
|
int ret;
|
|
|
|
for (; nr > 0; nr--, start++) {
|
|
ret = s3c_gpio_cfgpin(start, cfg);
|
|
if (ret != 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
|
|
|
|
int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
|
|
unsigned int cfg, samsung_gpio_pull_t pull)
|
|
{
|
|
int ret;
|
|
|
|
for (; nr > 0; nr--, start++) {
|
|
s3c_gpio_setpull(start, pull);
|
|
ret = s3c_gpio_cfgpin(start, cfg);
|
|
if (ret != 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
|
|
|
|
unsigned s3c_gpio_getcfg(unsigned int pin)
|
|
{
|
|
struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
|
|
unsigned long flags;
|
|
unsigned ret = 0;
|
|
int offset;
|
|
|
|
if (chip) {
|
|
offset = pin - chip->chip.base;
|
|
|
|
samsung_gpio_lock(chip, flags);
|
|
ret = samsung_gpio_do_getcfg(chip, offset);
|
|
samsung_gpio_unlock(chip, flags);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(s3c_gpio_getcfg);
|
|
|
|
int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull)
|
|
{
|
|
struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
|
|
unsigned long flags;
|
|
int offset, ret;
|
|
|
|
if (!chip)
|
|
return -EINVAL;
|
|
|
|
offset = pin - chip->chip.base;
|
|
|
|
samsung_gpio_lock(chip, flags);
|
|
ret = samsung_gpio_do_setpull(chip, offset, pull);
|
|
samsung_gpio_unlock(chip, flags);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(s3c_gpio_setpull);
|
|
|
|
samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
|
|
{
|
|
struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
|
|
unsigned long flags;
|
|
int offset;
|
|
u32 pup = 0;
|
|
|
|
if (chip) {
|
|
offset = pin - chip->chip.base;
|
|
|
|
samsung_gpio_lock(chip, flags);
|
|
pup = samsung_gpio_do_getpull(chip, offset);
|
|
samsung_gpio_unlock(chip, flags);
|
|
}
|
|
|
|
return (__force samsung_gpio_pull_t)pup;
|
|
}
|
|
EXPORT_SYMBOL(s3c_gpio_getpull);
|
|
|
|
#ifdef CONFIG_S5P_GPIO_DRVSTR
|
|
s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
|
|
{
|
|
struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
|
|
unsigned int off;
|
|
void __iomem *reg;
|
|
int shift;
|
|
u32 drvstr;
|
|
|
|
if (!chip)
|
|
return -EINVAL;
|
|
|
|
off = pin - chip->chip.base;
|
|
shift = off * 2;
|
|
reg = chip->base + 0x0C;
|
|
|
|
drvstr = __raw_readl(reg);
|
|
drvstr = drvstr >> shift;
|
|
drvstr &= 0x3;
|
|
|
|
return (__force s5p_gpio_drvstr_t)drvstr;
|
|
}
|
|
EXPORT_SYMBOL(s5p_gpio_get_drvstr);
|
|
|
|
int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
|
|
{
|
|
struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
|
|
unsigned int off;
|
|
void __iomem *reg;
|
|
int shift;
|
|
u32 tmp;
|
|
|
|
if (!chip)
|
|
return -EINVAL;
|
|
|
|
off = pin - chip->chip.base;
|
|
shift = off * 2;
|
|
reg = chip->base + 0x0C;
|
|
|
|
tmp = __raw_readl(reg);
|
|
tmp &= ~(0x3 << shift);
|
|
tmp |= drvstr << shift;
|
|
|
|
__raw_writel(tmp, reg);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(s5p_gpio_set_drvstr);
|
|
#endif /* CONFIG_S5P_GPIO_DRVSTR */
|
|
|
|
#ifdef CONFIG_PLAT_S3C24XX
|
|
unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
|
|
{
|
|
unsigned long flags;
|
|
unsigned long misccr;
|
|
|
|
local_irq_save(flags);
|
|
misccr = __raw_readl(S3C24XX_MISCCR);
|
|
misccr &= ~clear;
|
|
misccr ^= change;
|
|
__raw_writel(misccr, S3C24XX_MISCCR);
|
|
local_irq_restore(flags);
|
|
|
|
return misccr;
|
|
}
|
|
EXPORT_SYMBOL(s3c2410_modify_misccr);
|
|
#endif
|