123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/*
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* OMAP15xx specific gpio init
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*
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* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
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*
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* Author:
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* Charulatha V <charu@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/gpio.h>
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#include <linux/platform_data/gpio-omap.h>
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#include <mach/irqs.h>
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#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE
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#define OMAP1510_GPIO_BASE 0xFFFCE000
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/* gpio1 */
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static struct resource omap15xx_mpu_gpio_resources[] = {
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{
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.start = OMAP1_MPUIO_VBASE,
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.end = OMAP1_MPUIO_VBASE + SZ_2K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_MPUIO,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
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.revision = USHRT_MAX,
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.direction = OMAP_MPUIO_IO_CNTL,
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.datain = OMAP_MPUIO_INPUT_LATCH,
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.dataout = OMAP_MPUIO_OUTPUT,
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.irqstatus = OMAP_MPUIO_GPIO_INT,
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.irqenable = OMAP_MPUIO_GPIO_MASKIT,
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.irqenable_inv = true,
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.irqctrl = OMAP_MPUIO_GPIO_INT_EDGE,
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};
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static struct omap_gpio_platform_data omap15xx_mpu_gpio_config = {
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.is_mpuio = true,
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.bank_width = 16,
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.bank_stride = 1,
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.regs = &omap15xx_mpuio_regs,
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};
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static struct platform_device omap15xx_mpu_gpio = {
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.name = "omap_gpio",
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.id = 0,
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.dev = {
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.platform_data = &omap15xx_mpu_gpio_config,
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},
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.num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources),
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.resource = omap15xx_mpu_gpio_resources,
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};
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/* gpio2 */
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static struct resource omap15xx_gpio_resources[] = {
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{
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.start = OMAP1510_GPIO_BASE,
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.end = OMAP1510_GPIO_BASE + SZ_2K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_GPIO_BANK1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
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.revision = USHRT_MAX,
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.direction = OMAP1510_GPIO_DIR_CONTROL,
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.datain = OMAP1510_GPIO_DATA_INPUT,
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.dataout = OMAP1510_GPIO_DATA_OUTPUT,
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.irqstatus = OMAP1510_GPIO_INT_STATUS,
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.irqenable = OMAP1510_GPIO_INT_MASK,
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.irqenable_inv = true,
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.irqctrl = OMAP1510_GPIO_INT_CONTROL,
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.pinctrl = OMAP1510_GPIO_PIN_CONTROL,
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};
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static struct omap_gpio_platform_data omap15xx_gpio_config = {
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.bank_width = 16,
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.regs = &omap15xx_gpio_regs,
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};
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static struct platform_device omap15xx_gpio = {
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.name = "omap_gpio",
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.id = 1,
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.dev = {
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.platform_data = &omap15xx_gpio_config,
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},
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.num_resources = ARRAY_SIZE(omap15xx_gpio_resources),
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.resource = omap15xx_gpio_resources,
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};
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/*
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* omap15xx_gpio_init needs to be done before
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* machine_init functions access gpio APIs.
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* Hence omap15xx_gpio_init is a postcore_initcall.
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*/
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static int __init omap15xx_gpio_init(void)
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{
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if (!cpu_is_omap15xx())
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return -EINVAL;
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platform_device_register(&omap15xx_mpu_gpio);
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platform_device_register(&omap15xx_gpio);
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return 0;
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}
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postcore_initcall(omap15xx_gpio_init);
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