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