124 строки
3.2 KiB
C
124 строки
3.2 KiB
C
/*
|
|
* 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 __initdata 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 __initdata 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 __initdata 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 __initdata 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);
|