/*
* OMAP7xx 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 OMAP7XX_GPIO1_BASE 0xfffbc000
#define OMAP7XX_GPIO2_BASE 0xfffbc800
#define OMAP7XX_GPIO3_BASE 0xfffbd000
#define OMAP7XX_GPIO4_BASE 0xfffbd800
#define OMAP7XX_GPIO5_BASE 0xfffbe000
#define OMAP7XX_GPIO6_BASE 0xfffbe800
#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE
/* mpu gpio */
static struct __initdata resource omap7xx_mpu_gpio_resources[] = {
{
.start = OMAP1_MPUIO_VBASE,
.end = OMAP1_MPUIO_VBASE + SZ_2K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_7XX_MPUIO,
.flags = IORESOURCE_IRQ,
},
};
static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {
.revision = USHRT_MAX,
.direction = OMAP_MPUIO_IO_CNTL / 2,
.datain = OMAP_MPUIO_INPUT_LATCH / 2,
.dataout = OMAP_MPUIO_OUTPUT / 2,
.irqstatus = OMAP_MPUIO_GPIO_INT / 2,
.irqenable = OMAP_MPUIO_GPIO_MASKIT / 2,
.irqenable_inv = true,
.irqctrl = OMAP_MPUIO_GPIO_INT_EDGE >> 1,
};
static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {
.is_mpuio = true,
.bank_width = 16,
.bank_stride = 2,
.regs = &omap7xx_mpuio_regs,
};
static struct platform_device omap7xx_mpu_gpio = {
.name = "omap_gpio",
.id = 0,
.dev = {
.platform_data = &omap7xx_mpu_gpio_config,
},
.num_resources = ARRAY_SIZE(omap7xx_mpu_gpio_resources),
.resource = omap7xx_mpu_gpio_resources,
};
/* gpio1 */
static struct __initdata resource omap7xx_gpio1_resources[] = {
{
.start = OMAP7XX_GPIO1_BASE,
.end = OMAP7XX_GPIO1_BASE + SZ_2K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_7XX_GPIO_BANK1,
.flags = IORESOURCE_IRQ,
},
};
static struct omap_gpio_reg_offs omap7xx_gpio_regs = {
.revision = USHRT_MAX,
.direction = OMAP7XX_GPIO_DIR_CONTROL,
.datain = OMAP7XX_GPIO_DATA_INPUT,
.dataout = OMAP7XX_GPIO_DATA_OUTPUT,
.irqstatus = OMAP7XX_GPIO_INT_STATUS,
.irqenable = OMAP7XX_GPIO_INT_MASK,
.irqenable_inv = true,
.irqctrl = OMAP7XX_GPIO_INT_CONTROL,
};
static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct platform_device omap7xx_gpio1 = {
.name = "omap_gpio",
.id = 1,
.dev = {
.platform_data = &omap7xx_gpio1_config,
},
.num_resources = ARRAY_SIZE(omap7xx_gpio1_resources),
.resource = omap7xx_gpio1_resources,
};
/* gpio2 */
static struct __initdata resource omap7xx_gpio2_resources[] = {
{
.start = OMAP7XX_GPIO2_BASE,
.end = OMAP7XX_GPIO2_BASE + SZ_2K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_7XX_GPIO_BANK2,
.flags = IORESOURCE_IRQ,
},
};
static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = {
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct platform_device omap7xx_gpio2 = {
.name = "omap_gpio",
.id = 2,
.dev = {
.platform_data = &omap7xx_gpio2_config,
},
.num_resources = ARRAY_SIZE(omap7xx_gpio2_resources),
.resource = omap7xx_gpio2_resources,
};
/* gpio3 */
static struct __initdata resource omap7xx_gpio3_resources[] = {
{
.start = OMAP7XX_GPIO3_BASE,
.end = OMAP7XX_GPIO3_BASE + SZ_2K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_7XX_GPIO_BANK3,
.flags = IORESOURCE_IRQ,
},
};
static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = {
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct platform_device omap7xx_gpio3 = {
.name = "omap_gpio",
.id = 3,
.dev = {
.platform_data = &omap7xx_gpio3_config,
},
.num_resources = ARRAY_SIZE(omap7xx_gpio3_resources),
.resource = omap7xx_gpio3_resources,
};
/* gpio4 */
static struct __initdata resource omap7xx_gpio4_resources[] = {
{
.start = OMAP7XX_GPIO4_BASE,
.end = OMAP7XX_GPIO4_BASE + SZ_2K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_7XX_GPIO_BANK4,
.flags = IORESOURCE_IRQ,
},
};
static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = {
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct platform_device omap7xx_gpio4 = {
.name = "omap_gpio",
.id = 4,
.dev = {
.platform_data = &omap7xx_gpio4_config,
},
.num_resources = ARRAY_SIZE(omap7xx_gpio4_resources),
.resource = omap7xx_gpio4_resources,
};
/* gpio5 */
static struct __initdata resource omap7xx_gpio5_resources[] = {
{
.start = OMAP7XX_GPIO5_BASE,
.end = OMAP7XX_GPIO5_BASE + SZ_2K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_7XX_GPIO_BANK5,
.flags = IORESOURCE_IRQ,
},
};
static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = {
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct platform_device omap7xx_gpio5 = {
.name = "omap_gpio",
.id = 5,
.dev = {
.platform_data = &omap7xx_gpio5_config,
},
.num_resources = ARRAY_SIZE(omap7xx_gpio5_resources),
.resource = omap7xx_gpio5_resources,
};
/* gpio6 */
static struct __initdata resource omap7xx_gpio6_resources[] = {
{
.start = OMAP7XX_GPIO6_BASE,
.end = OMAP7XX_GPIO6_BASE + SZ_2K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_7XX_GPIO_BANK6,
.flags = IORESOURCE_IRQ,
},
};
static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = {
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct platform_device omap7xx_gpio6 = {
.name = "omap_gpio",
.id = 6,
.dev = {
.platform_data = &omap7xx_gpio6_config,
},
.num_resources = ARRAY_SIZE(omap7xx_gpio6_resources),
.resource = omap7xx_gpio6_resources,
};
static struct __initdata platform_device * omap7xx_gpio_dev[] = {
&omap7xx_mpu_gpio,
&omap7xx_gpio1,
&omap7xx_gpio2,
&omap7xx_gpio3,
&omap7xx_gpio4,
&omap7xx_gpio5,
&omap7xx_gpio6,
};
/*
* omap7xx_gpio_init needs to be done before
* machine_init functions access gpio APIs.
* Hence omap7xx_gpio_init is a postcore_initcall.
*/
static int __init omap7xx_gpio_init(void)
{
int i;
if (!cpu_is_omap7xx())
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(omap7xx_gpio_dev); i++)
platform_device_register(omap7xx_gpio_dev[i]);
return 0;
}
postcore_initcall(omap7xx_gpio_init);