linux/arch/arm/mach-omap1/gpio15xx.c
Tony Lindgren 5de62b86d2 omap1: Fix gpio mpuio bank to work for multi-omap for 7xx/15xx/16xx
We need to divide the 15xx/16xx offset by 2 for 7xx. Use bank->stride
for that. This allows us to get rid of the duplicate defines for the
MPUIO registers.

Note that this will cause omap-keypad.c driver to not work on 7xx.
However, the right fix there is to move over to matrix_keypad instead
as suggested by Cory Maccarrone <darkstar6262@gmail.com> and
Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>.

Cc: Cory Maccarrone <darkstar6262@gmail.com>
Acked-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-07 16:26:58 -08:00

100 lines
2.5 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>
#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 __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = {
.virtual_irq_start = IH_MPUIO_BASE,
.bank_type = METHOD_MPUIO,
.bank_width = 16,
.bank_stride = 1,
};
static struct __initdata 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 __initdata omap_gpio_platform_data omap15xx_gpio_config = {
.virtual_irq_start = IH_GPIO_BASE,
.bank_type = METHOD_GPIO_1510,
.bank_width = 16,
};
static struct __initdata 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);
gpio_bank_count = 2;
return 0;
}
postcore_initcall(omap15xx_gpio_init);