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yaml
---
r: 226479
b: refs/heads/master
c: c95d10b
h: refs/heads/master
i:
  226477: 0bddac7
  226475: 157d07d
  226471: 6775aaa
  226463: 5a12dd0
v: v3
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Varadarajan, Charulatha authored and Tony Lindgren committed Dec 8, 2010
1 parent 2c38a78 commit 6a63feb
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Showing 4 changed files with 119 additions and 9 deletions.
2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 9a748053f5f58a77cd71864f1d7b804175b0e47d
refs/heads/master: c95d10bc49d50a9bc0f63a6eae79bb2707dabfdc
98 changes: 98 additions & 0 deletions trunk/arch/arm/mach-omap1/gpio15xx.c
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@@ -0,0 +1,98 @@
/*
* 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,
};

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);
10 changes: 2 additions & 8 deletions trunk/arch/arm/plat-omap/gpio.c
Original file line number Diff line number Diff line change
Expand Up @@ -205,13 +205,6 @@ struct gpio_bank {
u32 dbck_enable_mask;
};

#define METHOD_MPUIO 0
#define METHOD_GPIO_1510 1
#define METHOD_GPIO_1610 2
#define METHOD_GPIO_7XX 3
#define METHOD_GPIO_24XX 5
#define METHOD_GPIO_44XX 6

#ifdef CONFIG_ARCH_OMAP16XX
static struct gpio_bank gpio_bank_1610[5] = {
{ OMAP1_MPUIO_VBASE, NULL, INT_MPUIO, IH_MPUIO_BASE,
Expand Down Expand Up @@ -335,7 +328,8 @@ static struct gpio_bank gpio_bank_44xx[6] = {
#endif

static struct gpio_bank *gpio_bank;
static int gpio_bank_count;
/* TODO: Analyze removing gpio_bank_count usage from driver code */
int gpio_bank_count;

static inline struct gpio_bank *get_gpio_bank(int gpio)
{
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18 changes: 18 additions & 0 deletions trunk/arch/arm/plat-omap/include/plat/gpio.h
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Expand Up @@ -27,6 +27,7 @@
#define __ASM_ARCH_OMAP_GPIO_H

#include <linux/io.h>
#include <linux/platform_device.h>
#include <mach/irqs.h>

#define OMAP1_MPUIO_BASE 0xfffb5000
Expand Down Expand Up @@ -71,6 +72,23 @@
IH_MPUIO_BASE + ((nr) & 0x0f) : \
IH_GPIO_BASE + (nr))

#define METHOD_MPUIO 0
#define METHOD_GPIO_1510 1
#define METHOD_GPIO_1610 2
#define METHOD_GPIO_7XX 3
#define METHOD_GPIO_24XX 5
#define METHOD_GPIO_44XX 6

struct omap_gpio_platform_data {
u16 virtual_irq_start;
int bank_type;
int bank_width; /* GPIO bank width */
bool dbck_flag; /* dbck required or not - True for OMAP3&4 */
};

/* TODO: Analyze removing gpio_bank_count usage from driver code */
extern int gpio_bank_count;

extern int omap_gpio_init(void); /* Call from board init only */
extern void omap2_gpio_prepare_for_idle(int power_state);
extern void omap2_gpio_resume_after_idle(void);
Expand Down

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