Commit 94bdc0e2 authored by Rabin Vincent's avatar Rabin Vincent Committed by Russell King
Browse files

ARM: 5973/1: ux500: add gpio support



Add support for the GPIOs on the U8500, using the plat-nomadik GPIO
driver.
Acked-by: default avatarLinus Walleij <linus.walleij@stericsson.com>
Acked-by: default avatarSrinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: default avatarRabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 1df20afc
...@@ -756,6 +756,7 @@ config ARCH_U8500 ...@@ -756,6 +756,7 @@ config ARCH_U8500
select GENERIC_TIME select GENERIC_TIME
select GENERIC_CLOCKEVENTS select GENERIC_CLOCKEVENTS
select COMMON_CLKDEV select COMMON_CLKDEV
select ARCH_REQUIRE_GPIOLIB
help help
Support for ST-Ericsson's Ux500 architecture Support for ST-Ericsson's Ux500 architecture
......
...@@ -8,6 +8,7 @@ config MACH_U8500_MOP ...@@ -8,6 +8,7 @@ config MACH_U8500_MOP
default y default y
select ARM_GIC select ARM_GIC
select HAS_MTU select HAS_MTU
select NOMADIK_GPIO
help help
Include support for mop500 development platform Include support for mop500 development platform
based on U8500 architecture. The platform is based based on U8500 architecture. The platform is based
......
...@@ -13,6 +13,7 @@ ...@@ -13,6 +13,7 @@
#include <linux/device.h> #include <linux/device.h>
#include <linux/amba/bus.h> #include <linux/amba/bus.h>
#include <linux/irq.h> #include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/io.h> #include <linux/io.h>
...@@ -23,9 +24,82 @@ ...@@ -23,9 +24,82 @@
#include <mach/hardware.h> #include <mach/hardware.h>
#include <mach/setup.h> #include <mach/setup.h>
/* add any platform devices here - TODO */ #define GPIO_RESOURCE(block) \
{ \
.start = U8500_GPIOBANK##block##_BASE, \
.end = U8500_GPIOBANK##block##_BASE + 127, \
.flags = IORESOURCE_MEM, \
}, \
{ \
.start = IRQ_GPIO##block, \
.end = IRQ_GPIO##block, \
.flags = IORESOURCE_IRQ, \
}
#define GPIO_DEVICE(block) \
{ \
.name = "gpio", \
.id = block, \
.num_resources = 2, \
.resource = &u8500_gpio_resources[block * 2], \
.dev = { \
.platform_data = &u8500_gpio_data[block], \
}, \
}
#define GPIO_DATA(_name, first) \
{ \
.name = _name, \
.first_gpio = first, \
.first_irq = NOMADIK_GPIO_TO_IRQ(first), \
}
static struct nmk_gpio_platform_data u8500_gpio_data[] = {
GPIO_DATA("GPIO-0-31", 0),
GPIO_DATA("GPIO-32-63", 32), /* 37..63 not routed to pin */
GPIO_DATA("GPIO-64-95", 64),
GPIO_DATA("GPIO-96-127", 96), /* 97..127 not routed to pin */
GPIO_DATA("GPIO-128-159", 128),
GPIO_DATA("GPIO-160-191", 160), /* 172..191 not routed to pin */
GPIO_DATA("GPIO-192-223", 192),
GPIO_DATA("GPIO-224-255", 224), /* 231..255 not routed to pin */
GPIO_DATA("GPIO-256-288", 256), /* 258..288 not routed to pin */
};
static struct resource u8500_gpio_resources[] = {
GPIO_RESOURCE(0),
GPIO_RESOURCE(1),
GPIO_RESOURCE(2),
GPIO_RESOURCE(3),
GPIO_RESOURCE(4),
GPIO_RESOURCE(5),
GPIO_RESOURCE(6),
GPIO_RESOURCE(7),
GPIO_RESOURCE(8),
};
static struct platform_device u8500_gpio_devs[] = {
GPIO_DEVICE(0),
GPIO_DEVICE(1),
GPIO_DEVICE(2),
GPIO_DEVICE(3),
GPIO_DEVICE(4),
GPIO_DEVICE(5),
GPIO_DEVICE(6),
GPIO_DEVICE(7),
GPIO_DEVICE(8),
};
static struct platform_device *platform_devs[] __initdata = { static struct platform_device *platform_devs[] __initdata = {
/* yet to be added, add i2c0, gpio.. */ &u8500_gpio_devs[0],
&u8500_gpio_devs[1],
&u8500_gpio_devs[2],
&u8500_gpio_devs[3],
&u8500_gpio_devs[4],
&u8500_gpio_devs[5],
&u8500_gpio_devs[6],
&u8500_gpio_devs[7],
&u8500_gpio_devs[8],
}; };
#define __IO_DEV_DESC(x, sz) { \ #define __IO_DEV_DESC(x, sz) { \
...@@ -49,6 +123,10 @@ static struct map_desc u8500_io_desc[] __initdata = { ...@@ -49,6 +123,10 @@ static struct map_desc u8500_io_desc[] __initdata = {
__IO_DEV_DESC(U8500_CLKRST3_BASE, SZ_4K), __IO_DEV_DESC(U8500_CLKRST3_BASE, SZ_4K),
__IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K), __IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K),
__IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K), __IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GPIO5_BASE, SZ_4K),
}; };
static struct map_desc u8500ed_io_desc[] __initdata = { static struct map_desc u8500ed_io_desc[] __initdata = {
......
#ifndef __ASM_ARCH_GPIO_H
#define __ASM_ARCH_GPIO_H
/*
* 288 (#267 is the highest one actually hooked up) onchip GPIOs, plus enough
* room for a couple of GPIO expanders.
*/
#define ARCH_NR_GPIOS 350
#include <plat/gpio.h>
#endif /* __ASM_ARCH_GPIO_H */
...@@ -23,6 +23,8 @@ ...@@ -23,6 +23,8 @@
/* typesafe io address */ /* typesafe io address */
#define __io_address(n) __io(IO_ADDRESS(n)) #define __io_address(n) __io(IO_ADDRESS(n))
/* used by some plat-nomadik code */
#define io_p2v(n) __io_address(n)
/* /*
* Base address definitions for U8500 Onchip IPs. All the * Base address definitions for U8500 Onchip IPs. All the
...@@ -128,6 +130,16 @@ ...@@ -128,6 +130,16 @@
#define U8500_GPIO1_BASE (U8500_PER1_BASE + 0xe000) #define U8500_GPIO1_BASE (U8500_PER1_BASE + 0xe000)
#define U8500_CLKRST1_BASE (U8500_PER1_BASE + 0xf000) #define U8500_CLKRST1_BASE (U8500_PER1_BASE + 0xf000)
#define U8500_GPIOBANK0_BASE U8500_GPIO1_BASE
#define U8500_GPIOBANK1_BASE (U8500_GPIO1_BASE + 0x80)
#define U8500_GPIOBANK2_BASE U8500_GPIO3_BASE
#define U8500_GPIOBANK3_BASE (U8500_GPIO3_BASE + 0x80)
#define U8500_GPIOBANK4_BASE (U8500_GPIO3_BASE + 0x100)
#define U8500_GPIOBANK5_BASE (U8500_GPIO3_BASE + 0x180)
#define U8500_GPIOBANK6_BASE U8500_GPIO2_BASE
#define U8500_GPIOBANK7_BASE (U8500_GPIO2_BASE + 0x80)
#define U8500_GPIOBANK8_BASE U8500_GPIO5_BASE
/* ST-Ericsson modified pl022 id */ /* ST-Ericsson modified pl022 id */
#define SSP_PER_ID 0x01080022 #define SSP_PER_ID 0x01080022
......
...@@ -66,6 +66,12 @@ ...@@ -66,6 +66,12 @@
/* There are 128 shared peripheral interrupts assigned to /* There are 128 shared peripheral interrupts assigned to
* INTID[160:32]. The first 32 interrupts are reserved. * INTID[160:32]. The first 32 interrupts are reserved.
*/ */
#define NR_IRQS 161 #define U8500_SOC_NR_IRQS 161
/* After chip-specific IRQ numbers we have the GPIO ones */
#define NOMADIK_NR_GPIO 288
#define NOMADIK_GPIO_TO_IRQ(gpio) ((gpio) + U8500_SOC_NR_IRQS)
#define NOMADIK_IRQ_TO_GPIO(irq) ((irq) - U8500_SOC_NR_IRQS)
#define NR_IRQS NOMADIK_GPIO_TO_IRQ(NOMADIK_NR_GPIO)
#endif /*ASM_ARCH_IRQS_H*/ #endif /*ASM_ARCH_IRQS_H*/
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