diff options
Diffstat (limited to 'arch/arm/mach-nomadik')
| -rw-r--r-- | arch/arm/mach-nomadik/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-nomadik/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-nomadik/board-nhk8815.c | 10 | ||||
| -rw-r--r-- | arch/arm/mach-nomadik/clock.c | 38 | ||||
| -rw-r--r-- | arch/arm/mach-nomadik/clock.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-nomadik/cpu-8815.c | 83 | ||||
| -rw-r--r-- | arch/arm/mach-nomadik/gpio.c | 397 | ||||
| -rw-r--r-- | arch/arm/mach-nomadik/include/mach/gpio.h | 67 |
8 files changed, 81 insertions, 518 deletions
diff --git a/arch/arm/mach-nomadik/Kconfig b/arch/arm/mach-nomadik/Kconfig index 3c5e0f522e9..71f3ea62397 100644 --- a/arch/arm/mach-nomadik/Kconfig +++ b/arch/arm/mach-nomadik/Kconfig @@ -6,6 +6,7 @@ config MACH_NOMADIK_8815NHK bool "ST 8815 Nomadik Hardware Kit (evaluation board)" select NOMADIK_8815 select HAS_MTU + select NOMADIK_GPIO endmenu diff --git a/arch/arm/mach-nomadik/Makefile b/arch/arm/mach-nomadik/Makefile index 36f67fb207d..a6bbd1a7b4e 100644 --- a/arch/arm/mach-nomadik/Makefile +++ b/arch/arm/mach-nomadik/Makefile @@ -7,7 +7,7 @@ # Object file lists. -obj-y += clock.o gpio.o +obj-y += clock.o # Cpu revision obj-$(CONFIG_NOMADIK_8815) += cpu-8815.o diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c index ab3712c86d2..841d459ad59 100644 --- a/arch/arm/mach-nomadik/board-nhk8815.c +++ b/arch/arm/mach-nomadik/board-nhk8815.c @@ -32,7 +32,6 @@ #include <mach/setup.h> #include <mach/nand.h> #include <mach/fsmc.h> -#include "clock.h" /* Initial value for SRC control register: all timers use MXTAL/8 source */ #define SRC_CR_INIT_MASK 0x00007fff @@ -202,11 +201,6 @@ static struct amba_device *amba_devs[] __initdata = { &uart1_device, }; -/* We have a fixed clock alone, by now */ -static struct clk nhk8815_clk_48 = { - .rate = 48*1000*1000, -}; - static struct resource nhk8815_eth_resources[] = { { .name = "smc91x-regs", @@ -276,10 +270,8 @@ static void __init nhk8815_platform_init(void) platform_add_devices(nhk8815_platform_devices, ARRAY_SIZE(nhk8815_platform_devices)); - for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { - nmdk_clk_create(&nhk8815_clk_48, amba_devs[i]->dev.init_name); + for (i = 0; i < ARRAY_SIZE(amba_devs); i++) amba_device_register(amba_devs[i], &iomem_resource); - } } MACHINE_START(NOMADIK, "NHK8815") diff --git a/arch/arm/mach-nomadik/clock.c b/arch/arm/mach-nomadik/clock.c index 9f92502a008..60f5bee09f2 100644 --- a/arch/arm/mach-nomadik/clock.c +++ b/arch/arm/mach-nomadik/clock.c @@ -32,14 +32,36 @@ void clk_disable(struct clk *clk) } EXPORT_SYMBOL(clk_disable); -/* Create a clock structure with the given name */ -int nmdk_clk_create(struct clk *clk, const char *dev_id) -{ - struct clk_lookup *clkdev; +/* We have a fixed clock alone, for now */ +static struct clk clk_48 = { + .rate = 48 * 1000 * 1000, +}; + +/* + * Catch-all default clock to satisfy drivers using the clk API. We don't + * model the actual hardware clocks yet. + */ +static struct clk clk_default; - clkdev = clkdev_alloc(clk, NULL, dev_id); - if (!clkdev) - return -ENOMEM; - clkdev_add(clkdev); +#define CLK(_clk, dev) \ + { \ + .clk = _clk, \ + .dev_id = dev, \ + } + +static struct clk_lookup lookups[] = { + CLK(&clk_48, "uart0"), + CLK(&clk_48, "uart1"), + CLK(&clk_default, "gpio.0"), + CLK(&clk_default, "gpio.1"), + CLK(&clk_default, "gpio.2"), + CLK(&clk_default, "gpio.3"), +}; + +static int __init clk_init(void) +{ + clkdev_add_table(lookups, ARRAY_SIZE(lookups)); return 0; } + +arch_initcall(clk_init); diff --git a/arch/arm/mach-nomadik/clock.h b/arch/arm/mach-nomadik/clock.h index 235faec7f62..5563985a2cc 100644 --- a/arch/arm/mach-nomadik/clock.h +++ b/arch/arm/mach-nomadik/clock.h @@ -11,4 +11,3 @@ struct clk { unsigned long rate; }; -extern int nmdk_clk_create(struct clk *clk, const char *dev_id); diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c index 9bf33b30a02..91c3c901b46 100644 --- a/arch/arm/mach-nomadik/cpu-8815.c +++ b/arch/arm/mach-nomadik/cpu-8815.c @@ -20,6 +20,7 @@ #include <linux/init.h> #include <linux/device.h> #include <linux/amba/bus.h> +#include <linux/platform_device.h> #include <linux/gpio.h> #include <mach/hardware.h> @@ -30,60 +31,66 @@ #include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> +#define __MEM_4K_RESOURCE(x) \ + .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM} + /* The 8815 has 4 GPIO blocks, let's register them immediately */ + +#define GPIO_RESOURCE(block) \ + { \ + .start = NOMADIK_GPIO##block##_BASE, \ + .end = NOMADIK_GPIO##block##_BASE + SZ_4K - 1, \ + .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 = &cpu8815_gpio_resources[block * 2], \ + .dev = { \ + .platform_data = &cpu8815_gpio[block], \ + }, \ + } + static struct nmk_gpio_platform_data cpu8815_gpio[] = { { .name = "GPIO-0-31", .first_gpio = 0, .first_irq = NOMADIK_GPIO_TO_IRQ(0), - .parent_irq = IRQ_GPIO0, }, { .name = "GPIO-32-63", .first_gpio = 32, .first_irq = NOMADIK_GPIO_TO_IRQ(32), - .parent_irq = IRQ_GPIO1, }, { .name = "GPIO-64-95", .first_gpio = 64, .first_irq = NOMADIK_GPIO_TO_IRQ(64), - .parent_irq = IRQ_GPIO2, }, { .name = "GPIO-96-127", /* 124..127 not routed to pin */ .first_gpio = 96, .first_irq = NOMADIK_GPIO_TO_IRQ(96), - .parent_irq = IRQ_GPIO3, } }; -#define __MEM_4K_RESOURCE(x) \ - .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM} +static struct resource cpu8815_gpio_resources[] = { + GPIO_RESOURCE(0), + GPIO_RESOURCE(1), + GPIO_RESOURCE(2), + GPIO_RESOURCE(3), +}; -static struct amba_device cpu8815_amba_gpio[] = { - { - .dev = { - .init_name = "gpio0", - .platform_data = cpu8815_gpio + 0, - }, - __MEM_4K_RESOURCE(NOMADIK_GPIO0_BASE), - }, { - .dev = { - .init_name = "gpio1", - .platform_data = cpu8815_gpio + 1, - }, - __MEM_4K_RESOURCE(NOMADIK_GPIO1_BASE), - }, { - .dev = { - .init_name = "gpio2", - .platform_data = cpu8815_gpio + 2, - }, - __MEM_4K_RESOURCE(NOMADIK_GPIO2_BASE), - }, { - .dev = { - .init_name = "gpio3", - .platform_data = cpu8815_gpio + 3, - }, - __MEM_4K_RESOURCE(NOMADIK_GPIO3_BASE), - }, +static struct platform_device cpu8815_platform_gpio[] = { + GPIO_DEVICE(0), + GPIO_DEVICE(1), + GPIO_DEVICE(2), + GPIO_DEVICE(3), }; static struct amba_device cpu8815_amba_rng = { @@ -93,11 +100,14 @@ static struct amba_device cpu8815_amba_rng = { __MEM_4K_RESOURCE(NOMADIK_RNG_BASE), }; +static struct platform_device *platform_devs[] __initdata = { + cpu8815_platform_gpio + 0, + cpu8815_platform_gpio + 1, + cpu8815_platform_gpio + 2, + cpu8815_platform_gpio + 3, +}; + static struct amba_device *amba_devs[] __initdata = { - cpu8815_amba_gpio + 0, - cpu8815_amba_gpio + 1, - cpu8815_amba_gpio + 2, - cpu8815_amba_gpio + 3, &cpu8815_amba_rng }; @@ -105,6 +115,7 @@ static int __init cpu8815_init(void) { int i; + platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs)); for (i = 0; i < ARRAY_SIZE(amba_devs); i++) amba_device_register(amba_devs[i], &iomem_resource); return 0; diff --git a/arch/arm/mach-nomadik/gpio.c b/arch/arm/mach-nomadik/gpio.c deleted file mode 100644 index 66b1c91ccc7..00000000000 --- a/arch/arm/mach-nomadik/gpio.c +++ /dev/null @@ -1,397 +0,0 @@ -/* - * Generic GPIO driver for logic cells found in the Nomadik SoC - * - * Copyright (C) 2008,2009 STMicroelectronics - * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it> - * Rewritten based on work by Prafulla WADASKAR <prafulla.wadaskar@st.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/device.h> -#include <linux/amba/bus.h> -#include <linux/io.h> -#include <linux/gpio.h> -#include <linux/spinlock.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/slab.h> - -#include <mach/hardware.h> -#include <mach/gpio.h> - -/* - * The GPIO module in the Nomadik family of Systems-on-Chip is an - * AMBA device, managing 32 pins and alternate functions. The logic block - * is currently only used in the Nomadik. - * - * Symbols in this file are called "nmk_gpio" for "nomadik gpio" - */ - -#define NMK_GPIO_PER_CHIP 32 -struct nmk_gpio_chip { - struct gpio_chip chip; - void __iomem *addr; - unsigned int parent_irq; - spinlock_t *lock; - /* Keep track of configured edges */ - u32 edge_rising; - u32 edge_falling; -}; - -/* Mode functions */ -int nmk_gpio_set_mode(int gpio, int gpio_mode) -{ - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - u32 afunc, bfunc, bit; - - nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(gpio)); - if (!nmk_chip) - return -EINVAL; - - bit = 1 << (gpio - nmk_chip->chip.base); - - spin_lock_irqsave(&nmk_chip->lock, flags); - afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & ~bit; - bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & ~bit; - if (gpio_mode & NMK_GPIO_ALT_A) - afunc |= bit; - if (gpio_mode & NMK_GPIO_ALT_B) - bfunc |= bit; - writel(afunc, nmk_chip->addr + NMK_GPIO_AFSLA); - writel(bfunc, nmk_chip->addr + NMK_GPIO_AFSLB); - spin_unlock_irqrestore(&nmk_chip->lock, flags); - - return 0; -} -EXPORT_SYMBOL(nmk_gpio_set_mode); - -int nmk_gpio_get_mode(int gpio) -{ - struct nmk_gpio_chip *nmk_chip; - u32 afunc, bfunc, bit; - - nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(gpio)); - if (!nmk_chip) - return -EINVAL; - - bit = 1 << (gpio - nmk_chip->chip.base); - - afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & bit; - bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & bit; - - return (afunc ? NMK_GPIO_ALT_A : 0) | (bfunc ? NMK_GPIO_ALT_B : 0); -} -EXPORT_SYMBOL(nmk_gpio_get_mode); - - -/* IRQ functions */ -static inline int nmk_gpio_get_bitmask(int gpio) -{ - return 1 << (gpio % 32); -} - -static void nmk_gpio_irq_ack(unsigned int irq) -{ - int gpio; - struct nmk_gpio_chip *nmk_chip; - - gpio = NOMADIK_IRQ_TO_GPIO(irq); - nmk_chip = get_irq_chip_data(irq); - if (!nmk_chip) - return; - writel(nmk_gpio_get_bitmask(gpio), nmk_chip->addr + NMK_GPIO_IC); -} - -static void nmk_gpio_irq_mask(unsigned int irq) -{ - int gpio; - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - u32 bitmask, reg; - - gpio = NOMADIK_IRQ_TO_GPIO(irq); - nmk_chip = get_irq_chip_data(irq); - bitmask = nmk_gpio_get_bitmask(gpio); - if (!nmk_chip) - return; - - /* we must individually clear the two edges */ - spin_lock_irqsave(&nmk_chip->lock, flags); - if (nmk_chip->edge_rising & bitmask) { - reg = readl(nmk_chip->addr + NMK_GPIO_RWIMSC); - reg &= ~bitmask; - writel(reg, nmk_chip->addr + NMK_GPIO_RWIMSC); - } - if (nmk_chip->edge_falling & bitmask) { - reg = readl(nmk_chip->addr + NMK_GPIO_FWIMSC); - reg &= ~bitmask; - writel(reg, nmk_chip->addr + NMK_GPIO_FWIMSC); - } - spin_unlock_irqrestore(&nmk_chip->lock, flags); -}; - -static void nmk_gpio_irq_unmask(unsigned int irq) -{ - int gpio; - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - u32 bitmask, reg; - - gpio = NOMADIK_IRQ_TO_GPIO(irq); - nmk_chip = get_irq_chip_data(irq); - bitmask = nmk_gpio_get_bitmask(gpio); - if (!nmk_chip) - return; - - /* we must individually set the two edges */ - spin_lock_irqsave(&nmk_chip->lock, flags); - if (nmk_chip->edge_rising & bitmask) { - reg = readl(nmk_chip->addr + NMK_GPIO_RWIMSC); - reg |= bitmask; - writel(reg, nmk_chip->addr + NMK_GPIO_RWIMSC); - } - if (nmk_chip->edge_falling & bitmask) { - reg = readl(nmk_chip->addr + NMK_GPIO_FWIMSC); - reg |= bitmask; - writel(reg, nmk_chip->addr + NMK_GPIO_FWIMSC); - } - spin_unlock_irqrestore(&nmk_chip->lock, flags); -} - -static int nmk_gpio_irq_set_type(unsigned int irq, unsigned int type) -{ - int gpio; - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - u32 bitmask; - - gpio = NOMADIK_IRQ_TO_GPIO(irq); - nmk_chip = get_irq_chip_data(irq); - bitmask = nmk_gpio_get_bitmask(gpio); - if (!nmk_chip) - return -EINVAL; - - if (type & IRQ_TYPE_LEVEL_HIGH) - return -EINVAL; - if (type & IRQ_TYPE_LEVEL_LOW) - return -EINVAL; - - spin_lock_irqsave(&nmk_chip->lock, flags); - - nmk_chip->edge_rising &= ~bitmask; - if (type & IRQ_TYPE_EDGE_RISING) - nmk_chip->edge_rising |= bitmask; - writel(nmk_chip->edge_rising, nmk_chip->addr + NMK_GPIO_RIMSC); - - nmk_chip->edge_falling &= ~bitmask; - if (type & IRQ_TYPE_EDGE_FALLING) - nmk_chip->edge_falling |= bitmask; - writel(nmk_chip->edge_falling, nmk_chip->addr + NMK_GPIO_FIMSC); - - spin_unlock_irqrestore(&nmk_chip->lock, flags); - - nmk_gpio_irq_unmask(irq); - - return 0; -} - -static struct irq_chip nmk_gpio_irq_chip = { - .name = "Nomadik-GPIO", - .ack = nmk_gpio_irq_ack, - .mask = nmk_gpio_irq_mask, - .unmask = nmk_gpio_irq_unmask, - .set_type = nmk_gpio_irq_set_type, -}; - -static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - struct nmk_gpio_chip *nmk_chip; - struct irq_chip *host_chip; - unsigned int gpio_irq; - u32 pending; - unsigned int first_irq; - - nmk_chip = get_irq_data(irq); - first_irq = NOMADIK_GPIO_TO_IRQ(nmk_chip->chip.base); - while ( (pending = readl(nmk_chip->addr + NMK_GPIO_IS)) ) { - gpio_irq = first_irq + __ffs(pending); - generic_handle_irq(gpio_irq); - } - if (0) {/* don't ack parent irq, as ack == disable */ - host_chip = get_irq_chip(irq); - host_chip->ack(irq); - } -} - -static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip) -{ - unsigned int first_irq; - int i; - - first_irq = NOMADIK_GPIO_TO_IRQ(nmk_chip->chip.base); - for (i = first_irq; i < first_irq + NMK_GPIO_PER_CHIP; i++) { - set_irq_chip(i, &nmk_gpio_irq_chip); - set_irq_handler(i, handle_edge_irq); - set_irq_flags(i, IRQF_VALID); - set_irq_chip_data(i, nmk_chip); - } - set_irq_chained_handler(nmk_chip->parent_irq, nmk_gpio_irq_handler); - set_irq_data(nmk_chip->parent_irq, nmk_chip); - return 0; -} - -/* I/O Functions */ -static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - - writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC); - return 0; -} - -static int nmk_gpio_make_output(struct gpio_chip *chip, unsigned offset, - int val) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - - writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRS); - return 0; -} - -static int nmk_gpio_get_input(struct gpio_chip *chip, unsigned offset) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - u32 bit = 1 << offset; - - return (readl(nmk_chip->addr + NMK_GPIO_DAT) & bit) != 0; -} - -static void nmk_gpio_set_output(struct gpio_chip *chip, unsigned offset, - int val) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - u32 bit = 1 << offset; - - if (val) - writel(bit, nmk_chip->addr + NMK_GPIO_DATS); - else - writel(bit, nmk_chip->addr + NMK_GPIO_DATC); -} - -/* This structure is replicated for each GPIO block allocated at probe time */ -static struct gpio_chip nmk_gpio_template = { - .direction_input = nmk_gpio_make_input, - .get = nmk_gpio_get_input, - .direction_output = nmk_gpio_make_output, - .set = nmk_gpio_set_output, - .ngpio = NMK_GPIO_PER_CHIP, - .can_sleep = 0, -}; - -static int __init nmk_gpio_probe(struct amba_device *dev, struct amba_id *id) -{ - struct nmk_gpio_platform_data *pdata; - struct nmk_gpio_chip *nmk_chip; - struct gpio_chip *chip; - int ret; - - pdata = dev->dev.platform_data; - ret = amba_request_regions(dev, pdata->name); - if (ret) - return ret; - - nmk_chip = kzalloc(sizeof(*nmk_chip), GFP_KERNEL); - if (!nmk_chip) { - ret = -ENOMEM; - goto out_amba; - } - /* - * The virt address in nmk_chip->addr is in the nomadik register space, - * so we can simply convert the resource address, without remapping - */ - nmk_chip->addr = io_p2v(dev->res.start); - nmk_chip->chip = nmk_gpio_template; - nmk_chip->parent_irq = pdata->parent_irq; - - chip = &nmk_chip->chip; - chip->base = pdata->first_gpio; - chip->label = pdata->name; - chip->dev = &dev->dev; - chip->owner = THIS_MODULE; - - ret = gpiochip_add(&nmk_chip->chip); - if (ret) - goto out_free; - - amba_set_drvdata(dev, nmk_chip); - - nmk_gpio_init_irq(nmk_chip); - - dev_info(&dev->dev, "Bits %i-%i at address %p\n", - nmk_chip->chip.base, nmk_chip->chip.base+31, nmk_chip->addr); - return 0; - - out_free: - kfree(nmk_chip); - out_amba: - amba_release_regions(dev); - dev_err(&dev->dev, "Failure %i for GPIO %i-%i\n", ret, - pdata->first_gpio, pdata->first_gpio+31); - return ret; -} - -static int nmk_gpio_remove(struct amba_device *dev) -{ - struct nmk_gpio_chip *nmk_chip; - - nmk_chip = amba_get_drvdata(dev); - gpiochip_remove(&nmk_chip->chip); - kfree(nmk_chip); - amba_release_regions(dev); - return 0; -} - - -/* We have 0x1f080060 and 0x1f180060, accept both using the mask */ -static struct amba_id nmk_gpio_ids[] = { - { - .id = 0x1f080060, - .mask = 0xffefffff, - }, - {0, 0}, -}; - -static struct amba_driver nmk_gpio_driver = { - .drv = { - .owner = THIS_MODULE, - .name = "gpio", - }, - .probe = nmk_gpio_probe, - .remove = nmk_gpio_remove, - .suspend = NULL, /* to be done */ - .resume = NULL, - .id_table = nmk_gpio_ids, -}; - -static int __init nmk_gpio_init(void) -{ - return amba_driver_register(&nmk_gpio_driver); -} - -arch_initcall(nmk_gpio_init); - -MODULE_AUTHOR("Prafulla WADASKAR and Alessandro Rubini"); -MODULE_DESCRIPTION("Nomadik GPIO Driver"); -MODULE_LICENSE("GPL"); - - diff --git a/arch/arm/mach-nomadik/include/mach/gpio.h b/arch/arm/mach-nomadik/include/mach/gpio.h index 61577c9f9a7..7a81a042034 100644 --- a/arch/arm/mach-nomadik/include/mach/gpio.h +++ b/arch/arm/mach-nomadik/include/mach/gpio.h @@ -1,71 +1,6 @@ -/* - * Structures and registers for GPIO access in the Nomadik SoC - * - * Copyright (C) 2008 STMicroelectronics - * Author: Prafulla WADASKAR <prafulla.wadaskar@st.com> - * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ #ifndef __ASM_ARCH_GPIO_H #define __ASM_ARCH_GPIO_H -#include <asm-generic/gpio.h> - -/* - * These currently cause a function call to happen, they may be optimized - * if needed by adding cpu-specific defines to identify blocks - * (see mach-pxa/include/mach/gpio.h as an example using GPLR etc) - */ -#define gpio_get_value __gpio_get_value -#define gpio_set_value __gpio_set_value -#define gpio_cansleep __gpio_cansleep -#define gpio_to_irq __gpio_to_irq - -/* - * "nmk_gpio" and "NMK_GPIO" stand for "Nomadik GPIO", leaving - * the "gpio" namespace for generic and cross-machine functions - */ - -/* Register in the logic block */ -#define NMK_GPIO_DAT 0x00 -#define NMK_GPIO_DATS 0x04 -#define NMK_GPIO_DATC 0x08 -#define NMK_GPIO_PDIS 0x0c -#define NMK_GPIO_DIR 0x10 -#define NMK_GPIO_DIRS 0x14 -#define NMK_GPIO_DIRC 0x18 -#define NMK_GPIO_SLPC 0x1c -#define NMK_GPIO_AFSLA 0x20 -#define NMK_GPIO_AFSLB 0x24 - -#define NMK_GPIO_RIMSC 0x40 -#define NMK_GPIO_FIMSC 0x44 -#define NMK_GPIO_IS 0x48 -#define NMK_GPIO_IC 0x4c -#define NMK_GPIO_RWIMSC 0x50 -#define NMK_GPIO_FWIMSC 0x54 -#define NMK_GPIO_WKS 0x58 - -/* Alternate functions: function C is set in hw by setting both A and B */ -#define NMK_GPIO_ALT_GPIO 0 -#define NMK_GPIO_ALT_A 1 -#define NMK_GPIO_ALT_B 2 -#define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B) - -extern int nmk_gpio_set_mode(int gpio, int gpio_mode); -extern int nmk_gpio_get_mode(int gpio); - -/* - * Platform data to register a block: only the initial gpio/irq number. - */ -struct nmk_gpio_platform_data { - char *name; - int first_gpio; - int first_irq; - int parent_irq; -}; +#include <plat/gpio.h> #endif /* __ASM_ARCH_GPIO_H */ |