+++ /dev/null
---- a/arch/mips/au1000/Kconfig
-+++ b/arch/mips/au1000/Kconfig
-@@ -134,3 +134,4 @@ config SOC_AU1X00
- select SYS_HAS_CPU_MIPS32_R1
- select SYS_SUPPORTS_32BIT_KERNEL
- select SYS_SUPPORTS_APM_EMULATION
-+ select ARCH_REQUIRE_GPIOLIB
---- a/arch/mips/au1000/common/gpio.c
-+++ b/arch/mips/au1000/common/gpio.c
-@@ -1,5 +1,5 @@
- /*
-- * Copyright (C) 2007, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
-+ * Copyright (C) 2007-2008, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
- * Architecture specific GPIO support
- *
- * This program is free software; you can redistribute it and/or modify it
-@@ -27,122 +27,222 @@
- * others have a second one : GPIO2
- */
-
-+#include <linux/kernel.h>
- #include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/platform_device.h>
-+#include <linux/gpio.h>
-
- #include <asm/mach-au1x00/au1000.h>
--#include <asm/gpio.h>
-+#include <asm/mach-au1x00/gpio.h>
-
--#define gpio1 sys
--#if !defined(CONFIG_SOC_AU1000)
-+struct au1000_gpio_chip {
-+ struct gpio_chip chip;
-+ void __iomem *regbase;
-+};
-
--static struct au1x00_gpio2 *const gpio2 = (struct au1x00_gpio2 *) GPIO2_BASE;
-+#if !defined(CONFIG_SOC_AU1000)
- #define GPIO2_OUTPUT_ENABLE_MASK 0x00010000
-
--static int au1xxx_gpio2_read(unsigned gpio)
-+/*
-+ * Return GPIO bank 2 level
-+ */
-+static int au1000_gpio2_get(struct gpio_chip *chip, unsigned offset)
- {
-- gpio -= AU1XXX_GPIO_BASE;
-- return ((gpio2->pinstate >> gpio) & 0x01);
-+ u32 mask = 1 << offset;
-+ struct au1000_gpio_chip *gpch;
-+
-+ gpch = container_of(chip, struct au1000_gpio_chip, chip);
-+ return readl(gpch->regbase + AU1000_GPIO2_ST) & mask;
- }
-
--static void au1xxx_gpio2_write(unsigned gpio, int value)
-+/*
-+ * Set output GPIO bank 2 level
-+ */
-+static void au1000_gpio2_set(struct gpio_chip *chip,
-+ unsigned offset, int value)
- {
-- gpio -= AU1XXX_GPIO_BASE;
--
-- gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | ((!!value) << gpio);
-+ u32 mask = (!!value) << offset;
-+ struct au1000_gpio_chip *gpch;
-+ unsigned long flags;
-+
-+ gpch = container_of(chip, struct au1000_gpio_chip, chip);
-+
-+ local_irq_save(flags);
-+ writel((GPIO2_OUTPUT_ENABLE_MASK << offset) | mask,
-+ gpch->regbase + AU1000_GPIO2_OUT);
-+ local_irq_restore(flags);
- }
-
--static int au1xxx_gpio2_direction_input(unsigned gpio)
-+/*
-+ * Set GPIO bank 2 direction to input
-+ */
-+static int au1000_gpio2_direction_input(struct gpio_chip *chip, unsigned offset)
- {
-- gpio -= AU1XXX_GPIO_BASE;
-- gpio2->dir &= ~(0x01 << gpio);
-+ unsigned long flags;
-+ u32 mask = 1 << offset;
-+ u32 value;
-+ struct au1000_gpio_chip *gpch;
-+ void __iomem *gpdr;
-+
-+ gpch = container_of(chip, struct au1000_gpio_chip, chip);
-+ gpdr = gpch->regbase + AU1000_GPIO2_DIR;
-+
-+ local_irq_save(flags);
-+ value = readl(gpdr);
-+ value &= ~mask;
-+ writel(value, gpdr);
-+ local_irq_restore(flags);
-+
- return 0;
- }
-
--static int au1xxx_gpio2_direction_output(unsigned gpio, int value)
-+/*
-+ * Set GPIO bank2 direction to output
-+ */
-+static int au1000_gpio2_direction_output(struct gpio_chip *chip,
-+ unsigned offset, int value)
- {
-- gpio -= AU1XXX_GPIO_BASE;
-- gpio2->dir |= 0x01 << gpio;
-- gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | ((!!value) << gpio);
-+ unsigned long flags;
-+ u32 mask = 1 << offset;
-+ u32 tmp;
-+ struct au1000_gpio_chip *gpch;
-+ void __iomem *gpdr;
-+
-+ gpch = container_of(chip, struct au1000_gpio_chip, chip);
-+ gpdr = gpch->regbase + AU1000_GPIO2_DIR;
-+
-+ local_irq_save(flags);
-+ tmp = readl(gpdr);
-+ tmp |= mask;
-+ writel(tmp, gpdr);
-+ mask = (!!value) << offset;
-+ writel((GPIO2_OUTPUT_ENABLE_MASK << offset) | mask,
-+ gpch->regbase + AU1000_GPIO2_OUT);
-+ local_irq_restore(flags);
-+
- return 0;
- }
--
- #endif /* !defined(CONFIG_SOC_AU1000) */
-
--static int au1xxx_gpio1_read(unsigned gpio)
-+/*
-+ * Return GPIO bank 2 level
-+ */
-+static int au1000_gpio1_get(struct gpio_chip *chip, unsigned offset)
- {
-- return (gpio1->pinstaterd >> gpio) & 0x01;
-+ u32 mask = 1 << offset;
-+ struct au1000_gpio_chip *gpch;
-+
-+ gpch = container_of(chip, struct au1000_gpio_chip, chip);
-+ return readl(gpch->regbase + 0x0110) & mask;
- }
-
--static void au1xxx_gpio1_write(unsigned gpio, int value)
-+/*
-+ * Set GPIO bank 1 level
-+ */
-+static void au1000_gpio1_set(struct gpio_chip *chip,
-+ unsigned offset, int value)
- {
-+ unsigned long flags;
-+ u32 mask = 1 << offset;
-+ struct au1000_gpio_chip *gpch;
-+
-+ gpch = container_of(chip, struct au1000_gpio_chip, chip);
-+
-+ local_irq_save(flags);
- if (value)
-- gpio1->outputset = (0x01 << gpio);
-+ writel(mask, gpch->regbase + 0x0108);
- else
-- /* Output a zero */
-- gpio1->outputclr = (0x01 << gpio);
-+ writel(mask, gpch->regbase + 0x010C);
-+ local_irq_restore(flags);
- }
-
--static int au1xxx_gpio1_direction_input(unsigned gpio)
-+/*
-+ * Set GPIO bank 1 direction to input
-+ */
-+static int au1000_gpio1_direction_input(struct gpio_chip *chip, unsigned offset)
- {
-- gpio1->pininputen = (0x01 << gpio);
-- return 0;
--}
-+ unsigned long flags;
-+ u32 mask = 1 << offset;
-+ u32 value;
-+ struct au1000_gpio_chip *gpch;
-+ void __iomem *gpdr;
-+
-+ gpch = container_of(chip, struct au1000_gpio_chip, chip);
-+ gpdr = gpch->regbase + 0x0110;
-+
-+ local_irq_save(flags);
-+ value = readl(gpdr);
-+ value |= mask;
-+ writel(mask, gpdr);
-+ local_irq_restore(flags);
-
--static int au1xxx_gpio1_direction_output(unsigned gpio, int value)
--{
-- gpio1->trioutclr = (0x01 & gpio);
-- au1xxx_gpio1_write(gpio, value);
- return 0;
- }
-
--int au1xxx_gpio_get_value(unsigned gpio)
-+/*
-+ * Set GPIO bank 1 direction to output
-+ */
-+static int au1000_gpio1_direction_output(struct gpio_chip *chip,
-+ unsigned offset, int value)
- {
-- if (gpio >= AU1XXX_GPIO_BASE)
--#if defined(CONFIG_SOC_AU1000)
-- return 0;
--#else
-- return au1xxx_gpio2_read(gpio);
--#endif
-+ unsigned long flags;
-+ u32 mask = 1 << offset;
-+ u32 tmp;
-+ struct au1000_gpio_chip *gpch;
-+ void __iomem *gpdr;
-+
-+ gpch = container_of(chip, struct au1000_gpio_chip, chip);
-+ gpdr = gpch->regbase + 0x0100;
-+
-+ local_irq_save(flags);
-+ tmp = readl(gpdr);
-+ writel(tmp, gpdr);
-+ if (value)
-+ writel(mask, gpch->regbase + 0x0108);
- else
-- return au1xxx_gpio1_read(gpio);
--}
--EXPORT_SYMBOL(au1xxx_gpio_get_value);
-+ writel(mask, gpch->regbase + 0x0108);
-+ local_irq_restore(flags);
-
--void au1xxx_gpio_set_value(unsigned gpio, int value)
--{
-- if (gpio >= AU1XXX_GPIO_BASE)
--#if defined(CONFIG_SOC_AU1000)
-- ;
--#else
-- au1xxx_gpio2_write(gpio, value);
--#endif
-- else
-- au1xxx_gpio1_write(gpio, value);
-+ return 0;
- }
--EXPORT_SYMBOL(au1xxx_gpio_set_value);
-
--int au1xxx_gpio_direction_input(unsigned gpio)
--{
-- if (gpio >= AU1XXX_GPIO_BASE)
--#if defined(CONFIG_SOC_AU1000)
-- return -ENODEV;
--#else
-- return au1xxx_gpio2_direction_input(gpio);
-+struct au1000_gpio_chip au1000_gpio_chip[] = {
-+ [0] = {
-+ .regbase = (void __iomem *)SYS_BASE,
-+ .chip = {
-+ .label = "au1000-gpio1",
-+ .direction_input = au1000_gpio1_direction_input,
-+ .direction_output = au1000_gpio1_direction_output,
-+ .get = au1000_gpio1_get,
-+ .set = au1000_gpio1_set,
-+ .base = 0,
-+ .ngpio = 32,
-+ },
-+ },
-+#if !defined(CONFIG_SOC_AU1000)
-+ [1] = {
-+ .regbase = (void __iomem *)GPIO2_BASE,
-+ .chip = {
-+ .label = "au1000-gpio2",
-+ .direction_input = au1000_gpio2_direction_input,
-+ .direction_output = au1000_gpio2_direction_output,
-+ .get = au1000_gpio2_get,
-+ .set = au1000_gpio2_set,
-+ .base = AU1XXX_GPIO_BASE,
-+ .ngpio = 32,
-+ },
-+ },
- #endif
-+};
-
-- return au1xxx_gpio1_direction_input(gpio);
--}
--EXPORT_SYMBOL(au1xxx_gpio_direction_input);
--
--int au1xxx_gpio_direction_output(unsigned gpio, int value)
-+int __init au1000_gpio_init(void)
- {
-- if (gpio >= AU1XXX_GPIO_BASE)
--#if defined(CONFIG_SOC_AU1000)
-- return -ENODEV;
--#else
-- return au1xxx_gpio2_direction_output(gpio, value);
-+ gpiochip_add(&au1000_gpio_chip[0].chip);
-+#if !defined(CONFIG_SOC_AU1000)
-+ gpiochip_add(&au1000_gpio_chip[1].chip);
- #endif
-
-- return au1xxx_gpio1_direction_output(gpio, value);
-+ return 0;
- }
--EXPORT_SYMBOL(au1xxx_gpio_direction_output);
-+arch_initcall(au1000_gpio_init);
---- a/include/asm-mips/mach-au1x00/gpio.h
-+++ b/include/asm-mips/mach-au1x00/gpio.h
-@@ -1,69 +1,21 @@
- #ifndef _AU1XXX_GPIO_H_
- #define _AU1XXX_GPIO_H_
-
--#include <linux/types.h>
--
- #define AU1XXX_GPIO_BASE 200
-
--struct au1x00_gpio2 {
-- u32 dir;
-- u32 reserved;
-- u32 output;
-- u32 pinstate;
-- u32 inten;
-- u32 enable;
--};
--
--extern int au1xxx_gpio_get_value(unsigned gpio);
--extern void au1xxx_gpio_set_value(unsigned gpio, int value);
--extern int au1xxx_gpio_direction_input(unsigned gpio);
--extern int au1xxx_gpio_direction_output(unsigned gpio, int value);
--
--
--/* Wrappers for the arch-neutral GPIO API */
--
--static inline int gpio_request(unsigned gpio, const char *label)
--{
-- /* Not yet implemented */
-- return 0;
--}
--
--static inline void gpio_free(unsigned gpio)
--{
-- /* Not yet implemented */
--}
--
--static inline int gpio_direction_input(unsigned gpio)
--{
-- return au1xxx_gpio_direction_input(gpio);
--}
--
--static inline int gpio_direction_output(unsigned gpio, int value)
--{
-- return au1xxx_gpio_direction_output(gpio, value);
--}
--
--static inline int gpio_get_value(unsigned gpio)
--{
-- return au1xxx_gpio_get_value(gpio);
--}
--
--static inline void gpio_set_value(unsigned gpio, int value)
--{
-- au1xxx_gpio_set_value(gpio, value);
--}
--
--static inline int gpio_to_irq(unsigned gpio)
--{
-- return gpio;
--}
--
--static inline int irq_to_gpio(unsigned irq)
--{
-- return irq;
--}
-+#define AU1000_GPIO2_DIR 0x00
-+#define AU1000_GPIO2_RSVD 0x04
-+#define AU1000_GPIO2_OUT 0x08
-+#define AU1000_GPIO2_ST 0x0C
-+#define AU1000_GPIO2_INT 0x10
-+#define AU1000_GPIO2_EN 0x14
-+
-+#define gpio_get_value __gpio_get_value
-+#define gpio_set_value __gpio_set_value
-+
-+#define gpio_to_irq(gpio) NULL
-+#define irq_to_gpio(irq) NULL
-
--/* For cansleep */
- #include <asm-generic/gpio.h>
-
- #endif /* _AU1XXX_GPIO_H_ */
projects / openwrt.git / commitdiff