diff options
Diffstat (limited to 'arch/mips/include/asm/mach-au1x00/gpio-au1000.h')
| -rw-r--r-- | arch/mips/include/asm/mach-au1x00/gpio-au1000.h | 122 |
1 files changed, 100 insertions, 22 deletions
diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h index 62d2f136d94..1f41a522906 100644 --- a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h +++ b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h @@ -24,6 +24,23 @@ #define MAKE_IRQ(intc, off) (AU1000_INTC##intc##_INT_BASE + (off)) +/* GPIO1 registers within SYS_ area */ +#define SYS_TRIOUTRD 0x100 +#define SYS_TRIOUTCLR 0x100 +#define SYS_OUTPUTRD 0x108 +#define SYS_OUTPUTSET 0x108 +#define SYS_OUTPUTCLR 0x10C +#define SYS_PINSTATERD 0x110 +#define SYS_PININPUTEN 0x110 + +/* register offsets within GPIO2 block */ +#define GPIO2_DIR 0x00 +#define GPIO2_OUTPUT 0x08 +#define GPIO2_PINSTATE 0x0C +#define GPIO2_INTENABLE 0x10 +#define GPIO2_ENABLE 0x14 + +struct gpio; static inline int au1000_gpio1_to_irq(int gpio) { @@ -200,23 +217,26 @@ static inline int au1200_irq_to_gpio(int irq) */ static inline void alchemy_gpio1_set_value(int gpio, int v) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR); unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE); unsigned long r = v ? SYS_OUTPUTSET : SYS_OUTPUTCLR; - au_writel(mask, r); - au_sync(); + __raw_writel(mask, base + r); + wmb(); } static inline int alchemy_gpio1_get_value(int gpio) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR); unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE); - return au_readl(SYS_PINSTATERD) & mask; + return __raw_readl(base + SYS_PINSTATERD) & mask; } static inline int alchemy_gpio1_direction_input(int gpio) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR); unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE); - au_writel(mask, SYS_TRIOUTCLR); - au_sync(); + __raw_writel(mask, base + SYS_TRIOUTCLR); + wmb(); return 0; } @@ -257,27 +277,31 @@ static inline int alchemy_gpio1_to_irq(int gpio) */ static inline void __alchemy_gpio2_mod_dir(int gpio, int to_out) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); unsigned long mask = 1 << (gpio - ALCHEMY_GPIO2_BASE); - unsigned long d = au_readl(GPIO2_DIR); + unsigned long d = __raw_readl(base + GPIO2_DIR); + if (to_out) d |= mask; else d &= ~mask; - au_writel(d, GPIO2_DIR); - au_sync(); + __raw_writel(d, base + GPIO2_DIR); + wmb(); } static inline void alchemy_gpio2_set_value(int gpio, int v) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); unsigned long mask; mask = ((v) ? 0x00010001 : 0x00010000) << (gpio - ALCHEMY_GPIO2_BASE); - au_writel(mask, GPIO2_OUTPUT); - au_sync(); + __raw_writel(mask, base + GPIO2_OUTPUT); + wmb(); } static inline int alchemy_gpio2_get_value(int gpio) { - return au_readl(GPIO2_PINSTATE) & (1 << (gpio - ALCHEMY_GPIO2_BASE)); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); + return __raw_readl(base + GPIO2_PINSTATE) & (1 << (gpio - ALCHEMY_GPIO2_BASE)); } static inline int alchemy_gpio2_direction_input(int gpio) @@ -329,21 +353,23 @@ static inline int alchemy_gpio2_to_irq(int gpio) */ static inline void alchemy_gpio1_input_enable(void) { - au_writel(0, SYS_PININPUTEN); /* the write op is key */ - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR); + __raw_writel(0, base + SYS_PININPUTEN); /* the write op is key */ + wmb(); } /* GPIO2 shared interrupts and control */ static inline void __alchemy_gpio2_mod_int(int gpio2, int en) { - unsigned long r = au_readl(GPIO2_INTENABLE); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); + unsigned long r = __raw_readl(base + GPIO2_INTENABLE); if (en) r |= 1 << gpio2; else r &= ~(1 << gpio2); - au_writel(r, GPIO2_INTENABLE); - au_sync(); + __raw_writel(r, base + GPIO2_INTENABLE); + wmb(); } /** @@ -418,10 +444,11 @@ static inline void alchemy_gpio2_disable_int(int gpio2) */ static inline void alchemy_gpio2_enable(void) { - au_writel(3, GPIO2_ENABLE); /* reset, clock enabled */ - au_sync(); - au_writel(1, GPIO2_ENABLE); /* clock enabled */ - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); + __raw_writel(3, base + GPIO2_ENABLE); /* reset, clock enabled */ + wmb(); + __raw_writel(1, base + GPIO2_ENABLE); /* clock enabled */ + wmb(); } /** @@ -431,8 +458,9 @@ static inline void alchemy_gpio2_enable(void) */ static inline void alchemy_gpio2_disable(void) { - au_writel(2, GPIO2_ENABLE); /* reset, clock disabled */ - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); + __raw_writel(2, base + GPIO2_ENABLE); /* reset, clock disabled */ + wmb(); } /**********************************************************************/ @@ -556,6 +584,16 @@ static inline void gpio_set_value(int gpio, int v) alchemy_gpio_set_value(gpio, v); } +static inline int gpio_get_value_cansleep(unsigned gpio) +{ + return gpio_get_value(gpio); +} + +static inline void gpio_set_value_cansleep(unsigned gpio, int value) +{ + gpio_set_value(gpio, value); +} + static inline int gpio_is_valid(int gpio) { return alchemy_gpio_is_valid(gpio); @@ -581,10 +619,50 @@ static inline int gpio_request(unsigned gpio, const char *label) return 0; } +static inline int gpio_request_one(unsigned gpio, + unsigned long flags, const char *label) +{ + return 0; +} + +static inline int gpio_request_array(struct gpio *array, size_t num) +{ + return 0; +} + static inline void gpio_free(unsigned gpio) { } +static inline void gpio_free_array(struct gpio *array, size_t num) +{ +} + +static inline int gpio_set_debounce(unsigned gpio, unsigned debounce) +{ + return -ENOSYS; +} + +static inline int gpio_export(unsigned gpio, bool direction_may_change) +{ + return -ENOSYS; +} + +static inline int gpio_export_link(struct device *dev, const char *name, + unsigned gpio) +{ + return -ENOSYS; +} + +static inline int gpio_sysfs_set_active_low(unsigned gpio, int value) +{ + return -ENOSYS; +} + +static inline void gpio_unexport(unsigned gpio) +{ +} + #endif /* !CONFIG_ALCHEMY_GPIO_INDIRECT */ |