From 5130216265f6f924a4ba8214787241be96d93467 Mon Sep 17 00:00:00 2001 From: Barry Song Date: Tue, 19 Jun 2012 15:00:05 +0800 Subject: PINCTRL: SiRF: add GPIO and GPIO irq support in CSR SiRFprimaII In SiRFprimaII, Each GPIO pin can be configured as input or output independently. If a GPIO is configured as input, it can also be enabled as an interrupt source (either edge or level triggered). These pins must be either MUXed as GPIO or other function pads. Signed-off-by: Yuping Luo Signed-off-by: Barry Song Acked-by: Linus Walleij --- arch/arm/mach-prima2/include/mach/gpio.h | 13 +++++++++++++ arch/arm/mach-prima2/include/mach/irqs.h | 2 +- 2 files changed, 14 insertions(+), 1 deletion(-) create mode 100644 arch/arm/mach-prima2/include/mach/gpio.h (limited to 'arch/arm/mach-prima2') diff --git a/arch/arm/mach-prima2/include/mach/gpio.h b/arch/arm/mach-prima2/include/mach/gpio.h new file mode 100644 index 00000000000..1904bb03876 --- /dev/null +++ b/arch/arm/mach-prima2/include/mach/gpio.h @@ -0,0 +1,13 @@ +#ifndef __MACH_GPIO_H +#define __MACH_GPIO_H + +/* Pull up/down values */ +enum sirfsoc_gpio_pull { + SIRFSOC_GPIO_PULL_NONE, + SIRFSOC_GPIO_PULL_UP, + SIRFSOC_GPIO_PULL_DOWN, +}; + +void sirfsoc_gpio_set_pull(unsigned gpio, unsigned mode); + +#endif diff --git a/arch/arm/mach-prima2/include/mach/irqs.h b/arch/arm/mach-prima2/include/mach/irqs.h index bb354f952fd..f6014a07541 100644 --- a/arch/arm/mach-prima2/include/mach/irqs.h +++ b/arch/arm/mach-prima2/include/mach/irqs.h @@ -11,7 +11,7 @@ #define SIRFSOC_INTENAL_IRQ_START 0 #define SIRFSOC_INTENAL_IRQ_END 59 - +#define SIRFSOC_GPIO_IRQ_START (SIRFSOC_INTENAL_IRQ_END + 1) #define NR_IRQS 220 #endif -- cgit v1.2.3-70-g09d2 From debeaf6c2ded82bea65c1a487fb629fb0d2bb66f Mon Sep 17 00:00:00 2001 From: Barry Song Date: Mon, 30 Jul 2012 13:29:30 +0800 Subject: ARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes The only way to write LATCHED registers to write LATCH_BIT to LATCH register, that will latch COUNTER into LATCHED.e.g. writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base + SIRFSOC_TIMER_LATCH); Writing values to LATCHED registers directly is useless at all. Signed-off-by: Barry Song Signed-off-by: Olof Johansson --- arch/arm/mach-prima2/timer.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/arm/mach-prima2') diff --git a/arch/arm/mach-prima2/timer.c b/arch/arm/mach-prima2/timer.c index 0d024b1e916..f224107de7b 100644 --- a/arch/arm/mach-prima2/timer.c +++ b/arch/arm/mach-prima2/timer.c @@ -132,11 +132,11 @@ static void sirfsoc_clocksource_resume(struct clocksource *cs) { int i; - for (i = 0; i < SIRFSOC_TIMER_REG_CNT; i++) + for (i = 0; i < SIRFSOC_TIMER_REG_CNT - 2; i++) writel_relaxed(sirfsoc_timer_reg_val[i], sirfsoc_timer_base + sirfsoc_timer_reg_list[i]); - writel_relaxed(sirfsoc_timer_reg_val[i - 2], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_LO); - writel_relaxed(sirfsoc_timer_reg_val[i - 1], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_HI); + writel_relaxed(sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT - 2], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_LO); + writel_relaxed(sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT - 1], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_HI); } static struct clock_event_device sirfsoc_clockevent = { -- cgit v1.2.3-70-g09d2