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authorBen Dooks <ben-linux@fluff.org>2010-01-07 14:41:38 +0900
committerBen Dooks <ben-linux@fluff.org>2010-01-15 17:10:16 +0900
commit47101ec73901183520de724fb5f9062c014236bb (patch)
tree9b29c818702dfb1825b819764c381d484cb01bf8 /arch
parent35accd2f6639a9245488f2f389e3c6372c7641e4 (diff)
ARM: S5PC1XX: Move to using standard timer IRQ handling code
Move to using the standard VIC/Timer IRQ handling code added previously to avoid duplicating code. Thanks to Marek Szyprowski for pointing out dual Kconfig change. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s5pc100/include/mach/tick.h2
-rw-r--r--arch/arm/plat-s5pc1xx/Kconfig1
-rw-r--r--arch/arm/plat-s5pc1xx/include/plat/irqs.h19
-rw-r--r--arch/arm/plat-s5pc1xx/irq.c88
4 files changed, 22 insertions, 88 deletions
diff --git a/arch/arm/mach-s5pc100/include/mach/tick.h b/arch/arm/mach-s5pc100/include/mach/tick.h
index d3de0f3591a..f338c9eec71 100644
--- a/arch/arm/mach-s5pc100/include/mach/tick.h
+++ b/arch/arm/mach-s5pc100/include/mach/tick.h
@@ -21,7 +21,7 @@
static inline u32 s3c24xx_ostimer_pending(void)
{
u32 pend = __raw_readl(S3C_VA_VIC0 + VIC_RAW_STATUS);
- return pend & 1 << (IRQ_TIMER4 - S5PC1XX_IRQ_VIC0(0));
+ return pend & 1 << (IRQ_TIMER4_VIC - S5PC1XX_IRQ_VIC0(0));
}
#define TICK_MAX (0xffffffff)
diff --git a/arch/arm/plat-s5pc1xx/Kconfig b/arch/arm/plat-s5pc1xx/Kconfig
index 5d97b1c3cef..256f0f9f1dd 100644
--- a/arch/arm/plat-s5pc1xx/Kconfig
+++ b/arch/arm/plat-s5pc1xx/Kconfig
@@ -12,6 +12,7 @@ config PLAT_S5PC1XX
select NO_IOPORT
select ARCH_REQUIRE_GPIOLIB
select SAMSUNG_CLKSRC
+ select SAMSUNG_IRQ_VIC_TIMER
select S3C_GPIO_TRACK
select S3C_GPIO_PULL_UPDOWN
select S3C_GPIO_CFG_S3C24XX
diff --git a/arch/arm/plat-s5pc1xx/include/plat/irqs.h b/arch/arm/plat-s5pc1xx/include/plat/irqs.h
index ef8736366f0..409c804315e 100644
--- a/arch/arm/plat-s5pc1xx/include/plat/irqs.h
+++ b/arch/arm/plat-s5pc1xx/include/plat/irqs.h
@@ -88,11 +88,11 @@
#define IRQ_MDMA S5PC1XX_IRQ_VIC0(18)
#define IRQ_PDMA0 S5PC1XX_IRQ_VIC0(19)
#define IRQ_PDMA1 S5PC1XX_IRQ_VIC0(20)
-#define IRQ_TIMER0 S5PC1XX_IRQ_VIC0(21)
-#define IRQ_TIMER1 S5PC1XX_IRQ_VIC0(22)
-#define IRQ_TIMER2 S5PC1XX_IRQ_VIC0(23)
-#define IRQ_TIMER3 S5PC1XX_IRQ_VIC0(24)
-#define IRQ_TIMER4 S5PC1XX_IRQ_VIC0(25)
+#define IRQ_TIMER0_VIC S5PC1XX_IRQ_VIC0(21)
+#define IRQ_TIMER1_VIC S5PC1XX_IRQ_VIC0(22)
+#define IRQ_TIMER2_VIC S5PC1XX_IRQ_VIC0(23)
+#define IRQ_TIMER3_VIC S5PC1XX_IRQ_VIC0(24)
+#define IRQ_TIMER4_VIC S5PC1XX_IRQ_VIC0(25)
#define IRQ_SYSTIMER S5PC1XX_IRQ_VIC0(26)
#define IRQ_WDT S5PC1XX_IRQ_VIC0(27)
#define IRQ_RTC_ALARM S5PC1XX_IRQ_VIC0(28)
@@ -171,8 +171,15 @@
#define IRQ_SDMIRQ S5PC1XX_IRQ_VIC2(30)
#define IRQ_SDMFIQ S5PC1XX_IRQ_VIC2(31)
+#define IRQ_TIMER(x) (IRQ_SDMFIQ + 1 + (x))
+#define IRQ_TIMER0 IRQ_TIMER(0)
+#define IRQ_TIMER1 IRQ_TIMER(1)
+#define IRQ_TIMER2 IRQ_TIMER(2)
+#define IRQ_TIMER3 IRQ_TIMER(3)
+#define IRQ_TIMER4 IRQ_TIMER(4)
+
/* External interrupt */
-#define S3C_IRQ_EINT_BASE (IRQ_SDMFIQ + 1)
+#define S3C_IRQ_EINT_BASE (IRQ_SDMFIQ + 6)
#define S3C_EINT(x) (S3C_IRQ_EINT_BASE + (x - 16))
#define IRQ_EINT(x) (x < 16 ? IRQ_EINT0 + x : S3C_EINT(x))
diff --git a/arch/arm/plat-s5pc1xx/irq.c b/arch/arm/plat-s5pc1xx/irq.c
index e44fd04ef33..ae233bdeb7e 100644
--- a/arch/arm/plat-s5pc1xx/irq.c
+++ b/arch/arm/plat-s5pc1xx/irq.c
@@ -20,77 +20,9 @@
#include <asm/hardware/vic.h>
#include <mach/map.h>
-#include <plat/regs-timer.h>
+#include <plat/irq-vic-timer.h>
#include <plat/cpu.h>
-/* Timer interrupt handling */
-
-static void s3c_irq_demux_timer(unsigned int base_irq, unsigned int sub_irq)
-{
- generic_handle_irq(sub_irq);
-}
-
-static void s3c_irq_demux_timer0(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_timer(irq, IRQ_TIMER0);
-}
-
-static void s3c_irq_demux_timer1(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_timer(irq, IRQ_TIMER1);
-}
-
-static void s3c_irq_demux_timer2(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_timer(irq, IRQ_TIMER2);
-}
-
-static void s3c_irq_demux_timer3(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_timer(irq, IRQ_TIMER3);
-}
-
-static void s3c_irq_demux_timer4(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_timer(irq, IRQ_TIMER4);
-}
-
-/* We assume the IRQ_TIMER0..IRQ_TIMER4 range is continuous. */
-
-static void s3c_irq_timer_mask(unsigned int irq)
-{
- u32 reg = __raw_readl(S3C64XX_TINT_CSTAT);
-
- reg &= 0x1f; /* mask out pending interrupts */
- reg &= ~(1 << (irq - IRQ_TIMER0));
- __raw_writel(reg, S3C64XX_TINT_CSTAT);
-}
-
-static void s3c_irq_timer_unmask(unsigned int irq)
-{
- u32 reg = __raw_readl(S3C64XX_TINT_CSTAT);
-
- reg &= 0x1f; /* mask out pending interrupts */
- reg |= 1 << (irq - IRQ_TIMER0);
- __raw_writel(reg, S3C64XX_TINT_CSTAT);
-}
-
-static void s3c_irq_timer_ack(unsigned int irq)
-{
- u32 reg = __raw_readl(S3C64XX_TINT_CSTAT);
-
- reg &= 0x1f; /* mask out pending interrupts */
- reg |= (1 << 5) << (irq - IRQ_TIMER0);
- __raw_writel(reg, S3C64XX_TINT_CSTAT);
-}
-
-static struct irq_chip s3c_irq_timer = {
- .name = "s3c-timer",
- .mask = s3c_irq_timer_mask,
- .unmask = s3c_irq_timer_unmask,
- .ack = s3c_irq_timer_ack,
-};
-
struct uart_irq {
void __iomem *regs;
unsigned int base_irq;
@@ -229,7 +161,7 @@ static void __init s5pc1xx_uart_irq(struct uart_irq *uirq)
void __init s5pc1xx_init_irq(u32 *vic_valid, int num)
{
int i;
- int uart, irq;
+ int uart;
printk(KERN_DEBUG "%s: initialising interrupts\n", __func__);
@@ -240,17 +172,11 @@ void __init s5pc1xx_init_irq(u32 *vic_valid, int num)
/* add the timer sub-irqs */
- set_irq_chained_handler(IRQ_TIMER0, s3c_irq_demux_timer0);
- set_irq_chained_handler(IRQ_TIMER1, s3c_irq_demux_timer1);
- set_irq_chained_handler(IRQ_TIMER2, s3c_irq_demux_timer2);
- set_irq_chained_handler(IRQ_TIMER3, s3c_irq_demux_timer3);
- set_irq_chained_handler(IRQ_TIMER4, s3c_irq_demux_timer4);
-
- for (irq = IRQ_TIMER0; irq <= IRQ_TIMER4; irq++) {
- set_irq_chip(irq, &s3c_irq_timer);
- set_irq_handler(irq, handle_level_irq);
- set_irq_flags(irq, IRQF_VALID);
- }
+ s3c_init_vic_timer_irq(IRQ_TIMER0_VIC, IRQ_TIMER0);
+ s3c_init_vic_timer_irq(IRQ_TIMER1_VIC, IRQ_TIMER1);
+ s3c_init_vic_timer_irq(IRQ_TIMER2_VIC, IRQ_TIMER2);
+ s3c_init_vic_timer_irq(IRQ_TIMER3_VIC, IRQ_TIMER3);
+ s3c_init_vic_timer_irq(IRQ_TIMER4_VIC, IRQ_TIMER4);
for (uart = 0; uart < ARRAY_SIZE(uart_irqs); uart++)
s5pc1xx_uart_irq(&uart_irqs[uart]);