@@ -30,6 +30,7 @@
#include <linux/clk-provider.h>
#include <asm/exception.h>
+#include <asm/mach/irq.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/system_misc.h>
@@ -91,7 +92,7 @@ static void int1_unmask(struct irq_data *d)
}
static struct irq_chip int1_chip = {
- .name = "Interrupt Vector 1 ",
+ .name = "Interrupt Vector 1",
.irq_ack = int1_ack,
.irq_eoi = int1_eoi,
.irq_mask = int1_mask,
@@ -128,13 +129,37 @@ static void int2_unmask(struct irq_data *d)
}
static struct irq_chip int2_chip = {
- .name = "Interrupt Vector 2 ",
+ .name = "Interrupt Vector 2",
.irq_ack = int2_ack,
.irq_eoi = int2_eoi,
.irq_mask = int2_mask,
.irq_unmask = int2_unmask,
};
+static void int3_mask(struct irq_data *d)
+{
+ u32 intmr3;
+
+ intmr3 = clps_readl(INTMR3);
+ intmr3 &= ~(1 << (d->irq - 32));
+ clps_writel(intmr3, INTMR3);
+}
+
+static void int3_unmask(struct irq_data *d)
+{
+ u32 intmr3;
+
+ intmr3 = clps_readl(INTMR3);
+ intmr3 |= 1 << (d->irq - 32);
+ clps_writel(intmr3, INTMR3);
+}
+
+static struct irq_chip int3_chip = {
+ .name = "Interrupt Vector 3",
+ .irq_mask = int3_mask,
+ .irq_unmask = int3_unmask,
+};
+
static struct {
int nr;
struct irq_chip *chip;
@@ -188,6 +213,14 @@ void __init clps711x_init_irq(void)
set_irq_flags(clps711x_irqdescs[i].nr,
IRQF_VALID | IRQF_PROBE);
}
+
+ if (IS_ENABLED(CONFIG_FIQ)) {
+ init_FIQ(0);
+ irq_set_chip_and_handler(IRQ_DAIINT, &int3_chip,
+ handle_bad_irq);
+ set_irq_flags(IRQ_DAIINT,
+ IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
+ }
}
inline u32 fls16(u32 x)
@@ -4,7 +4,7 @@
* Common bits.
*/
-#define CLPS711X_NR_IRQS (30)
+#define CLPS711X_NR_IRQS (33)
#define CLPS711X_NR_GPIO (4 * 8 + 3)
#define CLPS711X_GPIO(prt, bit) ((prt) * 8 + (bit))
@@ -298,4 +298,7 @@
#define IRQ_UTXINT2 (16 + 12)
#define IRQ_URXINT2 (16 + 13)
+/* INTSR3 Interrupts */
+#define IRQ_DAIINT (32 + 0)
+
#endif /* __MACH_CLPS711X_H */
CLPS711X-target CPU can have a several FIQ interrupts. With this patch we adds handling for a one which will be used for ALSA PCM later. Since FIQ have a separate handler we only add "mask" and "unmask" calls which will used for enable/disable_irq functions. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> --- arch/arm/mach-clps711x/common.c | 37 ++++++++++++++++++++++- arch/arm/mach-clps711x/common.h | 2 +- arch/arm/mach-clps711x/include/mach/clps711x.h | 3 ++ 3 files changed, 39 insertions(+), 3 deletions(-)