diff options
| -rw-r--r-- | target/linux/ar71xx/patches-3.3/210-MIPS-ath79-simplify-misc-irq-handling.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.3/210-MIPS-ath79-simplify-misc-irq-handling.patch b/target/linux/ar71xx/patches-3.3/210-MIPS-ath79-simplify-misc-irq-handling.patch new file mode 100644 index 0000000000..84a8ca36fc --- /dev/null +++ b/target/linux/ar71xx/patches-3.3/210-MIPS-ath79-simplify-misc-irq-handling.patch @@ -0,0 +1,66 @@ +--- a/arch/mips/ath79/irq.c ++++ b/arch/mips/ath79/irq.c +@@ -35,44 +35,17 @@ static void ath79_misc_irq_handler(unsig + pending = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS) & + __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); + +- if (pending & MISC_INT_UART) +- generic_handle_irq(ATH79_MISC_IRQ_UART); +- +- else if (pending & MISC_INT_DMA) +- generic_handle_irq(ATH79_MISC_IRQ_DMA); +- +- else if (pending & MISC_INT_PERFC) +- generic_handle_irq(ATH79_MISC_IRQ_PERFC); +- +- else if (pending & MISC_INT_TIMER) +- generic_handle_irq(ATH79_MISC_IRQ_TIMER); +- +- else if (pending & MISC_INT_TIMER2) +- generic_handle_irq(ATH79_MISC_IRQ_TIMER2); +- +- else if (pending & MISC_INT_TIMER3) +- generic_handle_irq(ATH79_MISC_IRQ_TIMER3); +- +- else if (pending & MISC_INT_TIMER4) +- generic_handle_irq(ATH79_MISC_IRQ_TIMER4); +- +- else if (pending & MISC_INT_OHCI) +- generic_handle_irq(ATH79_MISC_IRQ_OHCI); +- +- else if (pending & MISC_INT_ERROR) +- generic_handle_irq(ATH79_MISC_IRQ_ERROR); +- +- else if (pending & MISC_INT_GPIO) +- generic_handle_irq(ATH79_MISC_IRQ_GPIO); +- +- else if (pending & MISC_INT_WDOG) +- generic_handle_irq(ATH79_MISC_IRQ_WDOG); ++ if (!pending) { ++ spurious_interrupt(); ++ return; ++ } + +- else if (pending & MISC_INT_ETHSW) +- generic_handle_irq(ATH79_MISC_IRQ_ETHSW); ++ while (pending) { ++ int bit = __ffs(pending); + +- else +- spurious_interrupt(); ++ generic_handle_irq(ATH79_MISC_IRQ(bit)); ++ pending &= ~BIT(bit); ++ } + } + + static void ar71xx_misc_irq_unmask(struct irq_data *d) +--- a/arch/mips/include/asm/mach-ath79/irq.h ++++ b/arch/mips/include/asm/mach-ath79/irq.h +@@ -14,6 +14,7 @@ + + #define ATH79_MISC_IRQ_BASE 8 + #define ATH79_MISC_IRQ_COUNT 32 ++#define ATH79_MISC_IRQ(_x) (ATH79_MISC_IRQ_BASE + (_x)) + + #define ATH79_PCI_IRQ_BASE (ATH79_MISC_IRQ_BASE + ATH79_MISC_IRQ_COUNT) + #define ATH79_PCI_IRQ_COUNT 6 |