diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.8/031-MIPS-ath79-add-IRQ-handling-code-for-the-QCA955X-SoC.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-3.8/031-MIPS-ath79-add-IRQ-handling-code-for-the-QCA955X-SoC.patch | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/target/linux/ar71xx/patches-3.8/031-MIPS-ath79-add-IRQ-handling-code-for-the-QCA955X-SoC.patch b/target/linux/ar71xx/patches-3.8/031-MIPS-ath79-add-IRQ-handling-code-for-the-QCA955X-SoC.patch deleted file mode 100644 index dd79fa9415..0000000000 --- a/target/linux/ar71xx/patches-3.8/031-MIPS-ath79-add-IRQ-handling-code-for-the-QCA955X-SoC.patch +++ /dev/null @@ -1,246 +0,0 @@ -From f1c0239d61d6d43469133d144e458f485b6cbda6 Mon Sep 17 00:00:00 2001 -From: Gabor Juhos <juhosg@openwrt.org> -Date: Fri, 15 Feb 2013 18:53:47 +0000 -Subject: [PATCH] MIPS: ath79: add IRQ handling code for the QCA955X SoCs - -commit 53330332f176eaa9567481c69bbad8b2176b4eb5 upstream. - -The IRQ routing in the QCA955x SoCs is slightly -different from the routing implemented in the -already supported SoCs. - -Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com> -Cc: Giori, Kathy <kgiori@qca.qualcomm.com> -Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com> -Signed-off-by: Gabor Juhos <juhosg@openwrt.org> -Patchwork: http://patchwork.linux-mips.org/patch/4955/ -Signed-off-by: John Crispin <blogic@openwrt.org> ---- - arch/mips/ath79/irq.c | 110 ++++++++++++++++++++++-- - arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 32 +++++++ - arch/mips/include/asm/mach-ath79/irq.h | 6 +- - 3 files changed, 140 insertions(+), 8 deletions(-) - ---- a/arch/mips/ath79/irq.c -+++ b/arch/mips/ath79/irq.c -@@ -103,7 +103,10 @@ static void __init ath79_misc_irq_init(v - - if (soc_is_ar71xx() || soc_is_ar913x()) - ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask; -- else if (soc_is_ar724x() || soc_is_ar933x() || soc_is_ar934x()) -+ else if (soc_is_ar724x() || -+ soc_is_ar933x() || -+ soc_is_ar934x() || -+ soc_is_qca955x()) - ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack; - else - BUG(); -@@ -150,6 +153,88 @@ static void ar934x_ip2_irq_init(void) - irq_set_chained_handler(ATH79_CPU_IRQ(2), ar934x_ip2_irq_dispatch); - } - -+static void qca955x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc) -+{ -+ u32 status; -+ -+ disable_irq_nosync(irq); -+ -+ status = ath79_reset_rr(QCA955X_RESET_REG_EXT_INT_STATUS); -+ status &= QCA955X_EXT_INT_PCIE_RC1_ALL | QCA955X_EXT_INT_WMAC_ALL; -+ -+ if (status == 0) { -+ spurious_interrupt(); -+ goto enable; -+ } -+ -+ if (status & QCA955X_EXT_INT_PCIE_RC1_ALL) { -+ /* TODO: flush DDR? */ -+ generic_handle_irq(ATH79_IP2_IRQ(0)); -+ } -+ -+ if (status & QCA955X_EXT_INT_WMAC_ALL) { -+ /* TODO: flush DDR? */ -+ generic_handle_irq(ATH79_IP2_IRQ(1)); -+ } -+ -+enable: -+ enable_irq(irq); -+} -+ -+static void qca955x_ip3_irq_dispatch(unsigned int irq, struct irq_desc *desc) -+{ -+ u32 status; -+ -+ disable_irq_nosync(irq); -+ -+ status = ath79_reset_rr(QCA955X_RESET_REG_EXT_INT_STATUS); -+ status &= QCA955X_EXT_INT_PCIE_RC2_ALL | -+ QCA955X_EXT_INT_USB1 | -+ QCA955X_EXT_INT_USB2; -+ -+ if (status == 0) { -+ spurious_interrupt(); -+ goto enable; -+ } -+ -+ if (status & QCA955X_EXT_INT_USB1) { -+ /* TODO: flush DDR? */ -+ generic_handle_irq(ATH79_IP3_IRQ(0)); -+ } -+ -+ if (status & QCA955X_EXT_INT_USB2) { -+ /* TODO: flush DDR? */ -+ generic_handle_irq(ATH79_IP3_IRQ(1)); -+ } -+ -+ if (status & QCA955X_EXT_INT_PCIE_RC2_ALL) { -+ /* TODO: flush DDR? */ -+ generic_handle_irq(ATH79_IP3_IRQ(2)); -+ } -+ -+enable: -+ enable_irq(irq); -+} -+ -+static void qca955x_irq_init(void) -+{ -+ int i; -+ -+ for (i = ATH79_IP2_IRQ_BASE; -+ i < ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT; i++) -+ irq_set_chip_and_handler(i, &dummy_irq_chip, -+ handle_level_irq); -+ -+ irq_set_chained_handler(ATH79_CPU_IRQ(2), qca955x_ip2_irq_dispatch); -+ -+ for (i = ATH79_IP3_IRQ_BASE; -+ i < ATH79_IP3_IRQ_BASE + ATH79_IP3_IRQ_COUNT; i++) -+ irq_set_chip_and_handler(i, &dummy_irq_chip, -+ handle_level_irq); -+ -+ irq_set_chained_handler(ATH79_CPU_IRQ(3), qca955x_ip3_irq_dispatch); -+} -+ - asmlinkage void plat_irq_dispatch(void) - { - unsigned long pending; -@@ -185,6 +270,17 @@ asmlinkage void plat_irq_dispatch(void) - * Issue a flush in the handlers to ensure that the driver sees - * the update. - */ -+ -+static void ath79_default_ip2_handler(void) -+{ -+ do_IRQ(ATH79_CPU_IRQ(2)); -+} -+ -+static void ath79_default_ip3_handler(void) -+{ -+ do_IRQ(ATH79_CPU_IRQ(3)); -+} -+ - static void ar71xx_ip2_handler(void) - { - ath79_ddr_wb_flush(AR71XX_DDR_REG_FLUSH_PCI); -@@ -209,11 +305,6 @@ static void ar933x_ip2_handler(void) - do_IRQ(ATH79_CPU_IRQ(2)); - } - --static void ar934x_ip2_handler(void) --{ -- do_IRQ(ATH79_CPU_IRQ(2)); --} -- - static void ar71xx_ip3_handler(void) - { - ath79_ddr_wb_flush(AR71XX_DDR_REG_FLUSH_USB); -@@ -259,8 +350,11 @@ void __init arch_init_irq(void) - ath79_ip2_handler = ar933x_ip2_handler; - ath79_ip3_handler = ar933x_ip3_handler; - } else if (soc_is_ar934x()) { -- ath79_ip2_handler = ar934x_ip2_handler; -+ ath79_ip2_handler = ath79_default_ip2_handler; - ath79_ip3_handler = ar934x_ip3_handler; -+ } else if (soc_is_qca955x()) { -+ ath79_ip2_handler = ath79_default_ip2_handler; -+ ath79_ip3_handler = ath79_default_ip3_handler; - } else { - BUG(); - } -@@ -271,4 +365,6 @@ void __init arch_init_irq(void) - - if (soc_is_ar934x()) - ar934x_ip2_irq_init(); -+ else if (soc_is_qca955x()) -+ qca955x_irq_init(); - } ---- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h -+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h -@@ -300,6 +300,7 @@ - #define AR934X_RESET_REG_PCIE_WMAC_INT_STATUS 0xac - - #define QCA955X_RESET_REG_BOOTSTRAP 0xb0 -+#define QCA955X_RESET_REG_EXT_INT_STATUS 0xac - - #define MISC_INT_ETHSW BIT(12) - #define MISC_INT_TIMER4 BIT(10) -@@ -398,6 +399,37 @@ - AR934X_PCIE_WMAC_INT_PCIE_RC1 | AR934X_PCIE_WMAC_INT_PCIE_RC2 | \ - AR934X_PCIE_WMAC_INT_PCIE_RC3) - -+#define QCA955X_EXT_INT_WMAC_MISC BIT(0) -+#define QCA955X_EXT_INT_WMAC_TX BIT(1) -+#define QCA955X_EXT_INT_WMAC_RXLP BIT(2) -+#define QCA955X_EXT_INT_WMAC_RXHP BIT(3) -+#define QCA955X_EXT_INT_PCIE_RC1 BIT(4) -+#define QCA955X_EXT_INT_PCIE_RC1_INT0 BIT(5) -+#define QCA955X_EXT_INT_PCIE_RC1_INT1 BIT(6) -+#define QCA955X_EXT_INT_PCIE_RC1_INT2 BIT(7) -+#define QCA955X_EXT_INT_PCIE_RC1_INT3 BIT(8) -+#define QCA955X_EXT_INT_PCIE_RC2 BIT(12) -+#define QCA955X_EXT_INT_PCIE_RC2_INT0 BIT(13) -+#define QCA955X_EXT_INT_PCIE_RC2_INT1 BIT(14) -+#define QCA955X_EXT_INT_PCIE_RC2_INT2 BIT(15) -+#define QCA955X_EXT_INT_PCIE_RC2_INT3 BIT(16) -+#define QCA955X_EXT_INT_USB1 BIT(24) -+#define QCA955X_EXT_INT_USB2 BIT(28) -+ -+#define QCA955X_EXT_INT_WMAC_ALL \ -+ (QCA955X_EXT_INT_WMAC_MISC | QCA955X_EXT_INT_WMAC_TX | \ -+ QCA955X_EXT_INT_WMAC_RXLP | QCA955X_EXT_INT_WMAC_RXHP) -+ -+#define QCA955X_EXT_INT_PCIE_RC1_ALL \ -+ (QCA955X_EXT_INT_PCIE_RC1 | QCA955X_EXT_INT_PCIE_RC1_INT0 | \ -+ QCA955X_EXT_INT_PCIE_RC1_INT1 | QCA955X_EXT_INT_PCIE_RC1_INT2 | \ -+ QCA955X_EXT_INT_PCIE_RC1_INT3) -+ -+#define QCA955X_EXT_INT_PCIE_RC2_ALL \ -+ (QCA955X_EXT_INT_PCIE_RC2 | QCA955X_EXT_INT_PCIE_RC2_INT0 | \ -+ QCA955X_EXT_INT_PCIE_RC2_INT1 | QCA955X_EXT_INT_PCIE_RC2_INT2 | \ -+ QCA955X_EXT_INT_PCIE_RC2_INT3) -+ - #define REV_ID_MAJOR_MASK 0xfff0 - #define REV_ID_MAJOR_AR71XX 0x00a0 - #define REV_ID_MAJOR_AR913X 0x00b0 ---- a/arch/mips/include/asm/mach-ath79/irq.h -+++ b/arch/mips/include/asm/mach-ath79/irq.h -@@ -10,7 +10,7 @@ - #define __ASM_MACH_ATH79_IRQ_H - - #define MIPS_CPU_IRQ_BASE 0 --#define NR_IRQS 48 -+#define NR_IRQS 51 - - #define ATH79_CPU_IRQ(_x) (MIPS_CPU_IRQ_BASE + (_x)) - -@@ -26,6 +26,10 @@ - #define ATH79_IP2_IRQ_COUNT 2 - #define ATH79_IP2_IRQ(_x) (ATH79_IP2_IRQ_BASE + (_x)) - -+#define ATH79_IP3_IRQ_BASE (ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT) -+#define ATH79_IP3_IRQ_COUNT 3 -+#define ATH79_IP3_IRQ(_x) (ATH79_IP3_IRQ_BASE + (_x)) -+ - #include_next <irq.h> - - #endif /* __ASM_MACH_ATH79_IRQ_H */ |