diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.2/112-MIPS-ath79-fix-a-wrong-IRQ-number.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-3.2/112-MIPS-ath79-fix-a-wrong-IRQ-number.patch | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.2/112-MIPS-ath79-fix-a-wrong-IRQ-number.patch b/target/linux/ar71xx/patches-3.2/112-MIPS-ath79-fix-a-wrong-IRQ-number.patch new file mode 100644 index 000000000..ccb721d36 --- /dev/null +++ b/target/linux/ar71xx/patches-3.2/112-MIPS-ath79-fix-a-wrong-IRQ-number.patch @@ -0,0 +1,75 @@ +From cfb725275ea25857e8f0e3bf358fff7c84cc787c Mon Sep 17 00:00:00 2001 +From: Gabor Juhos <juhosg@openwrt.org> +Date: Tue, 22 Nov 2011 13:59:39 +0100 +Subject: [PATCH 12/35] MIPS: ath79: fix a wrong IRQ number + +The Ubiquiti XM board setup code uses an invalid +IRQ number, because it if above of NR_IRQS. This +leads to failed 'request_irq' calls: + + ath9k 0000:00:00.0: request_irq failed + ath9k: probe of 0000:00:00.0 failed with error -22 + +Preserve some IRQ numbers for the built-in IRQ +controller of PCI host controllers in the +AR71XX/AR724X SoCs, and use the correct IRQ +number in the board setup code. + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> + +v2: - no changes + +The IRQ controller code is also missing, that will be +added in a separate patch. +--- + arch/mips/ath79/mach-ubnt-xm.c | 5 +++-- + arch/mips/include/asm/mach-ath79/irq.h | 6 +++++- + 2 files changed, 8 insertions(+), 3 deletions(-) + +--- a/arch/mips/ath79/mach-ubnt-xm.c ++++ b/arch/mips/ath79/mach-ubnt-xm.c +@@ -17,6 +17,8 @@ + #include <linux/ath9k_platform.h> + #endif /* CONFIG_PCI */ + ++#include <asm/mach-ath79/irq.h> ++ + #include "machtypes.h" + #include "dev-gpio-buttons.h" + #include "dev-leds-gpio.h" +@@ -33,7 +35,6 @@ + #define UBNT_XM_KEYS_POLL_INTERVAL 20 + #define UBNT_XM_KEYS_DEBOUNCE_INTERVAL (3 * UBNT_XM_KEYS_POLL_INTERVAL) + +-#define UBNT_XM_PCI_IRQ 48 + #define UBNT_XM_EEPROM_ADDR (u8 *) KSEG1ADDR(0x1fff1000) + + static struct gpio_led ubnt_xm_leds_gpio[] __initdata = { +@@ -86,7 +87,7 @@ static struct ath9k_platform_data ubnt_x + + static struct ar724x_pci_data ubnt_xm_pci_data[] = { + { +- .irq = UBNT_XM_PCI_IRQ, ++ .irq = ATH79_PCI_IRQ(0), + .pdata = &ubnt_xm_eeprom_data, + }, + }; +--- a/arch/mips/include/asm/mach-ath79/irq.h ++++ b/arch/mips/include/asm/mach-ath79/irq.h +@@ -10,11 +10,15 @@ + #define __ASM_MACH_ATH79_IRQ_H + + #define MIPS_CPU_IRQ_BASE 0 +-#define NR_IRQS 40 ++#define NR_IRQS 46 + + #define ATH79_MISC_IRQ_BASE 8 + #define ATH79_MISC_IRQ_COUNT 32 + ++#define ATH79_PCI_IRQ_BASE (ATH79_MISC_IRQ_BASE + ATH79_MISC_IRQ_COUNT) ++#define ATH79_PCI_IRQ_COUNT 6 ++#define ATH79_PCI_IRQ(_x) (ATH79_PCI_IRQ_BASE + (_x)) ++ + #define ATH79_CPU_IRQ_IP2 (MIPS_CPU_IRQ_BASE + 2) + #define ATH79_CPU_IRQ_USB (MIPS_CPU_IRQ_BASE + 3) + #define ATH79_CPU_IRQ_GE0 (MIPS_CPU_IRQ_BASE + 4) |