From 1f8081f539a80c3d36a17ecd094d104eae60c01c Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Tue, 26 Aug 2008 16:04:05 +0200 Subject: [ARM] mv78xx0: wire up ethernet error interrupt Wire up the ethernet port's error interrupt so that the mv643xx_eth driver can sleep for SMI event completion instead of having to busy-wait for it. Signed-off-by: Lennert Buytenhek Signed-off-by: Nicolas Pitre --- arch/arm/mach-mv78xx0/common.c | 7 ++++++- arch/arm/mach-mv78xx0/include/mach/entry-macro.S | 18 +++++++++++++----- arch/arm/mach-mv78xx0/include/mach/irqs.h | 7 ++++++- arch/arm/mach-mv78xx0/include/mach/mv78xx0.h | 2 ++ arch/arm/mach-mv78xx0/irq.c | 1 + 5 files changed, 28 insertions(+), 7 deletions(-) (limited to 'arch/arm/mach-mv78xx0') diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c index 953a26c469c..d56a05e8356 100644 --- a/arch/arm/mach-mv78xx0/common.c +++ b/arch/arm/mach-mv78xx0/common.c @@ -285,6 +285,11 @@ static struct resource mv78xx0_ge00_shared_resources[] = { .start = GE00_PHYS_BASE + 0x2000, .end = GE00_PHYS_BASE + 0x3fff, .flags = IORESOURCE_MEM, + }, { + .name = "ge err irq", + .start = IRQ_MV78XX0_GE_ERR, + .end = IRQ_MV78XX0_GE_ERR, + .flags = IORESOURCE_IRQ, }, }; @@ -294,7 +299,7 @@ static struct platform_device mv78xx0_ge00_shared = { .dev = { .platform_data = &mv78xx0_ge00_shared_data, }, - .num_resources = 1, + .num_resources = ARRAY_SIZE(mv78xx0_ge00_shared_resources), .resource = mv78xx0_ge00_shared_resources, }; diff --git a/arch/arm/mach-mv78xx0/include/mach/entry-macro.S b/arch/arm/mach-mv78xx0/include/mach/entry-macro.S index ed4a46bcd3b..fbfb2693ce6 100644 --- a/arch/arm/mach-mv78xx0/include/mach/entry-macro.S +++ b/arch/arm/mach-mv78xx0/include/mach/entry-macro.S @@ -26,14 +26,22 @@ ldr \tmp, [\base, #IRQ_MASK_LOW_OFF] mov \irqnr, #31 ands \irqstat, \irqstat, \tmp + bne 1001f @ if no low interrupts set, check high interrupts - ldreq \irqstat, [\base, #IRQ_CAUSE_HIGH_OFF] - ldreq \tmp, [\base, #IRQ_MASK_HIGH_OFF] - moveq \irqnr, #63 - andeqs \irqstat, \irqstat, \tmp + ldr \irqstat, [\base, #IRQ_CAUSE_HIGH_OFF] + ldr \tmp, [\base, #IRQ_MASK_HIGH_OFF] + mov \irqnr, #63 + ands \irqstat, \irqstat, \tmp + bne 1001f + + @ if no high interrupts set, check error interrupts + ldr \irqstat, [\base, #IRQ_CAUSE_ERR_OFF] + ldr \tmp, [\base, #IRQ_MASK_ERR_OFF] + mov \irqnr, #95 + ands \irqstat, \irqstat, \tmp @ find first active interrupt source - clzne \irqstat, \irqstat +1001: clzne \irqstat, \irqstat subne \irqnr, \irqnr, \irqstat .endm diff --git a/arch/arm/mach-mv78xx0/include/mach/irqs.h b/arch/arm/mach-mv78xx0/include/mach/irqs.h index 995d7fb8d06..bebc330281e 100644 --- a/arch/arm/mach-mv78xx0/include/mach/irqs.h +++ b/arch/arm/mach-mv78xx0/include/mach/irqs.h @@ -79,10 +79,15 @@ #define IRQ_MV78XX0_DB_IN 60 #define IRQ_MV78XX0_DB_OUT 61 +/* + * MV78xx0 Error Interrupt Controller + */ +#define IRQ_MV78XX0_GE_ERR 70 + /* * MV78XX0 General Purpose Pins */ -#define IRQ_MV78XX0_GPIO_START 64 +#define IRQ_MV78XX0_GPIO_START 96 #define NR_GPIO_IRQS GPIO_MAX #define NR_IRQS (IRQ_MV78XX0_GPIO_START + NR_GPIO_IRQS) diff --git a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h index ad664178d6e..ee9c5593ee9 100644 --- a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h +++ b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h @@ -71,8 +71,10 @@ #define BRIDGE_INT_TIMER1 0x0004 #define BRIDGE_INT_TIMER1_CLR (~0x0004) #define IRQ_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0200) +#define IRQ_CAUSE_ERR_OFF 0x0000 #define IRQ_CAUSE_LOW_OFF 0x0004 #define IRQ_CAUSE_HIGH_OFF 0x0008 +#define IRQ_MASK_ERR_OFF 0x000c #define IRQ_MASK_LOW_OFF 0x0010 #define IRQ_MASK_HIGH_OFF 0x0014 #define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300) diff --git a/arch/arm/mach-mv78xx0/irq.c b/arch/arm/mach-mv78xx0/irq.c index 28248d37b99..503e5d195ae 100644 --- a/arch/arm/mach-mv78xx0/irq.c +++ b/arch/arm/mach-mv78xx0/irq.c @@ -19,4 +19,5 @@ void __init mv78xx0_init_irq(void) { orion_irq_init(0, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF)); orion_irq_init(32, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF)); + orion_irq_init(64, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_ERR_OFF)); } -- cgit v1.2.3