From 6bdfb22a8e1ffa37ae4ad35b87cb02958d1901e5 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Fri, 4 Jul 2008 12:37:12 +0900 Subject: sh: add interrupt ack code to sh4a This patch is based on interrupt acknowledge code for external interrupt sources on sh3 processors and adds on sh4a processors. Signed-off-by: Yoshihiro Shimoda Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/irq/intc.c | 31 +++++++++++++++++++++++-------- 1 file changed, 23 insertions(+), 8 deletions(-) (limited to 'arch/sh/kernel/cpu/irq/intc.c') diff --git a/arch/sh/kernel/cpu/irq/intc.c b/arch/sh/kernel/cpu/irq/intc.c index da5dae78788..8c70e201bde 100644 --- a/arch/sh/kernel/cpu/irq/intc.c +++ b/arch/sh/kernel/cpu/irq/intc.c @@ -62,7 +62,7 @@ struct intc_desc_int { #endif static unsigned int intc_prio_level[NR_IRQS]; /* for now */ -#ifdef CONFIG_CPU_SH3 +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) static unsigned long ack_handle[NR_IRQS]; #endif @@ -231,7 +231,7 @@ static void intc_disable(unsigned int irq) } } -#ifdef CONFIG_CPU_SH3 +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) static void intc_mask_ack(unsigned int irq) { struct intc_desc_int *d = get_intc_desc(irq); @@ -244,8 +244,23 @@ static void intc_mask_ack(unsigned int irq) if (handle) { addr = INTC_REG(d, _INTC_ADDR_D(handle), 0); - ctrl_inb(addr); - ctrl_outb(0x3f ^ set_field(0, 1, handle), addr); + switch (_INTC_FN(handle)) { + case REG_FN_MODIFY_BASE + 0: /* 8bit */ + ctrl_inb(addr); + ctrl_outb(0xff ^ set_field(0, 1, handle), addr); + break; + case REG_FN_MODIFY_BASE + 1: /* 16bit */ + ctrl_inw(addr); + ctrl_outw(0xffff ^ set_field(0, 1, handle), addr); + break; + case REG_FN_MODIFY_BASE + 3: /* 32bit */ + ctrl_inl(addr); + ctrl_outl(0xffffffff ^ set_field(0, 1, handle), addr); + break; + default: + BUG(); + break; + } } } #endif @@ -466,7 +481,7 @@ static unsigned int __init intc_prio_data(struct intc_desc *desc, return 0; } -#ifdef CONFIG_CPU_SH3 +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) static unsigned int __init intc_ack_data(struct intc_desc *desc, struct intc_desc_int *d, intc_enum enum_id) @@ -601,7 +616,7 @@ static void __init intc_register_irq(struct intc_desc *desc, /* irq should be disabled by default */ d->chip.mask(irq); -#ifdef CONFIG_CPU_SH3 +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) if (desc->ack_regs) ack_handle[irq] = intc_ack_data(desc, d, enum_id); #endif @@ -635,7 +650,7 @@ void __init register_intc_controller(struct intc_desc *desc) d->nr_reg += desc->prio_regs ? desc->nr_prio_regs * 2 : 0; d->nr_reg += desc->sense_regs ? desc->nr_sense_regs : 0; -#ifdef CONFIG_CPU_SH3 +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) d->nr_reg += desc->ack_regs ? desc->nr_ack_regs : 0; #endif d->reg = alloc_bootmem(d->nr_reg * sizeof(*d->reg)); @@ -676,7 +691,7 @@ void __init register_intc_controller(struct intc_desc *desc) d->chip.mask_ack = intc_disable; d->chip.set_type = intc_set_sense; -#ifdef CONFIG_CPU_SH3 +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) if (desc->ack_regs) { for (i = 0; i < desc->nr_ack_regs; i++) k += save_reg(d, k, desc->ack_regs[i].set_reg, 0); -- cgit v1.2.3