From 0b0c4c2a6974eae7b96066cb0da35b526fe58468 Mon Sep 17 00:00:00 2001 From: "Mark A. Greer" Date: Wed, 15 Apr 2009 12:41:40 -0700 Subject: davinci: Integrate cp_intc support into low-level irq code Integrate the Common Platform Interrupt Controller (cp_intc) support into the low-level irq handling for davinci and similar platforms. Do it such that support for cp_intc and the original aintc can coexist in the same kernel binary. Signed-off-by: Mark A. Greer Signed-off-by: Kevin Hilman --- arch/arm/mach-davinci/include/mach/common.h | 1 + arch/arm/mach-davinci/include/mach/entry-macro.S | 19 +++++++++++++++++++ 2 files changed, 20 insertions(+) (limited to 'arch/arm/mach-davinci/include/mach') diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h index b773d92e7379..22db67744875 100644 --- a/arch/arm/mach-davinci/include/mach/common.h +++ b/arch/arm/mach-davinci/include/mach/common.h @@ -18,6 +18,7 @@ extern struct sys_timer davinci_timer; extern void davinci_irq_init(void); extern void __iomem *davinci_intc_base; +extern int davinci_intc_type; /* parameters describe VBUS sourcing for host mode */ extern void setup_usb(unsigned mA, unsigned potpgt_msec); diff --git a/arch/arm/mach-davinci/include/mach/entry-macro.S b/arch/arm/mach-davinci/include/mach/entry-macro.S index ed78851fe4ae..fbdebc7cb409 100644 --- a/arch/arm/mach-davinci/include/mach/entry-macro.S +++ b/arch/arm/mach-davinci/include/mach/entry-macro.S @@ -23,9 +23,28 @@ .endm .macro get_irqnr_and_base, irqnr, irqstat, base, tmp +#if defined(CONFIG_AINTC) && defined(CONFIG_CP_INTC) + ldr \tmp, =davinci_intc_type + ldr \tmp, [\tmp] + cmp \tmp, #DAVINCI_INTC_TYPE_CP_INTC + beq 1001f +#endif +#if defined(CONFIG_AINTC) ldr \tmp, [\base, #0x14] movs \tmp, \tmp, lsr #2 sub \irqnr, \tmp, #1 + b 1002f +#endif +#if defined(CONFIG_CP_INTC) +1001: ldr \irqnr, [\base, #0x80] /* get irq number */ + and \irqnr, \irqnr, #0xff /* irq is in bits 0-9 */ + mov \tmp, \irqnr, lsr #3 + and \tmp, \tmp, #0xfc + add \tmp, \tmp, #0x280 /* get the register offset */ + ldr \irqstat, [\base, \tmp] /* get the intc status */ + cmp \irqstat, #0x0 +#endif +1002: .endm .macro irq_prio_table -- cgit v1.2.2