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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2006-09-19 00:24:10 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-09-25 11:25:49 +0200 |
| commit | 7412b10f7967ef4210ed6f793004d23642dc5140 (patch) | |
| tree | f82586f106e50c16b84878cee8e9265dfd9db5e5 /arch/arm/mach-iop33x | |
| parent | [ARM] 3828/1: iop3xx: remove useless loadsp macro (diff) | |
| download | linux-7412b10f7967ef4210ed6f793004d23642dc5140.tar.xz linux-7412b10f7967ef4210ed6f793004d23642dc5140.zip | |
[ARM] 3829/1: iop3xx: optimise irq entry macros
Squeeze three instructions out of the iop32x irq demuxer, and nine
out of the iop33x irq demuxer by using the hardware vector generator.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-iop33x')
| -rw-r--r-- | arch/arm/mach-iop33x/irq.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/mach-iop33x/irq.c b/arch/arm/mach-iop33x/irq.c index 675ed3989973..3c720551ac12 100644 --- a/arch/arm/mach-iop33x/irq.c +++ b/arch/arm/mach-iop33x/irq.c @@ -57,6 +57,20 @@ static inline void intstr_write1(u32 val) iop3xx_cp6_disable(); } +static inline void intbase_write(u32 val) +{ + iop3xx_cp6_enable(); + asm volatile("mcr p6, 0, %0, c12, c0, 0" : : "r" (val)); + iop3xx_cp6_disable(); +} + +static inline void intsize_write(u32 val) +{ + iop3xx_cp6_enable(); + asm volatile("mcr p6, 0, %0, c13, c0, 0" : : "r" (val)); + iop3xx_cp6_disable(); +} + static void iop331_irq_mask1 (unsigned int irq) { @@ -107,6 +121,8 @@ void __init iop331_init_irq(void) intctl_write1(0); intstr_write0(0); // treat all as IRQ intstr_write1(0); + intbase_write(0); + intsize_write(1); if(machine_is_iq80331()) // all interrupts are inputs to chip *IOP3XX_PCIIRSR = 0x0f; |