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MIPS: BCM47XX: add vectored interrupt support

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This adds support for vectored interrupt which is supported by the SoC
using a MIPS 74K CPU like the BCM4716 and BCM4706.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6290/
This commit is contained in:
Hauke Mehrtens 2013-12-22 14:36:32 +01:00 committed by Ralf Baechle
parent d775c966c0
commit 0ded1becc8
2 changed files with 24 additions and 0 deletions
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1
arch/mips/bcm47xx/Kconfig
View File

@ -21,6 +21,7 @@ config BCM47XX_SSB
config BCM47XX_BCMA
bool "BCMA Support for Broadcom BCM47XX"
select SYS_HAS_CPU_MIPS32_R2
select CPU_MIPSR2_IRQ_VI
select BCMA
select BCMA_HOST_SOC
select BCMA_DRIVER_MIPS

23
arch/mips/bcm47xx/irq.c
View File

@ -25,6 +25,7 @@
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/setup.h>
#include <asm/irq_cpu.h>
#include <bcm47xx.h>
@ -50,6 +51,18 @@ asmlinkage void plat_irq_dispatch(void)
do_IRQ(6);
}
#define DEFINE_HWx_IRQDISPATCH(x) \
static void bcm47xx_hw ## x ## _irqdispatch(void) \
{ \
do_IRQ(x); \
}
DEFINE_HWx_IRQDISPATCH(2)
DEFINE_HWx_IRQDISPATCH(3)
DEFINE_HWx_IRQDISPATCH(4)
DEFINE_HWx_IRQDISPATCH(5)
DEFINE_HWx_IRQDISPATCH(6)
DEFINE_HWx_IRQDISPATCH(7)
void __init arch_init_irq(void)
{
#ifdef CONFIG_BCM47XX_BCMA
@ -64,4 +77,14 @@ void __init arch_init_irq(void)
}
#endif
mips_cpu_irq_init();
if (cpu_has_vint) {
pr_info("Setting up vectored interrupts\n");
set_vi_handler(2, bcm47xx_hw2_irqdispatch);
set_vi_handler(3, bcm47xx_hw3_irqdispatch);
set_vi_handler(4, bcm47xx_hw4_irqdispatch);
set_vi_handler(5, bcm47xx_hw5_irqdispatch);
set_vi_handler(6, bcm47xx_hw6_irqdispatch);
set_vi_handler(7, bcm47xx_hw7_irqdispatch);
}
}