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ar71xx: add separate handlers for IP3 interrupts

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SVN-Revision: 27308
This commit is contained in:
Gabor Juhos 2011-06-29 08:57:29 +00:00
parent 59bff8bf18
commit 055e317ed8
1 changed files with 39 additions and 5 deletions
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44
target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
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@ -248,10 +248,9 @@ static void __init ar71xx_misc_irq_init(void)
}
/*
* The IP2 line is tied to a PCI/WMAC device. Drivers for these
* devices typically allocate coherent DMA memory for the descriptor
* ring, however the DMA controller may still have some unsynchronized
* data in the FIFO.
* The IP2/IP3 lines are tied to a PCI/WMAC/USB device. Drivers for
* these devices typically allocate coherent DMA memory, however the
* DMA controller may still have some unsynchronized data in the FIFO.
* Issue a flush in the handlers to ensure that the driver sees
* the update.
*/
@ -285,7 +284,37 @@ static void ar934x_ip2_handler(void)
do_IRQ(AR71XX_CPU_IRQ_IP2);
}
static void ar71xx_ip3_handler(void)
{
ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_USB);
do_IRQ(AR71XX_CPU_IRQ_USB);
}
static void ar724x_ip3_handler(void)
{
ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_USB);
do_IRQ(AR71XX_CPU_IRQ_USB);
}
static void ar913x_ip3_handler(void)
{
ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_USB);
do_IRQ(AR71XX_CPU_IRQ_USB);
}
static void ar933x_ip3_handler(void)
{
ar71xx_ddr_flush(AR933X_DDR_REG_FLUSH_USB);
do_IRQ(AR71XX_CPU_IRQ_USB);
}
static void ar934x_ip3_handler(void)
{
do_IRQ(AR71XX_CPU_IRQ_USB);
}
static void (*ip2_handler)(void);
static void (*ip3_handler)(void);
asmlinkage void plat_irq_dispatch(void)
{
@ -306,7 +335,7 @@ asmlinkage void plat_irq_dispatch(void)
do_IRQ(AR71XX_CPU_IRQ_GE1);
else if (pending & STATUSF_IP3)
do_IRQ(AR71XX_CPU_IRQ_USB);
ip3_handler();
else if (pending & STATUSF_IP6)
ar71xx_misc_irq_dispatch();
@ -321,28 +350,33 @@ void __init arch_init_irq(void)
case AR71XX_SOC_AR7141:
case AR71XX_SOC_AR7161:
ip2_handler = ar71xx_ip2_handler;
ip3_handler = ar71xx_ip3_handler;
break;
case AR71XX_SOC_AR7240:
case AR71XX_SOC_AR7241:
case AR71XX_SOC_AR7242:
ip2_handler = ar724x_ip2_handler;
ip3_handler = ar724x_ip3_handler;
break;
case AR71XX_SOC_AR9130:
case AR71XX_SOC_AR9132:
ip2_handler = ar913x_ip2_handler;
ip3_handler = ar913x_ip3_handler;
break;
case AR71XX_SOC_AR9330:
case AR71XX_SOC_AR9331:
ip2_handler = ar933x_ip2_handler;
ip3_handler = ar933x_ip3_handler;
break;
case AR71XX_SOC_AR9341:
case AR71XX_SOC_AR9342:
case AR71XX_SOC_AR9344:
ip2_handler = ar934x_ip2_handler;
ip3_handler = ar934x_ip3_handler;
break;
default: