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[ARM] pxa: allow IRQ_BOARD_END to be customized and make zylonite to use it

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The default value is 16 IRQs. Zylonite needs 32, ASIC3 based boards need 70.

My problem is still that due to the way IRQ_GPIO is hardcoded, ASIC3 based boards
need 70 IRQs starting at IRQ_BOARD_START. If I define ASIC3 IRQs similar to LoCoMo
or SA1111, things break as soon as something selects PXA_HAVE_BOARD_IRQS.
Increasing the default number of board IRQs to 70 instead doesn't seem very nice.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
This commit is contained in:
Philipp Zabel 2009-04-17 11:47:57 +02:00 committed by Eric Miao
parent 46580c0306
commit a01bd58449
2 changed files with 12 additions and 5 deletions
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1
arch/arm/mach-pxa/Kconfig
View File

@ -280,6 +280,7 @@ config MACH_ZYLONITE
select PXA3xx
select PXA_SSP
select HAVE_PWM
select PXA_HAVE_BOARD_IRQS
config MACH_LITTLETON
bool "PXA3xx Form Factor Platform (aka Littleton)"

16
arch/arm/mach-pxa/include/mach/irqs.h
View File

@ -91,13 +91,21 @@
#define IRQ_TO_GPIO(i) (((i) < IRQ_GPIO(2)) ? ((i) - IRQ_GPIO0) : IRQ_TO_GPIO_2_x(i))
/*
* The next 16 interrupts are for board specific purposes. Since
* The following interrupts are for board specific purposes. Since
* the kernel can only run on one machine at a time, we can re-use
* these. If you need more, increase IRQ_BOARD_END, but keep it
* within sensible limits.
* these. There will be 16 IRQs by default. If it is not enough,
* IRQ_BOARD_END is allowed be customized for each board, but keep
* the numbers within sensible limits and in descending order, so
* when multiple config options are selected, the maximum will be
* used.
*/
#define IRQ_BOARD_START (PXA_GPIO_IRQ_BASE + PXA_GPIO_IRQ_NUM)
#if defined(CONFIG_MACH_ZYLONITE)
#define IRQ_BOARD_END (IRQ_BOARD_START + 32)
#else
#define IRQ_BOARD_END (IRQ_BOARD_START + 16)
#endif
#define IRQ_SA1111_START (IRQ_BOARD_END)
#define IRQ_GPAIN0 (IRQ_BOARD_END + 0)
@ -188,8 +196,6 @@
#define NR_IRQS (IRQ_LOCOMO_SPI_TEND + 1)
#elif defined(CONFIG_PXA_HAVE_BOARD_IRQS)
#define NR_IRQS (IRQ_BOARD_END)
#elif defined(CONFIG_MACH_ZYLONITE)
#define NR_IRQS (IRQ_BOARD_START + 32)
#else
#define NR_IRQS (IRQ_BOARD_START)
#endif