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sh: rework ipr code

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This patch reworks the ipr code by grouping the offset array together
with the ipr_data structure in a new data structure called ipr_desc.
This new structure also contains the name of the controller in struct
irq_chip. The idea behind putting struct irq_chip in there is that we
can use offsetof() to locate the base addresses in the irq_chip
callbacks. This strategy has much in common with the recently merged
intc2 code.

One logic change has been made - the original ipr code enabled the
interrupts by default but with this patch they are all disabled by
default.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm
2007-06-15 18:56:19 +09:00
committed by Paul Mundt
parent 50f63f2518
commit 68abdbbb03
20 changed files with 429 additions and 326 deletions
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include/asm-sh/sh03/io.h
-4
View File
@@ -14,22 +14,18 @@
#define INTC_IPRD 0xffd00010UL
#define IRL0_IRQ 2
#define IRL0_IPR_ADDR INTC_IPRD
#define IRL0_IPR_POS 3
#define IRL0_PRIORITY 13
#define IRL1_IRQ 5
#define IRL1_IPR_ADDR INTC_IPRD
#define IRL1_IPR_POS 2
#define IRL1_PRIORITY 10
#define IRL2_IRQ 8
#define IRL2_IPR_ADDR INTC_IPRD
#define IRL2_IPR_POS 1
#define IRL2_PRIORITY 7
#define IRL3_IRQ 11
#define IRL3_IPR_ADDR INTC_IPRD
#define IRL3_IPR_POS 0
#define IRL3_PRIORITY 4