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ARM: versatile: convert to MULTI_IRQ_HANDLER

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Now that there is a generic IRQ handler for multiple VIC devices use it
for versatile to help building multi platform kernels.

Cc: Russell King <linux@arm.linux.org.uk>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
This commit is contained in:
Jamie Iles 2011-09-27 20:46:10 +01:00 committed by Marc Zyngier
parent b7378eafb3
commit c8be7acd63
5 changed files with 7 additions and 30 deletions
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1
arch/arm/Kconfig
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@ -294,6 +294,7 @@ config ARCH_VERSATILE
select PLAT_VERSATILE_CLCD
select PLAT_VERSATILE_FPGA_IRQ
select ARM_TIMER_SP804
select MULTI_IRQ_HANDLER
help
This enables support for ARM Ltd Versatile board.

30
arch/arm/mach-versatile/include/mach/entry-macro.S
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@ -7,39 +7,9 @@
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <mach/hardware.h>
#include <mach/platform.h>
#include <asm/hardware/vic.h>
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
ldr \base, =IO_ADDRESS(VERSATILE_VIC_BASE)
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
ldr \irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status
mov \irqnr, #0
teq \irqstat, #0
beq 1003f
1001: tst \irqstat, #15
bne 1002f
add \irqnr, \irqnr, #4
movs \irqstat, \irqstat, lsr #4
bne 1001b
1002: tst \irqstat, #1
bne 1003f
add \irqnr, \irqnr, #1
movs \irqstat, \irqstat, lsr #1
bne 1002b
1003: /* EQ will be set if no irqs pending */
@ clz \irqnr, \irqstat
@1003: /* EQ will be set if we reach MAXIRQNUM */
.endm

2
arch/arm/mach-versatile/versatile_ab.c
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@ -27,6 +27,7 @@
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/hardware/vic.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -39,6 +40,7 @@ MACHINE_START(VERSATILE_AB, "ARM-Versatile AB")
.map_io = versatile_map_io,
.init_early = versatile_init_early,
.init_irq = versatile_init_irq,
.handle_irq = vic_handle_irq,
.timer = &versatile_timer,
.init_machine = versatile_init,
MACHINE_END

2
arch/arm/mach-versatile/versatile_dt.c
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@ -24,6 +24,7 @@
#include <linux/init.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <asm/hardware/vic.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -45,6 +46,7 @@ DT_MACHINE_START(VERSATILE_PB, "ARM-Versatile (Device Tree Support)")
.map_io = versatile_map_io,
.init_early = versatile_init_early,
.init_irq = versatile_init_irq,
.handle_irq = vic_handle_irq,
.timer = &versatile_timer,
.init_machine = versatile_dt_init,
.dt_compat = versatile_dt_match,

2
arch/arm/mach-versatile/versatile_pb.c
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@ -28,6 +28,7 @@
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/hardware/vic.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
@ -107,6 +108,7 @@ MACHINE_START(VERSATILE_PB, "ARM-Versatile PB")
.map_io = versatile_map_io,
.init_early = versatile_init_early,
.init_irq = versatile_init_irq,
.handle_irq = vic_handle_irq,
.timer = &versatile_timer,
.init_machine = versatile_pb_init,
MACHINE_END