diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
commit | af7a535688a758d15f06a98833e6a143b29af9de (patch) | |
tree | bac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/arm/mach-ixp4xx/include/mach/entry-macro.S | |
parent | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff) | |
parent | c41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff) |
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/arm/mach-ixp4xx/include/mach/entry-macro.S')
-rw-r--r-- | arch/arm/mach-ixp4xx/include/mach/entry-macro.S | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/include/mach/entry-macro.S b/arch/arm/mach-ixp4xx/include/mach/entry-macro.S new file mode 100644 index 00000000000..f2e14e94ed1 --- /dev/null +++ b/arch/arm/mach-ixp4xx/include/mach/entry-macro.S @@ -0,0 +1,47 @@ +/* + * arch/arm/mach-ixp4xx/include/mach/entry-macro.S + * + * Low-level IRQ helper macros for IXP4xx-based platforms + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ +#include <mach/hardware.h> + + .macro disable_fiq + .endm + + .macro get_irqnr_preamble, base, tmp + .endm + + .macro arch_ret_to_user, tmp1, tmp2 + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + ldr \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP_OFFSET) + ldr \irqstat, [\irqstat] @ get interrupts + cmp \irqstat, #0 + beq 1001f @ upper IRQ? + clz \irqnr, \irqstat + mov \base, #31 + sub \irqnr, \base, \irqnr + b 1002f @ lower IRQ being + @ handled + +1001: + /* + * IXP465/IXP435 has an upper IRQ status register + */ +#if defined(CONFIG_CPU_IXP46X) || defined(CONFIG_CPU_IXP43X) + ldr \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP2_OFFSET) + ldr \irqstat, [\irqstat] @ get upper interrupts + mov \irqnr, #63 + clz \irqstat, \irqstat + cmp \irqstat, #32 + subne \irqnr, \irqnr, \irqstat +#endif +1002: + .endm + + |