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| author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
|---|---|---|
| committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
| commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
| tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/arm/mach-ixp4xx/include/mach/entry-macro.S | |
| parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
| parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/arm/mach-ixp4xx/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-ixp4xx/include/mach/entry-macro.S | 41 |
1 files changed, 41 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 00000000..79adf83e --- /dev/null +++ b/arch/arm/mach-ixp4xx/include/mach/entry-macro.S @@ -0,0 +1,41 @@ +/* + * 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 get_irqnr_preamble, base, tmp + .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 + + |