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- /*
- * arch/arm/mach-imx/include/mach/entry-macro.S
- *
- * Low-level IRQ helper macros for iMX-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
- #define AITC_NIVECSR 0x40
- .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- ldr \base, =IO_ADDRESS(IMX_AITC_BASE)
- @ Load offset & priority of the highest priority
- @ interrupt pending.
- ldr \irqstat, [\base, #AITC_NIVECSR]
- @ Shift off the priority leaving the offset or
- @ "interrupt number", use arithmetic shift to
- @ transform illegal source (0xffff) as -1
- mov \irqnr, \irqstat, asr #16
- adds \tmp, \irqnr, #1
- .endm
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