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| author | Ingo Molnar <mingo@elte.hu> | 2008-08-13 13:08:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-13 13:08:47 +0200 |
| commit | a12e61df4fa1cfae7a6b76976fa65a6fcb048e3f (patch) | |
| tree | 957c915298b299902aa80afa7c78e94c71b3dc25 /arch/arm/mach-ep93xx/include/mach/entry-macro.S | |
| parent | 7b27718bdb1b70166383dec91391df5534d449ee (diff) | |
| parent | 30a2f3c60a84092c8084dfe788b710f8d0768cd4 (diff) | |
Merge commit 'v2.6.27-rc3' into x86/urgent
Diffstat (limited to 'arch/arm/mach-ep93xx/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-ep93xx/include/mach/entry-macro.S | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/include/mach/entry-macro.S b/arch/arm/mach-ep93xx/include/mach/entry-macro.S new file mode 100644 index 00000000000..96b85e2c2c0 --- /dev/null +++ b/arch/arm/mach-ep93xx/include/mach/entry-macro.S @@ -0,0 +1,59 @@ +/* + * arch/arm/mach-ep93xx/include/mach/entry-macro.S + * IRQ demultiplexing for EP93xx + * + * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ +#include <mach/ep93xx-regs.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 \base, =(EP93XX_AHB_VIRT_BASE) + orr \base, \base, #0x000b0000 + mov \irqnr, #0 + ldr \irqstat, [\base] @ lower 32 interrupts + cmp \irqstat, #0 + bne 1001f + + eor \base, \base, #0x00070000 + ldr \irqstat, [\base] @ upper 32 interrupts + cmp \irqstat, #0 + beq 1002f + mov \irqnr, #0x20 + +1001: + movs \tmp, \irqstat, lsl #16 + movne \irqstat, \tmp + addeq \irqnr, \irqnr, #16 + + movs \tmp, \irqstat, lsl #8 + movne \irqstat, \tmp + addeq \irqnr, \irqnr, #8 + + movs \tmp, \irqstat, lsl #4 + movne \irqstat, \tmp + addeq \irqnr, \irqnr, #4 + + movs \tmp, \irqstat, lsl #2 + movne \irqstat, \tmp + addeq \irqnr, \irqnr, #2 + + movs \tmp, \irqstat, lsl #1 + addeq \irqnr, \irqnr, #1 + orrs \base, \base, #1 + +1002: + .endm |