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-ep93xx/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-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 |