diff options
Diffstat (limited to 'include/asm-arm/arch-aaec2000/entry-macro.S')
| -rw-r--r-- | include/asm-arm/arch-aaec2000/entry-macro.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/asm-arm/arch-aaec2000/entry-macro.S b/include/asm-arm/arch-aaec2000/entry-macro.S new file mode 100644 index 0000000..df31313 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/entry-macro.S @@ -0,0 +1,33 @@ +/* + * linux/include/asm-arm/arch-aaec2000/entry-macro.S + * + * Low-level IRQ helper for aaec-2000 based platforms + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + + .macro disable_fiq + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + mov r4, #0xf8000000 + add r4, r4, #0x00000500 + mov \base, r4 + ldr \irqstat, [\base, #0] + cmp \irqstat, #0 + bne 1001f + ldr \irqnr, =NR_IRQS+1 + b 1003f +1001: mov \irqnr, #0 +1002: ands \tmp, \irqstat, #1 + mov \irqstat, \irqstat, LSR #1 + add \irqnr, \irqnr, #1 + beq 1002b + sub \irqnr, \irqnr, #1 +1003: + .endm |