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| /*
| * arch/arm/mach-ebsa110/include/mach/entry-macro.S
| *
| * Low-level IRQ helper macros for ebsa110 platform.
| *
| * 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.
| */
|
|
|
| #define IRQ_STAT 0xff000000 /* read */
|
| .macro get_irqnr_preamble, base, tmp
| mov \base, #IRQ_STAT
| .endm
|
| .macro get_irqnr_and_base, irqnr, stat, base, tmp
| ldrb \stat, [\base] @ get interrupts
| mov \irqnr, #0
| tst \stat, #15
| addeq \irqnr, \irqnr, #4
| moveq \stat, \stat, lsr #4
| tst \stat, #3
| addeq \irqnr, \irqnr, #2
| moveq \stat, \stat, lsr #2
| tst \stat, #1
| addeq \irqnr, \irqnr, #1
| moveq \stat, \stat, lsr #1
| tst \stat, #1 @ bit 0 should be set
| .endm
|
|
