| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * include/asm-arm/arch-l7200/entry-macro.S |
| 3 | * |
| 4 | * Low-level IRQ helper macros for L7200-based platforms |
| 5 | * |
| 6 | * This file is licensed under the terms of the GNU General Public |
| 7 | * License version 2. This program is licensed "as is" without any |
| 8 | * warranty of any kind, whether express or implied. |
| 9 | */ |
| 10 | #include <asm/hardware.h> |
| 11 | |
| 12 | .equ irq_base_addr, IO_BASE_2 |
| 13 | |
| 14 | .macro disable_fiq |
| 15 | .endm |
| 16 | |
| 17 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp |
| 18 | mov \irqstat, #irq_base_addr @ Virt addr IRQ regs |
| 19 | add \irqstat, \irqstat, #0x00001000 @ Status reg |
| 20 | ldr \irqstat, [\irqstat, #0] @ get interrupts |
| 21 | mov \irqnr, #0 |
| 22 | 1001: tst \irqstat, #1 |
| 23 | addeq \irqnr, \irqnr, #1 |
| 24 | moveq \irqstat, \irqstat, lsr #1 |
| 25 | tsteq \irqnr, #32 |
| 26 | beq 1001b |
| 27 | teq \irqnr, #32 |
| 28 | .endm |
| 29 | |