diff options
Diffstat (limited to 'include/asm-arm/arch-sa1100/entry-macro.S')
| -rw-r--r-- | include/asm-arm/arch-sa1100/entry-macro.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-arm/arch-sa1100/entry-macro.S b/include/asm-arm/arch-sa1100/entry-macro.S new file mode 100644 index 000000000000..51fb50ce1169 --- /dev/null +++ b/include/asm-arm/arch-sa1100/entry-macro.S | |||
| @@ -0,0 +1,41 @@ | |||
| 1 | /* | ||
| 2 | * include/asm-arm/arch-sa1100/entry-macro.S | ||
| 3 | * | ||
| 4 | * Low-level IRQ helper macros for SA1100-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 | |||
| 11 | .macro disable_fiq | ||
| 12 | .endm | ||
| 13 | |||
| 14 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | ||
| 15 | mov r4, #0xfa000000 @ ICIP = 0xfa050000 | ||
| 16 | add r4, r4, #0x00050000 | ||
| 17 | ldr \irqstat, [r4] @ get irqs | ||
| 18 | ldr \irqnr, [r4, #4] @ ICMR = 0xfa050004 | ||
| 19 | ands \irqstat, \irqstat, \irqnr | ||
| 20 | mov \irqnr, #0 | ||
| 21 | beq 1001f | ||
| 22 | tst \irqstat, #0xff | ||
| 23 | moveq \irqstat, \irqstat, lsr #8 | ||
| 24 | addeq \irqnr, \irqnr, #8 | ||
| 25 | tsteq \irqstat, #0xff | ||
| 26 | moveq \irqstat, \irqstat, lsr #8 | ||
| 27 | addeq \irqnr, \irqnr, #8 | ||
| 28 | tsteq \irqstat, #0xff | ||
| 29 | moveq \irqstat, \irqstat, lsr #8 | ||
| 30 | addeq \irqnr, \irqnr, #8 | ||
| 31 | tst \irqstat, #0x0f | ||
| 32 | moveq \irqstat, \irqstat, lsr #4 | ||
| 33 | addeq \irqnr, \irqnr, #4 | ||
| 34 | tst \irqstat, #0x03 | ||
| 35 | moveq \irqstat, \irqstat, lsr #2 | ||
| 36 | addeq \irqnr, \irqnr, #2 | ||
| 37 | tst \irqstat, #0x01 | ||
| 38 | addeqs \irqnr, \irqnr, #1 | ||
| 39 | 1001: | ||
| 40 | .endm | ||
| 41 | |||