diff options
Diffstat (limited to 'arch/arm/mach-sa1100/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-sa1100/include/mach/entry-macro.S | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/entry-macro.S b/arch/arm/mach-sa1100/include/mach/entry-macro.S new file mode 100644 index 000000000000..6aa13c46c5d3 --- /dev/null +++ b/arch/arm/mach-sa1100/include/mach/entry-macro.S | |||
| @@ -0,0 +1,47 @@ | |||
| 1 | /* | ||
| 2 | * arch/arm/mach-sa1100/include/mach/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_preamble, base, tmp | ||
| 15 | mov \base, #0xfa000000 @ ICIP = 0xfa050000 | ||
| 16 | add \base, \base, #0x00050000 | ||
| 17 | .endm | ||
| 18 | |||
| 19 | .macro arch_ret_to_user, tmp1, tmp2 | ||
| 20 | .endm | ||
| 21 | |||
| 22 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | ||
| 23 | ldr \irqstat, [\base] @ get irqs | ||
| 24 | ldr \irqnr, [\base, #4] @ ICMR = 0xfa050004 | ||
| 25 | ands \irqstat, \irqstat, \irqnr | ||
| 26 | mov \irqnr, #0 | ||
| 27 | beq 1001f | ||
| 28 | tst \irqstat, #0xff | ||
| 29 | moveq \irqstat, \irqstat, lsr #8 | ||
| 30 | addeq \irqnr, \irqnr, #8 | ||
| 31 | tsteq \irqstat, #0xff | ||
| 32 | moveq \irqstat, \irqstat, lsr #8 | ||
| 33 | addeq \irqnr, \irqnr, #8 | ||
| 34 | tsteq \irqstat, #0xff | ||
| 35 | moveq \irqstat, \irqstat, lsr #8 | ||
| 36 | addeq \irqnr, \irqnr, #8 | ||
| 37 | tst \irqstat, #0x0f | ||
| 38 | moveq \irqstat, \irqstat, lsr #4 | ||
| 39 | addeq \irqnr, \irqnr, #4 | ||
| 40 | tst \irqstat, #0x03 | ||
| 41 | moveq \irqstat, \irqstat, lsr #2 | ||
| 42 | addeq \irqnr, \irqnr, #2 | ||
| 43 | tst \irqstat, #0x01 | ||
| 44 | addeqs \irqnr, \irqnr, #1 | ||
| 45 | 1001: | ||
| 46 | .endm | ||
| 47 | |||