diff options
Diffstat (limited to 'include/asm-arm/arch-orion/entry-macro.S')
-rw-r--r-- | include/asm-arm/arch-orion/entry-macro.S | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-arm/arch-orion/entry-macro.S b/include/asm-arm/arch-orion/entry-macro.S new file mode 100644 index 000000000000..b76075a7e44b --- /dev/null +++ b/include/asm-arm/arch-orion/entry-macro.S | |||
@@ -0,0 +1,31 @@ | |||
1 | /* | ||
2 | * include/asm-arm/arch-orion/entry-macro.S | ||
3 | * | ||
4 | * Low-level IRQ helper macros for Orion 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 | #include <asm/arch/orion.h> | ||
12 | |||
13 | .macro disable_fiq | ||
14 | .endm | ||
15 | |||
16 | .macro arch_ret_to_user, tmp1, tmp2 | ||
17 | .endm | ||
18 | |||
19 | .macro get_irqnr_preamble, base, tmp | ||
20 | ldr \base, =MAIN_IRQ_CAUSE | ||
21 | .endm | ||
22 | |||
23 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | ||
24 | ldr \irqstat, [\base, #0] @ main cause | ||
25 | ldr \tmp, [\base, #(MAIN_IRQ_MASK - MAIN_IRQ_CAUSE)] @ main mask | ||
26 | mov \irqnr, #0 @ default irqnr | ||
27 | @ find cause bits that are unmasked | ||
28 | ands \irqstat, \irqstat, \tmp @ clear Z flag if any | ||
29 | clzne \irqnr, \irqstat @ calc irqnr | ||
30 | rsbne \irqnr, \irqnr, #31 | ||
31 | .endm | ||