diff options
Diffstat (limited to 'include/asm-arm/arch-clps711x/entry-macro.S')
| -rw-r--r-- | include/asm-arm/arch-clps711x/entry-macro.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/include/asm-arm/arch-clps711x/entry-macro.S b/include/asm-arm/arch-clps711x/entry-macro.S new file mode 100644 index 000000000000..b31079a1d4a9 --- /dev/null +++ b/include/asm-arm/arch-clps711x/entry-macro.S @@ -0,0 +1,51 @@ +/* + * include/asm-arm/arch-CLPS711x/entry-macro.S + * + * Low-level IRQ helper macros for CLPS711X-based platforms + * + * 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. + */ +#include <asm/hardware/clps7111.h> + + .macro disable_fiq + .endm + +#if (INTSR2 - INTSR1) != (INTMR2 - INTMR1) +#error INTSR stride != INTMR stride +#endif + + .macro get_irqnr_and_base, irqnr, stat, base, mask + mov \base, #CLPS7111_BASE + ldr \stat, [\base, #INTSR1] + ldr \mask, [\base, #INTMR1] + mov \irqnr, #4 + mov \mask, \mask, lsl #16 + and \stat, \stat, \mask, lsr #16 + movs \stat, \stat, lsr #4 + bne 1001f + + add \base, \base, #INTSR2 - INTSR1 + ldr \stat, [\base, #INTSR1] + ldr \mask, [\base, #INTMR1] + mov \irqnr, #16 + mov \mask, \mask, lsl #16 + and \stat, \stat, \mask, lsr #16 + +1001: tst \stat, #255 + addeq \irqnr, \irqnr, #8 + moveq \stat, \stat, lsr #8 + 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 + + |