| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * include/asm-arm/arch-iop3xx/entry-macro.S |
| 3 | * |
| 4 | * Low-level IRQ helper macros for IOP3xx-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 | #if defined(CONFIG_ARCH_IOP321) |
| 12 | .macro disable_fiq |
| 13 | .endm |
| 14 | |
| 15 | /* |
| 16 | * Note: only deal with normal interrupts, not FIQ |
| 17 | */ |
| 18 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp |
| 19 | mov \irqnr, #0 |
| 20 | mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC |
| 21 | cmp \irqstat, #0 |
| 22 | beq 1001f |
| 23 | clz \irqnr, \irqstat |
| 24 | mov \base, #31 |
| 25 | subs \irqnr,\base,\irqnr |
| 26 | add \irqnr,\irqnr,#IRQ_IOP321_DMA0_EOT |
| 27 | 1001: |
| 28 | .endm |
| 29 | |
| 30 | #elif defined(CONFIG_ARCH_IOP331) |
| 31 | .macro disable_fiq |
| 32 | .endm |
| 33 | |
| 34 | /* |
| 35 | * Note: only deal with normal interrupts, not FIQ |
| 36 | */ |
| 37 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp |
| 38 | mov \irqnr, #0 |
| 39 | mrc p6, 0, \irqstat, c4, c0, 0 @ Read IINTSRC0 |
| 40 | cmp \irqstat, #0 |
| 41 | bne 1002f |
| 42 | mrc p6, 0, \irqstat, c5, c0, 0 @ Read IINTSRC1 |
| 43 | cmp \irqstat, #0 |
| 44 | beq 1001f |
| 45 | clz \irqnr, \irqstat |
| 46 | rsbs \irqnr,\irqnr,#31 @ recommend by RMK |
| 47 | add \irqnr,\irqnr,#IRQ_IOP331_XINT8 |
| 48 | b 1001f |
| 49 | 1002: clz \irqnr, \irqstat |
| 50 | rsbs \irqnr,\irqnr,#31 @ recommend by RMK |
| 51 | add \irqnr,\irqnr,#IRQ_IOP331_DMA0_EOT |
| 52 | 1001: |
| 53 | .endm |
| 54 | |
| 55 | #endif |
| 56 | |