diff options
Diffstat (limited to 'include/asm-arm/arch-iop3xx/entry-macro.S')
| -rw-r--r-- | include/asm-arm/arch-iop3xx/entry-macro.S | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/asm-arm/arch-iop3xx/entry-macro.S b/include/asm-arm/arch-iop3xx/entry-macro.S new file mode 100644 index 00000000000..e2ce7f5467c --- /dev/null +++ b/include/asm-arm/arch-iop3xx/entry-macro.S @@ -0,0 +1,56 @@ +/* + * include/asm-arm/arch-iop3xx/entry-macro.S + * + * Low-level IRQ helper macros for IOP3xx-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. + */ + +#if defined(CONFIG_ARCH_IOP321) + .macro disable_fiq + .endm + + /* + * Note: only deal with normal interrupts, not FIQ + */ + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + mov \irqnr, #0 + mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC + cmp \irqstat, #0 + beq 1001f + clz \irqnr, \irqstat + mov \base, #31 + subs \irqnr,\base,\irqnr + add \irqnr,\irqnr,#IRQ_IOP321_DMA0_EOT +1001: + .endm + +#elif defined(CONFIG_ARCH_IOP331) + .macro disable_fiq + .endm + + /* + * Note: only deal with normal interrupts, not FIQ + */ + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + mov \irqnr, #0 + mrc p6, 0, \irqstat, c4, c0, 0 @ Read IINTSRC0 + cmp \irqstat, #0 + bne 1002f + mrc p6, 0, \irqstat, c5, c0, 0 @ Read IINTSRC1 + cmp \irqstat, #0 + beq 1001f + clz \irqnr, \irqstat + rsbs \irqnr,\irqnr,#31 @ recommend by RMK + add \irqnr,\irqnr,#IRQ_IOP331_XINT8 + b 1001f +1002: clz \irqnr, \irqstat + rsbs \irqnr,\irqnr,#31 @ recommend by RMK + add \irqnr,\irqnr,#IRQ_IOP331_DMA0_EOT +1001: + .endm + +#endif + |