diff options
Diffstat (limited to 'include/asm-arm/arch-ixp4xx/entry-macro.S')
| -rw-r--r-- | include/asm-arm/arch-ixp4xx/entry-macro.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp4xx/entry-macro.S b/include/asm-arm/arch-ixp4xx/entry-macro.S new file mode 100644 index 000000000000..455da64832de --- /dev/null +++ b/include/asm-arm/arch-ixp4xx/entry-macro.S @@ -0,0 +1,39 @@ +/* + * include/asm-arm/arch-ixp4xx/entry-macro.S + * + * Low-level IRQ helper macros for IXP4xx-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. + */ + + .macro disable_fiq + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + ldr \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP_OFFSET) + ldr \irqstat, [\irqstat] @ get interrupts + cmp \irqstat, #0 + beq 1001f + clz \irqnr, \irqstat + mov \base, #31 + subs \irqnr, \base, \irqnr + +1001: + /* + * IXP465 has an upper IRQ status register + */ +#if defined(CONFIG_CPU_IXP46X) + bne 1002f + ldr \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP2_OFFSET) + ldr \irqstat, [\irqstat] @ get upper interrupts + mov \irqnr, #63 + clz \irqstat, \irqstat + cmp \irqstat, #32 + subne \irqnr, \irqnr, \irqstat +1002: +#endif + .endm + + |