diff options
Diffstat (limited to 'arch/arm/mach-omap2/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/entry-macro.S | 44 |
1 files changed, 15 insertions, 29 deletions
diff --git a/arch/arm/mach-omap2/include/mach/entry-macro.S b/arch/arm/mach-omap2/include/mach/entry-macro.S index d54c4f89a8bd..befa321c4c13 100644 --- a/arch/arm/mach-omap2/include/mach/entry-macro.S +++ b/arch/arm/mach-omap2/include/mach/entry-macro.S @@ -38,41 +38,27 @@ */ #ifdef MULTI_OMAP2 + +/* + * We use __glue to avoid errors with multiple definitions of + * .globl omap_irq_base as it's included from entry-armv.S but not + * from entry-common.S. + */ +#ifdef __glue .pushsection .data -omap_irq_base: .word 0 + .globl omap_irq_base +omap_irq_base: + .word 0 .popsection +#endif - /* Configure the interrupt base on the first interrupt */ + /* + * Configure the interrupt base on the first interrupt. + * See also omap_irq_base_init for setting omap_irq_base. + */ .macro get_irqnr_preamble, base, tmp -9: ldr \base, =omap_irq_base @ irq base address ldr \base, [\base, #0] @ irq base value - cmp \base, #0 @ already configured? - bne 9997f @ nothing to do - - mrc p15, 0, \tmp, c0, c0, 0 @ get processor revision - and \tmp, \tmp, #0x000f0000 @ only check architecture - cmp \tmp, #0x00070000 @ is v6? - beq 2400f @ found v6 so it's omap24xx - mrc p15, 0, \tmp, c0, c0, 0 @ get processor revision - and \tmp, \tmp, #0x000000f0 @ check cortex 8 or 9 - cmp \tmp, #0x00000080 @ cortex A-8? - beq 3400f @ found A-8 so it's omap34xx - cmp \tmp, #0x00000090 @ cortex A-9? - beq 4400f @ found A-9 so it's omap44xx -2400: ldr \base, =OMAP2_IRQ_BASE - ldr \tmp, =omap_irq_base - str \base, [\tmp, #0] - b 9b -3400: ldr \base, =OMAP3_IRQ_BASE - ldr \tmp, =omap_irq_base - str \base, [\tmp, #0] - b 9b -4400: ldr \base, =OMAP4_IRQ_BASE - ldr \tmp, =omap_irq_base - str \base, [\tmp, #0] - b 9b -9997: .endm /* Check the pending interrupts. Note that base already set */ |