Allow booting omap4 with multi-omap configuration. Tested only on omap2 and omap3, please somebody test on omap4 and ack.
Signed-off-by: Tony Lindgren <[email protected]> --- arch/arm/mach-omap2/include/mach/entry-macro.S | 36 +++++++++++++++++++----- 1 files changed, 29 insertions(+), 7 deletions(-) diff --git a/arch/arm/mach-omap2/include/mach/entry-macro.S b/arch/arm/mach-omap2/include/mach/entry-macro.S index fe3c9ad..ff25c7e 100644 --- a/arch/arm/mach-omap2/include/mach/entry-macro.S +++ b/arch/arm/mach-omap2/include/mach/entry-macro.S @@ -48,14 +48,18 @@ omap_irq_base: .word 0 ldr \base, =omap_irq_base @ irq base address ldr \base, [\base, #0] @ irq base value cmp \base, #0 @ already configured? - bne 9998f @ nothing to do + bne 9997f @ nothing to do mrc p15, 0, \tmp, c0, c0, 0 @ get processor revision and \tmp, \tmp, #0x000f0000 @ only check architecture cmp \tmp, #0x00060000 @ is v6? beq 2400f @ found v6 so it's omap24xx - cmp \tmp, #0x000f0000 @ is cortex? - beq 3400f @ found v7 so it's omap34xx + 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] @@ -64,23 +68,41 @@ omap_irq_base: .word 0 ldr \tmp, =omap_irq_base str \base, [\tmp, #0] b 9b -9998: +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 */ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + tst \base, #0x100 @ gic address? + bne 4401f @ found gic + + /* Handle omap2 and omap3 */ ldr \irqnr, [\base, #0x98] /* IRQ pending reg 1 */ cmp \irqnr, #0x0 - bne 9999f + bne 9998f ldr \irqnr, [\base, #0xb8] /* IRQ pending reg 2 */ cmp \irqnr, #0x0 - bne 9999f + bne 9998f ldr \irqnr, [\base, #0xd8] /* IRQ pending reg 3 */ cmp \irqnr, #0x0 -9999: +9998: ldrne \irqnr, [\base, #INTCPS_SIR_IRQ_OFFSET] and \irqnr, \irqnr, #ACTIVEIRQ_MASK /* Clear spurious bits */ + b 9999f + /* Handle omap4 */ +4401: ldr \irqstat, [\base, #GIC_CPU_INTACK] + ldr \tmp, =1021 + bic \irqnr, \irqstat, #0x1c00 + cmp \irqnr, #29 + cmpcc \irqnr, \irqnr + cmpne \irqnr, \tmp + cmpcs \irqnr, \irqnr +9999: .endm -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
