Currently, when booting MPC52xx based platforms, we get:
mpc52xx_irqhost_map: invalid irq: virq=16, l1=0, l2=3
irq: irq-16==>hwirq-0x3 mapping failed: -22
[WARNing skipped]
The warning is wrong since the mapping itself is valid. However, there is no
support for that type of IRQ currently. Print a proper warning and bind the irq
to a no_irq chip.
Signed-off-by: Wolfram Sang <[email protected]>
Cc: John Bonesio <[email protected]>
Cc: Anatolij Gustschin <[email protected]>
Cc: Grant Likely <[email protected]>
---
arch/powerpc/platforms/52xx/mpc52xx_pic.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index 8520b58..703ad42 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -372,6 +372,11 @@ static int mpc52xx_irqhost_map(struct irq_domain *h,
unsigned int virq,
case MPC52xx_IRQ_L1_MAIN: irqchip = &mpc52xx_main_irqchip; break;
case MPC52xx_IRQ_L1_PERP: irqchip = &mpc52xx_periph_irqchip; break;
case MPC52xx_IRQ_L1_SDMA: irqchip = &mpc52xx_sdma_irqchip; break;
+ case MPC52xx_IRQ_L1_CRIT:
+ pr_warn("%s: Critical IRQ #%d is unsupported! Nopping it.\n",
+ __func__, l2irq);
+ irq_set_chip(virq, &no_irq_chip);
+ return 0;
default:
pr_err("%s: invalid irq: virq=%i, l1=%i, l2=%i\n",
__func__, virq, l1irq, l2irq);
--
1.7.10.4
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