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authorArnd Bergmann <arnd@arndb.de>2015-11-25 23:47:38 +0100
committerArnd Bergmann <arnd@arndb.de>2015-11-25 23:47:38 +0100
commitd3de94ba4e58e8043d500f7335797d6a2ac93248 (patch)
tree8382a170965eec00ebfe62e7b42dfdea9ca44f54 /drivers/irqchip/irq-gic-common.c
parentfabc2c9c1ff5376489e83e142f1ab236609435b1 (diff)
parent1ec218373b8ebda821aec00bb156a9c94fad9cd4 (diff)
Merge tag 'v4.4-rc2' into fixes
Linux 4.4-rc2 is backmerged from the keystone fixes.
Diffstat (limited to 'drivers/irqchip/irq-gic-common.c')
-rw-r--r--drivers/irqchip/irq-gic-common.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/irqchip/irq-gic-common.c b/drivers/irqchip/irq-gic-common.c
index 44a077f3a4a2..f174ce0ca361 100644
--- a/drivers/irqchip/irq-gic-common.c
+++ b/drivers/irqchip/irq-gic-common.c
@@ -84,12 +84,15 @@ void __init gic_dist_config(void __iomem *base, int gic_irqs,
writel_relaxed(GICD_INT_DEF_PRI_X4, base + GIC_DIST_PRI + i);
/*
- * Disable all interrupts. Leave the PPI and SGIs alone
- * as they are enabled by redistributor registers.
+ * Deactivate and disable all SPIs. Leave the PPI and SGIs
+ * alone as they are in the redistributor registers on GICv3.
*/
- for (i = 32; i < gic_irqs; i += 32)
+ for (i = 32; i < gic_irqs; i += 32) {
writel_relaxed(GICD_INT_EN_CLR_X32,
- base + GIC_DIST_ENABLE_CLEAR + i / 8);
+ base + GIC_DIST_ACTIVE_CLEAR + i / 8);
+ writel_relaxed(GICD_INT_EN_CLR_X32,
+ base + GIC_DIST_ENABLE_CLEAR + i / 8);
+ }
if (sync_access)
sync_access();
@@ -102,7 +105,9 @@ void gic_cpu_config(void __iomem *base, void (*sync_access)(void))
/*
* Deal with the banked PPI and SGI interrupts - disable all
* PPI interrupts, ensure all SGI interrupts are enabled.
+ * Make sure everything is deactivated.
*/
+ writel_relaxed(GICD_INT_EN_CLR_X32, base + GIC_DIST_ACTIVE_CLEAR);
writel_relaxed(GICD_INT_EN_CLR_PPI, base + GIC_DIST_ENABLE_CLEAR);
writel_relaxed(GICD_INT_EN_SET_SGI, base + GIC_DIST_ENABLE_SET);