platform: plic: Fix plic_set_priority()

At present plic_set_priority() ignores the 'source' and the priority
register to be programmed is constant. Fix it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/platform/common/irqchip/plic.c b/platform/common/irqchip/plic.c
index 3a0c93f..7509f05 100644 (file)
--- a/platform/common/irqchip/plic.c
+++ b/platform/common/irqchip/plic.c
@@ -27,7 +27,10 @@ static volatile void *plic_base;
 
 static void plic_set_priority(u32 source, u32 val)
 {
-       writel(val, plic_base);
+       volatile void *plic_priority = plic_base +
+                               PLIC_PRIORITY_BASE +
+                               4 * source;
+       writel(val, plic_priority);
 }
 
 static void plic_set_thresh(u32 cntxid, u32 val)