From: hhb <hhb@rock-chips.com>
Date: Tue, 27 Mar 2012 07:37:05 +0000 (+0800)
Subject: rk30: fix bug fiq debugger doesn't work when irq disable
X-Git-Tag: firefly_0821_release~9560^2~40
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9cadf3891e4a0d3fa004dd475ee1e55127cbeeb0;p=firefly-linux-kernel-4.4.55.git

rk30: fix bug fiq debugger doesn't work when irq disable
---

diff --git a/arch/arm/mach-rk30/fiq.c b/arch/arm/mach-rk30/fiq.c
index 2c8d176f9781..4883d4b7a6bb 100644
--- a/arch/arm/mach-rk30/fiq.c
+++ b/arch/arm/mach-rk30/fiq.c
@@ -101,8 +101,9 @@ void rk30_fiq_init(void)
 		writel_relaxed(0xffffffff, RK30_GICD_BASE + GIC_DIST_SECURITY + (i<<2));
 	}
 	dsb();
-
 	writel_relaxed(0x3, RK30_GICD_BASE + GIC_DIST_CTRL);
-	writel_relaxed(0xf, RK30_GICC_BASE + GIC_CPU_CTRL);
+	writel_relaxed(0x0f, RK30_GICC_BASE + GIC_CPU_CTRL);
+	//set the uart 2(the debug port) priority a little higher than other interrupts
+	writel_relaxed(0xa0a0a090, RK30_GICD_BASE + GIC_DIST_PRI + (IRQ_UART2/4)*4);
 	dsb();
 }