From ebaf6b26bc12bd470188f3149a75397f112ab09d Mon Sep 17 00:00:00 2001
From: Frank Li <Frank.Li@freescale.com>
Date: Thu, 14 Nov 2013 00:58:46 +0800
Subject: [PATCH] imx6: fix random hang when download by usb
ROM did not invalidate L1 cache when download by usb
Need invalidate L1 cache before enable cache
Signed-off-by: Huang yongcai <b20788@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
---
arch/arm/cpu/armv7/mx6/soc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index a3902962b5..335706adf6 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -150,6 +150,8 @@ int arch_cpu_init(void)
#ifndef CONFIG_SYS_DCACHE_OFF
void enable_caches(void)
{
+ /* Avoid random hang when download by usb */
+ invalidate_dcache_all();
/* Enable D-cache. I-cache is already enabled in start.S */
dcache_enable();
}
--
2.39.5