From ebaf6b26bc12bd470188f3149a75397f112ab09d Mon Sep 17 00:00:00 2001 From: Frank Li 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 Signed-off-by: Frank Li --- 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(); } -- 2.39.2