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imx6: fix random hang when download by usb

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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>
This commit is contained in:
Frank Li 2013-11-14 00:58:46 +08:00 • committed by Stefano Babic
parent 5b5a82eb70
commit ebaf6b26bc
1 changed files with 2 additions and 0 deletions
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2
arch/arm/cpu/armv7/mx6/soc.c
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@ -150,6 +150,8 @@ int arch_cpu_init(void)
#ifndef CONFIG_SYS_DCACHE_OFF #ifndef CONFIG_SYS_DCACHE_OFF
void enable_caches(void) 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 */ /* Enable D-cache. I-cache is already enabled in start.S */
dcache_enable(); dcache_enable();
} }