[U-Boot] [PATCH] mx5: Enable dcache

Benoît Thébaudeau benoit.thebaudeau at advansee.com
Tue Aug 14 15:17:52 CEST 2012


Now that the main i.MX features work fine with dcache enabled, enabled it by
default if CONFIG_SYS_DCACHE_OFF is not defined.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau at advansee.com>
Cc: Stefano Babic <sbabic at denx.de>
---
 .../arch/arm/cpu/armv7/mx5/soc.c                   |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git u-boot-4d3c95f.orig/arch/arm/cpu/armv7/mx5/soc.c u-boot-4d3c95f/arch/arm/cpu/armv7/mx5/soc.c
index 3f5a4f7..98203ba 100644
--- u-boot-4d3c95f.orig/arch/arm/cpu/armv7/mx5/soc.c
+++ u-boot-4d3c95f/arch/arm/cpu/armv7/mx5/soc.c
@@ -71,6 +71,14 @@ u32 get_cpu_rev(void)
 	return system_rev;
 }
 
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
+#endif
+
 #if defined(CONFIG_FEC_MXC)
 void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
 {


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