powerpc/mpc85xx: Add workaround for erratum A006379

Erratum A006379 says CPCHDBCR0 bit field [10:14] has incorrect default
value after POR. The workaround is to set this field before enabling
CPC to 0x1e.

Erratum A006379 applies to
	T4240 rev 1.0
	B4860 rev 1.0, 2.0

Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
index c441bd2..1e5a43f 100644
--- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c
+++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
@@ -7,6 +7,7 @@
 #include <common.h>
 #include <command.h>
 #include <linux/compiler.h>
+#include <asm/fsl_errata.h>
 #include <asm/processor.h>
 #include "fsl_corenet_serdes.h"
 
@@ -245,6 +246,10 @@
 #ifdef CONFIG_SYS_FSL_ERRATUM_A006593
 	puts("Work-around for Erratum A006593 enabled\n");
 #endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006379
+	if (has_erratum_a006379())
+		puts("Work-around for Erratum A006379 enabled\n");
+#endif
 #ifdef CONFIG_SYS_FSL_ERRATUM_SEC_A003571
 	if (IS_SVR_REV(svr, 1, 0))
 		puts("Work-around for Erratum A003571 enabled\n");