powerpc/8xxx: Enabled address hashing for 85xx

For 85xx silicon which supports address hashing, it can be activated by
hwconfig.

Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h
index 431327e..d576eb8 100644
--- a/arch/powerpc/include/asm/fsl_ddr_sdram.h
+++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h
@@ -119,6 +119,7 @@
 	unsigned int ddr_sr_cntr;
 	unsigned int ddr_sdram_rcw_1;
 	unsigned int ddr_sdram_rcw_2;
+	unsigned int ddr_eor;
 } fsl_ddr_cfg_regs_t;
 
 typedef struct memctl_options_partial_s {
@@ -156,6 +157,7 @@
 	unsigned int memctl_interleaving;
 	unsigned int memctl_interleaving_mode;
 	unsigned int ba_intlv_ctl;
+	unsigned int addr_hash;
 
 	/* Operational mode parameters */
 	unsigned int ECC_mode;	 /* Use ECC? */