86xx: remove the unused ddr_enable_ecc in the board file

The DDR controller of 86xx processors have the ECC data init
feature, and the new DDR code is using the feature, we don't
need the way with DMA to init memory again.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Kumar Gala <kumar.gala@freescale.com>

board/freescale/mpc8610hpcd/mpc8610hpcd.c

@@ -36,10 +36,6 @@
 
 #include "../common/pixis.h"
 
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-extern void ddr_enable_ecc(unsigned int dram_size);
-#endif
-
 void sdram_init(void);
 long int fixed_sdram(void);
 void mpc8610hpcd_diu_init(void);
@@ -134,13 +130,6 @@ initdram(int board_type)
 	return dram_size;
 #endif
 
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-	/*
-	 * Initialize and enable DDR ECC.
-	 */
-	ddr_enable_ecc(dram_size);
-#endif
-
 	puts(" DDR: ");
 	return dram_size;
 }

board/freescale/mpc8641hpcn/mpc8641hpcn.c

@@ -33,10 +33,6 @@
 
 #include "../common/pixis.h"
 
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-extern void ddr_enable_ecc(unsigned int dram_size);
-#endif
-
 long int fixed_sdram(void);
 
 int board_early_init_f(void)
@@ -70,13 +66,6 @@ initdram(int board_type)
 	return dram_size;
 #endif
 
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-	/*
-	 * Initialize and enable DDR ECC.
-	 */
-	ddr_enable_ecc(dram_size);
-#endif
-
 	puts("    DDR: ");
 	return dram_size;
 }

board/sbc8641d/sbc8641d.c

@@ -38,10 +38,6 @@
 #include <libfdt.h>
 #include <fdt_support.h>
 
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-extern void ddr_enable_ecc (unsigned int dram_size);
-#endif
-
 long int fixed_sdram (void);
 
 int board_early_init_f (void)
@@ -71,13 +67,6 @@ phys_size_t initdram (int board_type)
 	return dram_size;
 #endif
 
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-	/*
-	 * Initialize and enable DDR ECC.
-	 */
-	ddr_enable_ecc (dram_size);
-#endif
-
 	puts ("    DDR: ");
 	return dram_size;
 }