powerpc: Add T4160QDS

T4160QDS shares the same platform as T4240QDS. T4160 is a low power
version of T4240, with eight e6500 cores, two DDR3 controllers, and
slightly different SerDes protocols.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

boards.cfg

@@ -896,6 +896,9 @@ stxssa_4M                    powerpc     mpc85xx     stxssa              stx
 T4240QDS                     powerpc     mpc85xx     t4qds               freescale      -           T4240QDS:PPC_T4240
 T4240QDS_SDCARD              powerpc     mpc85xx     t4qds               freescale	-           T4240QDS:PPC_T4240,RAMBOOT_PBL,SDCARD,SYS_TEXT_BASE=0xFFF80000
 T4240QDS_SPIFLASH            powerpc     mpc85xx     t4qds               freescale	-           T4240QDS:PPC_T4240,RAMBOOT_PBL,SPIFLASH,SYS_TEXT_BASE=0xFFF80000
+T4160QDS                     powerpc     mpc85xx     t4qds               freescale      -           T4240QDS:PPC_T4160
+T4160QDS_SDCARD              powerpc     mpc85xx     t4qds               freescale	-           T4240QDS:PPC_T4160,RAMBOOT_PBL,SDCARD,SYS_TEXT_BASE=0xFFF80000
+T4160QDS_SPIFLASH            powerpc     mpc85xx     t4qds               freescale	-           T4240QDS:PPC_T4160,RAMBOOT_PBL,SPIFLASH,SYS_TEXT_BASE=0xFFF80000
 B4860QDS                     powerpc     mpc85xx     b4860qds            freescale      -           B4860QDS:PPC_B4860
 B4860QDS_NAND		     powerpc     mpc85xx     b4860qds            freescale      -           B4860QDS:PPC_B4860,RAMBOOT_PBL,NAND,SYS_TEXT_BASE=0xFFF80000
 B4860QDS_SPIFLASH            powerpc     mpc85xx     b4860qds            freescale	-           B4860QDS:PPC_B4860,RAMBOOT_PBL,SPIFLASH,SYS_TEXT_BASE=0xFFF80000

include/configs/t4qds.h

@@ -791,8 +791,21 @@ unsigned long get_board_ddr_clk(void);
 
 #define __USB_PHY_TYPE	utmi
 
+/*
+ * T4240 has 3 DDR controllers. Default to 3way_4KB interleaving. It can be
+ * 3way_1KB, 3way_4KB, 3way_8KB. T4160 has 2 DDR controllers. Default to
+ * cacheline interleaving. It can be cacheline, page, bank, superbank.
+ * See doc/README.fsl-ddr for details.
+ */
+#ifdef CONFIG_PPC_T4240
+#define CTRL_INTLV_PREFERED 3way_4KB
+#else
+#define CTRL_INTLV_PREFERED cacheline
+#endif
+
 #define	CONFIG_EXTRA_ENV_SETTINGS				\
-	"hwconfig=fsl_ddr:ctlr_intlv=3way_4KB,"		\
+	"hwconfig=fsl_ddr:"					\
+	"ctlr_intlv=" __stringify(CTRL_INTLV_PREFERED) ","	\
 	"bank_intlv=auto;"					\
 	"usb1:dr_mode=host,phy_type=" __stringify(__USB_PHY_TYPE) "\0"\
 	"netdev=eth0\0"						\