Add definitions for 440EPx/GRx SDRAM controller to ppc440.h

This patch adds the Denali SDRAM controller definitions to "ppc440.h".
It also fixes two typos in the definitions, so the board-specific
"sdram.h" files containing these definitions are also fixed to avoid
compiler warnings.

Signed-off-by: Larry Johnson <lrj@acm.org>

board/amcc/sequoia/sdram.h

@@ -395,8 +395,8 @@
 #define DDR0_26_TRAS_MAX_ENCODE(n)          ((((unsigned long)(n))&0xFFFF)<<16)
 #define DDR0_26_TRAS_MAX_DECODE(n)          ((((unsigned long)(n))>>16)&0xFFFF)
 #define DDR0_26_TREF_MASK                 0x00003FFF
-#define DDR0_26_TREF_ENCODE(n)              ((((unsigned long)(n))&0x3FF)<<0)
-#define DDR0_26_TREF_DECODE(n)              ((((unsigned long)(n))>>0)&0x3FF)
+#define DDR0_26_TREF_ENCODE(n)              ((((unsigned long)(n))&0x3FFF)<<0)
+#define DDR0_26_TREF_DECODE(n)              ((((unsigned long)(n))>>0)&0x3FFF)
 
 #define DDR0_27                         0x1B
 #define DDR0_27_EMRS_DATA_MASK            0x3FFF0000

board/lwmon5/sdram.h

@@ -395,8 +395,8 @@
 #define DDR0_26_TRAS_MAX_ENCODE(n)          ((((unsigned long)(n))&0xFFFF)<<16)
 #define DDR0_26_TRAS_MAX_DECODE(n)          ((((unsigned long)(n))>>16)&0xFFFF)
 #define DDR0_26_TREF_MASK                 0x00003FFF
-#define DDR0_26_TREF_ENCODE(n)              ((((unsigned long)(n))&0x3FF)<<0)
-#define DDR0_26_TREF_DECODE(n)              ((((unsigned long)(n))>>0)&0x3FF)
+#define DDR0_26_TREF_ENCODE(n)              ((((unsigned long)(n))&0x3FFF)<<0)
+#define DDR0_26_TREF_DECODE(n)              ((((unsigned long)(n))>>0)&0x3FFF)
 
 #define DDR0_27                         0x1B
 #define DDR0_27_EMRS_DATA_MASK            0x3FFF0000