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Motion-PRO: Add setting of SDelay reg. to SDRAM controller configuration.

Per AN3221 (MPC5200B SDRAM Initialization and Configuration), the SDelay
register must be written a value of 0x00000004 as the first step of the
SDRAM contorller configuration.

Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
Bartlomiej Sieka 17 年之前
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共有 1 个文件被更改,包括 6 次插入0 次删除
  1. 6 0
      board/motionpro/motionpro.c

+ 6 - 0
board/motionpro/motionpro.c

@@ -138,6 +138,12 @@ long int initdram(int board_type)
 #ifndef CFG_RAMBOOT
 	ulong test1, test2;
 
+	/* According to AN3221 (MPC5200B SDRAM Initialization and
+	 * Configuration), the SDelay register must be written a value of
+	 * 0x00000004 as the first step of the SDRAM contorller configuration.
+	 */
+	*(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04;
+
 	/* configure SDRAM start/end for detection */
 	*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e; /* 2G at 0x0 */
 	*(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000; /* disabled */