From: Dave Liu <r63238@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [PATCH] mpc83xx: Correct the burst length for DDR2 with 32 bits
Date: Wed, 01 Aug 2007 14:01:26 +0800 [thread overview]
Message-ID: <1185948086.3774.4.camel@localhost.localdomain> (raw)
The burst length should be 4 for DDR2 with 32 bits bus
Signed-off-by: Dave Liu<daveliu@freescale.com>
---
cpu/mpc83xx/spd_sdram.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/cpu/mpc83xx/spd_sdram.c b/cpu/mpc83xx/spd_sdram.c
index 647813f..5e89add 100644
--- a/cpu/mpc83xx/spd_sdram.c
+++ b/cpu/mpc83xx/spd_sdram.c
@@ -730,8 +730,12 @@ long int spd_sdram()
sdram_cfg |= 0x10000000;
/* The DIMM is 32bit width */
- if (spd.dataw_lsb == 0x20)
- sdram_cfg |= 0x000C0000;
+ if (spd.dataw_lsb == 0x20) {
+ if (spd.mem_type == SPD_MEMTYPE_DDR)
+ sdram_cfg |= 0x000C0000;
+ if (spd.mem_type == SPD_MEMTYPE_DDR2)
+ sdram_cfg |= 0x00080000;
+ }
ddrc_ecc_enable = 0;
--
1.5.3.rc2.29.gc4640f
next reply other threads:[~2007-08-01 6:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-01 6:01 Dave Liu [this message]
2007-08-04 5:34 ` [U-Boot-Users] [PATCH] mpc83xx: Correct the burst length for DDR2 with 32 bits Dave Liu
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