[U-Boot] [PATCH] fsl-ddr: add the macro for Rtt_Nom definition
Kumar Gala
galak at kernel.crashing.org
Wed Apr 7 19:34:30 CEST 2010
From: Dave Liu <daveliu at freescale.com>
add the macro definition for Rtt_Nom termination value for DDR3
Signed-off-by: Dave Liu <daveliu at freescale.com>
---
include/asm-ppc/fsl_ddr_sdram.h | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/include/asm-ppc/fsl_ddr_sdram.h b/include/asm-ppc/fsl_ddr_sdram.h
index 3216a50..02920db 100644
--- a/include/asm-ppc/fsl_ddr_sdram.h
+++ b/include/asm-ppc/fsl_ddr_sdram.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2008-2009 Freescale Semiconductor, Inc.
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -24,6 +24,12 @@
#define DDR_OTF 6 /* on-the-fly BC4 and BL8 */
#define DDR_BL8 8 /* burst length 8 */
+#define DDR3_RTT_60_OHM 1 /* RTT_Nom = RZQ/4 */
+#define DDR3_RTT_120_OHM 2 /* RTT_Nom = RZQ/2 */
+#define DDR3_RTT_40_OHM 3 /* RTT_Nom = RZQ/6 */
+#define DDR3_RTT_20_OHM 4 /* RTT_Nom = RZQ/12 */
+#define DDR3_RTT_30_OHM 5 /* RTT_Nom = RZQ/8 */
+
#if defined(CONFIG_FSL_DDR1)
#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (1)
typedef ddr1_spd_eeprom_t generic_spd_eeprom_t;
--
1.6.0.6
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