From: Dave Liu daveliu@freescale.com
add the macro definition for Rtt_Nom termination value for DDR3
Signed-off-by: Dave Liu daveliu@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;