From: Dave Liu Date: Fri, 5 Mar 2010 04:23:00 +0000 (+0800) Subject: fsl-ddr: add the macro for Rtt_Nom definition X-Git-Tag: v2010.06-rc1~77^2~9 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f8d05e5e5888d88ab42524d699924936e8e77970;p=platform%2Fkernel%2Fu-boot.git fsl-ddr: add the macro for Rtt_Nom definition add the macro definition for Rtt_Nom termination value for DDR3 Signed-off-by: Dave Liu Signed-off-by: Kumar Gala --- diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h index 3216a50..02920db 100644 --- a/arch/powerpc/include/asm/fsl_ddr_sdram.h +++ b/arch/powerpc/include/asm/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;