From 4e57382faa4bcad285baee21737de2c99ba6baad Mon Sep 17 00:00:00 2001 From: York Sun Date: Fri, 26 Aug 2011 11:32:43 -0700 Subject: powerpc/mpc8xxx: Add DDR2 to unified DDR driver DDR2 has different ODT table and values. Adding table according to Samsung application note. Fix additive latency calculation to avoid interger underflow. Also converted typedef dynamic_odt_t to struct dynamic_odt. Signed-off-by: York Sun Signed-off-by: Kumar Gala --- arch/powerpc/include/asm/fsl_ddr_sdram.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/powerpc/include/asm/fsl_ddr_sdram.h') diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h index 5b6e8d9830..93639ba851 100644 --- a/arch/powerpc/include/asm/fsl_ddr_sdram.h +++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h @@ -31,6 +31,11 @@ #define DDR3_RTT_20_OHM 4 /* RTT_Nom = RZQ/12 */ #define DDR3_RTT_30_OHM 5 /* RTT_Nom = RZQ/8 */ +#define DDR2_RTT_OFF 0 +#define DDR2_RTT_75_OHM 1 +#define DDR2_RTT_150_OHM 2 +#define DDR2_RTT_50_OHM 3 + #if defined(CONFIG_FSL_DDR1) #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (1) typedef ddr1_spd_eeprom_t generic_spd_eeprom_t; -- cgit v1.2.1