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| author | York Sun <yorksun@freescale.com> | 2011-08-26 11:32:43 -0700 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-09-29 19:01:06 -0500 |
| commit | 4e57382faa4bcad285baee21737de2c99ba6baad (patch) | |
| tree | 80e21640ec9d225d36938a6f92d8836434544aa8 /arch/powerpc/include/asm | |
| parent | 905acde21a3662e366db4489238cdf35b3b2bb52 (diff) | |
| download | u-boot-imx-4e57382faa4bcad285baee21737de2c99ba6baad.zip u-boot-imx-4e57382faa4bcad285baee21737de2c99ba6baad.tar.gz u-boot-imx-4e57382faa4bcad285baee21737de2c99ba6baad.tar.bz2 | |
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 <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/fsl_ddr_sdram.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h index 5b6e8d9..93639ba 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; |