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| author | Kumar Gala <galak@kernel.crashing.org> | 2011-09-16 09:54:30 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-10-03 08:52:14 -0500 |
| commit | 5ace2992b5a89afaa3144af4a076480651f4ddfa (patch) | |
| tree | 33ea3a1a255e58c0440ee4efc6ade3a6e3adb693 /arch/powerpc/include | |
| parent | 568336ecc7083afd0b8b16a6b8b4a796491c142f (diff) | |
| download | u-boot-imx-5ace2992b5a89afaa3144af4a076480651f4ddfa.zip u-boot-imx-5ace2992b5a89afaa3144af4a076480651f4ddfa.tar.gz u-boot-imx-5ace2992b5a89afaa3144af4a076480651f4ddfa.tar.bz2 | |
powerpc/mpc8548: Add workaround for erratum NMG_DDR120
Erratum NMG_DDR120 (DDR19 in MPC8548 errata document) applies to some
early version silicons. The default settings of the DDR IO receiver
biasing may not work at cold temperature. When a failure occurs,
a DDR input latches an incorrect value. The workaround will set the
receiver to an acceptable bias point.
Signed-off-by: Gong Chen
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/config_mpc85xx.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index f9bf80d..a0a12b2 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -62,6 +62,7 @@ #define CONFIG_SYS_FSL_NUM_LAWS 10 #define CONFIG_SYS_FSL_SEC_COMPAT 2 #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 +#define CONFIG_SYS_FSL_ERRATUM_NMG_DDR120 #elif defined(CONFIG_MPC8555) #define CONFIG_MAX_CPUS 1 |