The isdram command prints out decoded information the "serial presence detect" (SPD) chip on the SDRAM SIMMs. This can be very helpful when debugging memory configuration problems.
Signed-off-by: Gerald Van Baren vanbaren@cideas.com ---
Hi Kim,
The isdram command is controlled separately from the rest of the i2c commands (CONFIG_CMD_I2C + CONFIG_CMD_SDRAM). I did this originally because the isdram command was arguably a memory consuming luxury. Luxuries tend to become necessities over time...
Larry Johnson submitted a patch yesterday to extend the decoding and printout to include DDR2 fields, making this even more useful (and jdl is claiming a share of the credit ;-).
gvb
include/configs/MPC8360EMDS.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/configs/MPC8360EMDS.h b/include/configs/MPC8360EMDS.h index fdacb90..491bd4f 100644 --- a/include/configs/MPC8360EMDS.h +++ b/include/configs/MPC8360EMDS.h @@ -466,6 +466,7 @@ #define CONFIG_CMD_PING #define CONFIG_CMD_I2C #define CONFIG_CMD_ASKENV +#define CONFIG_CMD_SDRAM
#if defined(CONFIG_PCI) #define CONFIG_CMD_PCI