[U-Boot] ddr: Invalid SPD module type definitions for SO-DIMM with ECC

Ralf Göbel ralf.goebel at imago-technologies.com
Thu Sep 8 14:44:17 CEST 2016


Hi,

it think the SPD module type definitions for DDR4 SO-DIMM with ECC in the
file include/ddr_spd.h are swapped:

#define DDR4_SPD_MODULETYPE_72B_SO_UDIMM	(0x08)
#define DDR4_SPD_MODULETYPE_72B_SO_RDIMM	(0x09)

According to JEDEC document SPD4.1.2.L-4, UDIMM is 0x9 and RDIMM is 0x8.
Can someone verify this?

Regards,
Ralf



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