Alexandru Gagniuc (mr.nuke.me@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3266
-gerrit
commit aa816d70de608836d0f38524d7a9469e85ee40a3 Author: Alexandru Gagniuc mr.nuke.me@gmail.com Date: Tue May 21 14:07:41 2013 -0500
spd.h: Add all known SPD_MEMORY_TYPE definitions.
This file was missing some definitions, so add them. Also turn the defines into an enum. The reason for doing this is that functions can now explicitly take an spd_memory_type as a parameter:
> int do_something_with_dram(enum spd_memory_type type, ...)
Which is a lot more explicit and readable than:
> int do_something_with_dram(u8 type, ...)
Also add an enum for SPD DIMM type. These are used in the VX900 branch.
Change-Id: Ic7871e82c2523a94eac8e07979a8e34e0b459b46 Signed-off-by: Alexandru Gagniuc mr.nuke.me@gmail.com --- src/include/spd.h | 41 ++++++++++++++++++++++++++++++++--------- 1 file changed, 32 insertions(+), 9 deletions(-)
diff --git a/src/include/spd.h b/src/include/spd.h index e8d35cf..ff5e1dc 100644 --- a/src/include/spd.h +++ b/src/include/spd.h @@ -3,6 +3,7 @@ * * Copyright (C) 2005 Digital Design Corporation * Copyright (C) 2006 Uwe Hermann uwe@hermann-uwe.de + * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -108,15 +109,37 @@
/* SPD_MEMORY_TYPE values. */ -#define SPD_MEMORY_TYPE_FPM_DRAM 1 -#define SPD_MEMORY_TYPE_EDO 2 -#define SPD_MEMORY_TYPE_PIPELINED_NIBBLE 3 -#define SPD_MEMORY_TYPE_SDRAM 4 -#define SPD_MEMORY_TYPE_MULTIPLEXED_ROM 5 -#define SPD_MEMORY_TYPE_SGRAM_DDR 6 -#define SPD_MEMORY_TYPE_SDRAM_DDR 7 -#define SPD_MEMORY_TYPE_SDRAM_DDR2 8 -#define SPD_MEMORY_TYPE_SDRAM_DDR3 0xb +enum spd_memory_type { + SPD_MEMORY_TYPE_UNDEFINED = 0x00, + SPD_MEMORY_TYPE_FPM_DRAM = 0x01, + SPD_MEMORY_TYPE_EDO = 0x02, + SPD_MEMORY_TYPE_PIPELINED_NIBBLE = 0x03, + SPD_MEMORY_TYPE_SDRAM = 0x04, + SPD_MEMORY_TYPE_MULTIPLEXED_ROM = 0x05, + SPD_MEMORY_TYPE_SGRAM_DDR = 0x06, + SPD_MEMORY_TYPE_SDRAM_DDR = 0x07, + SPD_MEMORY_TYPE_SDRAM_DDR2 = 0x08, + SPD_MEMORY_TYPE_FBDIMM_DDR2 = 0x09, + SPD_MEMORY_TYPE_FB_PROBE_DDR2 = 0x0a, + SPD_MEMORY_TYPE_SDRAM_DDR3 = 0x0b, +}; + +/* Module type (byte 3, bits 3:0) of SPD */ +enum spd_dimm_type { + SPD_DIMM_TYPE_UNDEFINED = 0, + SPD_DIMM_TYPE_RDIMM = 1, + SPD_DIMM_TYPE_UDIMM = 2, + SPD_DIMM_TYPE_SO_DIMM = 3, + SPD_DIMM_TYPE_MICRO_DIMM = 4, + SPD_DIMM_TYPE_MINI_RDIMM = 5, + SPD_DIMM_TYPE_MINI_UDIMM = 6, + SPD_DIMM_TYPE_MINI_CDIMM = 7, + SPD_DIMM_TYPE_72B_SO_UDIMM = 8, + SPD_DIMM_TYPE_72B_SO_RDIMM = 9, + SPD_DIMM_TYPE_72B_SO_CDIMM = 10, + /* Masks to bits 3:0 to give the dimm type */ + SPD_DIMM_TYPE_MASK = 0x0f, +};
/* SPD_MODULE_VOLTAGE values. */ #define SPD_VOLTAGE_TTL 0 /* 5.0 Volt/TTL */