coreboot-kgpe-d16/src/northbridge/intel/i82810/raminit.h
Stefan Reinauer 14e2277962 Since some people disapprove of white space cleanups mixed in regular commits
while others dislike them being extra commits, let's clean them up once and
for all for the existing code. If it's ugly, let it only be ugly once :-)

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-27 06:56:47 +00:00

87 lines
3.1 KiB
C

/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 Corey Osgood <corey@slightlyhackish.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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef NORTHBRIDGE_INTEL_I82810_RAMINIT_H
#define NORTHBRIDGE_INTEL_I82810_RAMINIT_H
/* The 82810 supports max. 2 dual-sided DIMMs. */
#define DIMM_SOCKETS 2
/* DIMM0 is at 0x50, DIMM1 is at 0x51. */
#define DIMM_SPD_BASE 0x50
/* The following table has been bumped over to this header to avoid clutter in
* raminit.c. It's used to translate the value read from SPD Byte 31 to a value
* the northbridge can understand in DRP, aka Rx52[7:4], [3:0]. Where most
* northbridges have some sort of simple calculation that can be done for this,
* I haven't yet figured out one for this northbridge. Until someone does,
* this table is necessary.
*/
/* TODO: Find a better way of doing this. */
static const uint8_t translate_spd_to_i82810[] = {
/* Note: 4MB sizes are not supported, so dual-sided DIMMs with a 4MB
* side can't be either, at least for now.
*/
/* TODO: For above case, only use the other side if > 4MB, and get some
* of these DIMMs to test it with. Same for unsupported 128/x sizes.
*/
/* SPD Byte 31 Memory Size [Side 1/2] */
0xff, /* 0x01 No memory */
0xff, /* 0x01 4/0 */
0x01, /* 0x02 8/0 */
0xff, /* 0x03 8/4 */
0x04, /* 0x04 16/0 or 16 */
0xff, /* 0x05 16/4 */
0x05, /* 0x06 16/8 */
0xff, /* 0x07 Invalid */
0x07, /* 0x08 32/0 or 32 */
0xff, /* 0x09 32/4 */
0xff, /* 0x0A 32/8 */
0xff, /* 0x0B Invalid */
0x08, /* 0x0C 32/16 */
0xff, 0xff, 0xff, /* 0x0D-0F Invalid */
0x0a, /* 0x10 64/0 or 64 */
0xff, /* 0x11 64/4 */
0xff, /* 0x12 64/8 */
0xff, /* 0x13 Invalid */
0xff, /* 0x14 64/16 */
0xff, 0xff, 0xff, /* 0x15-17 Invalid */
0x0b, /* 0x18 64/32 */
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x19-1f Invalid */
0x0d, /* 0x20 128/0 or 128 */
/* These configurations are not supported by the i810 */
0xff, /* 0x21 128/4 */
0xff, /* 0x22 128/8 */
0xff, /* 0x23 Invalid */
0xff, /* 0x24 128/16 */
0xff, 0xff, 0xff, /* 0x25-27 Invalid */
0xff, /* 0x28 128/32 */
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x29-2f Invalid */
0x0e, /* 0x30 128/64 */
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, /* 0x31-3f Invalid */
0x0f, /* 0x40 256/0 or 256 */
/* Anything larger is not supported by the 82810. */
};
#endif /* NORTHBRIDGE_INTEL_I82810_RAMINIT_H */