diff options
author | Martin Roth <martinroth@google.com> | 2015-10-11 10:37:02 +0200 |
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committer | Ronald G. Minnich <rminnich@gmail.com> | 2015-10-22 21:51:01 +0200 |
commit | bf6b83abe06ff53033e7cd74134972de6791cf26 (patch) | |
tree | 39d542ba472cd4398a030989e824e661a8751d49 /src/northbridge/intel/fsp_sandybridge/raminit.c | |
parent | a4ffe8aa4981130b240eee5ed22c5bbfa1c7598b (diff) |
Revert "Remove sandybridge and ivybridge FSP code path"
Please don't remove chipsets and mainboards without discussion and input
from the owners. Someone was asking about cougar canyon 2 just a couple
of weeks ago - there's obviously still interest.
This reverts commit fb50124d22014742b6990a95df87a7a828e891b6.
Change-Id: Icd7dcea21fa4a7808b25bb8727020701aeebffc9
Signed-off-by: Martin Roth <martinroth@google.com>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/12128
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/northbridge/intel/fsp_sandybridge/raminit.c')
-rw-r--r-- | src/northbridge/intel/fsp_sandybridge/raminit.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/northbridge/intel/fsp_sandybridge/raminit.c b/src/northbridge/intel/fsp_sandybridge/raminit.c new file mode 100644 index 0000000000..408b4b0611 --- /dev/null +++ b/src/northbridge/intel/fsp_sandybridge/raminit.c @@ -0,0 +1,76 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Google Inc. + * + * 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; version 2 of the License. + * + * 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. + */ + +#include <console/console.h> +#include <string.h> +#include <arch/io.h> +#include <cbmem.h> +#include <device/pci_def.h> +#include "raminit.h" +#include "northbridge.h" + +static const char* ecc_decoder[] = { + "inactive", + "active on IO", + "disabled on IO", + "active" +}; + +/* + * Dump in the log memory controller configuration as read from the memory + * controller registers. + */ +void report_memory_config(void) +{ + u32 addr_decoder_common, addr_decode_ch[2]; + int i; + + addr_decoder_common = MCHBAR32(0x5000); + addr_decode_ch[0] = MCHBAR32(0x5004); + addr_decode_ch[1] = MCHBAR32(0x5008); + + printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n", + (MCHBAR32(0x5e04) * 13333 * 2 + 50)/100); + printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n", + addr_decoder_common & 3, + (addr_decoder_common >> 2) & 3, + (addr_decoder_common >> 4) & 3); + + for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) { + u32 ch_conf = addr_decode_ch[i]; + printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", + i, ch_conf); + printk(BIOS_DEBUG, " ECC %s\n", + ecc_decoder[(ch_conf >> 24) & 3]); + printk(BIOS_DEBUG, " enhanced interleave mode %s\n", + ((ch_conf >> 22) & 1) ? "on" : "off"); + printk(BIOS_DEBUG, " rank interleave %s\n", + ((ch_conf >> 21) & 1) ? "on" : "off"); + printk(BIOS_DEBUG, " DIMMA %d MB width x%d %s rank%s\n", + ((ch_conf >> 0) & 0xff) * 256, + ((ch_conf >> 19) & 1) ? 16 : 8, + ((ch_conf >> 17) & 1) ? "dual" : "single", + ((ch_conf >> 16) & 1) ? "" : ", selected"); + printk(BIOS_DEBUG, " DIMMB %d MB width x%d %s rank%s\n", + ((ch_conf >> 8) & 0xff) * 256, + ((ch_conf >> 20) & 1) ? 16 : 8, + ((ch_conf >> 18) & 1) ? "dual" : "single", + ((ch_conf >> 16) & 1) ? ", selected" : ""); + } +} |