diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2012-04-18 20:33:35 +0300 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2012-04-21 09:37:04 +0200 |
| commit | 97c064f0346874dcf02d4b2700a7e7c7913b24c9 (patch) | |
| tree | 4b54f54c2b3ba29bd55df69563fd990c442f105b /src/northbridge/intel/e7505/Kconfig | |
| parent | a8111cf980e01e9f8706024f06c05840b5fc8bcf (diff) | |
Intel e7505: enable ECC scrubbing
It takes about 3 seconds to scrub 8GiB DDR266 RAM.
After ECC scrub XIP cache is disabled for system stability. There is
very little to do in romstage after ECC scrub, especially when RAM
debug messages are turned off. So the delay caused by this is hardly
noticeable.
Cache for complete ROM is re-enabled before ramstage is decompressed,
and it has no unstability issues. So the code required to re-enable
cache for ROM currently already exists in cache-as-ram_ht.inc.
A Kconfig option HW_SCRUBBER enables the scrub to be run on hard
reboots and power-ons.
Change-Id: Icf27acf73240c06b58091f1229efc0f01cca3f85
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/905
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/northbridge/intel/e7505/Kconfig')
| -rw-r--r-- | src/northbridge/intel/e7505/Kconfig | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/northbridge/intel/e7505/Kconfig b/src/northbridge/intel/e7505/Kconfig index 578ab866d8..8ef1a36013 100644 --- a/src/northbridge/intel/e7505/Kconfig +++ b/src/northbridge/intel/e7505/Kconfig @@ -1,4 +1,33 @@ +## +## This file is part of the coreboot project. +## +## Copyright (C) 2007-2012 coresystems GmbH +## +## 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + config NORTHBRIDGE_INTEL_E7505 bool + +if NORTHBRIDGE_INTEL_E7505 + +config NORTHBRIDGE_SPECIFIC_OPTIONS # dummy + def_bool y select HAVE_DEBUG_RAM_SETUP +config HW_SCRUBBER + bool + default n + +endif |