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2017-10-31intel/common/smbus: increase spd read performanceKane Chen
This change increases the spd read performance by using smbus word access. BUG=b:67021853 TEST=boot to os and find 80~100 ms boot time improvement on one dimm Change-Id: I98fe67642d8ccd428bccbca7f6390331d6055d14 Signed-off-by: Kane Chen <kane.chen@intel.com> Reviewed-on: https://review.coreboot.org/22072 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-11-23include/device/early_smbus.h: Declare smbus write functionNaresh G Solanki
Add declaration for smbus write. Early smbus access also needs smbus write function specially to read spd for DDR4 wherein page has to be switched by smbus write. Change-Id: I246cbdf0b52923f01dd036f63df17bf9af043c9f Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com> Reviewed-on: https://review.coreboot.org/17557 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-10-31tree: drop last paragraph of GPL copyright headerPatrick Georgi
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-07-12Change #ifdef and #if defined CONFIG_ bools to #if IS_ENABLED()Martin Roth
Kconfigs symbols of type bool are always defined, and can be tested with the IS_ENABLED() macro. symbol type except string. Change-Id: Ic4ba79f519ee2a53d39c10859bbfa9c32015b19d Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: http://review.coreboot.org/10885 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-01-09src/include: Doxygen fixesMartin Roth
- Join doxygen file command with the file description - Give extended file location so doxygen knows which early_sbmus.h the file is. (I don't get this either, but it fixes the warning) Change-Id: Ia91fb1ac1e9687e1a5a5cb5234696b3c24d4cd24 Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: http://review.coreboot.org/8174 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2013-06-06(Trivial) early_smbus: fix printsmbus macroAlexandru Gagniuc
When I've first written this macro in 2011, the correct define for verbose SMBus message was CONFIG_DEBUG_SMBUS_SETUP. This has since been changed to CONFIG_DEBUG_SMBUS. I didn't catch that, and this made the printsmbus macro always evaluate to an empty statement. Use the proper CONFIG_DEBUG_SMBUS define. This makes printsmbus functional again. Change-Id: Iaf03354b179cc4a061e0b65f5b746af10f5d2b88 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/3379 Tested-by: build bot (Jenkins) Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2013-06-04coreboot: Add generic early SMBus APIAlexandru Gagniuc
Early SMBUS code with similar functionality is duplicated for all southbridges. Add a generic SMBus API (function declarations) designed to unify the early SMBus structure. This patch only adds the API. It does not implement any hardware-specific bits. Change-Id: I0861b7a3f098115182ae6de9f016dd671c500bad Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/143 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>