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path: root/src/soc/intel/skylake/lpc.c
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2016-03-12soc/intel/skylake: add option to statically clock gate 8254 timerAaron Durbin
In order to save more power by shutting down clocks add the ability to optionally clock gate the 8254 programmable interrupt timer. When doing this the platforms lose their "PC"-ness which certain payloads and OSes rely on such as SeaBIOS. BUG=chrome-os-partner:50214 BRANCH=glados TEST=Enabled option on chell. Noted the bit is set upon booting. Change-Id: I01f9d177bbde417d1efec2e16656a07dcebccbde Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 662575aa6a63656dedfa0ce1f202f5fac0205477 Original-Change-Id: Ib4a613cf1c28fc96c36fa2987c4b58a05beab178 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/329411 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/331171 Original-Commit-Ready: Patrick Georgi <pgeorgi@chromium.org> Original-Tested-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/13985 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-01-19intel/skylake: Fix issues found by klockworkNaresh G Solanki
src/soc/intel/skylake/acpi.c Function cbmem_find may return NULL, check before using its result. src/soc/intel/skylake/flash_controller.c Remove dead code: spi_claim_bus is a no-op, always returning 0. src/soc/intel/skylake/gpio.c Check for NULL before using pointers. src/soc/intel/skylake/igd.c Don't copy 0-termination of signature string. src/soc/intel/skylake/lpc.c Don't check unsigned >= 0. src/soc/intel/skylake/systemagent.c Explicitly cast result to 64bit. BRANCH=None BUG=chrome-os-partner:48542 TEST=Built & booted Kunimitsu board. Change-Id: I6cbf4f78382383d3c8c3b15f66c5898ab5bf183a Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: d98a8cdd3d095a6943c0e104cd4938639a62bd14 Original-Change-Id: Id2a31402618f4c9f6f53525ebcf6b71fd67428db Original-Signed-off-by: Naresh G Solanki <Naresh.Solanki@intel.com> Original-Reviewed-on: https://chromium-review.googlesource.com/317522 Original-Commit-Ready: Naresh Solanki <naresh.solanki@intel.com> Original-Tested-by: Naresh Solanki <naresh.solanki@intel.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/12991 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins)
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>
2015-10-27intel/kunimitsu FAB3: Configure LPC to Quiet Mode.pchandri
This patch configures the LPC to quiet mode and sets enables CLKRUN so that LPC can be power gated. BUG=chrome-os-partner:44993 BRANCH=none TEST=Builds and Boots on fab3 kunimitsu. Change-Id: I46ff21f75b70f54da3f12dcc56d61f84b436cd7d Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: edd37df385bc013b62f26435267291acc0a9b9a4 Original-Change-Id: Ide0f9e91127aebb8ac027ee0a598608b50aa4278 Original-Signed-off-by: pchandri <preetham.chandrian@intel.com> Original-Reviewed-on: https://chromium-review.googlesource.com/305396 Original-Commit-Ready: Preetham Chandrian <preetham.chandrian@intel.com> Original-Tested-by: Preetham Chandrian <preetham.chandrian@intel.com> Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-by: Preetham Chandrian <preetham.chandrian@intel.com> Reviewed-on: http://review.coreboot.org/12153 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-08-19skylake: correct IO-APIC redirection entry countAaron Durbin
The skylake IO-APIC supports up to 120 redirection entries. In practice it seems FSP has already written to this write-once register. However, it doesn't hurt to actually be correct within the source. BUG=chrome-os-partner:43522 BRANCH=None TEST=Built and booted glados. Original-Change-Id: I666b1b6034f0d37a37ea918f802317f9d5f15718 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/293251 Original-Reviewed-by: Robbie Zhang <robbie.zhang@intel.com> Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: I6ddbc89c98c262e2dd0f9f0b76adb092d3043602 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11235 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-16soc/intel: Add Skylake SOC supportLee Leahy
Add the files to support the Skylake SOC. Matches chromium tree at 927026db BRANCH=none BUG=None TEST=Build and run on a Skylake platform Change-Id: I80248f7e47eaf13b52e3c7ff951eb1976edbaa15 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10341 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-16soc/intel/skylake: Use Broadwell as comparision base for Skylake SOCLee Leahy
Use the Broadwell implementation as the comparison base for Skylake. BRANCH=none BUG=None TEST=None Change-Id: I22eb55ea89eb0d6883f98e4c72a6d243e819e6d8 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10340 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>