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2024-06-05Xeon-SP boards: Factor out OCP VPD `get_cxl_mode()` implAngel Pons
There's two copies of the `get_cxl_mode()` function to map the OCP VPD value to the values expected by platform code. As this is unnecessary, have a single copy of this function in the OCP VPD driver code. As the `get_cxl_mode()` function is Xeon-SP only, keep it in a separate file. This change simplifies things for boards using OCP VPD for CXL and has no impact for boards *not* using OCP VPD: - Boards not using OCP VPD can still define get_cxl_mode() in mainboard code as needed, just like they were able to do before. - Boards using OCP VPD but without CXL (`SOC_INTEL_HAS_CXL` is not enabled), this code won't get compiled in at all (see `Makefile.mk`). - Boards using OCP VPD and CXL will automatically make use of this `get_cxl_mode()` definition, which should be the same for all boards. It is possible that this may need to be expanded/adapted in the future, which is easy to handle in a follow-up commit when the need arises. TEST=Build and boot on intel/archercity CRB Change-Id: I935c4eb5b2392e2d0dc01b9f66d46c79b8141ea7 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/82224 Reviewed-by: Shuo Liu <shuo.liu@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
2024-02-18drivers: Add SPDX license headers to Kconfig filesMartin Roth
Change-Id: Ib27894f0f1e03501583fffb2c759b493d6a7b945 Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/80588 Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2024-01-24driver/intel to /driver/ocp: Rename Makefiles from .inc to .mkMartin Roth
The .inc suffix is confusing to various tools as it's not specific to Makefiles. This means that editors don't recognize the files, and don't open them with highlighting and any other specific editor functionality. This issue is also seen in the release notes generation script where Makefiles get renamed before running cloc. Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: Id47a5ef3c53f767d1e03c788e0022d05b21f5c28 Reviewed-on: https://review.coreboot.org/c/coreboot/+/80079 Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
2023-08-06drivers: Add SPDX license headers to MakefilesMartin Roth
To help identify the licenses of the various files contained in the coreboot source, we've added SPDX headers to the top of all of the .c and .h files. This extends that practice to Makefiles. Any file in the coreboot project without a specific license is bound to the license of the overall coreboot project, GPL Version 2. This patch adds the GPL V2 license identifier to the top of all makefiles in the drivers directory that don't already have an SPDX license line at the top. Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: I8442bc18ce228eca88a084660be84bcd1c5de928 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68980 Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Tim Crawford <tcrawford@system76.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
2023-06-01drivers/ocp/vpd: Overwrite Linux payload's kernel command via VPDJohnny Lin
Add a new Kconfig LINUXPAYLOAD_CMDLINE_VPD_OVERWRITE that can overwrite Linux payload's kernel command line from VPD. Currently only overwrite Linux kernel command line 'loglevel' via VPD key 'kernel_log_level'. TESTED=On OCP Delta Lake, with kernel_log_level set to 0, warm reboot time can see about 10 seconds improvement comparing to kernel log level 7. Change-Id: Idf06c7ab9958c940fc3b23d560bb9dade991a6da Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/75510 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2023-02-16drivers/ocp/vpd: Override mainboard_set_smm_log_levelJohnny Lin
VPD variable 'smm_log_level' can be read and passed to SMM for overriding SMM log level. By default it's zero therefore it disables most of the SMM log. When we need to see SMM log we can set this VPD to a larger value to enable it. Implement mainboard_set_smm_log_level() that reads VPD variables for SMM log level. Change-Id: I90d471d1d070d9a0f1a82ca9da8a2c034c9fd574 Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/71992 Reviewed-by: Marc Jones <marc@marcjonesconsulting.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
2023-02-08drivers/ocp, mb/ocp/deltalake: move get_loglevel_from_vpd functionJohnny Lin
Move get_loglevel_from_vpd from mb/ocp/deltalake to driver drivers/ocp/vpd/loglevel_vpd.c. Change-Id: I70af1051f63c527fd8150f5ecbe4765b4aaacd20 Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/71936 Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2023-01-11drivers/ocp/vpd: add get_cxl_mode_from_vpd()Johnny Lin
cxl_mode VPD variable supports 3 modes: CXL_DISABLED, CXL_SYSTEM_MEMORY and CXL_SPM. Change-Id: Ib3bf85fbe687680db3c11efa908c4fb351be9c44 Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/71100 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Zhang <jonzhang@fb.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2022-12-22drivers/ocp: add VPD processing frameworkJonathan Zhang
Add VPD processing framework to be shared by OCP mainboards: * define VPD configuration items in vpd.h. * add helper functions: ** get_bool_from_vpd() ** get_int_from_vpd_range() Change-Id: I705bea348b1611f25ccbd798b77cfee22ec30f0f Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com> Signed-off-by: Tim Chu <Tim.Chu@quantatw.com> Signed-off-by: Marc Jones <marcjones@sysproconsulting.com> Signed-off-by: Jonathan Zhang <jonzhang@meta.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68784 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: David Hendricks <david.hendricks@gmail.com>