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path: root/src/drivers/ocp/vpd
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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>