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path: root/src/drivers/ocp/include/vpd.h
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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>
2023-02-08drivers/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>