From e9c591a5547f48b2fce3337a502e87da6833d6d5 Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Sat, 6 Apr 2024 02:09:04 +0100 Subject: add t440p/w541 configs using broadwell mrc broadwell mrc enables both igpu and dgpu to be enabled at any given time. if the onboard (intel) gpu is set as primary, the logic to disable it is not executed within coreboot; instead, the igpu is used for vga decode. on some t440p/w541 thinkpads, both an intel and nvidia gpu are present. in this setup, the intel gpu must be used for vga, and all output, but rendering can be offloaded to the nvidia gpu (nvidia optimus). optimus would never work on haswell mrc.bin, because it always disables the igpu when a dgpu is present, so a hack exists in coreboot that hides the dgpu from mrc, so that the igpu remains enabled. broadwell mrc doesn't do this, so the option to hide PEG devices has been disabled in these configs. the broadwell mrc has better peg device handling, and can support 16gb modules on broadwell hardware; it may well support these modules on haswell hardware too, though ddr3 sodimms are very hard to find (and expensive). (and currently untested, with this patch) Signed-off-by: Leah Rowe --- config/vendor/sources | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'config/vendor') diff --git a/config/vendor/sources b/config/vendor/sources index ba59a994..2d54bd44 100644 --- a/config/vendor/sources +++ b/config/vendor/sources @@ -23,7 +23,7 @@ # haswell boards, but use broadwell mrc.bin. uses me9 and # the broadwell mrc, but without broadwell refcode -{dell9020sffbmrc dell9020mtbmrc}{ +{dell9020sffbmrc dell9020mtbmrc t440pbmrc w541bmrc}{ DL_hash f3d79aec805c8b0094a4081be76b3a22d329c479ad18210449b7acc3236ccfc4a2103eaa7c5b79a4872bfd699eede047efd46dfb06dc8f47e3216fc254612998 DL_url https://download.lenovo.com/pccbbs/mobiles/glrg22ww.exe DL_url_bkup https://web.archive.org/web/20211120031520/https://download.lenovo.com/pccbbs/mobiles/glrg22ww.exe -- cgit v1.2.1