Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/64176 )
Change subject: nb/intel/haswell: Introduce option to not use MRC.bin ......................................................................
nb/intel/haswell: Introduce option to not use MRC.bin
Introduce the `USE_NATIVE_RAMINIT` Kconfig option, which should allow booting coreboot on Haswell mainboards without the need of the closed source MRC.bin. For now, this option does not work at all; the needed magic will be implemented in subsequent commits. Add a config file to make sure the newly-introduced option gets build-tested.
Change-Id: I46c77586f9b5771624082e07c60c205e578edd8e Signed-off-by: Angel Pons th3fanbus@gmail.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/64176 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Arthur Heymans arthur@aheymans.xyz Reviewed-by: Eric Lai eric_lai@quanta.corp-partner.google.com --- A configs/config.asrock_b85m_pro4.native_raminit M src/northbridge/intel/haswell/Kconfig M src/northbridge/intel/haswell/Makefile.inc A src/northbridge/intel/haswell/native_raminit/Makefile.inc A src/northbridge/intel/haswell/native_raminit/raminit_native.c 5 files changed, 62 insertions(+), 1 deletion(-)
Approvals: build bot (Jenkins): Verified Arthur Heymans: Looks good to me, approved Eric Lai: Looks good to me, approved
diff --git a/configs/config.asrock_b85m_pro4.native_raminit b/configs/config.asrock_b85m_pro4.native_raminit new file mode 100644 index 0000000..2de5389 --- /dev/null +++ b/configs/config.asrock_b85m_pro4.native_raminit @@ -0,0 +1,5 @@ +# Configuration used to build-test native raminit +CONFIG_VENDOR_ASROCK=y +CONFIG_BOARD_ASROCK_B85M_PRO4=y +CONFIG_USE_NATIVE_RAMINIT=y +CONFIG_DEBUG_RAM_SETUP=y diff --git a/src/northbridge/intel/haswell/Kconfig b/src/northbridge/intel/haswell/Kconfig index 50acb09a..b659bf6 100644 --- a/src/northbridge/intel/haswell/Kconfig +++ b/src/northbridge/intel/haswell/Kconfig @@ -9,6 +9,14 @@
if NORTHBRIDGE_INTEL_HASWELL
+config USE_NATIVE_RAMINIT + bool "[NOT WORKING] Use native raminit" + default n + select HAVE_DEBUG_RAM_SETUP + help + Select if you want to use coreboot implementation of raminit rather than + MRC.bin. Currently incomplete and does not boot. + config HASWELL_VBOOT_IN_BOOTBLOCK depends on VBOOT bool "Start verstage in bootblock" @@ -45,6 +53,7 @@
config DCACHE_RAM_SIZE hex + default 0x40000 if USE_NATIVE_RAMINIT default 0x10000 help The size of the cache-as-ram region required during bootblock @@ -53,12 +62,14 @@
config DCACHE_RAM_MRC_VAR_SIZE hex + default 0x0 if USE_NATIVE_RAMINIT default 0x30000 help The amount of cache-as-ram region required by the reference code.
config DCACHE_BSP_STACK_SIZE hex + default 0x20000 if USE_NATIVE_RAMINIT default 0x2000 help The amount of anticipated stack usage in CAR by bootblock and @@ -66,6 +77,7 @@
config HAVE_MRC bool "Add a System Agent binary" + depends on !USE_NATIVE_RAMINIT help Select this option to add a System Agent binary to the resulting coreboot image. @@ -82,6 +94,7 @@
config HASWELL_HIDE_PEG_FROM_MRC bool "Hide PEG devices from MRC to work around hardcoded MRC behavior" + depends on !USE_NATIVE_RAMINIT default y help If set, hides all PEG devices from MRC. This allows the iGPU diff --git a/src/northbridge/intel/haswell/Makefile.inc b/src/northbridge/intel/haswell/Makefile.inc index 2d1532b..329f1f7ff 100644 --- a/src/northbridge/intel/haswell/Makefile.inc +++ b/src/northbridge/intel/haswell/Makefile.inc @@ -19,6 +19,11 @@
postcar-y += memmap.c
-subdirs-y += haswell_mrc +ifeq ($(CONFIG_USE_NATIVE_RAMINIT),y) +subdirs-y += native_raminit + +else +subdirs-y += haswell_mrc +endif
endif diff --git a/src/northbridge/intel/haswell/native_raminit/Makefile.inc b/src/northbridge/intel/haswell/native_raminit/Makefile.inc new file mode 100644 index 0000000..8cfb4fb --- /dev/null +++ b/src/northbridge/intel/haswell/native_raminit/Makefile.inc @@ -0,0 +1,3 @@ +## SPDX-License-Identifier: GPL-2.0-or-later + +romstage-y += raminit_native.c diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_native.c b/src/northbridge/intel/haswell/native_raminit/raminit_native.c new file mode 100644 index 0000000..1aafdf8 --- /dev/null +++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.c @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <console/console.h> +#include <northbridge/intel/haswell/raminit.h> + +void perform_raminit(const int s3resume) +{ + /* + * See, this function's name is a lie. There are more things to + * do that memory initialisation, but they are relatively easy. + */ + + /** TODO: Implement the required magic **/ + die("NATIVE RAMINIT: More Magic (tm) required.\n"); +}