(WIP) update coreboot

DO NOT MERGE! We want a coreboot release, not coreboot-git.
This is for testing only!

Update coreboot from 4.8.1 to the git master branch HEAD at build-time and
port patches.

TODO:
* coreboot defconfig update for all boards!
  (configure FSP_USE_REPO?) Needed for skylake/kabylake
* test
* switch to the next coreboot tag and remove all old patches

For an overview of the changes in coreboot, see
https://doc.coreboot.org/releases/coreboot-4.9-relnotes.html
https://doc.coreboot.org/releases/coreboot-4.10-relnotes.html

Makefile

@@ -230,8 +230,7 @@ define define_module =
     # that the files are all present. No signature hashes are checked in
     # this case, since we don't have a stable version to compare against.
     $(build)/$($1_base_dir)/.canary:
-	git clone $($1_repo) "$(build)/$($1_base_dir)"
-	cd $(build)/$($1_base_dir) && git submodule update --init --checkout
+	git clone --recurse-submodules $($1_repo) "$(build)/$($1_base_dir)"
 	if [ -r patches/$1.patch ]; then \
 		( cd $(build)/$($1_base_dir) ; patch -p1 ) \
 			< patches/$1.patch \

config/coreboot-x230.config

@@ -10,15 +10,12 @@ CONFIG_CBFS_SIZE=0x700000
 CONFIG_DRIVERS_UART_8250IO=y
 CONFIG_BOARD_LENOVO_X230=y
 CONFIG_DRIVERS_PS2_KEYBOARD=y
+CONFIG_LINUX_COMMAND_LINE="intel_iommu=igfx_off quiet"
 CONFIG_UART_PCI_ADDR=0
 CONFIG_NO_GFX_INIT=y
 # CONFIG_CONSOLE_SERIAL is not set
 CONFIG_CONSOLE_CBMEM_BUFFER_SIZE=0x80000
 CONFIG_DEFAULT_CONSOLE_LOGLEVEL_5=y
 CONFIG_PAYLOAD_LINUX=y
 CONFIG_PAYLOAD_FILE="../../build/x230/bzImage"
-CONFIG_PAYLOAD_OPTIONS=""
-# CONFIG_PXE is not set
-CONFIG_LINUX_COMMAND_LINE="intel_iommu=igfx_off quiet"
 CONFIG_LINUX_INITRD="../../build/x230/initrd.cpio.xz"
-CONFIG_DEBUG_SMM_RELOCATION=y

modules/coreboot

@@ -1,13 +1,14 @@
 modules-$(CONFIG_COREBOOT) += coreboot
 
-#coreboot_version := git
-#coreboot_repo := https://github.com/osresearch/coreboot
-coreboot_version := 4.8.1
+coreboot_version := git
+# coreboot_repo := https://github.com/coreboot/coreboot
+coreboot_repo := https://review.coreboot.org/coreboot.git
+# coreboot_version := 4.8.1
 coreboot_base_dir := coreboot-$(coreboot_version)
 coreboot_dir := $(coreboot_base_dir)/$(BOARD)
-coreboot_tar := coreboot-$(coreboot_version).tar.xz
-coreboot_url := https://www.coreboot.org/releases/$(coreboot_tar)
-coreboot_hash := f0ddf4db0628c1fe1e8348c40084d9cbeb5771400c963fd419cda3995b69ad23
+# coreboot_tar := coreboot-$(coreboot_version).tar.xz
+# coreboot_url := https://www.coreboot.org/releases/$(coreboot_tar)
+# coreboot_hash := f0ddf4db0628c1fe1e8348c40084d9cbeb5771400c963fd419cda3995b69ad23
 
 # Coreboot builds are specialized on a per-target basis.
 # The builds are done in a per-target subdirectory