coreboot+coreboot patch+CircleCI config: adapt to have nv41/ns50 build on top of linuxboot#1417 and linuxboot#1462

PoC: reuse 4.19 buildstack to make clear if there is a gain or not, since nv41/ns50 are based on x230-hotp-maximized which wil be cached after clean build

Author: tlaurion

.circleci/config.yml

@@ -231,13 +231,17 @@ workflows:
           requires:
             - x230-hotp-maximized
 
-      # coreboot-git Nitropads on top of coreboot-git librems
+      # coreboot-git Nitropads depending on x230-hotp-maximized cache
+      # since kernel is 6.x and coreboot is git is unshared
+      # We use nitropad's coreboot's fork crossgcc
+      # No need to wait further for other board's cache.
+      # We reuse built modules from x230-hotp-maximized cache only
       - build_and_persist:
           name: nitropad-nv41
           target: nitropad-nv41
           subcommand: ""
           requires:
-            - librem_14
+            - x230-hotp-maximized
 
       # coreboot-git Talos II (PPC)
       - build_and_persist:
@@ -548,7 +552,7 @@ workflows:
           requires:
             - librem_14
 
-#coreboot-git Nitrokey NV
+#coreboot-git dasharo clevo_release + staging IASL patch
       - build:
           name: nitropad-ns50
           target: nitropad-ns50

modules/coreboot

@@ -85,6 +85,14 @@ coreboot-purism_repo := https://source.puri.sm/firmware/coreboot.git
 coreboot-purism_commit_hash := a899f08d2789db1dd9b02cff34179c4d38e6d0e3
 $(eval $(call coreboot_module,purism,))
 
+#Nitrokey nv41/ns50 are based on Dasharo coreboot port,
+# with patches staging under coreboot-clevo_release
+coreboot-nitrokey_repo := https://github.com/dasharo/coreboot
+coreboot-nitrokey_commit_hash := ae10b20f5c6abc9c23f709b65c46be6525da8c13
+coreboot-nitrokey_patch_version := clevo_release
+#We use clevo_release's crossgcc for now, unshared but between nitropad nv41/ns50
+$(eval $(call coreboot_module,nitrokey,4.19))
+
 # Check that the board configured the coreboot version correctly
 ifeq "$(CONFIG_COREBOOT_VERSION)" ""
 	$(error "$(BOARD): does not specify coreboot version under CONFIG_COREBOOT_VERSION")
@@ -99,6 +107,7 @@ coreboot_dir := $($(coreboot_module)_dir)
 coreboot_base_dir := $($(coreboot_module)_base_dir)
 
 $(coreboot_module)_depends += $(if $(CONFIG_PURISM_BLOBS), purism-blobs)
+$(coreboot_module)_depends += $(if $(CONFIG_NITROKEY_BLOBS), nitrokey-blobs)
 
 # coreboot builds are specialized on a per-target basis.
 # The builds are done in a per-target subdirectory

patches/coreboot-nitrokey-clevo_release/0001-change_acpica-unix2_location_to_a_mirror.patch

@@ -0,0 +1,23 @@
+From 6328eebb101fd0ded7168e1377da6a1a82a8e2da Mon Sep 17 00:00:00 2001
+From: Markus Meissner <[email protected]>
+Date: Wed, 19 Jul 2023 20:36:57 +0200
+Subject: [PATCH] change acpica-unix2 location to a mirror
+
+---
+ util/crossgcc/buildgcc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
+index 03c24da1be9..8880c89ea66 100755
+--- a/util/crossgcc/buildgcc
++++ b/util/crossgcc/buildgcc
+@@ -52,7 +52,7 @@ MPFR_ARCHIVE="https://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.xz"
+ MPC_ARCHIVE="https://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
+ GCC_ARCHIVE="https://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+ BINUTILS_ARCHIVE="https://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
+-IASL_ARCHIVE="https://acpica.org/sites/acpica/files/acpica-unix2-${IASL_VERSION}.tar.gz"
++IASL_ARCHIVE="https://gsdview.appspot.com/chromeos-localmirror/distfiles/acpica-unix2-${IASL_VERSION}.tar.gz"
+ # CLANG toolchain archive locations
+ LLVM_ARCHIVE="https://github.com/llvm/llvm-project/releases/download/llvmorg-${CLANG_VERSION}/llvm-${CLANG_VERSION}.src.tar.xz"
+ CLANG_ARCHIVE="https://github.com/llvm/llvm-project/releases/download/llvmorg-${CLANG_VERSION}/clang-${CLANG_VERSION}.src.tar.xz"
+