[coreboot-gerrit] Change in coreboot[master]: payloads/LinuxBoot: Add ARM64 support

Patrick Rudolph (Code Review) gerrit at coreboot.org
Wed Mar 14 16:04:39 CET 2018


Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/25152


Change subject: payloads/LinuxBoot: Add ARM64 support
......................................................................

payloads/LinuxBoot: Add ARM64 support

Add support for ARCH=ARM64 and introduce CROSS_COMPILE for all architectures.

Change-Id: I9a0cc248283432fb2384956ca55e687d4127398c
Signed-off-by: Patrick Rudolph <patrick.rudolph at 9elements.com>
---
M payloads/external/LinuxBoot/Kconfig
M payloads/external/LinuxBoot/Kconfig.name
M payloads/external/LinuxBoot/Makefile
A payloads/external/LinuxBoot/arm64/defconfig
A payloads/external/LinuxBoot/arm64/kernel_fdt.its
M payloads/external/LinuxBoot/targets/u-root.mk
M payloads/external/Makefile.inc
7 files changed, 345 insertions(+), 26 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/52/25152/1

diff --git a/payloads/external/LinuxBoot/Kconfig b/payloads/external/LinuxBoot/Kconfig
index 74e6c94..278a8ef 100644
--- a/payloads/external/LinuxBoot/Kconfig
+++ b/payloads/external/LinuxBoot/Kconfig
@@ -20,19 +20,30 @@
 
 config LINUXBOOT_X86_64
 	bool "x86_64"
+	depends on ARCH_X86
 	help
 	  AMD64 kernel and initramfs
 
 config LINUXBOOT_X86
 	bool "x86"
+	depends on ARCH_X86
 	help
 	  X86 kernel and initramfs
+
+config LINUXBOOT_ARM64
+	bool "arm64"
+	depends on ARCH_ARM64
+	select PAYLOAD_UIMAGE
+	help
+	  AARCH64 kernel and initramfs
+
 endchoice
 
 config LINUXBOOT_ARCH
 	string
 	default "amd64" if LINUXBOOT_X86_64
 	default "386" if LINUXBOOT_X86
+	default "arm64" if LINUXBOOT_ARM64
 
 choice
 	prompt "Kernel version"
@@ -61,6 +72,13 @@
 	help
 	  Add your own kernel command-line arguments.
 
+config LINUXBOOT_DTB_FILE
+	string "Compiled devicetree file"
+	depends on LINUXBOOT_ARM64
+	default ""
+	help
+	  Add your own devicetree blob.
+
 config PAYLOAD_FILE
 	default "payloads/external/LinuxBoot/linuxboot/kernel-image"
 
@@ -107,6 +125,7 @@
 
 config PAYLOAD_USERSPACE
 	string ""
+	depends on ARCH_X86
 	default "payloads/external/LinuxBoot/linuxboot/initramfs.cpio.xz"
 
 endif
diff --git a/payloads/external/LinuxBoot/Kconfig.name b/payloads/external/LinuxBoot/Kconfig.name
index b7b1085..18438c7 100644
--- a/payloads/external/LinuxBoot/Kconfig.name
+++ b/payloads/external/LinuxBoot/Kconfig.name
@@ -14,7 +14,7 @@
 
 config PAYLOAD_LINUXBOOT
 	bool "LinuxBoot"
-	depends on ARCH_X86
+	depends on ARCH_X86 || ARCH_ARM64
 	help
 	  Select this option if you want to build a coreboot image
 	  with a LinuxBoot payload. If you don't know what this is
diff --git a/payloads/external/LinuxBoot/Makefile b/payloads/external/LinuxBoot/Makefile
index 10ad0c3..e0ef998 100644
--- a/payloads/external/LinuxBoot/Makefile
+++ b/payloads/external/LinuxBoot/Makefile
@@ -17,9 +17,30 @@
 kernel_dir=$(project_dir)/kernel
 
 unexport $(COREBOOT_EXPORTS)
+unexport MAKEFLAGS
+
+XGCC:=$(PWD)/util/crossgcc/xgcc/bin
+ifeq ($(CONFIG_LINUXBOOT_ARCH),386)
+CROSS_COMPILE?=$(XGCC)/i386-linux-
+ARCH?=x86
+else ifeq ($(CONFIG_LINUXBOOT_ARCH),amd64)
+CROSS_COMPILE?=$(XGCC)/x86_64-linux-
+ARCH?=x86_64
+else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64)
+CROSS_COMPILE?=$(XGCC)/aarch64-linux-
+ARCH?=arm64
+endif
+
+OBJCOPY:=$(CROSS_COMPILE)objcopy
 
 all: payload
 
+toolchain:
+	if [[ ! -x "$(CROSS_COMPILE)gcc" ]]; then \
+	echo "Toolchain '$(CROSS_COMPILE)*' is missing."; \
+	exit 1; \
+	fi
+
 $(kernel_dir)/.config:
 	echo "    WWW        Download Linux $(CONFIG_LINUXBOOT_KERNEL_VERSION)"
 	mkdir -p $(kernel_dir)
@@ -36,23 +57,44 @@
 	cp x86/defconfig $(kernel_dir)/.config
 else ifeq ($(CONFIG_LINUXBOOT_ARCH),amd64)
 	cp x86_64/defconfig $(kernel_dir)/.config
+else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64)
+	cp arm64/defconfig $(kernel_dir)/.config
 endif
 
-$(project_dir)/kernel-image: config
+ifneq (,$(filter $(CONFIG_LINUXBOOT_ARCH),386 amd64))
+$(kernel_dir)/arch/x86/boot/bzImage: config toolchain
+else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64)
+$(kernel_dir)/vmlinux: config toolchain
+endif
 	echo "    MAKE       Kernel $(CONFIG_LINUXBOOT_KERNEL_VERSION)"
-	$(MAKE) -C $(kernel_dir) olddefconfig
-	$(MAKE) -C $(kernel_dir) -j $(CPUS)
-ifeq ($(CONFIG_LINUXBOOT_ARCH),386)
-	cp $(kernel_dir)/arch/x86/boot/bzImage $(project_dir)/kernel-image
-else ifeq ($(CONFIG_LINUXBOOT_ARCH),amd64)
-	cp $(kernel_dir)/arch/x86/boot/bzImage $(project_dir)/kernel-image
+	$(MAKE) -C $(kernel_dir) olddefconfig CROSS_COMPILE=$(CROSS_COMPILE) ARCH=$(ARCH)
+	$(MAKE) -C $(kernel_dir) -j $(CPUS) CROSS_COMPILE=$(CROSS_COMPILE) ARCH=$(ARCH)
+
+ifneq (,$(filter $(CONFIG_LINUXBOOT_ARCH),386 amd64))
+$(project_dir)/kernel-image: $(kernel_dir)/arch/x86/boot/bzImage
+	cp $< $@
+else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64)
+$(project_dir)/vmlinux.bin: $(kernel_dir)/vmlinux
+	$(OBJCOPY) -O binary $< $@
+
+$(project_dir)/target.dtb: $(CONFIG_LINUXBOOT_DTB_FILE)
+	cp $< $@
+
+$(project_dir)/kernel-image: $(project_dir)/vmlinux.bin $(project_dir)/../arm64/kernel_fdt.its $(project_dir)/target.dtb $(project_dir)/initramfs.cpio.xz
+	cp $(project_dir)/../arm64/kernel_fdt.its $(project_dir)
+	mkimage -f $(project_dir)/kernel_fdt.its $@
 endif
 
-payload: $(project_dir)/kernel-image
 ifeq ($(CONFIG_LINUXBOOT_UROOT),y)
+$(project_dir)/initramfs.cpio.xz:
 	$(MAKE) -f targets/u-root.mk
+else
+$(project_dir)/initramfs.cpio.xz:
+	echo "Building without u-root support"
 endif
 
+payload: $(project_dir)/kernel-image $(project_dir)/initramfs.cpio.xz
+
 clean:
 	if [ -d "$(kernel_dir)" ]; then make -C $(kernel_dir) clean; fi
 	rm -f $(project_dir)/initramfs.cpio.xz
@@ -60,4 +102,4 @@
 distclean:
 	rm -rf $(project_dir)
 
-.PHONY: config patch payload clean distclean clone fetch all
+.PHONY: config patch payload clean distclean clone fetch all toolchain
diff --git a/payloads/external/LinuxBoot/arm64/defconfig b/payloads/external/LinuxBoot/arm64/defconfig
new file mode 100644
index 0000000..fd7bac4
--- /dev/null
+++ b/payloads/external/LinuxBoot/arm64/defconfig
@@ -0,0 +1,184 @@
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IRQ_TIME_ACCOUNTING=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_NUMA_BALANCING=y
+CONFIG_USER_NS=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_GZIP is not set
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_KALLSYMS_ALL=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_JUMP_LABEL=y
+# CONFIG_BLK_DEBUG_FS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_MQ_IOSCHED_DEADLINE is not set
+# CONFIG_MQ_IOSCHED_KYBER is not set
+CONFIG_ARCH_THUNDER=y
+CONFIG_ARCH_THUNDER2=y
+CONFIG_ARCH_UNIPHIER=y
+CONFIG_ARCH_VEXPRESS=y
+CONFIG_ARM64_VA_BITS_48=y
+CONFIG_SCHED_MC=y
+CONFIG_NR_CPUS=8
+CONFIG_HOTPLUG_CPU=y
+CONFIG_NUMA=y
+CONFIG_PREEMPT=y
+# CONFIG_COMPACTION is not set
+CONFIG_KSM=y
+CONFIG_CMA=y
+CONFIG_SECCOMP=y
+# CONFIG_ARM64_VHE is not set
+# CONFIG_EFI is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_BINFMT_SCRIPT is not set
+# CONFIG_SUSPEND is not set
+CONFIG_CPU_IDLE=y
+CONFIG_ARM_CPUIDLE=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_DMA_CMA=y
+CONFIG_BRCMSTB_GISB_ARB=y
+# CONFIG_BLK_DEV is not set
+CONFIG_SRAM=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_SCSI_SAS_LIBSAS=y
+CONFIG_INPUT_POLLDEV=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_KEYBOARD_GPIO=y
+CONFIG_KEYBOARD_CROS_EC=y
+CONFIG_INPUT_MISC=y
+# CONFIG_SERIO_SERPORT is not set
+CONFIG_SERIO_AMBAKMI=y
+CONFIG_LEGACY_PTY_COUNT=16
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_8250_UNIPHIER=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_XILINX_PS_UART=y
+CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
+CONFIG_I2C_DESIGNWARE_PLATFORM=y
+CONFIG_I2C_RK3X=y
+CONFIG_I2C_UNIPHIER_F=y
+CONFIG_I2C_CROS_EC_TUNNEL=y
+CONFIG_I2C_SLAVE=y
+# CONFIG_PINCTRL_UNIPHIER is not set
+CONFIG_GPIO_DWAPB=y
+CONFIG_GPIO_PL061=y
+CONFIG_GPIO_UNIPHIER=y
+CONFIG_GPIO_XGENE=y
+CONFIG_GPIO_PCA953X=y
+CONFIG_GPIO_PCA953X_IRQ=y
+CONFIG_GPIO_MAX77620=y
+CONFIG_POWER_RESET_BRCMSTB=y
+CONFIG_POWER_RESET_XGENE=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_SYSCON_REBOOT_MODE=y
+CONFIG_BATTERY_BQ27XXX=y
+# CONFIG_HWMON is not set
+CONFIG_MFD_CROS_EC=y
+CONFIG_MFD_CROS_EC_I2C=y
+CONFIG_MFD_HI6421_PMIC=y
+CONFIG_MFD_MAX77620=y
+CONFIG_MFD_RK808=y
+CONFIG_MFD_SEC_CORE=y
+CONFIG_FB=y
+CONFIG_FB_ARMCLCD=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+# CONFIG_USB_SUPPORT is not set
+CONFIG_SYNC_FILE=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_COMMON_CLK_RK808=y
+CONFIG_COMMON_CLK_SCPI=y
+CONFIG_COMMON_CLK_CS2000_CP=y
+CONFIG_COMMON_CLK_S2MPS11=y
+CONFIG_CLK_QORIQ=y
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_MAILBOX=y
+CONFIG_ARM_MHU=y
+CONFIG_PLATFORM_MHU=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_SOC_BRCMSTB=y
+CONFIG_EXTCON=y
+CONFIG_EXTCON_USB_GPIO=y
+CONFIG_PHY_XGENE=y
+CONFIG_TEE=y
+CONFIG_OPTEE=y
+CONFIG_ARM_SCPI_PROTOCOL=y
+# CONFIG_ARM_SCPI_POWER_DOMAIN is not set
+CONFIG_GOOGLE_FIRMWARE=y
+CONFIG_GOOGLE_COREBOOT_TABLE_OF=y
+CONFIG_GOOGLE_MEMCONSOLE_COREBOOT=y
+CONFIG_GOOGLE_VPD=y
+# CONFIG_MANDATORY_FILE_LOCKING is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+CONFIG_TMPFS=y
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+# CONFIG_FTRACE is not set
+CONFIG_MEMTEST=y
+CONFIG_KEYS=y
+CONFIG_SECURITY=y
+CONFIG_CRYPTO_ECDH=y
+CONFIG_CRYPTO_CTR=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_CMAC=y
+CONFIG_CRYPTO_GHASH=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_SHA512=y
+CONFIG_CRYPTO_ARC4=y
+CONFIG_CRYPTO_DES=y
+CONFIG_CRYPTO_ANSI_CPRNG=y
+CONFIG_ASYMMETRIC_KEY_TYPE=y
+CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
+CONFIG_X509_CERTIFICATE_PARSER=y
+CONFIG_PKCS7_MESSAGE_PARSER=y
+CONFIG_SYSTEM_TRUSTED_KEYRING=y
+CONFIG_ARM64_CRYPTO=y
+CONFIG_CRYPTO_SHA512_ARM64=y
+CONFIG_CRYPTO_SHA1_ARM64_CE=y
+CONFIG_CRYPTO_SHA2_ARM64_CE=y
+CONFIG_CRYPTO_GHASH_ARM64_CE=y
+CONFIG_CRYPTO_CRCT10DIF_ARM64_CE=y
+CONFIG_CRYPTO_CRC32_ARM64_CE=y
+CONFIG_CRYPTO_AES_ARM64_CE_CCM=y
+CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
+CONFIG_CRYPTO_CHACHA20_NEON=y
+CONFIG_CRYPTO_AES_ARM64_BS=y
+CONFIG_CRC16=y
+CONFIG_CRC_T10DIF=y
+CONFIG_CRC_ITU_T=y
+CONFIG_CRC7=y
+CONFIG_LIBCRC32C=y
diff --git a/payloads/external/LinuxBoot/arm64/kernel_fdt.its b/payloads/external/LinuxBoot/arm64/kernel_fdt.its
new file mode 100644
index 0000000..f078395
--- /dev/null
+++ b/payloads/external/LinuxBoot/arm64/kernel_fdt.its
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2017 Facebook Inc.
+ * Simple U-Boot uImage source file containing a single kernel and FDT blob
+ */
+
+/dts-v1/;
+
+/ {
+	description = "Simple image with single Linux kernel and FDT blob";
+	#address-cells = <1>;
+
+	images {
+		kernel {
+			description = "Vanilla Linux kernel";
+			data = /incbin/("vmlinux.bin");
+			type = "kernel";
+			arch = "arm64";
+			os = "linux";
+			compression = "none";
+			load = <10000000>;
+			entry = <10000000>;
+			hash-1 {
+				algo = "crc32";
+			};
+			hash-2 {
+				algo = "sha1";
+			};
+			hash-3 {
+				algo = "sha256";
+			};
+		};
+		fdt-1 {
+			description = "Flattened Device Tree blob";
+			data = /incbin/("target.dtb");
+			type = "flat_dt";
+			arch = "arm64";
+			compression = "none";
+			hash-1 {
+				algo = "crc32";
+			};
+			hash-2 {
+				algo = "sha1";
+			};
+			hash-3 {
+				algo = "sha256";
+			};
+		};
+		ramdisk-1 {
+                        description = "Compressed Initramfs";
+                        data = /incbin/("initramfs.cpio.xz");
+                        type = "ramdisk";
+                        arch = "arm64";
+                        os = "linux";
+                        compression = "none";
+                        load = <00000000>;
+                        entry = <00000000>;
+                        hash-1 {
+                                algo = "sha1";
+                        };
+                        hash-2 {
+                                algo = "sha256";
+                        };
+		};
+	};
+
+	configurations {
+		default = "conf-1";
+		conf-1 {
+			description = "Boot Linux kernel with FDT blob and u-root";
+			kernel = "kernel";
+			fdt = "fdt-1";
+			ramdisk = "ramdisk-1";
+		};
+	};
+};
diff --git a/payloads/external/LinuxBoot/targets/u-root.mk b/payloads/external/LinuxBoot/targets/u-root.mk
index 9b0e568..4c2994c 100644
--- a/payloads/external/LinuxBoot/targets/u-root.mk
+++ b/payloads/external/LinuxBoot/targets/u-root.mk
@@ -52,8 +52,11 @@
 		done;,true;) \
 	fi
 
-$(project_dir)/initramfs.cpio.xz: checkout
-	cd $(uroot_dir); GOARCH=$(CONFIG_LINUXBOOT_ARCH) GOPATH=$(go_path_dir) go build u-root.go
+$(uroot_dir)/u-root: $(uroot_dir)/u-root.go
+	echo "    GO        u-root"
+	cd $(uroot_dir); GOPATH=$(go_path_dir) go build u-root.go
+
+$(project_dir)/initramfs.cpio.xz: checkout $(uroot_dir)/u-root
 	echo "    MAKE       u-root $(CONFIG_LINUXBOOT_UROOT_VERSION)"
 ifneq ($(CONFIG_LINUXBOOT_UROOT_COMMANDS),)
 ifneq ($(CONFIG_LINUXBOOT_UROOT_FILES),)
diff --git a/payloads/external/Makefile.inc b/payloads/external/Makefile.inc
index 3943db9..6ce5f1e 100644
--- a/payloads/external/Makefile.inc
+++ b/payloads/external/Makefile.inc
@@ -33,10 +33,14 @@
 endif
 
 ifeq ($(CONFIG_PAYLOAD_LINUXBOOT),y)
-ifneq ($(strip $(call strip_quotes,$(CONFIG_LINUXBOOT_KERNEL_COMMANDLINE))),)
+  ifeq ($(CONFIG_ARCH_X86),y)
+    ifneq ($(strip $(call strip_quotes,$(CONFIG_LINUXBOOT_KERNEL_COMMANDLINE))),)
       ADDITIONAL_PAYLOAD_CONFIG+=-C $(CONFIG_LINUXBOOT_KERNEL_COMMANDLINE)
-endif
-ADDITIONAL_PAYLOAD_CONFIG+=-I $(CONFIG_PAYLOAD_USERSPACE)
+    endif
+    ifneq ($(strip $(call strip_quotes,$(CONFIG_PAYLOAD_USERSPACE))),)
+      ADDITIONAL_PAYLOAD_CONFIG+=-I $(strip $(call strip_quotes,$(CONFIG_PAYLOAD_USERSPACE)))
+    endif
+  endif
 endif
 
 ifeq ($(CONFIG_PAYLOAD_LINUX),y)
@@ -253,16 +257,6 @@
 
 linuxboot:
 	$(MAKE) -C payloads/external/LinuxBoot \
-		HOSTCC="$(HOSTCC)" \
-		CC="$(HOSTCC)" \
-		GCC_CC_x86_32=$(GCC_CC_x86_32) \
-		GCC_CC_x86_64=$(GCC_CC_x86_64) \
-		GCC_CC_arm=$(GCC_CC_arm) \
-		GCC_CC_arm64=$(GCC_CC_arm64) \
-		OBJCOPY_x86_32=$(OBJCOPY_x86_32) \
-		OBJCOPY_x86_64=$(OBJCOPY_x86_64) \
-		OBJCOPY_arm=$(OBJCOPY_arm) \
-		OBJCOPY_arm64=$(OBJCOPY_arm64) \
 		CPUS=$(CPUS) \
 		CONFIG_LINUXBOOT_KERNEL_VERSION=$(CONFIG_LINUXBOOT_KERNEL_VERSION) \
 		CONFIG_LINUXBOOT_KERNEL_CONFIGFILE=$(CONFIG_LINUXBOOT_KERNEL_CONFIGFILE) \
@@ -271,7 +265,9 @@
 		CONFIG_LINUXBOOT_UROOT_COMMANDS="$(CONFIG_LINUXBOOT_UROOT_COMMANDS)" \
 		CONFIG_LINUXBOOT_ARCH=$(CONFIG_LINUXBOOT_ARCH) \
 		CONFIG_LINUXBOOT_UROOT=$(CONFIG_LINUXBOOT_UROOT) \
-		CONFIG_LINUXBOOT_UROOT_FILES=$(CONFIG_LINUXBOOT_UROOT_FILES)
+		CONFIG_LINUXBOOT_UROOT_FILES=$(CONFIG_LINUXBOOT_UROOT_FILES) \
+		CONFIG_LINUXBOOT_DTB_FILE=$(CONFIG_LINUXBOOT_DTB_FILE)
+
 
 payloads/external/LinuxBoot/linuxboot/kernel-image: linuxboot
 payloads/external/LinuxBoot/linuxboot/initramfs.cpio.xz: linuxboot

-- 
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I9a0cc248283432fb2384956ca55e687d4127398c
Gerrit-Change-Number: 25152
Gerrit-PatchSet: 1
Gerrit-Owner: Patrick Rudolph <patrick.rudolph at 9elements.com>
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