From ce534677cbe8f3dbcb86895c378a2b59b2107a32 Mon Sep 17 00:00:00 2001 From: Drew Fustini Date: Tue, 15 Jun 2021 22:03:39 -0700 Subject: [PATCH] boot/uboot: introduce BR2_TARGET_UBOOT_FORMAT_DTB If U-Boot CONFIG_OF_SEPARATE is defined [1], then the device tree will be built and placed in a u-boot.dtb file alongside u-boot.bin. When BR2_TARGET_UBOOT_FORMAT_DTB is enabled, buildroot will copy u-boot.dtb to $(BINARIES_DIR). This is useful for RISC-V platforms that want to build OpenSBI with an external DTB by using FW_FDT_PATH [2]. [1] https://github.com/u-boot/u-boot/blob/master/doc/README.fdt-control [2] https://github.com/riscv/opensbi/blob/master/docs/firmware/fw.md Reviewed-by: Alistair Francis Reviewed-by: Bin Meng Signed-off-by: Drew Fustini Signed-off-by: Thomas Petazzoni --- boot/uboot/Config.in | 3 +++ boot/uboot/uboot.mk | 4 ++++ 2 files changed, 7 insertions(+) diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in index 58e0a85803..0854fb13cc 100644 --- a/boot/uboot/Config.in +++ b/boot/uboot/Config.in @@ -252,6 +252,9 @@ config BR2_TARGET_UBOOT_FORMAT_BIN bool "u-boot.bin" default y +config BR2_TARGET_UBOOT_FORMAT_DTB + bool "u-boot.dtb" + config BR2_TARGET_UBOOT_FORMAT_DTB_BIN bool "u-boot-dtb.bin" diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk index a8a8bedc01..9c2261963d 100644 --- a/boot/uboot/uboot.mk +++ b/boot/uboot/uboot.mk @@ -48,6 +48,10 @@ ifeq ($(BR2_TARGET_UBOOT_FORMAT_BIN),y) UBOOT_BINS += u-boot.bin endif +ifeq ($(BR2_TARGET_UBOOT_FORMAT_DTB),y) +UBOOT_BINS += u-boot.dtb +endif + ifeq ($(BR2_TARGET_UBOOT_FORMAT_ELF),y) UBOOT_BINS += u-boot # To make elf usable for debuging on ARC use special target -- 2.30.2