| Message ID | 20210616050341.510702-2-drew@beagleboard.org |
|---|---|
| State | Accepted |
| Headers | show |
| Series | beaglev: enable opensbi generic platform | expand |
On Tue, 15 Jun 2021 22:03:39 -0700 Drew Fustini <drew@beagleboard.org> wrote: > 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 $(BINARIES_DIR). > > This is useful for RISC-V platforms that want to build OpenSBI with an > external DTB by using FW_FDT_PATH [2]. > > [1] https://github.com/u-boot/u-boot/blob/master/doc/README.fdt-control > [2] https://github.com/riscv/opensbi/blob/master/docs/firmware/fw.md > > Reviewed-by: Alistair Francis <alistair.francis@wdc.com> > Reviewed-by: Bin Meng <bmeng.cn@gmail.com> > Signed-off-by: Drew Fustini <drew@beagleboard.org> > --- > boot/uboot/Config.in | 3 +++ > boot/uboot/uboot.mk | 4 ++++ > 2 files changed, 7 insertions(+) This new option is not exactly another U-Boot format, u-boot.dtb does not include the U-Boot code itself. But oh well, your solution is very simple, and fits well with what already exists, so I've applied. Thanks! Thomas
diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in index 00c667412006..44a16d892a60 100644 --- a/boot/uboot/Config.in +++ b/boot/uboot/Config.in @@ -252,6 +252,9 @@ config BR2_TARGET_UBOOT_FORMAT_BIN bool "u-boot.bin" default y +config BR2_TARGET_UBOOT_FORMAT_DTB + bool "u-boot.dtb" + config BR2_TARGET_UBOOT_FORMAT_DTB_BIN bool "u-boot-dtb.bin" diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk index dbe82e65b17e..923fd0c1d46c 100644 --- a/boot/uboot/uboot.mk +++ b/boot/uboot/uboot.mk @@ -48,6 +48,10 @@ ifeq ($(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