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Use dts support from U-Boot via OF_SEPARATE instead of depending from opensbi.

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This would help to make the necessary changes in drivers and device trees
in U-Boot tree itself. This feature would also be helpful to not pass
dtb during opensbi builds.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Rick Chen <rick@andestech.com>
This commit is contained in:
Rick Chen 2019-12-04 14:52:46 +08:00 committed by Andes
parent b82a18549f
commit 31fbf6032d
2 changed files with 3 additions and 5 deletions
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3
configs/sifive_fu540_defconfig
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@ -7,8 +7,9 @@ CONFIG_RISCV_SMODE=y
CONFIG_DISTRO_DEFAULTS=y
CONFIG_FIT=y
CONFIG_MISC_INIT_R=y
CONFIG_DEFAULT_DEVICE_TREE="hifive-unleashed-a00"
CONFIG_DISPLAY_CPUINFO=y
CONFIG_DISPLAY_BOARDINFO=y
CONFIG_OF_PRIOR_STAGE=y
CONFIG_OF_SEPARATE=y
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_DM_MTD=y

5
doc/board/sifive/fu540.rst
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@ -58,10 +58,7 @@ firmware. We need to compile OpenSBI with below command:
.. code-block:: none
make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<path to u-boot.bin> FW_PAYLOAD_FDT_PATH=<path to hifive-unleashed-a00.dtb from Linux>
(Note: Prefer hifive-unleashed-a00.dtb from Linux-5.3 or higher)
(Note: Linux-5.2 is also fine but it does not have ethernet DT node)
make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<path to u-boot-dtb.bin>
More detailed description of steps required to build FW_PAYLOAD firmware
is beyond the scope of this document. Please refer OpenSBI documenation.