[U-Boot] [PATCH v4 2/2] sifive: fu540: Enable OF_SEPARATE

[Rick Chen]

Hi Jagon

> From: Jagan Teki [mailto:jagan at amarulasolutions.com]
> Sent: Monday, November 18, 2019 7:30 PM
> To: Rick Jian-Zhi Chen(陳建志)
> Cc: u-boot at lists.denx.de; Jagan Teki
> Subject: [PATCH v4 2/2] sifive: fu540: Enable OF_SEPARATE
>
> Use dts support from U-Boot via OF_SEPARATE instead of depending from opensbi.
>
> 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 at amarulasolutions.com>
> ---
> Changes for v4:
> - Drop abosolete text
>
>  configs/sifive_fu540_defconfig | 3 ++-
>  doc/board/sifive/fu540.rst     | 5 +----
>  2 files changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/configs/sifive_fu540_defconfig b/configs/sifive_fu540_defconfig index 48865e5f11..979d0a0418 100644
> --- a/configs/sifive_fu540_defconfig
> +++ b/configs/sifive_fu540_defconfig
> @@ -6,6 +6,7 @@ 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
> diff --git a/doc/board/sifive/fu540.rst b/doc/board/sifive/fu540.rst index 7807f5b2c1..dd279f6a03 100644
> --- a/doc/board/sifive/fu540.rst
> +++ b/doc/board/sifive/fu540.rst
> @@ -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.
> --
> 2.18.0.321.gffc6fa0e3
>

I am trying to prepare a PR, but it encounter a conflict with the
master when applying this patch.
Can you rebase it again ?

Or if you don't mind I can modify your patch directly.

Thanks
Rick