[PATCH v11 17/18] configs: fu540: Add config options for U-Boot SPL

[Jagan Teki]

On Tue, May 19, 2020 at 12:35 PM Pragnesh Patel
<pragnesh.patel at sifive.com> wrote:
>
> With sifive_fu540_defconfig:
>
> User can use FSBL or u-boot-spl.bin anyone at a time.
>
> For FSBL,
> fsbl->fw_payload.bin (opensbi + U-Boot)
>
> For u-boot-spl.bin,
> u-boot-spl.bin->FIT image (opensbi + U-Boot proper + dtb)
>
> U-Boot SPL will be loaded by ZSBL from SD card (replace fsbl.bin with
> u-boot-spl.bin) and runs in L2 LIM in machine mode and then load FIT
> image u-boot.itb from SD card into RAM.
>
> U-Boot SPL expects u-boot.itb FIT image at the starting of SD card sector
> number (0x822) of GUID type "2E54B353-1271-4842-806F-E436D6AF6985"
>
> Signed-off-by: Pragnesh Patel <pragnesh.patel at sifive.com>
> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
> Reviewed-by: Jagan Teki <jagan at amarulasolutions.com>
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
> ---
>  configs/sifive_fu540_defconfig |   8 ++
>  doc/board/sifive/fu540.rst     | 131 +++++++++++++++++++++++++++++++++
>  2 files changed, 139 insertions(+)
>
> diff --git a/configs/sifive_fu540_defconfig b/configs/sifive_fu540_defconfig
> index f805aacc7a..8d412f8d6a 100644
> --- a/configs/sifive_fu540_defconfig
> +++ b/configs/sifive_fu540_defconfig
> @@ -1,6 +1,11 @@
>  CONFIG_RISCV=y
> +CONFIG_SPL_GPIO_SUPPORT=y
> +CONFIG_SYS_MALLOC_F_LEN=0x3000
>  CONFIG_ENV_SIZE=0x20000
> +CONFIG_SPL_MMC_SUPPORT=y
>  CONFIG_NR_DRAM_BANKS=1
> +CONFIG_SPL=y
> +CONFIG_SPL_SPI_SUPPORT=y
>  CONFIG_TARGET_SIFIVE_FU540=y
>  CONFIG_ARCH_RV64I=y
>  CONFIG_RISCV_SMODE=y
> @@ -9,7 +14,10 @@ CONFIG_FIT=y
>  CONFIG_MISC_INIT_R=y
>  CONFIG_DISPLAY_CPUINFO=y
>  CONFIG_DISPLAY_BOARDINFO=y
> +CONFIG_SPL_SEPARATE_BSS=y
> +CONFIG_SPL_YMODEM_SUPPORT=y
>  CONFIG_OF_BOARD_FIXUP=y
>  CONFIG_DEFAULT_DEVICE_TREE="hifive-unleashed-a00"
>  CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> +CONFIG_SPL_CLK=y
>  CONFIG_DM_MTD=y
> diff --git a/doc/board/sifive/fu540.rst b/doc/board/sifive/fu540.rst
> index 610ba87074..766629ebae 100644
> --- a/doc/board/sifive/fu540.rst
> +++ b/doc/board/sifive/fu540.rst
> @@ -31,6 +31,9 @@ TODO:
>          stdout-path = "/soc/serial at 10010000:115200";
>     };
>
> +Booting from MMC using FSBL
> +---------------------------
> +
>  Building
>  --------
>
> @@ -421,3 +424,131 @@ as well.
>
>     Please press Enter to activate this console.
>     / #
> +
> +Booting from MMC using U-Boot SPL
> +---------------------------------
> +
> +Building
> +--------
> +
> +Before building U-Boot SPL, OpenSBI must be built first. OpenSBI can be
> +cloned and built for FU540 as below:
> +
> +.. code-block:: console
> +
> +       git clone https://github.com/riscv/opensbi.git
> +       cd opensbi
> +       make PLATFORM=generic FW_DYNAMIC=y

Look like explicit FW_DYNAMIC=y is optional.

> +
> +Copy OpenSBI FW_DYNAMIC image
> +(build/platform/generic/firmware/fw_dynamic.bin) into U-Boot
> +root directory
> +
> +.. code-block:: console
> +
> +       cp build/platform/generic/firmware/fw_dynamic.bin <u-boot-dir>

No copy needed here.

export OPENSBI=build/platform/generic/firmware/fw_dynamic.bin