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platform: sifive: fu540: Add 32-bit specific fdt/payload addresses

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For testing 32-bit SiFive specific drivers with QEMU riscv32, add
32-bit specific FW_JUMP_FDT_ADDR and FW_PAYLOAD_OFFSET.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Bin Meng
2020-02-18 02:15:59 -08:00
committed by Anup Patel
parent 24c3082ea4
commit 66fb729a1e
2 changed files with 18 additions and 2 deletions
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4
docs/platform/sifive_fu540.md
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@@ -193,5 +193,9 @@ generated by QEMU, and u-boot.bin should be used as the payload image, like:
make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<u-boot_build_dir>/u-boot.bin
```
While the real hardware operates at the 64-bit mode, it's possible for QEMU to
test the 32-bit OpenSBI firmware. This can be helpful for testing 32-bit SiFive
specific drivers.
[U-Boot]: https://gitlab.denx.de/u-boot/u-boot/blob/master/doc/board/sifive/fu540.rst
[FSBL]: https://github.com/sifive/freedom-u540-c000-bootloader