Support for HiFive Unmatched #384
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Hi @Nanamiiiii , We'd definitely be interested in this! Please feel free to open a PR, I would love to take a look Gregor |
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Okay. |
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Dec 13, 2023
This PR adds board support for HiFive Unmatched. (#384) You can generate SD card image for unmatched using buildroot by single `make` command. It will not be available for production, but it will allow for easy testing. I checked that almost all example runs correctly, but only `attestor.ke` throw runtime error bacause the package does not include firmware image (`fw_jump.elf`) correctly. Same thing is happening with qemu target. ## New items/Changes - Add buildroot config for unmatched in `overlays/keystone/configs` - Add board specific configs/patches in `overlays/keystone/board` - Some patches in `freedom-u-sdk` & `meta-sifive` (2023.08) are included - Implement secureboot same as bootrom in u-boot. This is applied via a patch. - Unmatched's platform overrides in upstream OpenSBI is added to `sm/plat` - Add make target to flush SD card image - Other minor modifications ## Known issue Porting issue mentioned [here](https://groups.google.com/g/keystone-enclave-forum/c/6vnr6pWPZjw/m/HBeq4a5OBAAJ) is still remaining. With default `SMM_SIZE` (`0x200000`), machine hangs when switching to S-Mode entering u-boot proper (when function `sbi_hart_switch_mode` is called). In this PR, change `SMM_SIZE` to `0x80000` same as sbi domain region by passing compile flag for unmatched target. This is temporary fix. ## Remarks FU740 has waymasks same as FU540. Waymasking implemented for FU540 can be ported to FU740, I think.
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Hi, everyone.
I recently ported keystone to HiFive Unmatched in the course of my work.
Using the buildroot system, SD card image that work with Unmatched can be created with a single
makecommand. The image includes U-Boot SPL, SM, U-Boot Proper and rootfs.It is also configured to apply some of the patches included in
freedom-u-sdkandmeta-sifive.U-Boot does not implement secureboot for keystone like bootrom does here, but I have implemented the equivalent to U-Boot in the past, and I can also provide this.
Is there a demand for this porting? I would like to contribute if necessary.
Thanks.
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