Re: [PATCH 3/9] dt-bindings: riscv: Add MIPS Boston board compatible
From: Maciej W. Rozycki
Date: Thu Sep 17 2026 - 09:33:08 EST
On Tue, 15 Sep 2026, Conor Dooley wrote:
> > + oneOf:
> > + - description: Boston FPGA development board with a MIPS P8700 bitfile
>
> I'm not convinced that this is specific enough at all.
> I have absolutely no idea from this description if there's even a
> specific FPGA involved here - this could mean a bitstream used on an Altera
> platform or a Xilinx one, with totally different contents.
> I'm only happy with FPGA bitstream content being supported if it is
> versioned strictly and matches with some clear and obvious releases from
> the vendor. I cannot even find this board by googling it, let alone find
> clear information about what this could correspond to.
This stuff has been around for a decade now; cf. commit 6e62a888029b
("MIPS: generic: Support MIPS Boston development boards"). Public
resources have been scarce. Here's the best one I could track down:
<https://training.mips.com/cps_mips/Examples/MD00901_Boot-MIPS_Example_Boot_Code_for_MIPS_Cores.pdf>.
Expect disappointment, but at least there's a photo of the platform (p.
142).
Maciej