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From:   Paul Walmsley <paul.walmsley@sifive.com>
Date:   Fri, 21 Dec 2018 11:27:39 -0800 (PST)
To:     Alistair Francis <Alistair.Francis@wdc.com>
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Subject: Re: [PATCH] RISC-V: defconfig: Enable Generic PCIE by default
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On Fri, 21 Dec 2018, Alistair Francis wrote:

> When the MicroSemi driver does eventually go upstream this will
> probably have to be discussed though as either the config or device
> tree will need to be edited to ensure only one PCIe device is present.

The right way to do that is to have two separate DT files: one for the 
HiFive-U board alone; the other for the HiFive-U plus the expansion board 
combo.  There shouldn't be any problems with keeping both drivers enabled 
in the defconfig.


- Paul