linux-kernel - Re: [PATCH] RISC-V: defconfig: Enable Generic PCIE by default

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Message-ID: <alpine.DEB.2.21.9999.1812211124180.777@viisi.sifive.com>
Date:   Fri, 21 Dec 2018 11:27:39 -0800 (PST)
From:   Paul Walmsley <paul.walmsley@...ive.com>
To:     Alistair Francis <Alistair.Francis@....com>
cc:     "paul.walmsley@...ive.com" <paul.walmsley@...ive.com>,
        "palmer@...ive.com" <palmer@...ive.com>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] RISC-V: defconfig: Enable Generic PCIE by default


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