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

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Message-ID: <ac8f991f5c3e0b5de8dea6b187e1daca198b4677.camel@wdc.com>
Date:   Fri, 21 Dec 2018 23:03:21 +0000
From:   Alistair Francis <Alistair.Francis@....com>
To:     "paul.walmsley@...ive.com" <paul.walmsley@...ive.com>
CC:     "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, 2018-12-21 at 14:34 -0800, Paul Walmsley wrote:
> 
> On Fri, 21 Dec 2018, Alistair Francis wrote:
> 
> > On Fri, 2018-12-21 at 11:27 -0800, Paul Walmsley wrote:
> > > 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.
> > 
> > Agreed, the only problem is that the device tree comes from the
> > boards
> > firmware at the moment.
> 
> The switchover is in progress:
> 
> https://lore.kernel.org/linux-riscv/41dac7a1-3f66-6a3f-8a68-206688e5bd9e@sifive.com/T/#t

Great! I didn't know it was in progress.

Alistair

> 
> 
> - Paul
>