linux-kernel - Re: [PATCH v2 0/2] Add macb support for SiFive FU540-C000

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Date:   Tue, 18 Jun 2019 23:11:54 +0000
From:   Alistair Francis <Alistair.Francis@....com>
To:     "paul.walmsley@...ive.com" <paul.walmsley@...ive.com>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        "palmer@...ive.com" <palmer@...ive.com>,
        "nicolas.ferre@...rochip.com" <nicolas.ferre@...rochip.com>,
        "aou@...s.berkeley.edu" <aou@...s.berkeley.edu>,
        "yash.shah@...ive.com" <yash.shah@...ive.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "sachin.ghadi@...ive.com" <sachin.ghadi@...ive.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "ynezz@...e.cz" <ynezz@...e.cz>, "jamez@....com" <jamez@....com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "schwab@...e.de" <schwab@...e.de>,
        "troy.benjegerdes@...ive.com" <troy.benjegerdes@...ive.com>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v2 0/2] Add macb support for SiFive FU540-C000

On Mon, 2019-06-17 at 20:26 -0700, Paul Walmsley wrote:
> On Mon, 17 Jun 2019, Alistair Francis wrote:
> 
> > > The legacy M-mode U-boot handles the phy reset already, and I’ve
> > > been
> > > able to load upstream S-mode uboot as a payload via TFTP, and
> > > then 
> > > load and boot a 4.19 kernel. 
> > > 
> > > It would be nice to get this all working with 5.x, however there
> > > are
> > > still
> > > several missing pieces to really have it work well.
> > 
> > Let me know what is still missing/doesn't work and I can add it. At
> > the
> > moment the only known issue I know of is a missing SD card driver
> > in U-
> > Boot.
> 
> The DT data has changed between the non-upstream data that people 
> developed against previously, vs. the DT data that just went
> upstream 
> here:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=72296bde4f4207566872ee355950a59cbc29f852
> 
> and
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c35f1b87fc595807ff15d2834d241f9771497205
> 
> So Upstream U-Boot is going to need several patches to get things
> working 
> again.  Clock identifiers and Ethernet are two known areas.

Yep, Anup has sent patches to U-Boot and OpenSBI.

Alistair

> 
> 
> - Paul