From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yash Shah Subject: Re: [PATCH 0/2] net: macb: Add support for SiFive FU540-C000 Date: Fri, 24 May 2019 10:09:58 +0530 Message-ID: References: <1558611952-13295-1-git-send-email-yash.shah@sifive.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Andreas Schwab Cc: davem@davemloft.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, nicolas.ferre@microchip.com, Palmer Dabbelt , aou@eecs.berkeley.edu, ynezz@true.cz, Paul Walmsley , Sachin Ghadi List-Id: devicetree@vger.kernel.org Hi Andreas, On Thu, May 23, 2019 at 6:19 PM Andreas Schwab wrote: > > On Mai 23 2019, Yash Shah wrote: > > > On FU540, the management IP block is tightly coupled with the Cadence > > MACB IP block. It manages many of the boundary signals from the MACB IP > > This patchset controls the tx_clk input signal to the MACB IP. It > > switches between the local TX clock (125MHz) and PHY TX clocks. This > > is necessary to toggle between 1Gb and 100/10Mb speeds. > > Doesn't work for me: > > [ 365.842801] macb: probe of 10090000.ethernet failed with error -17 > Make sure you have applied all the patches needed for testing found at dev/yashs/ethernet branch of: https://github.com/yashshah7/riscv-linux.git In addition to that, make sure in your kernel config GPIO_SIFIVE=y In v2 of this patch, I will add this select GPIO_SIFIVE config in the Cadence Kconfig file. - Yash