From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH] ARM: omap3: beagleboard-xm: dt: Add ethernet to the device tree Date: Thu, 1 Dec 2016 16:29:22 -0800 Message-ID: <20161202002921.GD3703@atomide.com> References: <1480528685-26259-1-git-send-email-laurent.pinchart@ideasonboard.com> <20161201211234.GA3703@atomide.com> <34435805.uoQ87SrZdl@avalon> <20161201214457.GC3703@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20161201214457.GC3703-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Laurent Pinchart Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, =?utf-8?Q?Beno=C3=AEt?= Cousson List-Id: devicetree@vger.kernel.org * Tony Lindgren [161201 13:45]: > * Laurent Pinchart [161201 13:37]: > > Hi Tony, > > > > On Thursday 01 Dec 2016 13:12:34 Tony Lindgren wrote: > > > * Laurent Pinchart [161130 09:58]: > > > > The Beagleboard-xM has a LAN9514 USB hub and ethernet controller, > > > > connected to port 2 of the OMAP EHCI controller. The board however has > > > > no EEPROM to store the ethernet MAC address, which is programmed by the > > > > boot loader. > > > > > > > > To allow Linux to use the same MAC address as the boot loader (or for > > > > that matter any fixed MAC address), we need a node in the device tree > > > > for the ethernet controller that the boot loader can update at runtime > > > > with a local-mac-address property. Add it, along with an alias for the > > > > ethernet controller to let the boot loader locate it easily. > > > > > > Does not seem to work here.. Do I need to set something in u-boot? > > > I'm using U-Boot 2016.09-00004-g26bb688. > > > > Some versions (possibly forked by vendors) might set the MAC address > > automatically in DT, but in my case I have the following in my boot script: > > > > tftp 0x80800000 beagle/omap3-beagle-xm.dtb > > fdt addr ${fileaddr} ${filesize} > > fdt resize > > fdt set /ocp@68000000/usbhshost@48064000/ehci@48064800/usb2@2/usbether@1 local-mac-address "[7a d2 a0 00 d1 f0]" > > OK. I just added setenv ethaddr ${usbethaddr} to my bootcmd.. Here's a similar patch for omap5-uevm. Somehow u-boot does not populate the local-mac-address on it though although set in the environment. So I had to manually do the fdt set /ocp/usbhshost@4a064000/ehci@4a064c00/usbether@3 command. Regards, Tony 8< --------------------- >>From tony Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 1 Dec 2016 12:57:24 -0800 Subject: [PATCH] ARM: dts: omap5-uevm: Allow bootloader to configure USB Ethernet MAC Note that with 9730 the wiring is different compared to 9514 found on beagleboard xm for example. On beagleboard xm we have: /sys/bus/usb/devices/1-2 hub /sys/bus/usb/devices/1-2.1 9514 While on omap5-uevm we have: /sys/bus/usb/devices/1-2 hub /sys/bus/usb/devices/1-3 9730 Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap5-uevm.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts --- a/arch/arm/boot/dts/omap5-uevm.dts +++ b/arch/arm/boot/dts/omap5-uevm.dts @@ -18,6 +18,10 @@ reg = <0 0x80000000 0 0x7f000000>; /* 2032 MB */ }; + aliases { + ethernet = ðernet; + }; + leds { compatible = "gpio-leds"; led1 { @@ -164,6 +168,23 @@ >; }; +&usbhsehci { + #address-cells = <1>; + #size-cells = <0>; + + usb2@2 { + compatible = "usb424,3503"; + reg = <2>; + #address-cells = <1>; + #size-cells = <0>; + }; + + ethernet: usbether@3 { + compatible = "usb424,9730"; + reg = <3>; + }; +}; + &wlcore { compatible = "ti,wl1837"; }; -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html