From mboxrd@z Thu Jan 1 00:00:00 1970 From: antoine.tenart@free-electrons.com (Antoine Tenart) Date: Tue, 9 Sep 2014 18:36:22 +0200 Subject: [PATCH v2 5/8] net: pxa168_eth: get and set the mac address on the Ethernet controller In-Reply-To: <20140909162958.GS30828@titan.lakedaemon.net> References: <1410273848-24663-1-git-send-email-antoine.tenart@free-electrons.com> <1410273848-24663-6-git-send-email-antoine.tenart@free-electrons.com> <20140909162958.GS30828@titan.lakedaemon.net> Message-ID: <20140909163622.GA28752@kwain> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Jason, On Tue, Sep 09, 2014 at 12:29:58PM -0400, Jason Cooper wrote: > On Tue, Sep 09, 2014 at 04:44:05PM +0200, Antoine Tenart wrote: > > When changing the MAC address, in addition to updating the dev_addr in > > the net_device structure, this patch also update the MAC address > > registers (high and low) of the Ethernet controller with the new MAC. > > The address stored in these registers is used for IEEE 802.3x Ethernet > > flow control, which is already enabled. > > > > This patch also tries reading the MAC address stored in these registers > > when probing the driver, to use the MAC address set by the bootloader > > and avoid using a random one. > > Hmm, the wording here seems odd. I think the preference should be: > > 1) bootloader-supplied addr via DT > 2) addr read from device > 3) randomly generated one. I agree. I'll update that. Antoine -- Antoine T?nart, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com