From mboxrd@z Thu Jan 1 00:00:00 1970 From: matthias.bgg@kernel.org Subject: [PATCH v1 0/3] This series adds ethernet support for RPi4. Date: Fri, 11 Oct 2019 20:48:18 +0200 Message-ID: <20191011184822.866-1-matthias.bgg@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: Sender: netdev-owner@vger.kernel.org To: Florian Fainelli , "David S . Miller" Cc: Nicolas Saenz Julienne , Matthias Brugger , linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Stefan Wahren , Matthias Brugger , Doug Berger , Eric Anholt , Mark Rutland , Rob Herring , bcm-kernel-feedback-list@broadcom.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org List-Id: devicetree@vger.kernel.org From: Matthias Brugger Raspberry Pi 4 uses the broadcom genet chip in version five. This chip has a dma controller integrated. Up to now the maximal burst size was hard-coded to 0x10. But it turns out that Raspberry Pi 4 does only work with the smaller maximal burst size of 0x8. This series adds a new optional property to the driver, dma-burst-sz. The very same property is already used by another drivers in the kernel. Matthias Brugger (3): dt-bindings: net: bcmgenet add property for max DMA burst size net: bcmgenet: use optional max DMA burst size property ARM: dts: bcm2711: Enable GENET support for the RPi4 .../devicetree/bindings/net/brcm,bcmgenet.txt | 2 ++ arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 22 +++++++++++++++++++ arch/arm/boot/dts/bcm2711.dtsi | 18 +++++++++++++++ .../net/ethernet/broadcom/genet/bcmgenet.c | 13 +++++++++-- .../net/ethernet/broadcom/genet/bcmgenet.h | 1 + 5 files changed, 54 insertions(+), 2 deletions(-) -- 2.23.0