From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B314C64EB8 for ; Thu, 4 Oct 2018 12:22:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3580820877 for ; Thu, 4 Oct 2018 12:22:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3580820877 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727666AbeJDTPq (ORCPT ); Thu, 4 Oct 2018 15:15:46 -0400 Received: from mail.bootlin.com ([62.4.15.54]:35689 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727336AbeJDTPq (ORCPT ); Thu, 4 Oct 2018 15:15:46 -0400 Received: by mail.bootlin.com (Postfix, from userid 110) id 6F89120DE2; Thu, 4 Oct 2018 14:22:41 +0200 (CEST) Received: from localhost.localdomain (AAubervilliers-681-1-28-153.w90-88.abo.wanadoo.fr [90.88.148.153]) by mail.bootlin.com (Postfix) with ESMTPSA id E564020719; Thu, 4 Oct 2018 14:22:30 +0200 (CEST) From: Quentin Schulz To: alexandre.belloni@bootlin.com, ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, davem@davemloft.net, kishon@ti.com, andrew@lunn.ch, f.fainelli@gmail.com Cc: allan.nielsen@microchip.com, linux-mips@linux-mips.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, thomas.petazzoni@bootlin.com, Quentin Schulz Subject: [PATCH net-next v4 00/11] mscc: ocelot: add support for SerDes muxing configuration Date: Thu, 4 Oct 2018 14:21:57 +0200 Message-Id: <20181004122208.32272-1-quentin.schulz@bootlin.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Ocelot switch has currently an hardcoded SerDes muxing that suits only a particular use case. Any other board setup will fail to work. To prepare for upcoming boards' support that do not have the same muxing, create a PHY driver that will handle all possible cases. A SerDes can work in SGMII, QSGMII or PCIe and is also muxed to use a given port depending on the selected mode or board design. The SerDes configuration is in the middle of an address space (HSIO) that is used to configure some parts in the MAC controller driver, that is why we need to use a syscon so that we can write to the same address space from different drivers safely using regmap. This breaks backward compatibility but it's fine because there's only one board at the moment that is using what's modified in this patch series. This will break git bisect. Even though this patch series is about SerDes __muxing__ configuration, the DT node is named serdes for the simple reason that I couldn't find any mention to SerDes anywhere else from the address space handled by this driver. Thanks, Quentin v4: - add reviewed-by, - format the patch series with -M for identifying renamed files, - add parent info in DT binding of the SerDes IP, - move to macros SERDES[16]G(X) instead of multiple SERDES[16]G_[012345] constants, - move to SERDES[16]G_MAX being the last VALID macro of a type, so migrate to <= conditions instead of < when iterating, - create a SERDES_MUX_SGMII and SERDES_MUX_QSGMII macro so the muxing configurations are a tad more readable, - use a bunch of unsigned int instead of int, - return -EOPNOTSUPP for SERDES6G/PCIe until it's supported, - simplify condition when there is an error code returned by devm_of_phy_get, v3: - add Paul Burton's Acked-By on MIPS patches so that the patch series can be merged in the net tree in its entirety, v2: - use a switch case for setting the phy_mode in the SerDes driver as suggested by Andrew, - stop replacing the value of the error pointer in the SerDes driver, - use a dev_dbg for the deferring of the probe in the SerDes driver, - use constants in the Device Tree to select the SerDes macro in use with a port, - adapt the SerDes driver to use those constants, - add a header file in include/dt-bindings for the constants, - fix space/tab issue, Quentin Schulz (11): MIPS: mscc: ocelot: make HSIO registers address range a syscon dt-bindings: net: ocelot: remove hsio from the list of register address spaces net: mscc: ocelot: get HSIO regmap from syscon net: mscc: ocelot: move the HSIO header to include/soc net: mscc: ocelot: simplify register access for PLL5 configuration phy: add QSGMII and PCIE modes dt-bindings: phy: add DT binding for Microsemi Ocelot SerDes muxing MIPS: mscc: ocelot: add SerDes mux DT node dt-bindings: add constants for Microsemi Ocelot SerDes driver phy: add driver for Microsemi Ocelot SerDes muxing net: mscc: ocelot: make use of SerDes PHYs for handling their configuration .../devicetree/bindings/mips/mscc.txt | 16 + .../devicetree/bindings/net/mscc-ocelot.txt | 9 +- .../bindings/phy/phy-ocelot-serdes.txt | 43 +++ arch/mips/boot/dts/mscc/ocelot.dtsi | 19 +- drivers/net/ethernet/mscc/Kconfig | 2 + drivers/net/ethernet/mscc/ocelot.c | 16 +- drivers/net/ethernet/mscc/ocelot.h | 79 +---- drivers/net/ethernet/mscc/ocelot_board.c | 61 +++- drivers/net/ethernet/mscc/ocelot_regs.c | 93 +----- drivers/phy/Kconfig | 1 + drivers/phy/Makefile | 1 + drivers/phy/mscc/Kconfig | 11 + drivers/phy/mscc/Makefile | 5 + drivers/phy/mscc/phy-ocelot-serdes.c | 295 ++++++++++++++++++ include/dt-bindings/phy/phy-ocelot-serdes.h | 12 + include/linux/phy/phy.h | 2 + .../soc}/mscc/ocelot_hsio.h | 74 +++++ 17 files changed, 559 insertions(+), 180 deletions(-) create mode 100644 Documentation/devicetree/bindings/phy/phy-ocelot-serdes.txt create mode 100644 drivers/phy/mscc/Kconfig create mode 100644 drivers/phy/mscc/Makefile create mode 100644 drivers/phy/mscc/phy-ocelot-serdes.c create mode 100644 include/dt-bindings/phy/phy-ocelot-serdes.h rename {drivers/net/ethernet => include/soc}/mscc/ocelot_hsio.h (95%) -- 2.17.1