From patchwork Wed May 16 03:38:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Wu X-Patchwork-Id: 10402483 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 124B1601E9 for ; Wed, 16 May 2018 03:40:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 01A6328720 for ; Wed, 16 May 2018 03:40:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E4D3828732; Wed, 16 May 2018 03:40:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.4 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, MAILING_LIST_MULTI, RCVD_IN_SORBS_WEB autolearn=no version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4636E28720 for ; Wed, 16 May 2018 03:40:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=sutLec0HSfOW7J1UvG3tgY999dmGd2vwXU0TnosLFnQ=; b=D43 K3b69pz2Vs+sm4tTxs00i8ba6iEz3/Cdn/sqibO6YoYEStWPqsG23mUX8zdN0x2d4J2JiCR5SFu/Z ahcGzn6/N93tVLgd9whtuZT/8eazxL4qx1414Fjv/k0/mUB7l/tk2VWMwe+2jLY/qlCxgXHWsgY20 DDMYYMXbPzcDmsl5h8TGkZ2RdHoP3Gqg9HmffnMfvOCO3oJbx6ofT50tvS1TfRZDW73axoVg8aEGy H6zvFxb2Xobn61BxVNXn0SCOTTcQlFbK01LKgmlSqHZeCH+anSNjXEefWZmupkXRrav8m9ge9Hhta UPQrUI6T6aiGwk3AVvJB1qcDCBO0Ydw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fInI9-00009m-KZ; Wed, 16 May 2018 03:39:53 +0000 Received: from regular1.263xmail.com ([211.150.99.133]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fInHX-0007s2-O7; Wed, 16 May 2018 03:39:18 +0000 Received: from david.wu?rock-chips.com (unknown [192.168.167.234]) by regular1.263xmail.com (Postfix) with ESMTP id CC7AF914C; Wed, 16 May 2018 11:38:54 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id A8A5939A; Wed, 16 May 2018 11:38:47 +0800 (CST) X-IP-DOMAINF: 1 X-RL-SENDER: david.wu@rock-chips.com X-FST-TO: davem@davemloft.net X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: david.wu@rock-chips.com X-UNIQUE-TAG: <03dbefe39f5831fa4601a98379d18885> X-ATTACHMENT-NUM: 0 X-SENDER: wdc@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 10943TLJMAH; Wed, 16 May 2018 11:38:53 +0800 (CST) From: David Wu To: davem@davemloft.net, heiko@sntech.de, robh+dt@kernel.org Subject: [PATCH] ethernet: stmmac: dwmac-rk: Add GMAC support for px30 Date: Wed, 16 May 2018 11:38:45 +0800 Message-Id: <1526441925-12654-1-git-send-email-david.wu@rock-chips.com> X-Mailer: git-send-email 2.7.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180515_203916_300583_497E3016 X-CRM114-Status: GOOD ( 16.09 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, huangtao@rock-chips.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, David Wu , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add constants and callback functions for the dwmac on px30 soc. The base structure is the same, but registers and the bits in them moved slightly, and add the clk_mac_speed for the select of mac speed. Signed-off-by: David Wu --- .../devicetree/bindings/net/rockchip-dwmac.txt | 1 + drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 64 ++++++++++++++++++++++ 2 files changed, 65 insertions(+) diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt index 9c16ee2..3b71da7 100644 --- a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt +++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt @@ -4,6 +4,7 @@ The device node has following properties. Required properties: - compatible: should be "rockchip,-gamc" + "rockchip,px30-gmac": found on PX30 SoCs "rockchip,rk3128-gmac": found on RK312x SoCs "rockchip,rk3228-gmac": found on RK322x SoCs "rockchip,rk3288-gmac": found on RK3288 SoCs diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c index 13133b3..4b2ab71 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c @@ -61,6 +61,7 @@ struct rk_priv_data { struct clk *mac_clk_tx; struct clk *clk_mac_ref; struct clk *clk_mac_refout; + struct clk *clk_mac_speed; struct clk *aclk_mac; struct clk *pclk_mac; struct clk *clk_phy; @@ -83,6 +84,64 @@ struct rk_priv_data { (((tx) ? soc##_GMAC_TXCLK_DLY_ENABLE : soc##_GMAC_TXCLK_DLY_DISABLE) | \ ((rx) ? soc##_GMAC_RXCLK_DLY_ENABLE : soc##_GMAC_RXCLK_DLY_DISABLE)) +#define PX30_GRF_GMAC_CON1 0X0904 + +/* PX30_GRF_GMAC_CON1 */ +#define PX30_GMAC_PHY_INTF_SEL_RMII (GRF_CLR_BIT(4) | GRF_CLR_BIT(5) | \ + GRF_BIT(6)) +#define PX30_GMAC_SPEED_10M GRF_CLR_BIT(2) +#define PX30_GMAC_SPEED_100M GRF_BIT(2) + +static void px30_set_to_rmii(struct rk_priv_data *bsp_priv) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + regmap_write(bsp_priv->grf, PX30_GRF_GMAC_CON1, + PX30_GMAC_PHY_INTF_SEL_RMII); +} + +static void px30_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed) +{ + struct device *dev = &bsp_priv->pdev->dev; + int ret; + + if (IS_ERR(bsp_priv->clk_mac_speed)) { + dev_err(dev, "%s: Missing clk_mac_speed clock\n", __func__); + return; + } + + if (speed == 10) { + regmap_write(bsp_priv->grf, PX30_GRF_GMAC_CON1, + PX30_GMAC_SPEED_10M); + + ret = clk_set_rate(bsp_priv->clk_mac_speed, 2500000); + if (ret) + dev_err(dev, "%s: set clk_mac_speed rate 2500000 failed: %d\n", + __func__, ret); + } else if (speed == 100) { + regmap_write(bsp_priv->grf, PX30_GRF_GMAC_CON1, + PX30_GMAC_SPEED_100M); + + ret = clk_set_rate(bsp_priv->clk_mac_speed, 25000000); + if (ret) + dev_err(dev, "%s: set clk_mac_speed rate 25000000 failed: %d\n", + __func__, ret); + + } else { + dev_err(dev, "unknown speed value for RMII! speed=%d", speed); + } +} + +static const struct rk_gmac_ops px30_ops = { + .set_to_rmii = px30_set_to_rmii, + .set_rmii_speed = px30_set_rmii_speed, +}; + #define RK3128_GRF_MAC_CON0 0x0168 #define RK3128_GRF_MAC_CON1 0x016c @@ -1042,6 +1101,10 @@ static int rk_gmac_clk_init(struct plat_stmmacenet_data *plat) } } + bsp_priv->clk_mac_speed = devm_clk_get(dev, "clk_mac_speed"); + if (IS_ERR(bsp_priv->clk_mac_speed)) + dev_err(dev, "cannot get clock %s\n", "clk_mac_speed"); + if (bsp_priv->clock_input) { dev_info(dev, "clock input from PHY\n"); } else { @@ -1424,6 +1487,7 @@ static int rk_gmac_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(rk_gmac_pm_ops, rk_gmac_suspend, rk_gmac_resume); static const struct of_device_id rk_gmac_dwmac_match[] = { + { .compatible = "rockchip,px30-gmac", .data = &px30_ops }, { .compatible = "rockchip,rk3128-gmac", .data = &rk3128_ops }, { .compatible = "rockchip,rk3228-gmac", .data = &rk3228_ops }, { .compatible = "rockchip,rk3288-gmac", .data = &rk3288_ops },