From patchwork Wed Apr 29 20:46:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Priit Laes X-Patchwork-Id: 11518355 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 469AA81 for ; Wed, 29 Apr 2020 20:46:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D7362137B for ; Wed, 29 Apr 2020 20:46:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=plaes.org header.i=@plaes.org header.b="ZA8/lHmz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727049AbgD2Uqa (ORCPT ); Wed, 29 Apr 2020 16:46:30 -0400 Received: from plaes.org ([188.166.43.21]:34982 "EHLO plaes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727093AbgD2Uq3 (ORCPT ); Wed, 29 Apr 2020 16:46:29 -0400 Received: from localhost (unknown [IPv6:2001:1530:1000:d397:940e:6b9e:3deb:3]) by plaes.org (Postfix) with ESMTPSA id 75E48411A4; Wed, 29 Apr 2020 20:46:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=plaes.org; s=mail; t=1588193187; bh=4Nyq2+q+6gFl8xdUXrX7ogdDuJtGtGSha4s+xAB0G6E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZA8/lHmzMQuXj6T6y9Xe46t1VLVwUt7NOx0b2fenM13e5PBJ+y76kicCKBrxJeRjN O50M9Ge7PhNyBmtDB9AhiDmlZwI/ywWpA+IOnpJKLjgx0yKRU2OsvKUc74S7HO3dJb BGrM91i27CuehE2tBcA8OH7/+Llt+w34t+BpsZsO6Eqe/QBFMBxbU0O6bJtj2P9SU7 3H2OkfWSvQGNNpLRnD5+OuHkXNqb3z9ACW/O1pkLlMQjZsPuvLr5XEUOmJ3vH6Khwy 7bTdYzZzMiVr/V59FeQvjldu+70AYzoxaMZWis/8DzFgOSxcyf3pn9okOU63LmbjD9 WbqKwASDZojSg== From: Priit Laes To: Maxime Ripard , Chen-Yu Tsai , Rob Herring , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-sunxi@googlegroups.com Cc: Priit Laes Subject: [PATCH v2 5/6] ARM: dts: sun7i: Use syscon-based implementation for gmac Date: Wed, 29 Apr 2020 23:46:11 +0300 Message-Id: <20200429204612.31883-6-plaes@plaes.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200429204612.31883-1-plaes@plaes.org> References: <20200429204612.31883-1-plaes@plaes.org> MIME-Version: 1.0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Use syscon-based approach to access gmac clock configuration register, instead of relying on a custom clock driver. As a bonus, we can now drop the custom clock implementation and dummy clocks making sun7i fully CCU-compatible. Signed-off-by: Priit Laes --- arch/arm/boot/dts/sun7i-a20.dtsi | 36 +++----------------------------- 1 file changed, 3 insertions(+), 33 deletions(-) diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi index ffe1d10a1a84..750962a94fad 100644 --- a/arch/arm/boot/dts/sun7i-a20.dtsi +++ b/arch/arm/boot/dts/sun7i-a20.dtsi @@ -219,37 +219,6 @@ osc32k: clk-32k { clock-frequency = <32768>; clock-output-names = "osc32k"; }; - - /* - * The following two are dummy clocks, placeholders - * used in the gmac_tx clock. The gmac driver will - * choose one parent depending on the PHY interface - * mode, using clk_set_rate auto-reparenting. - * - * The actual TX clock rate is not controlled by the - * gmac_tx clock. - */ - mii_phy_tx_clk: clk-mii-phy-tx { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <25000000>; - clock-output-names = "mii_phy_tx"; - }; - - gmac_int_tx_clk: clk-gmac-int-tx { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <125000000>; - clock-output-names = "gmac_int_tx"; - }; - - gmac_tx_clk: clk@1c20164 { - #clock-cells = <0>; - compatible = "allwinner,sun7i-a20-gmac-clk"; - reg = <0x01c20164 0x4>; - clocks = <&mii_phy_tx_clk>, <&gmac_int_tx_clk>; - clock-output-names = "gmac_tx"; - }; }; @@ -1511,11 +1480,12 @@ mali: gpu@1c40000 { gmac: ethernet@1c50000 { compatible = "allwinner,sun7i-a20-gmac"; + syscon = <&ccu>; reg = <0x01c50000 0x10000>; interrupts = ; interrupt-names = "macirq"; - clocks = <&ccu CLK_AHB_GMAC>, <&gmac_tx_clk>; - clock-names = "stmmaceth", "allwinner_gmac_tx"; + clocks = <&ccu CLK_AHB_GMAC>; + clock-names = "stmmaceth"; snps,pbl = <2>; snps,fixed-burst; snps,force_sf_dma_mode;