From patchwork Tue Jan 17 06:14:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 13104204 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3C352C3DA78 for ; Tue, 17 Jan 2023 06:15:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235685AbjAQGPy (ORCPT ); Tue, 17 Jan 2023 01:15:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56162 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235700AbjAQGPn (ORCPT ); Tue, 17 Jan 2023 01:15:43 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 11A2023330 for ; Mon, 16 Jan 2023 22:15:42 -0800 (PST) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pHfFb-0002TC-Dx; Tue, 17 Jan 2023 07:15:15 +0100 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pHfFY-006bzn-M7; Tue, 17 Jan 2023 07:15:12 +0100 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pHfFW-00FciP-S2; Tue, 17 Jan 2023 07:15:10 +0100 From: Oleksij Rempel To: Rob Herring , Krzysztof Kozlowski , Shawn Guo , Sascha Hauer , Abel Vesa , Michael Turquette , Stephen Boyd , Richard Cochran Cc: Oleksij Rempel , kernel@pengutronix.de, Fabio Estevam , NXP Linux Team , Russell King , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH v2 02/19] clk: imx6q: add ethernet refclock mux support Date: Tue, 17 Jan 2023 07:14:36 +0100 Message-Id: <20230117061453.3723649-3-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230117061453.3723649-1-o.rempel@pengutronix.de> References: <20230117061453.3723649-1-o.rempel@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-clk@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Add ethernet refclock mux support and set it to internal clock by default. This configuration will not affect existing boards since machine code currently overwrites this default. The machine code will be fixed in a separate patch. Signed-off-by: Oleksij Rempel Reviewed-by: Abel Vesa --- drivers/clk/imx/clk-imx6q.c | 13 +++++++++++++ include/dt-bindings/clock/imx6qdl-clock.h | 4 +++- 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c index de36f58d551c..22b464ca22c8 100644 --- a/drivers/clk/imx/clk-imx6q.c +++ b/drivers/clk/imx/clk-imx6q.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -115,6 +116,10 @@ static struct clk_div_table video_div_table[] = { { /* sentinel */ } }; +static const char * enet_ref_sels[] = { "enet_ref", "enet_ref_pad", }; +static const u32 enet_ref_sels_table[] = { IMX6Q_GPR1_ENET_CLK_SEL_ANATOP, IMX6Q_GPR1_ENET_CLK_SEL_PAD }; +static const u32 enet_ref_sels_table_mask = IMX6Q_GPR1_ENET_CLK_SEL_ANATOP; + static unsigned int share_count_esai; static unsigned int share_count_asrc; static unsigned int share_count_ssi1; @@ -908,6 +913,12 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) if (clk_on_imx6q() && imx_get_soc_revision() == IMX_CHIP_REVISION_1_0) hws[IMX6QDL_CLK_GPT_3M] = hws[IMX6QDL_CLK_GPT_IPG_PER]; + hws[IMX6QDL_CLK_ENET_REF_PAD] = imx6q_obtain_fixed_clk_hw(ccm_node, "enet_ref_pad", 0); + + hws[IMX6QDL_CLK_ENET_REF_SEL] = imx_clk_gpr_mux("enet_ref_sel", "fsl,imx6q-iomuxc-gpr", + IOMUXC_GPR1, enet_ref_sels, ARRAY_SIZE(enet_ref_sels), + enet_ref_sels_table, enet_ref_sels_table_mask); + imx_check_clk_hws(hws, IMX6QDL_CLK_END); of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data); @@ -974,6 +985,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) hws[IMX6QDL_CLK_PLL3_USB_OTG]->clk); } + clk_set_parent(hws[IMX6QDL_CLK_ENET_REF_SEL]->clk, hws[IMX6QDL_CLK_ENET_REF]->clk); + imx_register_uart_clocks(2); } CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init); diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h index e20c43cc36f6..e5b2a1ba02bc 100644 --- a/include/dt-bindings/clock/imx6qdl-clock.h +++ b/include/dt-bindings/clock/imx6qdl-clock.h @@ -273,6 +273,8 @@ #define IMX6QDL_CLK_MMDC_P0_IPG 263 #define IMX6QDL_CLK_DCIC1 264 #define IMX6QDL_CLK_DCIC2 265 -#define IMX6QDL_CLK_END 266 +#define IMX6QDL_CLK_ENET_REF_SEL 266 +#define IMX6QDL_CLK_ENET_REF_PAD 267 +#define IMX6QDL_CLK_END 268 #endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */