From nobody Thu Dec 18 17:09:46 2025 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 625CCC727A9 for ; Wed, 23 Aug 2023 21:37:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238481AbjHWVhC (ORCPT ); Wed, 23 Aug 2023 17:37:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238383AbjHWVgv (ORCPT ); Wed, 23 Aug 2023 17:36:51 -0400 Received: from mx1.sberdevices.ru (mx1.sberdevices.ru [37.18.73.165]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2F88410DA; Wed, 23 Aug 2023 14:36:49 -0700 (PDT) Received: from p-infra-ksmg-sc-msk01 (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id 2E1B510000F; Thu, 24 Aug 2023 00:36:46 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru 2E1B510000F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1692826606; bh=+wyddMx7gA9nub1r8PKRrOQbCaVGHVMPyA0X9m7YUaM=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=cUyUKX2yZiUyFxL3gRpvsJikRwC6By32o04M5ycVk6ah4Dmuia+rDKqZOAFfPLIX+ sCkMlsTF58I3EyTuAPKFPjkyJ89nW2kgMljw9u5BoJwA7DOtBNR6zgfeHfrVVjvWXV z0A17kecuQ9pUHwb8vvKSmFcZvmTAFJkX4M1BEAe4QczDZx7LvaQm7CZ+hl6rxjKy9 L2Gmt+1CQb9bGKLXBXvTALjkJLp3IGyqG0tXfU0RQvf8IRsVxit+PYJ0TGpquDCS6k u+VXeBi01A5bQN2C1MHk6pfhlL+zKR1fD4soR1WvImhTGeC12ouOjUCKxm6ghDtQf+ mpe+b7lGYZ7QA== Received: from p-i-exch-sc-m01.sberdevices.ru (p-i-exch-sc-m01.sberdevices.ru [172.16.192.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Thu, 24 Aug 2023 00:36:45 +0300 (MSK) Received: from localhost.localdomain (100.64.160.123) by p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Thu, 24 Aug 2023 00:36:42 +0300 From: Dmitry Rokosov To: , , , , , , , , CC: , , , , , , , , Jan Dakinevich , Dmitry Rokosov Subject: [PATCH v2 10/15] arm64: dts: meson: a1: add eMMC controller and its pins Date: Thu, 24 Aug 2023 00:36:25 +0300 Message-ID: <20230823213630.12936-11-ddrokosov@sberdevices.ru> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20230823213630.12936-1-ddrokosov@sberdevices.ru> References: <20230823213630.12936-1-ddrokosov@sberdevices.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 179413 [Aug 23 2023] X-KSMG-AntiSpam-Version: 5.9.59.0 X-KSMG-AntiSpam-Envelope-From: ddrokosov@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 527 527 5bb611be2ca2baa31d984ccbf4ef4415504fc308, {Tracking_smtp_not_equal_from}, {Tracking_from_domain_doesnt_match_to}, salutedevices.com:7.1.1;sberdevices.ru:7.1.1,5.0.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;127.0.0.199:7.1.2;p-i-exch-sc-m01.sberdevices.ru:7.1.1,5.0.1;100.64.160.123:7.1.2, FromAlignment: n, {Tracking_smtp_domain_mismatch}, {Tracking_smtp_domain_2level_mismatch}, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2023/08/23 18:49:00 #21688451 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Jan Dakinevich The definition is inspired by a similar one for AXG SoC family. 'sdio_pins' and 'sdio_clk_gate_pins' pinctrls are supposed to be used as "default" and "clk-gate" in board-specific device trees. During initialization 'meson-gx' driver sets clock to safe low-frequency value (400kHz). However, both source clocks ("clkin0" and "clkin1") are high-frequency by default, and using of eMMC's internal divider is not enough to achieve so low values. To provide low-frequency source, reparent "sd_emmc_sel2" clock using 'assigned-clocks' property. Signed-off-by: Jan Dakinevich Signed-off-by: Dmitry Rokosov --- arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 43 +++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dt= s/amlogic/meson-a1.dtsi index 1cc34fe003af..6968fbd33348 100644 --- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi @@ -142,6 +142,32 @@ mux { bias-pull-down; }; }; + + sdio_pins: sdio { + mux0 { + groups =3D "sdcard_d0_x", + "sdcard_d1_x", + "sdcard_d2_x", + "sdcard_d3_x", + "sdcard_cmd_x"; + function =3D "sdcard"; + bias-pull-up; + }; + + mux1 { + groups =3D "sdcard_clk_x"; + function =3D "sdcard"; + bias-disable; + }; + }; + + sdio_clk_gate_pins: sdio-clk-gate { + mux { + groups =3D "sdcard_clk_x"; + function =3D "sdcard"; + bias-pull-down; + }; + }; }; =20 gpio_intc: interrupt-controller@440 { @@ -208,6 +234,23 @@ clkc_pll: pll-clock-controller@7c80 { <&clkc_periphs CLKID_HIFIPLL_IN>; clock-names =3D "fixpll_in", "hifipll_in"; }; + + sd_emmc: sd@10000 { + compatible =3D "amlogic,meson-axg-mmc"; + reg =3D <0x0 0x10000 0x0 0x800>; + interrupts =3D ; + clocks =3D <&clkc_periphs CLKID_SD_EMMC_A>, + <&clkc_periphs CLKID_SD_EMMC>, + <&clkc_pll CLKID_FCLK_DIV2>; + clock-names =3D "core", + "clkin0", + "clkin1"; + assigned-clocks =3D <&clkc_periphs CLKID_SD_EMMC_SEL2>; + assigned-clock-parents =3D <&xtal>; + resets =3D <&reset RESET_SD_EMMC_A>; + power-domains =3D <&pwrc PWRC_SD_EMMC_ID>; + status =3D "disabled"; + }; }; =20 usb: usb@fe004400 { --=20 2.36.0