From patchwork Wed Jun 7 20:16:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Rokosov X-Patchwork-Id: 13271215 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 96C50C8300C for ; Wed, 7 Jun 2023 20:17:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=EeVO23LWgRqNdhIM89/nLp8VTZL/vZIzf1U/FnAvu0E=; b=yUMjgfdD2RIvx5 i6gBOLcZ2ROYopgzZSMES7CKmnCxfvRlx9VFF+FelKgaQZpzpSXGJ+d8+Pm3C5gb4VLUC40WrTVOz Tx8MADSr6EcG5Or3eFwXAApYKBGD8QG+vEmJgtPkMxkeRCTkaOZfyd39wjuLDDYaxeu2TO4nM3Yfw jvMv2tgJaacEHr4Cu+7fxUs0uNL/absieqkavUERYK17nHdI/pL2EYn32pVuNhjPRBGM2nG21s6ZZ FQKapFLHG76YUJuqrms7jwO+DeqF91txS9EhAeLi9KsaqoTtK3DQyDi83UM7gJiV3r6YuIex4bak6 qiQ3bMo090AhAQPmKzgQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q6zal-00756C-2p; Wed, 07 Jun 2023 20:17:15 +0000 Received: from mx.sberdevices.ru ([45.89.227.171]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q6zac-0074yq-21; Wed, 07 Jun 2023 20:17:08 +0000 Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id 3BC105FD73; Wed, 7 Jun 2023 23:16:56 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1686169016; bh=ZYzm10ARzicI/VkalxH9IaqGb8tcNyA0d5VD1WYq+Ig=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=tFuV+yAWUo7Q0sYLMKf2M4BuNmvcVlg643acSfnG19o9ztjGz5c14v0md6UFe1hum L5M1cTrJFMmA02ElgVAKzuP1Em/6iGgBbpzRzlWwDeO5UGtddWkkrcQd1DTCLMJpCz zNpERrZdP4tvAosYgpSoCL2LI7p4m3pxq7hfZ5s7YTtKxlRXK5cnTz/6LVLQJ4yyBg 4TamtmB64oysLQ02Qu9uFe9+erDwZCkLMYD//roEmxlIBPUFRW1AOZUA2yqSAengyx vP60/8mI6Haow3vDD9UT5F1RtRXPYNsSxVafXtXjVKGKJfbYfBhvXDFJ7A6SAJxChj CpF4yCInn2Qrg== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Wed, 7 Jun 2023 23:16:56 +0300 (MSK) From: Dmitry Rokosov To: , , , , , , , , CC: , , , , , , , , Jan Dakinevich , Dmitry Rokosov Subject: [PATCH v1 6/6] arm64: dts: meson: a1: add eMMC controller and its pins Date: Wed, 7 Jun 2023 23:16:41 +0300 Message-ID: <20230607201641.20982-7-ddrokosov@sberdevices.ru> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20230607201641.20982-1-ddrokosov@sberdevices.ru> References: <20230607201641.20982-1-ddrokosov@sberdevices.ru> MIME-Version: 1.0 X-Originating-IP: [172.16.1.6] X-ClientProxiedBy: S-MS-EXCH01.sberdevices.ru (172.16.1.4) To S-MS-EXCH01.sberdevices.ru (172.16.1.4) X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2023/06/07 16:55:00 #21454472 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230607_131707_019939_C8E784CF X-CRM114-Status: GOOD ( 10.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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. 'meson-gx' driver during initialization 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/dts/amlogic/meson-a1.dtsi index 3eb6aa9c00e0..a25170c61462 100644 --- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi @@ -134,6 +134,32 @@ mux { bias-pull-down; }; }; + + sdio_pins: sdio { + mux-0 { + groups = "sdcard_d0_x", + "sdcard_d1_x", + "sdcard_d2_x", + "sdcard_d3_x", + "sdcard_cmd_x"; + function = "sdcard"; + bias-pull-up; + }; + + mux-1 { + groups = "sdcard_clk_x"; + function = "sdcard"; + bias-disable; + }; + }; + + sdio_clk_gate_pins: sdio_clk_gate { + mux { + groups = "sdcard_clk_x"; + function = "sdcard"; + bias-pull-down; + }; + }; }; uart_AO: serial@1c00 { @@ -200,6 +226,23 @@ usb2_phy1: phy@4000 { #phy-cells = <0>; power-domains = <&pwrc PWRC_USB_ID>; }; + + sd_emmc: sd@10000 { + compatible = "amlogic,meson-axg-mmc"; + reg = <0x0 0x10000 0x0 0x800>; + interrupts = ; + clocks = <&clkc_periphs CLKID_SD_EMMC_A>, + <&clkc_periphs CLKID_SD_EMMC>, + <&clkc_pll CLKID_FCLK_DIV2>; + clock-names = "core", + "clkin0", + "clkin1"; + assigned-clocks = <&clkc_periphs CLKID_SD_EMMC_SEL2>; + assigned-clock-parents = <&xtal>; + resets = <&reset RESET_SD_EMMC_A>; + power-domains = <&pwrc PWRC_SD_EMMC_ID>; + status = "disabled"; + }; }; gic: interrupt-controller@ff901000 {