From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=pass header.oldest-pass=0 smtp.remote-ip=136.143.169.17 ARC-Seal: i=2; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=pass; t=1793644866; b=5MynG9ZiVBdLUqulU5usQcp8fN3h9g+hDvuq0OZ2tIZWJf0IfFDqtm68zR27Vckm21av 6rwJ+dEOm1PXGmSTz9eLljK+aBdmQH8WAMr+703cuRBDe3mLMx3iprTtvSic75qAAZKE5 MtVdtU1I/rSgibH+8VZE//QgALTsT1zZZ+oG0r3UHgp1HggnHqztcdqEPec5oWof3lcJa I/zr1WvV940N3xxJJdeqoV4yCUTzRxjx6/LV6DyDVyz+SPO0B7mZtmvW0mA6hW4TKAWkJ 4ct0dH7EpFEsVYLpNMrLTdYfJZxIZBHgMB8AYdsL56Gu/ymgfmmEX7Bs/GowuRo96Yg== ARC-Message-Signature: i=2; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793644866; h=DMARC-Filter:DKIM-Signature:Received:From:To:Cc:Subject:Date: Message-ID:In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=x2JYvPAFU2onTnd8tUYxjXC7Nzj85EYDqdqRJ3qq08g=; b=vFDI0CWwTY06IddbRjn381xDMbsjOczK1jRVR/hkFTlZYC5CaPeb3VnqRM8DB6sezW1k itJIF7Yv2/zqAAECD1ww32riONEB2E3rwlL/YWDhlLtSVl/PMyYzKw/likdCdacaJyOfJ Vu5Dul0qcA/6AWWV+tKp1dsBNPxn4RYAi6X3mJW8AIQ7k+t+S6/aM6g7aTdvXzegB/k2Q PldVcG/Sd8gS6k3H1cNumIZZZxheg+bD1gCcfJcO9TCOoOg5w6kqmR2tweT6MvWdGv6R1 hodbsRkvp0UtFdoE1VpZhbiEA5ASavb1HxLosiVOIWf80+ej5aP3oR5j+988kmhlohQ== ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=none header.from=iav.lv; spf=pass smtp.mailfrom=iav.lv; dkim=pass header.d=iav.lv header.i=@iav.lv header.a=rsa-sha256 header.s=zoho header.b=AzFW1jds; arc=pass header.oldest-pass=0 smtp.remote-ip=136.143.169.17 Received: from sender-op-o17.zoho.eu (sender-op-o17.zoho.eu [136.143.169.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A5505606A327; Mon, 2 Nov 2026 18:41:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org A5505606A327 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iav.lv Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iav.lv Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=iav.lv header.i=@iav.lv header.a=rsa-sha256 header.s=zoho header.b=AzFW1jds ARC-Seal: i=1; a=rsa-sha256; t=1793644839; cv=none; d=zohomail.eu; s=zohoarc; b=ZI1w18v9ajwZLxKG63htNilqe0d2mwvjzda/tAdlLQxiC78vodaJrepsFUv0cgqc9FpKflSma0uP8EXUm/ateujJFAyDpAz2pmxClGC2azmYEU0Ix9fo55nRNrjgm3myfmr5GGzNVqjBLRh4zrCa3NBCozXdWL03CJwAW1t4++k= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.eu; s=zohoarc; t=1793644839; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:Subject:Subject:To:To:Message-Id:Reply-To; bh=x2JYvPAFU2onTnd8tUYxjXC7Nzj85EYDqdqRJ3qq08g=; b=ON9c6+GulNPP/MVg3P1Oyh+Mi0Re5wMo/RnB1hyZBbY4x3s0zP8vHwSOu0pfUsRiwu73CeDvue/6ZeOaMm25qXI9S7d6orhZWawtgQ9SAdmBP8ITItGs9PRdtIUhEFXlA92edkG9aOLWi8REPqkAYb6oNjMchVXoemEsEs7/uVQ= ARC-Authentication-Results: i=1; mx.zohomail.eu; dkim=pass header.i=iav.lv; spf=pass smtp.mailfrom=iav@iav.lv; dmarc=pass header.from= DKIM-Signature: a=rsa-sha256; b=AzFW1jdsBWQAQEu6mLS0kkwz/CCkMCivK5e7hQqLegFoHV/g4isoTOvoG2M+ZPpqaqr/GJYb2pB3+O3DU+NI8hDv6nGwOHnmvgy8K8U0FrKCcn93EVCDPorRMaManKiO3+dQoHGBIrbZCHyzkV+f2dFQYYNXBm2gDsNT6yCZn9Q=; c=relaxed/relaxed; s=zoho; d=iav.lv; v=1; bh=x2JYvPAFU2onTnd8tUYxjXC7Nzj85EYDqdqRJ3qq08g=; h=Content-Description:Content-ID:Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Owner:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Resent-Sender:Resent-Cc:Resent-Date:Resent-To:Reply-To:Resent-Message-ID:Resent-From:Sender:Subject:To:Date:From:Message-Id:Reply-To:Subject:To:Cc; Received: by smtp.zoho.eu with SMTPS id 1793644838477757.940158003217; Mon, 2 Nov 2026 19:40:38 +0100 (CET) From: Igor Velkov To: Christian Hewitt Cc: Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dongjin Kim , Eric Neulight , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, Igor Velkov Subject: Re: [PATCH] arm64: dts: amlogic: meson-sm1-odroid: let the SD card be powered down Date: Mon, 02 Nov 2026 20:38:31 +0200 Message-ID: <20261102-hc4-sd-hewitt-reply-1@iav.lv> In-Reply-To: References: <20261003-hc4-sd-power-off-v1-1-f7ffba01b348@iav.lv> <179100548183.3372253.2014593916926884551@iav.lv> <179140715034.293470.4459182430175564610@iav.lv> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Hi Christian, For HC4 I sent the U-Boot side on Oct 13 [1]: the same idea as your first patch, plus u-boot,off-on-delay-us = <100000> on TFLASH_VDD. Without it mmc_power_cycle() keeps the supply off for only 2 ms. With it HC4 boots from SD after a watchdog reset 3/3 (0/3 before), so the delay may be worth a try on VIM1S. On ODROID-N2 the factory BL2 leaves DELAY1/DELAY2/ADJUST at 0, so I haven't seen your second issue there. [1] https://lore.kernel.org/r/20261013-b4-hc4-sd-power-cycle-v1-1-cde760a256a5@iav.lv -- Igor Velkov