From mboxrd@z Thu Jan 1 00:00:00 1970 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 2653CC4167B for ; Thu, 7 Dec 2023 17:25:43 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 10CBF86E; Thu, 7 Dec 2023 18:25:31 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 10CBF86E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1701969941; bh=OSaCKj49TdBQE/wW0nBbIlYjNisy5X/gJJF/8cHix4E=; h=Date:Subject:To:Cc:References:From:In-Reply-To:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=ntgzg8UsbIC3BGXvFWDwrZDEjaJ2AZvjoB+Pmt6f3vJ3gvA3XH3AZ1ET61rIq+Frj x/baWl8bKwQ8HoIRTPJ0NSQOA/oJH0TQ1Y/UYJp1yC1DaFP/PbnetLs8J9pPDqXGtx fcqO69ile1Y4xlm2QAbk3e0zXtswJh1x3RywRe5M= Received: by alsa1.perex.cz (Postfix, from userid 50401) id EA08DF8056F; Thu, 7 Dec 2023 18:25:08 +0100 (CET) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 057DAF8057F; Thu, 7 Dec 2023 18:25:08 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 93C70F8024E; Thu, 7 Dec 2023 18:25:02 +0100 (CET) Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 8ACC9F800E4 for ; Thu, 7 Dec 2023 18:24:54 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 8ACC9F800E4 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=DF6JpJO5 Received: by mail-ej1-x62b.google.com with SMTP id a640c23a62f3a-a1f5cb80a91so55383666b.3 for ; Thu, 07 Dec 2023 09:24:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1701969892; x=1702574692; darn=alsa-project.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=OSaCKj49TdBQE/wW0nBbIlYjNisy5X/gJJF/8cHix4E=; b=DF6JpJO5PIN/ogcr0yzAJrM8RebWSvEXdGcqMW5EdTmSy+AfpK+mriZl/wZoAdia9o aJztzYdVijPrklAroh6nIHrfTw4shCcVRl4QaLROk1eP05qIXOBuG/i8E1VTU5yzverk eTDfDvBWVTAuEKfiBCC4mH9cf1+agbVwzHpYYJDUCsh+BvvysiHNPK0jSEPAzgu1cKH5 dICEg7YDIUGGIf6UpcXqE6R7pu0xSss+1iDNYaMAwel2qYggzCLJiIezgn8A6cqNCN+e FEsM1Cu/OgtDh9rs/Pqaq5+BlsSxPUyd0yYPSmAkInZkDbOQerAPvrfb5G2QXopmqNOe 3GSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701969892; x=1702574692; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=OSaCKj49TdBQE/wW0nBbIlYjNisy5X/gJJF/8cHix4E=; b=pu6tD1YPKfTFa5hitQ3cL+a+cvNzszs80ysl+0yWU1Ne8q9YXXbkS26RzkTkZduHdt 6AuyVF0f3VE/FEgm36my/Y7MBq+C0Rii8ryEJDWLv9Z9Kam50HkLk1N73rqEmHr/9KAx Ml7J2YcGCI0nUseWi8h6lU7eDGh3yNK5ngle7loXxEcGZKTJRCl24UtN1ZUqmzTjvVsk 6tskmO/go0AZ9lDDtspWGTRdpYOM3+HXc8n9UYo1RRVt7gqCBTC/ICh3SxTRO77DOT4F OOg6cTdWaNjKa3FaLFP7zweuudpnFE1RNB7ZQfBQ2XbxKUnwQveLJbd4mnC8XdvgGfnH qIZA== X-Gm-Message-State: AOJu0YztDYsSJSWoL6emCsbuCIdwMY5cRRm5wkZSKpjYXfga4SxGCo6r sB9p06e05KnHVSBTdn4CEUX7kQ== X-Google-Smtp-Source: AGHT+IEtTd+pA4mJobxUqdqM7SglT4EunogmAQ8lpbogM+tHlUMEk4Qwu5mWYwLQ9J+s2P4F/4V7+g== X-Received: by 2002:a17:907:5020:b0:a19:9b79:8b5d with SMTP id fw32-20020a170907502000b00a199b798b5dmr1010958ejc.110.1701969892432; Thu, 07 Dec 2023 09:24:52 -0800 (PST) Received: from [192.168.2.107] ([79.115.63.75]) by smtp.gmail.com with ESMTPSA id a14-20020a170906684e00b009fd0102f71asm1078898ejs.176.2023.12.07.09.24.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 Dec 2023 09:24:50 -0800 (PST) Message-ID: <797b9023-e56b-404b-bb4e-6e178b7ada88@linaro.org> Date: Thu, 7 Dec 2023 17:24:48 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v11 07/10] mtd: spi-nor: Add stacked memories support in spi-nor Content-Language: en-US To: Amit Kumar Mahapatra , broonie@kernel.org, pratyush@kernel.org, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, sbinding@opensource.cirrus.com, lee@kernel.org, james.schulman@cirrus.com, david.rhodes@cirrus.com, rf@opensource.cirrus.com, perex@perex.cz, tiwai@suse.com Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, michael@walle.cc, linux-mtd@lists.infradead.org, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, claudiu.beznea@tuxon.dev, michal.simek@amd.com, linux-arm-kernel@lists.infradead.org, alsa-devel@alsa-project.org, patches@opensource.cirrus.com, linux-sound@vger.kernel.org, git@amd.com, amitrkcian2002@gmail.com References: <20231125092137.2948-1-amit.kumar-mahapatra@amd.com> <20231125092137.2948-8-amit.kumar-mahapatra@amd.com> From: Tudor Ambarus In-Reply-To: <20231125092137.2948-8-amit.kumar-mahapatra@amd.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Message-ID-Hash: J6QM7D3LHDOQUY5UO4OMXTYOLOL3VDFH X-Message-ID-Hash: J6QM7D3LHDOQUY5UO4OMXTYOLOL3VDFH X-MailFrom: tudor.ambarus@linaro.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: <> List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On 11/25/23 09:21, Amit Kumar Mahapatra wrote: > The current implementation assumes that a maximum of two flashes are > connected in stacked mode and both the flashes are of same make but can > differ in sizes. So, except the sizes all other flash parameters of both > the flashes are identical. Too much restrictions, isn't it? Have you thought about adding a layer on top of SPI NOR managing the stacked/parallel flashes? From mboxrd@z Thu Jan 1 00:00:00 1970 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 31F39C4167B for ; Thu, 7 Dec 2023 17:25:13 +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:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=rYl4tmeDanncBYbbsNCtVNLAT3duycJPG3uW8dkeyA4=; b=HIICBsapcz08Xi 4eS+TF+lFbLu7QEiZ3fUjfh2PKafbL+I7M7JdCH/0CXOWgq37ZH16hqBqzF+Wj1aaJZfNwfdHRo7r 1Lx95gfxMQsoGWMEFO5Z+JJzg+D3PahOd8Mcf0KFS9fbUcLWp0yYNzRjNiyh7MrV0Q3Cz4yAB6/r8 oi315RT/frdcsPXdTQp78MzXvhEYL9EOPLGuaM+iT0QbUB5DNzLkvSxoIGZmkcN5rzTGOl8wvynJw MMihTL9EXegayshafORBCCavwtZISzx5w/qIxkfwzafv3dPVt4n9Mc/qolNO6GJJ40D0rRvTD5fHY hPEIr1aLNi1RgS+DuahA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rBI7S-00DX6b-2e; Thu, 07 Dec 2023 17:25:02 +0000 Received: from mail-ej1-x632.google.com ([2a00:1450:4864:20::632]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rBI7P-00DX4g-2b for linux-mtd@lists.infradead.org; Thu, 07 Dec 2023 17:25:01 +0000 Received: by mail-ej1-x632.google.com with SMTP id a640c23a62f3a-a1db6816177so161740766b.0 for ; Thu, 07 Dec 2023 09:24:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1701969892; x=1702574692; darn=lists.infradead.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=OSaCKj49TdBQE/wW0nBbIlYjNisy5X/gJJF/8cHix4E=; b=cH+E0QjH3y+M9u3/QHAcHmcJOOk+vxi8S3+LmhCc2HPraBwiBQ2Ph3HHhnZZS7f3dY V66kY9i8Bmns/tNCNpnYFVomxL5vfNSK7HOfBOwh+GVqH3DHBxevOYgKQPvZdbBIq/qw 5bXNOnN3imDLZWNIL+SI52WtMngyH70GRHX/RHrjfgeZVkYX18cpbI5rCXJ21PV5Ag1W llkpf1o/RNgnLpXBja5oLclnHePUowCv+jOQ07ztRSQMshWZvPCBzWM3j+jRWDF9HkT/ htJ4DB3zcl/Que9zYgSkpbWjxWRRS9RkfehJHWOzdEaYJ/uDGIedlXLGlctswC8VRRwN wolA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701969892; x=1702574692; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=OSaCKj49TdBQE/wW0nBbIlYjNisy5X/gJJF/8cHix4E=; b=E7ldl0bP/er0Nta2XNQluKyntUUQg7JMIc8ZHHSkEQgWT1wRJc9umHNdeIOiwM4qdF dIzbHcZizjJIieP+iEcL4Ac4rVQSwRmUTTV0QTXspyS5G7ZCVfq+NwDs7fCF4pUa5mrl A0j2IzNZCq8QC+eHVm09EB7RtCSvvr2JrV7a1lSw722M+GtY7zhi0vxXiBSvG4ZiZogr vTYDZyBh83BjVhFE0CjOyle6JgYGZLKRVgcBm9U71vuOI6IR3btmVviTyv1cuGMcML8R 3jHJMyxC7Vg61TwysOEWUDIQql7WtCrr7hX3JaoRF1p/OuspIxUkhBjAPAKAZPIOH4pR mRjg== X-Gm-Message-State: AOJu0Ywsf591La7non78oJrbd+fjzkanWDQo3I/fVaTDRctaHplM/XuR ugNU2nU37b7i/2SwUeMl7Ulw3Q== X-Google-Smtp-Source: AGHT+IEtTd+pA4mJobxUqdqM7SglT4EunogmAQ8lpbogM+tHlUMEk4Qwu5mWYwLQ9J+s2P4F/4V7+g== X-Received: by 2002:a17:907:5020:b0:a19:9b79:8b5d with SMTP id fw32-20020a170907502000b00a199b798b5dmr1010958ejc.110.1701969892432; Thu, 07 Dec 2023 09:24:52 -0800 (PST) Received: from [192.168.2.107] ([79.115.63.75]) by smtp.gmail.com with ESMTPSA id a14-20020a170906684e00b009fd0102f71asm1078898ejs.176.2023.12.07.09.24.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 Dec 2023 09:24:50 -0800 (PST) Message-ID: <797b9023-e56b-404b-bb4e-6e178b7ada88@linaro.org> Date: Thu, 7 Dec 2023 17:24:48 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v11 07/10] mtd: spi-nor: Add stacked memories support in spi-nor Content-Language: en-US To: Amit Kumar Mahapatra , broonie@kernel.org, pratyush@kernel.org, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, sbinding@opensource.cirrus.com, lee@kernel.org, james.schulman@cirrus.com, david.rhodes@cirrus.com, rf@opensource.cirrus.com, perex@perex.cz, tiwai@suse.com Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, michael@walle.cc, linux-mtd@lists.infradead.org, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, claudiu.beznea@tuxon.dev, michal.simek@amd.com, linux-arm-kernel@lists.infradead.org, alsa-devel@alsa-project.org, patches@opensource.cirrus.com, linux-sound@vger.kernel.org, git@amd.com, amitrkcian2002@gmail.com References: <20231125092137.2948-1-amit.kumar-mahapatra@amd.com> <20231125092137.2948-8-amit.kumar-mahapatra@amd.com> From: Tudor Ambarus In-Reply-To: <20231125092137.2948-8-amit.kumar-mahapatra@amd.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231207_092459_846702_D27ACB7A X-CRM114-Status: UNSURE ( 7.12 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On 11/25/23 09:21, Amit Kumar Mahapatra wrote: > The current implementation assumes that a maximum of two flashes are > connected in stacked mode and both the flashes are of same make but can > differ in sizes. So, except the sizes all other flash parameters of both > the flashes are identical. Too much restrictions, isn't it? Have you thought about adding a layer on top of SPI NOR managing the stacked/parallel flashes? ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ From mboxrd@z Thu Jan 1 00:00:00 1970 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 E6F75C4167B for ; Thu, 7 Dec 2023 17:25:30 +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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Pzqtv8p8iznJgrRze0EAamWDvpEqM5x0GuVGjUypYcQ=; b=spU7JDKDJDADvZ yp/xiiAFdjk893gSd3BSd9s+L2JOmOswYAdrzV/fSZTE28cOdIPErT99UVxQUv30D7luDXxsXy4a7 bTjGiRoVRoVjA6OdauqD2iXxuP40pRL/MVJjDWD9i+aW67eGJFgGPXvKcRyo2tFkN0uvduOHApDGC IcyZU0UKw7OfcgZPKaiX+aYQQ/ieGIN4sEJa3KTOT52QC4CSe3M6/Dg8M6qVoG/vNVmARdEIOTkkX fF5fnG2Cx+XMkDinFR8QTxajyip4QV/34aZQfqL+9fS+Svvd/iY1lBE30JVJQ9MSoWXKRQk7bPAfT T/+tgUEZVjHEYktUAmgg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rBI7S-00DX6N-0j; Thu, 07 Dec 2023 17:25:02 +0000 Received: from mail-ej1-x62c.google.com ([2a00:1450:4864:20::62c]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rBI7P-00DX4h-2c for linux-arm-kernel@lists.infradead.org; Thu, 07 Dec 2023 17:25:01 +0000 Received: by mail-ej1-x62c.google.com with SMTP id a640c23a62f3a-a1db99cd1b2so158554266b.2 for ; Thu, 07 Dec 2023 09:24:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1701969892; x=1702574692; darn=lists.infradead.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=OSaCKj49TdBQE/wW0nBbIlYjNisy5X/gJJF/8cHix4E=; b=cH+E0QjH3y+M9u3/QHAcHmcJOOk+vxi8S3+LmhCc2HPraBwiBQ2Ph3HHhnZZS7f3dY V66kY9i8Bmns/tNCNpnYFVomxL5vfNSK7HOfBOwh+GVqH3DHBxevOYgKQPvZdbBIq/qw 5bXNOnN3imDLZWNIL+SI52WtMngyH70GRHX/RHrjfgeZVkYX18cpbI5rCXJ21PV5Ag1W llkpf1o/RNgnLpXBja5oLclnHePUowCv+jOQ07ztRSQMshWZvPCBzWM3j+jRWDF9HkT/ htJ4DB3zcl/Que9zYgSkpbWjxWRRS9RkfehJHWOzdEaYJ/uDGIedlXLGlctswC8VRRwN wolA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701969892; x=1702574692; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=OSaCKj49TdBQE/wW0nBbIlYjNisy5X/gJJF/8cHix4E=; b=ph4nZ7WmPfOJQg14MRhZjhiT6SA4CJJ0csbqLEQ2VoOxdo+hTkMxtEESbm5uHBS5/2 PxxrfUWXQyAWXpH6MEFzm/ZKLnkycA/e8U4erICY66yg5egN0fI6fodzU8I1q485rpHF Qy6fj3c6j9sJZc4LbFQgyMxBDOGu5r6x4jXAYTevoH+VsUD7f8Jk94RIRwueW+WKmVA5 VKV6/F+Ew8Ub2e4kKBvJs0Abv5+bcTkn72HoPOy2VOlzfxiv9CmWd0WedCm08jQyIngY DO5R2SR4AZDWNtP81METPJDH/MWnAQlYlvaWakyjctYtFZwk5okY26wUMkGWqXH5+Brg SvuA== X-Gm-Message-State: AOJu0Yxx8UyoOFXGuI3owpCcsgCyahoBLa3sUiXkgCLBuqIpjA3hafSi YFKm6ZndT1wjkUUc31tGbBmRRw== X-Google-Smtp-Source: AGHT+IEtTd+pA4mJobxUqdqM7SglT4EunogmAQ8lpbogM+tHlUMEk4Qwu5mWYwLQ9J+s2P4F/4V7+g== X-Received: by 2002:a17:907:5020:b0:a19:9b79:8b5d with SMTP id fw32-20020a170907502000b00a199b798b5dmr1010958ejc.110.1701969892432; Thu, 07 Dec 2023 09:24:52 -0800 (PST) Received: from [192.168.2.107] ([79.115.63.75]) by smtp.gmail.com with ESMTPSA id a14-20020a170906684e00b009fd0102f71asm1078898ejs.176.2023.12.07.09.24.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 Dec 2023 09:24:50 -0800 (PST) Message-ID: <797b9023-e56b-404b-bb4e-6e178b7ada88@linaro.org> Date: Thu, 7 Dec 2023 17:24:48 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v11 07/10] mtd: spi-nor: Add stacked memories support in spi-nor Content-Language: en-US To: Amit Kumar Mahapatra , broonie@kernel.org, pratyush@kernel.org, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, sbinding@opensource.cirrus.com, lee@kernel.org, james.schulman@cirrus.com, david.rhodes@cirrus.com, rf@opensource.cirrus.com, perex@perex.cz, tiwai@suse.com References: <20231125092137.2948-1-amit.kumar-mahapatra@amd.com> <20231125092137.2948-8-amit.kumar-mahapatra@amd.com> From: Tudor Ambarus In-Reply-To: <20231125092137.2948-8-amit.kumar-mahapatra@amd.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231207_092459_849479_4E7CC583 X-CRM114-Status: UNSURE ( 8.01 ) X-CRM114-Notice: Please train this message. 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: , Cc: git@amd.com, alexandre.belloni@bootlin.com, alsa-devel@alsa-project.org, patches@opensource.cirrus.com, amitrkcian2002@gmail.com, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, michael@walle.cc, linux-mtd@lists.infradead.org, claudiu.beznea@tuxon.dev, linux-spi@vger.kernel.org, michal.simek@amd.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 11/25/23 09:21, Amit Kumar Mahapatra wrote: > The current implementation assumes that a maximum of two flashes are > connected in stacked mode and both the flashes are of same make but can > differ in sizes. So, except the sizes all other flash parameters of both > the flashes are identical. Too much restrictions, isn't it? Have you thought about adding a layer on top of SPI NOR managing the stacked/parallel flashes? _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel