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 X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 259BAC433E0 for ; Tue, 29 Dec 2020 05:52:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD10C208D5 for ; Tue, 29 Dec 2020 05:52:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726244AbgL2FwH (ORCPT ); Tue, 29 Dec 2020 00:52:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726021AbgL2FwG (ORCPT ); Tue, 29 Dec 2020 00:52:06 -0500 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64F89C0613D6 for ; Mon, 28 Dec 2020 21:51:26 -0800 (PST) Received: by mail-pl1-x62b.google.com with SMTP id j1so6733482pld.3 for ; Mon, 28 Dec 2020 21:51:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=0x0f.com; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Ws6av0vO/n+wtrNUa74n3tClewh7290nN7ExGkq43UI=; b=YY41nMVeSFbTCpTx+MYE+RLVcV7VcqULCF0sXiC5fu3HDw4t/KZWH7ZUF1rr8VHw8u 4i0NUe0+vqLBoKxuvW761+OekAaEKXolvcFlzmK76eVnaWnhEQjf+VhNQLvvhO3NrTq3 qCIgzBCCmuUYOTIku0kq01wRcRZd7K+1ybJtI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Ws6av0vO/n+wtrNUa74n3tClewh7290nN7ExGkq43UI=; b=Yz86ZSZKMkvfoitM4J13n5UPh5YnsPqnsWyrb719Anpjec5IULPtd6k7CtQyXQQ8kS F09KXiPkebgKQHPdZVlpUYIapyHvkdqkwbbWazGYJsEfofRdsjGRjgXHZlYp8meps0mn BTJ5Ihr8rEBwxCB6UO8rpxj/M7Z5BOLSGMqnRkylMeIs7BGuGqdDWYQwKr0VsHAw3RqS MBSYhnLZt7duGQLoOPHZlsL/CZlkDBKuWmrnyMbY4PStylaojZ0HRYHjGCxhhlBE/fGk FffYNsJ6OVRAWYd6t6/WzEcmTTRAhnfkDdPopI9us6H1QxDyGKKbkArtwIB/LvunIda/ kiyw== X-Gm-Message-State: AOAM533UC1970UmYckDk+f2MKVYaSUH5TWG9V8eH0EB47mlVqaCj+iJR waVpeOUFnnUYTxxFXyViPGKjQA== X-Google-Smtp-Source: ABdhPJyho6BEPlXg0tseu2Gzc0+n/F44qHf9yOCIxgGR0kpQZq/Rh9SpXsyWd3kxTKjiFY3PI0SXaA== X-Received: by 2002:a17:90b:90f:: with SMTP id bo15mr2474480pjb.148.1609221085820; Mon, 28 Dec 2020 21:51:25 -0800 (PST) Received: from shiro.work (p1268123-ipngn200803sizuokaden.shizuoka.ocn.ne.jp. [118.13.124.123]) by smtp.googlemail.com with ESMTPSA id x23sm45041113pge.47.2020.12.28.21.51.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Dec 2020 21:51:25 -0800 (PST) From: Daniel Palmer To: linux-mtd@lists.infradead.org Cc: linux-kernel@vger.kernel.org, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, Daniel Palmer Subject: [PATCH 0/1] Add basic support for Foresee SPI NAND Date: Tue, 29 Dec 2020 14:50:58 +0900 Message-Id: <20201229055059.2255021-1-daniel@0x0f.com> X-Mailer: git-send-email 2.30.0.rc2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is my very crude attempt at adding support for Longsys' Foresee branded SPI NAND parts that are showing up on some boards. I fully admit I have no idea what I'm doing here and I basically took one of the existing files, ripped out what I didn't understand and tried to fill in the numbers from the datasheet without really knowing what they mean. This worked well enough for me to get something that looks like a correct dump of the SPI NAND from a board I'm working with. I need the vendor firmware on the board for reverse engineering so I haven't actually tried to write anything yet. The datasheet for this chip is linked. If someone that actually knows what they're doing could take a look and point out my mistakes that would be great. Link: https://datasheet.lcsc.com/szlcsc/2008121142_FORESEE-FS35ND01G-S1Y2QWFI000_C719495.pdf Daniel Palmer (1): mtd: spinand: add support for Foresee FS35ND01G drivers/mtd/nand/spi/Makefile | 2 +- drivers/mtd/nand/spi/core.c | 1 + drivers/mtd/nand/spi/longsys.c | 45 ++++++++++++++++++++++++++++++++++ include/linux/mtd/spinand.h | 1 + 4 files changed, 48 insertions(+), 1 deletion(-) create mode 100644 drivers/mtd/nand/spi/longsys.c -- 2.30.0.rc2