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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9D41C433EF for ; Fri, 3 Jun 2022 13:56:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244874AbiFCN4L (ORCPT ); Fri, 3 Jun 2022 09:56:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244863AbiFCN4J (ORCPT ); Fri, 3 Jun 2022 09:56:09 -0400 Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::228]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 51B4E393F4 for ; Fri, 3 Jun 2022 06:56:05 -0700 (PDT) Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id DA49F1BF206; Fri, 3 Jun 2022 13:56:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1654264563; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HiwH0hvs5Ie9tHnRP/S+sMx19tdadmBe9hY2JmXi0ps=; b=FHNYJVXCx0BN1YP0CK/i+WpkuldlwrKR/7EWovJl9ozjABZFP/sTPa6bpvD941ducnu3t4 8uIBKbQpadb4MaZ7Orb5gwAVjjrLid0sVbYY0ysZfklPz93EhhGfnXGH8q1YU6z0gKn6Pw 3fHM0vlSshRLYIkuPLH3rD8p/B93+UffQCtvt5DXjWtWTPodsWx+7//t5uy+uYsWqBotoA MPFA3TYHzIwo0Qof8GPTwnNdo+i37jQKfisy6lDc/lnnTGozWSUlH6pN4OOQBFj3MF5bDT 6quGniNFT5+uGb4/1jio1iSLzLfJbkkFCoFU9LSqB49Az30CUxZuwiR/s+kxCQ== Date: Fri, 3 Jun 2022 15:56:00 +0200 From: Miquel Raynal To: Aidan MacDonald Cc: richard@nod.at, vigneshr@ti.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mtd: spinand: Add support for ATO25D1GA Message-ID: <20220603155600.3eab9890@xps-13> In-Reply-To: <20220603135149.11570-1-aidanmacdonald.0x0@gmail.com> References: <20220603135149.11570-1-aidanmacdonald.0x0@gmail.com> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Aidan, aidanmacdonald.0x0@gmail.com wrote on Fri, 3 Jun 2022 14:51:49 +0100: > Add support for the ATO25D1GA SPI NAND flash. >=20 > Datasheet: > - https://atta.szlcsc.com/upload/public/pdf/source/20191212/C469320_04599= D67B03B078044EB65FF5AEDDDE9.pdf >=20 > Signed-off-by: Aidan MacDonald > --- > drivers/mtd/nand/spi/Makefile | 2 +- > drivers/mtd/nand/spi/ato.c | 86 +++++++++++++++++++++++++++++++++++ > drivers/mtd/nand/spi/core.c | 1 + > include/linux/mtd/spinand.h | 1 + > 4 files changed, 89 insertions(+), 1 deletion(-) > create mode 100644 drivers/mtd/nand/spi/ato.c >=20 > diff --git a/drivers/mtd/nand/spi/Makefile b/drivers/mtd/nand/spi/Makefile > index 80dabe6ff0f3..ae17c13d1abe 100644 > --- a/drivers/mtd/nand/spi/Makefile > +++ b/drivers/mtd/nand/spi/Makefile > @@ -1,3 +1,3 @@ > # SPDX-License-Identifier: GPL-2.0 > -spinand-objs :=3D core.o gigadevice.o macronix.o micron.o paragon.o tosh= iba.o winbond.o xtx.o > +spinand-objs :=3D ato.o core.o gigadevice.o macronix.o micron.o paragon.= o toshiba.o winbond.o xtx.o I would keep core.o first in that list, even if it breaks alphabetical ordering slightly :) Otherwise the patch looks good to me. > obj-$(CONFIG_MTD_SPI_NAND) +=3D spinand.o > diff --git a/drivers/mtd/nand/spi/ato.c b/drivers/mtd/nand/spi/ato.c > new file mode 100644 > index 000000000000..82b377c06812 > --- /dev/null > +++ b/drivers/mtd/nand/spi/ato.c > @@ -0,0 +1,86 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright (C) 2022 Aidan MacDonald > + * > + * Author: Aidan MacDonald > + */ > + > +#include > +#include > +#include > + > + > +#define SPINAND_MFR_ATO 0x9b > + > + > +static SPINAND_OP_VARIANTS(read_cache_variants, > + SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), > + SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), > + SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); > + > +static SPINAND_OP_VARIANTS(write_cache_variants, > + SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), > + SPINAND_PROG_LOAD(true, 0, NULL, 0)); > + > +static SPINAND_OP_VARIANTS(update_cache_variants, > + SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), > + SPINAND_PROG_LOAD(false, 0, NULL, 0)); > + > + > +static int ato25d1ga_ooblayout_ecc(struct mtd_info *mtd, int section, > + struct mtd_oob_region *region) > +{ > + if (section > 3) > + return -ERANGE; > + > + region->offset =3D (16 * section) + 8; > + region->length =3D 8; > + return 0; > +} > + > +static int ato25d1ga_ooblayout_free(struct mtd_info *mtd, int section, > + struct mtd_oob_region *region) > +{ > + if (section > 3) > + return -ERANGE; > + > + if (section) { > + region->offset =3D (16 * section); > + region->length =3D 8; > + } else { > + /* first byte of section 0 is reserved for the BBM */ > + region->offset =3D 1; > + region->length =3D 7; > + } > + > + return 0; > +} > + > +static const struct mtd_ooblayout_ops ato25d1ga_ooblayout =3D { > + .ecc =3D ato25d1ga_ooblayout_ecc, > + .free =3D ato25d1ga_ooblayout_free, > +}; > + > + > +static const struct spinand_info ato_spinand_table[] =3D { > + SPINAND_INFO("ATO25D1GA", > + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x12), > + NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), > + NAND_ECCREQ(1, 512), > + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, > + &write_cache_variants, > + &update_cache_variants), > + SPINAND_HAS_QE_BIT, > + SPINAND_ECCINFO(&ato25d1ga_ooblayout, NULL)), > +}; > + > +static const struct spinand_manufacturer_ops ato_spinand_manuf_ops =3D { > +}; > + > +const struct spinand_manufacturer ato_spinand_manufacturer =3D { > + .id =3D SPINAND_MFR_ATO, > + .name =3D "ATO", > + .chips =3D ato_spinand_table, > + .nchips =3D ARRAY_SIZE(ato_spinand_table), > + .ops =3D &ato_spinand_manuf_ops, > +}; > diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c > index d5b685d1605e..9d73910a7ae8 100644 > --- a/drivers/mtd/nand/spi/core.c > +++ b/drivers/mtd/nand/spi/core.c > @@ -927,6 +927,7 @@ static const struct nand_ops spinand_ops =3D { > }; > =20 > static const struct spinand_manufacturer *spinand_manufacturers[] =3D { > + &ato_spinand_manufacturer, > &gigadevice_spinand_manufacturer, > ¯onix_spinand_manufacturer, > µn_spinand_manufacturer, > diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h > index 5584d3bb6556..6d3392a7edc6 100644 > --- a/include/linux/mtd/spinand.h > +++ b/include/linux/mtd/spinand.h > @@ -260,6 +260,7 @@ struct spinand_manufacturer { > }; > =20 > /* SPI NAND manufacturers */ > +extern const struct spinand_manufacturer ato_spinand_manufacturer; > extern const struct spinand_manufacturer gigadevice_spinand_manufacturer; > extern const struct spinand_manufacturer macronix_spinand_manufacturer; > extern const struct spinand_manufacturer micron_spinand_manufacturer; Thanks, Miqu=C3=A8l 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 E8AD6C433EF for ; Fri, 3 Jun 2022 13:56:36 +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: 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miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id DA49F1BF206; Fri, 3 Jun 2022 13:56:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1654264563; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HiwH0hvs5Ie9tHnRP/S+sMx19tdadmBe9hY2JmXi0ps=; b=FHNYJVXCx0BN1YP0CK/i+WpkuldlwrKR/7EWovJl9ozjABZFP/sTPa6bpvD941ducnu3t4 8uIBKbQpadb4MaZ7Orb5gwAVjjrLid0sVbYY0ysZfklPz93EhhGfnXGH8q1YU6z0gKn6Pw 3fHM0vlSshRLYIkuPLH3rD8p/B93+UffQCtvt5DXjWtWTPodsWx+7//t5uy+uYsWqBotoA MPFA3TYHzIwo0Qof8GPTwnNdo+i37jQKfisy6lDc/lnnTGozWSUlH6pN4OOQBFj3MF5bDT 6quGniNFT5+uGb4/1jio1iSLzLfJbkkFCoFU9LSqB49Az30CUxZuwiR/s+kxCQ== Date: Fri, 3 Jun 2022 15:56:00 +0200 From: Miquel Raynal To: Aidan MacDonald Cc: richard@nod.at, vigneshr@ti.com, linux-mtd@lists.infradead.org, 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