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=-15.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=unavailable 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 F15C2C4338F for ; Fri, 6 Aug 2021 19:14:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB80C60FE7 for ; Fri, 6 Aug 2021 19:14:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243878AbhHFTOr convert rfc822-to-8bit (ORCPT ); Fri, 6 Aug 2021 15:14:47 -0400 Received: from relay3-d.mail.gandi.net ([217.70.183.195]:56853 "EHLO relay3-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243827AbhHFTOm (ORCPT ); Fri, 6 Aug 2021 15:14:42 -0400 Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id 11D6860004; Fri, 6 Aug 2021 19:14:24 +0000 (UTC) Date: Fri, 6 Aug 2021 21:14:23 +0200 From: Miquel Raynal To: Apurva Nandan Cc: Richard Weinberger , Vignesh Raghavendra , Mark Brown , Patrice Chotard , Boris Brezillon , , , , Pratyush Yadav Subject: Re: [PATCH 13/13] mtd: spinand: Add support for Winbond W35N01JW SPI NAND flash Message-ID: <20210806211423.5c9d3e96@xps13> In-Reply-To: <20210713130538.646-14-a-nandan@ti.com> References: <20210713130538.646-1-a-nandan@ti.com> <20210713130538.646-14-a-nandan@ti.com> Organization: Bootlin X-Mailer: Claws Mail 3.17.7 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Apurva, Apurva Nandan wrote on Tue, 13 Jul 2021 13:05:38 +0000: > Winbond W35N01JW is SPI NAND flash supporting Octal DTR SPI protocol. a > Add op_vairants for W35N01JW, which include the Octal DTR read/write variants > page ops as well. Add W35N01JW's oob layout functions for the OOB > mtd_ooblayout_ops. Add all op adjustments required for Octal DTR SPI > mode using the adjust_op(). Finally, add an entry for W35N01JW in > spinand_info table. > > Datasheet: https://www.winbond.com/export/sites/winbond/datasheet/W35N01JW_Datasheet_Brief.pdf > Maybe we can split this into two parts: 1/ support the chip 2/ add 8-D support > Signed-off-by: Apurva Nandan > --- > drivers/mtd/nand/spi/winbond.c | 116 ++++++++++++++++++++++++++++++--- > 1 file changed, 107 insertions(+), 9 deletions(-) > > diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c > index 58cda07c15a0..5c2b9e61b624 100644 > --- a/drivers/mtd/nand/spi/winbond.c > +++ b/drivers/mtd/nand/spi/winbond.c > @@ -16,6 +16,13 @@ > > #define WINBOND_CFG_BUF_READ BIT(3) > > +#define WINBOND_BLK_ERASE_OPCODE 0xD8 > +#define WINBOND_PAGE_READ_OPCODE 0x13 > +#define WINBOND_PROG_EXEC_OPCODE 0x10 > +#define WINBOND_READ_REG_OPCODE_1 0x05 > +#define WINBOND_READ_REG_OPCODE_2 0x0F > +#define WINBOND_READ_VCR_OPCODE 0x85 > + > /* Octal DTR SPI mode (8D-8D-8D) with Data Strobe output*/ > #define WINBOND_IO_MODE_VCR_OCTAL_DTR 0xE7 > #define WINBOND_IO_MODE_VCR_ADDR 0x00 > @@ -24,7 +31,7 @@ > #define WINBOND_DUMMY_CLK_COUNT 12 > #define WINBOND_DUMMY_CLK_VCR_ADDR 0x01 > > -static SPINAND_OP_VARIANTS(read_cache_variants, > +static SPINAND_OP_VARIANTS(read_cache_variants_w25xxgv, > SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), > SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), > SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), > @@ -32,14 +39,27 @@ static SPINAND_OP_VARIANTS(read_cache_variants, > 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, > +static SPINAND_OP_VARIANTS(write_cache_variants_w25xxgv, > SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), > SPINAND_PROG_LOAD(true, 0, NULL, 0)); > > -static SPINAND_OP_VARIANTS(update_cache_variants, > +static SPINAND_OP_VARIANTS(update_cache_variants_w25xxgv, > SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), > SPINAND_PROG_LOAD(false, 0, NULL, 0)); > > +static SPINAND_OP_VARIANTS(read_cache_variants_w35n01jw, > + SPINAND_PAGE_READ_FROM_CACHE_OCTALIO_DTR_OP(0, 24, 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_w35n01jw, > + SPINAND_PROG_LOAD_OCTALIO_DTR(true, 0, NULL, 0), > + SPINAND_PROG_LOAD(true, 0, NULL, 0)); > + > +static SPINAND_OP_VARIANTS(update_cache_variants_w35n01jw, > + SPINAND_PROG_LOAD_OCTALIO_DTR(false, 0, NULL, 0), > + SPINAND_PROG_LOAD(false, 0, NULL, 0)); > + > static int w25m02gv_ooblayout_ecc(struct mtd_info *mtd, int section, > struct mtd_oob_region *region) > { > @@ -64,11 +84,40 @@ static int w25m02gv_ooblayout_free(struct mtd_info *mtd, int section, > return 0; > } > > +static int w35n01jw_ooblayout_ecc(struct mtd_info *mtd, int section, > + struct mtd_oob_region *region) > +{ > + if (section > 7) > + return -ERANGE; > + > + region->offset = (16 * section) + 12; > + region->length = 4; > + > + return 0; > +} > + > +static int w35n01jw_ooblayout_free(struct mtd_info *mtd, int section, > + struct mtd_oob_region *region) > +{ > + if (section > 7) > + return -ERANGE; > + > + region->offset = (16 * section) + 2; > + region->length = 10; > + > + return 0; > +} > + > static const struct mtd_ooblayout_ops w25m02gv_ooblayout = { > .ecc = w25m02gv_ooblayout_ecc, > .free = w25m02gv_ooblayout_free, > }; > > +static const struct mtd_ooblayout_ops w35n01jw_ooblayout = { > + .ecc = w35n01jw_ooblayout_ecc, > + .free = w35n01jw_ooblayout_free, > +}; > + > static int w25m02gv_select_target(struct spinand_device *spinand, > unsigned int target) > { > @@ -88,9 +137,9 @@ static const struct spinand_info winbond_spinand_table[] = { > SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xab), > NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 2), > NAND_ECCREQ(1, 512), > - SPINAND_INFO_OP_VARIANTS(&read_cache_variants, > - &write_cache_variants, > - &update_cache_variants), > + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_w25xxgv, > + &write_cache_variants_w25xxgv, > + &update_cache_variants_w25xxgv), > 0, > SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL), > SPINAND_SELECT_TARGET(w25m02gv_select_target)), > @@ -98,11 +147,22 @@ static const struct spinand_info winbond_spinand_table[] = { > SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xaa), > 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_INFO_OP_VARIANTS(&read_cache_variants_w25xxgv, > + &write_cache_variants_w25xxgv, > + &update_cache_variants_w25xxgv), > 0, > SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)), > + SPINAND_INFO("W35N01JW", > + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xdc), > + NAND_MEMORG(1, 4096, 128, 64, 512, 20, 1, 1, 1), > + NAND_ECCREQ(1, 512), > + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_w35n01jw, > + &write_cache_variants_w35n01jw, > + &update_cache_variants_w35n01jw), > + SPINAND_HAS_OCTAL_DTR_BIT | SPINAND_HAS_POR_CMD_BIT | > + SPINAND_HAS_CR_FEAT_BIT, > + SPINAND_ECCINFO(&w35n01jw_ooblayout, NULL)), > + > }; > > static int winbond_spinand_init(struct spinand_device *spinand) > @@ -183,9 +243,47 @@ static int winbond_spinand_octal_dtr_enable(struct spinand_device *spinand) > return 0; > } > > +static void winbond_spinand_adjust_op(struct spi_mem_op *op, > + const enum spinand_proto reg_proto) > +{ > + /* > + * To support both 1 byte opcode and 2 byte opcodes, extract the MSB > + * byte from the opcode as the LSB byte in 2 byte opcode is treated as > + * don't care. > + */ > + u8 opcode = op->cmd.opcode >> (8 * (op->cmd.nbytes - 1)); > + > + if (reg_proto == SPINAND_OCTAL_DTR) { > + switch (opcode) { > + case WINBOND_READ_REG_OPCODE_1: > + case WINBOND_READ_REG_OPCODE_2: > + op->dummy.nbytes = 14; > + op->dummy.buswidth = 8; > + op->dummy.dtr = true; > + return; > + > + case WINBOND_READ_VCR_OPCODE: > + op->dummy.nbytes = 16; > + op->dummy.buswidth = 8; > + op->dummy.dtr = true; > + return; > + > + case WINBOND_BLK_ERASE_OPCODE: > + case WINBOND_PAGE_READ_OPCODE: > + case WINBOND_PROG_EXEC_OPCODE: > + op->addr.nbytes = 2; > + return; > + > + default: > + return; > + } > + } > +} > + > static const struct spinand_manufacturer_ops winbond_spinand_manuf_ops = { > .init = winbond_spinand_init, > .octal_dtr_enable = winbond_spinand_octal_dtr_enable, > + .adjust_op = winbond_spinand_adjust_op, > }; > > const struct spinand_manufacturer winbond_spinand_manufacturer = { Thanks, Miquèl 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=-15.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, 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