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 64DC3C3DA78 for ; Tue, 17 Jan 2023 16:55:55 +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:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=0tN+tX9Ysen6fXLgFbkMVM1BDPr6k+dePz74RJrpZTY=; b=r7pThyL8Eyl4i9 tA02FT5GjZs5D9lN0IKkjv/sUl12bZB4PBpI89Jv/vIo34et3YQKE/mIII9fdK+mlJYa5NfFtudD8 H00fudJO1+tfsA10DlIc1JKV5rnnWlDOeYRzD76AG+RnyNaOWMcdvVQO0io3L31gOLtSJrO09aylg Zu0EYvt7wNxSSciJ83byRkUJO6jHRXqN3vjmSMoUGkrkTic4ZWMYDW8l9i6noFBvONQblGGcQIZ3u HYhujgGRdOLEX8Em8T9ZQP7noTGEUQpcbeHK4zZTJ11AVkq8TVeGZGsXGei3iGUOAlODrJmBEddzn 7wU0V7uSB74y2Exs3vAw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pHpFE-00FAqq-G2; Tue, 17 Jan 2023 16:55:32 +0000 Received: from www.zeus06.de ([194.117.254.36] helo=mail.zeus06.de) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pHpF8-00FApm-RW for linux-mtd@lists.infradead.org; Tue, 17 Jan 2023 16:55:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=kicherer.org; h=from:to :cc:subject:date:message-id:mime-version :content-transfer-encoding; s=k1; bh=MuSprVR79wzn6FUJMcyvs5dUUfJ PY+y/8zHi13Zvn5U=; b=OJ/0VyWDnQWeXw9UODKyhdFzPDfMAAWCZXYnQOALoQc 0lDEBuZxIHJuuT4oCS9jTYKRtGT9bb4LvHauoi/lUDZzrz6SaI+U6iXIRw2Q2GqL EYHjEZAE/5FlM3wE3qNUpGqu8phS/PiUYOfziOVpRWFzEeBeYvfa9egNfgbfoxH4 = Received: (qmail 1183727 invoked from network); 17 Jan 2023 17:55:14 +0100 Received: by mail.zeus06.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 17 Jan 2023 17:55:14 +0100 X-UD-Smtp-Session: l3s6476p2@kHgvkHjy/9LCtAHJ From: Mario Kicherer To: linux-mtd@lists.infradead.org Cc: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, Mario Kicherer , Dhruva Gole Subject: [PATCH v2] mtd: spinand: Add support for AllianceMemory AS5F34G04SND Date: Tue, 17 Jan 2023 17:54:41 +0100 Message-Id: <20230117165441.1368447-1-dev@kicherer.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230117_085527_211400_48766B41 X-CRM114-Status: GOOD ( 17.96 ) 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 Add support for AllianceMemory AS5F34G04SND SPI NAND flash Datasheet: - https://www.alliancememory.com/wp-content/uploads/pdf/flash/AllianceMemory_SPI_NAND_Flash_July2020_Rev1.0.pdf Signed-off-by: Mario Kicherer Reviewed-by: Dhruva Gole --- Changes since v1: - added missing email recipients, sorry for the noise! drivers/mtd/nand/spi/Makefile | 2 +- drivers/mtd/nand/spi/alliancememory.c | 119 ++++++++++++++++++++++++++ drivers/mtd/nand/spi/core.c | 1 + include/linux/mtd/spinand.h | 1 + 4 files changed, 122 insertions(+), 1 deletion(-) create mode 100644 drivers/mtd/nand/spi/alliancememory.c diff --git a/drivers/mtd/nand/spi/Makefile b/drivers/mtd/nand/spi/Makefile index b520fe634041..4ec973b8b6bf 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 := core.o ato.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o xtx.o +spinand-objs := core.o alliancememory.o ato.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o xtx.o obj-$(CONFIG_MTD_SPI_NAND) += spinand.o diff --git a/drivers/mtd/nand/spi/alliancememory.c b/drivers/mtd/nand/spi/alliancememory.c new file mode 100644 index 000000000000..7f4b90befd27 --- /dev/null +++ b/drivers/mtd/nand/spi/alliancememory.c @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Author: Mario Kicherer + */ + +#include +#include +#include + +#define SPINAND_MFR_ALLIANCEMEMORY 0x52 + +#define AM_STATUS_ECC_BITMASK (3 << 4) + +#define AM_STATUS_ECC_NONE_DETECTED (0 << 4) +#define AM_STATUS_ECC_1_CORRECTED (1 << 4) +#define AM_STATUS_ECC_1_DETECTED (2 << 4) +#define AM_STATUS_ECC_MAX_CORRECTED (3 << 4) + +static SPINAND_OP_VARIANTS(read_cache_variants, + SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X2_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 as5f34g04snd_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section > 3) + return -ERANGE; + + region->offset = 0x48; + region->length = 0x38; + + return 0; +} + +static int as5f34g04snd_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section) + return -ERANGE; + + /* + * It is unclear how many bytes are used for the bad block marker. We + * reserve one byte here. + */ + + region->offset = 1; + region->length = 0x48 - 1; + + return 0; +} + +static const struct mtd_ooblayout_ops as5f34g04snd_ooblayout = { + .ecc = as5f34g04snd_ooblayout_ecc, + .free = as5f34g04snd_ooblayout_free, +}; + +static int am_ecc_get_status(struct spinand_device *spinand, u8 status) +{ + switch (status & AM_STATUS_ECC_BITMASK) { + case AM_STATUS_ECC_NONE_DETECTED: + return 0; + + case AM_STATUS_ECC_1_CORRECTED: + return 1; + + case AM_STATUS_ECC_MAX_CORRECTED: + return 8; + + case AM_STATUS_ECC_1_DETECTED: + return -EBADMSG; + + default: + break; + } + + return -EINVAL; +} + +static const struct spinand_info alliancememory_spinand_table[] = { + SPINAND_INFO("AS5F34G04SND", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x2f), + NAND_MEMORG(1, 2048, 128, 64, 4096, 80, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&as5f34g04snd_ooblayout, + am_ecc_get_status)), +}; + +static int alliancememory_spinand_init(struct spinand_device *spinand) +{ + return 0; +} + +static const struct spinand_manufacturer_ops alliancememory_spinand_manuf_ops = { + .init = alliancememory_spinand_init, +}; + +const struct spinand_manufacturer alliancememory_spinand_manufacturer = { + .id = SPINAND_MFR_ALLIANCEMEMORY, + .name = "AllianceMemory", + .chips = alliancememory_spinand_table, + .nchips = ARRAY_SIZE(alliancememory_spinand_table), + .ops = &alliancememory_spinand_manuf_ops, +}; diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index dacd9c0e8b20..638391f77d8c 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -937,6 +937,7 @@ static const struct nand_ops spinand_ops = { }; static const struct spinand_manufacturer *spinand_manufacturers[] = { + &alliancememory_spinand_manufacturer, &ato_spinand_manufacturer, &gigadevice_spinand_manufacturer, ¯onix_spinand_manufacturer, diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h index 6d3392a7edc6..01be9f0f008a 100644 --- a/include/linux/mtd/spinand.h +++ b/include/linux/mtd/spinand.h @@ -260,6 +260,7 @@ struct spinand_manufacturer { }; /* SPI NAND manufacturers */ +extern const struct spinand_manufacturer alliancememory_spinand_manufacturer; extern const struct spinand_manufacturer ato_spinand_manufacturer; extern const struct spinand_manufacturer gigadevice_spinand_manufacturer; extern const struct spinand_manufacturer macronix_spinand_manufacturer; -- 2.34.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/