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Tue, 13 Jul 2021 08:06:47 -0500 Received: from DLEE107.ent.ti.com (157.170.170.37) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Tue, 13 Jul 2021 08:06:47 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Tue, 13 Jul 2021 08:06:47 -0500 Received: from LT5CD112GSQZ.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 16DD5daN109825; Tue, 13 Jul 2021 08:06:43 -0500 From: Apurva Nandan To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Mark Brown , Patrice Chotard , Boris Brezillon , , , CC: Apurva Nandan , Pratyush Yadav Subject: [PATCH 13/13] mtd: spinand: Add support for Winbond W35N01JW SPI NAND flash Date: Tue, 13 Jul 2021 13:05:38 +0000 Message-ID: <20210713130538.646-14-a-nandan@ti.com> X-Mailer: git-send-email 2.31.1.windows.1 In-Reply-To: <20210713130538.646-1-a-nandan@ti.com> References: <20210713130538.646-1-a-nandan@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210713_060654_062880_50FB923A X-CRM114-Status: GOOD ( 16.61 ) 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 Winbond W35N01JW is SPI NAND flash supporting Octal DTR SPI protocol. Add op_vairants for W35N01JW, which include the Octal DTR read/write page ops as well. Add W35N01JW's oob layout functions for the 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 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 = { -- 2.17.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/