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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-141019b41d9sm3833652c88.5.2026.08.06.23.43.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Aug 2026 23:43:47 -0700 (PDT) From: Md Sadre Alam To: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, tudor.ambarus@linaro.org, s-k6@ti.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Cc: varadarajan.narayanan@oss.qualcomm.com Subject: [PATCH 1/2] mtd: spinand: winbond: add support for W25N04LW Date: Fri, 7 Aug 2026 12:13:38 +0530 Message-Id: <20260807064339.1632249-2-md.alam@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260807064339.1632249-1-md.alam@oss.qualcomm.com> References: <20260807064339.1632249-1-md.alam@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Authority-Analysis: v=2.4 cv=RpX16imK c=1 sm=1 tr=0 ts=6a757ea5 cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=WBRZZNzXIX_3tYRKepwA:9 a=x9snwWr2DeNwDh03kgHS:22 X-Proofpoint-ORIG-GUID: 5bExX6RLyobWBWIgqN4VC7Su5_tOQ-e6 X-Proofpoint-GUID: 5bExX6RLyobWBWIgqN4VC7Su5_tOQ-e6 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA3MDA0OCBTYWx0ZWRfX+oG56hgY7G1W E3OiLKQY+hpx6IAnx5qX/3gyhzHi128/NQKdszu8GUP3HDckszsVK0j68UZaFhZ41zKdNIuLGSp MUoc02b1Vy3uLA/VsijrcKp/YjWGEh/A+/pvT6xvRH+lf/TD3+yDAnbYoi9kAKqD8Ou6xE3mWS1 KXlockE0WSYajQO7BJlqgVmGH+APJIuEf41TZ8hL+Oh129mQjJahTxURX9/wkp3yZabxi5H4jah Clh0SM9oBxU4HjJbdYTa4QN+Nc+B6Av2K2Y+isPif3pAZtHQ3IALzQV+3KnyeNcQ3QZbxp7H1Nu E7whabe0nlFcyr1itzzxdzM23ljdSiamuJjvvHtqhX4bNl6W8ZYb8NCV+8DBnx2PeId2XSjEaA1 2BVX5sdqbHoVRZ78J5LD9mYCT1ds7mIZ5TyDLJeD9T/0eptJ8M/Poecd9t1hwAtvEPmil+UB9FL l9HfZRJEzSPJvJJIUUg== X-Proofpoint-Spam-Info: AW1haW4tMjYwODA3MDA0OCBTYWx0ZWRfX+JZvPrP4as4q XgzTqPIb4wP/Z4p8rhSbDFrB0gUksYFS1eOuQ2vFnjslCDkHyaIUOb0ZJ9aAigSCFeM1ys13ayI xXk4Ghb9sVEcpZaPxfvFAPGewtW4ueY= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-07_01,2026-08-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 clxscore=1015 impostorscore=0 suspectscore=0 spamscore=0 adultscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608070048 Content-Type: text/plain; charset="utf-8" Add support for Winbond W25N04LW 4Gbit SPI-NAND. It has 8-bit on-die ECC and a 4096+256 byte page (4096 byte main area, 128 byte usable OOB once on-chip ECC hides the 128 byte parity area), organized as 2048 blocks of 64 pages each, unlike the existing 2048 byte page W25N04KV/W25N04KW parts. Signed-off-by: Md Sadre Alam --- drivers/mtd/nand/spi/winbond.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c index 9b78c1e6cbc9..b0147b7cb76f 100644 --- a/drivers/mtd/nand/spi/winbond.c +++ b/drivers/mtd/nand/spi/winbond.c @@ -345,6 +345,29 @@ static const struct mtd_ooblayout_ops w25n02kv_ooblayo= ut =3D { .free =3D w25n02kv_ooblayout_free, }; =20 +static int w25n04lw_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + return -ERANGE; +} + +static int w25n04lw_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section) + return -ERANGE; + + region->offset =3D 2; + region->length =3D mtd->oobsize - 2; + + return 0; +} + +static const struct mtd_ooblayout_ops w25n04lw_ooblayout =3D { + .ecc =3D w25n04lw_ooblayout_ecc, + .free =3D w25n04lw_ooblayout_free, +}; + static int w25n01jw_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *region) { @@ -768,6 +791,15 @@ static const struct spinand_info winbond_spinand_table= [] =3D { &update_cache_variants), 0, SPINAND_ECCINFO(&w25n02kv_ooblayout, w25n02kv_ecc_get_status)), + SPINAND_INFO("W25N04LW", /* 1.8V */ + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xb2, 0x23), + NAND_MEMORG(1, 4096, 128, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + 0, + SPINAND_ECCINFO(&w25n04lw_ooblayout, w25n02kv_ecc_get_status)), SPINAND_INFO("W35N04JW", /* 1.8V */ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xdf, 0x23), NAND_MEMORG(1, 4096, 128, 64, 512, 10, 1, 4, 1), --=20 2.34.1 From nobody Tue Sep 29 14:54:43 2026 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 044D344C4E4 for ; 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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-141019b41d9sm3833652c88.5.2026.08.06.23.43.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Aug 2026 23:43:51 -0700 (PDT) From: Md Sadre Alam To: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, tudor.ambarus@linaro.org, s-k6@ti.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Cc: varadarajan.narayanan@oss.qualcomm.com Subject: [PATCH 2/2] mtd: spinand: winbond: add support for W25N01KW and W25N02LW Date: Fri, 7 Aug 2026 12:13:39 +0530 Message-Id: <20260807064339.1632249-3-md.alam@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260807064339.1632249-1-md.alam@oss.qualcomm.com> References: <20260807064339.1632249-1-md.alam@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA3MDA0OCBTYWx0ZWRfX3UxizDDVGwn1 5VB2jNFhspi76vvlxQizv2bAAG/FtXqS2p4vnGyAO3GU1M2UAZsAG8GgoOM0jQwCXhv9BrLxy8U LWYY5uzmUm5leRKtv6Cj1MkiaPMtN7JiYQv8zXUm8LN3+z8gS6alNCOCCLf3iVPP2zZIWh0myT9 s1jShyNGUxd44y9ofJ9RIHrdI/MwHJAmOFmG0ICsoUvITAYB5Y6YQaPcrlDw++6b3q8ff3urkcX zCG5BgVhFugu9fHKssvz6bLN+TSWE6IJTzL3isQOmM7TmfegaAJwsh7j1ejan2GXA1v4ENo1oDE 0FIWd0X5U7MZydsgkZ+gB5/oNOcWEEWH+l0sCrnEWmlzqSHM6nBIYgA2KrtTsjxRKSpHAHJhV6K pdEtynhr/WF0bO15kbwh51fvkSvB0AmzNP12bBQEwjVyYl/+UKhOutdDL22ZzKP2mbycREkfhaB 6mWaMgVw2A0phszn1rw== X-Proofpoint-Spam-Info: AW1haW4tMjYwODA3MDA0OCBTYWx0ZWRfX6if3MA2kEjbw kVLj4BGbgxhRgP9WHY45LUQ+7JRtkQqUJePKiwWArTX8xI8R+aN6aAA/ABENa8dvWK6XTF367gx y5RN+2DIN4+4Vew3tqFEkNpNU1qXXZ0= X-Proofpoint-ORIG-GUID: BIhnDyvlGXSd8Xchrb0PyYlWjKscMLK5 X-Proofpoint-GUID: BIhnDyvlGXSd8Xchrb0PyYlWjKscMLK5 X-Authority-Analysis: v=2.4 cv=e5Y2j6p/ c=1 sm=1 tr=0 ts=6a757ea8 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=skpaqr9hH7cb6v_Vb3kA:9 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-07_01,2026-08-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 adultscore=0 spamscore=0 priorityscore=1501 impostorscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608070048 Content-Type: text/plain; charset="utf-8" Add support for the Winbond W25N01KW and W25N02LW SPI-NAND devices. The W25N01KW shares the same geometry, OOB layout, and ECC status handling as the existing W25N01KV, while the W25N02LW matches the existing W25N02KV/W25N02KW devices and reuses their OOB layout and ECC status callback. Signed-off-by: Md Sadre Alam --- drivers/mtd/nand/spi/winbond.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c index b0147b7cb76f..3bffa13bfa68 100644 --- a/drivers/mtd/nand/spi/winbond.c +++ b/drivers/mtd/nand/spi/winbond.c @@ -704,6 +704,15 @@ static const struct spinand_info winbond_spinand_table= [] =3D { &update_cache_variants), 0, SPINAND_ECCINFO(&w25n01kv_ooblayout, w25n02kv_ecc_get_status)), + SPINAND_INFO("W25N01KW", /* 1.8V */ + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xbe, 0x21), + NAND_MEMORG(1, 2048, 96, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + 0, + SPINAND_ECCINFO(&w25n01kv_ooblayout, w25n02kv_ecc_get_status)), SPINAND_INFO("W35N01JW", /* 1.8V */ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xdc, 0x21), NAND_MEMORG(1, 4096, 128, 64, 512, 10, 1, 1, 1), @@ -759,6 +768,15 @@ static const struct spinand_info winbond_spinand_table= [] =3D { &update_cache_variants), 0, SPINAND_ECCINFO(&w25n02kv_ooblayout, w25n02kv_ecc_get_status)), + SPINAND_INFO("W25N02LW", /* 1.8V */ + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x12, 0x22), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + 0, + SPINAND_ECCINFO(&w25n02kv_ooblayout, w25n02kv_ecc_get_status)), SPINAND_INFO("W35N02JW", /* 1.8V */ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xdf, 0x22), NAND_MEMORG(1, 4096, 128, 64, 512, 10, 1, 2, 1), --=20 2.34.1