From nobody Wed Feb 11 02:43:39 2026 Received: from mx1.sberdevices.ru (mx2.sberdevices.ru [45.89.224.132]) (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 AA56D1D6DBC for ; Thu, 26 Dec 2024 13:56:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.89.224.132 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735221407; cv=none; b=Qmi2oE1cw8yfATKebnd3bCVDWNOEcCu3QMFRAURSxdUIQf5BDTqgWYFKzTgtId0MgL+PUiQseq+w9riPk8BWK/eEZ///T5DeBzdbtatRB+2h9m3s3feHLiH+3Z5qprb5gh2ecuBQmBU9c2fxXmtuPotwXrztkLuhymQt1JKoCjY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735221407; c=relaxed/simple; bh=keyR3lskfE6DwK5WIR4oP5fzufWtuStl4WDwN6McwMU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=TTuIwnNB3g/JyDq4FQa8k0ojXLlAC4TnczIFwvVBlLOpQKdz4tXwK8ivKv5vWU33f2EKE/iUHO/Vt06tVfnPmChrWwMhljoDMh5IYmn3mRRcFav+T90M8FP/Q0c56k66b+yFvvZPuf48pxpWXgCVBObF90R4Ap3apCMcgDuuN+U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=salutedevices.com; spf=pass smtp.mailfrom=salutedevices.com; dkim=pass (2048-bit key) header.d=salutedevices.com header.i=@salutedevices.com header.b=Py1Musc2; arc=none smtp.client-ip=45.89.224.132 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=salutedevices.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=salutedevices.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=salutedevices.com header.i=@salutedevices.com header.b="Py1Musc2" Received: from p-infra-ksmg-sc-msk02.sberdevices.ru (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id 05722120026; Thu, 26 Dec 2024 16:56:38 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru 05722120026 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=salutedevices.com; s=mail; t=1735221398; bh=P01YHTijqZC1FwRzPHK4svt6kZH0FcJqhN7b0poWTuo=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=Py1Musc2UZ+4VbIWPCCva8ry/CzZLsm/A8tXPm306Nii4eeK3ftbiI0Dxrcd2fAzz olu1T3i9C7dkstppBrV5IqdtysDUgb4u0S8B4BCVLfiEztJJ875csKa+cNAF2vdIKx gtA3NNZkCqfNL5F/RKkEpsxNlCWst4PBNIZlZv7ql+ux5sIaeDxdWe6gwRT+rvOvvM l9bMiWu33w3d4O4KRGPn8SLTK62Pskh7ToMazb1eqEx+WZ8zO05VCMBoyBSE2Nlz3L ybM6sK0XmVx4Bo3ZlT2Bs5X6YBOsrO6PydpX03F1LwlcWaeM684n//kdKQVXNWo6Eb Wkk606Dw/Zy2A== Received: from smtp.sberdevices.ru (p-i-exch-sc-m01.sberdevices.ru [172.16.192.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Thu, 26 Dec 2024 16:56:37 +0300 (MSK) From: Martin Kurbanov To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Ezra Buehler , Alexey Romanov , Frieder Schrempf CC: , , , Martin Kurbanov Subject: [PATCH v3 7/7] mtd: spinand: esmt: OTP access for F50{L,D}1G41LB Date: Thu, 26 Dec 2024 16:55:52 +0300 Message-ID: <20241226135623.43098-8-mmkurbanov@salutedevices.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241226135623.43098-1-mmkurbanov@salutedevices.com> References: <20241226135623.43098-1-mmkurbanov@salutedevices.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-ClientProxiedBy: p-i-exch-a-m2.sberdevices.ru (172.24.196.120) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 190075 [Dec 26 2024] X-KSMG-AntiSpam-Version: 6.1.1.7 X-KSMG-AntiSpam-Envelope-From: mmkurbanov@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 49 0.3.49 28b3b64a43732373258a371bd1554adb2caa23cb, {Tracking_from_domain_doesnt_match_to}, 127.0.0.199:7.1.2;smtp.sberdevices.ru:7.1.1,5.0.1;salutedevices.com:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1, FromAlignment: s X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2024/12/26 12:50:00 #26919000 X-KSMG-AntiVirus-Status: Clean, skipped Content-Type: text/plain; charset="utf-8" Support for OTP area access on ESMT F50L1G41LB and F50D1G41LB chips. Signed-off-by: Martin Kurbanov --- drivers/mtd/nand/spi/esmt.c | 70 +++++++++++++++++++++++++++++++++++-- 1 file changed, 68 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/spi/esmt.c b/drivers/mtd/nand/spi/esmt.c index 4597a82de23a4..481005c518f15 100644 --- a/drivers/mtd/nand/spi/esmt.c +++ b/drivers/mtd/nand/spi/esmt.c @@ -8,10 +8,15 @@ #include #include #include +#include =20 /* ESMT uses GigaDevice 0xc8 JECDEC ID on some SPI NANDs */ #define SPINAND_MFR_ESMT_C8 0xc8 =20 +#define ESMT_F50L1G41LB_CFG_OTP_PROTECT BIT(7) +#define ESMT_F50L1G41LB_CFG_OTP_LOCK \ + (CFG_OTP_ENABLE | ESMT_F50L1G41LB_CFG_OTP_PROTECT) + static SPINAND_OP_VARIANTS(read_cache_variants, SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), @@ -102,6 +107,65 @@ static const struct mtd_ooblayout_ops f50l1g41lb_oobla= yout =3D { .free =3D f50l1g41lb_ooblayout_free, }; =20 +static int f50l1g41lb_otp_info(struct spinand_device *spinand, size_t len, + struct otp_info *buf, size_t *retlen) +{ + if (len < sizeof(*buf)) + return -EINVAL; + + buf->locked =3D 0; + buf->start =3D 0; + buf->length =3D spinand_otp_size(spinand); + + *retlen =3D sizeof(*buf); + return 0; +} + +static int f50l1g41lb_otp_lock(struct spinand_device *spinand, loff_t from, + size_t len) +{ + struct spi_mem_op write_op =3D SPINAND_WR_EN_DIS_OP(true); + struct spi_mem_op exec_op =3D SPINAND_PROG_EXEC_OP(0); + u8 status; + int ret; + + ret =3D spinand_upd_cfg(spinand, ESMT_F50L1G41LB_CFG_OTP_LOCK, + ESMT_F50L1G41LB_CFG_OTP_LOCK); + if (!ret) + return ret; + + ret =3D spi_mem_exec_op(spinand->spimem, &write_op); + if (!ret) + goto out; + + ret =3D spi_mem_exec_op(spinand->spimem, &exec_op); + if (!ret) + goto out; + + ret =3D spinand_wait(spinand, + SPINAND_WRITE_INITIAL_DELAY_US, + SPINAND_WRITE_POLL_DELAY_US, + &status); + if (!ret && (status & STATUS_PROG_FAILED)) + ret =3D -EIO; + +out: + if (spinand_upd_cfg(spinand, ESMT_F50L1G41LB_CFG_OTP_LOCK, 0)) { + dev_warn(&spinand_to_mtd(spinand)->dev, + "Can not disable OTP mode\n"); + ret =3D -EIO; + } + + return ret; +} + +static const struct spinand_otp_ops f50l1g41lb_otp_ops =3D { + .info =3D f50l1g41lb_otp_info, + .lock =3D f50l1g41lb_otp_lock, + .read =3D spinand_otp_read, + .write =3D spinand_otp_write, +}; + static const struct spinand_info esmt_c8_spinand_table[] =3D { SPINAND_INFO("F50L1G41LB", SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x01, 0x7f, @@ -112,7 +176,8 @@ static const struct spinand_info esmt_c8_spinand_table[= ] =3D { &write_cache_variants, &update_cache_variants), 0, - SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL)), + SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL), + SPINAND_OTP_INFO(28, 2, &f50l1g41lb_otp_ops)), SPINAND_INFO("F50D1G41LB", SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x11, 0x7f, 0x7f, 0x7f), @@ -122,7 +187,8 @@ static const struct spinand_info esmt_c8_spinand_table[= ] =3D { &write_cache_variants, &update_cache_variants), 0, - SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL)), + SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL), + SPINAND_OTP_INFO(28, 2, &f50l1g41lb_otp_ops)), SPINAND_INFO("F50D2G41KA", SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x51, 0x7f, 0x7f, 0x7f), --=20 2.43.0