From nobody Wed Feb 11 03:48:34 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 D89B61D2F40 for ; Tue, 27 Aug 2024 17:49:52 +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=1724780994; cv=none; b=JDeeTjTAl1qwEFK+9gllQNUnrXyY/qoitJ5iQN2JSOZtgaXmnefeelL97mRYu3ab1aanQVkRRI4DBPNM1RMVoO+mbZKTA8krymo+18fIFeO2rFdol6T6GaIjA1f7xUczTJm5nNrme/qx6F5z8+8XQL11RWLcUuIbu6g2+WY/EFk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724780994; c=relaxed/simple; bh=Ejaw2UcHOwsVJe6Dop7ZufRwkMAyG6vDZ5UoXcEF50I=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=eSiqPIVDN4INoiYfgksMO6n94mqFXGmWRb5EmlVeJDEpItq5XpZZKtMo2j0Irf6y2YRkE8eQ0pRIJxPv1gW7O8wlnBTnUYzLcROTIslYAQAPlxI2vN/c8llRckQH/2MeMJ40EQX1ZOeMtAaOlBk7pfUo7Xzeod5UE2r/FpT+WA4= 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=IO8gKJpx; 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="IO8gKJpx" Received: from p-infra-ksmg-sc-msk02.sberdevices.ru (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id B5D4512000C; Tue, 27 Aug 2024 20:49:43 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru B5D4512000C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=salutedevices.com; s=mail; t=1724780983; bh=YcHG6WWlH0ElSTuFNLEX2yBk3OYum4OtJYp6S6fudRY=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=IO8gKJpxDrWfFSZC+POojJ4gYkYz8ToI8HKe/V0aCZsbiYyfmgvrvqE7EJnEaBmnE UqoN4pKyUq0KVnQ2GUWLluFw6XKsVLCL4mVQkFU1WByCV9ria/mW6/rTN+wFfiPZa1 VDD4C4yD+GHIBD4RAWkiGH6omFV/v9h/+USHKbuIQZpS/6fH3mK8fhNKtAgHJ28icm x5iw5VF/9kjHVWXZMnRsT2d9ZSSOhNzeyYUhqqVWtZX6Cs2SNWtgDiWXfO2WTUf57/ sbYNoFXhDFqFQvNrhqgwzTm/kpE2vScv9iOPTLsqdkj4ScAPa1HM2mbCwbecfuz3av 1kgVjCVEtj/+A== Received: from smtp.sberdevices.ru (p-i-exch-sc-m02.sberdevices.ru [172.16.192.103]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Tue, 27 Aug 2024 20:49:43 +0300 (MSK) From: Martin Kurbanov To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Mika Westerberg , Michael Walle , "Mark Brown" , Chia-Lin Kao , "Md Sadre Alam" , Ezra Buehler , Sridharan S N , Frieder Schrempf , Alexey Romanov CC: , , , Martin Kurbanov Subject: [PATCH v2 5/5] mtd: spinand: esmt: OTP access for F50{L,D}1G41LB Date: Tue, 27 Aug 2024 20:49:03 +0300 Message-ID: <20240827174920.316756-6-mmkurbanov@salutedevices.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240827174920.316756-1-mmkurbanov@salutedevices.com> References: <20240827174920.316756-1-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-m1.sberdevices.ru (172.24.196.116) To p-i-exch-a-m1.sberdevices.ru (172.24.196.116) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 187372 [Aug 27 2024] X-KSMG-AntiSpam-Version: 6.1.0.4 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: 27 0.3.27 71302da218a62dcd84ac43314e19b5cc6b38e0b6, {Tracking_from_domain_doesnt_match_to}, d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;smtp.sberdevices.ru:5.0.1,7.1.1;salutedevices.com:7.1.1;127.0.0.199:7.1.2, 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: 2024/08/27 16:21:00 #26445643 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 | 69 +++++++++++++++++++++++++++++++++++-- 1 file changed, 67 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/spi/esmt.c b/drivers/mtd/nand/spi/esmt.c index 4597a82de23a4..1806e9d48c176 100644 --- a/drivers/mtd/nand/spi/esmt.c +++ b/drivers/mtd/nand/spi/esmt.c @@ -12,6 +12,13 @@ /* 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) + +#define ESMT_F50L1G41LB_PAGE_SIZE 2112 +#define ESMT_F50L1G41LB_OTP_PAGES 28 + 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 +109,60 @@ 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 ESMT_F50L1G41LB_PAGE_SIZE * ESMT_F50L1G41LB_OTP_PAGES; + + *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); + 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, 10, 5, NULL); + if (!ret) + goto out; + +out: + if (spinand_upd_cfg(spinand, ESMT_F50L1G41LB_CFG_OTP_LOCK, 0)) { + WARN(1, "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 +173,9 @@ 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(ESMT_F50L1G41LB_OTP_PAGES, + &f50l1g41lb_otp_ops)), SPINAND_INFO("F50D1G41LB", SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x11, 0x7f, 0x7f, 0x7f), @@ -122,7 +185,9 @@ 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(ESMT_F50L1G41LB_OTP_PAGES, + &f50l1g41lb_otp_ops)), SPINAND_INFO("F50D2G41KA", SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x51, 0x7f, 0x7f, 0x7f), --=20 2.43.2