From nobody Tue Feb 10 07:40:07 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 DF22D13AA2E for ; Mon, 27 Jan 2025 15:39:22 +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=1737992369; cv=none; b=FnhaFuhwb3AVdSv98QBXqOBVPNBGwnk+nVxqxPvMpXcDfchIskQcWzZxCxvSzFUZSixnO7Duh4Uz9QIvJnySibyuu+MGTqRLGVhUB1ETa6GLFwoy27JxB/DpddHpiaVVT/DcicEXf5XXAjsVMtVPN3LUXJPGgOIqWygEE21Ulpk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737992369; c=relaxed/simple; bh=dCDkE8mlpAZLPuZwByvCoDOhZhLItTlU0iPdvM8Qb70=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KoKDOx9cJmj3Pd8EeYPcy4soJdP+GCarJAlwneCJP16v31k5E5Sj12Mg4lWqlccs+hDfAKcGyVoh645o5FU0rPuViCH4oGVWgeVqgPAi1StEdBB2eUgjiOeinf8wyck4eBfIEbihS6FdMpKkxoU7UpiP6lZniQWoFXJjzra8ySs= 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=Pqo3cLMa; 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="Pqo3cLMa" Received: from p-infra-ksmg-sc-msk02.sberdevices.ru (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id 51E3912000D; Mon, 27 Jan 2025 18:39:15 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru 51E3912000D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=salutedevices.com; s=mail; t=1737992355; bh=kAYvtxBqe5R068u7fiS5JpXkwrfKKqbubvRmbXnB2DA=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=Pqo3cLMaBkW1EjUhHLPkT7K1aCNTthlt7HzLPGE0qaFQioUhqlIpIqJCVGW8izSKt xz6LUTM2Pi6iJr2Hy5FTYQwJesKcIQu6qS591AdyhueJmuQAPIcxVrESzgU+reJByp KdvHr47XQZSkfikHvi6V8Bp3vGOrRgV07yVSxLPkWwskmy79QovlARROI+c+WoWj5Z TeUkld5W6WTQU+9DUusWtG22T4hxvbN3W/pNkYz6g+sfvQFLZtX8B094WySHTt0Dch KwgLTySeU6Aut2TKCv/l0ynkDNUDcYfUdHNcIVARArmBGyeogKNaEpsJHZHc3Ya4sJ oXRaCX4Sj1GkQ== 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; Mon, 27 Jan 2025 18:39:15 +0300 (MSK) From: Martin Kurbanov To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Ezra Buehler , Cheng Ming Lin , Pratyush Yadav , Daniel Golle , Frieder Schrempf , Alexey Romanov CC: , , , Martin Kurbanov Subject: [PATCH v4 6/6] mtd: spinand: esmt: OTP access for F50{L,D}1G41LB Date: Mon, 27 Jan 2025 18:38:24 +0300 Message-ID: <20250127153848.199526-7-mmkurbanov@salutedevices.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250127153848.199526-1-mmkurbanov@salutedevices.com> References: <20250127153848.199526-1-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-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 190599 [Jan 27 2025] 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: 50 0.3.50 df4aeb250ed63fd3baa80a493fa6caee5dd9e10f, {Tracking_from_domain_doesnt_match_to}, salutedevices.com:7.1.1;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;smtp.sberdevices.ru:5.0.1,7.1.1, 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: 2025/01/27 13:50:00 #27131010 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 | 90 ++++++++++++++++++++++++++++++++++++- 1 file changed, 88 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/spi/esmt.c b/drivers/mtd/nand/spi/esmt.c index 4597a82de23a4..c555ce616b65c 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 +107,83 @@ 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, bool user) +{ + if (len < sizeof(*buf)) + return -EINVAL; + + buf->locked =3D 0; + buf->start =3D 0; + buf->length =3D user ? spinand_user_otp_size(spinand) : + spinand_fact_otp_size(spinand); + + *retlen =3D sizeof(*buf); + return 0; +} + +static int f50l1g41lb_fact_otp_info(struct spinand_device *spinand, size_t= len, + struct otp_info *buf, size_t *retlen) +{ + return f50l1g41lb_otp_info(spinand, len, buf, retlen, false); +} + +static int f50l1g41lb_user_otp_info(struct spinand_device *spinand, size_t= len, + struct otp_info *buf, size_t *retlen) +{ + return f50l1g41lb_otp_info(spinand, len, buf, retlen, true); +} + +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_user_otp_ops f50l1g41lb_user_otp_ops =3D { + .info =3D f50l1g41lb_user_otp_info, + .lock =3D f50l1g41lb_otp_lock, + .read =3D spinand_user_otp_read, + .write =3D spinand_user_otp_write, +}; + +static const struct spinand_fact_otp_ops f50l1g41lb_fact_otp_ops =3D { + .info =3D f50l1g41lb_fact_otp_info, + .read =3D spinand_fact_otp_read, +}; + static const struct spinand_info esmt_c8_spinand_table[] =3D { SPINAND_INFO("F50L1G41LB", SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x01, 0x7f, @@ -112,7 +194,9 @@ 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_USER_OTP_INFO(28, 2, &f50l1g41lb_user_otp_ops), + SPINAND_FACT_OTP_INFO(2, 0, &f50l1g41lb_fact_otp_ops)), SPINAND_INFO("F50D1G41LB", SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x11, 0x7f, 0x7f, 0x7f), @@ -122,7 +206,9 @@ 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_USER_OTP_INFO(28, 2, &f50l1g41lb_user_otp_ops), + SPINAND_FACT_OTP_INFO(2, 0, &f50l1g41lb_fact_otp_ops)), SPINAND_INFO("F50D2G41KA", SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x51, 0x7f, 0x7f, 0x7f), --=20 2.43.0