From nobody Sun May 10 16:28:12 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32A04C433EF for ; Fri, 29 Apr 2022 12:11:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1358944AbiD2MOg (ORCPT ); Fri, 29 Apr 2022 08:14:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41716 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358942AbiD2MOa (ORCPT ); Fri, 29 Apr 2022 08:14:30 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EE16AB6D0E for ; Fri, 29 Apr 2022 05:11:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1651234273; x=1682770273; h=from:to:cc:subject:date:message-id; bh=KAe00ZDLt5C8s6QUvOWbvZ3TH/GdDmxKdKTGsP7hSVk=; b=RaZQa9lSxIQQUatI2VuUxO1Pf5r9km04Bjs1wEpmegX8fruoptiKPfoG jXI/z0n2+vMt9isLpovgN4mcU0qal0nU510BEvNN86EJdw7Dk1hmDvQbY oynOa9REeAXFd+5dVHK6k4d9MsjOIfGd0L7HXlqrwNFyUcg+lv9CimQjo Y=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 29 Apr 2022 05:11:13 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 29 Apr 2022 05:11:11 -0700 X-QCInternal: smtphost Received: from c-sbhanu-linux.qualcomm.com ([10.242.50.201]) by ironmsg02-blr.qualcomm.com with ESMTP; 29 Apr 2022 17:40:50 +0530 Received: by c-sbhanu-linux.qualcomm.com (Postfix, from userid 2344807) id E42E5E32; Fri, 29 Apr 2022 17:40:49 +0530 (IST) From: Shaik Sajida Bhanu To: tudor.ambarus@microchip.com, p.yadav@ti.com, michael@walle.cc, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, quic_asutoshd@quicinc.com, quic_rampraka@quicinc.com, quic_pragalla@quicinc.com, quic_sartgarg@quicinc.com, quic_nitirawa@quicinc.com, quic_sayalil@quicinc.com, Shaik Sajida Bhanu Subject: [PATCH V9] mtd: spi-nor: winbond: add support for W25Q512NW-IM Date: Fri, 29 Apr 2022 17:40:39 +0530 Message-Id: <1651234239-32217-1-git-send-email-quic_c_sbhanu@quicinc.com> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Add support for winbond W25Q512NW-IM chip. Below are the tests done: 1. Verified flashing binary image on spi card using flashrom tool. 2. Verified OTP support, below are the test results: localhost / # cat /sys/bus/platform/devices/soc\@0/88dc000.spi/spi_master/spi16/ spi16.0/spi-nor/jedec_id ef8020 localhost / # cat /sys/bus/platform/devices/soc\@0/88dc000.spi/spi_master/spi16/ spi16.0/spi-nor/manufacturer winbond localhost / # cat /sys/bus/platform/devices/soc\@0/88dc000.spi/spi_master/spi16/ spi16.0/spi-nor/partname w25q512nwm localhost / # hexdump /sys/bus/platform/devices/soc\@0/88dc000.spi/spi_master/sp i16/spi16.0/spi-nor/sfdp 0000000 4653 5044 0106 ff01 0600 1001 0080 ff00 0000010 0084 0201 00d0 ff00 ffff ffff ffff ffff 0000020 6800 6c65 6f6c 7720 726f 646c ffff ffff 0000030 ffff ffff ffff ffff ffff ffff ffff ffff * 0000080 20e5 fffb ffff 1fff eb44 6b08 3b08 bb42 0000090 fffe ffff ffff 0000 ffff eb40 200c 520f 00000a0 d810 0000 0233 00a6 e781 d914 63e9 3376 00000b0 757a 757a bdf7 5cd5 f719 ff5d 70e9 a5f9 00000c0 ffff ffff ffff ffff ffff ffff ffff ffff 00000d0 0aff fff0 ff21 ffdc 00000d8 localhost / # md5sum /sys/bus/platform/devices/soc\@0/88dc000.spi/spi_master/spi 16/spi16.0/spi-nor/sfdp 106d89d6c049110bc94c01517cb4ce24 /sys/bus/platform/devices/soc@0/88dc000.spi/ spi_master/spi16/spi16.0/spi-nor/sfdp Signed-off-by: Shaik Sajida Bhanu Reviewed-by: Doug Anderson Reviewed-by: Michael Walle --- Changes since V1: - Added space before name of the flash part as suggested by Doug. Changes since V2: - Updated chip name as w25q512nwm as suggested by Doug. Changes since V3: - Updated flash_info flags passing according to below patch. Changes since V4: - Added OTP support for SPI card as suggested by Michael Walle. - Updated SFDP flags passing as suggested by Pratyush Yadav. Changes since V5: - Reordered flags passing info for spi nor as suggested by Michael Walle. Changes since V6: - Updated commit subject and added md5sum in commit as suggested by Michael Walle. - Reordered flags passing info for spi nor which has missed in V5 patch as suggested by Michael Walle. Changes since V7: - Updated commit message with test cases info as suggested by Tudor Ambarus. Changes since V8: - Removed flash lock flags as lock not working as excepted. --- drivers/mtd/spi-nor/winbond.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index fe80dff..f2b625a 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -124,6 +124,9 @@ static const struct flash_info winbond_nor_parts[] =3D { { "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024) NO_SFDP_FLAGS(SECT_4K | SPI_NOR_QUAD_READ | SPI_NOR_DUAL_READ) }, + { "w25q512nwm", INFO(0xef8020, 0, 64 * 1024, 1024) + PARSE_SFDP + OTP_INFO(256, 3, 0x1000, 0x1000) }, { "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024) NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, --=20 QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member=20 of Code Aurora Forum, hosted by The Linux Foundation