From patchwork Wed Mar 26 07:21:37 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 14029776 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EC71EC3600D for ; Wed, 26 Mar 2025 07:25:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=SDVTEpWPOWdUF65/A/lZ6YAnSi06TM6dEB7m1YFVw3o=; b=w4zmjdBZFszXXDVBg75AS+x0OQ 2bc2qC+gkdeuHp0/9NqXRfj2U7iGBIHTZ8H1o7AibpepGcnhZ9/+hS9On91NHx2fJDo2HC2Z7Mlv2 C87H35rDD3kdYI67DzyAY9hjXaCO9/6McQ07fgISDJxZ9MDBscTPe9GUIiSgEi0uy7bWYuheNOAz7 S2VR5wXPCpx8gkzW98pRjEDXg9SO40rLpsIhCCK3/pi66s2Jp/ErgjplLRgiYCFwYQbkpRMof/Mej elNAYLxs6PXIZulA5Wa1lmiMN2PE5DrbcZvaZ2neKpqeQJ2k7NE4j0aW/JJYuVaGHgUixEhHS4I7d FFRvkKFg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1txL91-00000007m0p-3ORP; Wed, 26 Mar 2025 07:25:47 +0000 Received: from esa.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.98.1 #2 (Red Hat Linux)) id 1txL5j-00000007lOh-2fdn; Wed, 26 Mar 2025 07:22:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1742973744; x=1774509744; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=LkdvidHwFI1XZ/fCNSF3hN2TCT+VGgb2P8S9pghKT6c=; b=sMU3a2KSS3KbMpiRDMATz4RbonU6wnyhPIMJN51RhJ3SYRGcLQ1dI9Q8 Yfz6bFTgXsnT503Njc3D3UXun2ItBjFStPf51uPV7emoke00dDdztkL1h l/Kzlc0TPF3OjoNicNb0majB8Z0sPpXuliuYL5YvSCA7YBbzM+dCUlwKy NRZzjhh/wpIJ6DfC/hlq+nvSGkJX41XEz5SqVzvxJS3s4KDnGgi6TeCBH aUjoSi9sFe8Qa5Vbyf59+0A/EouhbshDVo4hhF+gm3mZUmsLvm7Oo8ICE 7hAAw8q4Zh7To2NDTZ1IQ/QlTByDDb0as7NZVF0A4tj5F5aNh8svqGihx Q==; X-CSE-ConnectionGUID: QApF+UAWRZutY2upgn7tGQ== X-CSE-MsgGUID: rG3UIBc2SbONS57bMchvBg== X-IronPort-AV: E=Sophos;i="6.14,277,1736838000"; d="scan'208";a="271100162" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa5.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 26 Mar 2025 00:22:22 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.44; Wed, 26 Mar 2025 00:21:51 -0700 Received: from che-lt-i67131.microchip.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.44 via Frontend Transport; Wed, 26 Mar 2025 00:21:44 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , , , CC: Subject: [PATCH v2 0/3] Read MAC Address from SST vendor specific SFDP region Date: Wed, 26 Mar 2025 12:51:37 +0530 Message-ID: <20250326072140.172244-1-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250326_002223_808749_C18DF364 X-CRM114-Status: UNSURE ( 9.40 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patch series adds support to parse the SFDP SST vendor map, read and store the EUI-48 and EUI-64 Address (if its programmed) using the resource-managed devm_kcalloc which will be freed on driver detach. Register EUI addresses into NVMEM framework for the net drivers to access them using nvmem properties. This change ensures consistent and reliable MAC address retrieval from QSPI benefiting boards like the sama5d29 curiosity and sam9x75 curiosity. -------- changes in v2: - 1/3 - parse the SST vendor table, read and store the addresses into a resource - managed space. Register the addresses into NVMEM framework - 2/3 - add support to update the QSPI partition into 'fixed-partition' binding -------- Manikandan Muralidharan (3): mtd: spi-nor: sfdp: parse SFDP SST vendor map and register EUI addresses into NVMEM framework ARM: dts: microchip: sama5d29_curiosity: update the QSPI partitions using "fixed-partition" binding ARM: dts: microchip: sama5d29_curiosity: Add nvmem-layout in QSPI for EUI48 MAC Address .../dts/microchip/at91-sama5d29_curiosity.dts | 62 ++++--- drivers/mtd/spi-nor/sfdp.c | 161 ++++++++++++++++++ include/linux/mtd/spi-nor.h | 7 + 3 files changed, 206 insertions(+), 24 deletions(-)