From patchwork Wed Mar 26 07:21:40 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 14029779 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 15381C3600D for ; Wed, 26 Mar 2025 07:33:02 +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:References:In-Reply-To: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:List-Owner; bh=EJAAFM/ozbhu8fFwsPrVwYxl3xWBhJTFYD/emMptqeY=; b=ihgSMFdOfJPO8pbOP6SXbTkF+N FZ+omBr3nWu11+QvTcKD2I0dEdzWL00EhGeSyiAnhNL8THDfQI1e3FogIRja86BA7jaw9SYAkWQW2 PiWzNbG/dpUgzGDotZeW8YQksXunvknbbWrz556cJp2Au0FbjVyhORdq45VLR3BgZWvYzX7OuZZ+N P6QngpfMTVJhjQVXIMDzhHs9UU+joiu//nIrOmEzf3Qux2bGopPkRZE8gDXvJK9gG0J/0AZ6p5d5D UyEVwrkIS3IBKA+KhxbFnZHbHvenpDToNV8wSCwV8A/msCJD1sEMt+dRL7XIV1mXgarZ083xl7fQr hWoeT1pA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1txLFq-00000007n9w-0DAk; Wed, 26 Mar 2025 07:32:50 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.98.1 #2 (Red Hat Linux)) id 1txL6F-00000007lXD-1rQs; Wed, 26 Mar 2025 07:22:56 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1742973775; x=1774509775; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=sxCn43o1ihJ7Lubb3/UrAKd1VNrvg+hbLnroVKlybMg=; b=Kea5o65RjF8uZ+X3sOeeu8HWlGVZN44+v7CkYPNxqbP5HkxXaC1FIUFY 9vt3Q/8TOShcbhHJEsuelh8CAfLM/1F5B9RRm6OET3VrbmE/VUoByH60x OP3ZbiVTQI1ErJ9vnVlqYeexxPJYExD8DWkpOqT1YYDyxS0xJG3I6t6+d p5uFSUXd/2bqEBxg45i4DuzXdArl0F3W3WjRm3lP+XKVM/bSbpLqKwM6i NL5PYWgZJXvP3e+mIwAwycyONEQ/tpcBhFPuhDSXfxKtJly5tFGtLaadN mwJRmhr88By0pqssMiCP7eDrPymORRqXBTKprXk/gkCjOwne9dyN5rTYc A==; X-CSE-ConnectionGUID: fNQgDXBrQGWw5+E3ZnPSgg== X-CSE-MsgGUID: qSyP69NURbKOY18dqN0TFw== X-IronPort-AV: E=Sophos;i="6.14,277,1736838000"; d="scan'208";a="40182266" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 26 Mar 2025 00:22:52 -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 00:22:27 -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 00:22:20 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , , , CC: Subject: [PATCH v2 3/3] ARM: dts: microchip: sama5d29_curiosity: Add nvmem-layout in QSPI for EUI48 MAC Address Date: Wed, 26 Mar 2025 12:51:40 +0530 Message-ID: <20250326072140.172244-4-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250326072140.172244-1-manikandan.m@microchip.com> References: <20250326072140.172244-1-manikandan.m@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250326_002255_596058_6471E05D X-CRM114-Status: GOOD ( 11.93 ) 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 Add nvmem-layout in QSPI to read the EUI48 Mac address by the net drivers using the nvmem property.The offset is set to 0x0 since the factory programmed address is available in the resource managed space and the size determine if the requested address is of EUI48 (0x6) or EUI-64 (0x8) type. This is useful for cases where U-Boot is skipped and the Ethernet MAC address is needed to be configured by the kernel Signed-off-by: Manikandan Muralidharan --- .../arm/boot/dts/microchip/at91-sama5d29_curiosity.dts | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts index 35756cc01e68..6c5ff08f0b3f 100644 --- a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts +++ b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts @@ -478,6 +478,16 @@ flash@0 { label = "atmel_qspi1"; status = "okay"; + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + mac_address_eui48: mac-address@0 { + reg = <0x0 0x6>; + }; + }; + partitions { compatible = "fixed-partitions"; #address-cells = <1>;