From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8F43C4727E for ; Thu, 1 Oct 2020 08:36:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7EED220738 for ; Thu, 1 Oct 2020 08:36:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="NgtWmCrf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731243AbgJAIgS (ORCPT ); Thu, 1 Oct 2020 04:36:18 -0400 Received: from mailout2.w1.samsung.com ([210.118.77.12]:45117 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725892AbgJAIgS (ORCPT ); Thu, 1 Oct 2020 04:36:18 -0400 Received: from eucas1p1.samsung.com (unknown [182.198.249.206]) by mailout2.w1.samsung.com (KnoxPortal) with ESMTP id 20201001083616euoutp02c9c496347da66331fcf5ee2cb947fc7f~50WV7dqVQ1018010180euoutp02J; Thu, 1 Oct 2020 08:36:16 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20201001083616euoutp02c9c496347da66331fcf5ee2cb947fc7f~50WV7dqVQ1018010180euoutp02J DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1601541376; bh=Du4vwZJ/JAps9yonoLiRI3YVp38qBjcXvexM7y7EYH8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NgtWmCrfoyNKfNMC3y9DnpD/lyCkIkKqFjqrc8dvQrmBFI92h/NHcChANUx8N1VUP +/G29NdFveRA4MqKnsu49/MuJ7CigEUjJc9CFPcSmGAE66XN9t5Akbo7sRfxwwFKIZ R+x/gIiQhM4vlOXH+h566fX1D934neca53TBTOHo= Received: from eusmges3new.samsung.com (unknown [203.254.199.245]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20201001083615eucas1p27fb62b0bbef1a6c3cbba058520c1a157~50WVZZNFN1491414914eucas1p2K; Thu, 1 Oct 2020 08:36:15 +0000 (GMT) Received: from eucas1p1.samsung.com ( [182.198.249.206]) by eusmges3new.samsung.com (EUCPMTA) with SMTP id 8D.97.06318.FF4957F5; Thu, 1 Oct 2020 09:36:15 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20201001083615eucas1p2886f47d032844823b419a92fa02994ad~50WU508-K1494214942eucas1p29; Thu, 1 Oct 2020 08:36:15 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20201001083615eusmtrp14450d5e1b05ee5c5c965b65955dc40d4~50WU5L3Pi1380613806eusmtrp1T; Thu, 1 Oct 2020 08:36:15 +0000 (GMT) X-AuditID: cbfec7f5-371ff700000018ae-f0-5f7594ffc8ae Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 48.24.06017.FF4957F5; Thu, 1 Oct 2020 09:36:15 +0100 (BST) Received: from localhost (unknown [106.120.51.46]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20201001083615eusmtip226c5a87fc5df7b60a47af4b2afd5f63e~50WUvyoy62832128321eusmtip2g; Thu, 1 Oct 2020 08:36:14 +0000 (GMT) From: Lukasz Stelmach To: Krzysztof Kozlowski Cc: Rob Herring , Kukjin Kim , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com Subject: Re: [PATCH] ARM: dts: exynos: Add a placeholder for a MAC address Date: Thu, 01 Oct 2020 10:36:14 +0200 In-Reply-To: <20201001072236.GA4815@kozik-lap> (Krzysztof Kozlowski's message of "Thu, 1 Oct 2020 09:22:36 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg="pgp-sha256"; protocol="application/pgp-signature" X-Brightmail-Tracker: H4sIAAAAAAAAA01Sa0hTYRjm2zk750yanDbLtyUS04gs7WLkiTI0I1b+KPoVQtmqk1Zu1s6m qVCGXYf3WypSaRdjtbXWErFcMVZSw2kFXa1WaitnBV0wyy4ePwP/Pe/zPc/z8rx8DKHwSFXM Lr2RN+i1WWoqhGy9O+KL/VttSl94rDaGu1p3Rcqd9vikXFlfkOC6u+005+h7LOUetTdSXF23 S8JZPS9p7kiHh06SaRyWE5Tm2rmDmlKnBWm+OiI3kGkhK3bwWbtyeMOClVtDMi0jN6i9A8r9 5iEnXYh8rBnJGGCXQPvzaokZhTAK9iIC/6tHUjx8Q9Do76BElYL9iqC0BpkRM+44ZU3GmhYE /X8OEXgIICjz9ZKiiGLjwGrdJHrD2Lnw5PfweCjBHpXA1ZZf46FKdh087HWNh5LsbOhpiBRp GWsEq9dHiFjOJsCXkacSEU9jl4Hz/Wsa81PhXn0/KWKC1UF99xAS84H10XC+6bIUV1sNfbZR CmMlDHY6aYwjwFtVTOIyB6Gqcin2FiNobfxBYs1y6PX9nPAmw5FnvonyofD041S8NxQqW08S mJbD8aMKrI4GW9nNiRQVlAxeRBhr4M39NhKf8xCCisD8cjSrYVKbhkltGsZSibHLXWlfgOl5 cKEpSGCcCDbbZ/IMklpQOG8SdBm8EK/nc+MErU4w6TPitmfrHGjsP3n/dH5vQ67RbW7EMkg9 RV6uN6YrpNocIU/nRtFjSW/tl3qQitRn63l1mHxVl3eLQr5Dm5fPG7LTDaYsXnCjmQypDpfH N3/YrGAztEZ+D8/v5Q3/XyWMTFWIKGXqvs7ptz5pbkcXRaw32b1F1WFRJS9s11+mdb1LmT9D EnSWJkWFMfKZD3YG5qQnDLQ3RfxdrJT5pxn1/RUpqmBifEtbf+bhpLa1PXfMKe6zqamhgcMx w1EFBxI33/OvcaGN1O6hxfYuKrygOVhT6x+Ijc/J55rqaTrXElc0qiaFTO2iGMIgaP8Baih+ vFcDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrDIsWRmVeSWpSXmKPExsVy+t/xe7r/p5TGG/xew2mxccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzWLG+X1MFmuP3GW3aN17hN2B02PTqk42j81L6j36tqxi 9Pi8SS6AJUrPpii/tCRVISO/uMRWKdrQwkjP0NJCz8jEUs/Q2DzWyshUSd/OJiU1J7MstUjf LkEvY9XP3WwFT4Urut5sYW9gPCfQxcjBISFgIjFvrWMXIxeHkMBSRomfd2YzQcSlJFbOTe9i 5AQyhSX+XOtig6h5yihx8lAXK0gNm4CexNq1ESA1IgKaEtf/fmcFqWEWaGSS2H7wLjtIQljA S+LSnX2MILaQgK7EqvZ/YPNZBFQlLsySAzE5BUok/t1lBqngFTCX+PTzBhOILSpgKbHlxX12 iLigxMmZT1hAbGaBbImvq58zT2AUmIUkNQtJahbQVGagi9bv0ocIa0ssW/iaGcK2lVi37j3L AkbWVYwiqaXFuem5xUZ6xYm5xaV56XrJ+bmbGIGxte3Yzy07GLveBR9iFOBgVOLhnZBXEi/E mlhWXJl7iFEFaMyjDasvMEqx5OXnpSqJ8DqdPR0nxJuSWFmVWpQfX1Sak1p8iNEU6MuJzFKi yfnAdADUb2hqaG5haWhubG5sZqEkztshcDBGSCA9sSQ1OzW1ILUIpo+Jg1OqgfHI7dXrMrNk q+d+mKaWyG58My8gSevW0bdK4ifv9ricjcxoaPz59fGk7UFpecES/Rvvh7f9+XzgcoPahFU2 i78LrSiNjNfnzjK3nFXeIRziOs8nZ+a3ZoVFjzIeppgvkfHWCjH1WLzApqbw4j8VY7auvSz7 l94KEFFzmFK+pTTllWFRz55kZSWW4oxEQy3mouJEAI9iE1PPAgAA X-CMS-MailID: 20201001083615eucas1p2886f47d032844823b419a92fa02994ad X-Msg-Generator: CA X-RootMTR: 20201001083615eucas1p2886f47d032844823b419a92fa02994ad X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20201001083615eucas1p2886f47d032844823b419a92fa02994ad References: <20201001072236.GA4815@kozik-lap> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable It was <2020-10-01 czw 09:22>, when Krzysztof Kozlowski wrote: > On Wed, Sep 30, 2020 at 04:31:51PM +0200, =C5=81ukasz Stelmach wrote: >> Add a placeholder for a MAC address. A bootloader may fill it >> to set the MAC address and override EEPROM settings. >>=20 >> Signed-off-by: =C5=81ukasz Stelmach >> --- >> arch/arm/boot/dts/exynos5422-odroidxu3.dts | 18 ++++++++++++++++++ >> 1 file changed, 18 insertions(+) >>=20 >> diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/= dts/exynos5422-odroidxu3.dts >> index db0bc17a667b..9f7f3eacb750 100644 >> --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts >> +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts >> @@ -70,3 +70,21 @@ &pwm { >> &usbdrd_dwc3_1 { >> dr_mode =3D "peripheral"; >> }; >> + >> +&usbhost2 { >> + #address-cells =3D <1>; >> + #size-cells =3D <0>; >> + >> + hub@1 { >> + compatible =3D "usb8087,0024"; >> + reg =3D <1>; >> + #address-cells =3D <1>; >> + #size-cells =3D <0>; >> + >> + ethernet: usbether@1 { >> + compatible =3D "usb0c45,6310"; >> + reg =3D <1>; >> + mac-address =3D [00 00 00 00 00 00]; /* Filled in by a bootloader */ > > Why do you need a placeholder? U-Boot can just append the > address/property. Several other dts files have such placeholder git grep 'mac-addr.*\[00 00 00 00 00 00\]' arch/arm/boot/dts/ | wc -l 26 I can see two scenarios where this patch may be helpful. Another (simple) boot loading code might be used. The value may also be customized during build time and used without any support of a bootloader. Finding and filling a placeholder would be easier in u-boot too. And it serves as a reference how to configure a USB device in a dts file. =2D-=20 =C5=81ukasz Stelmach Samsung R&D Institute Poland Samsung Electronics --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEXpuyqjq9kGEVr9UQsK4enJilgBAFAl91lP4ACgkQsK4enJil gBC7CQf8Daar9/v03mcyngKOdjq/OdNBbF8xnkL8pJ4B4VmhjtmdszYH+P9+p4KI GZAMGardhItVjNrHJlkxHXly7z3eqy/lwSgU2BnXOshpSEGmG0cIYPKs3hjBBzzD gIxOlVvgBoKJnQe/RSOSX+Exra8VaS+5Xtcv+fQq3XHWAEUm14VY8IbqICuGUeNS FyIhvfHjxUKCwvO0NMWJaSIp6XjECchhHi8gwhJ8bvEV9xzm3EgOAuhfaHGw3BxW 9hdVqVuLr6Yl+hm2+rf35q/qmMVpGGaBxfH2xFgpIq4kjtEKIHT0rnokUaNbRnZ1 BTFUWia9Fk44U0B/rKB73c3ItaU50Q== =hQtz -----END PGP SIGNATURE----- --=-=-=-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7E46C4727C for ; Thu, 1 Oct 2020 08:38:04 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5D93B20780 for ; Thu, 1 Oct 2020 08:38:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Zyo+CR/L"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="NgtWmCrf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5D93B20780 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=samsung.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: References:MIME-Version:Message-ID:In-Reply-To:Date:Subject:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ku9hEyeH5opznDhYuKcjqDbmTudSLwkqYaV+EVoy0R4=; b=Zyo+CR/LBcO/8TwLkdH1pGyxK GsH4d2LBFJzMGPzbwm88VP37FLp4fM6dOQoBuoTtY8xLsEnYn+t4QU1kyKPOUDlZicUPigM5l331N 5EnhYY+XQVWyIVb7HMaR2YYScVTQcOUZty0cODFeY4Vv2ZNqugrgK0rD+bTbc4V1V8toFDgk9+ZcO 3QWDIe5WMhI4Hrkag6yywD9URKEv+WpC1zW+ksuScs2Z6g5kP9c9EtmcSeXZ0f8mxqDOXXKB6ggV+ cYnst3hrSIk1HFvo/cg9NHrcbkU3/XWtJFCZCCzck6C7aCxe0j4rG7BNkP7EeOAokGfsZ98vHNsKX KCRgps2AQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNu4b-0003k0-Ol; Thu, 01 Oct 2020 08:36:21 +0000 Received: from mailout2.w1.samsung.com ([210.118.77.12]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNu4Z-0003j5-3N for linux-arm-kernel@lists.infradead.org; Thu, 01 Oct 2020 08:36:20 +0000 Received: from eucas1p1.samsung.com (unknown [182.198.249.206]) by mailout2.w1.samsung.com (KnoxPortal) with ESMTP id 20201001083616euoutp02c9c496347da66331fcf5ee2cb947fc7f~50WV7dqVQ1018010180euoutp02J; Thu, 1 Oct 2020 08:36:16 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20201001083616euoutp02c9c496347da66331fcf5ee2cb947fc7f~50WV7dqVQ1018010180euoutp02J DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1601541376; bh=Du4vwZJ/JAps9yonoLiRI3YVp38qBjcXvexM7y7EYH8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NgtWmCrfoyNKfNMC3y9DnpD/lyCkIkKqFjqrc8dvQrmBFI92h/NHcChANUx8N1VUP +/G29NdFveRA4MqKnsu49/MuJ7CigEUjJc9CFPcSmGAE66XN9t5Akbo7sRfxwwFKIZ R+x/gIiQhM4vlOXH+h566fX1D934neca53TBTOHo= Received: from eusmges3new.samsung.com (unknown [203.254.199.245]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20201001083615eucas1p27fb62b0bbef1a6c3cbba058520c1a157~50WVZZNFN1491414914eucas1p2K; Thu, 1 Oct 2020 08:36:15 +0000 (GMT) Received: from eucas1p1.samsung.com ( [182.198.249.206]) by eusmges3new.samsung.com (EUCPMTA) with SMTP id 8D.97.06318.FF4957F5; Thu, 1 Oct 2020 09:36:15 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20201001083615eucas1p2886f47d032844823b419a92fa02994ad~50WU508-K1494214942eucas1p29; Thu, 1 Oct 2020 08:36:15 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20201001083615eusmtrp14450d5e1b05ee5c5c965b65955dc40d4~50WU5L3Pi1380613806eusmtrp1T; Thu, 1 Oct 2020 08:36:15 +0000 (GMT) X-AuditID: cbfec7f5-371ff700000018ae-f0-5f7594ffc8ae Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 48.24.06017.FF4957F5; Thu, 1 Oct 2020 09:36:15 +0100 (BST) Received: from localhost (unknown [106.120.51.46]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20201001083615eusmtip226c5a87fc5df7b60a47af4b2afd5f63e~50WUvyoy62832128321eusmtip2g; Thu, 1 Oct 2020 08:36:14 +0000 (GMT) From: Lukasz Stelmach To: Krzysztof Kozlowski Subject: Re: [PATCH] ARM: dts: exynos: Add a placeholder for a MAC address Date: Thu, 01 Oct 2020 10:36:14 +0200 In-Reply-To: <20201001072236.GA4815@kozik-lap> (Krzysztof Kozlowski's message of "Thu, 1 Oct 2020 09:22:36 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01Sa0hTYRjm2zk750yanDbLtyUS04gs7WLkiTI0I1b+KPoVQtmqk1Zu1s6m qVCGXYf3WypSaRdjtbXWErFcMVZSw2kFXa1WaitnBV0wyy4ePwP/Pe/zPc/z8rx8DKHwSFXM Lr2RN+i1WWoqhGy9O+KL/VttSl94rDaGu1p3Rcqd9vikXFlfkOC6u+005+h7LOUetTdSXF23 S8JZPS9p7kiHh06SaRyWE5Tm2rmDmlKnBWm+OiI3kGkhK3bwWbtyeMOClVtDMi0jN6i9A8r9 5iEnXYh8rBnJGGCXQPvzaokZhTAK9iIC/6tHUjx8Q9Do76BElYL9iqC0BpkRM+44ZU3GmhYE /X8OEXgIICjz9ZKiiGLjwGrdJHrD2Lnw5PfweCjBHpXA1ZZf46FKdh087HWNh5LsbOhpiBRp GWsEq9dHiFjOJsCXkacSEU9jl4Hz/Wsa81PhXn0/KWKC1UF99xAS84H10XC+6bIUV1sNfbZR CmMlDHY6aYwjwFtVTOIyB6Gqcin2FiNobfxBYs1y6PX9nPAmw5FnvonyofD041S8NxQqW08S mJbD8aMKrI4GW9nNiRQVlAxeRBhr4M39NhKf8xCCisD8cjSrYVKbhkltGsZSibHLXWlfgOl5 cKEpSGCcCDbbZ/IMklpQOG8SdBm8EK/nc+MErU4w6TPitmfrHGjsP3n/dH5vQ67RbW7EMkg9 RV6uN6YrpNocIU/nRtFjSW/tl3qQitRn63l1mHxVl3eLQr5Dm5fPG7LTDaYsXnCjmQypDpfH N3/YrGAztEZ+D8/v5Q3/XyWMTFWIKGXqvs7ptz5pbkcXRaw32b1F1WFRJS9s11+mdb1LmT9D EnSWJkWFMfKZD3YG5qQnDLQ3RfxdrJT5pxn1/RUpqmBifEtbf+bhpLa1PXfMKe6zqamhgcMx w1EFBxI33/OvcaGN1O6hxfYuKrygOVhT6x+Ijc/J55rqaTrXElc0qiaFTO2iGMIgaP8Baih+ vFcDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrDIsWRmVeSWpSXmKPExsVy+t/xe7r/p5TGG/xew2mxccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzWLG+X1MFmuP3GW3aN17hN2B02PTqk42j81L6j36tqxi 9Pi8SS6AJUrPpii/tCRVISO/uMRWKdrQwkjP0NJCz8jEUs/Q2DzWyshUSd/OJiU1J7MstUjf LkEvY9XP3WwFT4Urut5sYW9gPCfQxcjBISFgIjFvrWMXIxeHkMBSRomfd2YzQcSlJFbOTe9i 5AQyhSX+XOtig6h5yihx8lAXK0gNm4CexNq1ESA1IgKaEtf/fmcFqWEWaGSS2H7wLjtIQljA S+LSnX2MILaQgK7EqvZ/YPNZBFQlLsySAzE5BUok/t1lBqngFTCX+PTzBhOILSpgKbHlxX12 iLigxMmZT1hAbGaBbImvq58zT2AUmIUkNQtJahbQVGagi9bv0ocIa0ssW/iaGcK2lVi37j3L AkbWVYwiqaXFuem5xUZ6xYm5xaV56XrJ+bmbGIGxte3Yzy07GLveBR9iFOBgVOLhnZBXEi/E mlhWXJl7iFEFaMyjDasvMEqx5OXnpSqJ8DqdPR0nxJuSWFmVWpQfX1Sak1p8iNEU6MuJzFKi yfnAdADUb2hqaG5haWhubG5sZqEkztshcDBGSCA9sSQ1OzW1ILUIpo+Jg1OqgfHI7dXrMrNk q+d+mKaWyG58My8gSevW0bdK4ifv9ricjcxoaPz59fGk7UFpecES/Rvvh7f9+XzgcoPahFU2 i78LrSiNjNfnzjK3nFXeIRziOs8nZ+a3ZoVFjzIeppgvkfHWCjH1WLzApqbw4j8VY7auvSz7 l94KEFFzmFK+pTTllWFRz55kZSWW4oxEQy3mouJEAI9iE1PPAgAA X-CMS-MailID: 20201001083615eucas1p2886f47d032844823b419a92fa02994ad X-Msg-Generator: CA X-RootMTR: 20201001083615eucas1p2886f47d032844823b419a92fa02994ad X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20201001083615eucas1p2886f47d032844823b419a92fa02994ad References: <20201001072236.GA4815@kozik-lap> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201001_043619_261299_FE6C8CE0 X-CRM114-Status: GOOD ( 20.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, b.zolnierkie@samsung.com, linux-kernel@vger.kernel.org, Rob Herring , Kukjin Kim , linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com Content-Type: multipart/mixed; boundary="===============6741128054621595424==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============6741128054621595424== Content-Type: multipart/signed; boundary="=-=-="; micalg="pgp-sha256"; protocol="application/pgp-signature" --=-=-= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable It was <2020-10-01 czw 09:22>, when Krzysztof Kozlowski wrote: > On Wed, Sep 30, 2020 at 04:31:51PM +0200, =C5=81ukasz Stelmach wrote: >> Add a placeholder for a MAC address. A bootloader may fill it >> to set the MAC address and override EEPROM settings. >>=20 >> Signed-off-by: =C5=81ukasz Stelmach >> --- >> arch/arm/boot/dts/exynos5422-odroidxu3.dts | 18 ++++++++++++++++++ >> 1 file changed, 18 insertions(+) >>=20 >> diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/= dts/exynos5422-odroidxu3.dts >> index db0bc17a667b..9f7f3eacb750 100644 >> --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts >> +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts >> @@ -70,3 +70,21 @@ &pwm { >> &usbdrd_dwc3_1 { >> dr_mode =3D "peripheral"; >> }; >> + >> +&usbhost2 { >> + #address-cells =3D <1>; >> + #size-cells =3D <0>; >> + >> + hub@1 { >> + compatible =3D "usb8087,0024"; >> + reg =3D <1>; >> + #address-cells =3D <1>; >> + #size-cells =3D <0>; >> + >> + ethernet: usbether@1 { >> + compatible =3D "usb0c45,6310"; >> + reg =3D <1>; >> + mac-address =3D [00 00 00 00 00 00]; /* Filled in by a bootloader */ > > Why do you need a placeholder? U-Boot can just append the > address/property. Several other dts files have such placeholder git grep 'mac-addr.*\[00 00 00 00 00 00\]' arch/arm/boot/dts/ | wc -l 26 I can see two scenarios where this patch may be helpful. Another (simple) boot loading code might be used. The value may also be customized during build time and used without any support of a bootloader. Finding and filling a placeholder would be easier in u-boot too. And it serves as a reference how to configure a USB device in a dts file. =2D-=20 =C5=81ukasz Stelmach Samsung R&D Institute Poland Samsung Electronics --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEXpuyqjq9kGEVr9UQsK4enJilgBAFAl91lP4ACgkQsK4enJil gBC7CQf8Daar9/v03mcyngKOdjq/OdNBbF8xnkL8pJ4B4VmhjtmdszYH+P9+p4KI GZAMGardhItVjNrHJlkxHXly7z3eqy/lwSgU2BnXOshpSEGmG0cIYPKs3hjBBzzD gIxOlVvgBoKJnQe/RSOSX+Exra8VaS+5Xtcv+fQq3XHWAEUm14VY8IbqICuGUeNS FyIhvfHjxUKCwvO0NMWJaSIp6XjECchhHi8gwhJ8bvEV9xzm3EgOAuhfaHGw3BxW 9hdVqVuLr6Yl+hm2+rf35q/qmMVpGGaBxfH2xFgpIq4kjtEKIHT0rnokUaNbRnZ1 BTFUWia9Fk44U0B/rKB73c3ItaU50Q== =hQtz -----END PGP SIGNATURE----- --=-=-=-- --===============6741128054621595424== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============6741128054621595424==--