From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 22 Apr 2025 14:47:09 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1u7D1p-0043WK-1X for lore@lore.pengutronix.de; Tue, 22 Apr 2025 14:47:09 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1u7D1o-0003sU-O6 for lore@pengutronix.de; Tue, 22 Apr 2025 14:47:09 +0200 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-Transfer-Encoding: Content-Type:In-Reply-To:References:To:From:Subject:MIME-Version:Date: Message-ID:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=LQuWVRp6eD8GVL6J2Eu+XgZ6ZVIFf9ttmB0wwOP8Tyc=; b=S8HCtPqgy+mmKmfwE3+ycD8UEk Iay9mm309WLtRRy+mtvHhKsGk9C9kCSNQ6F3IZAEw2K8Wq0xvPOProSdeQoBqNoZmBZb23Rtd2llU hmctSQmXAgDtMfYqqWNkuC8SSZIQT7AG7EVZBFECTKMHzDz/ALxesqHbivRGl1YzGdru92PucFwpz fmBGmEVcV1V2nEiVHSrHeGfOc7IPUEfUXIGAhSbynuPLnpIpiMMnv0G/xXo9PjjR4R2QC5rM9vEAX o0zmABPkHaTDK3CdTf8whn9Vawj59v2wofoipzLhu8w5D0IwsIHTnGbzHm4g5UyK5d95cQZ5rPKM8 huraRjoA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u7D1Q-00000007B24-2MUO; Tue, 22 Apr 2025 12:46:44 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u7Bze-00000006zGy-0oK0 for barebox@lists.infradead.org; Tue, 22 Apr 2025 11:40:51 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=[127.0.0.1]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1u7Bzc-0007N3-TM for barebox@lists.infradead.org; Tue, 22 Apr 2025 13:40:48 +0200 Message-ID: Date: Tue, 22 Apr 2025 13:40:48 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Ahmad Fatoum To: barebox@lists.infradead.org References: <20250411074045.2019372-1-a.fatoum@pengutronix.de> Content-Language: en-US, de-DE, de-BE In-Reply-To: <20250411074045.2019372-1-a.fatoum@pengutronix.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250422_044050_236739_4DDB6A15 X-CRM114-Status: GOOD ( 23.15 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.4 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH 00/10] Add barebox TLV infrastructure X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Hello Sascha, Could the first three patches that are applicable on their own be applied? Thanks, On 4/11/25 09:40, Ahmad Fatoum wrote: > barebox TLV is a system to store and retrieve a device's (read-only) > meta-data from non-volatile memory. > It is intended to handle information that are usually only set in > the factory - like serial number, MAC-addresses, analog calibration > data, etc. > Data is stored in a tag-length-value format (hence the name) and read > from non-volatile memory during startup. > > Unpacked values are fixed up into the devicetree ``chosen``-node > for consumption by the operating system. > > This system has already been deployed in the field for a couple of years > now on the LXA TAC. The feature is given a generic name though, because > it's hoped it will be useful to a more general audience. > > Nowadays, this could be implemented as a NVMEM layout in Linux. > The benefit of doing it in barebox is that, when signing is added > in the future, we preclude an attacker from showing barebox > and Linux different content. > > Nevertheless, NVMEM layout infrastructure in barebox could be > useful, but our NVMEM support needs an overhaul to support layouts, > so fixed-partitions is the only supported binding for now. > > Ahmad Fatoum (8): > net: factor out eth_of_get_fixup_node > net: export list of registered ethernet addresses > common: add optional systemd.hostname generation > common: add barebox TLV support > commands: add TLV debugging command > scripts: add bareboxtlv host/target tool > boards: add decoder for LXA TLV v1 format > ARM: stm32mp: lxa: enable TLV support for TAC & FairyTux2 > > Chris Fiege (2): > scripts: Add Barebox TLV Generator Tooling > doc: Add User-Documentation for Barebox TLV > > .../bindings/nvmem/barebox,tlv.yaml | 60 ++++ > Documentation/user/barebox-tlv.rst | 93 +++++ > Documentation/user/user-manual.rst | 1 + > arch/arm/boards/lxa-fairytux2/board.c | 8 + > arch/arm/boards/lxa-tac/board.c | 8 + > .../dts/stm32mp153c-lxa-fairytux2-gen2.dts | 1 + > arch/arm/dts/stm32mp153c-lxa-fairytux2.dtsi | 1 + > arch/arm/dts/stm32mp15xc-lxa-tac.dtsi | 2 + > arch/arm/mach-stm32mp/Kconfig | 2 + > commands/Kconfig | 12 + > commands/Makefile | 1 + > commands/tlv.c | 55 +++ > common/Kconfig | 34 ++ > common/Makefile | 1 + > common/boards/Kconfig | 5 + > common/boards/Makefile | 1 + > common/boards/lxa/Makefile | 2 + > common/boards/lxa/factory-data.c | 132 +++++++ > common/bootm.c | 9 +- > common/tlv/Makefile | 4 + > common/tlv/barebox.c | 183 ++++++++++ > common/tlv/bus.c | 133 ++++++++ > common/tlv/drv.c | 49 +++ > common/tlv/parser.c | 211 ++++++++++++ > common/tlv/register.c | 94 +++++ > include/net.h | 21 ++ > include/string.h | 7 + > include/tlv/format.h | 72 ++++ > include/tlv/tlv.h | 99 ++++++ > lib/string.c | 21 ++ > net/eth.c | 40 +-- > scripts/.gitignore | 2 + > scripts/Makefile | 2 + > .../bareboxtlv-generator.py | 321 ++++++++++++++++++ > .../bareboxtlv-generator/data-example.yaml | 12 + > scripts/bareboxtlv-generator/requirements.txt | 2 + > .../bareboxtlv-generator/schema-example.yaml | 48 +++ > scripts/bareboxtlv-target.c | 1 + > scripts/bareboxtlv.c | 183 ++++++++++ > scripts/include/asm/unaligned.h | 21 ++ > scripts/include/linux/build_bug.h | 8 + > scripts/include/linux/stringify.h | 14 + > test/self/Kconfig | 7 + > test/self/Makefile | 1 + > test/self/tlv.c | 89 +++++ > test/self/tlv.dts | 27 ++ > 46 files changed, 2080 insertions(+), 20 deletions(-) > create mode 100644 Documentation/devicetree/bindings/nvmem/barebox,tlv.yaml > create mode 100644 Documentation/user/barebox-tlv.rst > create mode 100644 commands/tlv.c > create mode 100644 common/boards/lxa/Makefile > create mode 100644 common/boards/lxa/factory-data.c > create mode 100644 common/tlv/Makefile > create mode 100644 common/tlv/barebox.c > create mode 100644 common/tlv/bus.c > create mode 100644 common/tlv/drv.c > create mode 100644 common/tlv/parser.c > create mode 100644 common/tlv/register.c > create mode 100644 include/tlv/format.h > create mode 100644 include/tlv/tlv.h > create mode 100755 scripts/bareboxtlv-generator/bareboxtlv-generator.py > create mode 100644 scripts/bareboxtlv-generator/data-example.yaml > create mode 100644 scripts/bareboxtlv-generator/requirements.txt > create mode 100644 scripts/bareboxtlv-generator/schema-example.yaml > create mode 100644 scripts/bareboxtlv-target.c > create mode 100644 scripts/bareboxtlv.c > create mode 100644 scripts/include/asm/unaligned.h > create mode 100644 scripts/include/linux/build_bug.h > create mode 100644 scripts/include/linux/stringify.h > create mode 100644 test/self/tlv.c > create mode 100644 test/self/tlv.dts > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |