From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 28 May 2025 16:36:02 +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 1uKHsw-001DdZ-10 for lore@lore.pengutronix.de; Wed, 28 May 2025 16:36:02 +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 1uKHsu-0001xA-BC for lore@pengutronix.de; Wed, 28 May 2025 16:36:02 +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:MIME-Version:Message-Id:Date:Subject:To:From:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=upQDGiwFaH8lkAgSggSEW04tQbIUtzMdKF0qnNoXPV4=; b=V9drbUgMLmSnJ9Bzmi6bCc+nOu Xp+9jCjGHL7giPn1HKzCFbtNE3B/1Ky+GqVELYl2jZX57D5bkvCCcpSt6Xt0mOvsx4E7A9dNQA0xx NuXqMX6iteRKDBFDQiFn2PXO5dlwcPmNFL4+ALvj7PTkeoYMz9QmAktg5ZH8848EwkcCoKuGQlJXa PKsOzsGW3V4YAmxAPHWV8wzy0WJd7uxq+WetzPgyaGzHgrgyc5FnI+rf7y1sO0Tc4/2xa2zmgG934 HopgzL1cLl3Jy++jhIT3nZuOeiS7ote2Chg3FJr6kilKqcIj1VAsm6VRgOzGekx2KZ9BBWnmBmQnu ryqSIApQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uKHsK-0000000DQBo-28B7; Wed, 28 May 2025 14:35:24 +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 1uKHnr-0000000DPDT-3uje for barebox@lists.infradead.org; Wed, 28 May 2025 14:30:49 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uKHnp-0006Ew-9N for barebox@lists.infradead.org; Wed, 28 May 2025 16:30:45 +0200 Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uKHnp-000bXc-0L for barebox@lists.infradead.org; Wed, 28 May 2025 16:30:45 +0200 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1uKHnp-001qOC-03 for barebox@lists.infradead.org; Wed, 28 May 2025 16:30:45 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Date: Wed, 28 May 2025 16:30:33 +0200 Message-Id: <20250528143043.434446-1-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.39.5 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250528_073047_977073_36135092 X-CRM114-Status: GOOD ( 15.94 ) 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=-6.7 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: [PATCH v2 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) 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. v1 -> v2: - rebase on struct bus_type changes - document barebox generic TLV format tags (Sascha) - change default schema to use barebox generic format (Sascha) - change default value for modification key (Sascha) 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 | 192 +++++++++++ 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 | 97 ++++++ lib/string.c | 21 ++ net/eth.c | 40 +-- scripts/.gitignore | 2 + scripts/Makefile | 2 + .../bareboxtlv-generator.py | 321 ++++++++++++++++++ .../bareboxtlv-generator/data-example.yaml | 5 + scripts/bareboxtlv-generator/requirements.txt | 2 + .../bareboxtlv-generator/schema-example.yaml | 34 ++ 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, 2066 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 -- 2.39.5