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Tue, 23 Jun 2026 13:48:36 -0700 (PDT) Received: from localhost.localdomain ([2a02:1210:8642:2b00:82ee:73ff:feb8:99e3]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-46c1e840f80sm351996f8f.6.2026.06.23.13.48.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Jun 2026 13:48:34 -0700 (PDT) From: Alexander Sverdlin To: linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Cc: Alexander Sverdlin , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Hans de Goede , Dmitry Torokhov , Andre Przywara , Jun Yan , Lukas Schmid , =?UTF-8?q?J=2E=20Neusch=C3=A4fer?= , Eric Biggers , Michal Simek , Luca Weiss , Sven Peter , Maxime Ripard , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: [PATCH v5 0/6] Add support for Baijie Helper A133 board Date: Tue, 23 Jun 2026 22:48:12 +0200 Message-ID: <20260623204824.691832-1-alexander.sverdlin@gmail.com> X-Mailer: git-send-email 2.54.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260623_134838_383352_40CE8EA0 X-CRM114-Status: GOOD ( 15.43 ) 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 Baijie Helper A133 board is a development board around Baijie A133 Core SBC. Features: - 1/2/4GiB LPDDR4 DRAM - 8/16/32GiB eMMC - AXP707 PMIC - USB-C OTG port in peripheral mode (via onboard hub) - 2 USB 2.0 ports - MicroSD slot and on-board eMMC module - Gigabit Ethernet - Bluetooth - WiFi Add initial support for both the Helper and Core boards, including UART, PMU, eMMC, USB, Ethernet, LRADC-connected buttons. UART1 can only be used for Bluetooth module, but BT-WiFi combo Allwinner AW869A chip has not mainline driver currently. Link: https://szbaijie.com/index/product/product_detail.html?product_id=23&language=en Changelog: v5: - sun50i-a100.dtsi: reflowed "compatible" property of lradc node - dropped "reserve RAM for ATF" patch [v4 6/7] v4: - reserve RAM for ATF - sun4i-lradc-keys: Add A100/A133 compatible - dt-bindings: renamed "Baijie Helper A133" -> "Baijie A133 HelperBoard" - dt-bindings: renamed "baijie,helper-a133" -> "baijie,helperboard-a133" - dt-bindings: introduced allwinner,sun50i-a100-lradc - reserve RAM for ATF - renamed "sun50i-a133-baijie-helper.dtb" -> "sun50i-a133-helperboard.dtb" - added "model" property into root of sun50i-a133-helperboard-core.dtsi - added "cap-mmc-highspeed" and "max-frequency" into &mmc2 - added "x-powers,drive-vbus-en" and "*-supply" into &axp803 - dropped all "regulator-enable-ramp-delay" properties - replaced ®_dcdc3 with a "polyphased" comment - exact DRAM voltage in ®_dcdc5 - disabled ®_dcdc6 to avoid "[ 31.710641] dcdc6: disabling" - added ®_vdd5v "root" regulator - added "disable-wp" into &mmc0 - commented &usb_otg - assigned usb1_vbus-supply in &usbphy - https://lore.kernel.org/all/20260605070923.3045073-1-alexander.sverdlin@gmail.com/ v3: - added lradc node to sun50i-a100.dtsi - enabled LRADC driver in arm64 defconfig - added my copyrights into the newly introduced DTs - all DT nodes sorted alphabetically - all always-on regulators commented/propetly named - all regulators got proper voltages (not default ranges) - ADC-sensed buttons K1..K5 added - re-labelled "eth_phy" -> "rgmii_phy" - usbphy 0 switched from host into peripheral mode (downstream from an onboard hub) - typo sun50i-a133-baije-core.dtsi -> sun50i-a133-baijie-core.dtsi - https://lore.kernel.org/all/20260517234134.2737320-1-alexander.sverdlin@gmail.com/ v2: - introduced baijie,helper-a133-core compatible for the Core (SoM) board - https://lore.kernel.org/all/20260510201644.4143710-1-alexander.sverdlin@gmail.com/ v1: - https://lore.kernel.org/all/20260503191842.2736130-1-alexander.sverdlin@gmail.com/ Alexander Sverdlin (6): arm64: defconfig: Enable Allwinner LRADC input driver dt-bindings: vendor-prefixes: Add Shenzhen Baijie Technology Co., Ltd. dt-bindings: arm: sunxi: Add Baijie HelperBoard A133 compatible dt-bindings: input: sun4i-lradc-keys: Add A100/A133 compatible arm64: dts: allwinner: a100: Add LRADC node arm64: dts: allwinner: A133: add support for Baijie Helper A133 board .../devicetree/bindings/arm/sunxi.yaml | 6 + .../input/allwinner,sun4i-a10-lradc-keys.yaml | 1 + .../devicetree/bindings/vendor-prefixes.yaml | 2 + arch/arm64/boot/dts/allwinner/Makefile | 1 + .../arm64/boot/dts/allwinner/sun50i-a100.dtsi | 10 + .../sun50i-a133-helperboard-core.dtsi | 197 ++++++++++++++++++ .../dts/allwinner/sun50i-a133-helperboard.dts | 148 +++++++++++++ arch/arm64/configs/defconfig | 1 + 8 files changed, 366 insertions(+) create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a133-helperboard-core.dtsi create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a133-helperboard.dts -- 2.54.0