Add Banana Pi BPI-M1 support and LED locate RPC

.github/workflows/build-boot.yml

@@ -17,6 +17,7 @@ jobs:
       matrix:
         defconfig:
           - aarch64_qemu_boot
+          - bpi_m1_boot
           - bpi_r3_sd_boot
           - bpi_r3_emmc_boot
           - bpi_r4_sd_boot

.github/workflows/build-image.yml

@@ -10,6 +10,7 @@ on:
         options:
           - raspberrypi-rpi2
           - raspberrypi-rpi64
+          - bananapi-bpi-m1
           - bananapi-bpi-r3
           - bananapi-bpi-r4
           - bananapi-bpi-r64
@@ -69,6 +70,11 @@ jobs:
               targets="sdcard"
               bootloader_sdcard=rpi64-boot
               ;;
+            bananapi-bpi-m1)
+              arch=arm
+              targets="sdcard"
+              bootloader_sdcard=bpi-m1-boot
+              ;;
             bananapi-bpi-r3)
               arch=aarch64
               targets="sdcard emmc"

board/arm/Config.in

@@ -1,5 +1,6 @@
 if BR2_arm
 
+source "$BR2_EXTERNAL_INFIX_PATH/board/arm/bananapi-bpi-m1/Config.in"
 source "$BR2_EXTERNAL_INFIX_PATH/board/arm/microchip-sama7g54-ek/Config.in"
 source "$BR2_EXTERNAL_INFIX_PATH/board/arm/raspberrypi-rpi2/Config.in"
 

board/arm/README.md

@@ -4,5 +4,6 @@ Arm 32-bit
 Board Specific Documentation
 ----------------------------
 
+- [Banana Pi BPI-M1 (32-bit)](bananapi-bpi-m1/)
 - [Microchip SAMA7G54-EK (32-bit)](microchip-sama7g54-ek/)
 - [Raspberry Pi 2 Model B (32-bit)](raspberrypi-rpi2/)

board/arm/bananapi-bpi-m1/Config.in

@@ -0,0 +1,9 @@
+config BR2_PACKAGE_BANANAPI_BPI_M1
+	bool "Banana Pi BPI-M1"
+	depends on BR2_arm
+	select SDCARD_AUX
+	select BR2_PACKAGE_INPUT_EVENT_DAEMON
+	help
+	  Support for the Banana Pi BPI-M1 single-board computer, the
+	  first Banana Pi, with an Allwinner A20 dual-core Cortex-A7,
+	  1 GiB DDR3, Gigabit Ethernet, SATA and an SD card slot.

board/arm/bananapi-bpi-m1/LICENSE

@@ -0,0 +1,13 @@
+Copyright (c) 2026 The KernelKit Authors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

board/arm/bananapi-bpi-m1/README.md

@@ -0,0 +1,114 @@
+Banana Pi BPI-M1
+================
+
+The [BPI-M1][1] is the first Banana Pi board, powered by the Allwinner
+A20 dual-core Cortex-A7 @ 1 GHz with 1 GB DDR3 RAM.
+
+The board features:
+
+- Gigabit Ethernet
+- SD card slot (full size)
+- SATA 2.0 port
+- 2x USB 2.0 host, 1x micro USB OTG
+- HDMI, composite video and audio out
+- 26-pin GPIO header
+
+> [!NOTE]
+> The BPI-M1+ is a different board with its own device tree and is not
+> covered by this BSP.
+
+How to Build
+------------
+
+There are no pre-built images for ARM 32-bit, so build both Infix and
+the bootloader from source.
+
+1. Build the bootloader
+
+        make O=x-boot-bpi-m1 bpi_m1_boot_defconfig
+        make O=x-boot-bpi-m1
+
+2. Build Infix
+
+        make O=x-arm arm_defconfig
+        make O=x-arm
+
+3. Create the SD card image
+
+        ./utils/mkimage.sh -b x-boot-bpi-m1 -r x-arm bananapi-bpi-m1
+
+To test only the bootloader, e.g., to verify the console, create a
+boot-only image after step 1:
+
+        ./utils/mkimage.sh -B -b x-boot-bpi-m1 bananapi-bpi-m1
+
+Flashing to SD Card
+-------------------
+
+[Flash the image][0] to an SD card (at least 2 GB):
+
+```bash
+sudo bmaptool copy x-boot-bpi-m1/images/infix-bpi-m1-sdcard.img /dev/sdX
+```
+
+> [!WARNING]
+> Ensure `/dev/sdX` is the correct device for your SD card and not used
+> by the host system!  Use `lsblk` to verify.
+
+Booting the Board
+-----------------
+
+1. Insert the flashed SD card
+2. Connect an Ethernet cable
+3. Power up the board, 5V DC via the micro USB port
+4. Find the assigned IP and SSH in, default login: `admin` / `admin`
+
+The board has no user button, so U-Boot always runs in developer mode.
+Use `bootmenu` on the console for factory reset.
+
+LEDs and Buttons
+----------------
+
+| **Stage**      | **USR** (green) |
+|----------------|-----------------|
+| U-Boot         | on              |
+| System loading | 1 Hz            |
+| System up      | on              |
+| Locate         | 1 Hz            |
+| Fail safe      | 5 Hz            |
+| Panic          | 5 Hz            |
+
+The Ethernet port LEDs show link and activity.
+
+The power button powers on the board, and a short press when running
+powers it off.  The reset button is a hardware reset.
+
+Unsupported Features
+--------------------
+
+The following hardware has no driver enabled in Infix:
+
+- Analog audio and composite video out
+- HDMI audio, not supported by mainline Linux on the A20
+- IR receiver
+- Micro USB OTG port
+- Mali-400 GPU and video decoder
+
+Console Port
+------------
+
+<img align="right" src="uart-pins.png" alt="UART pins" width=360 padding=10>
+
+The debug console is UART0, TX and RX on header J11 and GND on the
+neighboring header J12:
+
+- Baud rate: 115200
+- Data bits: 8
+- Parity: None
+- Stop bits: 1
+
+> [!WARNING]
+> Use only 3.3V serial adapters.
+
+[0]: https://www.kernelkit.org/posts/flashing-sdcard/
+[1]: https://docs.banana-pi.org/en/BPI-M1/BananaPi_BPI-M1

board/arm/bananapi-bpi-m1/bananapi-bpi-m1.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  d48246c717b505cc11df95171f2fd548b389e1a463f1af4c68d0b69fe0d1009b  LICENSE

board/arm/bananapi-bpi-m1/bananapi-bpi-m1.mk

@@ -0,0 +1,84 @@
+# Banana Pi BPI-M1 kernel configuration fixups
+define BANANAPI_BPI_M1_LINUX_CONFIG_FIXUPS
+	# Allwinner A20 SoC
+	$(call KCONFIG_ENABLE_OPT,CONFIG_ARCH_SUNXI)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_MACH_SUN7I)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_SUNXI_SRAM)
+
+	# Serial console
+	$(call KCONFIG_ENABLE_OPT,CONFIG_SERIAL_8250)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_SERIAL_8250_CONSOLE)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_SERIAL_8250_DW)
+
+	# Network: GMAC with Realtek PHY
+	$(call KCONFIG_ENABLE_OPT,CONFIG_NET_VENDOR_STMICRO)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_STMMAC_ETH)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_STMMAC_PLATFORM)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_DWMAC_SUNXI)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_REALTEK_PHY)
+
+	# MMC/SD and SATA
+	$(call KCONFIG_ENABLE_OPT,CONFIG_MMC_SUNXI)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_AHCI_SUNXI)
+
+	# AXP209 PMIC, supplies the CPU and USB VBUS regulators
+	$(call KCONFIG_ENABLE_OPT,CONFIG_I2C)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_I2C_MV64XXX)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_MFD_AXP20X_I2C)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_REGULATOR_AXP20X)
+
+	# USB Host, the PHY depends on POWER_SUPPLY, with keyboard and mouse
+	$(call KCONFIG_ENABLE_OPT,CONFIG_POWER_SUPPLY)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_PHY_SUN4I_USB)
+	$(call KCONFIG_SET_OPT,CONFIG_USB_EHCI_HCD,m)
+	$(call KCONFIG_SET_OPT,CONFIG_USB_EHCI_HCD_PLATFORM,m)
+	$(call KCONFIG_SET_OPT,CONFIG_USB_OHCI_HCD,m)
+	$(call KCONFIG_SET_OPT,CONFIG_USB_OHCI_HCD_PLATFORM,m)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_USB_HID)
+	$(call KCONFIG_SET_OPT,CONFIG_HID_GENERIC,m)
+
+	# Power button on the AXP209, KEY_POWER for input-event-daemon
+	$(call KCONFIG_ENABLE_OPT,CONFIG_INPUT_MISC)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_INPUT_AXP20X_PEK)
+
+	# SPI header
+	$(call KCONFIG_ENABLE_OPT,CONFIG_SPI_SUN4I)
+
+	# Temperature: SoC sensor in the touchscreen controller, used by
+	# the cpu-thermal zone to throttle, and AXP209 die temp over IIO
+	$(call KCONFIG_ENABLE_OPT,CONFIG_TOUCHSCREEN_SUN4I)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_CPU_THERMAL)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_IIO)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_AXP20X_ADC)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_SENSORS_IIO_HWMON)
+
+	# LEDs: green user LED on GPIO, RTL8211E PHY LEDs offloaded to
+	# the PHY with the netdev trigger
+	$(call KCONFIG_ENABLE_OPT,CONFIG_LEDS_GPIO)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_LEDS_TRIGGER_NETDEV)
+
+	# HDMI output with framebuffer console, no HDMI audio in mainline
+	$(call KCONFIG_ENABLE_OPT,CONFIG_DRM)
+	$(call KCONFIG_SET_OPT,CONFIG_DRM_SUN4I,m)
+	$(call KCONFIG_SET_OPT,CONFIG_DRM_SUN4I_HDMI,m)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_DRM_SUN4I_HDMI_CEC)
+	$(call KCONFIG_SET_OPT,CONFIG_DRM_SUN4I_BACKEND,m)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_DRM_FBDEV_EMULATION)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_FB)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_FRAMEBUFFER_CONSOLE)
+
+	# Watchdog, RTC and SID (unique chip ID)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_WATCHDOG)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_SUNXI_WATCHDOG)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_RTC_CLASS)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_RTC_DRV_SUNXI)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_NVMEM)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_NVMEM_SUNXI_SID)
+
+	# Crypto hardware acceleration
+	$(call KCONFIG_ENABLE_OPT,CONFIG_CRYPTO_DEV_ALLWINNER)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_CRYPTO_DEV_SUN4I_SS)
+endef
+
+$(eval $(ix-board))
+$(eval $(generic-package))

board/arm/bananapi-bpi-m1/dts/Makefile

@@ -0,0 +1 @@
+dtb-y += allwinner/sun7i-a20-bananapi.dtb

board/arm/bananapi-bpi-m1/dts/allwinner/infix.dtsi

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Common Infix OS defaults
+ */
+
+/ {
+	chosen {
+		infix {
+			/* Default admin user password: 'admin' */
+			factory-password-hash = "$5$mI/zpOAqZYKLC2WU$i7iPzZiIjOjrBF3NyftS9CCq8dfYwHwrmUK097Jca9A";
+		};
+	};
+};

board/arm/bananapi-bpi-m1/dts/allwinner/sun7i-a20-bananapi.dts

@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Infix OS device tree for Banana Pi BPI-M1
+ */
+
+#include <arm/allwinner/sun7i-a20-bananapi.dts>
+#include "infix.dtsi"
+
+/* Only used by arch/arm topology to compare cores, silences boot errors */
+&cpu0 {
+	clock-frequency = <960000000>;
+};
+
+&cpu1 {
+	clock-frequency = <960000000>;
+};
+
+/* Keep the LED lit by U-Boot until iitod takes over */
+&{/leds/led} {
+	default-state = "keep";
+};

board/arm/bananapi-bpi-m1/genimage.cfg.in

@@ -0,0 +1,78 @@
+# Disk image for Banana Pi BPI-M1 (Allwinner A20)
+
+image cfg.ext4 {
+	empty = true
+	temporary = true
+	size = 16M
+
+	ext4 {
+		label = "cfg"
+                use-mke2fs = true
+                features = "uninit_bg"
+                extraargs = "-m 0 -i 4096"
+	}
+}
+
+# The /var partition will be expanded automatically at first boot
+# to use the full size of the SD-card or eMMC media.
+image var.ext4 {
+	empty = true
+	temporary = true
+	size = 128M
+
+	ext4 {
+		label = "var"
+                use-mke2fs = true
+                features = "uninit_bg"
+                extraargs = "-m 0 -i 4096"
+	}
+}
+
+image #IX_ID##VERSION#-bpi-m1-#TARGET#.img {
+	hdimage {
+		partition-table-type = "gpt"
+		# The A20 boot ROM loads the SPL from 8 KiB, move the
+		# GPT partition entries out of its way
+		gpt-location = 1M
+	}
+
+	partition u-boot {
+		in-partition-table = "no"
+		image = "u-boot-sunxi-with-spl.bin"
+		offset = 8K
+		size = 1016K
+	}
+
+	partition aux {
+		partition-uuid = D4EF35A0-0652-45A1-B3DE-D63339C82035
+		image = "aux.ext4"
+		offset = 2M
+	}
+
+	partition primary {
+		partition-type-uuid = 0FC63DAF-8483-4772-8E79-3D69D8477DE4
+		bootable = true
+		size = 250M
+		image = "rootfs.squashfs"
+	}
+
+	partition secondary {
+		partition-type-uuid = 0FC63DAF-8483-4772-8E79-3D69D8477DE4
+		bootable = true
+		size = 250M
+		image = "rootfs.squashfs"
+	}
+
+	partition cfg {
+		partition-uuid = 7aa497f0-73b5-47e5-b2ab-8752d8a48105
+		image = "cfg.ext4"
+	}
+
+	partition var {
+		partition-uuid = 8046A06A-E45A-4A14-A6AD-6684704A393F
+		image = "var.ext4"
+	}
+}
+
+# Silence genimage warnings
+config {}