From 90ce848980fd5018204fcc3574edc4369381efd3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ga=C3=ABl=20PORTAY?= Date: Tue, 23 Sep 2025 03:09:45 +0200 Subject: [PATCH] raspberrypi2-64.conf: add machine for Raspberry Pi 2B V1.2 (64-bit) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This machine configuration is for the Raspberry Pi 2B V1.2 (64-bit). Note: Raspberry Pi 2 Model B V1.2[1] switched from BCM2836[2] (V1.0, V1.1) to BCM2837[3] that is 64-bit CPU used in Raspberry Pi 3 Model B. BCM2836[2] The Broadcom chip used in the Raspberry Pi 2 Model B. The underlying architecture in BCM2836 is identical to BCM2835. The only significant difference is the removal of the ARM1176JZF-S processor and replacement with a quad-core Cortex-A7 cluster. BCM2837[3] This is the Broadcom chip used in the Raspberry Pi 3 Model B, later models of the Raspberry Pi 2 Model B, and the Raspberry Pi Compute Module 3. The underlying architecture of the BCM2837 is identical to the BCM2836. The only significant difference is the replacement of the ARMv7 quad core cluster with a quad-core ARM Cortex A53 (ARMv8) cluster. The ARM cores run at 1.2GHz, making the device about 50% faster than the Raspberry Pi 2. The VideoCore IV runs at 400MHz. See: Poky (Yocto Project Reference Distro) 5.2.99+snapshot-cfbb00657ab961a3c3a8e6619fc08a2a3f4255c7 raspberrypi2-64 ttyAMA0 raspberrypi2-64 login: root WARNING: Poky is a reference Yocto Project distribution that should be used for testing and development purposes only. It is recommended that you create your own distribution for production use. root@raspberrypi2-64:~# uname -a Linux raspberrypi2-64 6.12.41-v8 #1 SMP PREEMPT Thu Aug 7 16:48:46 UTC 2025 aarch64 GNU/Linux root@raspberrypi2-64:~# cat /proc/device-tree/compatible raspberrypi,2-model-b-rev2brcm,bcm2837 root@raspberrypi2-64:~# tty /dev/ttyAMA0 root@raspberrypi2-64:~# dmesg | head [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034] [ 0.000000] Linux version 6.12.41-v8 (oe-user@oe-host) (aarch64-poky-linux-gcc (GCC) 15.2.0, GNU ld (GNU Binutils) 2.45.0.20250908) #1 SMP PREEMPT Thu Aug 7 16:48:46 UTC 2025 [ 0.000000] KASLR enabled [ 0.000000] random: crng init done [ 0.000000] Machine model: Raspberry Pi 2 Model B Rev 1.2 [ 0.000000] efi: UEFI not found. [ 0.000000] Reserved memory: created CMA memory pool at 0x000000001ec00000, size 256 MiB [ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x000000001ec00000..0x000000002ebfffff (262144 KiB) map reusable linux,cma [ 0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x000000003b3fffff] [1]: https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#flagship-series [2]: https://www.raspberrypi.com/documentation/computers/processors.html#bcm2836 [3]: https://www.raspberrypi.com/documentation/computers/processors.html#bcm2837 Signed-off-by: Gaël PORTAY --- .github/workflows/yocto-builds.yml | 1 + conf/machine/raspberrypi-armv8.conf | 1 + conf/machine/raspberrypi2-64.conf | 30 +++++++++++++++++++++++++++++ conf/machine/raspberrypi3-64.conf | 1 + docs/layer-contents.md | 4 ++++ 5 files changed, 37 insertions(+) create mode 100644 conf/machine/raspberrypi2-64.conf diff --git a/.github/workflows/yocto-builds.yml b/.github/workflows/yocto-builds.yml index 87b009b..b16cb09 100644 --- a/.github/workflows/yocto-builds.yml +++ b/.github/workflows/yocto-builds.yml @@ -20,6 +20,7 @@ jobs: - raspberrypi0-2w - raspberrypi0 - raspberrypi0-wifi + - raspberrypi2-64 - raspberrypi2 - raspberrypi3-64 - raspberrypi3 diff --git a/conf/machine/raspberrypi-armv8.conf b/conf/machine/raspberrypi-armv8.conf index 0b42309..5ba55af 100644 --- a/conf/machine/raspberrypi-armv8.conf +++ b/conf/machine/raspberrypi-armv8.conf @@ -23,6 +23,7 @@ MACHINE_EXTRA_RRECOMMENDS += "\ " RPI_KERNEL_DEVICETREE = " \ + broadcom/bcm2710-rpi-2-b.dtb \ broadcom/bcm2710-rpi-3-b.dtb \ broadcom/bcm2710-rpi-3-b-plus.dtb \ broadcom/bcm2837-rpi-3-b.dtb \ diff --git a/conf/machine/raspberrypi2-64.conf b/conf/machine/raspberrypi2-64.conf new file mode 100644 index 0000000..7eb014e --- /dev/null +++ b/conf/machine/raspberrypi2-64.conf @@ -0,0 +1,30 @@ +#@TYPE: Machine +#@NAME: RaspberryPi 2 V1.2 Development Board +#@DESCRIPTION: Machine configuration for the RaspberryPi 2 in 64 bits mode + +MACHINEOVERRIDES =. "raspberrypi3-64:" + +DEFAULTTUNE ?= "cortexa53-nocrypto" +require conf/machine/include/arm/armv8a/tune-cortexa53.inc +include conf/machine/include/rpi-base.inc + +RPI_KERNEL_DEVICETREE = " \ + broadcom/bcm2710-rpi-2-b.dtb \ + broadcom/bcm2710-rpi-3-b.dtb \ + broadcom/bcm2710-rpi-3-b-plus.dtb \ + broadcom/bcm2837-rpi-3-b.dtb \ + broadcom/bcm2710-rpi-cm3.dtb \ + " + +SDIMG_KERNELIMAGE ?= "kernel8.img" +# When u-boot is enabled we need to use the "Image" format and the "booti" +# command to load the kernel +KERNEL_IMAGETYPE_UBOOT ?= "Image" +# "zImage" not supported on arm64 and ".gz" images not supported by bootloader yet +KERNEL_IMAGETYPE_DIRECT ?= "Image" +KERNEL_BOOTCMD ?= "booti" +UBOOT_MACHINE = "rpi_arm64_config" +SERIAL_CONSOLES ?= "115200;ttyAMA0" + +VC4DTBO ?= "vc4-fkms-v3d" +ARMSTUB ?= "armstub8.bin" diff --git a/conf/machine/raspberrypi3-64.conf b/conf/machine/raspberrypi3-64.conf index b2d64a4..53e7c2a 100644 --- a/conf/machine/raspberrypi3-64.conf +++ b/conf/machine/raspberrypi3-64.conf @@ -16,6 +16,7 @@ require conf/machine/include/arm/armv8a/tune-cortexa53.inc include conf/machine/include/rpi-base.inc RPI_KERNEL_DEVICETREE = " \ + broadcom/bcm2710-rpi-2-b.dtb \ broadcom/bcm2710-rpi-3-b.dtb \ broadcom/bcm2710-rpi-3-b-plus.dtb \ broadcom/bcm2837-rpi-3-b.dtb \ diff --git a/docs/layer-contents.md b/docs/layer-contents.md index 78d66e3..84ea4de 100644 --- a/docs/layer-contents.md +++ b/docs/layer-contents.md @@ -7,6 +7,7 @@ * raspberrypi0-wifi * raspberrypi0-2w-64 * raspberrypi2 +* raspberrypi2-64 (64 bit kernel & userspace) * raspberrypi3 * raspberrypi3-64 (64 bit kernel & userspace) * raspberrypi4 @@ -15,6 +16,9 @@ * raspberrypi-cm (dummy alias for raspberrypi) * raspberrypi-cm3 +Note: The raspberrypi2-64 machine includes 64-bit support for Raspberry Pi 2B +V1.2. + Note: The raspberrypi3 machines include support for Raspberry Pi 3B+. ## Multi-board Machines