From: "Gaël PORTAY" <gael.portay@rtone.fr>
To: buildroot@buildroot.org
Cc: "Adam Duskett" <adam.duskett@amarulasolutions.com>,
"Gaël PORTAY" <gael.portay@rtone.fr>,
"Martin Bark" <martin@barkynet.com>,
"Julien Grossholtz" <julien.grossholtz@openest.io>,
"Yann E . MORIN" <yann.morin.1998@free.fr>
Subject: [Buildroot] [RESEND PATCH v3 1/1] configs: add raspberrypi 5 defconfig
Date: Sat, 27 Apr 2024 04:04:31 +0200 [thread overview]
Message-ID: <20240427020431.415608-1-gael.portay@rtone.fr> (raw)
This configuration builds an image for the RaspberryPi 5.
Cc: Adam Duskett <adam.duskett@amarulasolutions.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Gaël PORTAY <gael.portay@rtone.fr>
---
Dear maintainers,
That change adds the raspberrypi5_defconfig for the Raspberry Pi 5
64-bit.
It uses the defconfig bcm2712_defconfig[2] and the device-tree source
bcm2712-rpi-5-b.dts[3].
Note: The kernel defconfig defaults to 16k page-size; a kernel fragment
is added to use a 4k page-size to compile and run using all toolchains.
The Raspberry Pi 5 has now a dedicated debug UART connector[4] (it is
always active and enabled; there is no more need to enable_uart=1 in the
file config.txt).
The UART device name changes to ttyAMA10 and the command line has to be
updated in the file cmdline.txt.
The Raspberry Pi 5 only supports 64-bit kernel[5].
Tested on internal toolchain:
[ 0.000000] Linux version 6.1.61-v8_16k (gportay@archlinux) (aarch64-buildroot-linux-gnu-gcc.br_real (Buildroot 2023.11-1117-g95a905918c) 12.3.0, GNU ld (GNU Binutils) 2.40) #1 SMP PREEMPT Fri Feb 9 20:09:08 CET 2024
(...)
# grep PageSize /proc/1/smaps | sort -u
KernelPageSize: 4 kB
MMUPageSize: 4 kB
Tested on external Bootlin toolchain:
[ 0.000000] Linux version 6.1.61-v8_16k (gportay@archlinux) (aarch64-linux-gcc.br_real (Buildroot 2021.11-10014-g6257e8c) 13.2.0, GNU ld (GNU Binutils) 2.41) #1 SMP PREEMPT Fri Feb 9 20:54:08 CET 2024
(...)
# grep PageSize /proc/1/smaps | sort -u
KernelPageSize: 4 kB
MMUPageSize: 4 kB
Tested on external ARM toolchain:
[ 0.000000] Linux version 6.1.61-v8_16k (gportay@archlinux) (aarch64-none-linux-gnu-gcc (Arm GNU Toolchain 13.2.rel1 (Build arm-13.7)) 13.2.1 20231009, GNU ld (Arm GNU Toolchain 13.2.rel1 (Build arm-13.7)) 2.41.0.20231009) #1 SMP PREEMPT Fri Feb 9 21:00:24 CET 2024
(...)
# grep PageSize /proc/1/smaps | sort -u
KernelPageSize: 4 kB
MMUPageSize: 4 kB
Changes since RFC:
- Update README to add model Pi 5 B
- Add support for 64K MMU page-size for ARM64 and Raspberry Pi 5
- Add Raspberry Pi 5 specific cmdline_5.txt to set its console on its
debug uart (ttyAMA10 instead of ttyAMA0)
- Remove 32-bit variant since Raspberry Pi 5 supports booting a 64-bit
kernel only
- Remove the property arm_64bit=1 from config_5_64bit.txt
- Remove the _64bit suffix
- Remove unecessary Pi 5 variant from package rpi-firmware
Changes since v1:
- Rebase on top of master
- Remove the bumps for the rpi-firmware and linux packages
- Bump the kernel to linux-17f135b742c4edb340afb365873c3a574f7e16cb
(6.1.61, i.e. the same version as the other raspberrypi defconfigs)
Changes since v2:
- Rebase on top of master (remove applied patch)
- Add a kernel fragment to force 4k page-size
- Remove BR2_ARM64_PAGE_SIZE_16K from the board's defconfig
[0]: https://www.raspberrypi.com/documentation/computers/raspberry-pi-5.html#introduction
[1]: https://www.raspberrypi.com/documentation/computers/config_txt.html#kernel
[2]: https://github.com/raspberrypi/linux/commit/9cfb379147f803b0362b0fe249e5b145d232bea3
[3]: https://github.com/raspberrypi/linux/commit/1196bf1a7736ff0ab79f5012fa84082e298031a7
[4]: https://www.raspberrypi.com/documentation/computers/raspberry-pi-5.html#uart-connector
[5]: https://www.raspberrypi.com/documentation/computers/config_txt.html#arm_64bit
Kind Regards,
Gaël PORTAY
board/raspberrypi/cmdline_5.txt | 1 +
board/raspberrypi/config_5.txt | 14 ++++++
board/raspberrypi/linux-4k-page-size.fragment | 1 +
board/raspberrypi/readme.txt | 6 +++
board/raspberrypi5 | 1 +
configs/raspberrypi5_defconfig | 47 +++++++++++++++++++
6 files changed, 70 insertions(+)
create mode 100644 board/raspberrypi/cmdline_5.txt
create mode 100644 board/raspberrypi/config_5.txt
create mode 100644 board/raspberrypi/linux-4k-page-size.fragment
create mode 120000 board/raspberrypi5
create mode 100644 configs/raspberrypi5_defconfig
diff --git a/board/raspberrypi/cmdline_5.txt b/board/raspberrypi/cmdline_5.txt
new file mode 100644
index 0000000000..ac457353e2
--- /dev/null
+++ b/board/raspberrypi/cmdline_5.txt
@@ -0,0 +1 @@
+root=/dev/mmcblk0p2 rootwait console=tty1 console=ttyAMA10,115200
diff --git a/board/raspberrypi/config_5.txt b/board/raspberrypi/config_5.txt
new file mode 100644
index 0000000000..bbed19fe46
--- /dev/null
+++ b/board/raspberrypi/config_5.txt
@@ -0,0 +1,14 @@
+# Please note that this is only a sample, we recommend you to change it to fit
+# your needs.
+# You should override this file using BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE.
+# See http://buildroot.org/manual.html#rootfs-custom
+# and http://elinux.org/RPiconfig for a description of config.txt syntax
+
+kernel=Image
+
+# To use an external initramfs file
+#initramfs rootfs.cpio.gz
+
+# Disable overscan assuming the display supports displaying the full resolution
+# If the text shown on the screen disappears off the edge, comment this out
+disable_overscan=1
diff --git a/board/raspberrypi/linux-4k-page-size.fragment b/board/raspberrypi/linux-4k-page-size.fragment
new file mode 100644
index 0000000000..5df91df1aa
--- /dev/null
+++ b/board/raspberrypi/linux-4k-page-size.fragment
@@ -0,0 +1 @@
+CONFIG_ARM64_4K_PAGES=y
diff --git a/board/raspberrypi/readme.txt b/board/raspberrypi/readme.txt
index 9202b5ff37..aa6421ea01 100644
--- a/board/raspberrypi/readme.txt
+++ b/board/raspberrypi/readme.txt
@@ -10,6 +10,7 @@ These instructions apply to all models of the Raspberry Pi:
- the model B3 (aka Raspberry Pi 3).
- the model B4 (aka Raspberry Pi 4).
- the model CM4 (aka Raspberry Pi Compute Module 4 and IO Board).
+ - the model B5 (aka Raspberry Pi 5).
How to build it
===============
@@ -64,6 +65,10 @@ or for CM4 (on IO Board - 64 bit):
$ make raspberrypicm4io_64_defconfig
+For model 5 B:
+
+ $ make raspberrypi5_defconfig
+
Build the rootfs
----------------
@@ -94,6 +99,7 @@ After building, you should obtain this tree:
+-- bcm2710-rpi-cm3.dtb [1]
+-- bcm2711-rpi-4-b.dtb [1]
+-- bcm2711-rpi-cm4.dtb [1]
+ +-- bcm2712-rpi-5-b.dtb [1]
+-- bcm2837-rpi-3-b.dtb [1]
+-- boot.vfat
+-- rootfs.ext4
diff --git a/board/raspberrypi5 b/board/raspberrypi5
new file mode 120000
index 0000000000..fcdafc81ed
--- /dev/null
+++ b/board/raspberrypi5
@@ -0,0 +1 @@
+raspberrypi
\ No newline at end of file
diff --git a/configs/raspberrypi5_defconfig b/configs/raspberrypi5_defconfig
new file mode 100644
index 0000000000..d0760824bd
--- /dev/null
+++ b/configs/raspberrypi5_defconfig
@@ -0,0 +1,47 @@
+BR2_aarch64=y
+BR2_cortex_a76_a55=y
+BR2_ARM_FPU_VFPV4=y
+
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
+
+BR2_SYSTEM_DHCP="eth0"
+
+# Linux headers same as kernel, a 6.1 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1=y
+
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/raspberrypi/linux-4k-page-size.fragment"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,17f135b742c4edb340afb365873c3a574f7e16cb)/linux-17f135b742c4edb340afb365873c3a574f7e16cb.tar.gz"
+BR2_LINUX_KERNEL_DEFCONFIG="bcm2712"
+
+# Build the DTB from the kernel sources
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="broadcom/bcm2712-rpi-5-b"
+
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+
+BR2_PACKAGE_RPI_FIRMWARE=y
+BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE="board/raspberrypi5/config_5.txt"
+BR2_PACKAGE_RPI_FIRMWARE_CMDLINE_FILE="board/raspberrypi5/cmdline_5.txt"
+# BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS is not set
+
+# Required tools to create the SD image
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y
+
+# Filesystem / image
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
+# BR2_TARGET_ROOTFS_TAR is not set
+BR2_ROOTFS_POST_BUILD_SCRIPT="board/raspberrypi5/post-build.sh"
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypi5/post-image.sh"
+
+# Enable compressed kernel module support
+BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
+BR2_PACKAGE_KMOD_TOOLS=y
+BR2_PACKAGE_XZ=y
+BR2_PACKAGE_KMOD=y
+BR2_PACKAGE_HOST_KMOD_XZ=y
--
2.44.0
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot
reply other threads:[~2024-04-27 2:04 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240427020431.415608-1-gael.portay@rtone.fr \
--to=gael.portay@rtone.fr \
--cc=adam.duskett@amarulasolutions.com \
--cc=buildroot@buildroot.org \
--cc=julien.grossholtz@openest.io \
--cc=martin@barkynet.com \
--cc=yann.morin.1998@free.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.