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nerves_system_br
1.8.3
1.34.0
1.33.9
1.33.8
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1.33.5
1.33.4
1.33.3
1.33.2
1.33.1
1.33.0
1.32.5
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1.32.3
1.32.2
1.32.1
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1.31.6
1.31.5
1.31.4
1.31.3
1.31.2
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1.30.1
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1.29.3
1.29.2
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1.28.3
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1.28.1
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1.22.4
1.22.3
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1.22.1
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1.21.6
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1.21.4
1.21.3
1.21.2
1.21.1
1.21.0
1.20.6
1.20.5
1.20.4
1.20.3
1.20.2
1.20.1
1.20.0
1.19.1
1.19.0
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1.18.5
1.18.4
1.18.3
1.18.2
1.18.1
1.18.0
1.17.4
1.17.3
1.17.2
1.17.1
1.17.0
1.16.5
1.16.4
1.16.3
1.16.2
1.16.1
1.16.0
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1.14.5
1.14.4
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1.13.3
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0.17.0
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0.8.1
0.8.0
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0.5.2
0.5.1
0.5.0
0.4.2
0.4.1
Nerves System BR - Buildroot based build platform for Nerves Systems
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Files
patches/buildroot/0014-board-raspberrypi-add-support-for-the-new-pi4.patch
From 2561e42a72cf646edb05e65cca38045e5242095c Mon Sep 17 00:00:00 2001
From: Michael Cullen <michael@michaelcullen.name>
Date: Sat, 29 Jun 2019 19:32:38 +0100
Subject: [PATCH] board/raspberrypi: add support for the new pi4
This is based on the pi3 defconfig. There is currently no 64-bit support
since the upstream kernel does not build in this configuration.
Signed-off-by: Michael Cullen <michael@michaelcullen.name>
---
board/raspberrypi/genimage-raspberrypi4.cfg | 30 ++++++++++++++++
board/raspberrypi/readme.txt | 8 ++++-
board/raspberrypi4 | 1 +
configs/raspberrypi4_defconfig | 38 +++++++++++++++++++++
4 files changed, 76 insertions(+), 1 deletion(-)
create mode 100644 board/raspberrypi/genimage-raspberrypi4.cfg
create mode 120000 board/raspberrypi4
create mode 100644 configs/raspberrypi4_defconfig
diff --git a/board/raspberrypi/genimage-raspberrypi4.cfg b/board/raspberrypi/genimage-raspberrypi4.cfg
new file mode 100644
index 0000000000..4e4742f3ef
--- /dev/null
+++ b/board/raspberrypi/genimage-raspberrypi4.cfg
@@ -0,0 +1,30 @@
+image boot.vfat {
+ vfat {
+ files = {
+ "bcm2711-rpi-4-b.dtb",
+ "rpi-firmware/cmdline.txt",
+ "rpi-firmware/config.txt",
+ "rpi-firmware/fixup4.dat",
+ "rpi-firmware/start4.elf",
+ "rpi-firmware/overlays",
+ "zImage"
+ }
+ }
+ size = 32M
+}
+
+image sdcard.img {
+ hdimage {
+ }
+
+ partition boot {
+ partition-type = 0xC
+ bootable = "true"
+ image = "boot.vfat"
+ }
+
+ partition rootfs {
+ partition-type = 0x83
+ image = "rootfs.ext4"
+ }
+}
diff --git a/board/raspberrypi/readme.txt b/board/raspberrypi/readme.txt
index 9f91581054..69c9f9b20a 100644
--- a/board/raspberrypi/readme.txt
+++ b/board/raspberrypi/readme.txt
@@ -8,6 +8,7 @@ These instructions apply to all models of the Raspberry Pi:
- the "enhanced" models A+ and B+,
- the model B2 (aka Raspberry Pi 2)
- the model B3 (aka Raspberry Pi 3).
+ - the model B4 (aka Raspberry Pi 4).
How to build it
===============
@@ -34,6 +35,10 @@ For model 3 B and B+:
$ make raspberrypi3_defconfig
+For model 4 B:
+
+ $ make raspberrypi4_defconfig
+
Build the rootfs
----------------
@@ -57,6 +62,7 @@ After building, you should obtain this tree:
+-- bcm2709-rpi-2-b.dtb [1]
+-- bcm2710-rpi-3-b.dtb [1]
+-- bcm2710-rpi-3-b-plus.dtb [1]
+ +-- bcm2711-rpi-4-b.dtb [1]
+-- boot.vfat
+-- rootfs.ext4
+-- rpi-firmware/
@@ -72,7 +78,7 @@ After building, you should obtain this tree:
[1] Not all of them will be present, depending on the RaspberryPi
model you are using.
-[2] Only for the Raspberry Pi 3 Model (overlay pi3-miniuart-bt is needed
+[2] Only for the Raspberry Pi 3/4 Models (overlay pi3-miniuart-bt is needed
to enable the RPi3 serial console otherwise occupied by the bluetooth
chip). Alternative would be to disable the serial console in cmdline.txt
and /etc/inittab.
diff --git a/board/raspberrypi4 b/board/raspberrypi4
new file mode 120000
index 0000000000..fcdafc81ed
--- /dev/null
+++ b/board/raspberrypi4
@@ -0,0 +1 @@
+raspberrypi
\ No newline at end of file
diff --git a/configs/raspberrypi4_defconfig b/configs/raspberrypi4_defconfig
new file mode 100644
index 0000000000..a15a729e73
--- /dev/null
+++ b/configs/raspberrypi4_defconfig
@@ -0,0 +1,38 @@
+BR2_arm=y
+BR2_cortex_a72=y
+BR2_ARM_FPU_NEON_VFPV4=y
+
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
+
+BR2_SYSTEM_DHCP="eth0"
+
+# Linux headers same as kernel, a 4.19 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_19=y
+
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,eb0360356344d8ba633e61936c794aa46a02397f)/linux-eb0360356344d8ba633e61936c794aa46a02397f.tar.gz"
+BR2_LINUX_KERNEL_DEFCONFIG="bcm2711"
+
+# Build the DTB from the kernel sources
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2711-rpi-4-b"
+
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+
+BR2_PACKAGE_RPI_FIRMWARE=y
+BR2_PACKAGE_RPI_FIRMWARE_VARIANT_PI4=y
+
+# 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/raspberrypi4/post-build.sh"
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypi4/post-image.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="--add-pi3-miniuart-bt-overlay"
--
2.17.1