boards: add rpi-zero defconfig (branch yem/rpi-zero)
cover boards: add rpi-zero defconfig (branch yem/rpi-zero)
Hello All!
This small series adds support for the Raspberry Pi Zero.
The first patch bumps rpi-firmware, to get new DT overlays specific to the zero.
The second patch actually adds a defconfig for the rpi0.
Regards,
Yann E. MORIN.
The following changes since commit b2dcb2d6c4144688e2b9ec4d744af306276120f1
fs/common: fix typo in comments (2016-05-08 15:34:52 +0200)
are available in the git repository at:
https://git.busybox.net/~ymorin/git/buildroot
for you to fetch changes up to 6566e90641147f226d7432b25723574dd92d5b69
boards/raspberrypi0: new board (2016-05-08 15:43:18 +0200)
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Yann E. MORIN (2):
package/rpi-firmware: bump version for rpi0
boards/raspberrypi0: new board
board/raspberrypi/genimage-raspberrypi0.cfg | 30 +++++++++++++++++++++++++ board/raspberrypi0 | 1 + configs/raspberrypi0_defconfig | 34 +++++++++++++++++++++++++++++ package/rpi-firmware/rpi-firmware.mk | 2 +- 4 files changed, 66 insertions(+), 1 deletion(-) create mode 100644 board/raspberrypi/genimage-raspberrypi0.cfg create mode 120000 board/raspberrypi0 create mode 100644 configs/raspberrypi0_defconfig
Signature · 6 lines
.-----------------.--------------------.------------------.--------------------. | Yann E. MORIN | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: | | +33 662 376 056 | Software Designer | \ / CAMPAIGN | ___ | | +33 223 225 172 `------------.-------: X AGAINST | \e/ There is no | | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL | v conspiracy. | '------------------------------^-------^------------------^--------------------'
PATCH 1/2 package/rpi-firmware: bump version for rpi0
Although the current version of rpi-firmware we use is working just fine on the rpi-zero, the latest firmware provides a DTB overlay to use the USB OTG device in either host or slave modes.
--- package/rpi-firmware/rpi-firmware.mk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
package/rpi-firmware/rpi-firmware.mk +1 -1
@@ -4,7 +4,7 @@ # ################################################################################ -RPI_FIRMWARE_VERSION = c5e131971c323f5658c7c5d4b1dd105d37903a99 +RPI_FIRMWARE_VERSION = cc6d7bf8b4c03a2a660ff9fdf4083fc165620866 RPI_FIRMWARE_SITE = $(call github,raspberrypi,firmware,$(RPI_FIRMWARE_VERSION)) RPI_FIRMWARE_LICENSE = BSD-3c RPI_FIRMWARE_LICENSE_FILES = boot/LICENCE.broadcom
Signature · 1 line
2.7.4
PATCH 2/2 boards/raspberrypi0: new board
In reply to Yann E. MORINAdd support for the rpi-0, which is basically a rpi (model A+) in a smaller form-factor.
This one does not have an ethernet port, so we just remove it from the configuration (or we could use the existing rasbperrypi_defconfig and suffer froma longer boot time because of the waiting for eth0).
--- board/raspberrypi/genimage-raspberrypi0.cfg | 30 +++++++++++++++++++++++++ board/raspberrypi0 | 1 + configs/raspberrypi0_defconfig | 34 +++++++++++++++++++++++++++++ 3 files changed, 65 insertions(+) create mode 100644 board/raspberrypi/genimage-raspberrypi0.cfg create mode 120000 board/raspberrypi0 create mode 100644 configs/raspberrypi0_defconfig
board/raspberrypi/genimage-raspberrypi0.cfg new file +30 -0
@@ -0,0 +1,30 @@ +image boot.vfat { + vfat { + files = { + "bcm2708-rpi-b-plus.dtb", + "rpi-firmware/bootcode.bin", + "rpi-firmware/cmdline.txt", + "rpi-firmware/config.txt", + "rpi-firmware/fixup.dat", + "rpi-firmware/start.elf", + "kernel-marked/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" + } +}
board/raspberrypi0 new file +1 -0
@@ -0,0 +1 @@ +raspberrypi
configs/raspberrypi0_defconfig new file +34 -0
@@ -0,0 +1,34 @@ +BR2_arm=y +BR2_arm1176jzf_s=y +BR2_ARM_EABIHF=y + +# Linux headers same as kernel, a 4.4 series +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y + +BR2_TOOLCHAIN_BUILDROOT_CXX=y + +BR2_LINUX_KERNEL=y +BR2_LINUX_KERNEL_CUSTOM_GIT=y +BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/raspberrypi/linux.git" +BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="26f3b72a9c049be10e6af196252283e1f6ab9d1f" +BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi" + +# Build the DTBs for A/B from the kernel sources: the zero is the same +# as the A+ model, just in a different form-factor +BR2_LINUX_KERNEL_DTS_SUPPORT=y +BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2708-rpi-b-plus" + +BR2_PACKAGE_RPI_FIRMWARE=y +# 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_TAR is not set +BR2_ROOTFS_POST_BUILD_SCRIPT="board/raspberrypi0/post-build.sh" +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypi0/post-image.sh"
Signature · 1 line
2.7.4
Thomas Petazzoni
Appliedcover boards: add rpi-zero defconfig (branch yem/rpi-zero)
In reply to Yann E. MORINHello,
Quoted 3 lines · Yann E. MORIN
Yann E. MORIN (2):
package/rpi-firmware: bump version for rpi0
boards/raspberrypi0: new board
Applied, thanks!
Thomas
Signature · 3 lines
Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com