From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Thu, 5 Mar 2015 21:23:33 +0100 Subject: [Buildroot] [PATCH v3 1/1] board: add support for RIoTboard In-Reply-To: <1425574641-28524-1-git-send-email-picmaster@mail.bg> References: <1425574641-28524-1-git-send-email-picmaster@mail.bg> Message-ID: <20150305212333.40293868@free-electrons.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Dear Nikolay Dimitrov, On Thu, 5 Mar 2015 18:57:21 +0200, Nikolay Dimitrov wrote: > This is a small development board, based on Freescale IMX6 Solo SoC > (single core ARM Cortex-A9). The board has excellent support in mainline > U-Boot and Linux. > > Signed-off-by: Nikolay Dimitrov This looks much simpler and nicer! Some remaining comments I forgot to make on earlier versions. > +1. Compiling buildroot > +---------------------- An empty line between the title and the contents of the section would be nice. > +make distclean We generally don't indicate to use 'make distclean' in the other instructions related to board specific details. > +make riotboard_defconfig > +make > + > +2. Installing buildroot > +----------------------- Same: an empty new line here. > +Prepare an SD-card and plug it into your card reader. Write the bootloader to > +your SD-card: > + > +sudo dd if=output/images/u-boot.imx of=/dev/sdX bs=1k seek=1 > + > +Create 1 partition on the SD-card using your favourite tool. The partition > +should be big enough to hold your rootfs, for example 128MiB. Here's how an > +example of such partition layout: > + > + Device Boot Start End Blocks Id System > +/dev/sdX1 2048 264191 131072 83 Linux > + > +Format the SD-card partition with your favourite filesystem: > + > +sudo mkfs.ext2 /dev/sdX1 > + > +Deploy your rootfs to the SD-card: > + > +sudo mkdir /mnt/sdcard/ > +sudo mount /dev/sdX1 /mnt/sdcard/ > +sudo tar xf rootfs.tar -C /mnt/sdcard/ > +sudo umount /dev/sdX1 > + > +3. Running buildroot > +-------------------- Same. > diff --git a/configs/riotboard_defconfig b/configs/riotboard_defconfig > new file mode 100644 > index 0000000..d5b50e9 > --- /dev/null > +++ b/configs/riotboard_defconfig > @@ -0,0 +1,32 @@ > +# architecture > +BR2_arm=y > +BR2_cortex_a9=y I believe you should try to enable BR2_ARM_EABIHF=y. It should really be the default for ARMv7 platforms nowadays, unless you have old non-EABIhf pre-built binaries. > +# system > +BR2_TARGET_GENERIC_GETTY=y > +BR2_TARGET_GENERIC_GETTY_PORT="ttymxc1" > + > +# toolchain > +BR2_TOOLCHAIN_BUILDROOT_LARGEFILE=y No, please don't include largefile support by default. We try to keep the defconfigs minimal. > +# rootfs > +BR2_TARGET_ROOTFS_EXT2=y > +BR2_TARGET_ROOTFS_EXT2_2r1=y > +BR2_ROOTFS_OVERLAY="board/embest/riotboard/rootfs_overlay" > + > +# bootloader > +BR2_TARGET_UBOOT=y > +BR2_TARGET_UBOOT_VERSION="2015.01" > +BR2_TARGET_UBOOT_BOARDNAME="riotboard" > +BR2_TARGET_UBOOT_FORMAT_IMX=y > + > +# kernel headers > +BR2_KERNEL_HEADERS_3_18=y For the kernel headers, please use: BR2_KERNEL_HEADERS_VERSION=y BR2_DEFAULT_KERNEL_VERSION="3.18" BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_18=y That's because the BR2_KERNEL_HEADERS_3_18 option may become deprecated/removed in the future. > +# kernel > +BR2_LINUX_KERNEL=y Please specify: BR2_LINUX_KERNEL_CUSTOM_VERSION=y BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.18" Even if the current default version is fine for you, this default version will change over time, and we want to be sure to rebuild the same kernel version. > +BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7" > +BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x10008000" > +BR2_LINUX_KERNEL_DTS_SUPPORT=y > +BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6dl-riotboard" > +BR2_LINUX_KERNEL_INSTALL_TARGET=y Thanks a lot! Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com