Changes between Version 49 and Version 50 of buildroot

Timestamp:

12/02/2021 03:04:53 AM (2 years ago)

Author:

Cale Collins

Comment:

added instruction to swupdate venice, add dtbs, fixed fzwrite length, mmcbootpart 1 not 2.

buildroot

@@ -1026 +1026 @@
 - '''update.sh''': This is the script that SWUpdate runs which we use as both a preinst and psotinst script (via cmdline). We determine the current root device and, flip it, and symlink /dev/update to the device to update to. We don't have to do the image install as we've configured SWUpdate to do that for us in sw-descrption images.
 {{{#!bash
+cat << EOF > sw-descrption
 #!/bin/sh
-cat << EOF > sw-descrption
+
 if [ $# -lt 1 ]; then
         exit 0;
@@ -1097 +1098 @@
 # sign the sw-description
 openssl dgst -sha256 -sign swupdate-priv.pem sw-description > sw-description.sig
-# build swupdate image
-cp output/images/rootfs.ext2.gz ./venice_swupdate.ext2.gz
+}}}
+
+* '''Add device tree files to rootfs and gzip'''
+{{{#!bash
+mount output/rootfs.ext2 /mnt
+cp output/build/linux-v5.10.18-venice/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7*.dtb /mnt/bin/
+umount /mnt
+cp output/images/rootfs.ext2 ./venice_swupdate.ext2
+gzip venice_swupdate.ext2
+}}}
+
+* '''Build swupdate image
+{{{#!bash
 for i in sw-description sw-description.sig update.sh venice_swupdate.ext2.gz; do
         echo $i; done | cpio -ov -H crc > my-software.swu
@@ -1128 +1140 @@
 * '''While in U-Boot install the Buildroot rootfs to the first Linux partition offset (LinuxA)'''
 {{{#!bash
-tftpboot ${loadaddr} venice_swupdate.ext2.gz && gzwrite mmc 0 ${loadaddr} ${filesize} 0x100000 0x2000000 # rootfsA is at 0x2000000 (32MiB) and we use a 1MiB buffer
+tftpboot ${loadaddr} rootfs.ext4.gz && gzwrite mmc 2 ${loadaddr} ${filesize} 0x100000 0x1000000 # rootfsA is at 0x1000000 (16MiB)
 }}}
 * '''In U-Boot set the env to use the ''mmcbootpart'' variable that our update.sh will need in order to toggle the partition after a successful update. Custom bootargs will also be applied in this step.'''
 {{{#!bash
-setenv mmcbootpart 2
+setenv mmcbootpart 1
 
 setenv bootcmd 'setenv bootargs console=${console} root=/dev/mmcblk2p${mmcbootpart} rootwait rw; setenv fsload load mmc 2:${mmcbootpart}; setenv dir /boot; run loadfdt && $fsload ${kernel_addr_r} boot/Image && booti ${kernel_addr_r} - ${fdt_addr_r}'