aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/ipq806x/base-files/lib
diff options
context:
space:
mode:
authorSven Eckelmann <sven.eckelmann@open-mesh.com>2017-11-30 14:30:06 +0100
committerMathias Kresin <dev@kresin.me>2018-01-13 08:00:14 +0100
commit86e18f6706e1f2c881fb6a2b9facf108573416e6 (patch)
tree5d9fcc9b5552c7b82efad5cedcfe4d4efdecd870 /target/linux/ipq806x/base-files/lib
parentc242643d1aba0f065b4a465cd78f0c54dd7cb3b2 (diff)
downloadupstream-86e18f6706e1f2c881fb6a2b9facf108573416e6.tar.gz
upstream-86e18f6706e1f2c881fb6a2b9facf108573416e6.tar.bz2
upstream-86e18f6706e1f2c881fb6a2b9facf108573416e6.zip
ipq806x: add support for OpenMesh A42
* QCA IPQ401x * 256 MB of RAM * 32 MB of SPI NOR flash (s25fl256s1) - 2x 15 MB available; but one of the 15 MB regions is the recovery image * 2T2R 2.4 GHz - QCA4019 hw1.0 (SoC) - requires special BDF in QCA4019/hw1.0/board-2.bin with bus=ahb,bmi-chip-id=0,bmi-board-id=16,variant=OM-A42 * 2T2R 5 GHz - QCA4019 hw1.0 (SoC) - requires special BDF in QCA4019/hw1.0/board-2.bin with bus=ahb,bmi-chip-id=0,bmi-board-id=17,variant=OM-A42 * multi-color LED (controlled via red/green/blue GPIOs) * 1x button (reset; kmod-input-gpio-keys compatible) * external watchdog - triggered GPIO * 1x USB (xHCI) * TTL pins are on board (arrow points to VCC, then follows: GND, TX, RX) * 2x gigabit ethernet * powered only via POE - 802.3af POE on Ethernet 1 - 18-24v passive POE (mode B) on Ethernet 2 The tool ap51-flash (https://github.com/ap51-flash/ap51-flash) should be used to transfer the factory image to the u-boot when the device boots up. Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>
Diffstat (limited to 'target/linux/ipq806x/base-files/lib')
-rw-r--r--target/linux/ipq806x/base-files/lib/upgrade/openmesh.sh110
-rw-r--r--target/linux/ipq806x/base-files/lib/upgrade/platform.sh4
2 files changed, 114 insertions, 0 deletions
diff --git a/target/linux/ipq806x/base-files/lib/upgrade/openmesh.sh b/target/linux/ipq806x/base-files/lib/upgrade/openmesh.sh
new file mode 100644
index 0000000000..a2c79d9e44
--- /dev/null
+++ b/target/linux/ipq806x/base-files/lib/upgrade/openmesh.sh
@@ -0,0 +1,110 @@
+# The U-Boot loader of the OpenMesh devices requires image sizes and
+# checksums to be provided in the U-Boot environment.
+# The OpenMesh devices come with 2 main partitions - while one is active
+# sysupgrade will flash the other. The boot order is changed to boot the
+# newly flashed partition. If the new partition can't be booted due to
+# upgrade failures the previously used partition is loaded.
+
+platform_do_upgrade_openmesh() {
+ local tar_file="$1"
+ local restore_backup
+ local primary_kernel_mtd
+
+ local setenv_script="/tmp/fw_env_upgrade"
+
+ local kernel_mtd="$(find_mtd_index $PART_NAME)"
+ local kernel_offset="$(cat /sys/class/mtd/mtd${kernel_mtd}/offset)"
+ local total_size="$(cat /sys/class/mtd/mtd${kernel_mtd}/size)"
+
+ # detect to which flash region the new image is written to.
+ #
+ # 1. check what is the mtd index for the first flash region on this
+ # device
+ # 2. check if the target partition ("inactive") has the mtd index of
+ # the first flash region
+ #
+ # - when it is: the new bootseq will be 1,2 and the first region is
+ # modified
+ # - when it isnt: bootseq will be 2,1 and the second region is
+ # modified
+ #
+ # The detection has to be done via the hardcoded mtd partition because
+ # the current boot might be done with the fallback region. Let us
+ # assume that the current bootseq is 1,2. The bootloader detected that
+ # the image in flash region 1 is corrupt and thus switches to flash
+ # region 2. The bootseq in the u-boot-env is now still the same and
+ # the sysupgrade code can now only rely on the actual mtd indexes and
+ # not the bootseq variable to detect the currently booted flash
+ # region/image.
+ #
+ # In the above example, an implementation which uses bootseq ("1,2") to
+ # detect the currently booted image would assume that region 1 is booted
+ # and then overwrite the variables for the wrong flash region (aka the
+ # one which isn't modified). This could result in a device which doesn't
+ # boot anymore to Linux until it was reflashed with ap51-flash.
+ local next_boot_part="1"
+ case "$(board_name)" in
+ openmesh,a42)
+ primary_kernel_mtd=8
+ ;;
+ *)
+ echo "failed to detect primary kernel mtd partition for board"
+ return 1
+ ;;
+ esac
+ [ "$kernel_mtd" = "$primary_kernel_mtd" ] || next_boot_part="2"
+
+ local board_dir=$(tar tf $tar_file | grep -m 1 '^sysupgrade-.*/$')
+ board_dir=${board_dir%/}
+
+ local kernel_length=$(tar xf $tar_file ${board_dir}/kernel -O | wc -c)
+ local rootfs_length=$(tar xf $tar_file ${board_dir}/root -O | wc -c)
+ # rootfs without EOF marker
+ rootfs_length=$((rootfs_length-4))
+
+ local kernel_md5=$(tar xf $tar_file ${board_dir}/kernel -O | md5sum); kernel_md5="${kernel_md5%% *}"
+ # md5 checksum of rootfs with EOF marker
+ local rootfs_md5=$(tar xf $tar_file ${board_dir}/root -O | dd bs=1 count=$rootfs_length | md5sum); rootfs_md5="${rootfs_md5%% *}"
+
+ #
+ # add tar support to get_image() to use default_do_upgrade() instead?
+ #
+
+ # take care of restoring a saved config
+ [ "$SAVE_CONFIG" -eq 1 ] && restore_backup="${MTD_CONFIG_ARGS} -j ${CONF_TAR}"
+
+ # write concatinated kernel + rootfs to flash
+ tar xf $tar_file ${board_dir}/kernel ${board_dir}/root -O | \
+ mtd $restore_backup write - $PART_NAME
+
+ # prepare new u-boot env
+ if [ "$next_boot_part" = "1" ]; then
+ echo "bootseq 1,2" > $setenv_script
+ else
+ echo "bootseq 2,1" > $setenv_script
+ fi
+
+ printf "kernel_size_%i 0x%08x\n" $next_boot_part $kernel_length >> $setenv_script
+ printf "vmlinux_start_addr 0x%08x\n" ${kernel_offset} >> $setenv_script
+ printf "vmlinux_size 0x%08x\n" ${kernel_length} >> $setenv_script
+ printf "vmlinux_checksum %s\n" ${kernel_md5} >> $setenv_script
+
+ printf "rootfs_size_%i 0x%08x\n" $next_boot_part $((total_size-kernel_length)) >> $setenv_script
+ printf "rootfs_start_addr 0x%08x\n" $((kernel_offset+kernel_length)) >> $setenv_script
+ printf "rootfs_size 0x%08x\n" ${rootfs_length} >> $setenv_script
+ printf "rootfs_checksum %s\n" ${rootfs_md5} >> $setenv_script
+
+ # store u-boot env changes
+ fw_setenv -s $setenv_script || {
+ echo "failed to update U-Boot environment"
+ return 1
+ }
+}
+
+# create /var/lock for the lock "fw_setenv.lock" of fw_setenv
+# the rest is copied using ipq806x's RAMFS_COPY_BIN and RAMFS_COPY_DATA
+platform_add_ramfs_ubootenv()
+{
+ mkdir -p $RAM_ROOT/var/lock
+}
+append sysupgrade_pre_upgrade platform_add_ramfs_ubootenv
diff --git a/target/linux/ipq806x/base-files/lib/upgrade/platform.sh b/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
index f71ee37d99..5561dd538c 100644
--- a/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
@@ -22,6 +22,10 @@ platform_do_upgrade() {
zyxel,nbg6817)
nand_do_upgrade "$ARGV"
;;
+ openmesh,a42)
+ PART_NAME="inactive"
+ platform_do_upgrade_openmesh "$ARGV"
+ ;;
tplink,c2600)
PART_NAME="os-image:rootfs"
MTD_CONFIG_ARGS="-s 0x200000"