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mediatek: Moved recovery image creation to include/image-commands.mk

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The recovery image is reqired for D-Link M30 as well. So I moved it to include/image-commands.mk to be able to use it for MT7622 and filogic devices.

Signed-off-by: Roland Reinl <reinlroland+github@gmail.com>
(cherry picked from commit 0e2b7e3bd6)
This commit is contained in:
Roland Reinl
2024-03-30 17:59:14 +01:00
committed by Rafał Miłecki
parent c439003497
commit 08f95e83e4
2 changed files with 52 additions and 27 deletions
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37
include/image-commands.mk
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@@ -226,6 +226,43 @@ define Build/copy-file
cat "$(1)" > "$@"
endef
# Create a header for a D-Link AI series recovery image and add it at the beginning of the image
# Currently supported: AQUILA M30, EAGLE M32 and R32
# Arguments:
# 1: Start string of the header
# 2: Firmware version
# 3: Block start address
# 4: Block length
# 5: Device FMID
define Build/dlink-ai-recovery-header
$(eval header_start=$(word 1,$(1)))
$(eval firmware_version=$(word 2,$(1)))
$(eval block_start=$(word 3,$(1)))
$(eval block_length=$(word 4,$(1)))
$(eval device_fmid=$(word 5,$(1)))
# create $@.header without the checksum
echo -en "$(header_start)\x00\x00" > "$@.header"
# Calculate checksum over data area ($@) and append it to the header.
# The checksum is the 2byte-sum over the whole data area.
# Every overflow during the checksum calculation must increment the current checksum value by 1.
od -v -w2 -tu2 -An --endian little "$@" | awk '{ s+=$$1; } END { s%=65535; printf "%c%c",s%256,s/256; }' >> "$@.header"
echo -en "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00" >> "$@.header"
echo -en "$(firmware_version)" >> "$@.header"
# Only one block supported: Erase start/length is identical to data start/length
echo -en "$(block_start)$(block_length)$(block_start)$(block_length)" >> "$@.header"
# Only zeros
echo -en "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" >> "$@.header"
# Last 16 bytes, but without checksum
echo -en "\x42\x48\x02\x00\x00\x00\x08\x00\x00\x00\x00\x00" >> "$@.header"
echo -en "$(device_fmid)" >> "$@.header"
# Calculate and append checksum: The checksum must be set so that the 2byte-sum of the whole header is 0.
# Every overflow during the checksum calculation must increment the current checksum value by 1.
od -v -w2 -tu2 -An --endian little "$@.header" | awk '{s+=65535-$$1;}END{s%=65535;printf "%c%c",s%256,s/256;}' >> "$@.header"
cat "$@.header" "$@" > "$@.new"
mv "$@.new" "$@"
rm "$@.header"
endef
define Build/dlink-sge-image
$(STAGING_DIR_HOST)/bin/dlink-sge-image $(1) $@ $@.enc
mv $@.enc $@