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-rw-r--r--target/linux/ar71xx/base-files/lib/preinit/82_patch_ath10k17
1 files changed, 10 insertions, 7 deletions
diff --git a/target/linux/ar71xx/base-files/lib/preinit/82_patch_ath10k b/target/linux/ar71xx/base-files/lib/preinit/82_patch_ath10k
index af12bd5d92..b6af921449 100644
--- a/target/linux/ar71xx/base-files/lib/preinit/82_patch_ath10k
+++ b/target/linux/ar71xx/base-files/lib/preinit/82_patch_ath10k
@@ -12,16 +12,19 @@ do_patch_ath10k_firmware() {
return
}
- local firmware_md5_orig="fcb2fbd42d73a63fbf603505c718cbde"
- local firmware_md5_current="$(md5sum $firmware_file)"
- local firmware_md5_current="${firmware_md5_current%% *}"
+ local mac_offset=276
+ local mac_length=6
+ local default_mac="00:03:07:12:34:56"
+ local current_mac="$(hexdump -v -n $mac_length -s $mac_offset -e '5/1 "%02x:" 1/1 "%02x"' $firmware_file 2>/dev/null)"
- # verify md5sum before patching
- [ "$firmware_md5_orig" != "$firmware_md5_current" ] || {
+ # check if mac address was already patched
+ [ "$default_mac" = "$current_mac" ] || {
return
}
- # some boards have bogus mac in otp, patch the default mac in the firmware
+ # some boards have bogus mac in otp (= directly in the PCIe card's EEPROM).
+ # we have to patch the default mac in the firmware because we cannot change
+ # the otp.
case $(ar71xx_board_name) in
dgl-5500-a1 | tew-823dru)
local mac
@@ -29,7 +32,7 @@ do_patch_ath10k_firmware() {
cp $firmware_file /tmp/ath10k-firmware.bin
macaddr_2bin $mac | dd of=/tmp/ath10k-firmware.bin \
- conv=notrunc bs=1 seek=276 count=6
+ conv=notrunc bs=1 seek=$mac_offset count=$mac_length
;;
esac