[SRU][linux-firmware][I][PULL] Update firmware for MT7921 WiFi/Bluetooth

You-Sheng Yang vicamo.yang at canonical.com
Wed Oct 20 07:03:59 UTC 2021

BugLink: https://bugs.launchpad.net/bugs/1947829


Sometimes MT7921 may not be probed due to an endless mcu reset:

  [ 5.789548] mt7921 mcu reset 0
  [ 5.790625] mt7921 rx type 0x7
  [ 5.790625] mt7921 eid 0x1 ext_eid 0x0
  [ 5.790626] mt76_rx_event eid 0x1 ext_eid 0x0


WiFi and Bluetooth firmware updates from mainline:
* e5a80ef8 linux-firmware: update frimware for mediatek bluetooth chip (MT7921)
* d34196f5 linux-firmware: update firmware for MT7921 WiFi device

[Test Case]

This should fix the mcu reset and wireless/bluetooh devices should be
probed successfully.

[Where problems could occur]

While there is explicit FW API for kernel version compatibility checking,
this might introduce some hidden glitches that we don't know yet.

[Other Info]

MT7921 is supported since Impish 5.13 kernel, and Impish already has the
latest Bluetooth firmware, so only the WiFi one is proposed. For oem-5.13
and oem-5.14 in Focal, both firmware updates for Bluetooth and WiFi are

The following changes since commit dbd025299a27674401c31c9f055abc3044807627:

  UBUNTU: [Packaging] rebase-upstream: Add a bug reference if env variable LP is set (2021-09-30 08:12:32 +0200)

are available in the Git repository at:

  https://git.launchpad.net/~vicamo/ubuntu/+source/linux-firmware bug-1947829/mt7921-mcu-reset/impish-pull

for you to fetch changes up to 721e33dc2e615e810a3b4e0de0cb13e6083560f7:

  linux-firmware: update firmware for MT7921 WiFi device (2021-10-20 14:47:05 +0800)

Deren Wu (1):
      linux-firmware: update firmware for MT7921 WiFi device

 WHENCE                                     |   4 ++--
 mediatek/WIFI_MT7961_patch_mcu_1_2_hdr.bin | Bin 92192 -> 92192 bytes
 mediatek/WIFI_RAM_CODE_MT7961_1.bin        | Bin 685320 -> 689864 bytes
 3 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/WHENCE b/WHENCE
index e957390b..b3e53620 100644
--- a/WHENCE
+++ b/WHENCE
@@ -5150,9 +5150,9 @@ Licence: Redistributable. See LICENCE.mediatek for details.
 Driver: mt7921 - MediaTek MT7921 Wireless MACs
 File: mediatek/WIFI_MT7961_patch_mcu_1_2_hdr.bin
-Version: 20210612122717a
+Version: 20211014150838a
 File: mediatek/WIFI_RAM_CODE_MT7961_1.bin
-Version: 20210612122753
+Version: 20211014150922
 Licence: Redistributable. See LICENCE.mediatek for details.
diff --git a/mediatek/WIFI_MT7961_patch_mcu_1_2_hdr.bin b/mediatek/WIFI_MT7961_patch_mcu_1_2_hdr.bin
index 15c68961..d63e48da 100644
Binary files a/mediatek/WIFI_MT7961_patch_mcu_1_2_hdr.bin and b/mediatek/WIFI_MT7961_patch_mcu_1_2_hdr.bin differ
diff --git a/mediatek/WIFI_RAM_CODE_MT7961_1.bin b/mediatek/WIFI_RAM_CODE_MT7961_1.bin
index 9de3d1d4..2a0599f5 100644
Binary files a/mediatek/WIFI_RAM_CODE_MT7961_1.bin and b/mediatek/WIFI_RAM_CODE_MT7961_1.bin differ

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