firmware-imx-5.4.bin revision error

[kasonYin]

Hello,

When I used yocto, I get the following Error：

ERROR: firmware-imx-1_5.4-r0 do_fetch: Fetcher failure: Unable to find revision 951c1363abe95dd75ab3e9447f640d7807240236 in branch master even from upstream
ERROR: firmware-imx-1_5.4-r0 do_fetch: Function failed: Fetcher failure for URL: 'git://github.com/NXP/imx-firmware.git;protocol=https;branch=master;destsuffix=imx-firmware;name=imx-firmware'. Unable to fetch URL from any source.
ERROR: Logfile of failure stored in: /home/ihc/fsl-release-bsp/build/tmp/work/cortexa9hf-neon-mx6qdl-poky-linux-gnueabi/firmware-imx/1_5.4-r0/temp/log.do_fetch.1048
ERROR: Task 1653 (/home/ihc/fsl-release-bsp/sources/meta-fsl-bsp-release/imx/meta-bsp/recipes-bsp/firmware-imx/firmware-imx_5.4.bb, do_fetch) failed with exit code '1'

logs:

$bitbake fsl-image-qt5
Loading cache: 100% |#######################################################################################################################| ETA: 00:00:00
Loaded 2792 entries from dependency cache.
NOTE: Resolving any missing task queue dependencies

Build Configuration:
BB_VERSION = "1.30.0"
BUILD_SYS = "x86_64-linux"
NATIVELSBSTRING = "Ubuntu-14.04"
TARGET_SYS = "arm-poky-linux-gnueabi"
MACHINE = "imx6qsabresd"
DISTRO = "fsl-imx-x11"
DISTRO_VERSION = "4.1.15-2.1.0"
TUNE_FEATURES = "arm armv7a vfp neon callconvention-hard cortexa9"
TARGET_FPU = "hard"
meta 
meta-poky = "HEAD:f5da2a5913319ad6ac2141438ba1aa17576326ab"
meta-oe 
meta-multimedia = "HEAD:247b1267bbe95719cd4877d2d3cfbaf2a2f4865a"
meta-fsl-arm = "HEAD:be78894e4682f111575470fb23e51e6ba523508d"
meta-fsl-arm-extra = "HEAD:3dfb82fc7e703eae9891b3ffda0e9393701f2396"
meta-fsl-demos = "HEAD:a165068f8a0d1cf29aabe4b4053f28be1c2aa492"
meta-bsp 
meta-sdk = "HEAD:82b5aaf55f48e468761c56876ae65fe9af081699"
meta-browser = "HEAD:77736988073a5d90fcff9d0005c8477332ede387"
meta-gnome 
meta-networking 
meta-python 
meta-filesystems = "HEAD:247b1267bbe95719cd4877d2d3cfbaf2a2f4865a"
meta-qt5 = "HEAD:ccae79be69c5268df3b47e4e14cea0591c39a531"

NOTE: Preparing RunQueue
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
WARNING: firmware-imx-1_5.4-r0 do_fetch: Failed to fetch URL git://github.com/NXP/imx-firmware.git;protocol=https;branch=master;destsuffix=imx-firmware;name=imx-firmware, attempting MIRRORS if available
ERROR: firmware-imx-1_5.4-r0 do_fetch: Fetcher failure: Unable to find revision 951c1363abe95dd75ab3e9447f640d7807240236 in branch master even from upstream
ERROR: firmware-imx-1_5.4-r0 do_fetch: Function failed: Fetcher failure for URL: 'git://github.com/NXP/imx-firmware.git;protocol=https;branch=master;destsuffix=imx-firmware;name=imx-firmware'. Unable to fetch URL from any source.
ERROR: Logfile of failure stored in: /home/ihc/fsl-release-bsp/build/tmp/work/cortexa9hf-neon-mx6qdl-poky-linux-gnueabi/firmware-imx/1_5.4-r0/temp/log.do_fetch.1048
ERROR: Task 1653 (/home/ihc/fsl-release-bsp/sources/meta-fsl-bsp-release/imx/meta-bsp/recipes-bsp/firmware-imx/firmware-imx_5.4.bb, do_fetch) failed with exit code '1'
NOTE: Tasks Summary: Attempted 3468 tasks of which 3375 didn't need to be rerun and 1 failed.
Waiting for 0 running tasks to finish:

Summary: 1 task failed:
/home/ihc/fsl-release-bsp/sources/meta-fsl-bsp-release/imx/meta-bsp/recipes-bsp/firmware-imx/firmware-imx_5.4.bb, do_fetch
Summary: There was 1 WARNING message shown.
Summary: There were 2 ERROR messages shown, returning a non-zero exit code.

firmware-imx.inc:

SUMMARY = "Freescale IMX firmware"
DESCRIPTION = "Freescale IMX firmware such as for the VPU"
SECTION = "base"
LICENSE = "Proprietary"
LIC_FILES_CHKSUM = "file://COPYING;md5=8cf95184c220e247b9917e7244124c5a"

PE = "1"

#BRCM firmware git
SRC_URI = "${FSL_MIRROR}/firmware-imx-${PV}.bin;fsl-eula=true \
git://github.com/NXP/imx-firmware.git;protocol=https;branch=master;destsuffix=imx-firmware;name=imx-firmware"

inherit fsl-eula-unpack

do_install() {
install -d ${D}${base_libdir}/firmware/imx
install -d ${D}${base_libdir}/firmware/bcm
install -d ${D}${sysconfdir}/firmware

cp -rfv firmware/* ${D}${base_libdir}/firmware/

#1BW_BCM43340
install -d ${D}${base_libdir}/firmware/bcm/1BW_BCM43340
cp -rfv git/brcm/1BW_BCM43340/*.bin ${D}${base_libdir}/firmware/bcm/1BW_BCM43340
cp -rfv git/brcm/1BW_BCM43340/*.cal ${D}${base_libdir}/firmware/bcm/1BW_BCM43340
cp -rfv git/brcm/1BW_BCM43340/*.hcd ${D}${sysconfdir}/firmware/

#1DX_BCM4343W
install -d ${D}${base_libdir}/firmware/bcm/1DX_BCM4343W
cp -rfv git/brcm/1DX_BCM4343W/*.bin ${D}${base_libdir}/firmware/bcm/1DX_BCM4343W
cp -rfv git/brcm/1DX_BCM4343W/*.cal ${D}${base_libdir}/firmware/bcm/1DX_BCM4343W
cp -rfv git/brcm/1DX_BCM4343W/*.hcd ${D}${sysconfdir}/firmware/

#SN8000_BCM43362
install -d ${D}${base_libdir}/firmware/bcm/SN8000_BCM43362
cp -rfv git/brcm/SN8000_BCM43362/*.bin ${D}${base_libdir}/firmware/bcm/SN8000_BCM43362
cp -rfv git/brcm/SN8000_BCM43362/*.cal ${D}${base_libdir}/firmware/bcm/SN8000_BCM43362
cp -rfv git/brcm/1DX_BCM4343W/*.hcd ${D}${sysconfdir}/firmware/

#ZP_BCM4339
install -d ${D}${base_libdir}/firmware/bcm/ZP_BCM4339
cp -rfv git/brcm/ZP_BCM4339/*.bin ${D}${base_libdir}/firmware/bcm/ZP_BCM4339
cp -rfv git/brcm/ZP_BCM4339/*.cal ${D}${base_libdir}/firmware/bcm/ZP_BCM4339
cp -rfv git/brcm/ZP_BCM4339/*.hcd ${D}${sysconfdir}/firmware/

mv ${D}${base_libdir}/firmware/epdc/ ${D}${base_libdir}/firmware/imx/epdc/
mv ${D}${base_libdir}/firmware/imx/epdc/epdc_ED060XH2C1.fw.nonrestricted ${D}${base_libdir}/firmware/imx/epdc/epdc_ED060XH2C1.fw

find ${D}${base_libdir}/firmware -type f -exec chmod 644 '{}' ';'
find ${D}${base_libdir}/firmware -type f -exec chown root:root '{}' ';'

# Remove files not going to be installed
find ${D}${base_libdir}/firmware/ -name '*.mk' -exec rm '{}' ';'
}

python populate_packages_prepend() {
vpudir = bb.data.expand('${base_libdir}/firmware/vpu', d)
do_split_packages(d, vpudir, '^vpu_fw_([^_]*).*\.bin',
output_pattern='firmware-imx-vpu-%s',
description='Freescale IMX Firmware %s',
extra_depends='',
prepend=True)

sdmadir = bb.data.expand('${base_libdir}/firmware/sdma', d)
do_split_packages(d, sdmadir, '^sdma-([^-]*).*\.bin',
output_pattern='firmware-imx-sdma-%s',
description='Freescale IMX Firmware %s',
extra_depends='',
prepend=True)
}

ALLOW_EMPTY_${PN} = "1"

PACKAGES_DYNAMIC = "${PN}-vpu-* ${PN}-sdma-*"

PACKAGES =+ "${PN}-epdc ${PN}-brcm"

FILES_${PN}-epdc = "${base_libdir}/firmware/imx/epdc/"
FILES_${PN}-brcm = "${base_libdir}/firmware/bcm/*/*.bin ${base_libdir}/firmware/bcm/*/*.cal ${sysconfdir}/firmware/"

PACKAGE_ARCH = "${MACHINE_SOCARCH}"

firmware-imx_5.4.bb :

# Copyright (C) 2012-2016 Freescale Semiconductor

require firmware-imx.inc
LIC_FILES_CHKSUM = "file://COPYING;md5=8cf95184c220e247b9917e7244124c5a"

SRC_URI[md5sum] = "dae846ca2fc4504067f725f501491adf"
SRC_URI[sha256sum] = "c5bd4bff48cce9715a5d6d2c190ff3cd2262c7196f7facb9b0eda231c92cc223"

#BRCM firmware git
SRCREV = "951c1363abe95dd75ab3e9447f640d7807240236"

COMPATIBLE_MACHINE = "(mx5|mx6|mx6ul|mx6sll|mx7)"

I tried to download the repository and found the revision

$ git clone git://github.com/NXP/imx-firmware
Being cloned to 'imx-firmware'...
remote: Enumerating objects: 455, done.
remote: Counting objects: 100% (274/274), done.
remote: Compressing objects: 100% (142/142), done.
remote: Total 455 (delta 180), reused 216 (delta 130), pack-reused 181
Receiving objects in: 100% (455/455), 11.05 MiB | 4.12 MiB/s, done.
Processing delta in: 100% (238/238), done.
Check the connection... Done.
$ cd imx-firmware/
$ git show 951c1363abe95dd75ab3e9447f640d7807240236
fatal: bad object 951c1363abe95dd75ab3e9447f640d7807240236

What obvious thing am I missing? 

Thanks!