Dear all
I flash openwrt ap147 to my access point.
Now it can not boot. I connect usb ttl to check boot log it show below.
I try to access uboot to reflash device factory firmware.
Now I can not access the device. please advice me.
[ 0.680000] console [ttyS0] enabled, bootconsole disabled
[ 0.690000] m25p80 spi0.0: found w25q128, expected m25p80
[ 0.700000] m25p80 spi0.0: w25q128 (16384 Kbytes)
[ 0.700000] 6 cmdlinepart partitions found on MTD device spi0.0
[ 0.710000] Creating 6 MTD partitions on "spi0.0":
[ 0.710000] 0x000000000000-0x000000040000 : "u-boot"
[ 0.720000] 0x000000040000-0x000000050000 : "u-boot-env"
[ 0.720000] 0x000000050000-0x000000e80000 : "rootfs"
[ 0.730000] mtd: partition "rootfs" set to be root filesystem
[ 0.740000] mtd: partition "rootfs_data" created automatically, ofs=240000, len=C40000
[ 0.750000] 0x000000240000-0x000000e80000 : "rootfs_data"
[ 0.750000] 0x000000e80000-0x000000ff0000 : "kernel"
[ 0.760000] 0x000000ff0000-0x000001000000 : "art"
[ 0.770000] 0x000000050000-0x000000ff0000 : "firmware"
[ 0.790000] ag71xx_mdio: probed
[ 0.930000] ag71xx_mdio: probed
[ 0.930000] eth0: Atheros AG71xx at 0xb9000000, irq 4
[ 1.490000] ag71xx ag71xx.0: eth0: connected to PHY at ag71xx-mdio.1:04 [uid=004dd042, driver=Generic PHY]
[ 1.500000] eth1: Atheros AG71xx at 0xba000000, irq 5
[ 2.060000] eth1: Found an AR934X built-in switch
[ 3.090000] GACT probability on
[ 3.090000] Mirror/redirect action on
[ 3.090000] netem: version 1.3
[ 3.100000] u32 classifier
[ 3.100000] Performance counters on
[ 3.100000] input device check on
[ 3.110000] Actions configured
[ 3.110000] Netfilter messages via NETLINK v0.30.
[ 3.120000] nf_conntrack version 0.5.0 (1962 buckets, 7848 max)
[ 3.120000] ctnetlink v0.93: registering with nfnetlink.
[ 3.130000] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.140000] TCP cubic registered
[ 3.140000] NET: Registered protocol family 17
[ 3.140000] Bridge firewalling registered
[ 3.150000] Ebtables v2.0 registered
[ 3.150000] 8021q: 802.1Q VLAN Support v1.8
[ 3.160000] ### of_selftest(): No testcase data in device tree; not running tests
[ 3.160000] SQUASHFS error: Failed to initialise xz decompressor
[ 3.170000] VFS: Cannot open root device "(null)" or unknown-block(31,2)
[ 3.180000] Please append a correct "root=" boot option; here are the available partitions:
[ 3.190000] 1f00 256 mtdblock0 (driver?)
[ 3.190000] 1f01 64 mtdblock1 (driver?)
[ 3.200000] 1f02 14528 mtdblock2 (driver?)
[ 3.200000] 1f03 12544 mtdblock3 (driver?)
[ 3.210000] 1f04 1472 mtdblock4 (driver?)
[ 3.210000] 1f05 64 mtdblock5 (driver?)
[ 3.220000] 1f06 16000 mtdblock6 (driver?)
[ 3.220000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)