RTL8186 bootlog on this commit: https://github.com/yashac3/linux-rtl8186/commit/340ef7b7db2bf4ca7ef105f7cba18abe78daa2c8

bootlog.txt

UART1 output test ok
Uart init
mfid=000000c2 devid=00002249
Found 1 x 2M flash memory

---RealTek(RTL8186)at 2005.06.06-11:22+0800 version 1.3c [32bit](180MHz)
Jump to image start=0x80800000...
zimage at:     80802CB0 80929E7C
Uncompressing Linux at load address 80010000
Now, booting the kernel...
[    0.000000] Linux version 4.18.0-00011-g340ef7b7db2b (yasha@laptop) (gcc version 8.2.0 (Buildroot 2018.11-git-00556-g361d63f725)) #1 Sun Sep 30 16:03:07 IDT 2018
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 0000c601 (Lexra LX5280)
[    0.000000] MIPS: machine is Edimax BR-6204Wg
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 01000000 @ 00000000 (usable)
[    0.000000] Primary instruction cache 8kB, linesize 16 bytes.
[    0.000000] Primary data cache 8kB, linesize 16 bytes.
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000000ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000000ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000000ffffff]
[    0.000000] random: get_random_bytes called from start_kernel+0x88/0x460 with crng_init=0
[    0.000000] Built 1 zonelists, mobility grouping off.  Total pages: 4064
[    0.000000] Kernel command line: console=ttyS0,38400n8 root=/dev/mtdblock3 rootfstype=squashfs ro
[    0.000000] Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000000] Memory: 11132K/16384K available (3027K kernel code, 130K rwdata, 420K rodata, 1216K init, 192K bss, 5252K reserved, 0K cma-reserved)
[    0.000000] NR_IRQS: 128
[    0.000124] sched_clock: 32 bits at 22MHz, resolution 45ns, wraps every 97612893161ns
[    0.025429] clocksource: rtl8186-clksrc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 86875474859 ns
[    0.059226] Calibrating delay loop... 175.51 BogoMIPS (lpj=877568)
[    0.157702] pid_max: default: 32768 minimum: 301
[    0.175567] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.197237] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.244372] devtmpfs: initialized
[    0.273152] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.305163] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.329128] NET: Registered protocol family 16
[    0.447920] clocksource: Switched to clocksource rtl8186-clksrc
[    0.485834] NET: Registered protocol family 2
[    0.508413] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[    0.533627] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.556531] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.577395] TCP: Hash tables configured (established 1024 bind 1024)
[    0.599737] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.619022] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.641210] NET: Registered protocol family 1
[    0.665204] workingset: timestamp_bits=30 max_order=12 bucket_order=0
[    0.687574] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.707012] io scheduler noop registered (default)
[    0.726447] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.762946] console [ttyS0] disabled
[    0.775052] 1d0100c3.serial: ttyS0 at MMIO 0x1d0100c3 (irq = 3, base_baud = 11250000) is a 16550A
[    0.804109] console [ttyS0] enabled
[    0.804109] console [ttyS0] enabled
[    0.827383] bootconsole [early0] disabled
[    0.827383] bootconsole [early0] disabled
[    0.862018] 1e000000.flash: Found 1 x16 devices at 0x0 in 16-bit bank. Manufacturer ID 0x0000c2 Chip ID 0x002249
[    0.896331] Amd/Fujitsu Extended Query Table at 0x0040
[    0.913884]   Amd/Fujitsu Extended Query version 1.0.
[    0.931147] number of CFI chips: 1
[    0.943125] 4 fixed-partitions partitions found on MTD device 1e000000.flash
[    0.966984] Creating 4 MTD partitions on "1e000000.flash":
[    0.985734] 0x000000000000-0x000000008000 : "bootloader+defaults"
[    1.019690] 0x000000008000-0x000000010000 : "settings"
[    1.049483] 0x000000010000-0x000000170000 : "kernel"
[    1.078885] 0x000000170000-0x000000200000 : "rootfs"
[    1.116648] NET: Registered protocol family 17
[    1.159937] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
[    1.216561] Freeing unused kernel memory: 1216K
[    1.232054] This architecture does not have kernel memory protection.
[    2.948167] random: fast init done