TP-Link TL-WR703N 路由器的 8MB 固件程式過程顯示

TP-Link TL-WR703N 路由器的 8MB 固件程式過程顯示：

刷好了 Chaos Calmer 15.05 RC3（20150816 SVN：r46572)的 8MB 固件，便可以啓動 TP-Link TL-WR703N 路由器，透過 TL-WR703N 路由器的 TTL 輸出，可以在 PC 電腦用 Windows Terminals 或 Hyper Terminals 顯示路由器的 Firmware U-Boot過程，Firmware 程式過程包括 U-Boot 及 Linux 核心系統（Kernel ），基本上 U-Boot 是像電腦 BIOS （Basic Input/Output System）或 MCU 的 Bootloader，所以當了解 U-Boot 的過程，再看程式碼便會容易理解。

TP-Link TL-WR703N 路由器的 8MB 固件程式過程

U-Boot 的啟動過程大致做如下工作：
1… 初始化 CPU
2… 初始化記憶體 (DDR RAM)
3… 記憶體劃分、分配棧、資料、配置參數、以及 U-Boot 代碼在記憶體中的位置。
4… 初始化串口 (Serial) 、網口、時鐘
5… 對 U-Boot 代碼作 relocate、malloc6… 進入命令行或者直接啟動 Linux kernel

8MB 固件程式過程顯示：

U-Boot 1.1.4 (Dec 4 2012 - 11:19:40)

AP121 (ar9330) U-boot

DRAM: 32 MB

led turning on for 1s...

id read 0x100000ff

flash size 4194304, sector count = 64

Flash: 4 MB

Using default environment

In: serial

Out: serial

Err: serial

Net: ag7240_enet_initialize...

No valid address in Flash. Using fixed address

: cfg1 0x5 cfg2 0x7114

eth0: 00:03:7f:09:0b:ad

ag7240_phy_setup

eth0 up

: cfg1 0xf cfg2 0x7214

eth1: 00:03:7f:09:0b:ad

athrs26_reg_init_lan

ATHRS26: resetting s26

ATHRS26: s26 reset done

ag7240_phy_setup

eth1 up

eth0, eth1

Autobooting in 1 seconds

## Booting image at 9f020000 ...

Uncompressing Kernel Image ... OK

Starting kernel ...

[ 0.000000] Linux version 3.10.4 (alpha@debian) (gcc version 4.6.4 (OpenWrt/Linaro GCC 4.6-2012.12 r37742) ) #1 Sat Aug 10 07:17:49 EDT 2013

[ 0.000000] bootconsole [early0] enabled

[ 0.000000] CPU revision is: 00019374 (MIPS 24Kc)

[ 0.000000] SoC: Atheros AR9330 rev 1

[ 0.000000] Clocks: CPU:400.000MHz, DDR:400.000MHz, AHB:200.000MHz, Ref:25.000MHz

[ 0.000000] Determined physical RAM map:

[ 0.000000] memory: 02000000 @ 00000000 (usable)

[ 0.000000] Initrd not found or empty - disabling initrd

[ 0.000000] Zone ranges:

[ 0.000000] Normal [mem 0x00000000-0x01ffffff]

[ 0.000000] Movable zone start for each node

[ 0.000000] Early memory node ranges

[ 0.000000] node 0: [mem 0x00000000-0x01ffffff]

[ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.

[ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes

[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128

[ 0.000000] Kernel command line: board=TL-WR703N console=ttyATH0,115200 rootfstype=squashfs,jffs2 noinitrd

[ 0.000000] PID hash table entries: 128 (order: -3, 512 bytes)

[ 0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)

[ 0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)

[ 0.000000] Writing ErrCtl register=00000000

[ 0.000000] Readback ErrCtl register=00000000

[ 0.000000] Memory: 28848k/32768k available (2197k kernel code, 3920k reserved, 587k data, 220k init, 0k highmem)

[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1

[ 0.000000] NR_IRQS:51

[ 0.000000] Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104)

[ 0.080000] pid_max: default: 32768 minimum: 301

[ 0.080000] Mount-cache hash table entries: 512

[ 0.090000] NET: Registered protocol family 16

[ 0.100000] MIPS: machine is TP-LINK TL-WR703N v1

[ 0.350000] bio: create slab at 0

[ 0.360000] Switching to clocksource MIPS

[ 0.360000] NET: Registered protocol family 2

[ 0.370000] TCP established hash table entries: 512 (order: 0, 4096 bytes)

[ 0.370000] TCP bind hash table entries: 512 (order: -1, 2048 bytes)

[ 0.370000] TCP: Hash tables configured (established 512 bind 512)

[ 0.380000] TCP: reno registered

[ 0.380000] UDP hash table entries: 256 (order: 0, 4096 bytes)

[ 0.390000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

[ 0.400000] NET: Registered protocol family 1

[ 0.420000] squashfs: version 4.0 (2009/01/31) Phillip Lougher

[ 0.430000] msgmni has been set to 56

[ 0.440000] io scheduler noop registered

[ 0.440000] io scheduler deadline registered (default)

[ 0.440000] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled

[ 0.450000] ar933x-uart: ttyATH0 at MMIO 0x18020000 (irq = 11) is a AR933X UART

[ 0.460000] console [ttyATH0] enabled, bootconsole disabled

[ 0.470000] ath79-spi ath79-spi: master is unqueued, this is deprecated

[ 0.480000] m25p80 spi0.0: found en25q64, expected m25p80

[ 0.480000] m25p80 spi0.0: en25q64 (8192 Kbytes)

[ 0.490000] 5 tp-link partitions found on MTD device spi0.0

[ 0.490000] Creating 5 MTD partitions on "spi0.0":

[ 0.500000] 0x000000000000-0x000000020000 : "u-boot"

[ 0.500000] 0x000000020000-0x000000118b2c : "kernel"

[ 0.510000] mtd: partition "kernel" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only

[ 0.520000] 0x000000118b2c-0x0000007f0000 : "rootfs"

[ 0.520000] mtd: partition "rootfs" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only

[ 0.540000] mtd: partition "rootfs" set to be root filesystem

[ 0.540000] mtd: partition "rootfs_data" created automatically, ofs=0x3d0000, len=0x420000

[ 0.550000] 0x0000003d0000-0x0000007f0000 : "rootfs_data"

[ 0.560000] 0x0000007f0000-0x000000800000 : "art"

[ 0.560000] 0x000000020000-0x0000007f0000 : "firmware"

[ 0.580000] libphy: ag71xx_mdio: probed

[ 0.590000] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:MII

[ 1.140000] ag71xx ag71xx.0 eth0: connected to PHY at ag71xx-mdio.1:04 [uid=004dd041, driver=Generic PHY]

[ 1.150000] TCP: cubic registered

[ 1.150000] NET: Registered protocol family 17

[ 1.160000] 8021q: 802.1Q VLAN Support v1.8

[ 1.170000] VFS: Mounted root (squashfs filesystem) readonly on device 31:2.

[ 1.180000] Freeing unused kernel memory: 220K (80319000 - 80350000)

procd: Console is alive

procd: - watchdog -

[ 3.480000] SCSI subsystem initialized

[ 3.620000] usbcore: registered new interface driver usbfs

[ 3.620000] usbcore: registered new interface driver hub

[ 3.630000] usbcore: registered new device driver usb

[ 4.320000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

[ 4.320000] ehci-platform: EHCI generic platform driver

[ 4.330000] ehci-platform ehci-platform: EHCI Host Controller

[ 4.330000] ehci-platform ehci-platform: new USB bus registered, assigned bus number 1

[ 4.340000] ehci-platform ehci-platform: irq 3, io mem 0x1b000000

[ 4.370000] ehci-platform ehci-platform: USB 2.0 started, EHCI 1.00

[ 4.370000] hub 1-0:1.0: USB hub found

[ 4.370000] hub 1-0:1.0: 1 port detected

[ 4.580000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

[ 4.690000] usbcore: registered new interface driver usb-storage

procd: - preinit -

Press the [f] key and hit [enter] to enter failsafe mode

[ 7.210000] eth0: link up (100Mbps/Full duplex)

mount_root: jffs2 is not ready - marker found

[ 8.620000] eth0: link down

procd: - early -

procd: - watchdog -

procd: - init -

Please press Enter to activate this console.

[ 11.490000] Loading modules backported from Linux version master-2013-06-27-0-gdcfa6d5

[ 11.500000] Backport generated by backports.git backports-20130617-4-ge3220f5

[ 11.530000] cfg80211: Calling CRDA to update world regulatory domain

[ 11.530000] cfg80211: World regulatory domain updated:

[ 11.540000] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

[ 11.540000] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 11.550000] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[ 11.560000] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[ 11.570000] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 11.570000] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 11.860000] NET: Registered protocol family 10

[ 12.670000] ieee80211 phy0: Atheros AR9330 Rev:1 mem=0xb8100000, irq=2

[ 12.680000] cfg80211: Calling CRDA for country: US

[ 12.680000] cfg80211: Regulatory domain changed to country: US

[ 12.690000] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

[ 12.690000] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)

[ 12.700000] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)

[ 12.710000] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 12.720000] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 12.730000] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 12.730000] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)

[ 13.400000] PPP generic driver version 2.4.2

[ 13.600000] xt_time: kernel timezone is -0000

[ 13.800000] NET: Registered protocol family 24

[ 13.920000] nf_conntrack version 0.5.0 (454 buckets, 1816 max)

[ 14.940000] Linux video capture interface: v2.00

[ 14.970000] usbcore: registered new interface driver uvcvideo

[ 14.980000] USB Video Class driver (1.1.1)

[ 19.990000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready

[ 19.990000] device eth0 entered promiscuous mode

[ 20.010000] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready

[ 20.300000] eth0: link up (100Mbps/Full duplex)

[ 20.300000] br-lan: port 1(eth0) entered forwarding state

[ 20.310000] br-lan: port 1(eth0) entered forwarding state

[ 20.310000] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

[ 20.320000] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready

[ 22.310000] br-lan: port 1(eth0) entered forwarding state

[ 25.370000] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

[ 25.390000] device wlan0 entered promiscuous mode

[ 25.420000] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

[ 25.430000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

[ 25.440000] br-lan: port 2(wlan0) entered forwarding state

[ 27.440000] br-lan: port 2(wlan0) entered forwarding state

[ 38.420000] jffs2_scan_eraseblock(): End of filesystem marker found at 0x0

[ 38.440000] jffs2_build_filesystem(): unlocking the mtd device... done.

[ 38.440000] jffs2_build_filesystem(): erasing all blocks after the end marker... done.

[ 53.450000] jffs2: notice: (1055) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.

procd: - init complete -

參考網址：
※ Das U-Boot

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