TQ335X开发板内核3.17.2移植和busybox移植
硬件平台：TQ335X_BOARD_V2.1
软件环境：VMWARE10+UBUNTU14.04
KERNEL：3.17.2
Busybox：1.20
参考
http://blog.csdn.net/girlkoo/article/details/41223733
http://blog.csdn.net/girlkoo/article/details/8719828
一、内核移植
老式的u-boot使用ATAGS的方式启动linux内核，本文使用新式的dtb方式启动内核。
我使用的内核是linux-3.17.2版本，下面开始编译内核。
（1） 解压内核
- tar jxf linux-3.17.2.tar.bz2
- make ARCH=arm omap2plus_defconfig
（3）编译内核：
- make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
（4）编译dtb：
- make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- am335x-evm.dtb
将SD格式化为FAT系统，将MLO、u-boot.img拷贝到根目录下。
在根目录下创建boot目录，将编译好的zImage和am335x-evm.dtb拷贝到该目录下。
二、busybox制作ramdisk文件系统
（1）创建根文件系统目录结构，可以使用如下脚本：
- #!/bin/sh
- echo "------Create rootfs directons start...--------"
- mkdir rootfs
- cd rootfs
- echo "--------Create root,dev....----------"
- mkdir root dev etc boot tmp var sys proc lib mnt home usr
- mkdir etc/init.d etc/rc.d etc/sysconfig
- mkdir usr/sbin usr/bin usr/lib usr/modules
- echo "make node in dev/console dev/null"
- sudo mknod -m 600 dev/console c 5 1
- sudo mknod -m 600 dev/null c 1 3
- mkdir mnt/etc mnt/jffs2 mnt/yaffs mnt/data mnt/temp
- mkdir var/lib var/lock var/run var/tmp
- chmod 1777 tmp
- chmod 1777 var/tmp
- echo "-------make direction done---------"
在这里我将脚本命名为mkrootfs.sh，接下来给脚本加可执行权限（即chmod a+x mkrootfs）并运行脚本。我的脚本是在~/work目录下运行的，所以我的根文件系统的根目录为~/work/rootfs，后面均以该目录为例阐述。
（2）编译Busybox
到Busybox下载最新版的Busybox源码，我是用的是1.20.0版本，下载完后解压并进入busybox目录，首先是配置busybox
- make menuconfig
配置菜单跟配置内核时的差不多，依次进入Busybox Settings => Build Options => Cross Compiler prefix (NEW)，设置为编译器的前缀，我的是arm-linux-。网上有些朋友还推荐选择Busybox Settings => Build Options => Build BusyBox as a static binary (no shared libs)，但是如果我们正确拷贝编译器了运行库的话，不设置也可以。现在可以编译Busybox了，执行
- make
编译过程很顺利，我这里没有遇到任何错误，接下来将编译好的Busybox安装到~/work/rootfs就可以了，执行
- make CONFIG_PREFIX=~/work/rootfs install
(3)构建etc目录
在etc目录下创建Inittab文件，内容如下
- ::sysinit:/etc/init.d/rcS
- console::askfirst:-/bin/sh
- ::restart:/sbin/init
- ::ctrlaltdel:/sbin/reboot
- ::shutdown:/bin/umount -a -r
- ::shutdown:/sbin/swapoff -a
在etc/init.d/目录下创建rcS文件，内容如下
- echo "----------mount all.........."
- mount -a
- echo "----------Starting mdev......"
- echo /sbin/mdev > /proc/sys/kernel/hotplug
- mdev -s
- /bin/hostname -F /etc/sysconfig/HOSTNAME
为inittab和rcS文件添加可执行权限
- chmod a+x inittab
- chmod a+x rcS
在etc目录下创建fstab文件，内容如下
- #evice mount-point type option dump fsck order
- proc /proc proc defaults 0 0
- none /tmp ramfs defaults 0 0
- mdev /dev ramfs defaults 0 0
- sysfs /sys sysfs defaults 0 0
在etc目录下创建profile文件，内容如下
- PATH=/bin:/sbin:/usr/bin:/usr/sbin
- export PATH
- #set hostname
- HOSTNAME='/bin/hostname'
- export HOSTNAME
- # Set PS1
- PS1='[\u@\h \W]\$'
- export PS1
(4) 设置HOSTNAME文件
在etc/sysconfig目录下创建HOSTNAME文件，在文件中写入主机名，我这里写的是tq335x。
(5)制作ramdisk
制作ramdisk的方式很多，最方便的是使用指令genext2fs。ubuntu操作系统上可以通过apt-get工具直接安装genext2fs工具：
- sudo apt-get install genext2fs
- genext2fs -b 4096 -d rootfs/ ramdisk
4096可以改成2^N，建议不要太大
然后使用gzip命令压缩ramdisk：
- gzip -9 -f ramdisk
由于u-boot启动内核使用的ramdisk需要有u-boot的image头，故需要使用编译u-boot时生成的工具mkimage将ramdisk.gz制作为ramdisk.img。其中，工具mkimage位于u-boot的tools目录下，制作ramdisk.img的指令如下：
- u-boot-2015.07/tools/mkimage -A arm -O linux -T ramdisk -C none -a 0x88080000 -n "ramdisk" -d ramdisk.gz ramdisk.img
这样，就完成了u-boot可以使用的ramdisk制作，然后将ramdisk.img拷贝到SD卡的boot目录下即可。
（6）挂载ramdisk
老式的ATAGS方式启动内核时使用ATAG传递bootargs给内核，由于本文使用的dtb方式启动内核，故采取dtb的chosen方式传递bootargs给内核。
Step1: 修改内核配置
- make ARCH=arm menuconfig
- Boot options --->
- [ ] Use appended device tree blob to zImage (EXPERIMENTAL)
按ESC保存配置后退出menuconfig画面，重新编译内核：
- make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j8
切换到内核目录arch/arm/boot/dts/，拷贝am335x-evm.dts为tq335x.dts：
- cp am335x-evm.dts tq335x.dts
- memory {
- device_type = "memory";
- reg = <0x80000000 0x20000000>; /* 512 MB */
- };
- chosen {
- bootargs = "console=ttyO0,115200n8 root=/dev/ram0";
- };
- ...
接下来重新编译dtb：
- make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- tq335x.dtb
Step3:使用新制作的ramdisk.img和tq335x.dtb启动内核
将SD插到开发板上，给开发板上电（开发板切换到SD卡启动模式），可以通过按任意键打断内核启动进入u-boot命令模式（由于之前没有配置u-boot的bootcmd环境变量，而默认的u-boot环境无法启动内核，故，开发板上电后不按键的话也会进入u-boot的命令行模式）。
首先是加载内核到DRAM：
- load mmc 0 ${loadaddr} /boot/zImage
然后是加载dtb到DRAM：
- load mmc 0 ${fdtaddr} /boot/tq335x.dtb
接下来加载ramdisk到DRAM：
- load mmc 0 ${rdaddr} /boot/ramdisk.img
最后就是将ramdisk和dtb的加载地址作为参数启动内核：
- bootz ${loadaddr} ${rdaddr} ${fdtaddr}
启动Log如下：
三、启动
（1）u-boot命令行启动Linux内核
- setenv bootargs 'console=ttyO0,115200n8 root=/dev/ram0'
- load mmc 0 0x82000000 /boot/zImage
- load mmc 0 0x88000000 /boot/tq335x.dtb
- load mmc 0 0x88080000 /boot/ramdisk.img
- bootz 0x82000000 0x88080000 0x88000000
U-Boot 2015.07 (May 31 2016 - 20:18:36 +0800)
Watchdog enabled
I2C: ready
DRAM: 512 MiB
NAND: 1024 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Net: cpsw, usb_ether
Hit any key to stop autoboot: 0
WARNING: Could not determine device tree to use
Card did not respond to voltage select!
SD/MMC found on device 1
Card did not respond to voltage select!
** Bad device mmc 1 **
Card did not respond to voltage select!
** Bad device mmc 1 **
Card did not respond to voltage select!
** Bad device mmc 1 **
Card did not respond to voltage select!
SD/MMC found on device 1
Card did not respond to voltage select!
** Bad device mmc 1 **
Card did not respond to voltage select!
** Bad device mmc 1 **
Card did not respond to voltage select!
** Bad device mmc 1 **
Booting from nand ...
NAND read: incorrect device type in u-boot-spl-os
NAND read: incorrect device type in kernel
Bad Linux ARM zImage magic!
U-Boot# setenv bootargs 'console=ttyO0,115200n8 root=/dev/ram0';
U-Boot# load mmc 0 0x82000000 /boot/zImage;
4370192 bytes read in 242 ms (17.2 MiB/s)
U-Boot# load mmc 0 0x88000000 /boot/tq335x.dtb;
34781 bytes read in 9 ms (3.7 MiB/s)
U-Boot# load mmc 0 0x88080000 /boot/ramdisk.img;
967070 bytes read in 59 ms (15.6 MiB/s)
U-Boot# bootz 0x82000000 0x88080000 0x88000000
Kernel image @ 0x82000000 [ 0x000000 - 0x42af10 ]
## Loading init Ramdisk from Legacy Image at 88080000 ...
Image Name: ramdisk
Created: 2016-05-31 8:15:53 UTC
Image Type: ARM Linux RAMDisk Image (uncompressed)
Data Size: 967006 Bytes = 944.3 KiB
Load Address: 88080000
Entry Point: 88080000
Verifying Checksum ... OK
## Flattened Device Tree blob at 88000000
Booting using the fdt blob at 0x88000000
Loading Ramdisk to 8ff13000, end 8ffff15e ... OK
Loading Device Tree to 8ff07000, end 8ff127dc ... OK
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 3.17.2 (stephen@ubuntu) (gcc version 4.9.3 20150413 (prerelease) (Linaro GCC 4.9-2015.05) ) #3 SMP Tue May 31 14:47:26 CST 2016
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instructio n cache
[ 0.000000] Machine model: TI AM335x EVM
[ 0.000000] cma: Reserved 16 MiB at 9e800000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] HighMem zone: 1048574 pages exceeds freesize 0
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES2.1 (sgx neon )
[ 0.000000] PERCPU: Embedded 9 pages/cpu @dfa9a000 s14336 r8192 d14336 u36864
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pag es: 129792
[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/ram0
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 483808K/523264K available (5697K kernel code, 646K rwdata , 2208K rodata, 406K init, 8210K bss, 39456K reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
[ 0.000000] vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc07c096c (7907 kB)
[ 0.000000] .init : 0xc07c1000 - 0xc0826800 ( 406 kB)
[ 0.000000] .data : 0xc0828000 - 0xc08c9b08 ( 647 kB)
[ 0.000000] .bss : 0xc08c9b08 - 0xc10ce690 (8211 kB)
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrup ts
[ 0.000000] Total of 128 interrupts on 1 active controller
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000014] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 17895 6969942ns
[ 0.000059] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000758] Console: colour dummy device 80x30
[ 0.000807] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.000816] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.000823] ... MAX_LOCK_DEPTH: 48
[ 0.000830] ... MAX_LOCKDEP_KEYS: 8191
[ 0.000837] ... CLASSHASH_SIZE: 4096
[ 0.000844] ... MAX_LOCKDEP_ENTRIES: 32768
[ 0.000851] ... MAX_LOCKDEP_CHAINS: 65536
[ 0.000859] ... CHAINHASH_SIZE: 32768
[ 0.000866] memory used by lock dependency info: 5167 kB
[ 0.000873] per task-struct memory footprint: 1152 bytes
[ 0.000915] Calibrating delay loop... 996.14 BogoMIPS (lpj=4980736)
[ 0.079099] pid_max: default: 32768 minimum: 301
[ 0.079476] Security Framework initialized
[ 0.079598] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.079612] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.081757] CPU: Testing write buffer coherency: ok
[ 0.082896] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[ 0.083017] Setting up static identity map for 0x8056ef90 - 0x8056f000
[ 0.086163] Brought up 1 CPUs
[ 0.086183] SMP: Total of 1 processors activated.
[ 0.086194] CPU: All CPU(s) started in SVC mode.
[ 0.088748] devtmpfs: initialized
[ 0.097390] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.133743] omap_hwmod: tptc0 using broken dt data from edma
[ 0.134103] omap_hwmod: tptc1 using broken dt data from edma
[ 0.134444] omap_hwmod: tptc2 using broken dt data from edma
[ 0.142408] omap_hwmod: debugss: _wait_target_disable failed
[ 0.200207] pinctrl core: initialized pinctrl subsystem
[ 0.202672] regulator-dummy: no parameters
[ 0.232113] NET: Registered protocol family 16
[ 0.240467] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.242559] cpuidle: using governor ladder
[ 0.242583] cpuidle: using governor menu
[ 0.254378] OMAP GPIO hardware version 0.1
[ 0.269479] omap-gpmc 50000000.gpmc: could not find pctldev for node /pinmux@ 44e10800/nandflash_pins_s0, deferring probe
[ 0.269521] platform 50000000.gpmc: Driver omap-gpmc requests probe deferral
[ 0.274008] No ATAGs?
[ 0.274038] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.316701] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
[ 0.318009] vbat: 5000 mV
[ 0.318759] lis3_reg: no parameters
[ 0.322094] SCSI subsystem initialized
[ 0.322897] usbcore: registered new interface driver usbfs
[ 0.323077] usbcore: registered new interface driver hub
[ 0.326563] usbcore: registered new device driver usb
[ 0.327392] omap_i2c 44e0b000.i2c: could not find pctldev for node /pinmux@44 e10800/pinmux_i2c0_pins, deferring probe
[ 0.327429] platform 44e0b000.i2c: Driver omap_i2c requests probe deferral
[ 0.327484] omap_i2c 4802a000.i2c: could not find pctldev for node /pinmux@44 e10800/pinmux_i2c1_pins, deferring probe
[ 0.327508] platform 4802a000.i2c: Driver omap_i2c requests probe deferral
[ 0.331789] Switched to clocksource timer1
[ 0.477768] NET: Registered protocol family 2
[ 0.479589] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.479762] TCP bind hash table entries: 4096 (order: 5, 147456 bytes)
[ 0.480966] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.481149] TCP: reno registered
[ 0.481172] UDP hash table entries: 256 (order: 2, 20480 bytes)
[ 0.481343] UDP-Lite hash table entries: 256 (order: 2, 20480 bytes)
[ 0.482573] NET: Registered protocol family 1
[ 0.484432] RPC: Registered named UNIX socket transport module.
[ 0.484456] RPC: Registered udp transport module.
[ 0.484466] RPC: Registered tcp transport module.
[ 0.484475] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.485329] Trying to unpack rootfs image as initramfs...
[ 0.486742] rootfs image is not initramfs (no cpio magic); looks like an init rd
[ 0.493217] Freeing initrd memory: 944K (cff13000 - cffff000)
[ 0.493672] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counter s available
[ 0.497833] futex hash table entries: 256 (order: 2, 16384 bytes)
[ 0.503274] VFS: Disk quotas dquot_6.5.2
[ 0.503419] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.505845] NFS: Registering the id_resolver key type
[ 0.506197] Key type id_resolver registered
[ 0.506212] Key type id_legacy registered
[ 0.506366] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
[ 0.506789] msgmni has been set to 978
[ 0.511532] io scheduler noop registered
[ 0.511734] io scheduler deadline registered
[ 0.511811] io scheduler cfq registered (default)
[ 0.514067] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[ 0.517027] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.522737] omap_uart 44e09000.serial: no wakeirq for uart0
[ 0.523268] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 88, base_baud = 3000000) is a OMAP UART0
[ 1.230156] console [ttyO0] enabled
[ 1.238657] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[ 1.267794] brd: module loaded
[ 1.284974] loop: module loaded
[ 1.291133] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 1.301020] usbcore: registered new interface driver asix
[ 1.306871] usbcore: registered new interface driver ax88179_178a
[ 1.313398] usbcore: registered new interface driver cdc_ether
[ 1.319662] usbcore: registered new interface driver smsc95xx
[ 1.325819] usbcore: registered new interface driver net1080
[ 1.331884] usbcore: registered new interface driver cdc_subset
[ 1.338184] usbcore: registered new interface driver zaurus
[ 1.344247] usbcore: registered new interface driver cdc_ncm
[ 1.351260] usbcore: registered new interface driver cdc_wdm
[ 1.357423] usbcore: registered new interface driver usb-storage
[ 1.363889] usbcore: registered new interface driver usbtest
[ 1.380977] mousedev: PS/2 mouse device common for all mice
[ 1.391413] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
[ 1.399585] i2c /dev entries driver
[ 1.403376] Driver for 1-wire Dallas network protocol.
[ 1.412155] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 1.422003] omap_hsmmc 48060000.mmc: unable to get vmmc regulator -517
[ 1.429435] platform 48060000.mmc: Driver omap_hsmmc requests probe deferral
[ 1.437514] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.444382] usbcore: registered new interface driver usbhid
[ 1.450203] usbhid: USB HID core driver
[ 1.455475] oprofile: using arm/armv7
[ 1.459907] TCP: cubic registered
[ 1.463448] Initializing XFRM netlink socket
[ 1.468016] NET: Registered protocol family 17
[ 1.472773] NET: Registered protocol family 15
[ 1.477726] Key type dns_resolver registered
[ 1.482395] omap_voltage_late_init: Voltage driver support not added
[ 1.489047] sr_dev_init: No voltage domain specified for smartreflex0. Cannot initialize
[ 1.497525] sr_dev_init: No voltage domain specified for smartreflex1. Cannot initialize
[ 1.506994] ThumbEE CPU extension supported.
[ 1.511504] Registering SWP/SWPB emulation handler
[ 1.516567] SmartReflex Class3 initialized
[ 1.529168] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 1.536278] nand: device found, Manufacturer ID: 0x01, Chip ID: 0xd3
[ 1.543025] nand: AMD/Spansion S34ML08G1
[ 1.547122] nand: 1024MiB, SLC, page size: 2048, OOB size: 64
[ 1.553143] nand: error: CONFIG_MTD_NAND_OMAP_BCH not enabled
[ 1.559226] omap2-nand: probe of omap2-nand.0 failed with error -22
[ 1.676440] tps65910 0-002d: No interrupt support, no core IRQ
[ 1.692216] vrtc: 1800 mV
[ 1.695595] vrtc: supplied by vbat
[ 1.702928] vio: at 1500 mV
[ 1.706168] vio: supplied by vbat
[ 1.712981] vdd_mpu: 912 <--> 1312 mV at 1325 mV
[ 1.718114] vdd_mpu: supplied by vbat
[ 1.725155] vdd_core: 912 <--> 1150 mV at 1137 mV
[ 1.730372] vdd_core: supplied by vbat
[ 1.737082] vdd3: 5000 mV
[ 1.742588] vdig1: at 1800 mV
[ 1.745999] vdig1: supplied by vbat
[ 1.752538] vdig2: at 1800 mV
[ 1.755947] vdig2: supplied by vbat
[ 1.762371] vpll: at 1800 mV
[ 1.765684] vpll: supplied by vbat
[ 1.771963] vdac: at 1800 mV
[ 1.775270] vdac: supplied by vbat
[ 1.781430] vaux1: at 1800 mV
[ 1.784923] vaux1: supplied by vbat
[ 1.791216] vaux2: at 3300 mV
[ 1.794707] vaux2: supplied by vbat
[ 1.801070] vaux33: at 3300 mV
[ 1.804652] vaux33: supplied by vbat
[ 1.811012] vmmc: 1800 <--> 3300 mV at 3300 mV
[ 1.816037] vmmc: supplied by vbat
[ 1.822109] vbb: at 3000 mV
[ 1.825557] vbb: supplied by vbat
[ 1.830756] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 1.844057] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz
[ 1.940015] mmc0: host does not support reading read-only switch. assuming wr ite-enable.
[ 1.950860] mmc0: new high speed SDHC card at address 0007
[ 1.958678] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 1.965135] davinci_mdio 4a101000.mdio: detected phy mask ffffffde
[ 1.972834] mmcblk0: mmc0:0007 SD4GB 3.68 GiB
[ 1.983712] mmcblk0:
[ 1.989130] libphy: 4a101000.mdio: probed
[ 1.993465] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driv er unknown
[ 2.001862] davinci_mdio 4a101000.mdio: phy[5]: device 4a101000.mdio:05, driv er unknown
[ 2.011389] cpsw 4a100000.ethernet: Detected MACID = c4:ed:ba:8e:5a:27
[ 2.022361] input: volume_keys@0 as /devices/volume_keys@0/input/input0
[ 2.032621] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:0 0 UTC (946684800)
[ 2.041730] sr_init: No PMIC hook to init smartreflex
[ 2.047299] sr_init: platform driver register failed for SR
[ 2.070807] lis3_reg: disabling
[ 2.077047] RAMDISK: gzip image found at block 0
[ 2.204812] VFS: Mounted root (ext2 filesystem) readonly on device 1:0.
[ 2.212638] devtmpfs: mounted
[ 2.216373] Freeing unused kernel memory: 404K (c07c1000 - c0826000)
----------mount all..........
----------Starting mdev......
Please press Enter to activate this console.
[root@tq335x /]#