内核编译去掉USB驱动出现启动不了的问题

gaocaimary

启动现象如下
[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
- Q' c, U$ Y! F( u[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
7 t. b. z) J: t/ g- s' d" S" \/ I[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
1 A, T# {4 }' n+ {2 j3 F. ^, G[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
1 ^, j% j% t! Q& t& F# M) m' a6 |[    1.790613] ads7846 spi1.1: touchscreen, irq 145
[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
5 D. R/ W2 \/ \/ J6 b[    1.818481] omap_rtc: RTC power up reset detected
, _8 G* [+ @6 S/ ~  U[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
6 a! e  M5 A/ N/ M3 j% H3 i: D5 m[    1.852136] IR JVC protocol handler initialized
7 Z$ F/ o9 K$ I( a- D[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
8 ]# Z8 |) ^5 |7 Z[    1.867170] IR SANYO protocol handler initialized
/ W8 E2 w/ l/ A6 G[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
  S2 [) D/ D$ K4 S+ l" n[    1.877882] IR LIRC bridge handler initialized
# S+ y# l" ^' G2 ?  u  Y$ Q. B8 H[    1.882369] Linux video capture interface: v2.00
% q5 f- @; S/ h# f7 x[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
) b" {7 z" w2 T[    1.900118] cpuidle: using governor menu
) b8 B" V& b- s[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
& u# u, U: L1 }1 S( m* V[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
" J/ z" K4 N8 n; a. _# k! i[    1.942633] console [netcon0] enabled
[    1.946844] netconsole: network logging started
% l! {- W: I2 C, {! n/ s- @  N[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
2 Z& D+ |0 V. y[    1.981557] Root-NFS: no NFS server address
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
5 J/ T+ |" A% S+ Z' M) b+ Q/ d& m) V; I[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
/ S4 V! @/ e+ U2 Q[    2.014571] 1f01             512 mtdblock1  (driver?)
6 v7 v, @3 u5 z[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
6 ]0 I  q9 ^+ `9 r, R[    2.030825] 1f04          519040 mtdblock4  (driver?)
2 M' `9 Q* }1 I2 Y! ]. p6 N[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
% g* n$ P: r0 |. h8 Q$ ]- @[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
" n' R- p8 p9 N* l3 F1 b+ S1 t[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
1 z) ~. O) e( N- _- Z[    2.077485]  (driver?)
: H8 d, \# O  R[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
然后串口就没有反应了，紧急求助

9 `) {% H  |2 q9 L' S4 W1 D" T

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
, G5 \# q9 _( x$ T: i. B" M# L您的问题，可能是sd的wp管脚被lock了，请检查一下sd卡，跟usb驱动应该无关的。