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
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
8 C0 e8 P/ Y0 u& @; Q. D& v[    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
[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    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
, S6 l+ x) @4 Q5 R. v3 J[    1.818481] omap_rtc: RTC power up reset detected
  L' B4 w! ^0 R% t" Y: A& z[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
; f2 {+ Q. x) U0 u. _* N2 O[    1.842583] IR RC5(x) protocol handler initialized
* N2 ^! |" O2 V/ v$ H* g[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
7 q8 n0 Z/ N3 P5 M[    1.856796] IR Sony protocol handler initialized
6 T! e$ A$ u- Z% S# T[    1.861480] IR RC5 (streamzap) protocol handler initialized
; K5 _# Q8 E% @& S[    1.867170] IR SANYO protocol handler initialized
0 _+ _: J% ?3 n0 N- J( A[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
8 [+ F" W8 S9 [/ j[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
# s, C' N% m2 C* d; |& U& H[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
5 S" E: N3 U& W# S1 r' [[    1.946844] netconsole: network logging started
[    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)
9 X* q# J* D3 r8 w4 R# P+ V( R% s[    1.981557] Root-NFS: no NFS server address
* g; v7 }  g2 q2 E[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
1 ^$ ?; Q. Y* m/ r9 y[    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:
1 m& d& O# v6 ]$ ?+ U[    2.009218] 1f00             128 mtdblock0  (driver?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
: X9 g) a8 C: r5 G& N: b3 W" d[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
' p$ E- @4 c7 D4 O9 \[    2.046904] 1f07              64 mtdblock7
0 `1 x( I% n1 ~/ @& h[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
% z  F  c6 D1 W6 I* P, I/ s4 M" U[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
# R6 _- t. l1 [+ _/ J[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
& G) N4 \4 O- F6 B1 a# f/ T$ |. ^然后串口就没有反应了，紧急求助

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
1 ^8 y5 `) P) k" O! X[    2.059503]  (driver?)
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。
& Q1 {  x: ]/ @2 j" x