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
% a. D7 y. ?2 X0 x7 K& W[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
[    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
6 [; B4 h1 x% s' y[    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
- G2 D* m8 A0 J3 F  H1 n" V2 u[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
$ }0 v* ^4 h& f4 F* W[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
9 h6 R2 }! a0 V) D/ e[    1.842583] IR RC5(x) protocol handler initialized
" N: A5 [1 o% X" H[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
1 Y1 ]% ^4 q! w6 e  k% y, p[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
' I8 C- R" }) I[    1.895285] cpuidle: using governor ladder
% B1 K* q4 {8 P% O  r[    1.900118] cpuidle: using governor menu
. a# {! u1 L  l, ]3 V[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
7 o. D2 r* x1 k" Y, n4 y. o# F0 y[    1.918396] TCP cubic registered
1 O0 p7 c5 J  R! m$ M[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
( b% m& v$ [& ~; H[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
: p) _0 Y$ H4 A[    1.981557] Root-NFS: no NFS server address
0 q7 l8 {  p9 Z8 b4 v( i[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
+ V3 I- j% b) p: J* l2 E[    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?)
( a: i7 w& n5 _[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
# ^: `; x: S- I+ Y: v. v[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
  _. O) K3 T$ Y[    2.046904] 1f07              64 mtdblock7
# p- {& Q" r; r0 A/ \& k[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
7 |5 B! J9 D: W0 F4 J: R[    2.071638] mmc0: new high speed SDHC card at address 1234
+ V- c9 N( v% D" Q: l" D[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
# g) |) z/ M; W" e9 j4 ~+ i[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
) m( n6 O, R8 P                                                                                                                                          
然后串口就没有反应了，紧急求助
# O/ d7 k. W5 w7 a% W

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
2 a7 [# G% K/ a! X' J3 s# n: y6 ?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。
  e/ d% ]1 v9 x0 T4 b7 e