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
/ O$ T/ p1 \' I, t[    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
; x5 O- Y% T2 |# I! R[    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
7 |$ w( s& U# r1 V7 j5 r[    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
9 _4 T- _( i2 Z[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
% f$ B) f4 n4 {! |* n[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
- Q* |0 u" ~% S0 S[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
6 F9 J8 J1 w4 H" B% w[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
1 J& B# U" L+ `! D$ V[    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
& ]6 i5 x- x; U8 Z[    1.877882] IR LIRC bridge handler initialized
& R# P# p0 o- u4 K) c8 Z[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
" \( K, z$ S8 i" b9 z8 |[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
5 l1 P( o+ u6 }" Q: u: D5 T1 \[    1.918396] TCP cubic registered
, N. y$ T! ?0 Y5 C* d% I* R[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
5 A! V" p7 K9 d, i' p, p[    1.942633] console [netcon0] enabled
[    1.946844] netconsole: network logging started
; e$ F5 R6 Q# w. x; z[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
0 |1 Y) ]" A# N8 D3 @8 P( Q& ^[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
[    1.981557] Root-NFS: no NFS server address
9 O( d7 D" \- b9 b$ z  H[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
# \: [7 c2 \( E1 ^% i4 B[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
: C! n  J- Z& V' @[    2.014571] 1f01             512 mtdblock1  (driver?)
- [+ b! v( V; r[    2.020016] 1f02             512 mtdblock2  (driver?)
0 }+ M& L# s% F1 M8 J: v9 M[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
' f% ^0 D0 n3 t9 f8 s2 U  x[    2.036225] 1f05              64 mtdblock5  (driver?)
* s1 W. z, l- e8 ~[    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.
9 r8 B( m: J1 B+ e[    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
: M3 ?! l- y7 {3 b0 i[    2.077485]  (driver?)
. W4 \5 R) i+ Z  O[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
. \" T! ?& ^5 h                                                                                                                                          
: Q- i$ X! Z; O% k, W6 z& B7 q6 Q; E然后串口就没有反应了，紧急求助

- A( Y7 N" x! A. F$ X9 e" z

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
0 x# |& y; u9 p, h" e7 ?+ ]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。