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标题: 内核编译去掉USB驱动出现启动不了的问题 [打印本页]
作者: gaocaimary    时间: 2014-8-14 11:34
标题: 内核编译去掉USB驱动出现启动不了的问题
启动现象如下: a& M9 s6 w5 N, E7 X
[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff% s" d  \3 d( B! c9 q- P
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
+ G: S# t2 `9 z2 m[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5$ d/ k% M% p0 v
[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
1 Z/ u5 ]! V2 r5 d" L! H) ~$ M. E; T[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5. F+ ]7 b& w3 q- c  v- g
[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
) {# K5 i8 _  e3 q[    1.790613] ads7846 spi1.1: touchscreen, irq 1453 v8 i5 T2 h7 |! T  _7 k0 Q
[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0* e/ Q8 C( Y9 b9 d" V' W  z5 `
[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0, i6 o: Q8 r' x
[    1.818481] omap_rtc: RTC power up reset detected+ R7 W8 @% M; J* p, l# N: m! r
[    1.824103] i2c /dev entries driver
7 |" M) D% ?) ~" E7 L% Y[    1.831084] lirc_dev: IR Remote Control driver registered, major 253% M  H3 X( i: U! w
[    1.837971] IR NEC protocol handler initialized4 M, \4 _+ d0 V
[    1.842583] IR RC5(x) protocol handler initialized4 ?; q) l7 Q/ |" p* I" l
[    1.847554] IR RC6 protocol handler initialized
4 z$ l- {$ E  L/ w[    1.852136] IR JVC protocol handler initialized
* {$ d: ?+ x; M5 u3 ]/ |6 w[    1.856796] IR Sony protocol handler initialized
8 d% u- J7 F8 k- T  O4 M3 V( |3 s[    1.861480] IR RC5 (streamzap) protocol handler initialized% }4 m4 L* l/ ?4 x+ B
[    1.867170] IR SANYO protocol handler initialized
. q. K# d; Q8 b) E4 ]/ J4 B[    1.871935] IR MCE Keyboard/mouse protocol handler initialized* p% v( u) n+ J6 z7 ~
[    1.877882] IR LIRC bridge handler initialized
, b, G$ t) c0 I' q: k[    1.882369] Linux video capture interface: v2.00
- ?1 {8 W9 e9 O[    1.888722] watchdog watchdog: heartbeat 60 sec
( f6 U/ Q, G4 `0 n: x1 [- C5 H0 `4 o[    1.895285] cpuidle: using governor ladder
' A% D4 x+ d( y, L[    1.900118] cpuidle: using governor menu
- |5 r. A1 Y5 W2 F6 y[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
5 U& S$ f8 |; W) U[    1.918396] TCP cubic registered8 X; m  Q2 t" M2 u
[    1.921694] NET: Registered protocol family 17: I( v. g& w  e6 |4 |; h
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator* a6 w  A' ?' _- |9 y; B
[    1.942633] console [netcon0] enabled* `" l$ K$ v5 Q5 O  ~" |
[    1.946844] netconsole: network logging started
' s8 U/ y8 N. u7 z$ I7 f[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
( n; g0 ?' u4 l0 Y. M8 D[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)) p9 p: V2 T# c! g
[    1.981557] Root-NFS: no NFS server address
# O, ?& }+ U7 A& I  k" F* K[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
# V6 Z/ d! x# B$ i( \/ K/ v/ Y[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)( w- s0 [: Q2 |& S+ p2 \
[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
" b6 R% D+ s: d( p: v. `! S[    2.009218] 1f00             128 mtdblock0  (driver?)$ [$ Q- n5 E4 C8 {$ U) r
[    2.014571] 1f01             512 mtdblock1  (driver?)
! T! w/ Q% D6 ]4 \4 G) L# l[    2.020016] 1f02             512 mtdblock2  (driver?)+ J3 a) d1 g+ u+ h7 t
[    2.025353] 1f03            4096 mtdblock3  (driver?)8 c  O1 A+ `# r# F& I
[    2.030825] 1f04          519040 mtdblock4  (driver?)
5 \7 P. E$ e: B+ t  E[    2.036225] 1f05              64 mtdblock5  (driver?)
3 g" ~; Z% X9 W5 Q! X) [% ?[    2.041536] 1f06             512 mtdblock6  (driver?)
! k- M* \5 r7 v. O5 @[    2.046904] 1f07              64 mtdblock76 I8 n9 Y0 m& q, S* y& t3 `: L
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.3 {0 S. a' z0 p$ l: R  N6 k3 e7 p
[    2.059503]  (driver?)
& F# F5 {) t( i, ?7 e5 e1 {[    2.061933] 1f08            2560 mtdblock8  (driver?)
7 h+ j! k) |. R- A0 j/ s[    2.067289] 1f09            4096 mtdblock9
( r3 X, t$ V" J/ a[    2.071638] mmc0: new high speed SDHC card at address 12342 f0 q5 {# T  L3 L' t6 M# N0 n6 h
[    2.077485]  (driver?)
0 j& k- u9 z# H/ [" j" S[    2.079916] 1f0a              64 mtdblock10  (driver?): f0 Y, j' B7 t) g2 f$ b# J% Q
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)& q0 }- q8 Q. c: H
                                                                                                                                           / k- ]* r) ^' m' h# @6 S
然后串口就没有反应了，紧急求助* p. C- R- T( ~/ U, t8 h: c

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作者: teddy    时间: 2014-8-14 17:20
    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.& _, _: D3 h' d
[    2.059503]  (driver?): O) y! N2 Y( B# e( S0 u. N
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。
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