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
8 Q( a- ]: U: c[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
9 i# I0 X1 c4 W; y' s: L0 N[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
" {- X- Q7 j0 z! h: t# h[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
" {: K8 O/ n# U( |  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
$ z1 q5 f8 ?% ][    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    1.790613] ads7846 spi1.1: touchscreen, irq 145
' k3 @' Y! J: U& y  h: C[    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
4 C  Y1 |) O8 |1 c0 V7 l4 k[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
& X' m; E: z- i( P2 A; b' D' J$ C- b[    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
; j& o/ o! R' |+ B2 \/ {[    1.852136] IR JVC protocol handler initialized
/ a8 ~% c  R7 s: o- ?[    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
[    1.877882] IR LIRC bridge handler initialized
; O$ f, Z* y' R+ k0 V[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
% q  \& w8 f1 x7 s/ e4 M8 k[    1.895285] cpuidle: using governor ladder
1 Z; j( ~' @% y" D7 S& `' f1 t[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
2 x8 W% _. p9 x* [9 O' i+ S8 S[    1.918396] TCP cubic registered
7 A6 f# K8 k' p) \- {1 A, G[    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
8 j8 I+ e5 c7 v[    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)
7 u% S+ G& Q3 `6 ~[    1.981557] Root-NFS: no NFS server address
! q& O& x( G% u  m[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
( Y5 q. B3 b$ F% S# t! V" b. t[    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?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
: ?+ W/ b  C9 v" z  v, O[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
2 h7 s% ]% v( l5 Z  s[    2.041536] 1f06             512 mtdblock6  (driver?)
1 y, B: R( V2 \' E) T2 ]6 k[    2.046904] 1f07              64 mtdblock7
$ f- s1 h* T% [+ y, Q+ u$ b" d- Z[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
! ~7 M. N6 D$ ]9 {4 B7 H) @[    2.067289] 1f09            4096 mtdblock9
& U3 z  ]3 P/ ~* [[    2.071638] mmc0: new high speed SDHC card at address 1234
( I. r$ Y* L& W% l7 E0 ?' Y[    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)
; x/ [9 G. i) w2 w6 ~                                                                                                                                          
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.
% L! b9 o, n. u. P[    2.059503]  (driver?)
' F* |0 N3 w9 _# h8 y  H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。