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
) P. F  P1 E8 [( V  T6 g  p[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
; f2 D! T) U. b: G9 z[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
8 ?; j' d0 [+ P+ ~9 k[    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
# r3 A, l$ k) g, ?: E2 c& z% [[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
9 `1 i) t: E$ Z( W[    1.790613] ads7846 spi1.1: touchscreen, irq 145
0 e1 h) p7 R$ X! Y( Z! O5 O1 O[    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
[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
( U  U; h6 h4 V/ N[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
- U  Z9 T4 }1 G) Q[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
7 z, b8 L; q! ?% w+ v[    1.847554] IR RC6 protocol handler initialized
4 y+ n6 l: J8 Y- @& `. Y* F2 _[    1.852136] IR JVC protocol handler initialized
+ [: R2 x2 V: b6 E) b, j8 {# F[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
) o2 Y& X0 g, d" V. B; P, _3 ][    1.867170] IR SANYO protocol handler initialized
% F2 d& n8 H; `: H- F[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
3 ~9 U0 k$ V* o4 z" |" j4 |[    1.877882] IR LIRC bridge handler initialized
7 e* d4 [6 m# Q9 q[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
! j1 _% E) `0 S: ^8 \* _; Y[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
. ~3 ]9 u. Z& N) @[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
0 g. |8 R( @4 s! ]: Q+ i[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
. b" D& }4 i/ I: m7 R: D[    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)
! }& X: T9 o$ c6 Z! V' h[    1.981557] Root-NFS: no NFS server address
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
; n5 q% b2 V$ ~/ c1 u[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
: @7 C( m; b6 [9 i9 z- j+ B1 a6 u[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
; B' w- G( k& J- F8 W% S[    2.009218] 1f00             128 mtdblock0  (driver?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
( v1 D& ?" v+ V( Z+ b% I: s[    2.020016] 1f02             512 mtdblock2  (driver?)
% m+ D% \+ P0 ^+ P( Z[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
9 B/ L1 O& q1 G9 H1 u[    2.036225] 1f05              64 mtdblock5  (driver?)
; t. ]$ Y' E/ t$ f+ j[    2.041536] 1f06             512 mtdblock6  (driver?)
3 @  j0 c8 i  V0 |[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
0 I8 D8 W# X; E: _[    2.059503]  (driver?)
+ m# q' [, K3 P" u8 c  d[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
) ]& u4 `. D/ U4 c8 p[    2.071638] mmc0: new high speed SDHC card at address 1234
: E/ f, r" o! Q. |! \5 k  a4 @! ?[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
; K: X% h) ]$ t# G- J! B, ^2 W[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
! o4 x* P) n0 t. T* @                                                                                                                                          
然后串口就没有反应了，紧急求助
$ r% F: u- X; l1 ]) M& h% t
( S; p* I+ s" Q: T

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
9 p* F! A- t9 ?/ Y$ G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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