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
[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
  M& K- w  O' o! B3 ~[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
1 W; c& f. u' `6 H0 [# [" m[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
$ g+ [9 ]0 @9 S7 W  U9 ?[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
/ [% p4 o5 a' S: [" E* U[    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
: X/ x) e: r0 r7 r[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
) L4 a0 T- j/ T% N6 p7 T[    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
[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
4 M: t9 G$ G6 `- a4 {[    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
[    1.882369] Linux video capture interface: v2.00
7 R; d' z' t, c[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
( X  M% E4 o2 R2 R9 |% t[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
8 g, b  F) B$ `[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
9 @/ o( X2 q1 Y$ f$ @6 u[    1.942633] console [netcon0] enabled
  l1 B& Y' W- |[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
! J' c% N1 G; y/ d. |[    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
) [! }2 Y0 k; y- u8 H/ s[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
% X0 j* \# E! w# ^. I! Q[    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?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
1 C3 H2 A, O) g' {( r1 \[    2.025353] 1f03            4096 mtdblock3  (driver?)
0 G) g6 Y& z# J[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
' q: w9 C0 c, ?7 ?[    2.041536] 1f06             512 mtdblock6  (driver?)
[    2.046904] 1f07              64 mtdblock7
/ V$ i: K- M3 z, `2 y0 Q[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
( G1 F; S! B" u/ h[    2.061933] 1f08            2560 mtdblock8  (driver?)
8 v0 `1 o$ v* q) k* P  a$ o. Y$ k' U& z[    2.067289] 1f09            4096 mtdblock9
( o; n. i. u: ~2 h[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
/ W. h: O/ n7 r* [; ]9 j9 t[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
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.
[    2.059503]  (driver?)
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。