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
[    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
9 f, }; e* J+ |, f8 X2 n& ~[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    1.790613] ads7846 spi1.1: touchscreen, irq 145
8 O3 d& {! ]6 z[    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
( q! z; U7 j& o8 f1 Q0 Q/ ~% H% `[    1.818481] omap_rtc: RTC power up reset detected
3 q( \; m0 I" n7 q0 W[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
( O# ]* K: t" v. Q& g0 c/ d6 i[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
: S) t- I2 j" d  ~3 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
5 y1 \/ `) l) o6 W[    1.877882] IR LIRC bridge handler initialized
" O/ Q1 G. |/ H. ?6 M[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
' d% S: l: w* ?6 `[    1.895285] cpuidle: using governor ladder
* O& L2 J  e1 c[    1.900118] cpuidle: using governor menu
: v0 @  Q' J# I[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
9 A0 G( J, Q2 U% R[    1.918396] TCP cubic registered
[    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
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
6 r( [1 l# M8 m[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
: f3 g, d( m+ ~[    1.981557] Root-NFS: no NFS server address
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
1 R  u# V% K- A  Q3 ~- 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?)
( v. X) i) \* T' R3 z% Y! j8 p, ~/ _+ z[    2.014571] 1f01             512 mtdblock1  (driver?)
' W6 I: Q  I6 t' c: f[    2.020016] 1f02             512 mtdblock2  (driver?)
) c# @# B7 K7 s- m9 l[    2.025353] 1f03            4096 mtdblock3  (driver?)
, Y0 e0 B& h9 i' K7 m[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
4 j: H# `+ n- J; \& R3 `[    2.046904] 1f07              64 mtdblock7
1 C- Z7 x7 F( K1 H( r' {[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
6 R( S6 `4 P9 |6 Y, _[    2.061933] 1f08            2560 mtdblock8  (driver?)
  K6 Y$ ~9 C. ]) V2 r[    2.067289] 1f09            4096 mtdblock9
5 K) i9 F  E+ E; Q' D) r[    2.071638] mmc0: new high speed SDHC card at address 1234
( m- Q3 O/ A/ K, ?4 W[    2.077485]  (driver?)
! f- U3 }1 D' i[    2.079916] 1f0a              64 mtdblock10  (driver?)
# O  S9 a' Z0 g[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
) s$ ?3 A' p( P8 k                                                                                                                                          
然后串口就没有反应了，紧急求助
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teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
8 a2 L5 M" h+ d, K[    2.059503]  (driver?)
* ~* S4 b5 l# `# `' ]3 X& w3 u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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