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
+ n4 V: l% ?2 J! h! H1 J$ o[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
0 [' A4 b+ S  U! T; i2 b  n/ I8 M[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
& f; B( ^/ n! F# [* x! W& s[    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
- Q/ p: s# l7 Z  E3 F3 @) p- O. X2 |[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    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
[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
[    1.818481] omap_rtc: RTC power up reset detected
) V6 k0 W8 R6 p- u6 [4 g2 q0 ~[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
1 p# n9 S$ c$ p* r+ Q[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
3 J* y0 v' D; a9 y[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
- s* Z! i2 ^+ q[    1.856796] IR Sony protocol handler initialized
5 s" V/ j. I7 s" v! Z" p[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
5 `0 R+ T  o; E[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
% f1 H9 ^0 m1 Y8 Y% m. A[    1.888722] watchdog watchdog: heartbeat 60 sec
: z8 v$ b: z+ ]3 ]! u; f[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
, M5 u+ k9 m+ j[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
9 [$ V; u/ n' |; ?[    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
6 }# Q, K6 s- g6 l1 N. O8 a[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
# C  m# T6 R& s: |[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
2 p1 V2 g9 {6 g0 w9 _7 ]- z9 J[    1.981557] Root-NFS: no NFS server address
# j1 I/ K. l7 ~8 l[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
$ C0 H+ M2 k) j8 ~- A& M6 R8 }[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
9 }; L7 D/ b8 Q$ V" @% R[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
/ W! N, c5 a; `2 ]# R[    2.009218] 1f00             128 mtdblock0  (driver?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
. P# H" Q0 Z; W( [[    2.036225] 1f05              64 mtdblock5  (driver?)
2 L2 z% @7 y3 W- ^[    2.041536] 1f06             512 mtdblock6  (driver?)
7 v0 |6 Y+ N7 G- W* F1 I$ r" z[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
! i5 J* [8 d1 w. y, Z[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
  A" Q9 [5 x' 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)
                                                                                                                                          
6 V/ T0 I2 A7 P3 b# }5 b然后串口就没有反应了，紧急求助

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