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
7 M& G1 H1 {4 Y: h[    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
: h4 W. J2 ~; b; G[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
, V" u4 i+ p/ a: m" v. |[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
/ B4 _) b: l" N3 s, R8 e[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
2 F% f4 M  q  V[    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
3 q1 @# d8 Y* Y* [) t' I[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
[    1.818481] omap_rtc: RTC power up reset detected
- p3 I$ q% a9 ~+ Y/ S+ [! F[    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
, I) y( O! J. e) J6 _, H[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
. d1 j8 l# g/ I8 j( d: y, o$ y[    1.856796] IR Sony protocol handler initialized
! R3 ~( s; W: v+ F2 l[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
' \8 {3 Y3 ]- ~& S[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
, W5 d0 B  R4 j( f# n& n# y[    1.877882] IR LIRC bridge handler initialized
: y8 H0 ~5 \0 K1 o1 @2 o. f$ S9 e; D[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
1 g5 C4 q% ^; b7 L8 q' \  u: |0 I[    1.895285] cpuidle: using governor ladder
$ A. W; x) R9 |1 I; i: D[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
0 A, j9 n- K, h* ~3 w0 L9 Y[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
( Y: y' x/ w  ~3 M  q[    1.942633] console [netcon0] enabled
; r, ?: b; U& m, h: f. n' f[    1.946844] netconsole: network logging started
; j9 i1 S0 y$ P* K+ Y1 S0 m  S[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
+ \5 _: H1 Y: D# c8 n7 `# F[    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
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
3 M) P3 u3 b. t5 _) w& r! k2 k[    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:
! s+ l' [: l6 u& a0 L2 a9 F[    2.009218] 1f00             128 mtdblock0  (driver?)
9 w" Y1 D/ A3 y  e[    2.014571] 1f01             512 mtdblock1  (driver?)
4 Z6 A) H0 s3 w. H[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
: ?1 H3 }  ]3 A: A% `# ~[    2.030825] 1f04          519040 mtdblock4  (driver?)
3 C2 R- d6 U# l1 m* _& C[    2.036225] 1f05              64 mtdblock5  (driver?)
- d& T3 M# X% |/ [9 Z0 H& C& H[    2.041536] 1f06             512 mtdblock6  (driver?)
- m: T7 b, Z& ?7 t[    2.046904] 1f07              64 mtdblock7
0 y+ W4 A3 I6 A3 K2 E[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
/ u; I! e; w$ \# U; G7 D' h[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
5 I# T$ e5 X! G9 P( \[    2.077485]  (driver?)
! {+ f, F6 Y4 a% l3 w9 [[    2.079916] 1f0a              64 mtdblock10  (driver?)
$ B. Y' k, f: q- u5 G[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
9 i2 j* Y% S/ e5 X, X! v6 q) U, r然后串口就没有反应了，紧急求助

8 N2 M0 T; S8 K( s" ^4 J. O

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。
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