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
( C1 k! E5 }6 H+ p( p6 K. G' d[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
7 C# }4 t  v6 r8 S[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
# ]- Y/ ?) b# n; d. F: f; x) d* b[    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
% Q3 x; ^0 a1 l3 Z% r0 _[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
  t: a) ^( w, E- p" J5 K& v[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
4 Q5 X+ K0 ], B# @( ^! j: g5 Z9 P[    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
: M  f* C( E1 t$ Z$ V[    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
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
5 q: e: G5 E3 ^5 J3 U[    1.837971] IR NEC protocol handler initialized
6 n0 Z, {8 n8 Q8 l! T[    1.842583] IR RC5(x) protocol handler initialized
- s$ x0 b0 q; |- ][    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
8 q1 ~9 q; s. k- S[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
$ [# y$ g& I, y. U2 E# o* x0 H[    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
" ]9 J1 N* e0 T1 w3 s7 N5 Q[    1.888722] watchdog watchdog: heartbeat 60 sec
1 S+ c' l, S0 \5 }$ l& T8 |6 Q. Q[    1.895285] cpuidle: using governor ladder
9 J$ R3 s4 |' y  V[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    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
; {3 r% A% j, N6 p! H[    1.946844] netconsole: network logging started
2 H; g- `4 _, {0 H. y% n4 ^[    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)
[    1.981557] Root-NFS: no NFS server address
" z6 ~; ]: p' f8 J- B# H. e7 P$ Y, a[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
% ^1 e+ o) [/ [5 Q4 y4 w7 I; e[    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?)
8 k* @: N0 @, Q' w" h[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
) L+ c: ^; p) t2 O, W[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
* C4 W7 y% a8 a5 Z; u" q( V[    2.061933] 1f08            2560 mtdblock8  (driver?)
, Z$ p9 {  \3 O) O, w. m$ o7 s; y[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
1 U$ @0 g! \6 Q[    2.079916] 1f0a              64 mtdblock10  (driver?)
' S" D) c0 X- i7 Y[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
8 T* u7 J8 N- A5 g& Q                                                                                                                                          
$ F, v6 u5 H' P" s" ~然后串口就没有反应了，紧急求助
4 Q( A6 Z" }, g9 p  d+ t6 }
. X5 n: x( g( I; q  w/ [$ I

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
( }) R! n  L: M( l% S7 {0 L# J[    2.059503]  (driver?)
( ~4 s9 r: C% e; Z. n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。