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我在创龙提供的Linux3.3的内核上，在Device driver选项中去掉USB驱动，结果在启动的过程中出现了
# o# Z1 g8 c, a8 }/ t8 D$ O[ 1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff/ v- A9 i4 T. P, X. r9 B
[ 1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
; k9 f! ^. T, i[ 1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
' u+ }0 D) F! o! l[ 1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
5 L o- S; F" L( ]) k5 G8 U [[ 1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
0 d7 V/ `, j# n$ g$ q. q. Y3 A[ 1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
5 h7 F* X# T W2 h9 v" A) j2 D+ Z[ 1.790613] ads7846 spi1.1: touchscreen, irq 1458 s8 ^9 b; A7 s8 e
[ 1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
3 @+ B" u& [+ V3 }0 @# t7 F[ 1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
6 v+ q( _4 t; J% i7 c4 Q! G- C" M[ 1.818481] omap_rtc: RTC power up reset detected M4 A J6 `4 z! L/ \! S: c7 C* d
[ 1.824103] i2c /dev entries driver+ f; R- {, H, l: H
[ 1.831084] lirc_dev: IR Remote Control driver registered, major 253
; R: @" g; o0 m( p7 n2 ^, g[ 1.837971] IR NEC protocol handler initialized$ A/ J" I E, g: h# W9 R. H
[ 1.842583] IR RC5(x) protocol handler initialized& I# b4 Q; O/ u4 k
[ 1.847554] IR RC6 protocol handler initialized
, Q( C5 t6 h5 A$ v% P6 k# h6 T[ 1.852136] IR JVC protocol handler initialized c! s2 j- Y' D" M% Y
[ 1.856796] IR Sony protocol handler initialized; q" K# E0 `5 l/ h
[ 1.861480] IR RC5 (streamzap) protocol handler initialized
5 C/ { i1 L# M& t- F0 X. D[ 1.867170] IR SANYO protocol handler initialized
1 o9 T" m, W3 R2 x[ 1.871935] IR MCE Keyboard/mouse protocol handler initialized: T7 W# u6 H/ z3 o' K; ` T
[ 1.877882] IR LIRC bridge handler initialized
! _6 y* A& A. \[ 1.882369] Linux video capture interface: v2.00) l+ z7 M" x8 N2 C3 N* M, L
[ 1.888722] watchdog watchdog: heartbeat 60 sec( e5 B* h) b& D0 p
[ 1.895285] cpuidle: using governor ladder
8 X5 O) A2 y2 I9 Z. M[ 1.900118] cpuidle: using governor menu) ]+ v% b0 l* J! c2 z
[ 1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode) e8 j; _" N2 K& ^* |# p- D! t
[ 1.918396] TCP cubic registered
) ^) Q* T: L$ @5 k[ 1.921694] NET: Registered protocol family 17
6 o. v0 E6 [5 r# A# E; c' J[ 1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator) p! h* G, B4 O: s3 \* h
[ 1.942633] console [netcon0] enabled4 s3 u0 W( `- [: `( Q3 i
[ 1.946844] netconsole: network logging started" r! Q* i ~ r1 s9 ?
[ 1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d$ P7 N% P! N/ e
[ 1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)7 B' g$ q5 L! G$ ~
[ 1.981557] Root-NFS: no NFS server address( r5 Q$ P7 z- q3 M
[ 1.985997] VFS: Unable to mount root fs via NFS, trying floppy.7 p; O' g' M2 E9 s3 ^$ q1 r, s: _
[ 1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
2 l8 [- v6 X- y* T! \ ]6 T[ 2.000512] Please append a correct "root=" boot option; here are the available partitions:
0 \" k# Q/ n$ e2 b9 }0 o) a) Y[ 2.009218] 1f00 128 mtdblock0 (driver?)
( t5 K/ B! f9 [4 \8 V[ 2.014571] 1f01 512 mtdblock1 (driver?)$ a8 N' ]8 O# N* ]
[ 2.020016] 1f02 512 mtdblock2 (driver?)
* w$ X; g: x$ M; U2 o5 X+ z$ J[ 2.025353] 1f03 4096 mtdblock3 (driver?)
9 m; Z: \2 Y+ F" I[ 2.030825] 1f04 519040 mtdblock4 (driver?)
$ T- y( N* @, t( `+ k[ 2.036225] 1f05 64 mtdblock5 (driver?)' B, _* {4 O& ~( [1 `' s
[ 2.041536] 1f06 512 mtdblock6 (driver?)/ X' d6 X: o) L d$ B4 h8 p# S
[ 2.046904] 1f07 64 mtdblock72 k( w# j* g" r* v! N- {9 v
[ 2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
* @! U6 I& s* j4 x[ 2.059503] (driver?)# |" S8 k0 I' d" ?. [9 G7 y
[ 2.061933] 1f08 2560 mtdblock8 (driver?)
# {. y$ V, b! z0 [9 k' D[ 2.067289] 1f09 4096 mtdblock9) J; }& A1 I2 i) ?8 i9 f2 M( Y
[ 2.071638] mmc0: new high speed SDHC card at address 1234
! D% K1 a* l# y' z0 a$ Q1 \. j- X[ 2.077485] (driver?)
: G9 J( ?% j1 U i$ L; ^[ 2.079916] 1f0a 64 mtdblock10 (driver?)
4 n! j! L% j& K2 ]) g[ 2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
! @1 g7 K) E! f# m 0 c$ o3 n' s$ }/ c8 }9 n+ I
去掉I2C驱动后也会出现同样的问题，请各位高手指教9 u1 ]& r2 J$ K, X$ U/ t
' O% m' u/ P h* k- t% b
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发表于 2014-8-14 11:33:03
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