AD7606问题

jinyi7016

AD7606与L138进行连接。
! W4 }+ O+ G0 m+ ]) N2 V直接接在了AD7606的总线上。系统无法启动动，无法加载文件系统，串口输出如下：

- o3 S6 @! X7 Q# o2 k" d7 a, A[    1.176205] serial8250.0: ttyS0 at MMIO 0x1c42000 (irq = 25) is a AR7
[    1.178490] serial8250.0: ttyS1 at MMIO 0x1d0c000 (irq = 53) is a AR7
1 v( I" T; J/ @) J[    1.180448] serial8250.0: ttyS2 at MMIO 0x1d0d000 (irq = 61) is a AR7
$ i& k2 {! J; ^' z( B9 L7 T[    1.642481] console [ttyS2] enabled
& d9 l& Q" Z0 I, l[    1.647982] serial8250.1: ttyS3 at MMIO 0x64000000 (irq = 135) is a ST16654
[    1.657229] serial8250.1: ttyS4 at MMIO 0x64000008 (irq = 136) is a ST16654
[    1.666468] serial8250.1: ttyS5 at MMIO 0x64000010 (irq = 138) is a ST16654
[    1.675720] serial8250.1: ttyS6 at MMIO 0x64000018 (irq = 139) is a ST16654
. r3 e6 Y: g. E, U2 c[    1.684953] serial8250.1: ttyS7 at MMIO 0x64000020 (irq = 158) is a ST16654
[    1.694197] serial8250.1: ttyS8 at MMIO 0x64000028 (irq = 190) is a ST16654
% A% k0 Q/ o4 I& ]0 r' x% W, ][    1.703408] serial8250.1: ttyS9 at MMIO 0x64000030 (irq = 195) is a ST16654
[    1.712645] serial8250.1: ttyS10 at MMIO 0x64000038 (irq = 196) is a ST16654
[    1.724244] brd: module loaded
; s% z4 e% o% b8 d[    1.746949] loop: module loaded
, N' T0 P! M7 n9 @- Y  J% Y8 u[    1.750739] at24 1-0050: 256 byte 24c02 EEPROM, writable, 8 bytes/write
[    1.763127] ahci ahci: forcing PORTS_IMPL to 0x1
1 Y# a: R! o2 F7 g3 p, W[    1.767947] ahci ahci: AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl platform mode
# W; h& }1 I$ \2 U[    1.776171] ahci ahci: flags: ncq sntf pm led clo only pmp pio slum part ccc
[    1.787390] scsi0 : ahci_platform
% n- q3 L' A( B# H( B7 G[    1.793015] ata1: SATA max UDMA/133 mmio [mem 0x01e18000-0x01e19fff] port 0x100 irq 67
[    1.806870] nand_get_flash_type: second ID read did not match 00,00 against 2c,dc
[    1.814800] No NAND device found
[    1.822496] UBI error: ubi_init: UBI error: cannot initialize UBI, error -19
[    1.830321] spi_davinci spi_davinci.1: DMA: supported
[    1.835481] spi_davinci spi_davinci.1: DMA: RX channel: 18, TX channel: 19, event queue: 0
[    1.846186] m25p80 spi1.0: unrecognized JEDEC id ffffff
[    1.852575] spi_davinci spi_davinci.1: Controller at 0xfef0e000
2 o0 P; [; k7 D1 S' p5 s+ O1 K( {[    1.862934] CAN device driver interface
[    1.867002] smsc911x: Driver version 2008-10-21
[    1.872116] _regulator_get: smsc911x supply vdd33a not found, using dummy regulator
[    1.880224] _regulator_get: smsc911x supply vddvario not found, using dummy regulator
' }% M; B1 ]) c) H) i& L" @- j( h[    1.987689] smsc911x: Device not READY in 100ms aborting
7 Z+ s  Q; Z- [[    2.038381] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
6 C+ i" p+ q5 Q6 ?9 ~7 i4 \[    2.044631] davinci_mdio davinci_mdio.0: detected phy mask fffffffe
. K" ~1 G( h8 g: G4 f0 h) r[    2.052732] davinci_mdio.0: probed
[    2.056237] davinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver SMSC LAN8710/LAN8720
5 F1 {8 C" n6 L3 i[    2.066475] PPP generic driver version 2.4.2
" \& j/ H# O2 E% {- f! T[    2.072566] PPP BSD Compression module registered
( F1 R$ C, ^! `[    2.077332] PPP Deflate Compression module registered
[    2.083484] usbcore: registered new interface driver rndis_wlan
* y: I' i% T& {* q; B  M2 @3 M[    2.090596] usbcore: registered new interface driver zd1201
! ^; e+ \7 @5 S! \[    2.097154] usbcore: registered new interface driver asix
, H+ Q$ B, h, s[    2.103476] usbcore: registered new interface driver cdc_ether
[    2.110342] usbcore: registered new interface driver net1080
" c/ P+ K# o! {" N$ z7 ~[    2.116959] usbcore: registered new interface driver rndis_host
' j! A+ f* u' x- I[    2.123813] usbcore: registered new interface driver cdc_subset
" v; M; ?7 h7 |5 v: g* c[    2.130794] usbcore: registered new interface driver zaurus
[    2.137351] usbcore: registered new interface driver cdc_ncm
1 T$ f3 y# \: _8 _% q8 S0 a[    2.149122] ata1: SATA link down (SStatus 0 SControl 300)
) l0 I& l. B; o4 W7 e/ ~% Z[    2.161271] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
2 M8 U/ Z  J! e. H" {0 E! g[    2.167758] ohci ohci.0: DA8xx OHCI
8 ~- N3 y7 U0 q; J, w! B+ l. C[    2.171805] ohci ohci.0: new USB bus registered, assigned bus number 1
8 b8 u1 Y' b# U9 h, X& C: T5 D[    2.178583] Waiting for USB PHY clock good...
. `3 B5 k" L( V  p' J[    2.183132] ohci ohci.0: irq 59, io mem 0x01e25000
[    2.240810] hub 1-0:1.0: USB hub found
2 {3 q+ i  ^' V9 Y: o: ]3 J[    2.244710] hub 1-0:1.0: 1 port detected
' }% M0 b6 L& l" {# C$ G+ b[    2.250953] Initializing USB Mass Storage driver...
[    2.256972] usbcore: registered new interface driver usb-storage
[    2.263252] USB Mass Storage support registered.
% R' \  F& j- ~: q) ~/ j[    2.269618] usbcore: registered new interface driver usbserial
[    2.275547] usbserial: USB Serial Driver core
  b1 B/ a7 m" }- P' q[    2.280838] USB Serial support registered for GSM modem (1-port)
[    2.288032] usbcore: registered new interface driver option
[    2.293841] option: v0.7.2:USB Driver for GSM modems
; K% e# U# f2 r3 c# B: t[    2.299461]  gadget: Mass Storage Function, version: 2009/09/11
( V% t3 }& H7 b/ z  j$ [+ j0 \) B[    2.305485]  gadget: Number of LUNs=1
[    2.309319]  lun0: LUN: removable file: (no medium)
[    2.314343]  gadget: Mass Storage Gadget, version: 2009/09/11
[    2.320259]  gadget: userspace failed to provide iSerialNumber
[    2.326193]  gadget: g_mass_storage ready
+ u2 Q& }# f+ B' ?: }) X0 Q[    2.330331] musb-hdrc musb-hdrc: MUSB HDRC host driver
1 n/ O: o) h# R+ Y[    2.335636] musb-hdrc musb-hdrc: new USB bus registered, assigned bus number 2
[    2.345560] hub 2-0:1.0: USB hub found
[    2.349926] hub 2-0:1.0: 1 port detected
[    2.357651] mousedev: PS/2 mouse device common for all mice
& J0 s* Y( R" p& X. P[    2.364530] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    2.372684] ads7846 spi1.1: touchscreen, irq 145
) {5 S8 ^/ e4 i, ?0 D9 _# o0 J  E[    2.379052] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
0 o3 \/ p( p# I  f, U[    2.392948] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
/ ~: _4 T4 e6 s* E" ][    2.399709] omap_rtc: RTC power up reset detected
% j* e! g! Q# K0 d[    2.405242] i2c /dev entries driver
[    2.410583] Linux video capture interface: v2.00
[    2.423599] ov2640 1-0030: Product ID error 87:87
4 r. Z- r: N  }/ w& `  v[    2.429276] vpif_capture vpif_capture: Error registering v4l2 subdevice
[    2.439504] usbcore: registered new interface driver uvcvideo
- g: J! p& Y, T+ X0 o[    2.445311] USB Video Class driver (1.1.1)
9 [: C) U$ r, `# B7 C' ~  u[    2.450236] watchdog watchdog: heartbeat 60 sec
3 ], ]2 q" P1 C$ F[    2.456605] cpuidle: using governor ladder
" G5 m4 w1 @/ \[    2.461461] cpuidle: using governor menu
[    2.468706] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    2.480437] usbcore: registered new interface driver usbhid
[    2.486069] usbhid: USB HID core driver
[    2.490586] _regulator_get: ad7606-8.0 supply vcc not found, using dummy regulator
0 z7 }# Y3 q9 i. s" _[    2.504085] timer clk rate(156000000)
[    2.508918] iio_davinci_tmr_trigger iio_davinci_tmr_trigger.0: iio trigger davinci TMR2, IRQ-68
[    2.520679] usbcore: registered new interface driver snd-usb-audio
  c0 l/ ?7 d4 o8 D- v[    2.533635] soc-audio soc-audio.0: ASoC: Failed to create card debugfs directory
! C# a+ ?& W% C2 b5 v9 d  @[    2.541868] _regulator_get: 1-0018 supply IOVDD not found, using dummy regulator
[    2.549712] _regulator_get: 1-0018 supply DVDD not found, using dummy regulator
2 r' r+ J! Z0 I/ b3 W5 U[    2.557274] _regulator_get: 1-0018 supply AVDD not found, using dummy regulator
- ~/ ~  l5 Q+ ^3 E2 m[    2.564976] _regulator_get: 1-0018 supply DRVDD not found, using dummy regulator
[    2.580805] asoc: tlv320aic3x-hifi <-> davinci-mcasp.0 mapping ok
1 M" S2 R% X% p, A( f# o9 r[    2.588521] usb 1-1: new full-speed USB device number 2 using ohci
[    2.598655] ALSA device list:
# j: I- B- v' A$ s1 N- U3 e1 O[    2.601677]   #0: DA850/OMAP-L138 EVM
1 R, m, p0 r/ P& Q& m[    2.605734] TCP cubic registered
" }! q5 ^9 }/ t$ R3 l7 M5 y0 D[    2.609341] NET: Registered protocol family 17
[    2.613928] can: controller area network core (rev 20090105 abi 8)
, p5 q8 W- H; K7 x: f0 N% T[    2.620526] NET: Registered protocol family 29
[    2.625052] can: raw protocol (rev 20090105)
/ v# q$ W- z9 O6 H+ S[    2.629468] can: broadcast manager protocol (rev 20090105 t)
[    2.635222] can: netlink gateway (rev 20101209)
' e) c7 L  ]- C: D[    2.641090] lib80211: common routines for IEEE802.11 drivers
[    2.647177] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    2.662294] console [netcon0] enabled
[    2.666005] netconsole: network logging started
[    2.675263] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
; n( z9 v' n; C( [[    2.684933] VFS: Cannot open root device "ubi0_0" or unknown-block(0,0)
7 T, L5 ]2 v- S5 u5 }" }4 C[    2.691763] Please append a correct "root=" boot option; here are the available partitions:
9 d/ c' [3 d: `5 I5 C- }  D[    2.700308] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
8 M+ ~7 I* w5 ?0 u
7 |* @- }- ~1 J7 W2 {' o

之前以为是CS的问题，后来再测，发现CS是高电平，目前是把CS ＼OE两个引脚者断了。还是不行。
但是AD7606的3.3V电压断开后就可以正常启动，只要是接着3.3V的逻辑电源就无法启动动。其他的5V模拟电源都是正常接着的。
+ |. O$ V3 Z! H# v2 r这是不是AD7606在总线上会对Nand的读取有干扰的问题？
$ ?4 X# \& Y$ a* a/ b
) }( V* N5 L( A8 e9 }4 J/ m  {创龙的AD7606模块是怎么连接的，可不可以提供一下原理图。
& ~) B  \( D% X8 V5 \& J