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AM3352 LCD_PCLK 没有信号输出

Other Parts Discussed in Thread: TPS65910

U-Boot 2013.01.01 (Oct 11 2017 - 21:35:50)

I2C: ready
DRAM: 128 MiB
WARNING: Caches not enabled
Could not probe the EEPROM; something fundamentally wrong on the I2C bus.
Could not get board ID.
NAND: No NAND device found!!!
0 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment

musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
Net: <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot: 0
U-Boot# set serverip 192.168.0.23
U-Boot# set ipaddr 192.168.0.223
U-Boot# tftp 0x81000000 192.168.0.23:uImage
cpsw Waiting for PHY auto negotiation to complete. done
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.0.23; our IP address is 192.168.0.223
Filename 'uImage'.
Load address: 0x81000000
Loading: #################################################################
#################################################################
#################################################################
###########################
665 KiB/s
done
Bytes transferred = 3246176 (318860 hex)
U-Boot# bootm
## Booting kernel from Legacy Image at 81000000 ...
Image Name: Linux-3.2.0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3246112 Bytes = 3.1 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[ 0.000000] Linux version 3.2.0 (fuqi@localhost.localdomain) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1-4.8-2014.03 - Linaro GCC 2014.03) ) #48 Sat Mar 3 17:17:39 CST 2018
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine: am335xevm
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] AM335X ES2.1 (neon )
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO0,115200
[ 0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Memory: 128MB = 128MB total
[ 0.000000] Memory: 123136k/123136k available, 7936k reserved, 0K highmem
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xc8800000 - 0xff000000 ( 872 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc05c8000 (5888 kB)
[ 0.000000] .init : 0xc05c8000 - 0xc0603000 ( 236 kB)
[ 0.000000] .data : 0xc0604000 - 0xc066da50 ( 423 kB)
[ 0.000000] .bss : 0xc066da74 - 0xc069c964 ( 188 kB)
[ 0.000000] NR_IRQS:396
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[ 0.000000] Total of 128 interrupts on 1 active controller
[ 0.000000] OMAP clockevent source: GPTIMER2 at 24000000 Hz
[ 0.000000] OMAP clocksource: GPTIMER1 at 32768 Hz
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000091] Calibrating delay loop... 795.44 BogoMIPS (lpj=3977216)
[ 0.039093] pid_max: default: 32768 minimum: 301
[ 0.039184] Security Framework initialized
[ 0.039276] Mount-cache hash table entries: 512
[ 0.039642] CPU: Testing write buffer coherency: ok
[ 0.059478] omap_hwmod: gfx: failed to hardreset
[ 0.075347] omap_hwmod: pruss: failed to hardreset
[ 0.076385] print_constraints: dummy:
[ 0.076721] NET: Registered protocol family 16
[ 0.078643] OMAP GPIO hardware version 0.1
[ 0.081024] omap_mux_init: Add partition: #1: core, flags: 0
[ 0.082733] omap_i2c.1: alias fck already exists
[ 0.083526] omap2_mcspi.1: alias fck already exists
[ 0.083740] omap2_mcspi.2: alias fck already exists
[ 0.084564] edma.0: alias fck already exists
[ 0.084594] edma.0: alias fck already exists
[ 0.084594] edma.0: alias fck already exists
[ 0.108734] bio: create slab <bio-0> at 0
[ 0.110809] SCSI subsystem initialized
[ 0.112274] usbcore: registered new interface driver usbfs
[ 0.112548] usbcore: registered new interface driver hub
[ 0.112701] usbcore: registered new device driver usb
[ 0.112976] registerd cppi-dma Intr @ IRQ 17
[ 0.113006] Cppi41 Init Done Qmgr-base(c887a000) dma-base(c8878000)
[ 0.113006] Cppi41 Init Done
[ 0.113037] musb-ti81xx musb-ti81xx: musb0, board_mode=0x13, plat_mode=0x3
[ 0.113311] musb-ti81xx musb-ti81xx: musb1, board_mode=0x13, plat_mode=0x1
[ 0.114318] omap_i2c omap_i2c.1: bus 1 rev2.4.0 at 100 kHz
[ 0.116027] tps65910 1-002d: JTAGREVNUM 0x0
[ 0.118377] print_constraints: VRTC:
[ 0.119812] print_constraints: VIO: at 1500 mV
[ 0.122100] print_constraints: VDD1: 600 <--> 1500 mV at 1262 mV normal
[ 0.124359] print_constraints: VDD2: 600 <--> 1500 mV at 1137 mV normal
[ 0.125305] print_constraints: VDD3: 5000 mV
[ 0.126708] print_constraints: VDIG1: at 1800 mV
[ 0.128082] print_constraints: VDIG2: at 1800 mV
[ 0.129486] print_constraints: VPLL: at 1800 mV
[ 0.130889] print_constraints: VDAC: at 1800 mV
[ 0.132293] print_constraints: VAUX1: at 1800 mV
[ 0.133697] print_constraints: VAUX2: at 3300 mV
[ 0.135070] print_constraints: VAUX33: at 3300 mV
[ 0.136444] print_constraints: VMMC: at 3300 mV
[ 0.136901] tps65910 1-002d: No interrupt support, no core IRQ
[ 0.138153] Advanced Linux Sound Architecture Driver Version 1.0.24.
[ 0.139221] Switching to clocksource gp timer
[ 0.152984] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
[ 0.153167] musb-hdrc musb-hdrc.0: dma type: dma-cppi41
[ 0.153472] MUSB0 controller's USBSS revision = 4ea20800
[ 0.153503] musb0: Enabled SW babble control
[ 0.154327] musb-hdrc musb-hdrc.0: USB OTG mode controller at c883c000 using DMA, IRQ 18
[ 0.154479] musb-hdrc musb-hdrc.1: dma type: dma-cppi41
[ 0.154754] MUSB1 controller's USBSS revision = 4ea20800
[ 0.154785] musb1: Enabled SW babble control
[ 0.155181] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[ 0.155273] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 1
[ 0.155395] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 0.155395] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.155426] usb usb1: Product: MUSB HDRC host driver
[ 0.155426] usb usb1: Manufacturer: Linux 3.2.0 musb-hcd
[ 0.155426] usb usb1: SerialNumber: musb-hdrc.1
[ 0.156188] hub 1-0:1.0: USB hub found
[ 0.156219] hub 1-0:1.0: 1 port detected
[ 0.156707] musb-hdrc musb-hdrc.1: USB Host mode controller at c883e800 using DMA, IRQ 19
[ 0.157104] NET: Registered protocol family 2
[ 0.157287] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.157562] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.157623] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.157684] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.157684] TCP reno registered
[ 0.157714] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.157714] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.157897] NET: Registered protocol family 1
[ 0.158172] RPC: Registered named UNIX socket transport module.
[ 0.158172] RPC: Registered udp transport module.
[ 0.158172] RPC: Registered tcp transport module.
[ 0.158172] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.158416] NetWinder Floating Point Emulator V0.97 (double precision)
[ 0.165496] VFS: Disk quotas dquot_6.5.2
[ 0.165557] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.166046] msgmni has been set to 240
[ 0.169036] alg: No test for stdrng (krng)
[ 0.169708] io scheduler noop registered
[ 0.169738] io scheduler deadline registered
[ 0.169799] io scheduler cfq registered (default)
[ 0.170898] Could not set LED4 to fully on
[ 0.210296] omap_uart.0: ttyO0 at MMIO 0x44e09000 (irq = 72) is a OMAP UART0
[ 0.863739] console [ttyO0] enabled
[ 0.867950] omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
[ 0.875732] omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
[ 0.883514] omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
[ 0.891296] omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
[ 0.899017] omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
[ 0.907226] omap4_rng omap4_rng: OMAP4 Random Number Generator ver. 2.00
[ 0.914581] [drm] Initialized drm 1.1.0 20060810
[ 0.927612] brd: module loaded
[ 0.935211] loop: module loaded
[ 0.938659] i2c-core: driver [tsl2550] using legacy suspend method
[ 0.945190] i2c-core: driver [tsl2550] using legacy resume method
[ 0.951629] at24 1-0051: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 1.049957] No daughter card found
[ 1.053527] at24 1-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 1.060852] SKU:
[ 1.062988] The board is general purpose EVM in profile 0
[ 1.068664] evm_id=0x00000000 profile=0x00000001 PROFILE_NONE=0xffffffff
[ 1.076202] i=0
[ 1.078125] i=1
[ 1.080139] lcdc_init1!
[ 1.082702] conf_disp_pll 0xc061be94 0x04c4b400
[ 1.087493] lcdc_init2!
[ 1.090118] da8xx_lcdc.0: alias fck already exists
[ 1.095550] fb_probe!
[ 1.097961] da8xx_lcdc da8xx_lcdc.0: GLCD: Found Sharp_LCD121 panel
[ 1.116882] Console: switching to colour frame buffer device 100x37
[ 1.130371] fb_probe success!
[ 1.133483] lcdc_init3!
[ 1.136016] i=3
[ 1.137969] i=4
[ 1.139892] omap_i2c.3: alias fck already exists
[ 1.145263] omap_i2c omap_i2c.3: bus 3 rev2.4.0 at 100 kHz
[ 1.151550] i=6
[ 1.153503] omap_hsmmc.0: alias fck already exists
[ 1.158843] i=7
[ 1.160736] i=8
[ 1.162597] i=9
[ 1.164428] i=10
[ 1.166351] i=11
[ 1.168273] i=12
[ 1.170227] am33xx_cpsw_init
[ 1.173217] gmii_sel=0x00000045
[ 1.178863] registered am33xx_sr device
[ 1.184631] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 1.191772] omap2-nand driver initializing
[ 1.196197] OneNAND driver initializing
[ 1.201416] CAN device driver interface
[ 1.205444] CAN bus driver for Bosch D_CAN controller 1.0
[ 1.259887] davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
[ 1.266357] davinci_mdio davinci_mdio.0: detected phy mask fffffffd
[ 1.273529] davinci_mdio.0: probed
[ 1.277099] davinci_mdio davinci_mdio.0: phy[1]: device 0:01, driver unknown
[ 1.284790] usbcore: registered new interface driver zd1201
[ 1.290832] usbcore: registered new interface driver cdc_ether
[ 1.297058] usbcore: registered new interface driver cdc_eem
[ 1.303192] usbcore: registered new interface driver dm9601
[ 1.309051] cdc_ncm: 04-Aug-2011
[ 1.312591] usbcore: registered new interface driver cdc_ncm
[ 1.318542] Initializing USB Mass Storage driver...
[ 1.323852] usbcore: registered new interface driver usb-storage
[ 1.330169] USB Mass Storage support registered.
[ 1.335418] mousedev: PS/2 mouse device common for all mice
[ 1.341949] rtc-pcf8563 3-0051: chip found, driver version 0.4.3
[ 1.350250] rtc-pcf8563 3-0051: rtc core: registered rtc-pcf8563 as rtc0
[ 1.357421] i2c /dev entries driver
[ 1.361663] Linux video capture interface: v2.00
[ 1.366790] usbcore: registered new interface driver uvcvideo
[ 1.372833] USB Video Class driver (1.1.1)
[ 1.650726] OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 1.659149] cpuidle: using governor ladder
[ 1.663909] cpuidle: using governor menu
[ 1.670288] omap4_aes_mod_init: loading AM33X AES driver
[ 1.675964] omap4-aes omap4-aes: AM33X AES hw accel rev: 3.02
[ 1.682708] omap4_aes_probe: probe() done
[ 1.687103] omap4_sham_mod_init: loading AM33X SHA/MD5 driver
[ 1.693267] omap4-sham omap4-sham: AM33X SHA/MD5 hw accel rev: 4.03
[ 1.710815] omap4_sham_probe: probe() done
[ 1.717254] usbcore: registered new interface driver usbhid
[ 1.723144] usbhid: USB HID core driver
[ 1.727874] usbcore: registered new interface driver snd-usb-audio
[ 1.735900] ALSA device list:
[ 1.739013] No soundcards found.
[ 1.742584] oprofile: hardware counters not available
[ 1.747863] oprofile: using timer interrupt.
[ 1.752380] nf_conntrack version 0.5.0 (1924 buckets, 7696 max)
[ 1.759002] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 1.764709] TCP cubic registered
[ 1.768066] NET: Registered protocol family 17
[ 1.772735] can: controller area network core (rev 20090105 abi 8)
[ 1.779296] NET: Registered protocol family 29
[ 1.783966] can: raw protocol (rev 20090105)
[ 1.788421] can: broadcast manager protocol (rev 20090105 t)
[ 1.794403] Registering the dns_resolver key type
[ 1.799377] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 1.807403] ThumbEE CPU extension supported.
[ 1.811950] mux: Failed to setup hwmod io irq -22
[ 1.817504] Power Management for AM33XX family
[ 1.822387] Trying to load am335x-pm-firmware.bin (60 secs timeout)
[ 1.829071] Copied the M3 firmware to UMEM
[ 1.833465] Cortex M3 Firmware Version = 0x181
[ 1.839874] create_regulator: VDD1: Failed to create debugfs directory
[ 1.848266] smartreflex smartreflex: am33xx_sr_probe: Driver initialized
[ 1.861755] clock: disabling unused clocks to save power
[ 1.876800] mmc0: new high speed SDHC card at address 0002
[ 1.883270] mmcblk0: mmc0:0002 SD8GB 7.45 GiB
[ 1.890075] mmcblk0: p1 p2
[ 1.895477] Detected MACID=ec:24:b8:9c:c3:0
[ 1.900970] cpsw: Detected MACID = ec:24:b8:9c:c3:02
[ 1.908782] rtc-pcf8563 3-0051: setting system clock to 2018-03-01 14:14:59 UTC (1519913699)
[ 1.923339] kjournald starting. Commit interval 5 seconds
[ 1.933074] EXT3-fs (mmcblk0p2): using internal journal
[ 1.938537] EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode
[ 1.945800] VFS: Mounted root (ext3 filesystem) on device 179:2.
[ 1.952423] Freeing init memory: 236K
INIT: version 2.88 booting
Starting udev
Starting Bootlog daemon: bootlogd: cannot allocate pseudo tty: No such file or directory
bootlogd.
cat: can't open '/proc/boardname': No such file or directory
/etc/rcS.d/S39alsa-state: line 27: [: =: unary operator expected
ALSA: Restoring mixer settings...
Configuring network interfaces... /usr/sbin/alsactl: load_state:1686: No soundcards found...
[ 4.743530] net eth0: CPSW phy found : id is : 0x20005c90
done.
INIT: Entering runlevel: 5
Starting system message bus: dbus.
Starting telnet daemon.
Starting syslogd/klogd: done
Stopping Bootlog daemon: bootlogd.

已使用conf_disp_pll(80000000),并且pclk配置为了40M时钟信号,pinmux已正确配置。但是pclk没有信号输出,

[ 1.090118] da8xx_lcdc.0: alias fck already exists            
[ 1.095550] fb_probe!
[ 1.097961] da8xx_lcdc da8xx_lcdc.0: GLCD: Found Sharp_LCD121 panel
[ 1.116882] Console: switching to colour frame buffer device 100x37  

烦请TI工程师帮忙解决上述几句话是什么意思?PCLK没有信号输出和这几条信息有关系吗?哪些方面的配置会影响LCD PCLK的产生?

期待回复,谢谢!