Hi,
We have the USB1.1 bus configured in the kernel (and eventually it will connect to an ACM device). We are also using the USB2.0 bus as a host only (no device/OTG needs) with a hub and additional HID and mass storage devices on the hub. During boot it looks like the OHCI bus is brought up and then nearly immediately deregistered and removed. It this something that has been seen before? Once in linux there is still a /sys/devices/platform/ohci.0/ entry but I cannot seem to get that bus enabled.
Thanks,
Scott Battocchi
Below is the boot process on the debug port:
SF: Detected M25P64 with page size 256, total 8 MiB
8192 KiB M25P64 at 0:0 is now current device
## Booting kernel from Legacy Image at c0700000 ...
Image Name: Linux-2.6.37
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2104000 Bytes = 2 MiB
Load Address: c0008000
Entry Point: c0008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Linux version 2.6.37 (todd@Dev-laptop) (gcc version 4.5.2 (Sourcery CodeBench 2011.03-65) ) #158 PREEMPT Mon Dec 12 14:41:39 EST 2011
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: DaVinci DA850/OMAP-L138/AM18x EVM
Memory policy: ECC disabled, Data cache writeback
DaVinci da850/omap-l138/am18x variant 0x1
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 24320
Kernel command line: console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw ip=192.168.1.201 mem=32M@0xc0000000 mem=64M@0xc4000000
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 32MB 64MB = 96MB total
Memory: 92928k/92928k available, 5376k reserved, 0K highmem
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
DMA : 0xff000000 - 0xffe00000 ( 14 MB)
vmalloc : 0xc8800000 - 0xfea00000 ( 866 MB)
lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
modules : 0xbf000000 - 0xc0000000 ( 16 MB)
.init : 0xc0008000 - 0xc002b000 ( 140 kB)
.text : 0xc002b000 - 0xc0415000 (4008 kB)
.data : 0xc0416000 - 0xc043f720 ( 166 kB)
SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptable hierarchical RCU implementation.
RCU-based detection of stalled CPUs is disabled.
Verbose stalled-CPUs detection is disabled.
NR_IRQS:245
Console: colour dummy device 80x30
Calibrating delay loop... 149.50 BogoMIPS (lpj=747520)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
DaVinci: 144 gpio irqs
regulator: core version 0.5
regulator: dummy:
NET: Registered protocol family 16
--- Entered the UI Expander setup function ---
OMAP-L138 RMII/NAND flags set.
Disabled NOR.
Setting emac rmii_en to 1 **************
WARNING: both McASP and McBSP are enabled, but they share pins.
Only McASP will work. If you want McBSP support, disable McASP.
GPIO6[6] IRQ= 203
GPIO6[8] IRQ= 205
GPIO6[9] IRQ= 206
GPIO7[8] IRQ= 221
GPIO7[9] IRQ= 222
GPIO7[10] IRQ= 223
GPIO7[12] IRQ= 225
GPIO7[13] IRQ= 226
da850_evm_init: eHRPWM module 0 and 1 disabled forPSE.
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
pca953x 1-0020: failed reading register
pca953x 1-0021: failed reading register
regulator: VDCDC1: 3200 <--> 3300 mV at 3300 mV
regulator: VDCDC2: 1750 <--> 3300 mV at 3300 mV
regulator: VDCDC3: 950 <--> 1350 mV at 1200 mV
regulator: LDO1: 1800 mV
regulator: LDO2: 1150 <--> 1300 mV at 1200 mV
i2c-gpio i2c-gpio.1: using pins 20 (SDA) and 21 (SCL)
Advanced Linux Sound Architecture Driver Version 1.0.23.
Switching to clocksource timer0_1
musb-hdrc: version 6.0, host, debug=0
musb-hdrc musb-hdrc: dma type: dma-cppi41
Waiting for USB PHY clock good...
musb-hdrc musb-hdrc: MUSB HDRC host driver
musb-hdrc musb-hdrc: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
musb-hdrc musb-hdrc: USB Host mode controller at fee00000 using DMA, IRQ 58
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
EMAC: RMII PHY configured, MII PHY will not be functional
McBSP:Probed McBSP1
JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
JFFS2: default compression mode: priority
JFS: nTxBlock = 726, nTxLock = 5808
msgmni has been set to 181
io scheduler noop registered (default)
Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x1c42000 (irq = 25) is a AR7
serial8250.0: ttyS1 at MMIO 0x1d0c000 (irq = 53) is a AR7
serial8250.0: ttyS2 at MMIO 0x1d0d000 (irq = 61) is a AR7
console [ttyS2] enabled
brd: module loaded
at24 1-0050: 32768 byte 24c256 EEPROM (writable)
usb 1-1: new full speed USB device using musb-hdrc and address 2
ONFI flash detected
ONFI param page 0 valid
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xdc (Micron NAND 512MiB 3,3V 8-bit)
Creating 5 MTD partitions on "davinci_nand.1":
0x000000000000-0x000004000000 : "u-boot env"
0x000004000000-0x000004020000 : "UBL"
0x000004020000-0x0000040a0000 : "u-boot"
0x000000200000-0x000000600000 : "kernel"
0x000000600000-0x000020000000 : "filesystem"
usb 1-1: device descriptor read/64, error -71
davinci_nand davinci_nand.1: controller rev. 2.5
spi_davinci spi_davinci.0: DMA: supported
spi_davinci spi_davinci.0: DMA: RX channel: 14, TX channel: 15, event queue: 0
sc16is7x2 spi0.2: sc16is7x2 at CS2 (irq 203), 2 UARTs, 8 GPIOs
eser0, eser1, gpiochip180
sc16is7x2 spi0.3: sc16is7x2 at CS3 (irq 205), 2 UARTs, 8 GPIOs
eser2, eser3, gpiochip188
usb 1-1: device descriptor read/64, error -71
sc16is7x2 spi0.4: sc16is7x2 at CS4 (irq 206), 2 UARTs, 8 GPIOs
eser4, eser5, gpiochip196
spi_davinci spi_davinci.0: Controller at 0xfec41000
davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
davinci_mdio davinci_mdio.0: detected phy mask fffffffc
davinci_mdio.0: probed
davinci_mdio davinci_mdio.0: phy[0]: device 0:00, driver SMSC LAN8710/LAN8720
davinci_mdio davinci_mdio.0: phy[1]: device 0:01, driver SMSC LAN8710/LAN8720
console [netcon0] enabled
netconsole: network logging started
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci ohci.0: DA8xx OHCI
ohci ohci.0: new USB bus registered, assigned bus number 2
Waiting for USB PHY clock good...
ohci ohci.0: irq 59, io mem 0x01e25000
usb 1-1: new full speed USB device using musb-hdrc and address 3
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
ohci ohci.0: remove, state 1
usb usb2: USB disconnect, address 1
ohci ohci.0: USB bus 2 deregistered
usbcore: registered new interface driver cdc_acm
cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
input: TPS6507x Touchscreen as /devices/platform/i2c-gpio.1/i2c-1/1-0048/input/input0
omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
usb 1-1: device descriptor read/64, error -71
omap_rtc: RTC power up reset detected
omap_rtc: already running
i2c /dev entries driver
watchdog watchdog: heartbeat 60 sec
cpuidle: using governor ladder
cpuidle: using governor menu
davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
1-0018 supply IOVDD not found, using dummy regulator
1-0018 supply DVDD not found, using dummy regulator
1-0018 supply AVDD not found, using dummy regulator
1-0018 supply DRVDD not found, using dummy regulator
asoc: tlv320aic3x-hifi <-> davinci-mcasp.0 mapping ok
ALSA device list:
#0: DA850/OMAP-L138 EVM
TCP cubic registered
NET: Registered protocol family 17
regulator_init_complete: incomplete constraints, leaving LDO2 on
regulator_init_complete: incomplete constraints, leaving LDO1 on
regulator_init_complete: incomplete constraints, leaving VDCDC3 on
regulator_init_complete: incomplete constraints, leaving VDCDC2 on
regulator_init_complete: incomplete constraints, leaving VDCDC1 on
davinci_emac_probe: using random MAC addr: d6:8a:77:3d:7e:a8
omap_rtc omap_rtc: setting system clock to 2011-06-22 06:47:49 UTC (1308725269)
mmc0: new high speed SDHC card at address e624
mmcblk0: mmc0:e624 SU32G 29.7 GiB
mmcblk0: p1 p2
usb 1-1: device descriptor read/64, error -71
usb 1-1: new full speed USB device using musb-hdrc and address 4
davinci_mdio davinci_mdio.0: resetting idled controller
net eth0: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=0:00, id=7c0f1)
usb 1-1: device not accepting address 4, error -71
usb 1-1: new full speed USB device using musb-hdrc and address 5
usb 1-1: device not accepting address 5, error -71
hub 1-0:1.0: unable to enumerate USB device on port 1
IP-Config: Guessing netmask 255.255.255.0
IP-Config: Complete:
device=eth0, addr=192.168.1.201, mask=255.255.255.0, gw=255.255.255.255,
host=192.168.1.201, domain=, nis-domain=(none),
bootserver=255.255.255.255, rootserver=255.255.255.255, rootpath=
EXT3-fs: barriers not enabled
kjournald starting. Commit interval 5 seconds
EXT3-fs (mmcblk0p2): using internal journal
EXT3-fs (mmcblk0p2): recovery complete
EXT3-fs (mmcblk0p2): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) on device 179:2.
Freeing init memory: 140K
INIT: version 2.86 booting
Please wait: booting...
Error opening /dev/fb0: No such device or address
Starting udev
udevd (571): /proc/571/oom_adj is deprecated, please use /proc/571/oom_score_adj instead.
udev: starting version 141
PHY: 0:00 - Link is Up - 100/Full
Remounting root file system...
Caching udev devnodes
Populating dev cachemv: cannot rename '/tmp/devices': No such file or directory
logger: mount: mount point /proc/bus/usb does not exist
ALSA: Restoring mixer settings...
Configuring network interfaces... done.
Setting up IP spoofing protection: rp_filter.
INIT: Entering runlevel: 5