when I use the kernel from the demo(ftp://www.at91.com/pub/demo/linux4sam_2 ... 45ekes.zip), myboard can find usb/sd/audio success.

Starting kernel ...
Uncompressing Linux.............................................................................................................. done, booting the kernel.
Linux version 2.6.30 (nferre@bendor) (gcc version 4.2.4) #1 Wed Mar 10 00:15:46 CET 2010
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: Atmel AT91SAM9G45-EKES
...
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
...
Driver 'sd' needs updating - please use bus_type methods
...
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
atmel-ehci atmel-ehci: Atmel EHCI UHP HS
atmel-ehci atmel-ehci: new USB bus registered, assigned bus number 1
atmel-ehci atmel-ehci: irq 22, io mem 0x00800000
atmel-ehci atmel-ehci: USB 2.0 started, EHCI 1.00
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: Atmel EHCI UHP HS
usb usb1: Manufacturer: Linux 2.6.30 ehci_hcd
usb usb1: SerialNumber: atmel-ehci
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
at91_ohci at91_ohci: AT91 OHCI
at91_ohci at91_ohci: new USB bus registered, assigned bus number 2
at91_ohci at91_ohci: irq 22, io mem 0x00700000
usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: AT91 OHCI
usb usb2: Manufacturer: Linux 2.6.30 ohci_hcd
usb usb2: SerialNumber: at91
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
atmel_usba_udc atmel_usba_udc: MMIO registers at 0xfff78000 mapped at c885c000
atmel_usba_udc atmel_usba_udc: FIFO at 0x00600000 mapped at c8900000

at_hdmac at_hdmac: Atmel AHB DMA Controller ( cpy slave ), 8 channels
Advanced Linux Sound Architecture Driver Version 1.0.20.
atmel_ac97c atmel_ac97c.0: Atmel AC97 controller at 0xc8880000, irq = 24
ALSA device list:
#0: Atmel AC97 controller

atmel_mci atmel_mci.0: Using dma0chan0 for DMA transfers
atmel_mci atmel_mci.0: Atmel MCI controller at 0xfff80000 irq 11, 1 slots
atmel_mci atmel_mci.1: Using dma0chan1 for DMA transfers
atmel_mci atmel_mci.1: Atmel MCI controller at 0xfffd0000 irq 29, 1 slots
Empty flash at 0x00c50bb0 ends at 0x00c51000

mmc0: host does not support reading read-only switch. assuming write-enable.
mmc0: new SD card at address 0002
mmcblk0: mmc0:0002 SD 1.87 GiB
mmcblk0: p1 p2

# lsusb
Bus 002 Device 001: ID 1d6b:0001
Bus 001 Device 001: ID 1d6b:0002


When I use the kernel I compiled from souce codes following the guide of "http://www.at91.com/linux4sam/bin/view/Linux4SAM/LinuxKernel", myboard cannot drive usb/sd/audio.

wget linux-2.6.30.tar.bz2
tar xvjf linux-2.6.30.tar.bz2
cd linux-2.6.30
wget 2.6.30-at91.patch.gz
wget 2.6.30-at91-exp.4.tar.gz
zcat 2.6.30-at91.patch.gz | patch -p1
zcat 2.6.30-at91-exp.4.tar.gz | patch -p1
wget at91sam9g45ekes_defconfig
cp at91sam9g45ekes_defconfig .config
make ARCH=arm oldconfig
make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- menuconfig
make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- clean
make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage



#dmesg
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
at91_ohci at91_ohci: AT91 OHCI
at91_ohci at91_ohci: new USB bus registered, assigned bus number 1
at91_ohci at91_ohci: irq 22, io mem 0x00700000
at91_ohci at91_ohci: init err (00000000 0000)
ohci_hcd: can't start at91
at91_ohci at91_ohci: startup error -75
at91_ohci at91_ohci: USB bus 1 deregistered
at91_ohci: probe of at91_ohci failed with error -75
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
atmel_usba_udc atmel_usba_udc: MMIO registers at 0xfff78000 mapped at c885c000
atmel_usba_udc atmel_usba_udc: FIFO at 0x00600000 mapped at c8900000
AT91SAM9 login: root
# lsusb
#

Advanced Linux Sound Architecture Driver Version 1.0.20.
ALSA device list:
No soundcards found.


Thanks.

I give wrong patch :(
It's ok now.

Don't "zcat 2.6.30-at91-exp.4.tar.gz | patch -p1"
But:
tar xzf 2.6.30-at91-exp.4.tar.gz
for p in 2.6.30-at91-exp.4/*; do patch -p1 < $p ; done