Hi,
On our omap3530 based custom board we are using usb3317 chip for host interface.We taken beagle board (rev-c5) usb3322 circuit as a reference .The following are differences between beagle board and our board. (In both boards tps2061 IC used for the vbus power supply ) . In beagle board usb is detecting in u-boot .But in our board it's not detecting > We identified the following differences
Difference :
In beagle board USB power enable pin for tps2061 is connected to power management IC(tps65950).
OUR BOARD ----> In our board we connected from usb3317 IC (pin no : 7(CPEN)) to tp26061 power enable and we connected same to gpio_126
Can we use as described above for our board ?
In power management IC is there any program related to USB power enable pin ?
Difference :
In beagle board tps2061 pin no:5 OC connected to power management ic
In our board we connected to omap3530 gpio167.
Can we use as described above for our board ?
In power management IC is there any program related to USB power enable pin ?
Except these two hardware changes rest of all pin connections same as beagle board
And from usb3317 datasheet we came to know that it works with 26MHz reference clock. But reference clock we are getting from processor is 60MHz to usb ic .
How can we configure reference clock to 26MHz ?
In beagle board :
On our u-boot promt when we typed usb reset command we are getting 1 device found.Then we connected usb to board and again we did did usb reset command and we are getting 2 devices found and mass storage device found.
In our board we tried same thing . It always saying 1 device found . Zero mass storage device found .
And we are getting 5V output for the vbus ..
Can anyone please help us to solve the issue.
Thanks
bhimesh
