[U-Boot-Users] usb storage support?
Hi, all,
Does u-boot support OHCI? README mentions that u-boot only support UHCI, however, there are some c files named "usb_ohci" in cpu directory. Does it mean u-boot also supports OHCI?
Does u-boot support write action on usb storage? I have surfed usb codes, but I only found some functions for reading from usb storage, no any functions for writing found. Is it true or just my misunderstanding?
Could someone kindly give me answer or tell me how or where can I get the answer?
Thanks in advance.
Hi,
Le Vendredi 09 Septembre 2005 10:06, YenJung Chang a écrit :
Does u-boot support OHCI? README mentions that u-boot only support UHCI, however, there are some c files named "usb_ohci" in cpu directory. Does it mean u-boot also supports OHCI?
tested on AT91RM9200, seems to work on Samsung ARM CPU and some PPC.
Does u-boot support write action on usb storage? I have surfed usb codes, but I only found some functions for reading from usb storage, no any functions for writing found. Is it true or just my misunderstanding?
I also only tested read capabilities on usb keys. I don't think u-boot can write on them.
Eric
In message 32653c9705090901068811803@mail.gmail.com you wrote:
Does u-boot support OHCI?
yes, on certain hardware.
README mentions that u-boot only support UHCI, however, there are some c files named "usb_ohci" in cpu directory. Does it mean u-boot also supports OHCI?
On that hardare, yes.
Does u-boot support write action on usb storage?
No.
I have surfed usb codes, but I only found some functions for reading from usb storage, no any functions for writing found. Is it true or just my misunderstanding?
At the moment ther eis no write support, enither in USB nor in any of the underlying file systems.
Best regards,
Wolfgang Denk
participants (3)
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Eric BENARD / Free -
Wolfgang Denk -
YenJung Chang