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* [U-Boot] Boot from USB support for Kirkwood SOC
@ 2009-06-10  9:53 Prafulla Wadaskar
  2009-06-11  7:20 ` xiangfu
  0 siblings, 1 reply; 9+ messages in thread
From: Prafulla Wadaskar @ 2009-06-10  9:53 UTC (permalink / raw)
  To: u-boot

Dear Remy Bohmer

I am going to start "boot from USB Support" development for kirkwood.
To sync with current USB framework in U-boot, and to reduce some rework at my side (since I am new to this driver).
May you please provide some guidelines/howto this regard?

FYI below is details about Kirkwood USB controller:  

Kirkwood contains a Universal Serial Bus (USB 2.0) port that includes an embedded USB 2.0 PHY.
The USB 2.0 interface contains a single dual-role controller that can act as a host or a peripheral
controller (USB controller). A bridge connects the controller to the internal Mbus interface (USB
bridge).
Embedded USB 2.0 PHY features include:
?? 480 Mbps High Speed (HS)/ 12 Mbps Full Speed (FS) and 1.5 Mbps Low Speed (LS) serial data
transmission rates
?? Synchronization/End-of-Packet (SYNC/EOP) generation and checking
?? Data and clock recovery from serial stream on the USB
?? Non Return to Zero Invert (NRZI) encoding/decoding with bit stuffing/unstuffing
?? Bit stuff error detections
?? Bit stuffing/unstuffing; bit stuff error detection
?? Holding registers to stage transmit and receive data
?? Supports USB 2.0 Test Modes
?? Ability to switch between FS and HS terminations/signaling
?? For more details, refer to the controller specification document USB-HS High-Speed
Controller Core Reference.

Regards..
Prafulla . .

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2009-06-16 15:52 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-06-10  9:53 [U-Boot] Boot from USB support for Kirkwood SOC Prafulla Wadaskar
2009-06-11  7:20 ` xiangfu
2009-06-11  7:42   ` Prafulla Wadaskar
2009-06-11  7:50     ` xiangfu
2009-06-11  8:01   ` Wolfgang Denk
2009-06-11  8:10     ` xiangfu
2009-06-15  2:27     ` [U-Boot] MAKEALL, don't have other cross compile xiangfu
2009-06-15  9:44       ` Wolfgang Denk
2009-06-16 15:52         ` xiangfu

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