[U-Boot] [PATCH RFC] OMAP5: uEVM: Enable USB EHCI functionality (preliminary, not tested)

Tom Rini
2013-05-15T22:06:02Z

On Wed, May 15, 2013 at 06:55:24PM +0300, Lubomir Popov wrote:

> Prerequisites: appropriate patches to the USB EHCI and Eth
> drivers, and to the OMAP5 clock register definitions.
>
> Signed-off-by: Lubomir Popov <lpopov@mm-sol.com>
> ---
> Assumption is that this code shall run on TI 750-2628-21X
> hardware (also known as OMAP5432 ES2.0 PandaBoard5) - the
> GPIOs that I used used for HSIC reset correspond to that
> board. Looking at mux_data.h however, I'm somewhat concerned.
> All the uevm board files are inherited from the sEVM, which
> is a very different hardware platform, and I'm afraid that
> only changing the file names might not be sufficient.
>
> The patch is not tested yet due to lack of hardware. Tom,
> I'm hoping for your assistance.

OK, I applied:
$ git log --oneline master..
93460ef OMAP4/5: Add USB EHCI support
d18c49c OMAP5: Enable USB Ethernet support with LAN9730
15a4481 OMAP5: Enable access to auxclk registers
f307fc2 OMAP5: Power: Add more functionality to Palmas driver
efdf00c OMAP5: uEVM: Enable USB EHCI functionality (preliminary, not tested)
And added:
+#define CONFIG_USB_ULPI
+#define CONFIG_USB_ULPI_VIEWPORT_OMAP
to include/configs/omap5_uevm.h

And usb start/usb rescan don't see any devices.
OMAP5432 uEVM # usb start
(Re)start USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
scanning usb for ethernet devices... 0 Ethernet Device(s) found

Cable was plugged into the eth and a storage device was also plugged in.
I suspect that we need to set CONFIG_OMAP_EHCI_PHY1_RESET_GPIO /
CONFIG_OMAP_EHCI_PHY2_RESET_GPIO. I'm looking around for the schematic
so I can try and find that out.

--
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20130515/55944b2a/attachment.pgp>