On Thu, Mar 12, 2009 at 5:50 PM, Remy Bohmer linux@bohmer.net wrote:
Hello,
Please don't top post.
A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? (see http://www.netmeister.org/news/learn2quote.html)
I'm aware of the top post irritant, nonetheless I employ some discretion on short emails. Don't worry, I wouldn't repeat it :).
2009/3/12 E Robertson e.robertson.svg@gmail.com:
I'm using git source from a few weeks back, sometime early part of last month. Have those changes merged or are they somewhere else?
Okay, you are quite up-to-date, so you are not using an ancient version :-), it worked in versions like 2008.10 (if PLLB is configured properly, bootstrap code did it wrong, see also cpu/arm926ejs/at91/usb.c of git), maybe there is some regression here. Unfortunately I do not have the hardware so I cannot verify it, or debug it...
Besides, there are still USB sticks that do not work at all, have you tried a different stick already?
Strange, in the logging I see that it only seems to communicate with the roothub only, it never communicates to the device at all, so my first guess would be the PLLB not running, but that was repaired somewhere early this year in a recent git... Maybe you can verify if it is running and all peripheral clocks are available?
I revisit these and it looked like my UHP power wasn't enabled. I thought I did this in the Bootstrap code but apparently not:
at91_sys_write(AT91_PMC_PCER, (1 << AT91SAM9263_ID_PIOA) | (1<<AT91SAM9263_ID_UHP)); /* Enable VBus on UHP ports */ at91_set_gpio_output(AT91_PIN_PA21, 1); at91_set_gpio_output(AT91_PIN_PA24, 1);
One thing I never understood is that after a power cycle with a usb memory stick plugged in, I always have to start and restart the usb probe to recognize the storage device. This happened in a previous version of u-boot (like 1.2.0) and it's also the case with the current source. Is their a reason for that? Perhaps an inadequate peripheral reset?