Hi, 2011/1/10 Anand Gadiyar <gadiyar@xxxxxx>: > The SMSC 3320 USB PHY on the OMAP4 Pandaboard needs a 19.2 MHz > reference clock. This clock is provided from the OMAP4's fref_clk3 > pad. > > Recent changes to clock44xx_data.c made the clock framework aware > of the existence of these fref_clk[i] lines. If the option > CONFIG_OMAP_RESET_CLOCKS is enabled in the kernel, then the > clock framework will turn these clocks off during bootup. > > Explicitly request and keep this clock enabled at init for the > Pandaboard, so that the PHY receives this clock at all times. > > Reported-by: Ming Lei <tom.leiming@xxxxxxxxx> > Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx> > Cc: Benoit Cousson <b-cousson@xxxxxx> > Cc: Paul Walmsley <paul@xxxxxxxxx> > Cc: Tony Lindgren <tony@xxxxxxxxxxx> > --- > Tony, > > The clock database changes were merged just before Christmas, so > we did not detect this sooner. Would be nice to get this merged in > the -rc series, so that we get EHCI and ethernet functional on the Panda. > > Ming Lei, > > Could you please test this and confirm it fixes the issue for you? Yes, the patch does fix the issue on my panda board even CONFIG_OMAP_RESET_CLOCKS is enabled. thanks, -- Lei Ming -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
