Re: [PATCH] arm: omap4: pandaboard: turn on PHY reference clock atinit

[Paul Walmsley]

On Mon, 10 Jan 2011, Anand Gadiyar wrote:

> 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>

Reviewed-by: Paul Walmsley <paul@xxxxxxxxx>


- Paul
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