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authorAnand Gadiyar <gadiyar@ti.com>2011-01-10 14:42:15 +0000
committerTony Lindgren <tony@atomide.com>2011-01-10 11:13:46 -0800
commit1740d483ba4d79f9fa6984dccd7152b6b208f1bf (patch)
tree83fe9290a4f231971da768351cced67e34e3e93b /arch/arm/mach-omap2/i2c.c
parent56a6a19dffda6b75cef8d4183c7c6ff650025cbd (diff)
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arm: omap4: pandaboard: turn on PHY reference clock at init
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@gmail.com> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/i2c.c')
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