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clk: at91: sckc: optimize boot time 

Assume that if the oscillator is enabled (OSC32EN bit is present), the
delay has already elapsed as the bootloader probably waited for the
oscillator to settle. This could waste up to 1.2s.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Alexandre Belloni 2016-09-20 22:58:31 +02:00 committed by Stephen Boyd
parent 4b13b6451a
commit 4135b7f8d4
1 changed files with 1 additions and 1 deletions
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2
drivers/clk/at91/sckc.c
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@ -69,7 +69,7 @@ static int clk_slow_osc_prepare(struct clk_hw *hw)
void __iomem *sckcr = osc->sckcr; void __iomem *sckcr = osc->sckcr;
u32 tmp = readl(sckcr); u32 tmp = readl(sckcr);
if (tmp & AT91_SCKC_OSC32BYP) if (tmp & (AT91_SCKC_OSC32BYP | AT91_SCKC_OSC32EN))
return 0; return 0;
writel(tmp | AT91_SCKC_OSC32EN, sckcr); writel(tmp | AT91_SCKC_OSC32EN, sckcr);