Commit 4135b7f8 authored Sep 20, 2016 by Alexandre Belloni Committed by Stephen Boyd Sep 20, 2016

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>

parent 4b13b645

drivers/clk/at91/sckc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -69,7 +69,7 @@ static int clk_slow_osc_prepare(struct clk_hw *hw)
		void __iomem *sckcr = osc->sckcr;
		u32 tmp = readl(sckcr);

		if (tmp & AT91_SCKC_OSC32BYP)
		if (tmp & (AT91_SCKC_OSC32BYP \| AT91_SCKC_OSC32EN))
		return 0;

		writel(tmp \| AT91_SCKC_OSC32EN, sckcr);