korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-13 22:56:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

clk: at91: sckc: optimize boot time

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/clk/at91/sckc.c
View File

@ -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);