ARM: imx: add cpuidle support for i.mx6ul

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This patch enables cpuidle driver for i.MX6UL, it
reuses i.MX6SX's cpuidle driver, 3 levels of cpuidle
supported:

1. ARM WFI;
2. SOC in WAIT mode;
3. SOC in WAIT mode + ARM power off.

As i.MX6UL has cortex-A7 CORE with an internal L2
cache, so flushing it before powering down ARM platform
is necessary, flush_cache_all() in last step of cpu_suspend
has very small overhead, just call it to avoid cache
type check for different platforms.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

...

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Anson Huang 2016-08-29 23:41:12 +08:00 • committed by Shawn Guo

parent 6ae44aa651

commit 547e8f5269

2 changed files with 13 additions and 0 deletions

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10

arch/arm/mach-imx/cpuidle-imx6sx.c

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3

arch/arm/mach-imx/mach-imx6ul.c

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