Santosh Shilimkar <santosh.shilimkar@xxxxxx> writes:
> When MPUSS hits off-mode e, L2 cache is lost. This patch adds L2X0
> necessary maintenance operations and context restoration in the
> low power code.
>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
> Reviewed-by: Kevin Hilman <khilman@xxxxxx>
> ---
> arch/arm/mach-omap2/omap4-mpuss-lowpower.c | 11 +++++
> arch/arm/mach-omap2/omap4-sar-layout.h | 2 +
> arch/arm/mach-omap2/sleep44xx.S | 64 ++++++++++++++++++++++++++++
> 3 files changed, 77 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/omap4-mpuss-lowpower.c b/arch/arm/mach-omap2/omap4-mpuss-lowpower.c
> index a30f19b..bff768f 100644
> --- a/arch/arm/mach-omap2/omap4-mpuss-lowpower.c
> +++ b/arch/arm/mach-omap2/omap4-mpuss-lowpower.c
> @@ -49,6 +49,7 @@
> #include <asm/system.h>
> #include <asm/irq.h>
> #include <asm/hardware/gic.h>
> +#include <asm/hardware/cache-l2x0.h>
>
> #include <plat/omap44xx.h>
> #include <mach/omap4-common.h>
> @@ -341,6 +342,7 @@ int __init omap4_mpuss_init(void)
> {
> struct omap4_cpu_pm_info *pm_info;
> u8 i;
> + u32 val;
This will cause an 'unused variable' compiler warning when
!CONFIG_CACHE_L2X0
[...]
Kevin
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