The scu_power_mode function can be used on UP builds as it drives signals
to an SOC power controller. So make it selectable for !SMP.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add a function to set the SCU low-power mode for SMP CPUs. This
centralizes this functionality rather than having to expose the
SCU register definitions to each platform.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
If Linux is running in non-secure mode, this register may have been
already initialised and writing to the control register not allowed.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
On MP systems, the data loaded by CPU0 before the SCU was initialised
may not be visible to the other CPUs.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This also includes the following compile fix:
This patch includes 'asm/cacheflush.h' which is needed to use
'flush_cache_all()' function.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rob Herring