Move pxa_clear_reset_source() declaration to a header file where the
file implementing it can see it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add the pxa3xx architecture, for pxa300, pxa310 and pxa320 SoCs.
This includes :
 - the registers
 - the cpu type
 - the reset source handling
 - a minimal set of clocks
 - pin control definitions
   In this last case, the big mfp-pxaxxx.h files were dropped, forcing
   board developers to use MFP_LPM_* macros cunningly.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add the capability for the PXA architecture to poweroff.

As there is no true poweroff, ie. the power regulator is not available
for shut off from the core, the poweroff puts the SoC into a deep sleep
mode (mode 7), where almost no current is sunk.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

The core support was brought by Marc and Sascha.
The cache choice was fixed by Luotao Fu.
Some gpio and devices addons were provided by Robert.

Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>