To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
While at it, dynamically allocate private driver struct.
There might be only a single instance of this driver,
but don't be a bad example for others.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Only the platform should configure pins to be used by the driver.
The driver must work independently from the settings.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
i.MX23 currently uses kHz as the unit for its clock handling and calculation
to avoid overflows when calculation with the internal 480 MHz PLL and its
fractional divider. This patch changes all routines to accept Hz and deliver
Hz as the clock unit.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The i.MX23 comes with a special UART dedicated for debugging purposes. This one
is mostly used for the console the user can reach.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Sascha Hauer
Juergen Beisert