Treewide: remove address of the Free Software Foundation ...

The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

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

serial drivers: remove unused type_data ...

Several serial drivers set the type_data field without ever using it,
so just remove it.

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

uart drivers: use xzalloc instead of xmalloc ...

The flags in struct console_device have to be initialized
to zero. Otherwise the following can happen:

- console_register sets the initial baudrate of a new console
  before we set the global console init state to CONSOLE_INIT_FULL.
- In console_baudrate_set we test whether the current console is
  active which may be true because of unitialized flags.
- we then call getc() to wait for the user to accept the new settings
  and we are stuck because of the CONSOLE_UNINITIALIZED state
  we will never get anything from getc().

Looking back this explains some cases for me when barebox refused
to start and I really wonder why this did not become a more visible
problem before.

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

introduce io.h ...

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>

nios2/altera_serial_jtag: Switch to resources ...

Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add Altera JTAG UART driver ...

Add Altera JTAG UART driver

I removed the CONFIG_ALTERA_JTAG_UART_BYPASS.

Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>