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96a5d18bc1
linux/drivers/tty
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Soeren Grunewald 96a5d18bc1 serial: 8250_pci: Add support for 16 port Exar boards 
The Exar XR17V358 chip usually provides only 8 ports. But two chips can be
combined to act as a single 16 port chip. Therefor one chip is configured
as master the second as slave by connecting the mode pin to VCC (master)
or GND (slave).

Then the master chip is reporting a different device-id depending on
whether a slave is detected or not. The UARTs 8-15 are addressed from
0x2000-0x3fff. So the offset of 0x400 from UART to UART can be used to
address all 16 ports as before.

See: https://www.exar.com/common/content/document.ashx?id=1587 page 11

Signed-off-by: Soeren Grunewald <soeren.grunewald@desy.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-28 20:22:31 +02:00
..
hvc tty/hvc_opal: constify of_device_id array 2015-03-26 22:49:10 +01:00
ipwireless Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-04-14 09:50:27 -07:00
serial serial: 8250_pci: Add support for 16 port Exar boards 2015-04-28 20:22:31 +02:00
vt tty: Use static attribute groups for sysfs entries 2015-03-26 16:10:10 +01:00
amiserial.c TTY: fix misspelling of current function in string 2015-01-09 14:38:15 -08:00
bfin_jtag_comm.c TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation 2015-03-07 03:44:14 +01:00
cyclades.c
ehv_bytechan.c tty: remove unused variable sprop 2015-02-03 15:52:13 -08:00
goldfish.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-04-14 09:50:27 -07:00
isicom.c tty/isicom: fix big-endian compile warning 2015-02-02 10:11:25 -08:00
Kconfig ttyFDC: Implement KGDB IO operations. 2015-03-31 12:04:13 +02:00
Makefile TTY: Add MIPS EJTAG Fast Debug Channel TTY driver 2015-03-31 12:04:12 +02:00
metag_da.c
mips_ejtag_fdc.c ttyFDC: Implement KGDB IO operations. 2015-03-31 12:04:13 +02:00
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c n_gsm: Drop unneeded cast on netdev_priv 2015-04-10 14:43:48 +02:00
n_hdlc.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c n_tty: Fix signal handling flushes 2015-02-02 10:11:27 -08:00
nozomi.c
pty.c n_tty: Fix signal handling flushes 2015-02-02 10:11:27 -08:00
rocket_int.h
rocket.c TTY: fix misspelling of current function in string 2015-01-09 14:38:15 -08:00
rocket.h
synclink_gt.c
synclink.c
synclinkmp.c
sysrq.c workqueue: dump workqueues on sysrq-t 2015-03-09 09:22:28 -04:00
tty_audit.c
tty_buffer.c pty: Fix buffer flush deadlock 2015-02-02 10:11:27 -08:00
tty_io.c tty: clean up the tty time logic a bit 2015-03-26 23:10:27 +01:00
tty_ioctl.c tty: Re-add external interface for tty_set_termios() 2015-04-28 14:26:20 +02:00
tty_ldisc.c
tty_ldsem.c
tty_mutex.c tty: Make lock subclasses available for other tty locks 2015-02-02 10:11:27 -08:00
tty_port.c