linux-toradex.git/include/linux/serial_8250.h, branch v2.6.27.14

sm501: add uart support

2008-04-28T15:58:32+00:00

This patch extends the sm501 mfd with 8250 uart support. We're currently
doing this in the board specific r2d-1 code already, but it would be nice to
do move things into the mfd since it's more chip specific than board specific.

Signed-off-by: Magnus Damm 
Cc: Ben Dooks 
Cc: Paul Mundt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

8250.c: support specifying DW APB UARTs in device platform_data

2008-02-05T17:44:09+00:00

Allow the private_data field to be specified in platform_data for the
standard 8250/16550 UART.  This field is used by DW APB type UARTs and
without this patch it's only possible to set this field when registering
the port by hand.  If private_data is not set then the driver will
potentially oops with a NULL pointer dereference.

Signed-off-by: Will Newton 
Acked-by: Alan Cox 
Cc: Russell King 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Use resource_size_t for serial port IO addresses

2007-07-24T19:24:58+00:00

At present, various parts of the serial code use unsigned long to define
resource addresses.  This is a problem, because some 32-bit platforms have
physical addresses larger than 32-bits, and have mmio serial uarts located
above the 4GB point.

This patch changes the type of mapbase in both struct uart_port and struct
plat_serial8250_port to resource_size_t, which can be configured to be 64
bits on such platforms.  The mapbase in serial_struct can't safely be
changed, because that structure is user visible.

Signed-off-by: David Gibson 
Signed-off-by: Josh Boyer 
Cc: Russell King 
Cc: Paul Mackerras 
Cc: Jason Wessel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

serial: add early_serial_setup() back to header file

2007-07-18T15:38:22+00:00

early_serial_setup was removed from serial.h, but forgot to put in
serial_8250.h

Signed-off-by: Yinghai Lu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

serial: convert early_uart to earlycon for 8250

2007-07-16T16:05:35+00:00

Beacuse SERIAL_PORT_DFNS is removed from include/asm-i386/serial.h and
include/asm-x86_64/serial.h.  the serial8250_ports need to be probed late in
serial initializing stage.  the console_init=>serial8250_console_init=>
register_console=>serial8250_console_setup will return -ENDEV, and console
ttyS0 can not be enabled at that time.  need to wait till uart_add_one_port in
drivers/serial/serial_core.c to call register_console to get console ttyS0.
that is too late.

Make early_uart to use early_param, so uart console can be used earlier.  Make
it to be bootconsole with CON_BOOT flag, so can use console handover feature.
and it will switch to corresponding normal serial console automatically.

new command line will be:
	console=uart8250,io,0x3f8,9600n8
	console=uart8250,mmio,0xff5e0000,115200n8
or
	earlycon=uart8250,io,0x3f8,9600n8
	earlycon=uart8250,mmio,0xff5e0000,115200n8

it will print in very early stage:
	Early serial console at I/O port 0x3f8 (options '9600n8')
	console [uart0] enabled
later for console it will print:
	console handover: boot [uart0] -> real [ttyS0]

Signed-off-by: 
Cc: Andi Kleen 
Cc: Bjorn Helgaas 
Cc: Russell King 
Cc: Gerd Hoffmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Exar quad port serial

2006-12-07T16:39:35+00:00

This is on our "Envoy" boxes which we have, according to the documentation, an
"Exar ST16C554/554D Quad UART with 16-byte Fifo's".  The box also has two
other "on-board" serial ports and a modem chip.

The two on-board serial UARTs were being detected along with the first two
Exar UARTs.  The last two Exar UARTs were not showing up and neither was the
modem.

This patch was the only way I could the kernel to see beyond the standard four
serial ports and get all four of the Exar UARTs to show up.

[akpm@osdl.org: build fix]
Signed-off-by:  Paul B Schroeder 
Cc: Lennart Sorensen 
Acked-by: Alan Cox 
Cc: Russell King 
Cc: Greg KH 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[ARM] 3383/3: ixp2000: ixdp2x01 platform serial conversion

2006-03-25T23:03:13+00:00

Patch from Lennert Buytenhek

Add a PLAT8250_DEV_PLATFORM2, and convert the two ixdp2x01 CPLD serial
ports to use platform serial devices with ids PLAT8250_DEV_PLATFORM[12].
(The on-chip xscale UART is PLAT8250_DEV_PLATFORM, id #0.)

Signed-off-by: Lennert Buytenhek 
Signed-off-by: Russell King

[SERIAL] Make uart_port flags a bitwise type

2006-01-21T23:03:28+00:00

Same reasoning as commit 747c8a55946ed037bf7d62454c3c599c02af2262
but this time we're making uart_port flags a bitwise type - not
all of these flags correspond with the old ASYNC_ flags, so there
is the possibility for bugs if the wrong ASYNC_* constants are
used.  Always use UPF_* constants for uart_port->flags.

Signed-off-by: Russell King

[SERIAL] Support Au1x00 8250 UARTs using the generic 8250 driver.

2005-11-06T09:07:03+00:00

The offsets of the registers are in a different place, and
some parts cannot handle a full set of modem control signals.

Signed-off-by: Pantelis Antoniou 
Signed-off-by: Russell King

Create platform_device.h to contain all the platform device details.

2005-10-29T18:07:23+00:00

Convert everyone who uses platform_bus_type to include
linux/platform_device.h.

Signed-off-by: Russell King 
Acked-by: Greg Kroah-Hartman