user/sven/linux.git/include/linux/serial_8250.h, branch v3.0.50

serial: abstraction for 8250 legacy ports

2010-10-22T17:20:10Z

Not every platform that has generic legacy 8250 ports manages to have them clocked the right way or without errata. Provide a generic interface to allow platforms to override the default behaviour in a manner that dumps the complexity in *their* code not the 8250 driver. Signed-off-by: Alan Cox Signed-off-by: Dirk Brandewie Acked-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

8250: allow platforms to override PM hook.

2010-10-22T17:20:09Z

Add a hook for platforms to specify custom pm methods. Signed-off-by: Manuel Lauss Cc: Alan Cox Signed-off-by: Greg Kroah-Hartman

U6715 16550A serial driver support

2010-08-10T20:47:46Z

UART Features extract from STEricsson U6715 data-sheet (arm926 SoC for mobile phone): * Fully compatible with industry standard 16C550 and 16C450 from various manufacturers * RX and TX 64 byte FIFO reduces CPU interrupts * Full double buffering * Modem control signals include CTS, RTS, (and DSR, DTR on UART1 only) * Automatic baud rate selection * Manual or automatic RTS/CTS smart hardware flow control * Programmable serial characteristics: – Baud rate generation (50 to 3.25M baud) – 5, 6, 7 or 8-bit characters – Even, odd or no-parity bit generation and detection – 1, 1.5 or 2 stop bit generation * Independent control of transmit, receive, line status, data set interrupts and FIFOs * Full status-reporting capabilities * Separate DMA signaling for RX and TX * Timed interrupt to spread receive interrupt on known duration * DMA time-out interrupt to allow detection of end of reception * Carkit pulse coding and decoding compliant with USB carkit control interface [40] In 16550A auto-configuration, if the fifo size is 64 then it's an U6 16550A port Add set_termios hook & export serial8250_do_set_termios to change uart clock following baudrate Signed-off-by: Philippe Langlais Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

serial: 8250: add IRQ trigger support

2009-09-19T20:13:19Z

There is currently no provision for passing IRQ trigger flags for serial IRQs with triggering requirements (such as GPIO IRQs) This patch adds irqflags to plat_serial8250_port that can be passed from board file to reqest_irq() of 8250 driver Changes are backward compatible with boards passing UPF_SHARE_IRQ flag Tested on Zoom2 board that has IRQF_TRIGGER_RISING requirement for 8250 irq [Moved new flag to end to fix bugs in the original with the old_serial array -- Alan] Signed-off-by: Vikram Pandita Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

Serial: Allow port type to be specified when calling serial8250_register_port.

2009-01-02T18:19:43Z

Add flag value UPF_FIXED_TYPE which specifies that the UART type is known and should not be probed. For this case the UARTs properties are just copied out of the uart_config entry. This allows us to keep SOC specific 8250 probe code out of 8250.c. In this case we know the serial hardware will not be changing as it is on the same silicon as the CPU, and we can specify it with certainty in the board/cpu setup code. The alternative is to load up 8250.c with a bunch of OCTEON specific special cases in the probing code. Signed-off-by: David Daney Signed-off-by: Andrew Morton Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds

8250: Serial driver changes to support future Cavium OCTEON serial patches.

2009-01-02T18:19:43Z

In order to use Cavium OCTEON specific serial i/o drivers, we first patch the 8250 driver to use replaceable I/O functions. Compatible I/O functions are added for existing iotypeS. An added benefit of this change is that it makes it easy to factor some of the existing special cases out to board/SOC specific support code. The alternative is to load up 8250.c with a bunch of OCTEON specific iotype code and bug work-arounds. Signed-off-by: David Daney Signed-off-by: Tomaso Paoletti Signed-off-by: Andrew Morton Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds

sm501: add uart support

2008-04-28T15:58:32Z

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

2008-02-05T17:44:09Z

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

2007-07-24T19:24:58Z

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

2007-07-18T15:38:22Z

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