From 7d6a07d123b62bf4fa71867420c23da3ca36c995 Mon Sep 17 00:00:00 2001 From: David Daney Date: Fri, 2 Jan 2009 13:49:47 +0000 Subject: 8250: Serial driver changes to support future Cavium OCTEON serial patches. 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 --- include/linux/serial_8250.h | 2 ++ include/linux/serial_core.h | 2 ++ 2 files changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 3d37c94abbc..77d83d929f2 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -28,6 +28,8 @@ struct plat_serial8250_port { unsigned char iotype; /* UPIO_* */ unsigned char hub6; upf_t flags; /* UPF_* flags */ + unsigned int (*serial_in)(struct uart_port *, int); + void (*serial_out)(struct uart_port *, int, int); }; /* diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 2395969faa0..60061f44f3d 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -248,6 +248,8 @@ struct uart_port { spinlock_t lock; /* port lock */ unsigned long iobase; /* in/out[bwl] */ unsigned char __iomem *membase; /* read/write[bwl] */ + unsigned int (*serial_in)(struct uart_port *, int); + void (*serial_out)(struct uart_port *, int, int); unsigned int irq; /* irq number */ unsigned int uartclk; /* base uart clock */ unsigned int fifosize; /* tx fifo size */ -- cgit v1.2.3-70-g09d2