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[ARM] 3592/1: AT91RM9200 Serial driver update

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Patch from Andrew Victor

This patch includes a number of updates to the AT91RM9200 serial driver.

Changes include:
1. Conversion to a platform_driver.  [Ivan Kokshaysky]
2. Replaced all references to AT91RM9200 with AT91.  This driver can now
also be used for the AT91SAM9216.
3. Allow TIOCM_LOOP to configure local loopback mode.
4. Cleaned up the 'read_status_mask' usage and interrupt handler code.
[Chip Coldwell]
5. Suspend/resume support.  [David Brownell]

There are a few 'unused variable' warning when compiling this - I
removed the new DMA support to keep this first patch simpler.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor
2006-06-19 19:53:19 +01:00
committed by Russell King
parent 82dc0772a8
commit afefc4158f
4 changed files with 293 additions and 197 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/serial/Kconfig
+9 -8
View File
@@ -300,21 +300,22 @@ config SERIAL_AMBA_PL011_CONSOLE
kernel at boot time.)
config SERIAL_AT91
bool "AT91RM9200 serial port support"
depends on ARM && ARCH_AT91RM9200
bool "AT91RM9200 / AT91SAM9261 serial port support"
depends on ARM && (ARCH_AT91RM9200 || ARCH_AT91SAM9261)
select SERIAL_CORE
help
This enables the driver for the on-chip UARTs of the AT91RM9200
processor.
This enables the driver for the on-chip UARTs of the Atmel
AT91RM9200 and AT91SAM926 processor.
config SERIAL_AT91_CONSOLE
bool "Support for console on AT91RM9200 serial port"
bool "Support for console on AT91RM9200 / AT91SAM9261 serial port"
depends on SERIAL_AT91=y
select SERIAL_CORE_CONSOLE
help
Say Y here if you wish to use a UART on the AT91RM9200 as the system
console (the system console is the device which receives all kernel
messages and warnings and which allows logins in single user mode).
Say Y here if you wish to use a UART on the Atmel AT91RM9200 or
AT91SAM9261 as the system console (the system console is the device
which receives all kernel messages and warnings and which allows
logins in single user mode).
config SERIAL_AT91_TTYAT
bool "Install as device ttyAT0-4 instead of ttyS0-4"
drivers/serial/at91_serial.c
+279 -182
View File
File diff suppressed because it is too large Load Diff
include/asm-arm/mach/serial_at91rm9200.h → include/asm-arm/mach/serial_at91.h
+3 -5
View File
@@ -1,5 +1,5 @@
/*
* linux/include/asm-arm/mach/serial_at91rm9200.h
* linux/include/asm-arm/mach/serial_at91.h
*
* Based on serial_sa1100.h by Nicolas Pitre
*
@@ -15,7 +15,7 @@ struct uart_port;
* This is a temporary structure for registering these
* functions; it is intended to be discarded after boot.
*/
struct at91rm9200_port_fns {
struct at91_port_fns {
void (*set_mctrl)(struct uart_port *, u_int);
u_int (*get_mctrl)(struct uart_port *);
void (*enable_ms)(struct uart_port *);
@@ -26,11 +26,9 @@ struct at91rm9200_port_fns {
};
#if defined(CONFIG_SERIAL_AT91)
void at91_register_uart_fns(struct at91rm9200_port_fns *fns);
void at91_register_uart(int idx, int port);
void at91_register_uart_fns(struct at91_port_fns *fns);
#else
#define at91_register_uart_fns(fns) do { } while (0)
#define at91_register_uart(idx,port) do { } while (0)
#endif
include/linux/serial_core.h
+2 -2
View File
@@ -67,8 +67,8 @@
/* Parisc type numbers. */
#define PORT_MUX 48
/* Atmel AT91RM9200 SoC */
#define PORT_AT91RM9200 49
/* Atmel AT91xxx SoC */
#define PORT_AT91 49
/* Macintosh Zilog type numbers */
#define PORT_MAC_ZILOG 50 /* m68k : not yet implemented */