[PATCH] atmel_serial: Support AVR32

Make CONFIG_SERIAL_ATMEL selectable on AVR32 and #ifdef out some ARM-
specific code in the driver.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 16 insertions, 12 deletions

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index ba19ab571f9..b0d502622d9 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -301,31 +301,31 @@ config SERIAL_AMBA_PL011_CONSOLE
 
 config SERIAL_ATMEL
         bool "AT91 / AT32 on-chip serial port support"
-        depends on ARM && (ARCH_AT91RM9200 || ARCH_AT91SAM9261)
+        depends on (ARM && ARCH_AT91) || AVR32
         select SERIAL_CORE
         help
           This enables the driver for the on-chip UARTs of the Atmel
-          AT91RM9200 and AT91SAM926 processor.
+          AT91 and AT32 processors.
 
 config SERIAL_ATMEL_CONSOLE
         bool "Support for console on AT91 / AT32 serial port"
         depends on SERIAL_ATMEL=y
         select SERIAL_CORE_CONSOLE
         help
-          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).
+          Say Y here if you wish to use an on-chip UART on a Atmel
+          AT91 or AT32 processor 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_ATMEL_TTYAT
-        bool "Install as device ttyAT0-4 instead of ttyS0-4"
+        bool "Install as device ttyATn instead of ttySn"
         depends on SERIAL_ATMEL=y
         help
-          Say Y here if you wish to have the five internal AT91RM9200 UARTs
-          appear as /dev/ttyAT0-4 (major 204, minor 154-158) instead of the
-          normal /dev/ttyS0-4 (major 4, minor 64-68). This is necessary if
-          you also want other UARTs, such as external 8250/16C550 compatible
-          UARTs.
+          Say Y here if you wish to have the internal AT91 / AT32 UARTs
+          appear as /dev/ttyATn (major 204, minor starting at 154)
+          instead of the normal /dev/ttySn (major 4, minor starting at
+          64). This is necessary if you also want other UARTs, such as
+          external 8250/16C550 compatible UARTs.
           The ttySn nodes are legally reserved for the 8250 serial driver
           but are often misused by other serial drivers.
 
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 34212df3980..61db2166fbb 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -39,8 +39,10 @@
 #include <asm/arch/at91rm9200_pdc.h>
 #include <asm/mach/serial_at91.h>
 #include <asm/arch/board.h>
+#ifdef CONFIG_ARM
 #include <asm/arch/system.h>
 #include <asm/arch/gpio.h>
+#endif
 
 #include "atmel_serial.h"
 
@@ -135,6 +137,7 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl)
         unsigned int control = 0;
         unsigned int mode;
 
+#ifdef CONFIG_ARM
         if (arch_identify() == ARCH_ID_AT91RM9200) {
                 /*
                  * AT91RM9200 Errata #39: RTS0 is not internally connected to PA21.
@@ -147,6 +150,7 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl)
                                 at91_set_gpio_value(AT91_PIN_PA21, 1);
                 }
         }
+#endif
 
         if (mctrl & TIOCM_RTS)
                 control |= ATMEL_US_RTSEN;