[ARM] 4757/1: [AT91] UART initialization

Modify the UART initialization to allow the board-initialization code
to specify which pins are connected, and which pins should therefore
be initialized.

The current at91_init_serial() will continue to work as-is, but is
marked as "deprecated" and will be removed once the board-specific
files has been updated to use the new interface.

As in the AVR32 code, we assume that the TX and RX pins will always be
initialized.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 11 insertions, 1 deletions

diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h
index 7fefe018833c..3f41ab28b37f 100644
--- a/include/asm-arm/arch-at91/board.h
+++ b/include/asm-arm/arch-at91/board.h
@@ -101,13 +101,23 @@ extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_de
 extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);
 
  /* Serial */
+#define ATMEL_UART_CTS  0x01
+#define ATMEL_UART_RTS  0x02
+#define ATMEL_UART_DSR  0x04
+#define ATMEL_UART_DTR  0x08
+#define ATMEL_UART_DCD  0x10
+#define ATMEL_UART_RI   0x20
+
+extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins);
+extern void __init at91_set_serial_console(unsigned portnr);
+
 struct at91_uart_config {
         unsigned short  console_tty;    /* tty number of serial console */
         unsigned short  nr_tty;         /* number of serial tty's */
         short           tty_map[];      /* map UART to tty number */
 };
 extern struct platform_device *atmel_default_console_device;
-extern void __init at91_init_serial(struct at91_uart_config *config);
+extern void __init __deprecated at91_init_serial(struct at91_uart_config *config);
 
 struct atmel_uart_data {
         short           use_dma_tx;     /* use transmit DMA? */