include/asm-arm/arch-pxa/serial.h

   1 /*
   2  *  linux/include/asm-arm/arch-pxa/serial.h
   3  *
   4  * Author:      Nicolas Pitre
   5  * Copyright:   (C) 2001 MontaVista Software Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <asm/arch/pxa-regs.h>
  13
  14 #define BAUD_BASE       921600
  15
  16 /* Standard COM flags */
  17 #define STD_COM_FLAGS (ASYNC_SKIP_TEST)
  18
  19 #define STD_SERIAL_PORT_DEFNS   \
  20         {       \
  21                 type:                   PORT_PXA,       \
  22                 xmit_fifo_size:         64,             \
  23                 baud_base:              BAUD_BASE,      \
  24                 iomem_base:             &FFUART,        \
  25                 iomem_reg_shift:        2,              \
  26                 io_type:                SERIAL_IO_MEM,  \
  27                 irq:                    IRQ_FFUART,     \
  28                 flags:                  STD_COM_FLAGS,  \
  29         }, {    \
  30                 type:                   PORT_PXA,       \
  31                 xmit_fifo_size:         64,             \
  32                 baud_base:              BAUD_BASE,      \
  33                 iomem_base:             &STUART,        \
  34                 iomem_reg_shift:        2,              \
  35                 io_type:                SERIAL_IO_MEM,  \
  36                 irq:                    IRQ_STUART,     \
  37                 flags:                  STD_COM_FLAGS,  \
  38         }, {    \
  39                 type:                   PORT_PXA,       \
  40                 xmit_fifo_size:         64,             \
  41                 baud_base:              BAUD_BASE,      \
  42                 iomem_base:             &BTUART,        \
  43                 iomem_reg_shift:        2,              \
  44                 io_type:                SERIAL_IO_MEM,  \
  45                 irq:                    IRQ_BTUART,     \
  46                 flags:                  STD_COM_FLAGS,  \
  47         }
  48
  49 #define EXTRA_SERIAL_PORT_DEFNS
  50
  51 struct platform_pxa_serial_funcs {
  52
  53         /* Initialize whatever is connected to this serial port. */
  54         void (*configure)(int state);
  55 #define PXA_UART_CFG_PRE_STARTUP   0
  56 #define PXA_UART_CFG_POST_STARTUP  1
  57 #define PXA_UART_CFG_PRE_SHUTDOWN  2
  58 #define PXA_UART_CFG_POST_SHUTDOWN 3
  59
  60         /* Enable or disable the individual transmitter/receiver submodules.
  61          * On transceivers without echo cancellation (e.g. SIR)
  62          * transmitter always has priority; e.g. if both bits are set,
  63          * only the transmitter is enabled. */
  64         void (*set_txrx)(int txrx);
  65 #define PXA_SERIAL_TX 1
  66 #define PXA_SERIAL_RX 2
  67
  68         /* Get the current state of tx/rx. */
  69         int (*get_txrx)(void);
  70 };
  71
  72 extern struct platform_device ffuart_device;
  73 extern struct platform_device btuart_device;
  74 extern struct platform_device stuart_device;
  75 extern struct platform_device hwuart_device;