target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar933x_uart.h

   1 /*
   2  *  Atheros AR933X UART defines
   3  *
   4  *  Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  */
  10
  11 #ifndef __AR933X_UART_H
  12 #define __AR933X_UART_H
  13
  14 #define AR933X_UART_REGS_SIZE           20
  15 #define AR933X_UART_FIFO_SIZE           16
  16
  17 #define AR933X_UART_DATA_REG            0x00
  18 #define AR933X_UART_CS_REG              0x04
  19 #define AR933X_UART_CLOCK_REG           0x08
  20 #define AR933X_UART_INT_REG             0x0c
  21 #define AR933X_UART_INT_EN_REG          0x10
  22
  23 #define AR933X_UART_DATA_TX_RX_MASK     0xff
  24 #define AR933X_UART_DATA_RX_CSR         BIT(8)
  25 #define AR933X_UART_DATA_TX_CSR         BIT(9)
  26
  27 #define AR933X_UART_CS_PARITY_S         0
  28 #define AR933X_UART_CS_PARITY_M         0x3
  29 #define   AR933X_UART_CS_PARITY_NONE    0
  30 #define   AR933X_UART_CS_PARITY_ODD     1
  31 #define   AR933X_UART_CS_PARITY_EVEN    2
  32 #define AR933X_UART_CS_IF_MODE_S        2
  33 #define AR933X_UART_CS_IF_MODE_M        0x3
  34 #define   AR933X_UART_CS_IF_MODE_NONE   0
  35 #define   AR933X_UART_CS_IF_MODE_DTE    1
  36 #define   AR933X_UART_CS_IF_MODE_DCE    2
  37 #define AR933X_UART_CS_FLOW_CTRL_S      4
  38 #define AR933X_UART_CS_FLOW_CTRL_M      0x3
  39 #define AR933X_UART_CS_DMA_EN           BIT(6)
  40 #define AR933X_UART_CS_TX_READY_ORIDE   BIT(7)
  41 #define AR933X_UART_CS_RX_READY_ORIDE   BIT(8)
  42 #define AR933X_UART_CS_TX_READY         BIT(9)
  43 #define AR933X_UART_CS_RX_BREAK         BIT(10)
  44 #define AR933X_UART_CS_TX_BREAK         BIT(11)
  45 #define AR933X_UART_CS_HOST_INT         BIT(12)
  46 #define AR933X_UART_CS_HOST_INT_EN      BIT(13)
  47 #define AR933X_UART_CS_TX_BUSY          BIT(14)
  48 #define AR933X_UART_CS_RX_BUSY          BIT(15)
  49
  50 #define AR933X_UART_CLOCK_STEP_M        0xffff
  51 #define AR933X_UART_CLOCK_SCALE_M       0xfff
  52 #define AR933X_UART_CLOCK_SCALE_S       16
  53 #define AR933X_UART_CLOCK_STEP_M        0xffff
  54
  55 #define AR933X_UART_INT_RX_VALID        BIT(0)
  56 #define AR933X_UART_INT_TX_READY        BIT(1)
  57 #define AR933X_UART_INT_RX_FRAMING_ERR  BIT(2)
  58 #define AR933X_UART_INT_RX_OFLOW_ERR    BIT(3)
  59 #define AR933X_UART_INT_TX_OFLOW_ERR    BIT(4)
  60 #define AR933X_UART_INT_RX_PARITY_ERR   BIT(5)
  61 #define AR933X_UART_INT_RX_BREAK_ON     BIT(6)
  62 #define AR933X_UART_INT_RX_BREAK_OFF    BIT(7)
  63 #define AR933X_UART_INT_RX_FULL         BIT(8)
  64 #define AR933X_UART_INT_TX_EMPTY        BIT(9)
  65 #define AR933X_UART_INT_ALLINTS         0x3ff
  66
  67 #endif /* __AR933X_UART_H */