arch/m68k/include/asm/mcfuart.h

   1 /****************************************************************************/
   2
   3 /*
   4  *      mcfuart.h -- ColdFire internal UART support defines.
   5  *
   6  *      (C) Copyright 1999-2003, Greg Ungerer (gerg@snapgear.com)
   7  *      (C) Copyright 2000, Lineo Inc. (www.lineo.com)
   8  */
   9
  10 /****************************************************************************/
  11 #ifndef mcfuart_h
  12 #define mcfuart_h
  13 /****************************************************************************/
  14
  15 /*
  16  *      Define the base address of the UARTS within the MBAR address
  17  *      space.
  18  */
  19 #if defined(CONFIG_M5272)
  20 #define MCFUART_BASE1           0x100           /* Base address of UART1 */
  21 #define MCFUART_BASE2           0x140           /* Base address of UART2 */
  22 #elif defined(CONFIG_M5206) || defined(CONFIG_M5206e)
  23 #if defined(CONFIG_NETtel)
  24 #define MCFUART_BASE1           0x180           /* Base address of UART1 */
  25 #define MCFUART_BASE2           0x140           /* Base address of UART2 */
  26 #else
  27 #define MCFUART_BASE1           0x140           /* Base address of UART1 */
  28 #define MCFUART_BASE2           0x180           /* Base address of UART2 */
  29 #endif
  30 #elif defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x)
  31 #define MCFUART_BASE1           0x200           /* Base address of UART1 */
  32 #define MCFUART_BASE2           0x240           /* Base address of UART2 */
  33 #define MCFUART_BASE3           0x280           /* Base address of UART3 */
  34 #elif defined(CONFIG_M5249) || defined(CONFIG_M5307) || defined(CONFIG_M5407)
  35 #if defined(CONFIG_NETtel) || defined(CONFIG_SECUREEDGEMP3)
  36 #define MCFUART_BASE1           0x200           /* Base address of UART1 */
  37 #define MCFUART_BASE2           0x1c0           /* Base address of UART2 */
  38 #else
  39 #define MCFUART_BASE1           0x1c0           /* Base address of UART1 */
  40 #define MCFUART_BASE2           0x200           /* Base address of UART2 */
  41 #endif
  42 #elif defined(CONFIG_M520x)
  43 #define MCFUART_BASE1           0x60000         /* Base address of UART1 */
  44 #define MCFUART_BASE2           0x64000         /* Base address of UART2 */
  45 #define MCFUART_BASE3           0x68000         /* Base address of UART2 */
  46 #elif defined(CONFIG_M532x)
  47 #define MCFUART_BASE1           0xfc060000      /* Base address of UART1 */
  48 #define MCFUART_BASE2           0xfc064000      /* Base address of UART2 */
  49 #define MCFUART_BASE3           0xfc068000      /* Base address of UART3 */
  50 #endif
  51
  52
  53 #include <linux/serial_core.h>
  54 #include <linux/platform_device.h>
  55
  56 struct mcf_platform_uart {
  57         unsigned long   mapbase;        /* Physical address base */
  58         void __iomem    *membase;       /* Virtual address if mapped */
  59         unsigned int    irq;            /* Interrupt vector */
  60         unsigned int    uartclk;        /* UART clock rate */
  61 };
  62
  63 /*
  64  *      Define the ColdFire UART register set addresses.
  65  */
  66 #define MCFUART_UMR             0x00            /* Mode register (r/w) */
  67 #define MCFUART_USR             0x04            /* Status register (r) */
  68 #define MCFUART_UCSR            0x04            /* Clock Select (w) */
  69 #define MCFUART_UCR             0x08            /* Command register (w) */
  70 #define MCFUART_URB             0x0c            /* Receiver Buffer (r) */
  71 #define MCFUART_UTB             0x0c            /* Transmit Buffer (w) */
  72 #define MCFUART_UIPCR           0x10            /* Input Port Change (r) */
  73 #define MCFUART_UACR            0x10            /* Auxiliary Control (w) */
  74 #define MCFUART_UISR            0x14            /* Interrupt Status (r) */
  75 #define MCFUART_UIMR            0x14            /* Interrupt Mask (w) */
  76 #define MCFUART_UBG1            0x18            /* Baud Rate MSB (r/w) */
  77 #define MCFUART_UBG2            0x1c            /* Baud Rate LSB (r/w) */
  78 #ifdef  CONFIG_M5272
  79 #define MCFUART_UTF             0x28            /* Transmitter FIFO (r/w) */
  80 #define MCFUART_URF             0x2c            /* Receiver FIFO (r/w) */
  81 #define MCFUART_UFPD            0x30            /* Frac Prec. Divider (r/w) */
  82 #else
  83 #define MCFUART_UIVR            0x30            /* Interrupt Vector (r/w) */
  84 #endif
  85 #define MCFUART_UIPR            0x34            /* Input Port (r) */
  86 #define MCFUART_UOP1            0x38            /* Output Port Bit Set (w) */
  87 #define MCFUART_UOP0            0x3c            /* Output Port Bit Reset (w) */
  88
  89
  90 /*
  91  *      Define bit flags in Mode Register 1 (MR1).
  92  */
  93 #define MCFUART_MR1_RXRTS       0x80            /* Auto RTS flow control */
  94 #define MCFUART_MR1_RXIRQFULL   0x40            /* RX IRQ type FULL */
  95 #define MCFUART_MR1_RXIRQRDY    0x00            /* RX IRQ type RDY */
  96 #define MCFUART_MR1_RXERRBLOCK  0x20            /* RX block error mode */
  97 #define MCFUART_MR1_RXERRCHAR   0x00            /* RX char error mode */
  98
  99 #define MCFUART_MR1_PARITYNONE  0x10            /* No parity */
 100 #define MCFUART_MR1_PARITYEVEN  0x00            /* Even parity */
 101 #define MCFUART_MR1_PARITYODD   0x04            /* Odd parity */
 102 #define MCFUART_MR1_PARITYSPACE 0x08            /* Space parity */
 103 #define MCFUART_MR1_PARITYMARK  0x0c            /* Mark parity */
 104
 105 #define MCFUART_MR1_CS5         0x00            /* 5 bits per char */
 106 #define MCFUART_MR1_CS6         0x01            /* 6 bits per char */
 107 #define MCFUART_MR1_CS7         0x02            /* 7 bits per char */
 108 #define MCFUART_MR1_CS8         0x03            /* 8 bits per char */
 109
 110 /*
 111  *      Define bit flags in Mode Register 2 (MR2).
 112  */
 113 #define MCFUART_MR2_LOOPBACK    0x80            /* Loopback mode */
 114 #define MCFUART_MR2_REMOTELOOP  0xc0            /* Remote loopback mode */
 115 #define MCFUART_MR2_AUTOECHO    0x40            /* Automatic echo */
 116 #define MCFUART_MR2_TXRTS       0x20            /* Assert RTS on TX */
 117 #define MCFUART_MR2_TXCTS       0x10            /* Auto CTS flow control */
 118
 119 #define MCFUART_MR2_STOP1       0x07            /* 1 stop bit */
 120 #define MCFUART_MR2_STOP15      0x08            /* 1.5 stop bits */
 121 #define MCFUART_MR2_STOP2       0x0f            /* 2 stop bits */
 122
 123 /*
 124  *      Define bit flags in Status Register (USR).
 125  */
 126 #define MCFUART_USR_RXBREAK     0x80            /* Received BREAK */
 127 #define MCFUART_USR_RXFRAMING   0x40            /* Received framing error */
 128 #define MCFUART_USR_RXPARITY    0x20            /* Received parity error */
 129 #define MCFUART_USR_RXOVERRUN   0x10            /* Received overrun error */
 130 #define MCFUART_USR_TXEMPTY     0x08            /* Transmitter empty */
 131 #define MCFUART_USR_TXREADY     0x04            /* Transmitter ready */
 132 #define MCFUART_USR_RXFULL      0x02            /* Receiver full */
 133 #define MCFUART_USR_RXREADY     0x01            /* Receiver ready */
 134
 135 #define MCFUART_USR_RXERR       (MCFUART_USR_RXBREAK | MCFUART_USR_RXFRAMING | \
 136                                 MCFUART_USR_RXPARITY | MCFUART_USR_RXOVERRUN)
 137
 138 /*
 139  *      Define bit flags in Clock Select Register (UCSR).
 140  */
 141 #define MCFUART_UCSR_RXCLKTIMER 0xd0            /* RX clock is timer */
 142 #define MCFUART_UCSR_RXCLKEXT16 0xe0            /* RX clock is external x16 */
 143 #define MCFUART_UCSR_RXCLKEXT1  0xf0            /* RX clock is external x1 */
 144
 145 #define MCFUART_UCSR_TXCLKTIMER 0x0d            /* TX clock is timer */
 146 #define MCFUART_UCSR_TXCLKEXT16 0x0e            /* TX clock is external x16 */
 147 #define MCFUART_UCSR_TXCLKEXT1  0x0f            /* TX clock is external x1 */
 148
 149 /*
 150  *      Define bit flags in Command Register (UCR).
 151  */
 152 #define MCFUART_UCR_CMDNULL             0x00    /* No command */
 153 #define MCFUART_UCR_CMDRESETMRPTR       0x10    /* Reset MR pointer */
 154 #define MCFUART_UCR_CMDRESETRX          0x20    /* Reset receiver */
 155 #define MCFUART_UCR_CMDRESETTX          0x30    /* Reset transmitter */
 156 #define MCFUART_UCR_CMDRESETERR         0x40    /* Reset error status */
 157 #define MCFUART_UCR_CMDRESETBREAK       0x50    /* Reset BREAK change */
 158 #define MCFUART_UCR_CMDBREAKSTART       0x60    /* Start BREAK */
 159 #define MCFUART_UCR_CMDBREAKSTOP        0x70    /* Stop BREAK */
 160
 161 #define MCFUART_UCR_TXNULL      0x00            /* No TX command */
 162 #define MCFUART_UCR_TXENABLE    0x04            /* Enable TX */
 163 #define MCFUART_UCR_TXDISABLE   0x08            /* Disable TX */
 164 #define MCFUART_UCR_RXNULL      0x00            /* No RX command */
 165 #define MCFUART_UCR_RXENABLE    0x01            /* Enable RX */
 166 #define MCFUART_UCR_RXDISABLE   0x02            /* Disable RX */
 167
 168 /*
 169  *      Define bit flags in Input Port Change Register (UIPCR).
 170  */
 171 #define MCFUART_UIPCR_CTSCOS    0x10            /* CTS change of state */
 172 #define MCFUART_UIPCR_CTS       0x01            /* CTS value */
 173
 174 /*
 175  *      Define bit flags in Input Port Register (UIP).
 176  */
 177 #define MCFUART_UIPR_CTS        0x01            /* CTS value */
 178
 179 /*
 180  *      Define bit flags in Output Port Registers (UOP).
 181  *      Clear bit by writing to UOP0, set by writing to UOP1.
 182  */
 183 #define MCFUART_UOP_RTS         0x01            /* RTS set or clear */
 184
 185 /*
 186  *      Define bit flags in the Auxiliary Control Register (UACR).
 187  */
 188 #define MCFUART_UACR_IEC        0x01            /* Input enable control */
 189
 190 /*
 191  *      Define bit flags in Interrupt Status Register (UISR).
 192  *      These same bits are used for the Interrupt Mask Register (UIMR).
 193  */
 194 #define MCFUART_UIR_COS         0x80            /* Change of state (CTS) */
 195 #define MCFUART_UIR_DELTABREAK  0x04            /* Break start or stop */
 196 #define MCFUART_UIR_RXREADY     0x02            /* Receiver ready */
 197 #define MCFUART_UIR_TXREADY     0x01            /* Transmitter ready */
 198
 199 #ifdef  CONFIG_M5272
 200 /*
 201  *      Define bit flags in the Transmitter FIFO Register (UTF).
 202  */
 203 #define MCFUART_UTF_TXB         0x1f            /* Transmitter data level */
 204 #define MCFUART_UTF_FULL        0x20            /* Transmitter fifo full */
 205 #define MCFUART_UTF_TXS         0xc0            /* Transmitter status */
 206
 207 /*
 208  *      Define bit flags in the Receiver FIFO Register (URF).
 209  */
 210 #define MCFUART_URF_RXB         0x1f            /* Receiver data level */
 211 #define MCFUART_URF_FULL        0x20            /* Receiver fifo full */
 212 #define MCFUART_URF_RXS         0xc0            /* Receiver status */
 213 #endif
 214
 215 /****************************************************************************/
 216 #endif  /* mcfuart_h */