include/asm-m68knommu/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 /*
  17  *      Define the base address of the UARTS within the MBAR address
  18  *      space.
  19  */
  20 #if defined(CONFIG_M5272)
  21 #define MCFUART_BASE1           0x100           /* Base address of UART1 */
  22 #define MCFUART_BASE2           0x140           /* Base address of UART2 */
  23 #elif defined(CONFIG_M5204) || defined(CONFIG_M5206) || defined(CONFIG_M5206e)
  24 #if defined(CONFIG_NETtel)
  25 #define MCFUART_BASE1           0x180           /* Base address of UART1 */
  26 #define MCFUART_BASE2           0x140           /* Base address of UART2 */
  27 #else
  28 #define MCFUART_BASE1           0x140           /* Base address of UART1 */
  29 #define MCFUART_BASE2           0x180           /* Base address of UART2 */
  30 #endif
  31 #elif defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x)
  32 #define MCFUART_BASE1           0x200           /* Base address of UART1 */
  33 #define MCFUART_BASE2           0x240           /* Base address of UART2 */
  34 #define MCFUART_BASE3           0x280           /* Base address of UART3 */
  35 #elif defined(CONFIG_M5249) || defined(CONFIG_M5307) || defined(CONFIG_M5407)
  36 #if defined(CONFIG_NETtel) || defined(CONFIG_DISKtel) || defined(CONFIG_SECUREEDGEMP3)
  37 #define MCFUART_BASE1           0x200           /* Base address of UART1 */
  38 #define MCFUART_BASE2           0x1c0           /* Base address of UART2 */
  39 #else
  40 #define MCFUART_BASE1           0x1c0           /* Base address of UART1 */
  41 #define MCFUART_BASE2           0x200           /* Base address of UART2 */
  42 #endif
  43 #elif defined(CONFIG_M520x)
  44 #define MCFUART_BASE1           0x60000         /* Base address of UART1 */
  45 #define MCFUART_BASE2           0x64000         /* Base address of UART2 */
  46 #define MCFUART_BASE3           0x68000         /* Base address of UART2 */
  47 #elif defined(CONFIG_M532x)
  48 #define MCFUART_BASE1           0xfc060000      /* Base address of UART1 */
  49 #define MCFUART_BASE2           0xfc064000      /* Base address of UART2 */
  50 #define MCFUART_BASE3           0xfc068000      /* Base address of UART3 */
  51 #endif
  52
  53
  54 #include <linux/serial_core.h>
  55 #include <linux/platform_device.h>
  56
  57 struct mcf_platform_uart {
  58         unsigned long   mapbase;        /* Physical address base */
  59         void __iomem    *membase;       /* Virtual address if mapped */
  60         unsigned int    irq;            /* Interrupt vector */
  61         unsigned int    uartclk;        /* UART clock rate */
  62 };
  63
  64 /*
  65  *      Define the ColdFire UART register set addresses.
  66  */
  67 #define MCFUART_UMR             0x00            /* Mode register (r/w) */
  68 #define MCFUART_USR             0x04            /* Status register (r) */
  69 #define MCFUART_UCSR            0x04            /* Clock Select (w) */
  70 #define MCFUART_UCR             0x08            /* Command register (w) */
  71 #define MCFUART_URB             0x0c            /* Receiver Buffer (r) */
  72 #define MCFUART_UTB             0x0c            /* Transmit Buffer (w) */
  73 #define MCFUART_UIPCR           0x10            /* Input Port Change (r) */
  74 #define MCFUART_UACR            0x10            /* Auxiliary Control (w) */
  75 #define MCFUART_UISR            0x14            /* Interrup Status (r) */
  76 #define MCFUART_UIMR            0x14            /* Interrupt Mask (w) */
  77 #define MCFUART_UBG1            0x18            /* Baud Rate MSB (r/w) */
  78 #define MCFUART_UBG2            0x1c            /* Baud Rate LSB (r/w) */
  79 #ifdef  CONFIG_M5272
  80 #define MCFUART_UTF             0x28            /* Transmitter FIFO (r/w) */
  81 #define MCFUART_URF             0x2c            /* Receiver FIFO (r/w) */
  82 #define MCFUART_UFPD            0x30            /* Frac Prec. Divider (r/w) */
  83 #else
  84 #define MCFUART_UIVR            0x30            /* Interrupt Vector (r/w) */
  85 #endif
  86 #define MCFUART_UIPR            0x34            /* Input Port (r) */
  87 #define MCFUART_UOP1            0x38            /* Output Port Bit Set (w) */
  88 #define MCFUART_UOP0            0x3c            /* Output Port Bit Reset (w) */
  89
  90
  91 /*
  92  *      Define bit flags in Mode Register 1 (MR1).
  93  */
  94 #define MCFUART_MR1_RXRTS       0x80            /* Auto RTS flow control */
  95 #define MCFUART_MR1_RXIRQFULL   0x40            /* RX IRQ type FULL */
  96 #define MCFUART_MR1_RXIRQRDY    0x00            /* RX IRQ type RDY */
  97 #define MCFUART_MR1_RXERRBLOCK  0x20            /* RX block error mode */
  98 #define MCFUART_MR1_RXERRCHAR   0x00            /* RX char error mode */
  99
 100 #define MCFUART_MR1_PARITYNONE  0x10            /* No parity */
 101 #define MCFUART_MR1_PARITYEVEN  0x00            /* Even parity */
 102 #define MCFUART_MR1_PARITYODD   0x04            /* Odd parity */
 103 #define MCFUART_MR1_PARITYSPACE 0x08            /* Space parity */
 104 #define MCFUART_MR1_PARITYMARK  0x0c            /* Mark parity */
 105
 106 #define MCFUART_MR1_CS5         0x00            /* 5 bits per char */
 107 #define MCFUART_MR1_CS6         0x01            /* 6 bits per char */
 108 #define MCFUART_MR1_CS7         0x02            /* 7 bits per char */
 109 #define MCFUART_MR1_CS8         0x03            /* 8 bits per char */
 110
 111 /*
 112  *      Define bit flags in Mode Register 2 (MR2).
 113  */
 114 #define MCFUART_MR2_LOOPBACK    0x80            /* Loopback mode */
 115 #define MCFUART_MR2_REMOTELOOP  0xc0            /* Remote loopback mode */
 116 #define MCFUART_MR2_AUTOECHO    0x40            /* Automatic echo */
 117 #define MCFUART_MR2_TXRTS       0x20            /* Assert RTS on TX */
 118 #define MCFUART_MR2_TXCTS       0x10            /* Auto CTS flow control */
 119
 120 #define MCFUART_MR2_STOP1       0x07            /* 1 stop bit */
 121 #define MCFUART_MR2_STOP15      0x08            /* 1.5 stop bits */
 122 #define MCFUART_MR2_STOP2       0x0f            /* 2 stop bits */
 123
 124 /*
 125  *      Define bit flags in Status Register (USR).
 126  */
 127 #define MCFUART_USR_RXBREAK     0x80            /* Received BREAK */
 128 #define MCFUART_USR_RXFRAMING   0x40            /* Received framing error */
 129 #define MCFUART_USR_RXPARITY    0x20            /* Received parity error */
 130 #define MCFUART_USR_RXOVERRUN   0x10            /* Received overrun error */
 131 #define MCFUART_USR_TXEMPTY     0x08            /* Transmitter empty */
 132 #define MCFUART_USR_TXREADY     0x04            /* Transmitter ready */
 133 #define MCFUART_USR_RXFULL      0x02            /* Receiver full */
 134 #define MCFUART_USR_RXREADY     0x01            /* Receiver ready */
 135
 136 #define MCFUART_USR_RXERR       (MCFUART_USR_RXBREAK | MCFUART_USR_RXFRAMING | \
 137                                 MCFUART_USR_RXPARITY | MCFUART_USR_RXOVERRUN)
 138
 139 /*
 140  *      Define bit flags in Clock Select Register (UCSR).
 141  */
 142 #define MCFUART_UCSR_RXCLKTIMER 0xd0            /* RX clock is timer */
 143 #define MCFUART_UCSR_RXCLKEXT16 0xe0            /* RX clock is external x16 */
 144 #define MCFUART_UCSR_RXCLKEXT1  0xf0            /* RX clock is external x1 */
 145
 146 #define MCFUART_UCSR_TXCLKTIMER 0x0d            /* TX clock is timer */
 147 #define MCFUART_UCSR_TXCLKEXT16 0x0e            /* TX clock is external x16 */
 148 #define MCFUART_UCSR_TXCLKEXT1  0x0f            /* TX clock is external x1 */
 149
 150 /*
 151  *      Define bit flags in Command Register (UCR).
 152  */
 153 #define MCFUART_UCR_CMDNULL             0x00    /* No command */
 154 #define MCFUART_UCR_CMDRESETMRPTR       0x10    /* Reset MR pointer */
 155 #define MCFUART_UCR_CMDRESETRX          0x20    /* Reset receiver */
 156 #define MCFUART_UCR_CMDRESETTX          0x30    /* Reset transmitter */
 157 #define MCFUART_UCR_CMDRESETERR         0x40    /* Reset error status */
 158 #define MCFUART_UCR_CMDRESETBREAK       0x50    /* Reset BREAK change */
 159 #define MCFUART_UCR_CMDBREAKSTART       0x60    /* Start BREAK */
 160 #define MCFUART_UCR_CMDBREAKSTOP        0x70    /* Stop BREAK */
 161
 162 #define MCFUART_UCR_TXNULL      0x00            /* No TX command */
 163 #define MCFUART_UCR_TXENABLE    0x04            /* Enable TX */
 164 #define MCFUART_UCR_TXDISABLE   0x08            /* Disable TX */
 165 #define MCFUART_UCR_RXNULL      0x00            /* No RX command */
 166 #define MCFUART_UCR_RXENABLE    0x01            /* Enable RX */
 167 #define MCFUART_UCR_RXDISABLE   0x02            /* Disable RX */
 168
 169 /*
 170  *      Define bit flags in Input Port Change Register (UIPCR).
 171  */
 172 #define MCFUART_UIPCR_CTSCOS    0x10            /* CTS change of state */
 173 #define MCFUART_UIPCR_CTS       0x01            /* CTS value */
 174
 175 /*
 176  *      Define bit flags in Input Port Register (UIP).
 177  */
 178 #define MCFUART_UIPR_CTS        0x01            /* CTS value */
 179
 180 /*
 181  *      Define bit flags in Output Port Registers (UOP).
 182  *      Clear bit by writing to UOP0, set by writing to UOP1.
 183  */
 184 #define MCFUART_UOP_RTS         0x01            /* RTS set or clear */
 185
 186 /*
 187  *      Define bit flags in the Auxiliary Control Register (UACR).
 188  */
 189 #define MCFUART_UACR_IEC        0x01            /* Input enable control */
 190
 191 /*
 192  *      Define bit flags in Interrupt Status Register (UISR).
 193  *      These same bits are used for the Interrupt Mask Register (UIMR).
 194  */
 195 #define MCFUART_UIR_COS         0x80            /* Change of state (CTS) */
 196 #define MCFUART_UIR_DELTABREAK  0x04            /* Break start or stop */
 197 #define MCFUART_UIR_RXREADY     0x02            /* Receiver ready */
 198 #define MCFUART_UIR_TXREADY     0x01            /* Transmitter ready */
 199
 200 #ifdef  CONFIG_M5272
 201 /*
 202  *      Define bit flags in the Transmitter FIFO Register (UTF).
 203  */
 204 #define MCFUART_UTF_TXB         0x1f            /* Transmitter data level */
 205 #define MCFUART_UTF_FULL        0x20            /* Transmitter fifo full */
 206 #define MCFUART_UTF_TXS         0xc0            /* Transmitter status */
 207
 208 /*
 209  *      Define bit flags in the Receiver FIFO Register (URF).
 210  */
 211 #define MCFUART_URF_RXB         0x1f            /* Receiver data level */
 212 #define MCFUART_URF_FULL        0x20            /* Receiver fifo full */
 213 #define MCFUART_URF_RXS         0xc0            /* Receiver status */
 214 #endif
 215
 216 /****************************************************************************/
 217 #endif  /* mcfuart_h */