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   1 /*
   2  * include/asm-ppc/mpc52xx_psc.h
   3  *
   4  * Definitions of consts/structs to drive the Freescale MPC52xx OnChip
   5  * PSCs. Theses are shared between multiple drivers since a PSC can be
   6  * UART, AC97, IR, I2S, ... So this header is in asm-ppc.
   7  *
   8  *
   9  * Maintainer : Sylvain Munaut <tnt@246tNt.com>
  10  *
  11  * Based/Extracted from some header of the 2.4 originally written by
  12  * Dale Farnsworth <dfarnsworth@mvista.com>
  13  *
  14  * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
  15  * Copyright (C) 2003 MontaVista, Software, Inc.
  16  *
  17  * This file is licensed under the terms of the GNU General Public License
  18  * version 2. This program is licensed "as is" without any warranty of any
  19  * kind, whether express or implied.
  20  */
  21
  22 #ifndef __ASM_MPC52xx_PSC_H__
  23 #define __ASM_MPC52xx_PSC_H__
  24
  25 #include <asm/types.h>
  26
  27 /* Max number of PSCs */
  28 #define MPC52xx_PSC_MAXNUM      6
  29
  30 /* Programmable Serial Controller (PSC) status register bits */
  31 #define MPC52xx_PSC_SR_UNEX_RX  0x0001
  32 #define MPC52xx_PSC_SR_DATA_VAL 0x0002
  33 #define MPC52xx_PSC_SR_DATA_OVR 0x0004
  34 #define MPC52xx_PSC_SR_CMDSEND  0x0008
  35 #define MPC52xx_PSC_SR_CDE      0x0080
  36 #define MPC52xx_PSC_SR_RXRDY    0x0100
  37 #define MPC52xx_PSC_SR_RXFULL   0x0200
  38 #define MPC52xx_PSC_SR_TXRDY    0x0400
  39 #define MPC52xx_PSC_SR_TXEMP    0x0800
  40 #define MPC52xx_PSC_SR_OE       0x1000
  41 #define MPC52xx_PSC_SR_PE       0x2000
  42 #define MPC52xx_PSC_SR_FE       0x4000
  43 #define MPC52xx_PSC_SR_RB       0x8000
  44
  45 /* PSC Command values */
  46 #define MPC52xx_PSC_RX_ENABLE           0x0001
  47 #define MPC52xx_PSC_RX_DISABLE          0x0002
  48 #define MPC52xx_PSC_TX_ENABLE           0x0004
  49 #define MPC52xx_PSC_TX_DISABLE          0x0008
  50 #define MPC52xx_PSC_SEL_MODE_REG_1      0x0010
  51 #define MPC52xx_PSC_RST_RX              0x0020
  52 #define MPC52xx_PSC_RST_TX              0x0030
  53 #define MPC52xx_PSC_RST_ERR_STAT        0x0040
  54 #define MPC52xx_PSC_RST_BRK_CHG_INT     0x0050
  55 #define MPC52xx_PSC_START_BRK           0x0060
  56 #define MPC52xx_PSC_STOP_BRK            0x0070
  57
  58 /* PSC TxRx FIFO status bits */
  59 #define MPC52xx_PSC_RXTX_FIFO_ERR       0x0040
  60 #define MPC52xx_PSC_RXTX_FIFO_UF        0x0020
  61 #define MPC52xx_PSC_RXTX_FIFO_OF        0x0010
  62 #define MPC52xx_PSC_RXTX_FIFO_FR        0x0008
  63 #define MPC52xx_PSC_RXTX_FIFO_FULL      0x0004
  64 #define MPC52xx_PSC_RXTX_FIFO_ALARM     0x0002
  65 #define MPC52xx_PSC_RXTX_FIFO_EMPTY     0x0001
  66
  67 /* PSC interrupt status/mask bits */
  68 #define MPC52xx_PSC_IMR_UNEX_RX_SLOT 0x0001
  69 #define MPC52xx_PSC_IMR_DATA_VALID      0x0002
  70 #define MPC52xx_PSC_IMR_DATA_OVR        0x0004
  71 #define MPC52xx_PSC_IMR_CMD_SEND        0x0008
  72 #define MPC52xx_PSC_IMR_ERROR           0x0040
  73 #define MPC52xx_PSC_IMR_DEOF            0x0080
  74 #define MPC52xx_PSC_IMR_TXRDY           0x0100
  75 #define MPC52xx_PSC_IMR_RXRDY           0x0200
  76 #define MPC52xx_PSC_IMR_DB              0x0400
  77 #define MPC52xx_PSC_IMR_TXEMP           0x0800
  78 #define MPC52xx_PSC_IMR_ORERR           0x1000
  79 #define MPC52xx_PSC_IMR_IPC             0x8000
  80
  81 /* PSC input port change bits */
  82 #define MPC52xx_PSC_CTS                 0x01
  83 #define MPC52xx_PSC_DCD                 0x02
  84 #define MPC52xx_PSC_D_CTS               0x10
  85 #define MPC52xx_PSC_D_DCD               0x20
  86
  87 /* PSC acr bits */
  88 #define MPC52xx_PSC_IEC_CTS             0x01
  89 #define MPC52xx_PSC_IEC_DCD             0x02
  90
  91 /* PSC output port bits */
  92 #define MPC52xx_PSC_OP_RTS              0x01
  93 #define MPC52xx_PSC_OP_RES              0x02
  94
  95 /* PSC mode fields */
  96 #define MPC52xx_PSC_MODE_5_BITS                 0x00
  97 #define MPC52xx_PSC_MODE_6_BITS                 0x01
  98 #define MPC52xx_PSC_MODE_7_BITS                 0x02
  99 #define MPC52xx_PSC_MODE_8_BITS                 0x03
 100 #define MPC52xx_PSC_MODE_BITS_MASK              0x03
 101 #define MPC52xx_PSC_MODE_PAREVEN                0x00
 102 #define MPC52xx_PSC_MODE_PARODD                 0x04
 103 #define MPC52xx_PSC_MODE_PARFORCE               0x08
 104 #define MPC52xx_PSC_MODE_PARNONE                0x10
 105 #define MPC52xx_PSC_MODE_ERR                    0x20
 106 #define MPC52xx_PSC_MODE_FFULL                  0x40
 107 #define MPC52xx_PSC_MODE_RXRTS                  0x80
 108
 109 #define MPC52xx_PSC_MODE_ONE_STOP_5_BITS        0x00
 110 #define MPC52xx_PSC_MODE_ONE_STOP               0x07
 111 #define MPC52xx_PSC_MODE_TWO_STOP               0x0f
 112 #define MPC52xx_PSC_MODE_TXCTS                  0x10
 113
 114 #define MPC52xx_PSC_RFNUM_MASK  0x01ff
 115
 116 #define MPC52xx_PSC_SICR_DTS1                   (1 << 29)
 117 #define MPC52xx_PSC_SICR_SHDR                   (1 << 28)
 118 #define MPC52xx_PSC_SICR_SIM_MASK               (0xf << 24)
 119 #define MPC52xx_PSC_SICR_SIM_UART               (0x0 << 24)
 120 #define MPC52xx_PSC_SICR_SIM_UART_DCD           (0x8 << 24)
 121 #define MPC52xx_PSC_SICR_SIM_CODEC_8            (0x1 << 24)
 122 #define MPC52xx_PSC_SICR_SIM_CODEC_16           (0x2 << 24)
 123 #define MPC52xx_PSC_SICR_SIM_AC97               (0x3 << 24)
 124 #define MPC52xx_PSC_SICR_SIM_SIR                (0x8 << 24)
 125 #define MPC52xx_PSC_SICR_SIM_SIR_DCD            (0xc << 24)
 126 #define MPC52xx_PSC_SICR_SIM_MIR                (0x5 << 24)
 127 #define MPC52xx_PSC_SICR_SIM_FIR                (0x6 << 24)
 128 #define MPC52xx_PSC_SICR_SIM_CODEC_24           (0x7 << 24)
 129 #define MPC52xx_PSC_SICR_SIM_CODEC_32           (0xf << 24)
 130 #define MPC52xx_PSC_SICR_AWR                    (1 << 30)
 131 #define MPC52xx_PSC_SICR_GENCLK                 (1 << 23)
 132 #define MPC52xx_PSC_SICR_I2S                    (1 << 22)
 133 #define MPC52xx_PSC_SICR_CLKPOL                 (1 << 21)
 134 #define MPC52xx_PSC_SICR_SYNCPOL                (1 << 20)
 135 #define MPC52xx_PSC_SICR_CELLSLAVE              (1 << 19)
 136 #define MPC52xx_PSC_SICR_CELL2XCLK              (1 << 18)
 137 #define MPC52xx_PSC_SICR_ESAI                   (1 << 17)
 138 #define MPC52xx_PSC_SICR_ENAC97                 (1 << 16)
 139 #define MPC52xx_PSC_SICR_SPI                    (1 << 15)
 140 #define MPC52xx_PSC_SICR_MSTR                   (1 << 14)
 141 #define MPC52xx_PSC_SICR_CPOL                   (1 << 13)
 142 #define MPC52xx_PSC_SICR_CPHA                   (1 << 12)
 143 #define MPC52xx_PSC_SICR_USEEOF                 (1 << 11)
 144 #define MPC52xx_PSC_SICR_DISABLEEOF             (1 << 10)
 145
 146 /* Structure of the hardware registers */
 147 struct mpc52xx_psc {
 148         u8              mode;           /* PSC + 0x00 */
 149         u8              reserved0[3];
 150         union {                         /* PSC + 0x04 */
 151                 u16     status;
 152                 u16     clock_select;
 153         } sr_csr;
 154 #define mpc52xx_psc_status      sr_csr.status
 155 #define mpc52xx_psc_clock_select sr_csr.clock_select
 156         u16             reserved1;
 157         u8              command;        /* PSC + 0x08 */
 158         u8              reserved2[3];
 159         union {                         /* PSC + 0x0c */
 160                 u8      buffer_8;
 161                 u16     buffer_16;
 162                 u32     buffer_32;
 163         } buffer;
 164 #define mpc52xx_psc_buffer_8    buffer.buffer_8
 165 #define mpc52xx_psc_buffer_16   buffer.buffer_16
 166 #define mpc52xx_psc_buffer_32   buffer.buffer_32
 167         union {                         /* PSC + 0x10 */
 168                 u8      ipcr;
 169                 u8      acr;
 170         } ipcr_acr;
 171 #define mpc52xx_psc_ipcr        ipcr_acr.ipcr
 172 #define mpc52xx_psc_acr         ipcr_acr.acr
 173         u8              reserved3[3];
 174         union {                         /* PSC + 0x14 */
 175                 u16     isr;
 176                 u16     imr;
 177         } isr_imr;
 178 #define mpc52xx_psc_isr         isr_imr.isr
 179 #define mpc52xx_psc_imr         isr_imr.imr
 180         u16             reserved4;
 181         u8              ctur;           /* PSC + 0x18 */
 182         u8              reserved5[3];
 183         u8              ctlr;           /* PSC + 0x1c */
 184         u8              reserved6[3];
 185         /* BitClkDiv field of CCR is byte swapped in
 186          * the hardware for mpc5200/b compatibility */
 187         u32             ccr;            /* PSC + 0x20 */
 188         u32             ac97_slots;     /* PSC + 0x24 */
 189         u32             ac97_cmd;       /* PSC + 0x28 */
 190         u32             ac97_data;      /* PSC + 0x2c */
 191         u8              ivr;            /* PSC + 0x30 */
 192         u8              reserved8[3];
 193         u8              ip;             /* PSC + 0x34 */
 194         u8              reserved9[3];
 195         u8              op1;            /* PSC + 0x38 */
 196         u8              reserved10[3];
 197         u8              op0;            /* PSC + 0x3c */
 198         u8              reserved11[3];
 199         u32             sicr;           /* PSC + 0x40 */
 200         u8              ircr1;          /* PSC + 0x44 */
 201         u8              reserved13[3];
 202         u8              ircr2;          /* PSC + 0x44 */
 203         u8              reserved14[3];
 204         u8              irsdr;          /* PSC + 0x4c */
 205         u8              reserved15[3];
 206         u8              irmdr;          /* PSC + 0x50 */
 207         u8              reserved16[3];
 208         u8              irfdr;          /* PSC + 0x54 */
 209         u8              reserved17[3];
 210 };
 211
 212 struct mpc52xx_psc_fifo {
 213         u16             rfnum;          /* PSC + 0x58 */
 214         u16             reserved18;
 215         u16             tfnum;          /* PSC + 0x5c */
 216         u16             reserved19;
 217         u32             rfdata;         /* PSC + 0x60 */
 218         u16             rfstat;         /* PSC + 0x64 */
 219         u16             reserved20;
 220         u8              rfcntl;         /* PSC + 0x68 */
 221         u8              reserved21[5];
 222         u16             rfalarm;        /* PSC + 0x6e */
 223         u16             reserved22;
 224         u16             rfrptr;         /* PSC + 0x72 */
 225         u16             reserved23;
 226         u16             rfwptr;         /* PSC + 0x76 */
 227         u16             reserved24;
 228         u16             rflrfptr;       /* PSC + 0x7a */
 229         u16             reserved25;
 230         u16             rflwfptr;       /* PSC + 0x7e */
 231         u32             tfdata;         /* PSC + 0x80 */
 232         u16             tfstat;         /* PSC + 0x84 */
 233         u16             reserved26;
 234         u8              tfcntl;         /* PSC + 0x88 */
 235         u8              reserved27[5];
 236         u16             tfalarm;        /* PSC + 0x8e */
 237         u16             reserved28;
 238         u16             tfrptr;         /* PSC + 0x92 */
 239         u16             reserved29;
 240         u16             tfwptr;         /* PSC + 0x96 */
 241         u16             reserved30;
 242         u16             tflrfptr;       /* PSC + 0x9a */
 243         u16             reserved31;
 244         u16             tflwfptr;       /* PSC + 0x9e */
 245 };
 246
 247 #define MPC512x_PSC_FIFO_RESET_SLICE    0x80
 248 #define MPC512x_PSC_FIFO_ENABLE_SLICE   0x01
 249 #define MPC512x_PSC_FIFO_ENABLE_DMA     0x04
 250
 251 #define MPC512x_PSC_FIFO_EMPTY          0x1
 252 #define MPC512x_PSC_FIFO_FULL           0x2
 253 #define MPC512x_PSC_FIFO_ALARM          0x4
 254 #define MPC512x_PSC_FIFO_URERR          0x8
 255 #define MPC512x_PSC_FIFO_ORERR          0x01
 256 #define MPC512x_PSC_FIFO_MEMERROR       0x02
 257
 258 struct mpc512x_psc_fifo {
 259         u32             reserved1[10];
 260         u32             txcmd;          /* PSC + 0x80 */
 261         u32             txalarm;        /* PSC + 0x84 */
 262         u32             txsr;           /* PSC + 0x88 */
 263         u32             txisr;          /* PSC + 0x8c */
 264         u32             tximr;          /* PSC + 0x90 */
 265         u32             txcnt;          /* PSC + 0x94 */
 266         u32             txptr;          /* PSC + 0x98 */
 267         u32             txsz;           /* PSC + 0x9c */
 268         u32             reserved2[7];
 269         union {
 270                 u8      txdata_8;
 271                 u16     txdata_16;
 272                 u32     txdata_32;
 273         } txdata;                       /* PSC + 0xbc */
 274 #define txdata_8 txdata.txdata_8
 275 #define txdata_16 txdata.txdata_16
 276 #define txdata_32 txdata.txdata_32
 277         u32             rxcmd;          /* PSC + 0xc0 */
 278         u32             rxalarm;        /* PSC + 0xc4 */
 279         u32             rxsr;           /* PSC + 0xc8 */
 280         u32             rxisr;          /* PSC + 0xcc */
 281         u32             rximr;          /* PSC + 0xd0 */
 282         u32             rxcnt;          /* PSC + 0xd4 */
 283         u32             rxptr;          /* PSC + 0xd8 */
 284         u32             rxsz;           /* PSC + 0xdc */
 285         u32             reserved3[7];
 286         union {
 287                 u8      rxdata_8;
 288                 u16     rxdata_16;
 289                 u32     rxdata_32;
 290         } rxdata;                       /* PSC + 0xfc */
 291 #define rxdata_8 rxdata.rxdata_8
 292 #define rxdata_16 rxdata.rxdata_16
 293 #define rxdata_32 rxdata.rxdata_32
 294 };
 295
 296 #endif  /* __ASM_MPC52xx_PSC_H__ */