uboot/drivers/serial/serial_sh.h
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   1/*
   2 * Copy and modify from linux/drivers/serial/sh-sci.h
   3 */
   4
   5#include <dm/platform_data/serial_sh.h>
   6
   7struct uart_port {
   8        unsigned long   iobase;         /* in/out[bwl] */
   9        unsigned char   *membase;       /* read/write[bwl] */
  10        unsigned long   mapbase;        /* for ioremap */
  11        enum sh_serial_type type;       /* port type */
  12        enum sh_clk_mode clk_mode;      /* clock mode */
  13};
  14
  15#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
  16#include <asm/regs306x.h>
  17#endif
  18#if defined(CONFIG_H8S2678)
  19#include <asm/regs267x.h>
  20#endif
  21
  22#if defined(CONFIG_CPU_SH7706) || \
  23        defined(CONFIG_CPU_SH7707) || \
  24        defined(CONFIG_CPU_SH7708) || \
  25        defined(CONFIG_CPU_SH7709)
  26# define SCPCR  0xA4000116 /* 16 bit SCI and SCIF */
  27# define SCPDR  0xA4000136 /* 8  bit SCI and SCIF */
  28# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
  29#elif defined(CONFIG_CPU_SH7705)
  30# define SCIF0          0xA4400000
  31# define SCIF2          0xA4410000
  32# define SCSMR_Ir       0xA44A0000
  33# define IRDA_SCIF      SCIF0
  34# define SCPCR 0xA4000116
  35# define SCPDR 0xA4000136
  36
  37/* Set the clock source,
  38 * SCIF2 (0xA4410000) -> External clock, SCK pin used as clock input
  39 * SCIF0 (0xA4400000) -> Internal clock, SCK pin as serial clock output
  40 */
  41# define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0
  42#elif defined(CONFIG_CPU_SH7720) || \
  43        defined(CONFIG_CPU_SH7721) || \
  44        defined(CONFIG_ARCH_SH7367) || \
  45        defined(CONFIG_ARCH_SH7377) || \
  46        defined(CONFIG_ARCH_SH7372) || \
  47        defined(CONFIG_SH73A0) || \
  48        defined(CONFIG_R8A7740)
  49# define SCSCR_INIT(port)  0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
  50# define PORT_PTCR         0xA405011EUL
  51# define PORT_PVCR         0xA4050122UL
  52# define SCIF_ORER         0x0200   /* overrun error bit */
  53#elif defined(CONFIG_SH_RTS7751R2D)
  54# define SCSPTR1 0xFFE0001C /* 8 bit SCIF */
  55# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
  56# define SCIF_ORER 0x0001   /* overrun error bit */
  57# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
  58#elif defined(CONFIG_CPU_SH7750)  || \
  59        defined(CONFIG_CPU_SH7750R) || \
  60        defined(CONFIG_CPU_SH7750S) || \
  61        defined(CONFIG_CPU_SH7091)  || \
  62        defined(CONFIG_CPU_SH7751)  || \
  63        defined(CONFIG_CPU_SH7751R)
  64# define SCSPTR1 0xffe0001c /* 8  bit SCI */
  65# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
  66# define SCIF_ORER 0x0001   /* overrun error bit */
  67# define SCSCR_INIT(port) (((port)->type == PORT_SCI) ? \
  68        0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
  69        0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */)
  70#elif defined(CONFIG_CPU_SH7760)
  71# define SCSPTR0 0xfe600024 /* 16 bit SCIF */
  72# define SCSPTR1 0xfe610024 /* 16 bit SCIF */
  73# define SCSPTR2 0xfe620024 /* 16 bit SCIF */
  74# define SCIF_ORER 0x0001  /* overrun error bit */
  75# define SCSCR_INIT(port)          0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
  76#elif defined(CONFIG_CPU_SH7710) || defined(CONFIG_CPU_SH7712)
  77# define SCSPTR0 0xA4400000       /* 16 bit SCIF */
  78# define SCIF_ORER 0x0001   /* overrun error bit */
  79# define PACR 0xa4050100
  80# define PBCR 0xa4050102
  81# define SCSCR_INIT(port)          0x3B
  82#elif defined(CONFIG_CPU_SH7343)
  83# define SCSPTR0 0xffe00010     /* 16 bit SCIF */
  84# define SCSPTR1 0xffe10010     /* 16 bit SCIF */
  85# define SCSPTR2 0xffe20010     /* 16 bit SCIF */
  86# define SCSPTR3 0xffe30010     /* 16 bit SCIF */
  87# define SCSCR_INIT(port) 0x32  /* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */
  88#elif defined(CONFIG_CPU_SH7722)
  89# define PADR                   0xA4050120
  90# undef PSDR
  91# define PSDR                   0xA405013e
  92# define PWDR                   0xA4050166
  93# define PSCR                   0xA405011E
  94# define SCIF_ORER              0x0001  /* overrun error bit */
  95# define SCSCR_INIT(port)       0x0038  /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
  96#elif defined(CONFIG_CPU_SH7366)
  97# define SCPDR0                 0xA405013E      /* 16 bit SCIF0 PSDR */
  98# define SCSPTR0                SCPDR0
  99# define SCIF_ORER              0x0001  /* overrun error bit */
 100# define SCSCR_INIT(port)       0x0038  /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 101#elif defined(CONFIG_CPU_SH7723)
 102# define SCSPTR0                0xa4050160
 103# define SCSPTR1                0xa405013e
 104# define SCSPTR2                0xa4050160
 105# define SCSPTR3                0xa405013e
 106# define SCSPTR4                0xa4050128
 107# define SCSPTR5                0xa4050128
 108# define SCIF_ORER              0x0001  /* overrun error bit */
 109# define SCSCR_INIT(port)       0x0038  /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 110#elif defined(CONFIG_CPU_SH7724)
 111# define SCIF_ORER              0x0001  /* overrun error bit */
 112# define SCSCR_INIT(port) ((port)->type == PORT_SCIFA ? \
 113        0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
 114        0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */)
 115#elif defined(CONFIG_CPU_SH7734)
 116# define SCSPTR0 0xFFE40020
 117# define SCSPTR1 0xFFE41020
 118# define SCSPTR2 0xFFE42020
 119# define SCSPTR3 0xFFE43020
 120# define SCSPTR4 0xFFE44020
 121# define SCSPTR5 0xFFE45020
 122# define SCIF_ORER 0x0001  /* overrun error bit */
 123# define SCSCR_INIT(port) 0x0038  /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 124#elif defined(CONFIG_CPU_SH4_202)
 125# define SCSPTR2 0xffe80020 /* 16 bit SCIF */
 126# define SCIF_ORER 0x0001   /* overrun error bit */
 127# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 128#elif defined(CONFIG_CPU_SH5_101) || defined(CONFIG_CPU_SH5_103)
 129# define SCIF_BASE_ADDR    0x01030000
 130# define SCIF_ADDR_SH5     (PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR)
 131# define SCIF_PTR2_OFFS    0x0000020
 132# define SCIF_LSR2_OFFS    0x0000024
 133# define SCSPTR\
 134                ((port->mapbase)+SCIF_PTR2_OFFS) /* 16 bit SCIF */
 135# define SCLSR2\
 136                ((port->mapbase)+SCIF_LSR2_OFFS) /* 16 bit SCIF */
 137# define SCSCR_INIT(port)  0x38         /* TIE=0,RIE=0, TE=1,RE=1,REIE=1 */
 138#elif defined(CONFIG_H83007) || defined(CONFIG_H83068)
 139# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
 140# define H8300_SCI_DR(ch) (*(volatile char *)(P1DR + h8300_sci_pins[ch].port))
 141#elif defined(CONFIG_H8S2678)
 142# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
 143# define H8300_SCI_DR(ch) (*(volatile char *)(P1DR + h8300_sci_pins[ch].port))
 144#elif defined(CONFIG_CPU_SH7757) || \
 145        defined(CONFIG_CPU_SH7752) || \
 146        defined(CONFIG_CPU_SH7753)
 147# define SCSPTR0 0xfe4b0020
 148# define SCSPTR1 0xfe4b0020
 149# define SCSPTR2 0xfe4b0020
 150# define SCIF_ORER 0x0001
 151# define SCSCR_INIT(port)       0x38
 152# define SCIF_ONLY
 153#elif defined(CONFIG_CPU_SH7763)
 154# define SCSPTR0 0xffe00024 /* 16 bit SCIF */
 155# define SCSPTR1 0xffe08024 /* 16 bit SCIF */
 156# define SCSPTR2 0xffe10020 /* 16 bit SCIF/IRDA */
 157# define SCIF_ORER 0x0001  /* overrun error bit */
 158# define SCSCR_INIT(port)       0x38    /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 159#elif defined(CONFIG_CPU_SH7770)
 160# define SCSPTR0 0xff923020 /* 16 bit SCIF */
 161# define SCSPTR1 0xff924020 /* 16 bit SCIF */
 162# define SCSPTR2 0xff925020 /* 16 bit SCIF */
 163# define SCIF_ORER 0x0001  /* overrun error bit */
 164# define SCSCR_INIT(port)       0x3c /* TIE=0,RIE=0,TE=1,RE=1,REIE=1,cke=2 */
 165#elif defined(CONFIG_CPU_SH7780)
 166# define SCSPTR0        0xffe00024      /* 16 bit SCIF */
 167# define SCSPTR1        0xffe10024      /* 16 bit SCIF */
 168# define SCIF_ORER      0x0001          /* Overrun error bit */
 169
 170#if defined(CONFIG_SH_SH2007)
 171/* TIE=0,RIE=0,TE=1,RE=1,REIE=1,CKE1=0 */
 172# define SCSCR_INIT(port)       0x38
 173#else
 174/* TIE=0,RIE=0,TE=1,RE=1,REIE=1,CKE1=1 */
 175# define SCSCR_INIT(port)       0x3a
 176#endif
 177
 178#elif defined(CONFIG_CPU_SH7785) || \
 179        defined(CONFIG_CPU_SH7786)
 180# define SCSPTR0        0xffea0024      /* 16 bit SCIF */
 181# define SCSPTR1        0xffeb0024      /* 16 bit SCIF */
 182# define SCSPTR2        0xffec0024      /* 16 bit SCIF */
 183# define SCSPTR3        0xffed0024      /* 16 bit SCIF */
 184# define SCSPTR4        0xffee0024      /* 16 bit SCIF */
 185# define SCSPTR5        0xffef0024      /* 16 bit SCIF */
 186# define SCIF_ORER      0x0001          /* Overrun error bit */
 187# define SCSCR_INIT(port)       0x3a    /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 188#elif defined(CONFIG_CPU_SH7201) || \
 189        defined(CONFIG_CPU_SH7203) || \
 190        defined(CONFIG_CPU_SH7206) || \
 191        defined(CONFIG_CPU_SH7263) || \
 192        defined(CONFIG_CPU_SH7264)
 193# define SCSPTR0 0xfffe8020 /* 16 bit SCIF */
 194# define SCSPTR1 0xfffe8820 /* 16 bit SCIF */
 195# define SCSPTR2 0xfffe9020 /* 16 bit SCIF */
 196# define SCSPTR3 0xfffe9820 /* 16 bit SCIF */
 197# if defined(CONFIG_CPU_SH7201)
 198#  define SCSPTR4 0xfffeA020 /* 16 bit SCIF */
 199#  define SCSPTR5 0xfffeA820 /* 16 bit SCIF */
 200#  define SCSPTR6 0xfffeB020 /* 16 bit SCIF */
 201#  define SCSPTR7 0xfffeB820 /* 16 bit SCIF */
 202# endif
 203# define SCSCR_INIT(port)       0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 204#elif defined(CONFIG_CPU_SH7269)
 205# define SCSPTR0 0xe8007020 /* 16 bit SCIF */
 206# define SCSPTR1 0xe8007820 /* 16 bit SCIF */
 207# define SCSPTR2 0xe8008020 /* 16 bit SCIF */
 208# define SCSPTR3 0xe8008820 /* 16 bit SCIF */
 209# define SCSPTR4 0xe8009020 /* 16 bit SCIF */
 210# define SCSPTR5 0xe8009820 /* 16 bit SCIF */
 211# define SCSPTR6 0xe800a020 /* 16 bit SCIF */
 212# define SCSPTR7 0xe800a820 /* 16 bit SCIF */
 213# define SCSCR_INIT(port)       0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 214#elif defined(CONFIG_CPU_SH7619)
 215# define SCSPTR0 0xf8400020 /* 16 bit SCIF */
 216# define SCSPTR1 0xf8410020 /* 16 bit SCIF */
 217# define SCSPTR2 0xf8420020 /* 16 bit SCIF */
 218# define SCIF_ORER 0x0001  /* overrun error bit */
 219# define SCSCR_INIT(port)       0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 220#elif defined(CONFIG_CPU_SHX3)
 221# define SCSPTR0 0xffc30020             /* 16 bit SCIF */
 222# define SCSPTR1 0xffc40020             /* 16 bit SCIF */
 223# define SCSPTR2 0xffc50020             /* 16 bit SCIF */
 224# define SCSPTR3 0xffc60020             /* 16 bit SCIF */
 225# define SCIF_ORER 0x0001               /* Overrun error bit */
 226# define SCSCR_INIT(port)       0x38    /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 227#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
 228        defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
 229# define SCIF_ORER      0x0001
 230# define SCSCR_INIT(port)       (port->clk_mode == EXT_CLK ? 0x32 : 0x30)
 231                                /* TIE=0,RIE=0,TE=1,RE=1,REIE=0, */
 232#else
 233# error CPU subtype not defined
 234#endif
 235
 236/* SCSCR */
 237#define SCI_CTRL_FLAGS_TIE  0x80 /* all */
 238#define SCI_CTRL_FLAGS_RIE  0x40 /* all */
 239#define SCI_CTRL_FLAGS_TE   0x20 /* all */
 240#define SCI_CTRL_FLAGS_RE   0x10 /* all */
 241#if defined(CONFIG_CPU_SH7750)  || \
 242        defined(CONFIG_CPU_SH7091)  || \
 243        defined(CONFIG_CPU_SH7750R) || \
 244        defined(CONFIG_CPU_SH7722)  || \
 245        defined(CONFIG_CPU_SH7734)  || \
 246        defined(CONFIG_CPU_SH7750S) || \
 247        defined(CONFIG_CPU_SH7751)  || \
 248        defined(CONFIG_CPU_SH7751R) || \
 249        defined(CONFIG_CPU_SH7763)  || \
 250        defined(CONFIG_CPU_SH7780)  || \
 251        defined(CONFIG_CPU_SH7785)  || \
 252        defined(CONFIG_CPU_SH7786)  || \
 253        defined(CONFIG_CPU_SHX3)
 254#define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
 255#elif defined(CONFIG_CPU_SH7724)
 256#define SCI_CTRL_FLAGS_REIE ((port)->type == PORT_SCIFA ? 0 : 8)
 257#else
 258#define SCI_CTRL_FLAGS_REIE 0
 259#endif
 260/*              SCI_CTRL_FLAGS_MPIE 0x08  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 261/*              SCI_CTRL_FLAGS_TEIE 0x04  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 262/*              SCI_CTRL_FLAGS_CKE1 0x02  * all */
 263/*              SCI_CTRL_FLAGS_CKE0 0x01  * 7707 SCI/SCIF, 7708 SCI, 7709 SCI/SCIF, 7750 SCI */
 264
 265/* SCxSR SCI */
 266#define SCI_TDRE  0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 267#define SCI_RDRF  0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 268#define SCI_ORER  0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 269#define SCI_FER   0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 270#define SCI_PER   0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 271#define SCI_TEND  0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 272/*      SCI_MPB   0x02  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 273/*      SCI_MPBT  0x01  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
 274
 275#define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER)
 276
 277/* SCxSR SCIF */
 278#define SCIF_ER    0x0080 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 279#define SCIF_TEND  0x0040 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 280#define SCIF_TDFE  0x0020 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 281#define SCIF_BRK   0x0010 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 282#define SCIF_FER   0x0008 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 283#define SCIF_PER   0x0004 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 284#define SCIF_RDF   0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 285#define SCIF_DR    0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 286
 287#if defined(CONFIG_CPU_SH7705) || \
 288        defined(CONFIG_CPU_SH7720) || \
 289        defined(CONFIG_CPU_SH7721) || \
 290        defined(CONFIG_ARCH_SH7367) || \
 291        defined(CONFIG_ARCH_SH7377) || \
 292        defined(CONFIG_ARCH_SH7372) || \
 293        defined(CONFIG_SH73A0) || \
 294        defined(CONFIG_R8A7740)
 295# define SCIF_ORER    0x0200
 296# define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER)
 297# define SCIF_RFDC_MASK 0x007f
 298# define SCIF_TXROOM_MAX 64
 299#elif defined(CONFIG_CPU_SH7763)
 300# define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
 301# define SCIF_RFDC_MASK 0x007f
 302# define SCIF_TXROOM_MAX 64
 303/* SH7763 SCIF2 support */
 304# define SCIF2_RFDC_MASK 0x001f
 305# define SCIF2_TXROOM_MAX 16
 306#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
 307        defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
 308# define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
 309# define SCIF_RFDC_MASK 0x003f
 310#else
 311# define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
 312# define SCIF_RFDC_MASK 0x001f
 313# define SCIF_TXROOM_MAX 16
 314#endif
 315
 316#ifndef SCIF_ORER
 317#define SCIF_ORER       0x0000
 318#endif
 319
 320#define SCxSR_TEND(port)\
 321                (((port)->type == PORT_SCI) ? SCI_TEND  : SCIF_TEND)
 322#define SCxSR_ERRORS(port)\
 323                (((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)
 324#define SCxSR_RDxF(port)\
 325                (((port)->type == PORT_SCI) ? SCI_RDRF  : SCIF_RDF)
 326#define SCxSR_TDxE(port)\
 327                (((port)->type == PORT_SCI) ? SCI_TDRE  : SCIF_TDFE)
 328#define SCxSR_FER(port)\
 329                (((port)->type == PORT_SCI) ? SCI_FER   : SCIF_FER)
 330#define SCxSR_PER(port)\
 331                (((port)->type == PORT_SCI) ? SCI_PER   : SCIF_PER)
 332#define SCxSR_BRK(port)\
 333                ((port)->type == PORT_SCI) ? 0x00               : SCIF_BRK)
 334#define SCxSR_ORER(port)\
 335                (((port)->type == PORT_SCI) ? SCI_ORER  : SCIF_ORER)
 336
 337#if defined(CONFIG_CPU_SH7705) || \
 338        defined(CONFIG_CPU_SH7720) || \
 339        defined(CONFIG_CPU_SH7721) || \
 340        defined(CONFIG_ARCH_SH7367) || \
 341        defined(CONFIG_ARCH_SH7377) || \
 342        defined(CONFIG_ARCH_SH7372) || \
 343        defined(CONFIG_SH73A0) || \
 344        defined(CONFIG_R8A7740)
 345# define SCxSR_RDxF_CLEAR(port)  (sci_in(port, SCxSR) & 0xfffc)
 346# define SCxSR_ERROR_CLEAR(port) (sci_in(port, SCxSR) & 0xfd73)
 347# define SCxSR_TDxE_CLEAR(port)  (sci_in(port, SCxSR) & 0xffdf)
 348# define SCxSR_BREAK_CLEAR(port) (sci_in(port, SCxSR) & 0xffe3)
 349#else
 350# define SCxSR_RDxF_CLEAR(port)  (((port)->type == PORT_SCI) ? 0xbc : 0x00fc)
 351# define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073)
 352# define SCxSR_TDxE_CLEAR(port)  (((port)->type == PORT_SCI) ? 0x78 : 0x00df)
 353# define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3)
 354#endif
 355
 356/* SCFCR */
 357#define SCFCR_RFRST 0x0002
 358#define SCFCR_TFRST 0x0004
 359#define SCFCR_TCRST 0x4000
 360#define SCFCR_MCE   0x0008
 361
 362#define SCI_MAJOR               204
 363#define SCI_MINOR_START         8
 364
 365/* Generic serial flags */
 366#define SCI_RX_THROTTLE         0x0000001
 367
 368#define SCI_MAGIC 0xbabeface
 369
 370/*
 371 * Events are used to schedule things to happen at timer-interrupt
 372 * time, instead of at rs interrupt time.
 373 */
 374#define SCI_EVENT_WRITE_WAKEUP  0
 375
 376#define SCI_IN(size, offset)\
 377        if ((size) == 8) {\
 378                return readb(port->membase + (offset));\
 379        } else {\
 380                return readw(port->membase + (offset));\
 381        }
 382#define SCI_OUT(size, offset, value)\
 383        if ((size) == 8) {\
 384                writeb(value, port->membase + (offset));\
 385        } else if ((size) == 16) {\
 386                writew(value, port->membase + (offset));\
 387        }
 388
 389#define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
 390        static inline unsigned int sci_##name##_in(struct uart_port *port) {\
 391                if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {\
 392                        SCI_IN(scif_size, scif_offset)\
 393                } else { /* PORT_SCI or PORT_SCIFA */\
 394                        SCI_IN(sci_size, sci_offset);\
 395                }\
 396        }\
 397static inline void sci_##name##_out(struct uart_port *port,\
 398                                unsigned int value) {\
 399        if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {\
 400                SCI_OUT(scif_size, scif_offset, value)\
 401        } else {        /* PORT_SCI or PORT_SCIFA */\
 402                SCI_OUT(sci_size, sci_offset, value);\
 403        }\
 404}
 405
 406#ifdef CONFIG_H8300
 407/* h8300 don't have SCIF */
 408#define CPU_SCIF_FNS(name)                                              \
 409        static inline unsigned int sci_##name##_in(struct uart_port *port) {\
 410                return 0;\
 411        }\
 412        static inline void sci_##name##_out(struct uart_port *port,\
 413                                        unsigned int value) {\
 414        }
 415#else
 416#define CPU_SCIF_FNS(name, scif_offset, scif_size)                      \
 417        static inline unsigned int sci_##name##_in(struct uart_port *port) {\
 418                SCI_IN(scif_size, scif_offset);\
 419        }\
 420        static inline void sci_##name##_out(struct uart_port *port,\
 421                                        unsigned int value) {\
 422                SCI_OUT(scif_size, scif_offset, value);\
 423        }
 424#endif
 425
 426#define CPU_SCI_FNS(name, sci_offset, sci_size)\
 427        static inline unsigned int sci_##name##_in(struct uart_port *port) {\
 428                SCI_IN(sci_size, sci_offset);\
 429        }\
 430        static inline void sci_##name##_out(struct uart_port *port,\
 431                                        unsigned int value) {\
 432                SCI_OUT(sci_size, sci_offset, value);\
 433        }
 434
 435#if defined(CONFIG_CPU_SH3) || \
 436        defined(CONFIG_ARCH_SH7367) || \
 437        defined(CONFIG_ARCH_SH7377) || \
 438        defined(CONFIG_ARCH_SH7372) || \
 439        defined(CONFIG_SH73A0) || \
 440        defined(CONFIG_R8A7740)
 441#if defined(CONFIG_CPU_SH7710) || defined(CONFIG_CPU_SH7712)
 442#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\
 443                                sh4_sci_offset, sh4_sci_size, \
 444                                sh3_scif_offset, sh3_scif_size, \
 445                                sh4_scif_offset, sh4_scif_size, \
 446                                h8_sci_offset, h8_sci_size) \
 447        CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size,\
 448                                sh4_scif_offset, sh4_scif_size)
 449#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\
 450                                sh4_scif_offset, sh4_scif_size) \
 451        CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
 452#elif defined(CONFIG_CPU_SH7705) || \
 453        defined(CONFIG_CPU_SH7720) || \
 454        defined(CONFIG_CPU_SH7721) || \
 455        defined(CONFIG_ARCH_SH7367) || \
 456        defined(CONFIG_ARCH_SH7377) || \
 457        defined(CONFIG_SH73A0)
 458#define SCIF_FNS(name, scif_offset, scif_size) \
 459        CPU_SCIF_FNS(name, scif_offset, scif_size)
 460#elif defined(CONFIG_ARCH_SH7372) || \
 461        defined(CONFIG_R8A7740)
 462#define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\
 463                                sh4_scifb_offset, sh4_scifb_size) \
 464        CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\
 465                                sh4_scifb_offset, sh4_scifb_size)
 466#define SCIF_FNS(name, scif_offset, scif_size) \
 467        CPU_SCIF_FNS(name, scif_offset, scif_size)
 468#else
 469#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\
 470                                sh4_sci_offset, sh4_sci_size, \
 471                                sh3_scif_offset, sh3_scif_size,\
 472                                sh4_scif_offset, sh4_scif_size, \
 473                                h8_sci_offset, h8_sci_size) \
 474        CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\
 475                                sh3_scif_offset, sh3_scif_size)
 476#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\
 477                                sh4_scif_offset, sh4_scif_size) \
 478        CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size)
 479#endif
 480#elif defined(__H8300H__) || defined(__H8300S__)
 481#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\
 482                                sh4_sci_offset, sh4_sci_size, \
 483                                sh3_scif_offset, sh3_scif_size,\
 484                                sh4_scif_offset, sh4_scif_size, \
 485                                h8_sci_offset, h8_sci_size) \
 486        CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size)
 487#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\
 488                                        sh4_scif_offset, sh4_scif_size) \
 489        CPU_SCIF_FNS(name)
 490#elif defined(CONFIG_CPU_SH7723) || defined(CONFIG_CPU_SH7724)
 491                #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\
 492                                        sh4_scif_offset, sh4_scif_size) \
 493                        CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\
 494                                        sh4_scif_offset, sh4_scif_size)
 495                #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \
 496                        CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
 497#else
 498#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\
 499                                sh4_sci_offset, sh4_sci_size, \
 500                                sh3_scif_offset, sh3_scif_size,\
 501                                sh4_scif_offset, sh4_scif_size, \
 502                                h8_sci_offset, h8_sci_size) \
 503        CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size,\
 504                                        sh4_scif_offset, sh4_scif_size)
 505#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, \
 506                                sh4_scif_offset, sh4_scif_size) \
 507        CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
 508#endif
 509
 510#if defined(CONFIG_CPU_SH7705) || \
 511        defined(CONFIG_CPU_SH7720) || \
 512        defined(CONFIG_CPU_SH7721) || \
 513        defined(CONFIG_ARCH_SH7367) || \
 514        defined(CONFIG_ARCH_SH7377) || \
 515        defined(CONFIG_SH73A0)
 516
 517SCIF_FNS(SCSMR,  0x00, 16)
 518SCIF_FNS(SCBRR,  0x04,  8)
 519SCIF_FNS(SCSCR,  0x08, 16)
 520SCIF_FNS(SCTDSR, 0x0c,  8)
 521SCIF_FNS(SCFER,  0x10, 16)
 522SCIF_FNS(SCxSR,  0x14, 16)
 523SCIF_FNS(SCFCR,  0x18, 16)
 524SCIF_FNS(SCFDR,  0x1c, 16)
 525SCIF_FNS(SCxTDR, 0x20,  8)
 526SCIF_FNS(SCxRDR, 0x24,  8)
 527SCIF_FNS(SCLSR,  0x00,  0)
 528SCIF_FNS(DL,     0x00,  0) /* dummy */
 529#elif defined(CONFIG_ARCH_SH7372) || \
 530        defined(CONFIG_R8A7740)
 531SCIF_FNS(SCSMR,  0x00, 16)
 532SCIF_FNS(SCBRR,  0x04,  8)
 533SCIF_FNS(SCSCR,  0x08, 16)
 534SCIF_FNS(SCTDSR, 0x0c, 16)
 535SCIF_FNS(SCFER,  0x10, 16)
 536SCIF_FNS(SCxSR,  0x14, 16)
 537SCIF_FNS(SCFCR,  0x18, 16)
 538SCIF_FNS(SCFDR,  0x1c, 16)
 539SCIF_FNS(SCTFDR, 0x38, 16)
 540SCIF_FNS(SCRFDR, 0x3c, 16)
 541SCIx_FNS(SCxTDR, 0x20,  8, 0x40,  8)
 542SCIx_FNS(SCxRDR, 0x24,  8, 0x60,  8)
 543SCIF_FNS(SCLSR,  0x00,  0)
 544SCIF_FNS(DL,     0x00,  0) /* dummy */
 545#elif defined(CONFIG_CPU_SH7723) ||\
 546        defined(CONFIG_CPU_SH7724)
 547SCIx_FNS(SCSMR,  0x00, 16, 0x00, 16)
 548SCIx_FNS(SCBRR,  0x04,  8, 0x04,  8)
 549SCIx_FNS(SCSCR,  0x08, 16, 0x08, 16)
 550SCIx_FNS(SCxTDR, 0x20,  8, 0x0c,  8)
 551SCIx_FNS(SCxSR,  0x14, 16, 0x10, 16)
 552SCIx_FNS(SCxRDR, 0x24,  8, 0x14,  8)
 553SCIx_FNS(SCSPTR, 0,     0,    0,  0)
 554SCIF_FNS(SCTDSR, 0x0c,  8)
 555SCIF_FNS(SCFER,  0x10, 16)
 556SCIF_FNS(SCFCR,  0x18, 16)
 557SCIF_FNS(SCFDR,  0x1c, 16)
 558SCIF_FNS(SCLSR,  0x24, 16)
 559SCIF_FNS(DL,     0x00,  0) /* dummy */
 560#else
 561/*      reg      SCI/SH3   SCI/SH4  SCIF/SH3   SCIF/SH4  SCI/H8*/
 562/*      name     off  sz   off  sz   off  sz   off  sz   off  sz*/
 563SCIx_FNS(SCSMR,  0x00,  8, 0x00,  8, 0x00,  8, 0x00, 16, 0x00,  8)
 564SCIx_FNS(SCBRR,  0x02,  8, 0x04,  8, 0x02,  8, 0x04,  8, 0x01,  8)
 565SCIx_FNS(SCSCR,  0x04,  8, 0x08,  8, 0x04,  8, 0x08, 16, 0x02,  8)
 566SCIx_FNS(SCxTDR, 0x06,  8, 0x0c,  8, 0x06,  8, 0x0C,  8, 0x03,  8)
 567SCIx_FNS(SCxSR,  0x08,  8, 0x10,  8, 0x08, 16, 0x10, 16, 0x04,  8)
 568SCIx_FNS(SCxRDR, 0x0a,  8, 0x14,  8, 0x0A,  8, 0x14,  8, 0x05,  8)
 569SCIF_FNS(SCFCR,                      0x0c,  8, 0x18, 16)
 570#if defined(CONFIG_CPU_SH7760) || \
 571        defined(CONFIG_CPU_SH7780) || \
 572        defined(CONFIG_CPU_SH7785) || \
 573        defined(CONFIG_CPU_SH7786)
 574SCIF_FNS(SCFDR,                      0x0e, 16, 0x1C, 16)
 575SCIF_FNS(SCTFDR,                     0x0e, 16, 0x1C, 16)
 576SCIF_FNS(SCRFDR,                     0x0e, 16, 0x20, 16)
 577SCIF_FNS(SCSPTR,                        0,  0, 0x24, 16)
 578SCIF_FNS(SCLSR,                         0,  0, 0x28, 16)
 579#elif defined(CONFIG_CPU_SH7763)
 580SCIF_FNS(SCFDR,                         0,  0, 0x1C, 16)
 581SCIF_FNS(SCSPTR2,                       0,  0, 0x20, 16)
 582SCIF_FNS(SCLSR2,                        0,  0, 0x24, 16)
 583SCIF_FNS(SCTFDR,                     0x0e, 16, 0x1C, 16)
 584SCIF_FNS(SCRFDR,                     0x0e, 16, 0x20, 16)
 585SCIF_FNS(SCSPTR,                        0,  0, 0x24, 16)
 586SCIF_FNS(SCLSR,                         0,  0, 0x28, 16)
 587#else
 588
 589SCIF_FNS(SCFDR,                      0x0e, 16, 0x1C, 16)
 590#if defined(CONFIG_CPU_SH7722)
 591SCIF_FNS(SCSPTR,                        0,  0, 0, 0)
 592#else
 593SCIF_FNS(SCSPTR,                        0,  0, 0x20, 16)
 594#endif
 595SCIF_FNS(SCLSR,                         0,  0, 0x24, 16)
 596#endif
 597#if defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
 598        defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
 599SCIF_FNS(DL,                            0,  0, 0x30, 16)
 600SCIF_FNS(CKS,                           0,  0, 0x34, 16)
 601#else
 602SCIF_FNS(DL,                            0,  0, 0x0,  0) /* dummy */
 603#endif
 604#endif
 605#define sci_in(port, reg) sci_##reg##_in(port)
 606#define sci_out(port, reg, value) sci_##reg##_out(port, value)
 607
 608/* H8/300 series SCI pins assignment */
 609#if defined(__H8300H__) || defined(__H8300S__)
 610static const struct __attribute__((packed)) {
 611        int port;             /* GPIO port no */
 612        unsigned short rx, tx; /* GPIO bit no */
 613} h8300_sci_pins[] = {
 614#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
 615        {    /* SCI0 */
 616                .port = H8300_GPIO_P9,
 617                .rx   = H8300_GPIO_B2,
 618                .tx   = H8300_GPIO_B0,
 619        },
 620        {    /* SCI1 */
 621                .port = H8300_GPIO_P9,
 622                .rx   = H8300_GPIO_B3,
 623                .tx   = H8300_GPIO_B1,
 624        },
 625        {    /* SCI2 */
 626                .port = H8300_GPIO_PB,
 627                .rx   = H8300_GPIO_B7,
 628                .tx   = H8300_GPIO_B6,
 629        }
 630#elif defined(CONFIG_H8S2678)
 631        {    /* SCI0 */
 632                .port = H8300_GPIO_P3,
 633                .rx   = H8300_GPIO_B2,
 634                .tx   = H8300_GPIO_B0,
 635        },
 636        {    /* SCI1 */
 637                .port = H8300_GPIO_P3,
 638                .rx   = H8300_GPIO_B3,
 639                .tx   = H8300_GPIO_B1,
 640        },
 641        {    /* SCI2 */
 642                .port = H8300_GPIO_P5,
 643                .rx   = H8300_GPIO_B1,
 644                .tx   = H8300_GPIO_B0,
 645        }
 646#endif
 647};
 648#endif
 649
 650#if defined(CONFIG_CPU_SH7706) || \
 651        defined(CONFIG_CPU_SH7707) || \
 652        defined(CONFIG_CPU_SH7708) || \
 653        defined(CONFIG_CPU_SH7709)
 654static inline int sci_rxd_in(struct uart_port *port)
 655{
 656        if (port->mapbase == 0xfffffe80)
 657                return __raw_readb(SCPDR)&0x01 ? 1 : 0; /* SCI */
 658        return 1;
 659}
 660#elif defined(CONFIG_CPU_SH7750)  || \
 661        defined(CONFIG_CPU_SH7751)  || \
 662        defined(CONFIG_CPU_SH7751R) || \
 663        defined(CONFIG_CPU_SH7750R) || \
 664        defined(CONFIG_CPU_SH7750S) || \
 665        defined(CONFIG_CPU_SH7091)
 666static inline int sci_rxd_in(struct uart_port *port)
 667{
 668        if (port->mapbase == 0xffe00000)
 669                return __raw_readb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */
 670        return 1;
 671}
 672#elif defined(__H8300H__) || defined(__H8300S__)
 673static inline int sci_rxd_in(struct uart_port *port)
 674{
 675        int ch = (port->mapbase - SMR0) >> 3;
 676        return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0;
 677}
 678#else /* default case for non-SCI processors */
 679static inline int sci_rxd_in(struct uart_port *port)
 680{
 681        return 1;
 682}
 683#endif
 684
 685/*
 686 * Values for the BitRate Register (SCBRR)
 687 *
 688 * The values are actually divisors for a frequency which can
 689 * be internal to the SH3 (14.7456MHz) or derived from an external
 690 * clock source.  This driver assumes the internal clock is used;
 691 * to support using an external clock source, config options or
 692 * possibly command-line options would need to be added.
 693 *
 694 * Also, to support speeds below 2400 (why?) the lower 2 bits of
 695 * the SCSMR register would also need to be set to non-zero values.
 696 *
 697 * -- Greg Banks 27Feb2000
 698 *
 699 * Answer: The SCBRR register is only eight bits, and the value in
 700 * it gets larger with lower baud rates. At around 2400 (depending on
 701 * the peripherial module clock) you run out of bits. However the
 702 * lower two bits of SCSMR allow the module clock to be divided down,
 703 * scaling the value which is needed in SCBRR.
 704 *
 705 * -- Stuart Menefy - 23 May 2000
 706 *
 707 * I meant, why would anyone bother with bitrates below 2400.
 708 *
 709 * -- Greg Banks - 7Jul2000
 710 *
 711 * You "speedist"!  How will I use my 110bps ASR-33 teletype with paper
 712 * tape reader as a console!
 713 *
 714 * -- Mitch Davis - 15 Jul 2000
 715 */
 716
 717#if (defined(CONFIG_CPU_SH7780)  || \
 718        defined(CONFIG_CPU_SH7785)  || \
 719        defined(CONFIG_CPU_SH7786)) && \
 720        !defined(CONFIG_SH_SH2007)
 721#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
 722#elif defined(CONFIG_CPU_SH7705) || \
 723        defined(CONFIG_CPU_SH7720) || \
 724        defined(CONFIG_CPU_SH7721) || \
 725        defined(CONFIG_ARCH_SH7367) || \
 726        defined(CONFIG_ARCH_SH7377) || \
 727        defined(CONFIG_ARCH_SH7372) || \
 728        defined(CONFIG_SH73A0) || \
 729        defined(CONFIG_R8A7740)
 730#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
 731#elif defined(CONFIG_CPU_SH7723) ||\
 732        defined(CONFIG_CPU_SH7724)
 733static inline int scbrr_calc(struct uart_port *port, int bps, int clk)
 734{
 735        if (port->type == PORT_SCIF)
 736                return (clk+16*bps)/(32*bps)-1;
 737        else
 738                return ((clk*2)+16*bps)/(16*bps)-1;
 739}
 740#define SCBRR_VALUE(bps, clk) scbrr_calc(port, bps, clk)
 741#elif defined(__H8300H__) || defined(__H8300S__)
 742#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
 743#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
 744        defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
 745#define DL_VALUE(bps, clk) (clk / bps / 16) /* External Clock */
 746#define SCBRR_VALUE(bps, clk) (clk / bps / 32 - 1) /* Internal Clock */
 747#else /* Generic SH */
 748#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
 749#endif
 750
 751#ifndef DL_VALUE
 752#define DL_VALUE(bps, clk) 0
 753#endif
 754