1 /* 2 * Copy and modify from linux/drivers/serial/sh-sci.h 3 */ 4 5 struct uart_port { 6 unsigned long iobase; /* in/out[bwl] */ 7 unsigned char *membase; /* read/write[bwl] */ 8 unsigned long mapbase; /* for ioremap */ 9 unsigned int type; /* port type */ 10 }; 11 12 #define PORT_SCI 52 13 #define PORT_SCIF 53 14 #define PORT_SCIFA 83 15 #define PORT_SCIFB 93 16 17 #if defined(CONFIG_H83007) || defined(CONFIG_H83068) 18 #include <asm/regs306x.h> 19 #endif 20 #if defined(CONFIG_H8S2678) 21 #include <asm/regs267x.h> 22 #endif 23 24 #if defined(CONFIG_CPU_SH7706) || \ 25 defined(CONFIG_CPU_SH7707) || \ 26 defined(CONFIG_CPU_SH7708) || \ 27 defined(CONFIG_CPU_SH7709) 28 # define SCPCR 0xA4000116 /* 16 bit SCI and SCIF */ 29 # define SCPDR 0xA4000136 /* 8 bit SCI and SCIF */ 30 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ 31 #elif defined(CONFIG_CPU_SH7705) 32 # define SCIF0 0xA4400000 33 # define SCIF2 0xA4410000 34 # define SCSMR_Ir 0xA44A0000 35 # define IRDA_SCIF SCIF0 36 # define SCPCR 0xA4000116 37 # define SCPDR 0xA4000136 38 39 /* Set the clock source, 40 * SCIF2 (0xA4410000) -> External clock, SCK pin used as clock input 41 * SCIF0 (0xA4400000) -> Internal clock, SCK pin as serial clock output 42 */ 43 # define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0 44 #elif defined(CONFIG_CPU_SH7720) || \ 45 defined(CONFIG_CPU_SH7721) || \ 46 defined(CONFIG_ARCH_SH7367) || \ 47 defined(CONFIG_ARCH_SH7377) || \ 48 defined(CONFIG_ARCH_SH7372) || \ 49 defined(CONFIG_SH73A0) || \ 50 defined(CONFIG_R8A7740) 51 # define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */ 52 # define PORT_PTCR 0xA405011EUL 53 # define PORT_PVCR 0xA4050122UL 54 # define SCIF_ORER 0x0200 /* overrun error bit */ 55 #elif defined(CONFIG_SH_RTS7751R2D) 56 # define SCSPTR1 0xFFE0001C /* 8 bit SCIF */ 57 # define SCSPTR2 0xFFE80020 /* 16 bit SCIF */ 58 # define SCIF_ORER 0x0001 /* overrun error bit */ 59 # define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ 60 #elif defined(CONFIG_CPU_SH7750) || \ 61 defined(CONFIG_CPU_SH7750R) || \ 62 defined(CONFIG_CPU_SH7750S) || \ 63 defined(CONFIG_CPU_SH7091) || \ 64 defined(CONFIG_CPU_SH7751) || \ 65 defined(CONFIG_CPU_SH7751R) 66 # define SCSPTR1 0xffe0001c /* 8 bit SCI */ 67 # define SCSPTR2 0xFFE80020 /* 16 bit SCIF */ 68 # define SCIF_ORER 0x0001 /* overrun error bit */ 69 # define SCSCR_INIT(port) (((port)->type == PORT_SCI) ? \ 70 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \ 71 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */) 72 #elif defined(CONFIG_CPU_SH7760) 73 # define SCSPTR0 0xfe600024 /* 16 bit SCIF */ 74 # define SCSPTR1 0xfe610024 /* 16 bit SCIF */ 75 # define SCSPTR2 0xfe620024 /* 16 bit SCIF */ 76 # define SCIF_ORER 0x0001 /* overrun error bit */ 77 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ 78 #elif defined(CONFIG_CPU_SH7710) || defined(CONFIG_CPU_SH7712) 79 # define SCSPTR0 0xA4400000 /* 16 bit SCIF */ 80 # define SCIF_ORER 0x0001 /* overrun error bit */ 81 # define PACR 0xa4050100 82 # define PBCR 0xa4050102 83 # define SCSCR_INIT(port) 0x3B 84 #elif defined(CONFIG_CPU_SH7343) 85 # define SCSPTR0 0xffe00010 /* 16 bit SCIF */ 86 # define SCSPTR1 0xffe10010 /* 16 bit SCIF */ 87 # define SCSPTR2 0xffe20010 /* 16 bit SCIF */ 88 # define SCSPTR3 0xffe30010 /* 16 bit SCIF */ 89 # define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */ 90 #elif defined(CONFIG_CPU_SH7722) 91 # define PADR 0xA4050120 92 # undef PSDR 93 # define PSDR 0xA405013e 94 # define PWDR 0xA4050166 95 # define PSCR 0xA405011E 96 # define SCIF_ORER 0x0001 /* overrun error bit */ 97 # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ 98 #elif defined(CONFIG_CPU_SH7366) 99 # define SCPDR0 0xA405013E /* 16 bit SCIF0 PSDR */ 100 # define SCSPTR0 SCPDR0 101 # define SCIF_ORER 0x0001 /* overrun error bit */ 102 # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ 103 #elif defined(CONFIG_CPU_SH7723) 104 # define SCSPTR0 0xa4050160 105 # define SCSPTR1 0xa405013e 106 # define SCSPTR2 0xa4050160 107 # define SCSPTR3 0xa405013e 108 # define SCSPTR4 0xa4050128 109 # define SCSPTR5 0xa4050128 110 # define SCIF_ORER 0x0001 /* overrun error bit */ 111 # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ 112 #elif defined(CONFIG_CPU_SH7724) 113 # define SCIF_ORER 0x0001 /* overrun error bit */ 114 # define SCSCR_INIT(port) ((port)->type == PORT_SCIFA ? \ 115 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \ 116 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */) 117 #elif defined(CONFIG_CPU_SH7734) 118 # define SCSPTR0 0xFFE40020 119 # define SCSPTR1 0xFFE41020 120 # define SCSPTR2 0xFFE42020 121 # define SCSPTR3 0xFFE43020 122 # define SCSPTR4 0xFFE44020 123 # define SCSPTR5 0xFFE45020 124 # define SCIF_ORER 0x0001 /* overrun error bit */ 125 # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ 126 #elif defined(CONFIG_CPU_SH4_202) 127 # define SCSPTR2 0xffe80020 /* 16 bit SCIF */ 128 # define SCIF_ORER 0x0001 /* overrun error bit */ 129 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ 130 #elif defined(CONFIG_CPU_SH5_101) || defined(CONFIG_CPU_SH5_103) 131 # define SCIF_BASE_ADDR 0x01030000 132 # define SCIF_ADDR_SH5 (PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR) 133 # define SCIF_PTR2_OFFS 0x0000020 134 # define SCIF_LSR2_OFFS 0x0000024 135 # define SCSPTR\ 136 ((port->mapbase)+SCIF_PTR2_OFFS) /* 16 bit SCIF */ 137 # define SCLSR2\ 138 ((port->mapbase)+SCIF_LSR2_OFFS) /* 16 bit SCIF */ 139 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0, TE=1,RE=1,REIE=1 */ 140 #elif defined(CONFIG_H83007) || defined(CONFIG_H83068) 141 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ 142 # define H8300_SCI_DR(ch) (*(volatile char *)(P1DR + h8300_sci_pins[ch].port)) 143 #elif defined(CONFIG_H8S2678) 144 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ 145 # define H8300_SCI_DR(ch) (*(volatile char *)(P1DR + h8300_sci_pins[ch].port)) 146 #elif defined(CONFIG_CPU_SH7757) || defined(CONFIG_CPU_SH7752) 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 # define SCIF_ORER 0x0001 229 # define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0, */ 230 #else 231 # error CPU subtype not defined 232 #endif 233 234 /* SCSCR */ 235 #define SCI_CTRL_FLAGS_TIE 0x80 /* all */ 236 #define SCI_CTRL_FLAGS_RIE 0x40 /* all */ 237 #define SCI_CTRL_FLAGS_TE 0x20 /* all */ 238 #define SCI_CTRL_FLAGS_RE 0x10 /* all */ 239 #if defined(CONFIG_CPU_SH7750) || \ 240 defined(CONFIG_CPU_SH7091) || \ 241 defined(CONFIG_CPU_SH7750R) || \ 242 defined(CONFIG_CPU_SH7722) || \ 243 defined(CONFIG_CPU_SH7734) || \ 244 defined(CONFIG_CPU_SH7750S) || \ 245 defined(CONFIG_CPU_SH7751) || \ 246 defined(CONFIG_CPU_SH7751R) || \ 247 defined(CONFIG_CPU_SH7763) || \ 248 defined(CONFIG_CPU_SH7780) || \ 249 defined(CONFIG_CPU_SH7785) || \ 250 defined(CONFIG_CPU_SH7786) || \ 251 defined(CONFIG_CPU_SHX3) 252 #define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */ 253 #elif defined(CONFIG_CPU_SH7724) 254 #define SCI_CTRL_FLAGS_REIE ((port)->type == PORT_SCIFA ? 0 : 8) 255 #else 256 #define SCI_CTRL_FLAGS_REIE 0 257 #endif 258 /* SCI_CTRL_FLAGS_MPIE 0x08 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 259 /* SCI_CTRL_FLAGS_TEIE 0x04 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 260 /* SCI_CTRL_FLAGS_CKE1 0x02 * all */ 261 /* SCI_CTRL_FLAGS_CKE0 0x01 * 7707 SCI/SCIF, 7708 SCI, 7709 SCI/SCIF, 7750 SCI */ 262 263 /* SCxSR SCI */ 264 #define SCI_TDRE 0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 265 #define SCI_RDRF 0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 266 #define SCI_ORER 0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 267 #define SCI_FER 0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 268 #define SCI_PER 0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 269 #define SCI_TEND 0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 270 /* SCI_MPB 0x02 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 271 /* SCI_MPBT 0x01 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 272 273 #define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER) 274 275 /* SCxSR SCIF */ 276 #define SCIF_ER 0x0080 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 277 #define SCIF_TEND 0x0040 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 278 #define SCIF_TDFE 0x0020 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 279 #define SCIF_BRK 0x0010 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 280 #define SCIF_FER 0x0008 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 281 #define SCIF_PER 0x0004 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 282 #define SCIF_RDF 0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 283 #define SCIF_DR 0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 284 285 #if defined(CONFIG_CPU_SH7705) || \ 286 defined(CONFIG_CPU_SH7720) || \ 287 defined(CONFIG_CPU_SH7721) || \ 288 defined(CONFIG_ARCH_SH7367) || \ 289 defined(CONFIG_ARCH_SH7377) || \ 290 defined(CONFIG_ARCH_SH7372) || \ 291 defined(CONFIG_SH73A0) || \ 292 defined(CONFIG_R8A7740) 293 # define SCIF_ORER 0x0200 294 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER) 295 # define SCIF_RFDC_MASK 0x007f 296 # define SCIF_TXROOM_MAX 64 297 #elif defined(CONFIG_CPU_SH7763) 298 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) 299 # define SCIF_RFDC_MASK 0x007f 300 # define SCIF_TXROOM_MAX 64 301 /* SH7763 SCIF2 support */ 302 # define SCIF2_RFDC_MASK 0x001f 303 # define SCIF2_TXROOM_MAX 16 304 #elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) 305 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) 306 # define SCIF_RFDC_MASK 0x003f 307 #else 308 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) 309 # define SCIF_RFDC_MASK 0x001f 310 # define SCIF_TXROOM_MAX 16 311 #endif 312 313 #ifndef SCIF_ORER 314 #define SCIF_ORER 0x0000 315 #endif 316 317 #define SCxSR_TEND(port)\ 318 (((port)->type == PORT_SCI) ? SCI_TEND : SCIF_TEND) 319 #define SCxSR_ERRORS(port)\ 320 (((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS) 321 #define SCxSR_RDxF(port)\ 322 (((port)->type == PORT_SCI) ? SCI_RDRF : SCIF_RDF) 323 #define SCxSR_TDxE(port)\ 324 (((port)->type == PORT_SCI) ? SCI_TDRE : SCIF_TDFE) 325 #define SCxSR_FER(port)\ 326 (((port)->type == PORT_SCI) ? SCI_FER : SCIF_FER) 327 #define SCxSR_PER(port)\ 328 (((port)->type == PORT_SCI) ? SCI_PER : SCIF_PER) 329 #define SCxSR_BRK(port)\ 330 ((port)->type == PORT_SCI) ? 0x00 : SCIF_BRK) 331 #define SCxSR_ORER(port)\ 332 (((port)->type == PORT_SCI) ? SCI_ORER : SCIF_ORER) 333 334 #if defined(CONFIG_CPU_SH7705) || \ 335 defined(CONFIG_CPU_SH7720) || \ 336 defined(CONFIG_CPU_SH7721) || \ 337 defined(CONFIG_ARCH_SH7367) || \ 338 defined(CONFIG_ARCH_SH7377) || \ 339 defined(CONFIG_ARCH_SH7372) || \ 340 defined(CONFIG_SH73A0) || \ 341 defined(CONFIG_R8A7740) 342 # define SCxSR_RDxF_CLEAR(port) (sci_in(port, SCxSR) & 0xfffc) 343 # define SCxSR_ERROR_CLEAR(port) (sci_in(port, SCxSR) & 0xfd73) 344 # define SCxSR_TDxE_CLEAR(port) (sci_in(port, SCxSR) & 0xffdf) 345 # define SCxSR_BREAK_CLEAR(port) (sci_in(port, SCxSR) & 0xffe3) 346 #else 347 # define SCxSR_RDxF_CLEAR(port) (((port)->type == PORT_SCI) ? 0xbc : 0x00fc) 348 # define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073) 349 # define SCxSR_TDxE_CLEAR(port) (((port)->type == PORT_SCI) ? 0x78 : 0x00df) 350 # define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3) 351 #endif 352 353 /* SCFCR */ 354 #define SCFCR_RFRST 0x0002 355 #define SCFCR_TFRST 0x0004 356 #define SCFCR_TCRST 0x4000 357 #define SCFCR_MCE 0x0008 358 359 #define SCI_MAJOR 204 360 #define SCI_MINOR_START 8 361 362 /* Generic serial flags */ 363 #define SCI_RX_THROTTLE 0x0000001 364 365 #define SCI_MAGIC 0xbabeface 366 367 /* 368 * Events are used to schedule things to happen at timer-interrupt 369 * time, instead of at rs interrupt time. 370 */ 371 #define SCI_EVENT_WRITE_WAKEUP 0 372 373 #define SCI_IN(size, offset)\ 374 if ((size) == 8) {\ 375 return readb(port->membase + (offset));\ 376 } else {\ 377 return readw(port->membase + (offset));\ 378 } 379 #define SCI_OUT(size, offset, value)\ 380 if ((size) == 8) {\ 381 writeb(value, port->membase + (offset));\ 382 } else if ((size) == 16) {\ 383 writew(value, port->membase + (offset));\ 384 } 385 386 #define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\ 387 static inline unsigned int sci_##name##_in(struct uart_port *port) {\ 388 if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {\ 389 SCI_IN(scif_size, scif_offset)\ 390 } else { /* PORT_SCI or PORT_SCIFA */\ 391 SCI_IN(sci_size, sci_offset);\ 392 }\ 393 }\ 394 static inline void sci_##name##_out(struct uart_port *port,\ 395 unsigned int value) {\ 396 if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {\ 397 SCI_OUT(scif_size, scif_offset, value)\ 398 } else { /* PORT_SCI or PORT_SCIFA */\ 399 SCI_OUT(sci_size, sci_offset, value);\ 400 }\ 401 } 402 403 #ifdef CONFIG_H8300 404 /* h8300 don't have SCIF */ 405 #define CPU_SCIF_FNS(name) \ 406 static inline unsigned int sci_##name##_in(struct uart_port *port) {\ 407 return 0;\ 408 }\ 409 static inline void sci_##name##_out(struct uart_port *port,\ 410 unsigned int value) {\ 411 } 412 #else 413 #define CPU_SCIF_FNS(name, scif_offset, scif_size) \ 414 static inline unsigned int sci_##name##_in(struct uart_port *port) {\ 415 SCI_IN(scif_size, scif_offset);\ 416 }\ 417 static inline void sci_##name##_out(struct uart_port *port,\ 418 unsigned int value) {\ 419 SCI_OUT(scif_size, scif_offset, value);\ 420 } 421 #endif 422 423 #define CPU_SCI_FNS(name, sci_offset, sci_size)\ 424 static inline unsigned int sci_##name##_in(struct uart_port *port) {\ 425 SCI_IN(sci_size, sci_offset);\ 426 }\ 427 static inline void sci_##name##_out(struct uart_port *port,\ 428 unsigned int value) {\ 429 SCI_OUT(sci_size, sci_offset, value);\ 430 } 431 432 #if defined(CONFIG_SH3) || \ 433 defined(CONFIG_ARCH_SH7367) || \ 434 defined(CONFIG_ARCH_SH7377) || \ 435 defined(CONFIG_ARCH_SH7372) || \ 436 defined(CONFIG_SH73A0) || \ 437 defined(CONFIG_R8A7740) 438 #if defined(CONFIG_CPU_SH7710) || defined(CONFIG_CPU_SH7712) 439 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 440 sh4_sci_offset, sh4_sci_size, \ 441 sh3_scif_offset, sh3_scif_size, \ 442 sh4_scif_offset, sh4_scif_size, \ 443 h8_sci_offset, h8_sci_size) \ 444 CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size,\ 445 sh4_scif_offset, sh4_scif_size) 446 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\ 447 sh4_scif_offset, sh4_scif_size) \ 448 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) 449 #elif defined(CONFIG_CPU_SH7705) || \ 450 defined(CONFIG_CPU_SH7720) || \ 451 defined(CONFIG_CPU_SH7721) || \ 452 defined(CONFIG_ARCH_SH7367) || \ 453 defined(CONFIG_ARCH_SH7377) || \ 454 defined(CONFIG_SH73A0) 455 #define SCIF_FNS(name, scif_offset, scif_size) \ 456 CPU_SCIF_FNS(name, scif_offset, scif_size) 457 #elif defined(CONFIG_ARCH_SH7372) || \ 458 defined(CONFIG_R8A7740) 459 #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ 460 sh4_scifb_offset, sh4_scifb_size) \ 461 CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ 462 sh4_scifb_offset, sh4_scifb_size) 463 #define SCIF_FNS(name, scif_offset, scif_size) \ 464 CPU_SCIF_FNS(name, scif_offset, scif_size) 465 #else 466 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 467 sh4_sci_offset, sh4_sci_size, \ 468 sh3_scif_offset, sh3_scif_size,\ 469 sh4_scif_offset, sh4_scif_size, \ 470 h8_sci_offset, h8_sci_size) \ 471 CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 472 sh3_scif_offset, sh3_scif_size) 473 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\ 474 sh4_scif_offset, sh4_scif_size) \ 475 CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size) 476 #endif 477 #elif defined(__H8300H__) || defined(__H8300S__) 478 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 479 sh4_sci_offset, sh4_sci_size, \ 480 sh3_scif_offset, sh3_scif_size,\ 481 sh4_scif_offset, sh4_scif_size, \ 482 h8_sci_offset, h8_sci_size) \ 483 CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size) 484 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\ 485 sh4_scif_offset, sh4_scif_size) \ 486 CPU_SCIF_FNS(name) 487 #elif defined(CONFIG_CPU_SH7723) || defined(CONFIG_CPU_SH7724) 488 #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ 489 sh4_scif_offset, sh4_scif_size) \ 490 CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ 491 sh4_scif_offset, sh4_scif_size) 492 #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \ 493 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) 494 #else 495 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 496 sh4_sci_offset, sh4_sci_size, \ 497 sh3_scif_offset, sh3_scif_size,\ 498 sh4_scif_offset, sh4_scif_size, \ 499 h8_sci_offset, h8_sci_size) \ 500 CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size,\ 501 sh4_scif_offset, sh4_scif_size) 502 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, \ 503 sh4_scif_offset, sh4_scif_size) \ 504 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) 505 #endif 506 507 #if defined(CONFIG_CPU_SH7705) || \ 508 defined(CONFIG_CPU_SH7720) || \ 509 defined(CONFIG_CPU_SH7721) || \ 510 defined(CONFIG_ARCH_SH7367) || \ 511 defined(CONFIG_ARCH_SH7377) || \ 512 defined(CONFIG_SH73A0) 513 514 SCIF_FNS(SCSMR, 0x00, 16) 515 SCIF_FNS(SCBRR, 0x04, 8) 516 SCIF_FNS(SCSCR, 0x08, 16) 517 SCIF_FNS(SCTDSR, 0x0c, 8) 518 SCIF_FNS(SCFER, 0x10, 16) 519 SCIF_FNS(SCxSR, 0x14, 16) 520 SCIF_FNS(SCFCR, 0x18, 16) 521 SCIF_FNS(SCFDR, 0x1c, 16) 522 SCIF_FNS(SCxTDR, 0x20, 8) 523 SCIF_FNS(SCxRDR, 0x24, 8) 524 SCIF_FNS(SCLSR, 0x00, 0) 525 #elif defined(CONFIG_ARCH_SH7372) || \ 526 defined(CONFIG_R8A7740) 527 SCIF_FNS(SCSMR, 0x00, 16) 528 SCIF_FNS(SCBRR, 0x04, 8) 529 SCIF_FNS(SCSCR, 0x08, 16) 530 SCIF_FNS(SCTDSR, 0x0c, 16) 531 SCIF_FNS(SCFER, 0x10, 16) 532 SCIF_FNS(SCxSR, 0x14, 16) 533 SCIF_FNS(SCFCR, 0x18, 16) 534 SCIF_FNS(SCFDR, 0x1c, 16) 535 SCIF_FNS(SCTFDR, 0x38, 16) 536 SCIF_FNS(SCRFDR, 0x3c, 16) 537 SCIx_FNS(SCxTDR, 0x20, 8, 0x40, 8) 538 SCIx_FNS(SCxRDR, 0x24, 8, 0x60, 8) 539 SCIF_FNS(SCLSR, 0x00, 0) 540 #elif defined(CONFIG_CPU_SH7723) ||\ 541 defined(CONFIG_CPU_SH7724) 542 SCIx_FNS(SCSMR, 0x00, 16, 0x00, 16) 543 SCIx_FNS(SCBRR, 0x04, 8, 0x04, 8) 544 SCIx_FNS(SCSCR, 0x08, 16, 0x08, 16) 545 SCIx_FNS(SCxTDR, 0x20, 8, 0x0c, 8) 546 SCIx_FNS(SCxSR, 0x14, 16, 0x10, 16) 547 SCIx_FNS(SCxRDR, 0x24, 8, 0x14, 8) 548 SCIx_FNS(SCSPTR, 0, 0, 0, 0) 549 SCIF_FNS(SCTDSR, 0x0c, 8) 550 SCIF_FNS(SCFER, 0x10, 16) 551 SCIF_FNS(SCFCR, 0x18, 16) 552 SCIF_FNS(SCFDR, 0x1c, 16) 553 SCIF_FNS(SCLSR, 0x24, 16) 554 #else 555 /* reg SCI/SH3 SCI/SH4 SCIF/SH3 SCIF/SH4 SCI/H8*/ 556 /* name off sz off sz off sz off sz off sz*/ 557 SCIx_FNS(SCSMR, 0x00, 8, 0x00, 8, 0x00, 8, 0x00, 16, 0x00, 8) 558 SCIx_FNS(SCBRR, 0x02, 8, 0x04, 8, 0x02, 8, 0x04, 8, 0x01, 8) 559 SCIx_FNS(SCSCR, 0x04, 8, 0x08, 8, 0x04, 8, 0x08, 16, 0x02, 8) 560 SCIx_FNS(SCxTDR, 0x06, 8, 0x0c, 8, 0x06, 8, 0x0C, 8, 0x03, 8) 561 SCIx_FNS(SCxSR, 0x08, 8, 0x10, 8, 0x08, 16, 0x10, 16, 0x04, 8) 562 SCIx_FNS(SCxRDR, 0x0a, 8, 0x14, 8, 0x0A, 8, 0x14, 8, 0x05, 8) 563 SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16) 564 #if defined(CONFIG_CPU_SH7760) || \ 565 defined(CONFIG_CPU_SH7780) || \ 566 defined(CONFIG_CPU_SH7785) || \ 567 defined(CONFIG_CPU_SH7786) 568 SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) 569 SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16) 570 SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16) 571 SCIF_FNS(SCSPTR, 0, 0, 0x24, 16) 572 SCIF_FNS(SCLSR, 0, 0, 0x28, 16) 573 #elif defined(CONFIG_CPU_SH7763) 574 SCIF_FNS(SCFDR, 0, 0, 0x1C, 16) 575 SCIF_FNS(SCSPTR2, 0, 0, 0x20, 16) 576 SCIF_FNS(SCLSR2, 0, 0, 0x24, 16) 577 SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16) 578 SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16) 579 SCIF_FNS(SCSPTR, 0, 0, 0x24, 16) 580 SCIF_FNS(SCLSR, 0, 0, 0x28, 16) 581 #else 582 SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) 583 #if defined(CONFIG_CPU_SH7722) 584 SCIF_FNS(SCSPTR, 0, 0, 0, 0) 585 #else 586 SCIF_FNS(SCSPTR, 0, 0, 0x20, 16) 587 #endif 588 #if defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) 589 SCIF_FNS(DL, 0, 0, 0x30, 16) 590 SCIF_FNS(CKS, 0, 0, 0x34, 16) 591 #endif 592 SCIF_FNS(SCLSR, 0, 0, 0x24, 16) 593 #endif 594 #endif 595 #define sci_in(port, reg) sci_##reg##_in(port) 596 #define sci_out(port, reg, value) sci_##reg##_out(port, value) 597 598 /* H8/300 series SCI pins assignment */ 599 #if defined(__H8300H__) || defined(__H8300S__) 600 static const struct __attribute__((packed)) { 601 int port; /* GPIO port no */ 602 unsigned short rx, tx; /* GPIO bit no */ 603 } h8300_sci_pins[] = { 604 #if defined(CONFIG_H83007) || defined(CONFIG_H83068) 605 { /* SCI0 */ 606 .port = H8300_GPIO_P9, 607 .rx = H8300_GPIO_B2, 608 .tx = H8300_GPIO_B0, 609 }, 610 { /* SCI1 */ 611 .port = H8300_GPIO_P9, 612 .rx = H8300_GPIO_B3, 613 .tx = H8300_GPIO_B1, 614 }, 615 { /* SCI2 */ 616 .port = H8300_GPIO_PB, 617 .rx = H8300_GPIO_B7, 618 .tx = H8300_GPIO_B6, 619 } 620 #elif defined(CONFIG_H8S2678) 621 { /* SCI0 */ 622 .port = H8300_GPIO_P3, 623 .rx = H8300_GPIO_B2, 624 .tx = H8300_GPIO_B0, 625 }, 626 { /* SCI1 */ 627 .port = H8300_GPIO_P3, 628 .rx = H8300_GPIO_B3, 629 .tx = H8300_GPIO_B1, 630 }, 631 { /* SCI2 */ 632 .port = H8300_GPIO_P5, 633 .rx = H8300_GPIO_B1, 634 .tx = H8300_GPIO_B0, 635 } 636 #endif 637 }; 638 #endif 639 640 #if defined(CONFIG_CPU_SH7706) || \ 641 defined(CONFIG_CPU_SH7707) || \ 642 defined(CONFIG_CPU_SH7708) || \ 643 defined(CONFIG_CPU_SH7709) 644 static inline int sci_rxd_in(struct uart_port *port) 645 { 646 if (port->mapbase == 0xfffffe80) 647 return __raw_readb(SCPDR)&0x01 ? 1 : 0; /* SCI */ 648 return 1; 649 } 650 #elif defined(CONFIG_CPU_SH7750) || \ 651 defined(CONFIG_CPU_SH7751) || \ 652 defined(CONFIG_CPU_SH7751R) || \ 653 defined(CONFIG_CPU_SH7750R) || \ 654 defined(CONFIG_CPU_SH7750S) || \ 655 defined(CONFIG_CPU_SH7091) 656 static inline int sci_rxd_in(struct uart_port *port) 657 { 658 if (port->mapbase == 0xffe00000) 659 return __raw_readb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */ 660 return 1; 661 } 662 #elif defined(__H8300H__) || defined(__H8300S__) 663 static inline int sci_rxd_in(struct uart_port *port) 664 { 665 int ch = (port->mapbase - SMR0) >> 3; 666 return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0; 667 } 668 #else /* default case for non-SCI processors */ 669 static inline int sci_rxd_in(struct uart_port *port) 670 { 671 return 1; 672 } 673 #endif 674 675 /* 676 * Values for the BitRate Register (SCBRR) 677 * 678 * The values are actually divisors for a frequency which can 679 * be internal to the SH3 (14.7456MHz) or derived from an external 680 * clock source. This driver assumes the internal clock is used; 681 * to support using an external clock source, config options or 682 * possibly command-line options would need to be added. 683 * 684 * Also, to support speeds below 2400 (why?) the lower 2 bits of 685 * the SCSMR register would also need to be set to non-zero values. 686 * 687 * -- Greg Banks 27Feb2000 688 * 689 * Answer: The SCBRR register is only eight bits, and the value in 690 * it gets larger with lower baud rates. At around 2400 (depending on 691 * the peripherial module clock) you run out of bits. However the 692 * lower two bits of SCSMR allow the module clock to be divided down, 693 * scaling the value which is needed in SCBRR. 694 * 695 * -- Stuart Menefy - 23 May 2000 696 * 697 * I meant, why would anyone bother with bitrates below 2400. 698 * 699 * -- Greg Banks - 7Jul2000 700 * 701 * You "speedist"! How will I use my 110bps ASR-33 teletype with paper 702 * tape reader as a console! 703 * 704 * -- Mitch Davis - 15 Jul 2000 705 */ 706 707 #if (defined(CONFIG_CPU_SH7780) || \ 708 defined(CONFIG_CPU_SH7785) || \ 709 defined(CONFIG_CPU_SH7786)) && \ 710 !defined(CONFIG_SH_SH2007) 711 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1) 712 #elif defined(CONFIG_CPU_SH7705) || \ 713 defined(CONFIG_CPU_SH7720) || \ 714 defined(CONFIG_CPU_SH7721) || \ 715 defined(CONFIG_ARCH_SH7367) || \ 716 defined(CONFIG_ARCH_SH7377) || \ 717 defined(CONFIG_ARCH_SH7372) || \ 718 defined(CONFIG_SH73A0) || \ 719 defined(CONFIG_R8A7740) 720 #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1) 721 #elif defined(CONFIG_CPU_SH7723) ||\ 722 defined(CONFIG_CPU_SH7724) 723 static inline int scbrr_calc(struct uart_port port, int bps, int clk) 724 { 725 if (port.type == PORT_SCIF) 726 return (clk+16*bps)/(32*bps)-1; 727 else 728 return ((clk*2)+16*bps)/(16*bps)-1; 729 } 730 #define SCBRR_VALUE(bps, clk) scbrr_calc(sh_sci, bps, clk) 731 #elif defined(__H8300H__) || defined(__H8300S__) 732 #define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1) 733 #elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) 734 #define SCBRR DL 735 #define SCBRR_VALUE(bps, clk) (clk / bps / 16) 736 #else /* Generic SH */ 737 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1) 738 #endif 739