1 /* 2 * Copy and modify from linux/drivers/serial/sh-sci.h 3 */ 4 5 #include <dm/platform_data/serial_sh.h> 6 7 struct 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_RCAR_GEN2) || defined(CONFIG_RCAR_GEN3) || \ 228 defined(CONFIG_R7S72100) 229 # if defined(CONFIG_SCIF_A) 230 # define SCIF_ORER 0x0200 231 # else 232 # define SCIF_ORER 0x0001 233 # endif 234 # define SCSCR_INIT(port) (port->clk_mode == EXT_CLK ? 0x32 : 0x30) 235 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0, */ 236 #else 237 # error CPU subtype not defined 238 #endif 239 240 /* SCSCR */ 241 #define SCI_CTRL_FLAGS_TIE 0x80 /* all */ 242 #define SCI_CTRL_FLAGS_RIE 0x40 /* all */ 243 #define SCI_CTRL_FLAGS_TE 0x20 /* all */ 244 #define SCI_CTRL_FLAGS_RE 0x10 /* all */ 245 #if defined(CONFIG_CPU_SH7750) || \ 246 defined(CONFIG_CPU_SH7091) || \ 247 defined(CONFIG_CPU_SH7750R) || \ 248 defined(CONFIG_CPU_SH7722) || \ 249 defined(CONFIG_CPU_SH7734) || \ 250 defined(CONFIG_CPU_SH7750S) || \ 251 defined(CONFIG_CPU_SH7751) || \ 252 defined(CONFIG_CPU_SH7751R) || \ 253 defined(CONFIG_CPU_SH7763) || \ 254 defined(CONFIG_CPU_SH7780) || \ 255 defined(CONFIG_CPU_SH7785) || \ 256 defined(CONFIG_CPU_SH7786) || \ 257 defined(CONFIG_CPU_SHX3) 258 #define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */ 259 #elif defined(CONFIG_CPU_SH7724) 260 #define SCI_CTRL_FLAGS_REIE ((port)->type == PORT_SCIFA ? 0 : 8) 261 #else 262 #define SCI_CTRL_FLAGS_REIE 0 263 #endif 264 /* SCI_CTRL_FLAGS_MPIE 0x08 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 265 /* SCI_CTRL_FLAGS_TEIE 0x04 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 266 /* SCI_CTRL_FLAGS_CKE1 0x02 * all */ 267 /* SCI_CTRL_FLAGS_CKE0 0x01 * 7707 SCI/SCIF, 7708 SCI, 7709 SCI/SCIF, 7750 SCI */ 268 269 /* SCxSR SCI */ 270 #define SCI_TDRE 0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 271 #define SCI_RDRF 0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 272 #define SCI_ORER 0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 273 #define SCI_FER 0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 274 #define SCI_PER 0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 275 #define SCI_TEND 0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 276 /* SCI_MPB 0x02 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 277 /* SCI_MPBT 0x01 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */ 278 279 #define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER) 280 281 /* SCxSR SCIF */ 282 #define SCIF_ER 0x0080 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 283 #define SCIF_TEND 0x0040 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 284 #define SCIF_TDFE 0x0020 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 285 #define SCIF_BRK 0x0010 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 286 #define SCIF_FER 0x0008 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 287 #define SCIF_PER 0x0004 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 288 #define SCIF_RDF 0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 289 #define SCIF_DR 0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ 290 291 #if defined(CONFIG_CPU_SH7705) || \ 292 defined(CONFIG_CPU_SH7720) || \ 293 defined(CONFIG_CPU_SH7721) || \ 294 defined(CONFIG_ARCH_SH7367) || \ 295 defined(CONFIG_ARCH_SH7377) || \ 296 defined(CONFIG_ARCH_SH7372) || \ 297 defined(CONFIG_SH73A0) || \ 298 defined(CONFIG_R8A7740) 299 # define SCIF_ORER 0x0200 300 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER) 301 # define SCIF_RFDC_MASK 0x007f 302 # define SCIF_TXROOM_MAX 64 303 #elif defined(CONFIG_CPU_SH7763) 304 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) 305 # define SCIF_RFDC_MASK 0x007f 306 # define SCIF_TXROOM_MAX 64 307 /* SH7763 SCIF2 support */ 308 # define SCIF2_RFDC_MASK 0x001f 309 # define SCIF2_TXROOM_MAX 16 310 #elif defined(CONFIG_RCAR_GEN2) 311 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) 312 # if defined(CONFIG_SCIF_A) 313 # define SCIF_RFDC_MASK 0x007f 314 # else 315 # define SCIF_RFDC_MASK 0x001f 316 # endif 317 #else 318 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) 319 # define SCIF_RFDC_MASK 0x001f 320 # define SCIF_TXROOM_MAX 16 321 #endif 322 323 #ifndef SCIF_ORER 324 #define SCIF_ORER 0x0000 325 #endif 326 327 #define SCxSR_TEND(port)\ 328 (((port)->type == PORT_SCI) ? SCI_TEND : SCIF_TEND) 329 #define SCxSR_ERRORS(port)\ 330 (((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS) 331 #define SCxSR_RDxF(port)\ 332 (((port)->type == PORT_SCI) ? SCI_RDRF : SCIF_RDF) 333 #define SCxSR_TDxE(port)\ 334 (((port)->type == PORT_SCI) ? SCI_TDRE : SCIF_TDFE) 335 #define SCxSR_FER(port)\ 336 (((port)->type == PORT_SCI) ? SCI_FER : SCIF_FER) 337 #define SCxSR_PER(port)\ 338 (((port)->type == PORT_SCI) ? SCI_PER : SCIF_PER) 339 #define SCxSR_BRK(port)\ 340 ((port)->type == PORT_SCI) ? 0x00 : SCIF_BRK) 341 #define SCxSR_ORER(port)\ 342 (((port)->type == PORT_SCI) ? SCI_ORER : SCIF_ORER) 343 344 #if defined(CONFIG_CPU_SH7705) || \ 345 defined(CONFIG_CPU_SH7720) || \ 346 defined(CONFIG_CPU_SH7721) || \ 347 defined(CONFIG_ARCH_SH7367) || \ 348 defined(CONFIG_ARCH_SH7377) || \ 349 defined(CONFIG_ARCH_SH7372) || \ 350 defined(CONFIG_SH73A0) || \ 351 defined(CONFIG_R8A7740) 352 # define SCxSR_RDxF_CLEAR(port) (sci_in(port, SCxSR) & 0xfffc) 353 # define SCxSR_ERROR_CLEAR(port) (sci_in(port, SCxSR) & 0xfd73) 354 # define SCxSR_TDxE_CLEAR(port) (sci_in(port, SCxSR) & 0xffdf) 355 # define SCxSR_BREAK_CLEAR(port) (sci_in(port, SCxSR) & 0xffe3) 356 #else 357 # define SCxSR_RDxF_CLEAR(port) (((port)->type == PORT_SCI) ? 0xbc : 0x00fc) 358 # define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073) 359 # define SCxSR_TDxE_CLEAR(port) (((port)->type == PORT_SCI) ? 0x78 : 0x00df) 360 # define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3) 361 #endif 362 363 /* SCFCR */ 364 #define SCFCR_RFRST 0x0002 365 #define SCFCR_TFRST 0x0004 366 #define SCFCR_TCRST 0x4000 367 #define SCFCR_MCE 0x0008 368 369 #define SCI_MAJOR 204 370 #define SCI_MINOR_START 8 371 372 /* Generic serial flags */ 373 #define SCI_RX_THROTTLE 0x0000001 374 375 #define SCI_MAGIC 0xbabeface 376 377 /* 378 * Events are used to schedule things to happen at timer-interrupt 379 * time, instead of at rs interrupt time. 380 */ 381 #define SCI_EVENT_WRITE_WAKEUP 0 382 383 #define SCI_IN(size, offset)\ 384 if ((size) == 8) {\ 385 return readb(port->membase + (offset));\ 386 } else {\ 387 return readw(port->membase + (offset));\ 388 } 389 #define SCI_OUT(size, offset, value)\ 390 if ((size) == 8) {\ 391 writeb(value, port->membase + (offset));\ 392 } else if ((size) == 16) {\ 393 writew(value, port->membase + (offset));\ 394 } 395 396 #define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\ 397 static inline unsigned int sci_##name##_in(struct uart_port *port) {\ 398 if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {\ 399 SCI_IN(scif_size, scif_offset)\ 400 } else { /* PORT_SCI or PORT_SCIFA */\ 401 SCI_IN(sci_size, sci_offset);\ 402 }\ 403 }\ 404 static inline void sci_##name##_out(struct uart_port *port,\ 405 unsigned int value) {\ 406 if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {\ 407 SCI_OUT(scif_size, scif_offset, value)\ 408 } else { /* PORT_SCI or PORT_SCIFA */\ 409 SCI_OUT(sci_size, sci_offset, value);\ 410 }\ 411 } 412 413 #ifdef CONFIG_H8300 414 /* h8300 don't have SCIF */ 415 #define CPU_SCIF_FNS(name) \ 416 static inline unsigned int sci_##name##_in(struct uart_port *port) {\ 417 return 0;\ 418 }\ 419 static inline void sci_##name##_out(struct uart_port *port,\ 420 unsigned int value) {\ 421 } 422 #else 423 #define CPU_SCIF_FNS(name, scif_offset, scif_size) \ 424 static inline unsigned int sci_##name##_in(struct uart_port *port) {\ 425 SCI_IN(scif_size, scif_offset);\ 426 }\ 427 static inline void sci_##name##_out(struct uart_port *port,\ 428 unsigned int value) {\ 429 SCI_OUT(scif_size, scif_offset, value);\ 430 } 431 #endif 432 433 #define CPU_SCI_FNS(name, sci_offset, sci_size)\ 434 static inline unsigned int sci_##name##_in(struct uart_port *port) {\ 435 SCI_IN(sci_size, sci_offset);\ 436 }\ 437 static inline void sci_##name##_out(struct uart_port *port,\ 438 unsigned int value) {\ 439 SCI_OUT(sci_size, sci_offset, value);\ 440 } 441 442 #if defined(CONFIG_CPU_SH3) || \ 443 defined(CONFIG_ARCH_SH7367) || \ 444 defined(CONFIG_ARCH_SH7377) || \ 445 defined(CONFIG_ARCH_SH7372) || \ 446 defined(CONFIG_SH73A0) || \ 447 defined(CONFIG_R8A7740) 448 #if defined(CONFIG_CPU_SH7710) || defined(CONFIG_CPU_SH7712) 449 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 450 sh4_sci_offset, sh4_sci_size, \ 451 sh3_scif_offset, sh3_scif_size, \ 452 sh4_scif_offset, sh4_scif_size, \ 453 h8_sci_offset, h8_sci_size) \ 454 CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size,\ 455 sh4_scif_offset, sh4_scif_size) 456 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\ 457 sh4_scif_offset, sh4_scif_size) \ 458 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) 459 #elif defined(CONFIG_CPU_SH7705) || \ 460 defined(CONFIG_CPU_SH7720) || \ 461 defined(CONFIG_CPU_SH7721) || \ 462 defined(CONFIG_ARCH_SH7367) || \ 463 defined(CONFIG_ARCH_SH7377) || \ 464 defined(CONFIG_SH73A0) 465 #define SCIF_FNS(name, scif_offset, scif_size) \ 466 CPU_SCIF_FNS(name, scif_offset, scif_size) 467 #elif defined(CONFIG_ARCH_SH7372) || \ 468 defined(CONFIG_R8A7740) 469 #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ 470 sh4_scifb_offset, sh4_scifb_size) \ 471 CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ 472 sh4_scifb_offset, sh4_scifb_size) 473 #define SCIF_FNS(name, scif_offset, scif_size) \ 474 CPU_SCIF_FNS(name, scif_offset, scif_size) 475 #else 476 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 477 sh4_sci_offset, sh4_sci_size, \ 478 sh3_scif_offset, sh3_scif_size,\ 479 sh4_scif_offset, sh4_scif_size, \ 480 h8_sci_offset, h8_sci_size) \ 481 CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 482 sh3_scif_offset, sh3_scif_size) 483 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\ 484 sh4_scif_offset, sh4_scif_size) \ 485 CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size) 486 #endif 487 #elif defined(__H8300H__) || defined(__H8300S__) 488 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 489 sh4_sci_offset, sh4_sci_size, \ 490 sh3_scif_offset, sh3_scif_size,\ 491 sh4_scif_offset, sh4_scif_size, \ 492 h8_sci_offset, h8_sci_size) \ 493 CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size) 494 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size,\ 495 sh4_scif_offset, sh4_scif_size) \ 496 CPU_SCIF_FNS(name) 497 #elif defined(CONFIG_CPU_SH7723) || defined(CONFIG_CPU_SH7724) 498 #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ 499 sh4_scif_offset, sh4_scif_size) \ 500 CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ 501 sh4_scif_offset, sh4_scif_size) 502 #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \ 503 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) 504 #else 505 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size,\ 506 sh4_sci_offset, sh4_sci_size, \ 507 sh3_scif_offset, sh3_scif_size,\ 508 sh4_scif_offset, sh4_scif_size, \ 509 h8_sci_offset, h8_sci_size) \ 510 CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size,\ 511 sh4_scif_offset, sh4_scif_size) 512 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, \ 513 sh4_scif_offset, sh4_scif_size) \ 514 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) 515 #endif 516 517 #if defined(CONFIG_CPU_SH7705) || \ 518 defined(CONFIG_CPU_SH7720) || \ 519 defined(CONFIG_CPU_SH7721) || \ 520 defined(CONFIG_ARCH_SH7367) || \ 521 defined(CONFIG_ARCH_SH7377) || \ 522 defined(CONFIG_SH73A0) 523 524 SCIF_FNS(SCSMR, 0x00, 16) 525 SCIF_FNS(SCBRR, 0x04, 8) 526 SCIF_FNS(SCSCR, 0x08, 16) 527 SCIF_FNS(SCTDSR, 0x0c, 8) 528 SCIF_FNS(SCFER, 0x10, 16) 529 SCIF_FNS(SCxSR, 0x14, 16) 530 SCIF_FNS(SCFCR, 0x18, 16) 531 SCIF_FNS(SCFDR, 0x1c, 16) 532 SCIF_FNS(SCxTDR, 0x20, 8) 533 SCIF_FNS(SCxRDR, 0x24, 8) 534 SCIF_FNS(SCLSR, 0x00, 0) 535 SCIF_FNS(DL, 0x00, 0) /* dummy */ 536 #elif defined(CONFIG_ARCH_SH7372) || \ 537 defined(CONFIG_R8A7740) 538 SCIF_FNS(SCSMR, 0x00, 16) 539 SCIF_FNS(SCBRR, 0x04, 8) 540 SCIF_FNS(SCSCR, 0x08, 16) 541 SCIF_FNS(SCTDSR, 0x0c, 16) 542 SCIF_FNS(SCFER, 0x10, 16) 543 SCIF_FNS(SCxSR, 0x14, 16) 544 SCIF_FNS(SCFCR, 0x18, 16) 545 SCIF_FNS(SCFDR, 0x1c, 16) 546 SCIF_FNS(SCTFDR, 0x38, 16) 547 SCIF_FNS(SCRFDR, 0x3c, 16) 548 SCIx_FNS(SCxTDR, 0x20, 8, 0x40, 8) 549 SCIx_FNS(SCxRDR, 0x24, 8, 0x60, 8) 550 SCIF_FNS(SCLSR, 0x00, 0) 551 SCIF_FNS(DL, 0x00, 0) /* dummy */ 552 #elif defined(CONFIG_CPU_SH7723) ||\ 553 defined(CONFIG_CPU_SH7724) 554 SCIx_FNS(SCSMR, 0x00, 16, 0x00, 16) 555 SCIx_FNS(SCBRR, 0x04, 8, 0x04, 8) 556 SCIx_FNS(SCSCR, 0x08, 16, 0x08, 16) 557 SCIx_FNS(SCxTDR, 0x20, 8, 0x0c, 8) 558 SCIx_FNS(SCxSR, 0x14, 16, 0x10, 16) 559 SCIx_FNS(SCxRDR, 0x24, 8, 0x14, 8) 560 SCIx_FNS(SCSPTR, 0, 0, 0, 0) 561 SCIF_FNS(SCTDSR, 0x0c, 8) 562 SCIF_FNS(SCFER, 0x10, 16) 563 SCIF_FNS(SCFCR, 0x18, 16) 564 SCIF_FNS(SCFDR, 0x1c, 16) 565 SCIF_FNS(SCLSR, 0x24, 16) 566 SCIF_FNS(DL, 0x00, 0) /* dummy */ 567 #elif defined(CONFIG_RCAR_GEN2) 568 /* SCIFA and SCIF register offsets and size */ 569 SCIx_FNS(SCSMR, 0, 0, 0x00, 16, 0, 0, 0x00, 16, 0, 0) 570 SCIx_FNS(SCBRR, 0, 0, 0x04, 8, 0, 0, 0x04, 8, 0, 0) 571 SCIx_FNS(SCSCR, 0, 0, 0x08, 16, 0, 0, 0x08, 16, 0, 0) 572 SCIx_FNS(SCxTDR, 0, 0, 0x20, 8, 0, 0, 0x0C, 8, 0, 0) 573 SCIx_FNS(SCxSR, 0, 0, 0x14, 16, 0, 0, 0x10, 16, 0, 0) 574 SCIx_FNS(SCxRDR, 0, 0, 0x24, 8, 0, 0, 0x14, 8, 0, 0) 575 SCIF_FNS(SCFCR, 0, 0, 0x18, 16) 576 SCIF_FNS(SCFDR, 0, 0, 0x1C, 16) 577 SCIF_FNS(SCSPTR, 0, 0, 0x20, 16) 578 SCIF_FNS(DL, 0, 0, 0x30, 16) 579 SCIF_FNS(CKS, 0, 0, 0x34, 16) 580 #if defined(CONFIG_SCIF_A) 581 SCIF_FNS(SCLSR, 0, 0, 0x14, 16) 582 #else 583 SCIF_FNS(SCLSR, 0, 0, 0x24, 16) 584 #endif 585 #else 586 /* reg SCI/SH3 SCI/SH4 SCIF/SH3 SCIF/SH4 SCI/H8*/ 587 /* name off sz off sz off sz off sz off sz*/ 588 SCIx_FNS(SCSMR, 0x00, 8, 0x00, 8, 0x00, 8, 0x00, 16, 0x00, 8) 589 SCIx_FNS(SCBRR, 0x02, 8, 0x04, 8, 0x02, 8, 0x04, 8, 0x01, 8) 590 SCIx_FNS(SCSCR, 0x04, 8, 0x08, 8, 0x04, 8, 0x08, 16, 0x02, 8) 591 SCIx_FNS(SCxTDR, 0x06, 8, 0x0c, 8, 0x06, 8, 0x0C, 8, 0x03, 8) 592 SCIx_FNS(SCxSR, 0x08, 8, 0x10, 8, 0x08, 16, 0x10, 16, 0x04, 8) 593 SCIx_FNS(SCxRDR, 0x0a, 8, 0x14, 8, 0x0A, 8, 0x14, 8, 0x05, 8) 594 SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16) 595 #if defined(CONFIG_CPU_SH7760) || \ 596 defined(CONFIG_CPU_SH7780) || \ 597 defined(CONFIG_CPU_SH7785) || \ 598 defined(CONFIG_CPU_SH7786) 599 SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) 600 SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16) 601 SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16) 602 SCIF_FNS(SCSPTR, 0, 0, 0x24, 16) 603 SCIF_FNS(SCLSR, 0, 0, 0x28, 16) 604 #elif defined(CONFIG_CPU_SH7763) 605 SCIF_FNS(SCFDR, 0, 0, 0x1C, 16) 606 SCIF_FNS(SCSPTR2, 0, 0, 0x20, 16) 607 SCIF_FNS(SCLSR2, 0, 0, 0x24, 16) 608 SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16) 609 SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16) 610 SCIF_FNS(SCSPTR, 0, 0, 0x24, 16) 611 SCIF_FNS(SCLSR, 0, 0, 0x28, 16) 612 #else 613 614 SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) 615 #if defined(CONFIG_CPU_SH7722) 616 SCIF_FNS(SCSPTR, 0, 0, 0, 0) 617 #else 618 SCIF_FNS(SCSPTR, 0, 0, 0x20, 16) 619 #endif 620 SCIF_FNS(SCLSR, 0, 0, 0x24, 16) 621 #endif 622 SCIF_FNS(DL, 0, 0, 0x0, 0) /* dummy */ 623 #endif 624 #define sci_in(port, reg) sci_##reg##_in(port) 625 #define sci_out(port, reg, value) sci_##reg##_out(port, value) 626 627 /* H8/300 series SCI pins assignment */ 628 #if defined(__H8300H__) || defined(__H8300S__) 629 static const struct __attribute__((packed)) { 630 int port; /* GPIO port no */ 631 unsigned short rx, tx; /* GPIO bit no */ 632 } h8300_sci_pins[] = { 633 #if defined(CONFIG_H83007) || defined(CONFIG_H83068) 634 { /* SCI0 */ 635 .port = H8300_GPIO_P9, 636 .rx = H8300_GPIO_B2, 637 .tx = H8300_GPIO_B0, 638 }, 639 { /* SCI1 */ 640 .port = H8300_GPIO_P9, 641 .rx = H8300_GPIO_B3, 642 .tx = H8300_GPIO_B1, 643 }, 644 { /* SCI2 */ 645 .port = H8300_GPIO_PB, 646 .rx = H8300_GPIO_B7, 647 .tx = H8300_GPIO_B6, 648 } 649 #elif defined(CONFIG_H8S2678) 650 { /* SCI0 */ 651 .port = H8300_GPIO_P3, 652 .rx = H8300_GPIO_B2, 653 .tx = H8300_GPIO_B0, 654 }, 655 { /* SCI1 */ 656 .port = H8300_GPIO_P3, 657 .rx = H8300_GPIO_B3, 658 .tx = H8300_GPIO_B1, 659 }, 660 { /* SCI2 */ 661 .port = H8300_GPIO_P5, 662 .rx = H8300_GPIO_B1, 663 .tx = H8300_GPIO_B0, 664 } 665 #endif 666 }; 667 #endif 668 669 #if defined(CONFIG_CPU_SH7706) || \ 670 defined(CONFIG_CPU_SH7707) || \ 671 defined(CONFIG_CPU_SH7708) || \ 672 defined(CONFIG_CPU_SH7709) 673 static inline int sci_rxd_in(struct uart_port *port) 674 { 675 if (port->mapbase == 0xfffffe80) 676 return __raw_readb(SCPDR)&0x01 ? 1 : 0; /* SCI */ 677 return 1; 678 } 679 #elif defined(CONFIG_CPU_SH7750) || \ 680 defined(CONFIG_CPU_SH7751) || \ 681 defined(CONFIG_CPU_SH7751R) || \ 682 defined(CONFIG_CPU_SH7750R) || \ 683 defined(CONFIG_CPU_SH7750S) || \ 684 defined(CONFIG_CPU_SH7091) 685 static inline int sci_rxd_in(struct uart_port *port) 686 { 687 if (port->mapbase == 0xffe00000) 688 return __raw_readb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */ 689 return 1; 690 } 691 #elif defined(__H8300H__) || defined(__H8300S__) 692 static inline int sci_rxd_in(struct uart_port *port) 693 { 694 int ch = (port->mapbase - SMR0) >> 3; 695 return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0; 696 } 697 #else /* default case for non-SCI processors */ 698 static inline int sci_rxd_in(struct uart_port *port) 699 { 700 return 1; 701 } 702 #endif 703 704 /* 705 * Values for the BitRate Register (SCBRR) 706 * 707 * The values are actually divisors for a frequency which can 708 * be internal to the SH3 (14.7456MHz) or derived from an external 709 * clock source. This driver assumes the internal clock is used; 710 * to support using an external clock source, config options or 711 * possibly command-line options would need to be added. 712 * 713 * Also, to support speeds below 2400 (why?) the lower 2 bits of 714 * the SCSMR register would also need to be set to non-zero values. 715 * 716 * -- Greg Banks 27Feb2000 717 * 718 * Answer: The SCBRR register is only eight bits, and the value in 719 * it gets larger with lower baud rates. At around 2400 (depending on 720 * the peripherial module clock) you run out of bits. However the 721 * lower two bits of SCSMR allow the module clock to be divided down, 722 * scaling the value which is needed in SCBRR. 723 * 724 * -- Stuart Menefy - 23 May 2000 725 * 726 * I meant, why would anyone bother with bitrates below 2400. 727 * 728 * -- Greg Banks - 7Jul2000 729 * 730 * You "speedist"! How will I use my 110bps ASR-33 teletype with paper 731 * tape reader as a console! 732 * 733 * -- Mitch Davis - 15 Jul 2000 734 */ 735 736 #if (defined(CONFIG_CPU_SH7780) || \ 737 defined(CONFIG_CPU_SH7785) || \ 738 defined(CONFIG_CPU_SH7786)) && \ 739 !defined(CONFIG_SH_SH2007) 740 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1) 741 #elif defined(CONFIG_CPU_SH7705) || \ 742 defined(CONFIG_CPU_SH7720) || \ 743 defined(CONFIG_CPU_SH7721) || \ 744 defined(CONFIG_ARCH_SH7367) || \ 745 defined(CONFIG_ARCH_SH7377) || \ 746 defined(CONFIG_ARCH_SH7372) || \ 747 defined(CONFIG_SH73A0) || \ 748 defined(CONFIG_R8A7740) 749 #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1) 750 #elif defined(CONFIG_CPU_SH7723) ||\ 751 defined(CONFIG_CPU_SH7724) 752 static inline int scbrr_calc(struct uart_port *port, int bps, int clk) 753 { 754 if (port->type == PORT_SCIF) 755 return (clk+16*bps)/(32*bps)-1; 756 else 757 return ((clk*2)+16*bps)/(16*bps)-1; 758 } 759 #define SCBRR_VALUE(bps, clk) scbrr_calc(port, bps, clk) 760 #elif defined(__H8300H__) || defined(__H8300S__) 761 #define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1) 762 #elif defined(CONFIG_RCAR_GEN2) 763 #define DL_VALUE(bps, clk) (clk / bps / 16) /* External Clock */ 764 #if defined(CONFIG_SCIF_A) 765 #define SCBRR_VALUE(bps, clk) (clk / bps / 16 - 1) /* Internal Clock */ 766 #else 767 #define SCBRR_VALUE(bps, clk) (clk / bps / 32 - 1) /* Internal Clock */ 768 #endif 769 #else /* Generic SH */ 770 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1) 771 #endif 772 773 #ifndef DL_VALUE 774 #define DL_VALUE(bps, clk) 0 775 #endif 776