1 /* $Id: sh-sci.h,v 1.4 2004/02/19 16:43:56 lethal Exp $
3 * linux/drivers/serial/sh-sci.h
5 * SuperH on-chip serial module support. (SCI with no FIFO / with FIFO)
6 * Copyright (C) 1999, 2000 Niibe Yutaka
7 * Copyright (C) 2000 Greg Banks
8 * Copyright (C) 2002, 2003 Paul Mundt
9 * Modified to support multiple serial ports. Stuart Menefy (May 2000).
10 * Modified to support SH7300(SH-Mobile) SCIF. Takashi Kusuda (Jun 2003).
11 * Modified to support H8/300 Series Yoshinori Sato (Feb 2004).
13 #include <linux/serial_core.h>
16 #if defined(__H8300H__) || defined(__H8300S__)
18 #if defined(CONFIG_H83007) || defined(CONFIG_H83068)
19 #include <asm/regs306x.h>
21 #if defined(CONFIG_H8S2678)
22 #include <asm/regs267x.h>
26 #if defined(CONFIG_CPU_SUBTYPE_SH7708)
27 # define SCSPTR 0xffffff7c /* 8 bit */
28 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
30 #elif defined(CONFIG_CPU_SUBTYPE_SH7707) || \
31 defined(CONFIG_CPU_SUBTYPE_SH7709) || \
32 defined(CONFIG_CPU_SUBTYPE_SH7706)
33 # define SCPCR 0xA4000116 /* 16 bit SCI and SCIF */
34 # define SCPDR 0xA4000136 /* 8 bit SCI and SCIF */
35 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
37 #elif defined(CONFIG_CPU_SUBTYPE_SH7705)
38 # define SCIF0 0xA4400000
39 # define SCIF2 0xA4410000
40 # define SCSMR_Ir 0xA44A0000
41 # define IRDA_SCIF SCIF0
42 # define SCPCR 0xA4000116
43 # define SCPDR 0xA4000136
45 /* Set the clock source,
46 * SCIF2 (0xA4410000) -> External clock, SCK pin used as clock input
47 * SCIF0 (0xA4400000) -> Internal clock, SCK pin as serial clock output
49 # define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0
51 #elif defined(CONFIG_SH_RTS7751R2D)
52 # define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
53 # define SCIF_ORER 0x0001 /* overrun error bit */
54 # define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
56 #elif defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751)
57 # define SCSPTR1 0xffe0001c /* 8 bit SCI */
58 # define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
59 # define SCIF_ORER 0x0001 /* overrun error bit */
60 # define SCSCR_INIT(port) (((port)->type == PORT_SCI) ? \
61 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
62 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )
64 #elif defined(CONFIG_CPU_SUBTYPE_SH7760)
65 # define SCSPTR0 0xfe600024 /* 16 bit SCIF */
66 # define SCSPTR1 0xfe610024 /* 16 bit SCIF */
67 # define SCSPTR2 0xfe620024 /* 16 bit SCIF */
68 # define SCIF_ORER 0x0001 /* overrun error bit */
69 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
71 #elif defined(CONFIG_CPU_SUBTYPE_SH7300)
72 # define SCPCR 0xA4050116 /* 16 bit SCIF */
73 # define SCPDR 0xA4050136 /* 16 bit SCIF */
74 # define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
76 #elif defined(CONFIG_CPU_SUBTYPE_SH7710)
77 # define SCSPTR0 0xA4400000 /* 16 bit SCIF */
78 # define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
80 #elif defined(CONFIG_CPU_SUBTYPE_SH73180)
81 # define SCPDR 0xA4050138 /* 16 bit SCIF */
82 # define SCSPTR2 SCPDR
83 # define SCIF_ORER 0x0001 /* overrun error bit */
84 # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1 */
86 #elif defined(CONFIG_CPU_SUBTYPE_SH7343)
87 # define SCSPTR0 0xffe00010 /* 16 bit SCIF */
88 # define SCSPTR1 0xffe10010 /* 16 bit SCIF */
89 # define SCSPTR2 0xffe20010 /* 16 bit SCIF */
90 # define SCSPTR3 0xffe30010 /* 16 bit SCIF */
91 # define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */
93 #elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
94 # define SCSPTR2 0xffe80020 /* 16 bit SCIF */
95 # define SCIF_ORER 0x0001 /* overrun error bit */
96 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
98 #elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
99 # define SCSPTR1 0xffe00020 /* 16 bit SCIF */
100 # define SCSPTR2 0xffe80020 /* 16 bit SCIF */
101 # define SCIF_ORER 0x0001 /* overrun error bit */
102 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
104 #elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
105 # include <asm/hardware.h>
106 # define SCIF_BASE_ADDR 0x01030000
107 # define SCIF_ADDR_SH5 PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
108 # define SCIF_PTR2_OFFS 0x0000020
109 # define SCIF_LSR2_OFFS 0x0000024
110 # define SCSPTR2 ((port->mapbase)+SCIF_PTR2_OFFS) /* 16 bit SCIF */
111 # define SCLSR2 ((port->mapbase)+SCIF_LSR2_OFFS) /* 16 bit SCIF */
112 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,
115 #elif defined(CONFIG_H83007) || defined(CONFIG_H83068)
116 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
118 # define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
119 #elif defined(CONFIG_H8S2678)
120 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
122 # define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
123 #elif defined(CONFIG_CPU_SUBTYPE_SH7770)
124 # define SCSPTR0 0xff923020 /* 16 bit SCIF */
125 # define SCSPTR1 0xff924020 /* 16 bit SCIF */
126 # define SCSPTR2 0xff925020 /* 16 bit SCIF */
127 # define SCIF_ORER 0x0001 /* overrun error bit */
128 # define SCSCR_INIT(port) 0x3c /* TIE=0,RIE=0,TE=1,RE=1,REIE=1,cke=2 */
130 #elif defined(CONFIG_CPU_SUBTYPE_SH7780)
131 # define SCSPTR0 0xffe00024 /* 16 bit SCIF */
132 # define SCSPTR1 0xffe10024 /* 16 bit SCIF */
133 # define SCIF_ORER 0x0001 /* Overrun error bit */
134 # define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
136 #elif defined(CONFIG_CPU_SUBTYPE_SH7206)
137 # define SCSPTR0 0xfffe8020 /* 16 bit SCIF */
138 # define SCSPTR1 0xfffe8820 /* 16 bit SCIF */
139 # define SCSPTR2 0xfffe9020 /* 16 bit SCIF */
140 # define SCSPTR3 0xfffe9820 /* 16 bit SCIF */
141 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
143 #elif defined(CONFIG_CPU_SUBTYPE_SH7619)
144 # define SCSPTR0 0xf8400020 /* 16 bit SCIF */
145 # define SCSPTR1 0xf8410020 /* 16 bit SCIF */
146 # define SCSPTR2 0xf8420020 /* 16 bit SCIF */
147 # define SCIF_ORER 0x0001 /* overrun error bit */
148 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
151 # error CPU subtype not defined
155 #define SCI_CTRL_FLAGS_TIE 0x80 /* all */
156 #define SCI_CTRL_FLAGS_RIE 0x40 /* all */
157 #define SCI_CTRL_FLAGS_TE 0x20 /* all */
158 #define SCI_CTRL_FLAGS_RE 0x10 /* all */
159 #if defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751) || defined(CONFIG_CPU_SUBTYPE_SH7780)
160 #define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
162 #define SCI_CTRL_FLAGS_REIE 0
164 /* SCI_CTRL_FLAGS_MPIE 0x08 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
165 /* SCI_CTRL_FLAGS_TEIE 0x04 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
166 /* SCI_CTRL_FLAGS_CKE1 0x02 * all */
167 /* SCI_CTRL_FLAGS_CKE0 0x01 * 7707 SCI/SCIF, 7708 SCI, 7709 SCI/SCIF, 7750 SCI */
170 #define SCI_TDRE 0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
171 #define SCI_RDRF 0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
172 #define SCI_ORER 0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
173 #define SCI_FER 0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
174 #define SCI_PER 0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
175 #define SCI_TEND 0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
176 /* SCI_MPB 0x02 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
177 /* SCI_MPBT 0x01 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
179 #define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER)
182 #define SCIF_ER 0x0080 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
183 #define SCIF_TEND 0x0040 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
184 #define SCIF_TDFE 0x0020 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
185 #define SCIF_BRK 0x0010 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
186 #define SCIF_FER 0x0008 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
187 #define SCIF_PER 0x0004 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
188 #define SCIF_RDF 0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
189 #define SCIF_DR 0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
191 #if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
192 #define SCIF_ORER 0x0200
193 #define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER)
194 #define SCIF_RFDC_MASK 0x007f
195 #define SCIF_TXROOM_MAX 64
197 #define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
198 #define SCIF_RFDC_MASK 0x001f
199 #define SCIF_TXROOM_MAX 16
202 #if defined(SCI_ONLY)
203 # define SCxSR_TEND(port) SCI_TEND
204 # define SCxSR_ERRORS(port) SCI_ERRORS
205 # define SCxSR_RDxF(port) SCI_RDRF
206 # define SCxSR_TDxE(port) SCI_TDRE
207 # define SCxSR_ORER(port) SCI_ORER
208 # define SCxSR_FER(port) SCI_FER
209 # define SCxSR_PER(port) SCI_PER
210 # define SCxSR_BRK(port) 0x00
211 # define SCxSR_RDxF_CLEAR(port) 0xbc
212 # define SCxSR_ERROR_CLEAR(port) 0xc4
213 # define SCxSR_TDxE_CLEAR(port) 0x78
214 # define SCxSR_BREAK_CLEAR(port) 0xc4
215 #elif defined(SCIF_ONLY)
216 # define SCxSR_TEND(port) SCIF_TEND
217 # define SCxSR_ERRORS(port) SCIF_ERRORS
218 # define SCxSR_RDxF(port) SCIF_RDF
219 # define SCxSR_TDxE(port) SCIF_TDFE
220 #if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
221 # define SCxSR_ORER(port) SCIF_ORER
223 # define SCxSR_ORER(port) 0x0000
225 # define SCxSR_FER(port) SCIF_FER
226 # define SCxSR_PER(port) SCIF_PER
227 # define SCxSR_BRK(port) SCIF_BRK
228 #if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
229 # define SCxSR_RDxF_CLEAR(port) (sci_in(port,SCxSR)&0xfffc)
230 # define SCxSR_ERROR_CLEAR(port) (sci_in(port,SCxSR)&0xfd73)
231 # define SCxSR_TDxE_CLEAR(port) (sci_in(port,SCxSR)&0xffdf)
232 # define SCxSR_BREAK_CLEAR(port) (sci_in(port,SCxSR)&0xffe3)
234 /* SH7705 can also use this, clearing is same between 7705 and 7709 and 7300 */
235 # define SCxSR_RDxF_CLEAR(port) 0x00fc
236 # define SCxSR_ERROR_CLEAR(port) 0x0073
237 # define SCxSR_TDxE_CLEAR(port) 0x00df
238 # define SCxSR_BREAK_CLEAR(port) 0x00e3
241 # define SCxSR_TEND(port) (((port)->type == PORT_SCI) ? SCI_TEND : SCIF_TEND)
242 # define SCxSR_ERRORS(port) (((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)
243 # define SCxSR_RDxF(port) (((port)->type == PORT_SCI) ? SCI_RDRF : SCIF_RDF)
244 # define SCxSR_TDxE(port) (((port)->type == PORT_SCI) ? SCI_TDRE : SCIF_TDFE)
245 # define SCxSR_ORER(port) (((port)->type == PORT_SCI) ? SCI_ORER : 0x0000)
246 # define SCxSR_FER(port) (((port)->type == PORT_SCI) ? SCI_FER : SCIF_FER)
247 # define SCxSR_PER(port) (((port)->type == PORT_SCI) ? SCI_PER : SCIF_PER)
248 # define SCxSR_BRK(port) (((port)->type == PORT_SCI) ? 0x00 : SCIF_BRK)
249 # define SCxSR_RDxF_CLEAR(port) (((port)->type == PORT_SCI) ? 0xbc : 0x00fc)
250 # define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073)
251 # define SCxSR_TDxE_CLEAR(port) (((port)->type == PORT_SCI) ? 0x78 : 0x00df)
252 # define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3)
256 #define SCFCR_RFRST 0x0002
257 #define SCFCR_TFRST 0x0004
258 #define SCFCR_TCRST 0x4000
259 #define SCFCR_MCE 0x0008
261 #define SCI_MAJOR 204
262 #define SCI_MINOR_START 8
264 /* Generic serial flags */
265 #define SCI_RX_THROTTLE 0x0000001
267 #define SCI_MAGIC 0xbabeface
270 * Events are used to schedule things to happen at timer-interrupt
271 * time, instead of at rs interrupt time.
273 #define SCI_EVENT_WRITE_WAKEUP 0
275 #define SCI_IN(size, offset) \
276 unsigned int addr = port->mapbase + (offset); \
278 return ctrl_inb(addr); \
280 return ctrl_inw(addr); \
282 #define SCI_OUT(size, offset, value) \
283 unsigned int addr = port->mapbase + (offset); \
285 ctrl_outb(value, addr); \
287 ctrl_outw(value, addr); \
290 #define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
291 static inline unsigned int sci_##name##_in(struct uart_port *port) \
293 if (port->type == PORT_SCI) { \
294 SCI_IN(sci_size, sci_offset) \
296 SCI_IN(scif_size, scif_offset); \
299 static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
301 if (port->type == PORT_SCI) { \
302 SCI_OUT(sci_size, sci_offset, value) \
304 SCI_OUT(scif_size, scif_offset, value); \
308 #define CPU_SCIF_FNS(name, scif_offset, scif_size) \
309 static inline unsigned int sci_##name##_in(struct uart_port *port) \
311 SCI_IN(scif_size, scif_offset); \
313 static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
315 SCI_OUT(scif_size, scif_offset, value); \
318 #define CPU_SCI_FNS(name, sci_offset, sci_size) \
319 static inline unsigned int sci_##name##_in(struct uart_port* port) \
321 SCI_IN(sci_size, sci_offset); \
323 static inline void sci_##name##_out(struct uart_port* port, unsigned int value) \
325 SCI_OUT(sci_size, sci_offset, value); \
328 #ifdef CONFIG_CPU_SH3
329 #if defined(CONFIG_CPU_SUBTYPE_SH7300) || \
330 defined(CONFIG_CPU_SUBTYPE_SH7705) || \
331 defined(CONFIG_CPU_SUBTYPE_SH7710)
332 #define SCIF_FNS(name, scif_offset, scif_size) \
333 CPU_SCIF_FNS(name, scif_offset, scif_size)
335 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
336 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
337 h8_sci_offset, h8_sci_size) \
338 CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh3_scif_offset, sh3_scif_size)
339 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
340 CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size)
342 #elif defined(__H8300H__) || defined(__H8300S__)
343 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
344 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
345 h8_sci_offset, h8_sci_size) \
346 CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size)
347 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size)
349 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
350 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
351 h8_sci_offset, h8_sci_size) \
352 CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
353 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
354 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
357 #if defined(CONFIG_CPU_SUBTYPE_SH7300) || \
358 defined(CONFIG_CPU_SUBTYPE_SH7705) || \
359 defined(CONFIG_CPU_SUBTYPE_SH7710)
360 SCIF_FNS(SCSMR, 0x00, 16)
361 SCIF_FNS(SCBRR, 0x04, 8)
362 SCIF_FNS(SCSCR, 0x08, 16)
363 SCIF_FNS(SCTDSR, 0x0c, 8)
364 SCIF_FNS(SCFER, 0x10, 16)
365 SCIF_FNS(SCxSR, 0x14, 16)
366 SCIF_FNS(SCFCR, 0x18, 16)
367 SCIF_FNS(SCFDR, 0x1c, 16)
368 SCIF_FNS(SCxTDR, 0x20, 8)
369 SCIF_FNS(SCxRDR, 0x24, 8)
370 SCIF_FNS(SCLSR, 0x24, 16)
372 /* reg SCI/SH3 SCI/SH4 SCIF/SH3 SCIF/SH4 SCI/H8*/
373 /* name off sz off sz off sz off sz off sz*/
374 SCIx_FNS(SCSMR, 0x00, 8, 0x00, 8, 0x00, 8, 0x00, 16, 0x00, 8)
375 SCIx_FNS(SCBRR, 0x02, 8, 0x04, 8, 0x02, 8, 0x04, 8, 0x01, 8)
376 SCIx_FNS(SCSCR, 0x04, 8, 0x08, 8, 0x04, 8, 0x08, 16, 0x02, 8)
377 SCIx_FNS(SCxTDR, 0x06, 8, 0x0c, 8, 0x06, 8, 0x0C, 8, 0x03, 8)
378 SCIx_FNS(SCxSR, 0x08, 8, 0x10, 8, 0x08, 16, 0x10, 16, 0x04, 8)
379 SCIx_FNS(SCxRDR, 0x0a, 8, 0x14, 8, 0x0A, 8, 0x14, 8, 0x05, 8)
380 SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16)
381 #if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780)
382 SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16)
383 SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16)
384 SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16)
385 SCIF_FNS(SCSPTR, 0, 0, 0x24, 16)
386 SCIF_FNS(SCLSR, 0, 0, 0x28, 16)
388 SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16)
389 SCIF_FNS(SCSPTR, 0, 0, 0x20, 16)
390 SCIF_FNS(SCLSR, 0, 0, 0x24, 16)
393 #define sci_in(port, reg) sci_##reg##_in(port)
394 #define sci_out(port, reg, value) sci_##reg##_out(port, value)
396 /* H8/300 series SCI pins assignment */
397 #if defined(__H8300H__) || defined(__H8300S__)
398 static const struct __attribute__((packed)) {
399 int port; /* GPIO port no */
400 unsigned short rx,tx; /* GPIO bit no */
401 } h8300_sci_pins[] = {
402 #if defined(CONFIG_H83007) || defined(CONFIG_H83068)
404 .port = H8300_GPIO_P9,
409 .port = H8300_GPIO_P9,
414 .port = H8300_GPIO_PB,
418 #elif defined(CONFIG_H8S2678)
420 .port = H8300_GPIO_P3,
425 .port = H8300_GPIO_P3,
430 .port = H8300_GPIO_P5,
438 #if defined(CONFIG_CPU_SUBTYPE_SH7708)
439 static inline int sci_rxd_in(struct uart_port *port)
441 if (port->mapbase == 0xfffffe80)
442 return ctrl_inb(SCSPTR)&0x01 ? 1 : 0; /* SCI */
445 #elif defined(CONFIG_CPU_SUBTYPE_SH7707) || \
446 defined(CONFIG_CPU_SUBTYPE_SH7709) || \
447 defined(CONFIG_CPU_SUBTYPE_SH7706)
448 static inline int sci_rxd_in(struct uart_port *port)
450 if (port->mapbase == 0xfffffe80)
451 return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCI */
452 if (port->mapbase == 0xa4000150)
453 return ctrl_inb(SCPDR)&0x10 ? 1 : 0; /* SCIF */
454 if (port->mapbase == 0xa4000140)
455 return ctrl_inb(SCPDR)&0x04 ? 1 : 0; /* IRDA */
458 #elif defined(CONFIG_CPU_SUBTYPE_SH7705)
459 static inline int sci_rxd_in(struct uart_port *port)
461 if (port->mapbase == SCIF0)
462 return ctrl_inb(SCPDR)&0x04 ? 1 : 0; /* IRDA */
463 if (port->mapbase == SCIF2)
464 return ctrl_inb(SCPDR)&0x10 ? 1 : 0; /* SCIF */
467 #elif defined(CONFIG_CPU_SUBTYPE_SH7710)
468 static inline int sci_rxd_in(struct uart_port *port)
470 if (port->mapbase == SCSPTR0)
471 return ctrl_inw(SCSPTR0 + 0x10) & 0x01 ? 1 : 0;
474 #elif defined(CONFIG_CPU_SUBTYPE_SH7750) || \
475 defined(CONFIG_CPU_SUBTYPE_SH7751) || \
476 defined(CONFIG_CPU_SUBTYPE_SH4_202)
477 static inline int sci_rxd_in(struct uart_port *port)
480 if (port->mapbase == 0xffe00000)
481 return ctrl_inb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */
484 if (port->mapbase == 0xffe80000)
485 return ctrl_inw(SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */
489 #elif defined(CONFIG_CPU_SUBTYPE_SH7760)
490 static inline int sci_rxd_in(struct uart_port *port)
492 if (port->mapbase == 0xfe600000)
493 return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
494 if (port->mapbase == 0xfe610000)
495 return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
496 if (port->mapbase == 0xfe620000)
497 return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
499 #elif defined(CONFIG_CPU_SUBTYPE_SH7300)
500 static inline int sci_rxd_in(struct uart_port *port)
502 if (port->mapbase == 0xa4430000)
503 return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCIF0 */
506 #elif defined(CONFIG_CPU_SUBTYPE_SH73180)
507 static inline int sci_rxd_in(struct uart_port *port)
509 return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCIF0 */
511 #elif defined(CONFIG_CPU_SUBTYPE_SH7343)
512 static inline int sci_rxd_in(struct uart_port *port)
514 if (port->mapbase == 0xffe00000)
515 return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
516 if (port->mapbase == 0xffe10000)
517 return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
518 if (port->mapbase == 0xffe20000)
519 return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
520 if (port->mapbase == 0xffe30000)
521 return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */
524 #elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
525 static inline int sci_rxd_in(struct uart_port *port)
527 if (port->mapbase == 0xffe00000)
528 return ctrl_inw(SCSPTR1)&0x0001 ? 1 : 0; /* SCIF */
530 return ctrl_inw(SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */
533 #elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
534 static inline int sci_rxd_in(struct uart_port *port)
536 return sci_in(port, SCSPTR)&0x0001 ? 1 : 0; /* SCIF */
538 #elif defined(__H8300H__) || defined(__H8300S__)
539 static inline int sci_rxd_in(struct uart_port *port)
541 int ch = (port->mapbase - SMR0) >> 3;
542 return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0;
544 #elif defined(CONFIG_CPU_SUBTYPE_SH7770)
545 static inline int sci_rxd_in(struct uart_port *port)
547 if (port->mapbase == 0xff923000)
548 return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
549 if (port->mapbase == 0xff924000)
550 return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
551 if (port->mapbase == 0xff925000)
552 return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
554 #elif defined(CONFIG_CPU_SUBTYPE_SH7780)
555 static inline int sci_rxd_in(struct uart_port *port)
557 if (port->mapbase == 0xffe00000)
558 return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
559 if (port->mapbase == 0xffe10000)
560 return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
562 #elif defined(CONFIG_CPU_SUBTYPE_SH7206)
563 static inline int sci_rxd_in(struct uart_port *port)
565 if (port->mapbase == 0xfffe8000)
566 return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
567 if (port->mapbase == 0xfffe8800)
568 return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
569 if (port->mapbase == 0xfffe9000)
570 return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
571 if (port->mapbase == 0xfffe9800)
572 return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */
574 #elif defined(CONFIG_CPU_SUBTYPE_SH7619)
575 static inline int sci_rxd_in(struct uart_port *port)
577 if (port->mapbase == 0xf8400000)
578 return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
579 if (port->mapbase == 0xf8410000)
580 return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
581 if (port->mapbase == 0xf8420000)
582 return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
587 * Values for the BitRate Register (SCBRR)
589 * The values are actually divisors for a frequency which can
590 * be internal to the SH3 (14.7456MHz) or derived from an external
591 * clock source. This driver assumes the internal clock is used;
592 * to support using an external clock source, config options or
593 * possibly command-line options would need to be added.
595 * Also, to support speeds below 2400 (why?) the lower 2 bits of
596 * the SCSMR register would also need to be set to non-zero values.
598 * -- Greg Banks 27Feb2000
600 * Answer: The SCBRR register is only eight bits, and the value in
601 * it gets larger with lower baud rates. At around 2400 (depending on
602 * the peripherial module clock) you run out of bits. However the
603 * lower two bits of SCSMR allow the module clock to be divided down,
604 * scaling the value which is needed in SCBRR.
606 * -- Stuart Menefy - 23 May 2000
608 * I meant, why would anyone bother with bitrates below 2400.
610 * -- Greg Banks - 7Jul2000
612 * You "speedist"! How will I use my 110bps ASR-33 teletype with paper
613 * tape reader as a console!
615 * -- Mitch Davis - 15 Jul 2000
618 #if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7780)
619 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
620 #elif defined(CONFIG_CPU_SUBTYPE_SH7705)
621 #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
622 #elif defined(__H8300H__) || defined(__H8300S__)
623 #define SCBRR_VALUE(bps) (((CONFIG_CPU_CLOCK*1000/32)/bps)-1)
624 #elif defined(CONFIG_SUPERH64)
625 #define SCBRR_VALUE(bps) ((current_cpu_data.module_clock+16*bps)/(32*bps)-1)
626 #else /* Generic SH */
627 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)