1 #include <linux/serial_core.h>
3 #include <linux/gpio.h>
5 #if defined(CONFIG_H83007) || defined(CONFIG_H83068)
6 #include <asm/regs306x.h>
8 #if defined(CONFIG_H8S2678)
9 #include <asm/regs267x.h>
12 #if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
13 defined(CONFIG_CPU_SUBTYPE_SH7707) || \
14 defined(CONFIG_CPU_SUBTYPE_SH7708) || \
15 defined(CONFIG_CPU_SUBTYPE_SH7709)
16 # define SCPCR 0xA4000116 /* 16 bit SCI and SCIF */
17 # define SCPDR 0xA4000136 /* 8 bit SCI and SCIF */
18 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
19 #elif defined(CONFIG_CPU_SUBTYPE_SH7705)
20 # define SCIF0 0xA4400000
21 # define SCIF2 0xA4410000
22 # define SCSMR_Ir 0xA44A0000
23 # define IRDA_SCIF SCIF0
24 # define SCPCR 0xA4000116
25 # define SCPDR 0xA4000136
27 /* Set the clock source,
28 * SCIF2 (0xA4410000) -> External clock, SCK pin used as clock input
29 * SCIF0 (0xA4400000) -> Internal clock, SCK pin as serial clock output
31 # define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0
32 #elif defined(CONFIG_CPU_SUBTYPE_SH7720) || \
33 defined(CONFIG_CPU_SUBTYPE_SH7721) || \
34 defined(CONFIG_ARCH_SH7367) || \
35 defined(CONFIG_ARCH_SH7377) || \
36 defined(CONFIG_ARCH_SH7372)
37 # define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
38 # define PORT_PTCR 0xA405011EUL
39 # define PORT_PVCR 0xA4050122UL
40 # define SCIF_ORER 0x0200 /* overrun error bit */
41 #elif defined(CONFIG_SH_RTS7751R2D)
42 # define SCSPTR1 0xFFE0001C /* 8 bit SCIF */
43 # define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
44 # define SCIF_ORER 0x0001 /* overrun error bit */
45 # define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
46 #elif defined(CONFIG_CPU_SUBTYPE_SH7750) || \
47 defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
48 defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
49 defined(CONFIG_CPU_SUBTYPE_SH7091) || \
50 defined(CONFIG_CPU_SUBTYPE_SH7751) || \
51 defined(CONFIG_CPU_SUBTYPE_SH7751R)
52 # define SCSPTR1 0xffe0001c /* 8 bit SCI */
53 # define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
54 # define SCIF_ORER 0x0001 /* overrun error bit */
55 # define SCSCR_INIT(port) (((port)->type == PORT_SCI) ? \
56 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
57 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )
58 #elif defined(CONFIG_CPU_SUBTYPE_SH7760)
59 # define SCSPTR0 0xfe600024 /* 16 bit SCIF */
60 # define SCSPTR1 0xfe610024 /* 16 bit SCIF */
61 # define SCSPTR2 0xfe620024 /* 16 bit SCIF */
62 # define SCIF_ORER 0x0001 /* overrun error bit */
63 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
64 #elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
65 # define SCSPTR0 0xA4400000 /* 16 bit SCIF */
66 # define SCIF_ORER 0x0001 /* overrun error bit */
67 # define PACR 0xa4050100
68 # define PBCR 0xa4050102
69 # define SCSCR_INIT(port) 0x3B
70 #elif defined(CONFIG_CPU_SUBTYPE_SH7343)
71 # define SCSPTR0 0xffe00010 /* 16 bit SCIF */
72 # define SCSPTR1 0xffe10010 /* 16 bit SCIF */
73 # define SCSPTR2 0xffe20010 /* 16 bit SCIF */
74 # define SCSPTR3 0xffe30010 /* 16 bit SCIF */
75 # define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */
76 #elif defined(CONFIG_CPU_SUBTYPE_SH7722)
77 # define PADR 0xA4050120
78 # define PSDR 0xA405013e
79 # define PWDR 0xA4050166
80 # define PSCR 0xA405011E
81 # define SCIF_ORER 0x0001 /* overrun error bit */
82 # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
83 #elif defined(CONFIG_CPU_SUBTYPE_SH7366)
84 # define SCPDR0 0xA405013E /* 16 bit SCIF0 PSDR */
85 # define SCSPTR0 SCPDR0
86 # define SCIF_ORER 0x0001 /* overrun error bit */
87 # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
88 #elif defined(CONFIG_CPU_SUBTYPE_SH7723)
89 # define SCSPTR0 0xa4050160
90 # define SCSPTR1 0xa405013e
91 # define SCSPTR2 0xa4050160
92 # define SCSPTR3 0xa405013e
93 # define SCSPTR4 0xa4050128
94 # define SCSPTR5 0xa4050128
95 # define SCIF_ORER 0x0001 /* overrun error bit */
96 # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
97 #elif defined(CONFIG_CPU_SUBTYPE_SH7724)
98 # define SCIF_ORER 0x0001 /* overrun error bit */
99 # define SCSCR_INIT(port) ((port)->type == PORT_SCIFA ? \
100 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
101 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )
102 #elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
103 # define SCSPTR2 0xffe80020 /* 16 bit SCIF */
104 # define SCIF_ORER 0x0001 /* overrun error bit */
105 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
106 #elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
107 # define SCIF_BASE_ADDR 0x01030000
108 # define SCIF_ADDR_SH5 PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
109 # define SCIF_PTR2_OFFS 0x0000020
110 # define SCIF_LSR2_OFFS 0x0000024
111 # define SCSPTR2 ((port->mapbase)+SCIF_PTR2_OFFS) /* 16 bit SCIF */
112 # define SCLSR2 ((port->mapbase)+SCIF_LSR2_OFFS) /* 16 bit SCIF */
113 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0, TE=1,RE=1,REIE=1 */
114 #elif defined(CONFIG_H83007) || defined(CONFIG_H83068)
115 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
116 # define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
117 #elif defined(CONFIG_H8S2678)
118 # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
119 # define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
120 #elif defined(CONFIG_CPU_SUBTYPE_SH7757)
121 # define SCSPTR0 0xfe4b0020
122 # define SCSPTR1 0xfe4b0020
123 # define SCSPTR2 0xfe4b0020
124 # define SCIF_ORER 0x0001
125 # define SCSCR_INIT(port) 0x38
127 #elif defined(CONFIG_CPU_SUBTYPE_SH7763)
128 # define SCSPTR0 0xffe00024 /* 16 bit SCIF */
129 # define SCSPTR1 0xffe08024 /* 16 bit SCIF */
130 # define SCSPTR2 0xffe10020 /* 16 bit SCIF/IRDA */
131 # define SCIF_ORER 0x0001 /* overrun error bit */
132 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
133 #elif defined(CONFIG_CPU_SUBTYPE_SH7770)
134 # define SCSPTR0 0xff923020 /* 16 bit SCIF */
135 # define SCSPTR1 0xff924020 /* 16 bit SCIF */
136 # define SCSPTR2 0xff925020 /* 16 bit SCIF */
137 # define SCIF_ORER 0x0001 /* overrun error bit */
138 # define SCSCR_INIT(port) 0x3c /* TIE=0,RIE=0,TE=1,RE=1,REIE=1,cke=2 */
139 #elif defined(CONFIG_CPU_SUBTYPE_SH7780)
140 # define SCSPTR0 0xffe00024 /* 16 bit SCIF */
141 # define SCSPTR1 0xffe10024 /* 16 bit SCIF */
142 # define SCIF_ORER 0x0001 /* Overrun error bit */
143 # define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
144 #elif defined(CONFIG_CPU_SUBTYPE_SH7785) || \
145 defined(CONFIG_CPU_SUBTYPE_SH7786)
146 # define SCSPTR0 0xffea0024 /* 16 bit SCIF */
147 # define SCSPTR1 0xffeb0024 /* 16 bit SCIF */
148 # define SCSPTR2 0xffec0024 /* 16 bit SCIF */
149 # define SCSPTR3 0xffed0024 /* 16 bit SCIF */
150 # define SCSPTR4 0xffee0024 /* 16 bit SCIF */
151 # define SCSPTR5 0xffef0024 /* 16 bit SCIF */
152 # define SCIF_ORER 0x0001 /* Overrun error bit */
153 # define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
154 #elif defined(CONFIG_CPU_SUBTYPE_SH7201) || \
155 defined(CONFIG_CPU_SUBTYPE_SH7203) || \
156 defined(CONFIG_CPU_SUBTYPE_SH7206) || \
157 defined(CONFIG_CPU_SUBTYPE_SH7263)
158 # define SCSPTR0 0xfffe8020 /* 16 bit SCIF */
159 # define SCSPTR1 0xfffe8820 /* 16 bit SCIF */
160 # define SCSPTR2 0xfffe9020 /* 16 bit SCIF */
161 # define SCSPTR3 0xfffe9820 /* 16 bit SCIF */
162 # if defined(CONFIG_CPU_SUBTYPE_SH7201)
163 # define SCSPTR4 0xfffeA020 /* 16 bit SCIF */
164 # define SCSPTR5 0xfffeA820 /* 16 bit SCIF */
165 # define SCSPTR6 0xfffeB020 /* 16 bit SCIF */
166 # define SCSPTR7 0xfffeB820 /* 16 bit SCIF */
168 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
169 #elif defined(CONFIG_CPU_SUBTYPE_SH7619)
170 # define SCSPTR0 0xf8400020 /* 16 bit SCIF */
171 # define SCSPTR1 0xf8410020 /* 16 bit SCIF */
172 # define SCSPTR2 0xf8420020 /* 16 bit SCIF */
173 # define SCIF_ORER 0x0001 /* overrun error bit */
174 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
175 #elif defined(CONFIG_CPU_SUBTYPE_SHX3)
176 # define SCSPTR0 0xffc30020 /* 16 bit SCIF */
177 # define SCSPTR1 0xffc40020 /* 16 bit SCIF */
178 # define SCSPTR2 0xffc50020 /* 16 bit SCIF */
179 # define SCSPTR3 0xffc60020 /* 16 bit SCIF */
180 # define SCIF_ORER 0x0001 /* Overrun error bit */
181 # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
183 # error CPU subtype not defined
187 #define SCI_CTRL_FLAGS_TIE 0x80 /* all */
188 #define SCI_CTRL_FLAGS_RIE 0x40 /* all */
189 #define SCI_CTRL_FLAGS_TE 0x20 /* all */
190 #define SCI_CTRL_FLAGS_RE 0x10 /* all */
191 #if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
192 defined(CONFIG_CPU_SUBTYPE_SH7091) || \
193 defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
194 defined(CONFIG_CPU_SUBTYPE_SH7722) || \
195 defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
196 defined(CONFIG_CPU_SUBTYPE_SH7751) || \
197 defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
198 defined(CONFIG_CPU_SUBTYPE_SH7763) || \
199 defined(CONFIG_CPU_SUBTYPE_SH7780) || \
200 defined(CONFIG_CPU_SUBTYPE_SH7785) || \
201 defined(CONFIG_CPU_SUBTYPE_SH7786) || \
202 defined(CONFIG_CPU_SUBTYPE_SHX3)
203 #define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
204 #elif defined(CONFIG_CPU_SUBTYPE_SH7724)
205 #define SCI_CTRL_FLAGS_REIE ((port)->type == PORT_SCIFA ? 0 : 8)
207 #define SCI_CTRL_FLAGS_REIE 0
209 /* SCI_CTRL_FLAGS_MPIE 0x08 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
210 /* SCI_CTRL_FLAGS_TEIE 0x04 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
211 /* SCI_CTRL_FLAGS_CKE1 0x02 * all */
212 /* SCI_CTRL_FLAGS_CKE0 0x01 * 7707 SCI/SCIF, 7708 SCI, 7709 SCI/SCIF, 7750 SCI */
215 #define SCI_TDRE 0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
216 #define SCI_RDRF 0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
217 #define SCI_ORER 0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
218 #define SCI_FER 0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
219 #define SCI_PER 0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
220 #define SCI_TEND 0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
221 /* SCI_MPB 0x02 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
222 /* SCI_MPBT 0x01 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
224 #define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER)
227 #define SCIF_ER 0x0080 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
228 #define SCIF_TEND 0x0040 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
229 #define SCIF_TDFE 0x0020 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
230 #define SCIF_BRK 0x0010 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
231 #define SCIF_FER 0x0008 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
232 #define SCIF_PER 0x0004 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
233 #define SCIF_RDF 0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
234 #define SCIF_DR 0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
236 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
237 defined(CONFIG_CPU_SUBTYPE_SH7720) || \
238 defined(CONFIG_CPU_SUBTYPE_SH7721) || \
239 defined(CONFIG_ARCH_SH7367) || \
240 defined(CONFIG_ARCH_SH7377) || \
241 defined(CONFIG_ARCH_SH7372)
242 # define SCIF_ORER 0x0200
243 # define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER)
244 # define SCIF_RFDC_MASK 0x007f
245 # define SCIF_TXROOM_MAX 64
246 #elif defined(CONFIG_CPU_SUBTYPE_SH7763)
247 # define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK )
248 # define SCIF_RFDC_MASK 0x007f
249 # define SCIF_TXROOM_MAX 64
250 /* SH7763 SCIF2 support */
251 # define SCIF2_RFDC_MASK 0x001f
252 # define SCIF2_TXROOM_MAX 16
254 # define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
255 # define SCIF_RFDC_MASK 0x001f
256 # define SCIF_TXROOM_MAX 16
260 #define SCIF_ORER 0x0000
263 #define SCxSR_TEND(port) (((port)->type == PORT_SCI) ? SCI_TEND : SCIF_TEND)
264 #define SCxSR_ERRORS(port) (((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)
265 #define SCxSR_RDxF(port) (((port)->type == PORT_SCI) ? SCI_RDRF : SCIF_RDF)
266 #define SCxSR_TDxE(port) (((port)->type == PORT_SCI) ? SCI_TDRE : SCIF_TDFE)
267 #define SCxSR_FER(port) (((port)->type == PORT_SCI) ? SCI_FER : SCIF_FER)
268 #define SCxSR_PER(port) (((port)->type == PORT_SCI) ? SCI_PER : SCIF_PER)
269 #define SCxSR_BRK(port) (((port)->type == PORT_SCI) ? 0x00 : SCIF_BRK)
270 #define SCxSR_ORER(port) (((port)->type == PORT_SCI) ? SCI_ORER : SCIF_ORER)
272 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
273 defined(CONFIG_CPU_SUBTYPE_SH7720) || \
274 defined(CONFIG_CPU_SUBTYPE_SH7721) || \
275 defined(CONFIG_ARCH_SH7367) || \
276 defined(CONFIG_ARCH_SH7377) || \
277 defined(CONFIG_ARCH_SH7372)
278 # define SCxSR_RDxF_CLEAR(port) (sci_in(port, SCxSR) & 0xfffc)
279 # define SCxSR_ERROR_CLEAR(port) (sci_in(port, SCxSR) & 0xfd73)
280 # define SCxSR_TDxE_CLEAR(port) (sci_in(port, SCxSR) & 0xffdf)
281 # define SCxSR_BREAK_CLEAR(port) (sci_in(port, SCxSR) & 0xffe3)
283 # define SCxSR_RDxF_CLEAR(port) (((port)->type == PORT_SCI) ? 0xbc : 0x00fc)
284 # define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073)
285 # define SCxSR_TDxE_CLEAR(port) (((port)->type == PORT_SCI) ? 0x78 : 0x00df)
286 # define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3)
290 #define SCFCR_RFRST 0x0002
291 #define SCFCR_TFRST 0x0004
292 #define SCFCR_TCRST 0x4000
293 #define SCFCR_MCE 0x0008
295 #define SCI_MAJOR 204
296 #define SCI_MINOR_START 8
298 /* Generic serial flags */
299 #define SCI_RX_THROTTLE 0x0000001
301 #define SCI_MAGIC 0xbabeface
304 * Events are used to schedule things to happen at timer-interrupt
305 * time, instead of at rs interrupt time.
307 #define SCI_EVENT_WRITE_WAKEUP 0
309 #define SCI_IN(size, offset) \
311 return ioread8(port->membase + (offset)); \
313 return ioread16(port->membase + (offset)); \
315 #define SCI_OUT(size, offset, value) \
317 iowrite8(value, port->membase + (offset)); \
318 } else if ((size) == 16) { \
319 iowrite16(value, port->membase + (offset)); \
322 #define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
323 static inline unsigned int sci_##name##_in(struct uart_port *port) \
325 if (port->type == PORT_SCIF || port->type == PORT_SCIFB) { \
326 SCI_IN(scif_size, scif_offset) \
327 } else { /* PORT_SCI or PORT_SCIFA */ \
328 SCI_IN(sci_size, sci_offset); \
331 static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
333 if (port->type == PORT_SCIF || port->type == PORT_SCIFB) { \
334 SCI_OUT(scif_size, scif_offset, value) \
335 } else { /* PORT_SCI or PORT_SCIFA */ \
336 SCI_OUT(sci_size, sci_offset, value); \
341 /* h8300 don't have SCIF */
342 #define CPU_SCIF_FNS(name) \
343 static inline unsigned int sci_##name##_in(struct uart_port *port) \
347 static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
351 #define CPU_SCIF_FNS(name, scif_offset, scif_size) \
352 static inline unsigned int sci_##name##_in(struct uart_port *port) \
354 SCI_IN(scif_size, scif_offset); \
356 static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
358 SCI_OUT(scif_size, scif_offset, value); \
362 #define CPU_SCI_FNS(name, sci_offset, sci_size) \
363 static inline unsigned int sci_##name##_in(struct uart_port* port) \
365 SCI_IN(sci_size, sci_offset); \
367 static inline void sci_##name##_out(struct uart_port* port, unsigned int value) \
369 SCI_OUT(sci_size, sci_offset, value); \
372 #if defined(CONFIG_CPU_SH3) || \
373 defined(CONFIG_ARCH_SH7367) || \
374 defined(CONFIG_ARCH_SH7377) || \
375 defined(CONFIG_ARCH_SH7372)
376 #if defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
377 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
378 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
379 h8_sci_offset, h8_sci_size) \
380 CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
381 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
382 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
383 #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
384 defined(CONFIG_CPU_SUBTYPE_SH7720) || \
385 defined(CONFIG_CPU_SUBTYPE_SH7721) || \
386 defined(CONFIG_ARCH_SH7367) || \
387 defined(CONFIG_ARCH_SH7377)
388 #define SCIF_FNS(name, scif_offset, scif_size) \
389 CPU_SCIF_FNS(name, scif_offset, scif_size)
390 #elif defined(CONFIG_ARCH_SH7372)
391 #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scifb_offset, sh4_scifb_size) \
392 CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scifb_offset, sh4_scifb_size)
393 #define SCIF_FNS(name, scif_offset, scif_size) \
394 CPU_SCIF_FNS(name, scif_offset, scif_size)
396 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
397 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
398 h8_sci_offset, h8_sci_size) \
399 CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh3_scif_offset, sh3_scif_size)
400 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
401 CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size)
403 #elif defined(__H8300H__) || defined(__H8300S__)
404 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
405 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
406 h8_sci_offset, h8_sci_size) \
407 CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size)
408 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
410 #elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
411 defined(CONFIG_CPU_SUBTYPE_SH7724)
412 #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size) \
413 CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size)
414 #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \
415 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
417 #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
418 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
419 h8_sci_offset, h8_sci_size) \
420 CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
421 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
422 CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
425 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
426 defined(CONFIG_CPU_SUBTYPE_SH7720) || \
427 defined(CONFIG_CPU_SUBTYPE_SH7721) || \
428 defined(CONFIG_ARCH_SH7367) || \
429 defined(CONFIG_ARCH_SH7377)
431 SCIF_FNS(SCSMR, 0x00, 16)
432 SCIF_FNS(SCBRR, 0x04, 8)
433 SCIF_FNS(SCSCR, 0x08, 16)
434 SCIF_FNS(SCTDSR, 0x0c, 8)
435 SCIF_FNS(SCFER, 0x10, 16)
436 SCIF_FNS(SCxSR, 0x14, 16)
437 SCIF_FNS(SCFCR, 0x18, 16)
438 SCIF_FNS(SCFDR, 0x1c, 16)
439 SCIF_FNS(SCxTDR, 0x20, 8)
440 SCIF_FNS(SCxRDR, 0x24, 8)
441 SCIF_FNS(SCLSR, 0x00, 0)
442 #elif defined(CONFIG_ARCH_SH7372)
443 SCIF_FNS(SCSMR, 0x00, 16)
444 SCIF_FNS(SCBRR, 0x04, 8)
445 SCIF_FNS(SCSCR, 0x08, 16)
446 SCIF_FNS(SCTDSR, 0x0c, 16)
447 SCIF_FNS(SCFER, 0x10, 16)
448 SCIF_FNS(SCxSR, 0x14, 16)
449 SCIF_FNS(SCFCR, 0x18, 16)
450 SCIF_FNS(SCFDR, 0x1c, 16)
451 SCIF_FNS(SCTFDR, 0x38, 16)
452 SCIF_FNS(SCRFDR, 0x3c, 16)
453 SCIx_FNS(SCxTDR, 0x20, 8, 0x40, 8)
454 SCIx_FNS(SCxRDR, 0x24, 8, 0x60, 8)
455 SCIF_FNS(SCLSR, 0x00, 0)
456 #elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
457 defined(CONFIG_CPU_SUBTYPE_SH7724)
458 SCIx_FNS(SCSMR, 0x00, 16, 0x00, 16)
459 SCIx_FNS(SCBRR, 0x04, 8, 0x04, 8)
460 SCIx_FNS(SCSCR, 0x08, 16, 0x08, 16)
461 SCIx_FNS(SCxTDR, 0x20, 8, 0x0c, 8)
462 SCIx_FNS(SCxSR, 0x14, 16, 0x10, 16)
463 SCIx_FNS(SCxRDR, 0x24, 8, 0x14, 8)
464 SCIx_FNS(SCSPTR, 0, 0, 0, 0)
465 SCIF_FNS(SCTDSR, 0x0c, 8)
466 SCIF_FNS(SCFER, 0x10, 16)
467 SCIF_FNS(SCFCR, 0x18, 16)
468 SCIF_FNS(SCFDR, 0x1c, 16)
469 SCIF_FNS(SCLSR, 0x24, 16)
471 /* reg SCI/SH3 SCI/SH4 SCIF/SH3 SCIF/SH4 SCI/H8*/
472 /* name off sz off sz off sz off sz off sz*/
473 SCIx_FNS(SCSMR, 0x00, 8, 0x00, 8, 0x00, 8, 0x00, 16, 0x00, 8)
474 SCIx_FNS(SCBRR, 0x02, 8, 0x04, 8, 0x02, 8, 0x04, 8, 0x01, 8)
475 SCIx_FNS(SCSCR, 0x04, 8, 0x08, 8, 0x04, 8, 0x08, 16, 0x02, 8)
476 SCIx_FNS(SCxTDR, 0x06, 8, 0x0c, 8, 0x06, 8, 0x0C, 8, 0x03, 8)
477 SCIx_FNS(SCxSR, 0x08, 8, 0x10, 8, 0x08, 16, 0x10, 16, 0x04, 8)
478 SCIx_FNS(SCxRDR, 0x0a, 8, 0x14, 8, 0x0A, 8, 0x14, 8, 0x05, 8)
479 SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16)
480 #if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
481 defined(CONFIG_CPU_SUBTYPE_SH7780) || \
482 defined(CONFIG_CPU_SUBTYPE_SH7785) || \
483 defined(CONFIG_CPU_SUBTYPE_SH7786)
484 SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16)
485 SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16)
486 SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16)
487 SCIF_FNS(SCSPTR, 0, 0, 0x24, 16)
488 SCIF_FNS(SCLSR, 0, 0, 0x28, 16)
489 #elif defined(CONFIG_CPU_SUBTYPE_SH7763)
490 SCIF_FNS(SCFDR, 0, 0, 0x1C, 16)
491 SCIF_FNS(SCSPTR2, 0, 0, 0x20, 16)
492 SCIF_FNS(SCLSR2, 0, 0, 0x24, 16)
493 SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16)
494 SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16)
495 SCIF_FNS(SCSPTR, 0, 0, 0x24, 16)
496 SCIF_FNS(SCLSR, 0, 0, 0x28, 16)
498 SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16)
499 #if defined(CONFIG_CPU_SUBTYPE_SH7722)
500 SCIF_FNS(SCSPTR, 0, 0, 0, 0)
502 SCIF_FNS(SCSPTR, 0, 0, 0x20, 16)
504 SCIF_FNS(SCLSR, 0, 0, 0x24, 16)
507 #define sci_in(port, reg) sci_##reg##_in(port)
508 #define sci_out(port, reg, value) sci_##reg##_out(port, value)
510 /* H8/300 series SCI pins assignment */
511 #if defined(__H8300H__) || defined(__H8300S__)
512 static const struct __attribute__((packed)) {
513 int port; /* GPIO port no */
514 unsigned short rx,tx; /* GPIO bit no */
515 } h8300_sci_pins[] = {
516 #if defined(CONFIG_H83007) || defined(CONFIG_H83068)
518 .port = H8300_GPIO_P9,
523 .port = H8300_GPIO_P9,
528 .port = H8300_GPIO_PB,
532 #elif defined(CONFIG_H8S2678)
534 .port = H8300_GPIO_P3,
539 .port = H8300_GPIO_P3,
544 .port = H8300_GPIO_P5,
552 #if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
553 defined(CONFIG_CPU_SUBTYPE_SH7707) || \
554 defined(CONFIG_CPU_SUBTYPE_SH7708) || \
555 defined(CONFIG_CPU_SUBTYPE_SH7709)
556 static inline int sci_rxd_in(struct uart_port *port)
558 if (port->mapbase == 0xfffffe80)
559 return __raw_readb(SCPDR)&0x01 ? 1 : 0; /* SCI */
562 #elif defined(CONFIG_CPU_SUBTYPE_SH7750) || \
563 defined(CONFIG_CPU_SUBTYPE_SH7751) || \
564 defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
565 defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
566 defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
567 defined(CONFIG_CPU_SUBTYPE_SH7091)
568 static inline int sci_rxd_in(struct uart_port *port)
570 if (port->mapbase == 0xffe00000)
571 return __raw_readb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */
574 #elif defined(__H8300H__) || defined(__H8300S__)
575 static inline int sci_rxd_in(struct uart_port *port)
577 int ch = (port->mapbase - SMR0) >> 3;
578 return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0;
580 #else /* default case for non-SCI processors */
581 static inline int sci_rxd_in(struct uart_port *port)
588 * Values for the BitRate Register (SCBRR)
590 * The values are actually divisors for a frequency which can
591 * be internal to the SH3 (14.7456MHz) or derived from an external
592 * clock source. This driver assumes the internal clock is used;
593 * to support using an external clock source, config options or
594 * possibly command-line options would need to be added.
596 * Also, to support speeds below 2400 (why?) the lower 2 bits of
597 * the SCSMR register would also need to be set to non-zero values.
599 * -- Greg Banks 27Feb2000
601 * Answer: The SCBRR register is only eight bits, and the value in
602 * it gets larger with lower baud rates. At around 2400 (depending on
603 * the peripherial module clock) you run out of bits. However the
604 * lower two bits of SCSMR allow the module clock to be divided down,
605 * scaling the value which is needed in SCBRR.
607 * -- Stuart Menefy - 23 May 2000
609 * I meant, why would anyone bother with bitrates below 2400.
611 * -- Greg Banks - 7Jul2000
613 * You "speedist"! How will I use my 110bps ASR-33 teletype with paper
614 * tape reader as a console!
616 * -- Mitch Davis - 15 Jul 2000
619 #if defined(CONFIG_CPU_SUBTYPE_SH7780) || \
620 defined(CONFIG_CPU_SUBTYPE_SH7785) || \
621 defined(CONFIG_CPU_SUBTYPE_SH7786)
622 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
623 #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
624 defined(CONFIG_CPU_SUBTYPE_SH7720) || \
625 defined(CONFIG_CPU_SUBTYPE_SH7721) || \
626 defined(CONFIG_ARCH_SH7367) || \
627 defined(CONFIG_ARCH_SH7377) || \
628 defined(CONFIG_ARCH_SH7372)
629 #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
630 #elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
631 defined(CONFIG_CPU_SUBTYPE_SH7724)
632 static inline int scbrr_calc(struct uart_port *port, int bps, int clk)
634 if (port->type == PORT_SCIF)
635 return (clk+16*bps)/(32*bps)-1;
637 return ((clk*2)+16*bps)/(16*bps)-1;
639 #define SCBRR_VALUE(bps, clk) scbrr_calc(port, bps, clk)
640 #elif defined(__H8300H__) || defined(__H8300S__)
641 #define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
642 #else /* Generic SH */
643 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)