at91dbgureg.h revision 1.2 1 /* $NetBSD: at91dbgureg.h,v 1.2 2008/07/03 01:15:38 matt Exp $ */
2
3 /*
4 * Copyright (c) 2007 Embedtronics Oy
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Ichiro FUKUHARA.
18 * 4. The name of the company nor the name of the author may be used to
19 * endorse or promote products derived from this software without specific
20 * prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
26 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #ifndef _AT91DBGUREG_H_
36 #define _AT91DBGUREG_H_
37
38 #define AT91DBGU_BASE 0xFFFFF200 /* DBGU unit base addresses (physical) */
39 #define AT91DBGU_SIZE 0x200 /* DBGU peripheral address space size */
40
41 #define DBGU_CR 0x00UL /* Control Register */
42 #define DBGU_MR 0x04UL /* Mode Register */
43 #define DBGU_IER 0x08UL /* Interrupt Enable Register */
44 #define DBGU_IDR 0x0CUL /* Interrupt Disable Register */
45 #define DBGU_IMR 0x10UL /* Interrupt Mask Register */
46 #define DBGU_SR 0x14UL /* Status Register */
47 #define DBGU_RHR 0x18UL /* Receive Holding Register */
48 #define DBGU_THR 0x1CUL /* Transmit Holding Register */
49 #define DBGU_BRGR 0x20UL /* Baud Rate Generator Register */
50 #define DBGU_CIDR 0x40UL /* Chip ID Register */
51 #define DBGU_EXID 0x44UL /* Chip ID Extension Register */
52 #define DBGU_FNR 0x48UL /* Force NTRST Register */
53 #define DBGU_PDC 0x100UL
54
55 /* Control Register bits: */
56 #define DBGU_CR_RSTSTA 0x100 /* 1 = reset the status bits */
57 #define DBGU_CR_TXDIS 0x080 /* 1 = disable transmitter */
58 #define DBGU_CR_TXEN 0x040 /* 1 = enable transmitter */
59 #define DBGU_CR_RXDIS 0x020 /* 1 = disable receiver */
60 #define DBGU_CR_RXEN 0x010 /* 1 = enable receiver */
61 #define DBGU_CR_RSTTX 0x008 /* 1 = reset transmitter */
62 #define DBGU_CR_RSTRX 0x004 /* 1 = reset receiver */
63
64 /* Mode Register bits: */
65 #define DBGU_MR_CHMODE 0xC000 /* channel mode */
66 #define DBGU_MR_CHMOD_NORMAL 0x0000
67 #define DBGU_MR_CHMOD_ECHO 0x4000
68 #define DBGU_MR_CHMOD_LOCAL_LOOP 0x8000
69 #define DBGU_MR_CHMOD_REMOTE_LOOP 0xC000
70
71 #define DBGU_MR_PAR 0x0E00 /* parity type */
72 #define DBGU_MR_PAR_EVEN 0x0000
73 #define DBGU_MR_PAR_ODD 0x0200
74 #define DBGU_MR_PAR_SPACE 0x0400
75 #define DBGU_MR_PAR_MARK 0x0600
76 #define DBGU_MR_PAR_NONE 0x0800
77
78 /* Interrupt bits: */
79 #define DBGU_INT_COMMRX 0x80000000
80 #define DBGU_INT_COMMTX 0x40000000
81 #define DBGU_INT_RXBUFF 0x00001000
82 #define DBGU_INT_TXBUFE 0x00000800
83 #define DBGU_INT_TXEMPTY 0x00000200
84 #define DBGU_INT_PARE 0x00000080
85 #define DBGU_INT_FRAME 0x00000040
86 #define DBGU_INT_OVRE 0x00000020
87 #define DBGU_INT_ENDTX 0x00000010
88 #define DBGU_INT_ENDRX 0x00000008
89 #define DBGU_INT_TXRDY 0x00000002
90 #define DBGU_INT_RXRDY 0x00000001
91
92 /* Status register bits: */
93 #define DBGU_SR_COMMRX 0x80000000
94 #define DBGU_SR_COMMTX 0x40000000
95 #define DBGU_SR_RXBUFF 0x00001000
96 #define DBGU_SR_TXBUFE 0x00000800
97 #define DBGU_SR_TXEMPTY 0x00000200
98 #define DBGU_SR_PARE 0x00000080
99 #define DBGU_SR_FRAME 0x00000040
100 #define DBGU_SR_OVRE 0x00000020
101 #define DBGU_SR_ENDTX 0x00000010
102 #define DBGU_SR_ENDRX 0x00000008
103 #define DBGU_SR_TXRDY 0x00000002
104 #define DBGU_SR_RXRDY 0x00000001
105
106
107 /* Chip ID Register bits: */
108 #define DBGU_CIDR_EXT 0x80000000 /* 1 = Extended Chip ID exists */
109
110 #define DBGU_CIDR_NVPTYP 0x70000000 /* Nonvolatile Pgm Mem Type */
111 #define DBGU_CIDR_NVPTYP_ROM 0x00000000
112 #define DBGU_CIDR_NVPTYP_ROMLESS 0x10000000
113 #define DBGU_CIDR_NVPTYP_SRAM 0x40000000
114 #define DBGU_CIDR_NVPTYP_FLASH 0x20000000
115 #define DBGU_CIDR_NVTYP_ROM_FLASH 0x30000000 /* NVPSIZ is ROM size, NVPSIZ2 is Flash Size */
116
117 #define DBGU_CIDR_ARCH 0x0FF00000 /* Architecture identifier */
118 #define DBGU_CIDR_ARCH_AT91SAM9XX 0x01900000 /* AT91SAM9xx Series */
119 #define DBGU_CIDR_ARCH_AT91SAM9XEXX 0x02900000 /* AT91SAM9XExx Series */
120 #define DBGU_CIDR_ARCH_AT91X34 0x03400000 /* AT91x34 Series */
121 #define DBGU_CIDR_ARCH_CAP9 0x03900000 /* CAP9 Series */
122 #define DBGU_CIDR_ARCH_AT91X40 0x04000000 /* AT91x40 Series */
123 #define DBGU_CIDR_ARCH_AT91X42 0x04200000 /* AT91x42 Series */
124 #define DBGU_CIDR_ARCH_AT91X55 0x05500000 /* AT91x55 Series */
125 #define DBGU_CIDR_ARCH_AT91SAM7AXX 0x06000000 /* AT91SAM7Axx Series */
126 #define DBGU_CIDR_ARCH_AT91X63 0x06300000 /* AT91x63 Series */
127 #define DBGU_CIDR_ARCH_AT91SAM7SXX 0x07000000 /* AT91SAM7Sxx Series */
128 #define DBGU_CIDR_ARCH_AT91SAM7XCXX 0x07100000 /* AT91SAM7XCxx Series */
129 #define DBGU_CIDR_ARCH_AT91SAM7SEXX 0x07200000 /* AT91SAM7SExx Series */
130 #define DBGU_CIDR_ARCH_AT91SAM7LXX 0x07300000 /* AT91SAM7LExx Series */
131 #define DBGU_CIDR_ARCH_AT91SAM7XXX 0x07500000 /* AT91SAM7Xxx Series */
132 #define DBGU_CIDR_ARCH_AT91X92 0x09200000 /* AT91x92 Series */
133 #define DBGU_CIDR_ARCH_AT75CXX 0x0F000000 /* AT75Cxx Series */
134
135 #define DBGU_CIDR_SRAMSIZ 0x000F0000 /* Internal SRAM Size */
136 #define DBGU_CIDR_SRAMSIZ_1K 0x00010000
137 #define DBGU_CIDR_SRAMSIZ_2K 0x00020000
138 #define DBGU_CIDR_SRAMSIZ_4K 0x00050000
139 #define DBGU_CIDR_SRAMSIZ_8K 0x00080000
140 #define DBGU_CIDR_SRAMSIZ_16K 0x00090000
141 #define DBGU_CIDR_SRAMSIZ_32K 0x000A0000
142 #define DBGU_CIDR_SRAMSIZ_64K 0x000B0000
143 #define DBGU_CIDR_SRAMSIZ_128K 0x000C0000
144 #define DBGU_CIDR_SRAMSIZ_256K 0x000D0000
145 #define DBGU_CIDR_SRAMSIZ_96K 0x000E0000
146 #define DBGU_CIDR_SRAMSIZ_512K 0x000F0000
147
148 #define DBGU_CIDR_NVPSIZ 0x00000F00 /* Nonvolatile Pgm Mem Size */
149 #define DBGU_CIDR_NVPSIZ_NONE 0x00000000
150 #define DBGU_CIDR_NVPSIZ_8K 0x00000100
151 #define DBGU_CIDR_NVPSIZ_16K 0x00000200
152 #define DBGU_CIDR_NVPSIZ_32K 0x00000300
153 #define DBGU_CIDR_NVPSIZ_64K 0x00000500
154 #define DBGU_CIDR_NVPSIZ_128K 0x00000700
155 #define DBGU_CIDR_NVPSIZ_256K 0x00000900
156 #define DBGU_CIDR_NVPSIZ_512K 0x00000A00
157 #define DBGU_CIDR_NVPSIZ_1024K 0x00000C00
158 #define DBGU_CIDR_NVPSIZ_2048K 0x00000E00
159
160 #define DBGU_CIDR_NPVSIZ2 0x0000F000 /* Nonvolatile Pgm 2 Mem Size */
161 #define DBGU_CIDR_NVPSIZ2_NONE 0x00000000
162 #define DBGU_CIDR_NVPSIZ2_8K 0x00001000
163 #define DBGU_CIDR_NVPSIZ2_16K 0x00002000
164 #define DBGU_CIDR_NVPSIZ2_32K 0x00003000
165 #define DBGU_CIDR_NVPSIZ2_64K 0x00005000
166 #define DBGU_CIDR_NVPSIZ2_128K 0x00007000
167 #define DBGU_CIDR_NVPSIZ2_256K 0x00009000
168 #define DBGU_CIDR_NVPSIZ2_512K 0x0000A000
169 #define DBGU_CIDR_NVPSIZ2_1024K 0x0000C000
170 #define DBGU_CIDR_NVPSIZ2_2048K 0x0000E000
171
172 #define DBGU_CIDR_EPROC 0x000000E0 /* Embedded Processor ID */
173 #define DBGU_CIDR_EPROC_946ES 0x00000020
174 #define DBGU_CIDR_EPROC_7TDMI 0x00000040
175 #define DBGU_CIDR_EPROC_920T 0x00000080
176 #define DBGU_CIDR_EPROC_926EJS 0x000000E0
177
178 #define DBGU_CIDR_VERSION 0x0000001F /* version of the device */
179
180 #define DBGU_CIDR_AT91RM9200 0x09290781
181 #define DBGU_CIDR_AT91SAM9260 0x019803A0
182 #define DBGU_CIDR_AT91SAM9261 0x019703A0
183 #define DBGU_CIDR_AT91SAM9263 0x019607A0
184
185 #define AT91RM9200_CHIP_ID DBGU_CIDR_AT91RM9200
186 #define AT91SAM9260_CHIP_ID DBGU_CIDR_AT91SAM9260
187 #define AT91SAM9261_CHIP_ID DBGU_CIDR_AT91SAM9261
188 #define AT91SAM9263_CHIP_ID DBGU_CIDR_AT91SAM9263
189
190 #define DBGUREG(reg) *((volatile u_int32_t*)(AT91DBGU_BASE + (reg)))
191
192 #define DBGU_INIT(mstclk, speed) do { \
193 DBGUREG(DBGU_PDC + PDC_PTCR) = PDC_PTCR_TXTDIS | PDC_PTCR_RXTDIS; \
194 DBGUREG(DBGU_BRGR) = ((mstclk) / 16 + (speed) / 2) / (speed); \
195 DBGUREG(DBGU_MR) = DBGU_MR_PAR_NONE; \
196 DBGUREG(DBGU_CR) = DBGU_CR_RSTSTA | DBGU_CR_RSTTX | DBGU_CR_RSTRX; \
197 DBGUREG(DBGU_CR) = DBGU_CR_TXEN | DBGU_CR_RXEN; \
198 (void)DBGUREG(DBGU_SR); \
199 } while (/*CONSTCOND*/0)
200
201 #define DBGU_PUTC(ch) do { \
202 int s = splserial(); \
203 while ((DBGUREG(DBGU_SR) & DBGU_SR_TXRDY) == 0) { \
204 splx(s); s = splserial(); \
205 }; \
206 DBGUREG(DBGU_THR) = ch; \
207 splx(s); \
208 } while (/*CONSTCOND*/0)
209
210 #define DBGU_PEEKC() ((DBGUREG(DBGU_SR) & DBGU_SR_RXRDY) ? DBGUREG(DBGU_RHR) : -1)
211
212 #define DBGU_PUTS(string) do { \
213 const char *_ptr = (string); \
214 while (*_ptr) { \
215 DBGU_PUTC(*_ptr); \
216 _ptr++; \
217 } \
218 } while (/*CONSTCOND*/0)
219
220 #endif // _AT91DBGUREG_H_
221
222