elan520reg.h revision 1.7.2.1 1 /* $NetBSD: elan520reg.h,v 1.7.2.1 2008/02/18 21:04:41 mjf Exp $ */
2
3 /*-
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 /*
40 * Register definitions for the AMD Elan SC520 System Controller.
41 */
42
43 #ifndef _I386_PCI_ELAN520REG_H_
44 #define _I386_PCI_ELAN520REG_H_
45
46 #define MMCR_BASE_ADDR 0xfffef000
47
48 /*
49 * Am5x86 CPU Registers.
50 */
51 #define MMCR_REVID 0x0000
52 #define MMCR_CPUCTL 0x0002
53
54 #define REVID_PRODID 0xff00 /* product ID */
55 #define REVID_PRODID_SHIFT 8
56 #define REVID_MAJSTEP 0x00f0 /* stepping major */
57 #define REVID_MAJSTEP_SHIFT 4
58 #define REVID_MINSTEP 0x000f /* stepping minor */
59
60 #define PRODID_ELAN_SC520 0x00 /* Elan SC520 */
61
62 #define CPUCTL_CPU_CLK_SPD_MASK 0x03 /* CPU clock speed */
63 #define CPUCTL_CACHE_WR_MODE 0x10 /* cache mode (0 = wb, 1 = wt) */
64
65 /*
66 * Performance Registers
67 */
68 #define MMCR_DBCTL 0x0040 /* SDRAM Buffer Control */
69
70 #define MMCR_DBCTL_RAB_ENB __BIT(4) /* enable read-ahead */
71 #define MMCR_DBCTL_WB_WM_MASK __BITS(3,2) /* write buffer watermark */
72 #define MMCR_DBCTL_WB_WM_28DW __SHIFTIN(0, MMCR_DBCTL_WB_WM_MASK)
73 #define MMCR_DBCTL_WB_WM_24DW __SHIFTIN(1, MMCR_DBCTL_WB_WM_MASK)
74 #define MMCR_DBCTL_WB_WM_16DW __SHIFTIN(2, MMCR_DBCTL_WB_WM_MASK)
75 #define MMCR_DBCTL_WB_WM_8DW __SHIFTIN(3, MMCR_DBCTL_WB_WM_MASK)
76 #define MMCR_DBCTL_WB_FLUSH __BIT(1) /* write 1 to flush wr buf */
77 #define MMCR_DBCTL_WB_ENB __BIT(0) /* enable write buffer */
78 #define MMCR_HBCTL 0x0060 /* Host Bridge Control */
79 #define MMCR_HBCTL_PCI_RST __BIT(15)
80 #define MMCR_HBCTL_T_PURGE_RD_ENB __BIT(10)
81 #define MMCR_HBCTL_T_DLYTR_ENB_MASK __BITS(9,8)
82 #define MMCR_HBCTL_T_DLYTR_ENB_WAIT \
83 __SHIFTIN(0, MMCR_HBCTL_T_DLYTR_ENB_MASK)
84 #define MMCR_HBCTL_T_DLYTR_ENB_AUTORETRY\
85 __SHIFTIN(1, MMCR_HBCTL_T_DLYTR_ENB_MASK)
86 #define MMCR_HBCTL_T_DLYTR_ENB_RSVD0 \
87 __SHIFTIN(2, MMCR_HBCTL_T_DLYTR_ENB_MASK)
88 #define MMCR_HBCTL_T_DLYTR_ENB_RSVD1 \
89 __SHIFTIN(3, MMCR_HBCTL_T_DLYTR_ENB_MASK)
90 #define MMCR_HBCTL_M_WPOST_ENB __BIT(3)
91 #define MMCR_SYSARBCTL 0x0070 /* System Arbiter Control */
92 #define MMCR_SYSARBCTL_CNCR_MODE_ENB __BIT(1)
93
94 /*
95 * PCI Host Bridge Registers
96 */
97 #define MMCR_HBMSTIRQCTL 0x66 /* Host Bridge Master Interrupt Ctrl */
98 #define MMCR_M_RTRTO_IRQ_SEL __BIT(13) /* Master Retry Time-Out
99 * Interrupt Select
100 */
101 #define MMCR_M_TABRT_IRQ_SEL __BIT(12) /* Master Target Abort
102 * Interrupt Select
103 */
104 #define MMCR_M_MABRT_IRQ_SEL __BIT(11) /* Master Abort
105 * Interrupt Select
106 */
107 #define MMCR_M_SERR_IRQ_SEL __BIT(10) /* Master System Error
108 * Interrupt Select
109 */
110 #define MMCR_M_RPER_IRQ_SEL __BIT(9) /* Master Received PERR
111 * Interrupt Select
112 */
113 #define MMCR_M_DPER_IRQ_SEL __BIT(8) /* Master Detected PERR
114 * Interrupt Select
115 */
116 #define MMCR_M_RTRTO_IRQ_ENB __BIT(5) /* Master Retry Time-Out
117 * Interrupt Enable
118 */
119 #define MMCR_M_TABRT_IRQ_ENB __BIT(4) /* Master Target Abort
120 * Interrupt Enable
121 */
122 #define MMCR_M_MABRT_IRQ_ENB __BIT(3) /* Master Abort
123 * Interrupt Enable
124 */
125 #define MMCR_M_SERR_IRQ_ENB __BIT(2) /* Master System Error
126 * Interrupt Enable
127 */
128 #define MMCR_M_RPER_IRQ_ENB __BIT(1) /* Master Received PERR
129 * Interrupt Enable
130 */
131 #define MMCR_M_DPER_IRQ_ENB __BIT(0) /* Master Detected PERR
132 * Interrupt Enable
133 */
134
135 #define MMCR_HBTGTIRQCTL 0x62 /* Host Bridge Target Interrupt Ctrl */
136
137 #define MMCR_PCIHOSTMAP 0x0d14 /* PCI Host Bridge Interrupt Mapping */
138
139 #define MMCR_PCIHOSTMAP_PCI_NMI_ENB __BIT(8)
140 #define MMCR_PCIHOSTMAP_PCI_IRQ_MAP __BITS(4, 0)
141
142 /* Programmable Interrupt Controller. 8 bits. */
143 #define MMCR_PICICR 0xd00
144 #define MMCR_PICICR_NMI_DONE __BIT(7)
145 #define MMCR_PICICR_NMI_ENB __BIT(6)
146 #define MMCR_PICICR_RSVD0 __BITS(5, 3)
147 #define MMCR_PICICR_S2_GINT_MODE __BIT(2)
148 #define MMCR_PICICR_S1_GINT_MODE __BIT(1)
149 #define MMCR_PICICR_M_GINT_MODE __BIT(0)
150
151 #define MMCR_MPICMODE 0xd02
152 #define MMCR_SL1PICMODE 0xd03
153 #define MMCR_SL2PICMODE 0xd04
154
155 #define MMCR_WPVMAP 0xd44
156 #define MMCR_WPVMAP_RSVD0 __BITS(7, 5)
157 /* map write-protection violations to an Elan SC520 interrupt priority,
158 * 1 through 22
159 */
160 #define MMCR_WPVMAP_INT_MAP __BITS(4, 0)
161 /* no bits set -> disable */
162 #define MMCR_WPVMAP_INT_OFF 0
163 /* all bits set -> NMI */
164 #define MMCR_WPVMAP_INT_NMI MMCR_WPVMAP_INT_MAP
165
166 #define MMCR_ADDDECCTL 0x80
167 #define MMCR_ADDDECCTL_WPV_INT_ENB __BIT(7)
168
169 #define MMCR_WPVSTA 0x82
170 #define MMCR_WPVSTA_WPV_STA __BIT(15)
171 #define MMCR_WPVSTA_WPV_RSVD0 __BITS(14, 10)
172 #define MMCR_WPVSTA_WPV_MSTR __BITS(9, 8)
173 #define MMCR_WPVSTA_WPV_MSTR_CPU __SHIFTIN(0, MMCR_WPVSTA_WPV_MSTR)
174 #define MMCR_WPVSTA_WPV_MSTR_PCI __SHIFTIN(1, MMCR_WPVSTA_WPV_MSTR)
175 #define MMCR_WPVSTA_WPV_MSTR_GP __SHIFTIN(2, MMCR_WPVSTA_WPV_MSTR)
176 #define MMCR_WPVSTA_WPV_MSTR_RSVD __SHIFTIN(3, MMCR_WPVSTA_WPV_MSTR)
177 #define MMCR_WPVSTA_WPV_RSVD1 __BITS(7, 4)
178 #define MMCR_WPVSTA_WPV_WINDOW __BITS(3, 0)
179
180 #define MMCR_PAR(__i) (0x88 + 4 * (__i))
181 #define MMCR_PAR_TARGET __BITS(31, 29)
182 #define MMCR_PAR_TARGET_OFF __SHIFTIN(0, MMCR_PAR_TARGET)
183 #define MMCR_PAR_TARGET_GPIO __SHIFTIN(1, MMCR_PAR_TARGET)
184 #define MMCR_PAR_TARGET_GPMEM __SHIFTIN(2, MMCR_PAR_TARGET)
185 #define MMCR_PAR_TARGET_PCI __SHIFTIN(3, MMCR_PAR_TARGET)
186 #define MMCR_PAR_TARGET_BOOTCS __SHIFTIN(4, MMCR_PAR_TARGET)
187 #define MMCR_PAR_TARGET_ROMCS1 __SHIFTIN(5, MMCR_PAR_TARGET)
188 #define MMCR_PAR_TARGET_ROMCS2 __SHIFTIN(6, MMCR_PAR_TARGET)
189 #define MMCR_PAR_TARGET_SDRAM __SHIFTIN(7, MMCR_PAR_TARGET)
190 #define MMCR_PAR_ATTR __BITS(28, 26)
191 #define MMCR_PAR_ATTR_NOEXEC __SHIFTIN(__BIT(2), MMCR_PAR_ATTR)
192 #define MMCR_PAR_ATTR_NOCACHE __SHIFTIN(__BIT(1), MMCR_PAR_ATTR)
193 #define MMCR_PAR_ATTR_NOWRITE __SHIFTIN(__BIT(0), MMCR_PAR_ATTR)
194 #define MMCR_PAR_PG_SZ __BIT(25)
195 #define MMCR_PAR_SZ_ST_ADR __BITS(24, 0)
196 #define MMCR_PAR_4KB_SZ __BITS(24, 18)
197 #define MMCR_PAR_4KB_ST_ADR __BITS(17, 0)
198 #define MMCR_PAR_64KB_SZ __BITS(24, 14)
199 #define MMCR_PAR_64KB_ST_ADR __BITS(13, 0)
200 #define MMCR_PAR_IO_SZ __BITS(24, 16)
201 #define MMCR_PAR_IO_ST_ADR __BITS(15, 0)
202
203 /*
204 * General Purpose Bus Registers
205 */
206 #define MMCR_GPECHO 0x0c00 /* GP echo mode */
207 #define MMCR_GPCSDW 0x0c01 /* GP chip sel data width */
208 #define MMCR_CPCSQUAL 0x0c02 /* GP chip sel qualification */
209 #define MMCR_GPCSRT 0x0c08 /* GP chip sel recovery time */
210 #define MMCR_GPCSPW 0x0c09 /* GP chip sel pulse width */
211 #define MMCR_GPCSOFF 0x0c0a /* GP chip sel offset */
212 #define MMCR_GPRDW 0x0c0b /* GP read pulse width */
213 #define MMCR_GPRDOFF 0x0c0c /* GP read offset */
214 #define MMCR_GPWRW 0x0c0d /* GP write pulse width */
215 #define MMCR_GPWROFF 0x0c0e /* GP write offset */
216 #define MMCR_GPALEW 0x0c0f /* GPALE pulse width */
217 #define MMCR_GPALEOFF 0x0c10 /* GPALE offset */
218
219 #define GPECHO_GP_ECHO_ENB 0x01 /* GP bus echo mode enable */
220
221 /*
222 * Programmable Input/Output Registers
223 */
224 #define MMCR_PIOPFS15_0 0x0c20 /* PIO15-PIO0 pin func sel */
225 #define MMCR_PIOPFS31_16 0x0c22 /* PIO31-PIO16 pin func sel */
226 #define MMCR_CSPFS 0x0c24 /* chip sel pin func sel */
227 #define MMCR_CLKSEL 0x0c26 /* clock select */
228 #define MMCR_DSCTL 0x0c28 /* drive strength control */
229 #define MMCR_PIODIR15_0 0x0c2a /* PIO15-PIO0 direction */
230 #define MMCR_PIODIR31_16 0x0c2c /* PIO31-PIO16 direction */
231 #define MMCR_PIODATA15_0 0x0c30 /* PIO15-PIO0 data */
232 #define MMCR_PIODATA31_16 0x0c32 /* PIO31-PIO16 data */
233 #define MMCR_PIOSET15_0 0x0c34 /* PIO15-PIO0 set */
234 #define MMCR_PIOSET31_16 0x0c36 /* PIO31-PIO16 set */
235 #define MMCR_PIOCLR15_0 0x0c38 /* PIO15-PIO0 clear */
236 #define MMCR_PIOCLR31_16 0x0c3a /* PIO31-PIO16 clear */
237
238 #define ELANSC_PIO_NPINS 32 /* total number of PIO pins */
239
240 /*
241 * Watchdog Timer Registers.
242 */
243 #define MMCR_WDTMRCTL 0x0cb0 /* watchdog timer control */
244 #define MMCR_WDTMRCNTL 0x0cb2 /* watchdog timer count low */
245 #define MMCR_WDTMRCNTH 0x0cb4 /* watchdog timer count high */
246
247 #define WDTMRCTL_EXP_SEL_MASK 0x00ff /* exponent select */
248 #define WDTMRCTL_EXP_SEL14 0x0001 /* 496us/492us */
249 #define WDTMRCTL_EXP_SEL24 0x0002 /* 508ms/503ms */
250 #define WDTMRCTL_EXP_SEL25 0x0004 /* 1.02s/1.01s */
251 #define WDTMRCTL_EXP_SEL26 0x0008 /* 2.03s/2.01s */
252 #define WDTMRCTL_EXP_SEL27 0x0010 /* 4.07s/4.03s */
253 #define WDTMRCTL_EXP_SEL28 0x0020 /* 8.13s/8.05s */
254 #define WDTMRCTL_EXP_SEL29 0x0040 /* 16.27s/16.11s */
255 #define WDTMRCTL_EXP_SEL30 0x0080 /* 32.54s/32.21s */
256 #define WDTMRCTL_IRQ_FLG 0x1000 /* interrupt request */
257 #define WDTMRCTL_WRST_ENB 0x4000 /* watchdog timer reset enable */
258 #define WDTMRCTL_ENB 0x8000 /* watchdog timer enable */
259
260 #define WDTMRCTL_UNLOCK1 0x3333
261 #define WDTMRCTL_UNLOCK2 0xcccc
262
263 #define WDTMRCTL_RESET1 0xaaaa
264 #define WDTMRCTL_RESET2 0x5555
265
266 /*
267 * Reset Generation Registers.
268 */
269 #define MMCR_SYSINFO 0x0d70 /* system board information */
270 #define MMCR_RESCFG 0x0d72 /* reset configuration */
271 #define MMCR_RESSTA 0x0d74 /* reset status */
272
273 #define RESCFG_SYS_RST 0x01 /* software system reset */
274 #define RESCFG_GP_RST 0x02 /* assert GP bus reset */
275 #define RESCFG_PRG_RST_ENB 0x04 /* programmable reset enable */
276 #define RESCFG_ICE_ON_RST 0x08 /* enter AMDebug(tm) on reset */
277
278 #define RESSTA_PWRGOOD_DET 0x01 /* POWERGOOD reset detect */
279 #define RESSTA_PRGRST_DET 0x02 /* programmable reset detect */
280 #define RESSTA_SD_RST_DET 0x04 /* CPU shutdown reset detect */
281 #define RESSTA_WDT_RST_DET 0x08 /* watchdog timer reset detect */
282 #define RESSTA_ICE_SRST_DET 0x10 /* AMDebug(tm) soft reset detect */
283 #define RESSTA_ICE_HRST_DET 0x20 /* AMDebug(tm) soft reset detect */
284 #define RESSTA_SCP_RST 0x40 /* SCP reset detect */
285
286 #endif /* _I386_PCI_ELAN520REG_H_ */
287