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mace.h
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1 /*
2  * Definitions for the SGI MACE (Multimedia, Audio and Communications Engine)
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License. See the file "COPYING" in the main directory of this archive
6  * for more details.
7  *
8  * Copyright (C) 2000 Harald Koerfgen
9  * Copyright (C) 2004 Ladislav Michl
10  */
11 
12 #ifndef __ASM_MACE_H__
13 #define __ASM_MACE_H__
14 
15 /*
16  * Address map
17  */
18 #define MACE_BASE 0x1f000000 /* physical */
19 
20 /*
21  * PCI interface
22  */
23 struct mace_pci {
24  volatile unsigned int error_addr;
25  volatile unsigned int error;
26 #define MACEPCI_ERROR_MASTER_ABORT BIT(31)
27 #define MACEPCI_ERROR_TARGET_ABORT BIT(30)
28 #define MACEPCI_ERROR_DATA_PARITY_ERR BIT(29)
29 #define MACEPCI_ERROR_RETRY_ERR BIT(28)
30 #define MACEPCI_ERROR_ILLEGAL_CMD BIT(27)
31 #define MACEPCI_ERROR_SYSTEM_ERR BIT(26)
32 #define MACEPCI_ERROR_INTERRUPT_TEST BIT(25)
33 #define MACEPCI_ERROR_PARITY_ERR BIT(24)
34 #define MACEPCI_ERROR_OVERRUN BIT(23)
35 #define MACEPCI_ERROR_RSVD BIT(22)
36 #define MACEPCI_ERROR_MEMORY_ADDR BIT(21)
37 #define MACEPCI_ERROR_CONFIG_ADDR BIT(20)
38 #define MACEPCI_ERROR_MASTER_ABORT_ADDR_VALID BIT(19)
39 #define MACEPCI_ERROR_TARGET_ABORT_ADDR_VALID BIT(18)
40 #define MACEPCI_ERROR_DATA_PARITY_ADDR_VALID BIT(17)
41 #define MACEPCI_ERROR_RETRY_ADDR_VALID BIT(16)
42 #define MACEPCI_ERROR_SIG_TABORT BIT(4)
43 #define MACEPCI_ERROR_DEVSEL_MASK 0xc0
44 #define MACEPCI_ERROR_DEVSEL_FAST 0
45 #define MACEPCI_ERROR_DEVSEL_MED 0x40
46 #define MACEPCI_ERROR_DEVSEL_SLOW 0x80
47 #define MACEPCI_ERROR_FBB BIT(1)
48 #define MACEPCI_ERROR_66MHZ BIT(0)
49  volatile unsigned int control;
50 #define MACEPCI_CONTROL_INT(x) BIT(x)
51 #define MACEPCI_CONTROL_INT_MASK 0xff
52 #define MACEPCI_CONTROL_SERR_ENA BIT(8)
53 #define MACEPCI_CONTROL_ARB_N6 BIT(9)
54 #define MACEPCI_CONTROL_PARITY_ERR BIT(10)
55 #define MACEPCI_CONTROL_MRMRA_ENA BIT(11)
56 #define MACEPCI_CONTROL_ARB_N3 BIT(12)
57 #define MACEPCI_CONTROL_ARB_N4 BIT(13)
58 #define MACEPCI_CONTROL_ARB_N5 BIT(14)
59 #define MACEPCI_CONTROL_PARK_LIU BIT(15)
60 #define MACEPCI_CONTROL_INV_INT(x) BIT(16+x)
61 #define MACEPCI_CONTROL_INV_INT_MASK 0x00ff0000
62 #define MACEPCI_CONTROL_OVERRUN_INT BIT(24)
63 #define MACEPCI_CONTROL_PARITY_INT BIT(25)
64 #define MACEPCI_CONTROL_SERR_INT BIT(26)
65 #define MACEPCI_CONTROL_IT_INT BIT(27)
66 #define MACEPCI_CONTROL_RE_INT BIT(28)
67 #define MACEPCI_CONTROL_DPED_INT BIT(29)
68 #define MACEPCI_CONTROL_TAR_INT BIT(30)
69 #define MACEPCI_CONTROL_MAR_INT BIT(31)
70  volatile unsigned int rev;
71  unsigned int _pad[0xcf8/4 - 4];
72  volatile unsigned int config_addr;
73  union {
74  volatile unsigned char b[4];
75  volatile unsigned short w[2];
76  volatile unsigned int l;
77  } config_data;
78 };
79 #define MACEPCI_LOW_MEMORY 0x1a000000
80 #define MACEPCI_LOW_IO 0x18000000
81 #define MACEPCI_SWAPPED_VIEW 0
82 #define MACEPCI_NATIVE_VIEW 0x40000000
83 #define MACEPCI_IO 0x80000000
84 #define MACEPCI_HI_MEMORY 0x280000000
85 #define MACEPCI_HI_IO 0x100000000
86 
87 /*
88  * Video interface
89  */
90 struct mace_video {
91  unsigned long xxx; /* later... */
92 };
93 
94 /*
95  * Ethernet interface
96  */
97 struct mace_ethernet {
98  volatile u64 mac_ctrl;
99  volatile unsigned long int_stat;
100  volatile unsigned long dma_ctrl;
101  volatile unsigned long timer;
102  volatile unsigned long tx_int_al;
103  volatile unsigned long rx_int_al;
104  volatile unsigned long tx_info;
105  volatile unsigned long tx_info_al;
106  volatile unsigned long rx_buff;
107  volatile unsigned long rx_buff_al1;
108  volatile unsigned long rx_buff_al2;
109  volatile unsigned long diag;
110  volatile unsigned long phy_data;
111  volatile unsigned long phy_regs;
112  volatile unsigned long phy_trans_go;
113  volatile unsigned long backoff_seed;
114  /*===================================*/
115  volatile unsigned long imq_reserved[4];
116  volatile unsigned long mac_addr;
117  volatile unsigned long mac_addr2;
118  volatile unsigned long mcast_filter;
119  volatile unsigned long tx_ring_base;
120  /* Following are read-only registers for debugging */
121  volatile unsigned long tx_pkt1_hdr;
122  volatile unsigned long tx_pkt1_ptr[3];
123  volatile unsigned long tx_pkt2_hdr;
124  volatile unsigned long tx_pkt2_ptr[3];
125  /*===================================*/
126  volatile unsigned long rx_fifo;
127 };
128 
129 /*
130  * Peripherals
131  */
132 
133 /* Audio registers */
134 struct mace_audio {
135  volatile unsigned long control;
136  volatile unsigned long codec_control; /* codec status control */
137  volatile unsigned long codec_mask; /* codec status input mask */
138  volatile unsigned long codec_read; /* codec status read data */
139  struct {
140  volatile unsigned long control; /* channel control */
141  volatile unsigned long read_ptr; /* channel read pointer */
142  volatile unsigned long write_ptr; /* channel write pointer */
143  volatile unsigned long depth; /* channel depth */
144  } chan[3];
145 };
146 
147 
148 /* register definitions for parallel port DMA */
149 struct mace_parport {
150  /* 0 - do nothing,
151  * 1 - pulse terminal count to the device after buffer is drained */
152 #define MACEPAR_CONTEXT_LASTFLAG BIT(63)
153  /* Should not cross 4K page boundary */
154 #define MACEPAR_CONTEXT_DATA_BOUND 0x0000000000001000UL
155 #define MACEPAR_CONTEXT_DATALEN_MASK 0x00000fff00000000UL
156 #define MACEPAR_CONTEXT_DATALEN_SHIFT 32
157  /* Can be arbitrarily aligned on any byte boundary on output,
158  * 64 byte aligned on input */
159 #define MACEPAR_CONTEXT_BASEADDR_MASK 0x00000000ffffffffUL
160  volatile u64 context_a;
161  volatile u64 context_b;
162  /* 0 - mem->device, 1 - device->mem */
163 #define MACEPAR_CTLSTAT_DIRECTION BIT(0)
164  /* 0 - channel frozen, 1 - channel enabled */
165 #define MACEPAR_CTLSTAT_ENABLE BIT(1)
166  /* 0 - channel active, 1 - complete channel reset */
167 #define MACEPAR_CTLSTAT_RESET BIT(2)
168 #define MACEPAR_CTLSTAT_CTXB_VALID BIT(3)
169 #define MACEPAR_CTLSTAT_CTXA_VALID BIT(4)
170  volatile u64 cntlstat; /* Control/Status register */
171 #define MACEPAR_DIAG_CTXINUSE BIT(0)
172  /* 1 - Dma engine is enabled and processing something */
173 #define MACEPAR_DIAG_DMACTIVE BIT(1)
174  /* Counter of bytes left */
175 #define MACEPAR_DIAG_CTRMASK 0x0000000000003ffcUL
176 #define MACEPAR_DIAG_CTRSHIFT 2
177  volatile u64 diagnostic; /* RO: diagnostic register */
178 };
179 
180 /* ISA Control and DMA registers */
181 struct mace_isactrl {
182  volatile unsigned long ringbase;
183 #define MACEISA_RINGBUFFERS_SIZE (8 * 4096)
184 
185  volatile unsigned long misc;
186 #define MACEISA_FLASH_WE BIT(0) /* 1=> Enable FLASH writes */
187 #define MACEISA_PWD_CLEAR BIT(1) /* 1=> PWD CLEAR jumper detected */
188 #define MACEISA_NIC_DEASSERT BIT(2)
189 #define MACEISA_NIC_DATA BIT(3)
190 #define MACEISA_LED_RED BIT(4) /* 0=> Illuminate red LED */
191 #define MACEISA_LED_GREEN BIT(5) /* 0=> Illuminate green LED */
192 #define MACEISA_DP_RAM_ENABLE BIT(6)
193 
194  volatile unsigned long istat;
195  volatile unsigned long imask;
196 #define MACEISA_AUDIO_SW_INT BIT(0)
197 #define MACEISA_AUDIO_SC_INT BIT(1)
198 #define MACEISA_AUDIO1_DMAT_INT BIT(2)
199 #define MACEISA_AUDIO1_OF_INT BIT(3)
200 #define MACEISA_AUDIO2_DMAT_INT BIT(4)
201 #define MACEISA_AUDIO2_MERR_INT BIT(5)
202 #define MACEISA_AUDIO3_DMAT_INT BIT(6)
203 #define MACEISA_AUDIO3_MERR_INT BIT(7)
204 #define MACEISA_RTC_INT BIT(8)
205 #define MACEISA_KEYB_INT BIT(9)
206 #define MACEISA_KEYB_POLL_INT BIT(10)
207 #define MACEISA_MOUSE_INT BIT(11)
208 #define MACEISA_MOUSE_POLL_INT BIT(12)
209 #define MACEISA_TIMER0_INT BIT(13)
210 #define MACEISA_TIMER1_INT BIT(14)
211 #define MACEISA_TIMER2_INT BIT(15)
212 #define MACEISA_PARALLEL_INT BIT(16)
213 #define MACEISA_PAR_CTXA_INT BIT(17)
214 #define MACEISA_PAR_CTXB_INT BIT(18)
215 #define MACEISA_PAR_MERR_INT BIT(19)
216 #define MACEISA_SERIAL1_INT BIT(20)
217 #define MACEISA_SERIAL1_TDMAT_INT BIT(21)
218 #define MACEISA_SERIAL1_TDMAPR_INT BIT(22)
219 #define MACEISA_SERIAL1_TDMAME_INT BIT(23)
220 #define MACEISA_SERIAL1_RDMAT_INT BIT(24)
221 #define MACEISA_SERIAL1_RDMAOR_INT BIT(25)
222 #define MACEISA_SERIAL2_INT BIT(26)
223 #define MACEISA_SERIAL2_TDMAT_INT BIT(27)
224 #define MACEISA_SERIAL2_TDMAPR_INT BIT(28)
225 #define MACEISA_SERIAL2_TDMAME_INT BIT(29)
226 #define MACEISA_SERIAL2_RDMAT_INT BIT(30)
227 #define MACEISA_SERIAL2_RDMAOR_INT BIT(31)
228 
229  volatile unsigned long _pad[0x2000/8 - 4];
230 
231  volatile unsigned long dp_ram[0x400];
232  struct mace_parport parport;
233 };
234 
235 /* Keyboard & Mouse registers
236  * -> drivers/input/serio/maceps2.c */
237 struct mace_ps2port {
238  volatile unsigned long tx;
239  volatile unsigned long rx;
240  volatile unsigned long control;
241  volatile unsigned long status;
242 };
243 
244 struct mace_ps2 {
245  struct mace_ps2port keyb;
246  struct mace_ps2port mouse;
247 };
248 
249 /* I2C registers
250  * -> drivers/i2c/algos/i2c-algo-sgi.c */
251 struct mace_i2c {
252  volatile unsigned long config;
253 #define MACEI2C_RESET BIT(0)
254 #define MACEI2C_FAST BIT(1)
255 #define MACEI2C_DATA_OVERRIDE BIT(2)
256 #define MACEI2C_CLOCK_OVERRIDE BIT(3)
257 #define MACEI2C_DATA_STATUS BIT(4)
258 #define MACEI2C_CLOCK_STATUS BIT(5)
259  volatile unsigned long control;
260  volatile unsigned long data;
261 };
262 
263 /* Timer registers */
264 typedef union {
265  volatile unsigned long ust_msc;
266  struct reg {
267  volatile unsigned int ust;
268  volatile unsigned int msc;
269  } reg;
270 } timer_reg;
271 
272 struct mace_timers {
273  volatile unsigned long ust;
274 #define MACE_UST_PERIOD_NS 960
275 
276  volatile unsigned long compare1;
277  volatile unsigned long compare2;
278  volatile unsigned long compare3;
279 
280  timer_reg audio_in;
281  timer_reg audio_out1;
282  timer_reg audio_out2;
283  timer_reg video_in1;
284  timer_reg video_in2;
285  timer_reg video_out;
286 };
287 
288 struct mace_perif {
289  struct mace_audio audio;
290  char _pad0[0x10000 - sizeof(struct mace_audio)];
291 
292  struct mace_isactrl ctrl;
293  char _pad1[0x10000 - sizeof(struct mace_isactrl)];
294 
295  struct mace_ps2 ps2;
296  char _pad2[0x10000 - sizeof(struct mace_ps2)];
297 
298  struct mace_i2c i2c;
299  char _pad3[0x10000 - sizeof(struct mace_i2c)];
300 
301  struct mace_timers timers;
302  char _pad4[0x10000 - sizeof(struct mace_timers)];
303 };
304 
305 
306 /*
307  * ISA peripherals
308  */
309 
310 /* Parallel port */
311 struct mace_parallel {
312 };
313 
314 struct mace_ecp1284 { /* later... */
315 };
316 
317 /* Serial port */
318 struct mace_serial {
319  volatile unsigned long xxx; /* later... */
320 };
321 
322 struct mace_isa {
323  struct mace_parallel parallel;
324  char _pad1[0x8000 - sizeof(struct mace_parallel)];
325 
326  struct mace_ecp1284 ecp1284;
327  char _pad2[0x8000 - sizeof(struct mace_ecp1284)];
328 
329  struct mace_serial serial1;
330  char _pad3[0x8000 - sizeof(struct mace_serial)];
331 
332  struct mace_serial serial2;
333  char _pad4[0x8000 - sizeof(struct mace_serial)];
334 
335  volatile unsigned char rtc[0x10000];
336 };
337 
338 struct sgi_mace {
339  char _reserved[0x80000];
340 
341  struct mace_pci pci;
342  char _pad0[0x80000 - sizeof(struct mace_pci)];
343 
344  struct mace_video video_in1;
345  char _pad1[0x80000 - sizeof(struct mace_video)];
346 
347  struct mace_video video_in2;
348  char _pad2[0x80000 - sizeof(struct mace_video)];
349 
350  struct mace_video video_out;
351  char _pad3[0x80000 - sizeof(struct mace_video)];
352 
353  struct mace_ethernet eth;
354  char _pad4[0x80000 - sizeof(struct mace_ethernet)];
355 
356  struct mace_perif perif;
357  char _pad5[0x80000 - sizeof(struct mace_perif)];
358 
359  struct mace_isa isa;
360  char _pad6[0x80000 - sizeof(struct mace_isa)];
361 };
362 
363 extern struct sgi_mace __iomem *mace;
364 
365 #endif /* __ASM_MACE_H__ */
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