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7c1c69bc CLG |
1 | /* |
2 | * ASPEED AST2400 SMC Controller (SPI Flash Only) | |
3 | * | |
4 | * Copyright (C) 2016 IBM Corp. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "qemu/osdep.h" | |
26 | #include "hw/sysbus.h" | |
27 | #include "sysemu/sysemu.h" | |
28 | #include "qemu/log.h" | |
0b8fa32f | 29 | #include "qemu/module.h" |
d6e3f50a | 30 | #include "qemu/error-report.h" |
7c1c69bc CLG |
31 | |
32 | #include "hw/ssi/aspeed_smc.h" | |
33 | ||
34 | /* CE Type Setting Register */ | |
35 | #define R_CONF (0x00 / 4) | |
36 | #define CONF_LEGACY_DISABLE (1 << 31) | |
37 | #define CONF_ENABLE_W4 20 | |
38 | #define CONF_ENABLE_W3 19 | |
39 | #define CONF_ENABLE_W2 18 | |
40 | #define CONF_ENABLE_W1 17 | |
41 | #define CONF_ENABLE_W0 16 | |
0707b34d CLG |
42 | #define CONF_FLASH_TYPE4 8 |
43 | #define CONF_FLASH_TYPE3 6 | |
44 | #define CONF_FLASH_TYPE2 4 | |
45 | #define CONF_FLASH_TYPE1 2 | |
46 | #define CONF_FLASH_TYPE0 0 | |
47 | #define CONF_FLASH_TYPE_NOR 0x0 | |
48 | #define CONF_FLASH_TYPE_NAND 0x1 | |
49 | #define CONF_FLASH_TYPE_SPI 0x2 | |
7c1c69bc CLG |
50 | |
51 | /* CE Control Register */ | |
52 | #define R_CE_CTRL (0x04 / 4) | |
53 | #define CTRL_EXTENDED4 4 /* 32 bit addressing for SPI */ | |
54 | #define CTRL_EXTENDED3 3 /* 32 bit addressing for SPI */ | |
55 | #define CTRL_EXTENDED2 2 /* 32 bit addressing for SPI */ | |
56 | #define CTRL_EXTENDED1 1 /* 32 bit addressing for SPI */ | |
57 | #define CTRL_EXTENDED0 0 /* 32 bit addressing for SPI */ | |
58 | ||
59 | /* Interrupt Control and Status Register */ | |
60 | #define R_INTR_CTRL (0x08 / 4) | |
61 | #define INTR_CTRL_DMA_STATUS (1 << 11) | |
62 | #define INTR_CTRL_CMD_ABORT_STATUS (1 << 10) | |
63 | #define INTR_CTRL_WRITE_PROTECT_STATUS (1 << 9) | |
64 | #define INTR_CTRL_DMA_EN (1 << 3) | |
65 | #define INTR_CTRL_CMD_ABORT_EN (1 << 2) | |
66 | #define INTR_CTRL_WRITE_PROTECT_EN (1 << 1) | |
67 | ||
68 | /* CEx Control Register */ | |
69 | #define R_CTRL0 (0x10 / 4) | |
0721309e CLG |
70 | #define CTRL_IO_DUAL_DATA (1 << 29) |
71 | #define CTRL_IO_DUAL_ADDR_DATA (1 << 28) /* Includes dummies */ | |
7c1c69bc CLG |
72 | #define CTRL_CMD_SHIFT 16 |
73 | #define CTRL_CMD_MASK 0xff | |
ac2810de | 74 | #define CTRL_DUMMY_HIGH_SHIFT 14 |
fcdf2c59 | 75 | #define CTRL_AST2400_SPI_4BYTE (1 << 13) |
ac2810de | 76 | #define CTRL_DUMMY_LOW_SHIFT 6 /* 2 bits [7:6] */ |
7c1c69bc CLG |
77 | #define CTRL_CE_STOP_ACTIVE (1 << 2) |
78 | #define CTRL_CMD_MODE_MASK 0x3 | |
79 | #define CTRL_READMODE 0x0 | |
80 | #define CTRL_FREADMODE 0x1 | |
81 | #define CTRL_WRITEMODE 0x2 | |
82 | #define CTRL_USERMODE 0x3 | |
83 | #define R_CTRL1 (0x14 / 4) | |
84 | #define R_CTRL2 (0x18 / 4) | |
85 | #define R_CTRL3 (0x1C / 4) | |
86 | #define R_CTRL4 (0x20 / 4) | |
87 | ||
88 | /* CEx Segment Address Register */ | |
89 | #define R_SEG_ADDR0 (0x30 / 4) | |
a03cb1da CLG |
90 | #define SEG_END_SHIFT 24 /* 8MB units */ |
91 | #define SEG_END_MASK 0xff | |
7c1c69bc | 92 | #define SEG_START_SHIFT 16 /* address bit [A29-A23] */ |
a03cb1da | 93 | #define SEG_START_MASK 0xff |
7c1c69bc CLG |
94 | #define R_SEG_ADDR1 (0x34 / 4) |
95 | #define R_SEG_ADDR2 (0x38 / 4) | |
96 | #define R_SEG_ADDR3 (0x3C / 4) | |
97 | #define R_SEG_ADDR4 (0x40 / 4) | |
98 | ||
99 | /* Misc Control Register #1 */ | |
100 | #define R_MISC_CTRL1 (0x50 / 4) | |
101 | ||
9149af2a CLG |
102 | /* SPI dummy cycle data */ |
103 | #define R_DUMMY_DATA (0x54 / 4) | |
7c1c69bc CLG |
104 | |
105 | /* DMA Control/Status Register */ | |
106 | #define R_DMA_CTRL (0x80 / 4) | |
107 | #define DMA_CTRL_DELAY_MASK 0xf | |
108 | #define DMA_CTRL_DELAY_SHIFT 8 | |
109 | #define DMA_CTRL_FREQ_MASK 0xf | |
110 | #define DMA_CTRL_FREQ_SHIFT 4 | |
111 | #define DMA_CTRL_MODE (1 << 3) | |
112 | #define DMA_CTRL_CKSUM (1 << 2) | |
113 | #define DMA_CTRL_DIR (1 << 1) | |
114 | #define DMA_CTRL_EN (1 << 0) | |
115 | ||
116 | /* DMA Flash Side Address */ | |
117 | #define R_DMA_FLASH_ADDR (0x84 / 4) | |
118 | ||
119 | /* DMA DRAM Side Address */ | |
120 | #define R_DMA_DRAM_ADDR (0x88 / 4) | |
121 | ||
122 | /* DMA Length Register */ | |
123 | #define R_DMA_LEN (0x8C / 4) | |
124 | ||
125 | /* Checksum Calculation Result */ | |
126 | #define R_DMA_CHECKSUM (0x90 / 4) | |
127 | ||
128 | /* Misc Control Register #2 */ | |
129 | #define R_TIMINGS (0x94 / 4) | |
130 | ||
131 | /* SPI controller registers and bits */ | |
132 | #define R_SPI_CONF (0x00 / 4) | |
133 | #define SPI_CONF_ENABLE_W0 0 | |
134 | #define R_SPI_CTRL0 (0x4 / 4) | |
135 | #define R_SPI_MISC_CTRL (0x10 / 4) | |
136 | #define R_SPI_TIMINGS (0x14 / 4) | |
137 | ||
087b57c9 CLG |
138 | #define ASPEED_SMC_R_SPI_MAX (0x20 / 4) |
139 | #define ASPEED_SMC_R_SMC_MAX (0x20 / 4) | |
140 | ||
dcb83444 CLG |
141 | #define ASPEED_SOC_SMC_FLASH_BASE 0x10000000 |
142 | #define ASPEED_SOC_FMC_FLASH_BASE 0x20000000 | |
143 | #define ASPEED_SOC_SPI_FLASH_BASE 0x30000000 | |
6dc52326 | 144 | #define ASPEED_SOC_SPI2_FLASH_BASE 0x38000000 |
dcb83444 | 145 | |
fcdf2c59 CLG |
146 | /* Flash opcodes. */ |
147 | #define SPI_OP_READ 0x03 /* Read data bytes (low frequency) */ | |
148 | ||
f95c4bff CLG |
149 | #define SNOOP_OFF 0xFF |
150 | #define SNOOP_START 0x0 | |
151 | ||
924ed163 CLG |
152 | /* |
153 | * Default segments mapping addresses and size for each slave per | |
154 | * controller. These can be changed when board is initialized with the | |
a03cb1da | 155 | * Segment Address Registers. |
924ed163 CLG |
156 | */ |
157 | static const AspeedSegments aspeed_segments_legacy[] = { | |
158 | { 0x10000000, 32 * 1024 * 1024 }, | |
159 | }; | |
160 | ||
161 | static const AspeedSegments aspeed_segments_fmc[] = { | |
6dc52326 | 162 | { 0x20000000, 64 * 1024 * 1024 }, /* start address is readonly */ |
924ed163 CLG |
163 | { 0x24000000, 32 * 1024 * 1024 }, |
164 | { 0x26000000, 32 * 1024 * 1024 }, | |
165 | { 0x28000000, 32 * 1024 * 1024 }, | |
166 | { 0x2A000000, 32 * 1024 * 1024 } | |
167 | }; | |
168 | ||
169 | static const AspeedSegments aspeed_segments_spi[] = { | |
170 | { 0x30000000, 64 * 1024 * 1024 }, | |
171 | }; | |
172 | ||
6dc52326 CLG |
173 | static const AspeedSegments aspeed_segments_ast2500_fmc[] = { |
174 | { 0x20000000, 128 * 1024 * 1024 }, /* start address is readonly */ | |
175 | { 0x28000000, 32 * 1024 * 1024 }, | |
176 | { 0x2A000000, 32 * 1024 * 1024 }, | |
177 | }; | |
178 | ||
179 | static const AspeedSegments aspeed_segments_ast2500_spi1[] = { | |
180 | { 0x30000000, 32 * 1024 * 1024 }, /* start address is readonly */ | |
181 | { 0x32000000, 96 * 1024 * 1024 }, /* end address is readonly */ | |
182 | }; | |
183 | ||
184 | static const AspeedSegments aspeed_segments_ast2500_spi2[] = { | |
185 | { 0x38000000, 32 * 1024 * 1024 }, /* start address is readonly */ | |
186 | { 0x3A000000, 96 * 1024 * 1024 }, /* end address is readonly */ | |
187 | }; | |
188 | ||
7c1c69bc | 189 | static const AspeedSMCController controllers[] = { |
d09dc5b7 CLG |
190 | { |
191 | .name = "aspeed.smc.smc", | |
192 | .r_conf = R_CONF, | |
193 | .r_ce_ctrl = R_CE_CTRL, | |
194 | .r_ctrl0 = R_CTRL0, | |
195 | .r_timings = R_TIMINGS, | |
196 | .conf_enable_w0 = CONF_ENABLE_W0, | |
197 | .max_slaves = 5, | |
198 | .segments = aspeed_segments_legacy, | |
199 | .flash_window_base = ASPEED_SOC_SMC_FLASH_BASE, | |
200 | .flash_window_size = 0x6000000, | |
201 | .has_dma = false, | |
087b57c9 | 202 | .nregs = ASPEED_SMC_R_SMC_MAX, |
d09dc5b7 CLG |
203 | }, { |
204 | .name = "aspeed.smc.fmc", | |
205 | .r_conf = R_CONF, | |
206 | .r_ce_ctrl = R_CE_CTRL, | |
207 | .r_ctrl0 = R_CTRL0, | |
208 | .r_timings = R_TIMINGS, | |
209 | .conf_enable_w0 = CONF_ENABLE_W0, | |
210 | .max_slaves = 5, | |
211 | .segments = aspeed_segments_fmc, | |
212 | .flash_window_base = ASPEED_SOC_FMC_FLASH_BASE, | |
213 | .flash_window_size = 0x10000000, | |
214 | .has_dma = true, | |
087b57c9 | 215 | .nregs = ASPEED_SMC_R_MAX, |
d09dc5b7 CLG |
216 | }, { |
217 | .name = "aspeed.smc.spi", | |
218 | .r_conf = R_SPI_CONF, | |
219 | .r_ce_ctrl = 0xff, | |
220 | .r_ctrl0 = R_SPI_CTRL0, | |
221 | .r_timings = R_SPI_TIMINGS, | |
222 | .conf_enable_w0 = SPI_CONF_ENABLE_W0, | |
223 | .max_slaves = 1, | |
224 | .segments = aspeed_segments_spi, | |
225 | .flash_window_base = ASPEED_SOC_SPI_FLASH_BASE, | |
226 | .flash_window_size = 0x10000000, | |
227 | .has_dma = false, | |
087b57c9 | 228 | .nregs = ASPEED_SMC_R_SPI_MAX, |
d09dc5b7 CLG |
229 | }, { |
230 | .name = "aspeed.smc.ast2500-fmc", | |
231 | .r_conf = R_CONF, | |
232 | .r_ce_ctrl = R_CE_CTRL, | |
233 | .r_ctrl0 = R_CTRL0, | |
234 | .r_timings = R_TIMINGS, | |
235 | .conf_enable_w0 = CONF_ENABLE_W0, | |
236 | .max_slaves = 3, | |
237 | .segments = aspeed_segments_ast2500_fmc, | |
238 | .flash_window_base = ASPEED_SOC_FMC_FLASH_BASE, | |
239 | .flash_window_size = 0x10000000, | |
240 | .has_dma = true, | |
087b57c9 | 241 | .nregs = ASPEED_SMC_R_MAX, |
d09dc5b7 CLG |
242 | }, { |
243 | .name = "aspeed.smc.ast2500-spi1", | |
244 | .r_conf = R_CONF, | |
245 | .r_ce_ctrl = R_CE_CTRL, | |
246 | .r_ctrl0 = R_CTRL0, | |
247 | .r_timings = R_TIMINGS, | |
248 | .conf_enable_w0 = CONF_ENABLE_W0, | |
249 | .max_slaves = 2, | |
250 | .segments = aspeed_segments_ast2500_spi1, | |
251 | .flash_window_base = ASPEED_SOC_SPI_FLASH_BASE, | |
252 | .flash_window_size = 0x8000000, | |
253 | .has_dma = false, | |
087b57c9 | 254 | .nregs = ASPEED_SMC_R_MAX, |
d09dc5b7 CLG |
255 | }, { |
256 | .name = "aspeed.smc.ast2500-spi2", | |
257 | .r_conf = R_CONF, | |
258 | .r_ce_ctrl = R_CE_CTRL, | |
259 | .r_ctrl0 = R_CTRL0, | |
260 | .r_timings = R_TIMINGS, | |
261 | .conf_enable_w0 = CONF_ENABLE_W0, | |
262 | .max_slaves = 2, | |
263 | .segments = aspeed_segments_ast2500_spi2, | |
264 | .flash_window_base = ASPEED_SOC_SPI2_FLASH_BASE, | |
265 | .flash_window_size = 0x8000000, | |
266 | .has_dma = false, | |
087b57c9 | 267 | .nregs = ASPEED_SMC_R_MAX, |
d09dc5b7 | 268 | }, |
924ed163 CLG |
269 | }; |
270 | ||
a03cb1da CLG |
271 | /* |
272 | * The Segment Register uses a 8MB unit to encode the start address | |
273 | * and the end address of the mapping window of a flash SPI slave : | |
274 | * | |
275 | * | byte 1 | byte 2 | byte 3 | byte 4 | | |
276 | * +--------+--------+--------+--------+ | |
277 | * | end | start | 0 | 0 | | |
278 | * | |
279 | */ | |
280 | static inline uint32_t aspeed_smc_segment_to_reg(const AspeedSegments *seg) | |
281 | { | |
282 | uint32_t reg = 0; | |
283 | reg |= ((seg->addr >> 23) & SEG_START_MASK) << SEG_START_SHIFT; | |
284 | reg |= (((seg->addr + seg->size) >> 23) & SEG_END_MASK) << SEG_END_SHIFT; | |
285 | return reg; | |
286 | } | |
287 | ||
288 | static inline void aspeed_smc_reg_to_segment(uint32_t reg, AspeedSegments *seg) | |
289 | { | |
290 | seg->addr = ((reg >> SEG_START_SHIFT) & SEG_START_MASK) << 23; | |
291 | seg->size = (((reg >> SEG_END_SHIFT) & SEG_END_MASK) << 23) - seg->addr; | |
292 | } | |
293 | ||
294 | static bool aspeed_smc_flash_overlap(const AspeedSMCState *s, | |
295 | const AspeedSegments *new, | |
296 | int cs) | |
297 | { | |
298 | AspeedSegments seg; | |
299 | int i; | |
300 | ||
301 | for (i = 0; i < s->ctrl->max_slaves; i++) { | |
302 | if (i == cs) { | |
303 | continue; | |
304 | } | |
305 | ||
306 | aspeed_smc_reg_to_segment(s->regs[R_SEG_ADDR0 + i], &seg); | |
307 | ||
308 | if (new->addr + new->size > seg.addr && | |
309 | new->addr < seg.addr + seg.size) { | |
310 | qemu_log_mask(LOG_GUEST_ERROR, "%s: new segment CS%d [ 0x%" | |
311 | HWADDR_PRIx" - 0x%"HWADDR_PRIx" ] overlaps with " | |
312 | "CS%d [ 0x%"HWADDR_PRIx" - 0x%"HWADDR_PRIx" ]\n", | |
313 | s->ctrl->name, cs, new->addr, new->addr + new->size, | |
314 | i, seg.addr, seg.addr + seg.size); | |
315 | return true; | |
316 | } | |
317 | } | |
318 | return false; | |
319 | } | |
320 | ||
321 | static void aspeed_smc_flash_set_segment(AspeedSMCState *s, int cs, | |
322 | uint64_t new) | |
323 | { | |
324 | AspeedSMCFlash *fl = &s->flashes[cs]; | |
325 | AspeedSegments seg; | |
326 | ||
327 | aspeed_smc_reg_to_segment(new, &seg); | |
328 | ||
329 | /* The start address of CS0 is read-only */ | |
330 | if (cs == 0 && seg.addr != s->ctrl->flash_window_base) { | |
331 | qemu_log_mask(LOG_GUEST_ERROR, | |
332 | "%s: Tried to change CS0 start address to 0x%" | |
333 | HWADDR_PRIx "\n", s->ctrl->name, seg.addr); | |
0584d3c3 CLG |
334 | seg.addr = s->ctrl->flash_window_base; |
335 | new = aspeed_smc_segment_to_reg(&seg); | |
a03cb1da CLG |
336 | } |
337 | ||
338 | /* | |
339 | * The end address of the AST2500 spi controllers is also | |
340 | * read-only. | |
341 | */ | |
342 | if ((s->ctrl->segments == aspeed_segments_ast2500_spi1 || | |
343 | s->ctrl->segments == aspeed_segments_ast2500_spi2) && | |
344 | cs == s->ctrl->max_slaves && | |
345 | seg.addr + seg.size != s->ctrl->segments[cs].addr + | |
346 | s->ctrl->segments[cs].size) { | |
347 | qemu_log_mask(LOG_GUEST_ERROR, | |
348 | "%s: Tried to change CS%d end address to 0x%" | |
0584d3c3 CLG |
349 | HWADDR_PRIx "\n", s->ctrl->name, cs, seg.addr + seg.size); |
350 | seg.size = s->ctrl->segments[cs].addr + s->ctrl->segments[cs].size - | |
351 | seg.addr; | |
352 | new = aspeed_smc_segment_to_reg(&seg); | |
a03cb1da CLG |
353 | } |
354 | ||
355 | /* Keep the segment in the overall flash window */ | |
356 | if (seg.addr + seg.size <= s->ctrl->flash_window_base || | |
357 | seg.addr > s->ctrl->flash_window_base + s->ctrl->flash_window_size) { | |
358 | qemu_log_mask(LOG_GUEST_ERROR, "%s: new segment for CS%d is invalid : " | |
359 | "[ 0x%"HWADDR_PRIx" - 0x%"HWADDR_PRIx" ]\n", | |
360 | s->ctrl->name, cs, seg.addr, seg.addr + seg.size); | |
361 | return; | |
362 | } | |
363 | ||
364 | /* Check start address vs. alignment */ | |
0584d3c3 | 365 | if (seg.size && !QEMU_IS_ALIGNED(seg.addr, seg.size)) { |
a03cb1da CLG |
366 | qemu_log_mask(LOG_GUEST_ERROR, "%s: new segment for CS%d is not " |
367 | "aligned : [ 0x%"HWADDR_PRIx" - 0x%"HWADDR_PRIx" ]\n", | |
368 | s->ctrl->name, cs, seg.addr, seg.addr + seg.size); | |
369 | } | |
370 | ||
0584d3c3 CLG |
371 | /* And segments should not overlap (in the specs) */ |
372 | aspeed_smc_flash_overlap(s, &seg, cs); | |
a03cb1da CLG |
373 | |
374 | /* All should be fine now to move the region */ | |
375 | memory_region_transaction_begin(); | |
376 | memory_region_set_size(&fl->mmio, seg.size); | |
377 | memory_region_set_address(&fl->mmio, seg.addr - s->ctrl->flash_window_base); | |
378 | memory_region_set_enabled(&fl->mmio, true); | |
379 | memory_region_transaction_commit(); | |
380 | ||
381 | s->regs[R_SEG_ADDR0 + cs] = new; | |
382 | } | |
383 | ||
924ed163 CLG |
384 | static uint64_t aspeed_smc_flash_default_read(void *opaque, hwaddr addr, |
385 | unsigned size) | |
386 | { | |
387 | qemu_log_mask(LOG_GUEST_ERROR, "%s: To 0x%" HWADDR_PRIx " of size %u" | |
388 | PRIx64 "\n", __func__, addr, size); | |
389 | return 0; | |
390 | } | |
391 | ||
392 | static void aspeed_smc_flash_default_write(void *opaque, hwaddr addr, | |
393 | uint64_t data, unsigned size) | |
394 | { | |
b3d6b8f5 CLG |
395 | qemu_log_mask(LOG_GUEST_ERROR, "%s: To 0x%" HWADDR_PRIx " of size %u: 0x%" |
396 | PRIx64 "\n", __func__, addr, size, data); | |
924ed163 CLG |
397 | } |
398 | ||
399 | static const MemoryRegionOps aspeed_smc_flash_default_ops = { | |
400 | .read = aspeed_smc_flash_default_read, | |
401 | .write = aspeed_smc_flash_default_write, | |
402 | .endianness = DEVICE_LITTLE_ENDIAN, | |
403 | .valid = { | |
404 | .min_access_size = 1, | |
405 | .max_access_size = 4, | |
406 | }, | |
407 | }; | |
408 | ||
f248a9db | 409 | static inline int aspeed_smc_flash_mode(const AspeedSMCFlash *fl) |
924ed163 | 410 | { |
f248a9db CLG |
411 | const AspeedSMCState *s = fl->controller; |
412 | ||
413 | return s->regs[s->r_ctrl0 + fl->id] & CTRL_CMD_MODE_MASK; | |
924ed163 CLG |
414 | } |
415 | ||
fcdf2c59 | 416 | static inline bool aspeed_smc_is_writable(const AspeedSMCFlash *fl) |
924ed163 | 417 | { |
fcdf2c59 CLG |
418 | const AspeedSMCState *s = fl->controller; |
419 | ||
420 | return s->regs[s->r_conf] & (1 << (s->conf_enable_w0 + fl->id)); | |
924ed163 CLG |
421 | } |
422 | ||
fcdf2c59 | 423 | static inline int aspeed_smc_flash_cmd(const AspeedSMCFlash *fl) |
924ed163 | 424 | { |
f248a9db | 425 | const AspeedSMCState *s = fl->controller; |
fcdf2c59 | 426 | int cmd = (s->regs[s->r_ctrl0 + fl->id] >> CTRL_CMD_SHIFT) & CTRL_CMD_MASK; |
f248a9db | 427 | |
fcdf2c59 CLG |
428 | /* In read mode, the default SPI command is READ (0x3). In other |
429 | * modes, the command should necessarily be defined */ | |
430 | if (aspeed_smc_flash_mode(fl) == CTRL_READMODE) { | |
431 | cmd = SPI_OP_READ; | |
432 | } | |
433 | ||
434 | if (!cmd) { | |
435 | qemu_log_mask(LOG_GUEST_ERROR, "%s: no command defined for mode %d\n", | |
436 | __func__, aspeed_smc_flash_mode(fl)); | |
437 | } | |
438 | ||
439 | return cmd; | |
440 | } | |
441 | ||
442 | static inline int aspeed_smc_flash_is_4byte(const AspeedSMCFlash *fl) | |
443 | { | |
444 | const AspeedSMCState *s = fl->controller; | |
445 | ||
446 | if (s->ctrl->segments == aspeed_segments_spi) { | |
447 | return s->regs[s->r_ctrl0] & CTRL_AST2400_SPI_4BYTE; | |
448 | } else { | |
449 | return s->regs[s->r_ce_ctrl] & (1 << (CTRL_EXTENDED0 + fl->id)); | |
450 | } | |
451 | } | |
452 | ||
453 | static inline bool aspeed_smc_is_ce_stop_active(const AspeedSMCFlash *fl) | |
454 | { | |
455 | const AspeedSMCState *s = fl->controller; | |
456 | ||
457 | return s->regs[s->r_ctrl0 + fl->id] & CTRL_CE_STOP_ACTIVE; | |
458 | } | |
459 | ||
460 | static void aspeed_smc_flash_select(AspeedSMCFlash *fl) | |
461 | { | |
462 | AspeedSMCState *s = fl->controller; | |
463 | ||
464 | s->regs[s->r_ctrl0 + fl->id] &= ~CTRL_CE_STOP_ACTIVE; | |
465 | qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl)); | |
466 | } | |
467 | ||
468 | static void aspeed_smc_flash_unselect(AspeedSMCFlash *fl) | |
469 | { | |
470 | AspeedSMCState *s = fl->controller; | |
471 | ||
472 | s->regs[s->r_ctrl0 + fl->id] |= CTRL_CE_STOP_ACTIVE; | |
473 | qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl)); | |
474 | } | |
475 | ||
476 | static uint32_t aspeed_smc_check_segment_addr(const AspeedSMCFlash *fl, | |
477 | uint32_t addr) | |
478 | { | |
479 | const AspeedSMCState *s = fl->controller; | |
480 | AspeedSegments seg; | |
481 | ||
482 | aspeed_smc_reg_to_segment(s->regs[R_SEG_ADDR0 + fl->id], &seg); | |
b4cc583f | 483 | if ((addr % seg.size) != addr) { |
fcdf2c59 CLG |
484 | qemu_log_mask(LOG_GUEST_ERROR, |
485 | "%s: invalid address 0x%08x for CS%d segment : " | |
486 | "[ 0x%"HWADDR_PRIx" - 0x%"HWADDR_PRIx" ]\n", | |
487 | s->ctrl->name, addr, fl->id, seg.addr, | |
488 | seg.addr + seg.size); | |
b4cc583f | 489 | addr %= seg.size; |
fcdf2c59 CLG |
490 | } |
491 | ||
fcdf2c59 CLG |
492 | return addr; |
493 | } | |
494 | ||
ac2810de CLG |
495 | static int aspeed_smc_flash_dummies(const AspeedSMCFlash *fl) |
496 | { | |
497 | const AspeedSMCState *s = fl->controller; | |
498 | uint32_t r_ctrl0 = s->regs[s->r_ctrl0 + fl->id]; | |
499 | uint32_t dummy_high = (r_ctrl0 >> CTRL_DUMMY_HIGH_SHIFT) & 0x1; | |
500 | uint32_t dummy_low = (r_ctrl0 >> CTRL_DUMMY_LOW_SHIFT) & 0x3; | |
0721309e | 501 | uint32_t dummies = ((dummy_high << 2) | dummy_low) * 8; |
ac2810de | 502 | |
0721309e CLG |
503 | if (r_ctrl0 & CTRL_IO_DUAL_ADDR_DATA) { |
504 | dummies /= 2; | |
505 | } | |
506 | ||
507 | return dummies; | |
ac2810de CLG |
508 | } |
509 | ||
96c4be95 | 510 | static void aspeed_smc_flash_setup(AspeedSMCFlash *fl, uint32_t addr) |
fcdf2c59 CLG |
511 | { |
512 | const AspeedSMCState *s = fl->controller; | |
513 | uint8_t cmd = aspeed_smc_flash_cmd(fl); | |
96c4be95 | 514 | int i; |
fcdf2c59 CLG |
515 | |
516 | /* Flash access can not exceed CS segment */ | |
517 | addr = aspeed_smc_check_segment_addr(fl, addr); | |
518 | ||
519 | ssi_transfer(s->spi, cmd); | |
520 | ||
521 | if (aspeed_smc_flash_is_4byte(fl)) { | |
522 | ssi_transfer(s->spi, (addr >> 24) & 0xff); | |
523 | } | |
524 | ssi_transfer(s->spi, (addr >> 16) & 0xff); | |
525 | ssi_transfer(s->spi, (addr >> 8) & 0xff); | |
526 | ssi_transfer(s->spi, (addr & 0xff)); | |
96c4be95 CLG |
527 | |
528 | /* | |
529 | * Use fake transfers to model dummy bytes. The value should | |
530 | * be configured to some non-zero value in fast read mode and | |
531 | * zero in read mode. But, as the HW allows inconsistent | |
532 | * settings, let's check for fast read mode. | |
533 | */ | |
534 | if (aspeed_smc_flash_mode(fl) == CTRL_FREADMODE) { | |
535 | for (i = 0; i < aspeed_smc_flash_dummies(fl); i++) { | |
9149af2a | 536 | ssi_transfer(fl->controller->spi, s->regs[R_DUMMY_DATA] & 0xff); |
96c4be95 CLG |
537 | } |
538 | } | |
924ed163 CLG |
539 | } |
540 | ||
541 | static uint64_t aspeed_smc_flash_read(void *opaque, hwaddr addr, unsigned size) | |
542 | { | |
543 | AspeedSMCFlash *fl = opaque; | |
fcdf2c59 | 544 | AspeedSMCState *s = fl->controller; |
924ed163 CLG |
545 | uint64_t ret = 0; |
546 | int i; | |
547 | ||
fcdf2c59 CLG |
548 | switch (aspeed_smc_flash_mode(fl)) { |
549 | case CTRL_USERMODE: | |
924ed163 CLG |
550 | for (i = 0; i < size; i++) { |
551 | ret |= ssi_transfer(s->spi, 0x0) << (8 * i); | |
552 | } | |
fcdf2c59 CLG |
553 | break; |
554 | case CTRL_READMODE: | |
555 | case CTRL_FREADMODE: | |
556 | aspeed_smc_flash_select(fl); | |
96c4be95 | 557 | aspeed_smc_flash_setup(fl, addr); |
ac2810de | 558 | |
fcdf2c59 CLG |
559 | for (i = 0; i < size; i++) { |
560 | ret |= ssi_transfer(s->spi, 0x0) << (8 * i); | |
561 | } | |
562 | ||
563 | aspeed_smc_flash_unselect(fl); | |
564 | break; | |
565 | default: | |
566 | qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid flash mode %d\n", | |
567 | __func__, aspeed_smc_flash_mode(fl)); | |
924ed163 CLG |
568 | } |
569 | ||
570 | return ret; | |
571 | } | |
572 | ||
f95c4bff CLG |
573 | /* |
574 | * TODO (clg@kaod.org): stolen from xilinx_spips.c. Should move to a | |
575 | * common include header. | |
576 | */ | |
577 | typedef enum { | |
578 | READ = 0x3, READ_4 = 0x13, | |
579 | FAST_READ = 0xb, FAST_READ_4 = 0x0c, | |
580 | DOR = 0x3b, DOR_4 = 0x3c, | |
581 | QOR = 0x6b, QOR_4 = 0x6c, | |
582 | DIOR = 0xbb, DIOR_4 = 0xbc, | |
583 | QIOR = 0xeb, QIOR_4 = 0xec, | |
584 | ||
585 | PP = 0x2, PP_4 = 0x12, | |
586 | DPP = 0xa2, | |
587 | QPP = 0x32, QPP_4 = 0x34, | |
588 | } FlashCMD; | |
589 | ||
590 | static int aspeed_smc_num_dummies(uint8_t command) | |
591 | { | |
592 | switch (command) { /* check for dummies */ | |
593 | case READ: /* no dummy bytes/cycles */ | |
594 | case PP: | |
595 | case DPP: | |
596 | case QPP: | |
597 | case READ_4: | |
598 | case PP_4: | |
599 | case QPP_4: | |
600 | return 0; | |
601 | case FAST_READ: | |
602 | case DOR: | |
603 | case QOR: | |
604 | case DOR_4: | |
605 | case QOR_4: | |
606 | return 1; | |
607 | case DIOR: | |
608 | case FAST_READ_4: | |
609 | case DIOR_4: | |
610 | return 2; | |
611 | case QIOR: | |
612 | case QIOR_4: | |
613 | return 4; | |
614 | default: | |
615 | return -1; | |
616 | } | |
617 | } | |
618 | ||
619 | static bool aspeed_smc_do_snoop(AspeedSMCFlash *fl, uint64_t data, | |
620 | unsigned size) | |
621 | { | |
622 | AspeedSMCState *s = fl->controller; | |
623 | uint8_t addr_width = aspeed_smc_flash_is_4byte(fl) ? 4 : 3; | |
624 | ||
625 | if (s->snoop_index == SNOOP_OFF) { | |
626 | return false; /* Do nothing */ | |
627 | ||
628 | } else if (s->snoop_index == SNOOP_START) { | |
629 | uint8_t cmd = data & 0xff; | |
630 | int ndummies = aspeed_smc_num_dummies(cmd); | |
631 | ||
632 | /* | |
633 | * No dummy cycles are expected with the current command. Turn | |
634 | * off snooping and let the transfer proceed normally. | |
635 | */ | |
636 | if (ndummies <= 0) { | |
637 | s->snoop_index = SNOOP_OFF; | |
638 | return false; | |
639 | } | |
640 | ||
641 | s->snoop_dummies = ndummies * 8; | |
642 | ||
643 | } else if (s->snoop_index >= addr_width + 1) { | |
644 | ||
645 | /* The SPI transfer has reached the dummy cycles sequence */ | |
646 | for (; s->snoop_dummies; s->snoop_dummies--) { | |
647 | ssi_transfer(s->spi, s->regs[R_DUMMY_DATA] & 0xff); | |
648 | } | |
649 | ||
650 | /* If no more dummy cycles are expected, turn off snooping */ | |
651 | if (!s->snoop_dummies) { | |
652 | s->snoop_index = SNOOP_OFF; | |
653 | } else { | |
654 | s->snoop_index += size; | |
655 | } | |
656 | ||
657 | /* | |
658 | * Dummy cycles have been faked already. Ignore the current | |
659 | * SPI transfer | |
660 | */ | |
661 | return true; | |
662 | } | |
663 | ||
664 | s->snoop_index += size; | |
665 | return false; | |
666 | } | |
667 | ||
924ed163 | 668 | static void aspeed_smc_flash_write(void *opaque, hwaddr addr, uint64_t data, |
b3d6b8f5 | 669 | unsigned size) |
924ed163 CLG |
670 | { |
671 | AspeedSMCFlash *fl = opaque; | |
fcdf2c59 | 672 | AspeedSMCState *s = fl->controller; |
924ed163 CLG |
673 | int i; |
674 | ||
f248a9db | 675 | if (!aspeed_smc_is_writable(fl)) { |
924ed163 CLG |
676 | qemu_log_mask(LOG_GUEST_ERROR, "%s: flash is not writable at 0x%" |
677 | HWADDR_PRIx "\n", __func__, addr); | |
678 | return; | |
679 | } | |
680 | ||
fcdf2c59 CLG |
681 | switch (aspeed_smc_flash_mode(fl)) { |
682 | case CTRL_USERMODE: | |
f95c4bff CLG |
683 | if (aspeed_smc_do_snoop(fl, data, size)) { |
684 | break; | |
685 | } | |
686 | ||
fcdf2c59 CLG |
687 | for (i = 0; i < size; i++) { |
688 | ssi_transfer(s->spi, (data >> (8 * i)) & 0xff); | |
689 | } | |
690 | break; | |
691 | case CTRL_WRITEMODE: | |
692 | aspeed_smc_flash_select(fl); | |
96c4be95 | 693 | aspeed_smc_flash_setup(fl, addr); |
fcdf2c59 CLG |
694 | |
695 | for (i = 0; i < size; i++) { | |
696 | ssi_transfer(s->spi, (data >> (8 * i)) & 0xff); | |
697 | } | |
924ed163 | 698 | |
fcdf2c59 CLG |
699 | aspeed_smc_flash_unselect(fl); |
700 | break; | |
701 | default: | |
702 | qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid flash mode %d\n", | |
703 | __func__, aspeed_smc_flash_mode(fl)); | |
924ed163 CLG |
704 | } |
705 | } | |
706 | ||
707 | static const MemoryRegionOps aspeed_smc_flash_ops = { | |
708 | .read = aspeed_smc_flash_read, | |
709 | .write = aspeed_smc_flash_write, | |
710 | .endianness = DEVICE_LITTLE_ENDIAN, | |
711 | .valid = { | |
712 | .min_access_size = 1, | |
713 | .max_access_size = 4, | |
714 | }, | |
7c1c69bc CLG |
715 | }; |
716 | ||
f248a9db | 717 | static void aspeed_smc_flash_update_cs(AspeedSMCFlash *fl) |
7c1c69bc | 718 | { |
f95c4bff CLG |
719 | AspeedSMCState *s = fl->controller; |
720 | ||
721 | s->snoop_index = aspeed_smc_is_ce_stop_active(fl) ? SNOOP_OFF : SNOOP_START; | |
7c1c69bc | 722 | |
f248a9db | 723 | qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl)); |
7c1c69bc CLG |
724 | } |
725 | ||
726 | static void aspeed_smc_reset(DeviceState *d) | |
727 | { | |
728 | AspeedSMCState *s = ASPEED_SMC(d); | |
729 | int i; | |
730 | ||
731 | memset(s->regs, 0, sizeof s->regs); | |
732 | ||
2e1f0502 CLG |
733 | /* Pretend DMA is done (u-boot initialization) */ |
734 | s->regs[R_INTR_CTRL] = INTR_CTRL_DMA_STATUS; | |
735 | ||
7c1c69bc CLG |
736 | /* Unselect all slaves */ |
737 | for (i = 0; i < s->num_cs; ++i) { | |
738 | s->regs[s->r_ctrl0 + i] |= CTRL_CE_STOP_ACTIVE; | |
1d247bd0 | 739 | qemu_set_irq(s->cs_lines[i], true); |
7c1c69bc CLG |
740 | } |
741 | ||
a03cb1da CLG |
742 | /* setup default segment register values for all */ |
743 | for (i = 0; i < s->ctrl->max_slaves; ++i) { | |
744 | s->regs[R_SEG_ADDR0 + i] = | |
745 | aspeed_smc_segment_to_reg(&s->ctrl->segments[i]); | |
746 | } | |
0707b34d | 747 | |
a57baeb4 | 748 | /* HW strapping flash type for FMC controllers */ |
0707b34d CLG |
749 | if (s->ctrl->segments == aspeed_segments_ast2500_fmc) { |
750 | /* flash type is fixed to SPI for CE0 and CE1 */ | |
751 | s->regs[s->r_conf] |= (CONF_FLASH_TYPE_SPI << CONF_FLASH_TYPE0); | |
752 | s->regs[s->r_conf] |= (CONF_FLASH_TYPE_SPI << CONF_FLASH_TYPE1); | |
0707b34d CLG |
753 | } |
754 | ||
755 | /* HW strapping for AST2400 FMC controllers (SCU70). Let's use the | |
756 | * configuration of the palmetto-bmc machine */ | |
757 | if (s->ctrl->segments == aspeed_segments_fmc) { | |
758 | s->regs[s->r_conf] |= (CONF_FLASH_TYPE_SPI << CONF_FLASH_TYPE0); | |
0707b34d | 759 | } |
f95c4bff CLG |
760 | |
761 | s->snoop_index = SNOOP_OFF; | |
762 | s->snoop_dummies = 0; | |
7c1c69bc CLG |
763 | } |
764 | ||
7c1c69bc CLG |
765 | static uint64_t aspeed_smc_read(void *opaque, hwaddr addr, unsigned int size) |
766 | { | |
767 | AspeedSMCState *s = ASPEED_SMC(opaque); | |
768 | ||
769 | addr >>= 2; | |
770 | ||
97c2ed5d CLG |
771 | if (addr == s->r_conf || |
772 | addr == s->r_timings || | |
773 | addr == s->r_ce_ctrl || | |
2e1f0502 | 774 | addr == R_INTR_CTRL || |
9149af2a | 775 | addr == R_DUMMY_DATA || |
a03cb1da | 776 | (addr >= R_SEG_ADDR0 && addr < R_SEG_ADDR0 + s->ctrl->max_slaves) || |
597d6bb3 | 777 | (addr >= s->r_ctrl0 && addr < s->r_ctrl0 + s->ctrl->max_slaves)) { |
97c2ed5d CLG |
778 | return s->regs[addr]; |
779 | } else { | |
7c1c69bc | 780 | qemu_log_mask(LOG_UNIMP, "%s: not implemented: 0x%" HWADDR_PRIx "\n", |
97c2ed5d | 781 | __func__, addr); |
b617ca92 | 782 | return -1; |
7c1c69bc | 783 | } |
7c1c69bc CLG |
784 | } |
785 | ||
786 | static void aspeed_smc_write(void *opaque, hwaddr addr, uint64_t data, | |
787 | unsigned int size) | |
788 | { | |
789 | AspeedSMCState *s = ASPEED_SMC(opaque); | |
790 | uint32_t value = data; | |
791 | ||
792 | addr >>= 2; | |
793 | ||
97c2ed5d CLG |
794 | if (addr == s->r_conf || |
795 | addr == s->r_timings || | |
796 | addr == s->r_ce_ctrl) { | |
797 | s->regs[addr] = value; | |
798 | } else if (addr >= s->r_ctrl0 && addr < s->r_ctrl0 + s->num_cs) { | |
f248a9db | 799 | int cs = addr - s->r_ctrl0; |
97c2ed5d | 800 | s->regs[addr] = value; |
f248a9db | 801 | aspeed_smc_flash_update_cs(&s->flashes[cs]); |
a03cb1da CLG |
802 | } else if (addr >= R_SEG_ADDR0 && |
803 | addr < R_SEG_ADDR0 + s->ctrl->max_slaves) { | |
804 | int cs = addr - R_SEG_ADDR0; | |
805 | ||
806 | if (value != s->regs[R_SEG_ADDR0 + cs]) { | |
807 | aspeed_smc_flash_set_segment(s, cs, value); | |
808 | } | |
9149af2a CLG |
809 | } else if (addr == R_DUMMY_DATA) { |
810 | s->regs[addr] = value & 0xff; | |
97c2ed5d | 811 | } else { |
7c1c69bc CLG |
812 | qemu_log_mask(LOG_UNIMP, "%s: not implemented: 0x%" HWADDR_PRIx "\n", |
813 | __func__, addr); | |
814 | return; | |
815 | } | |
7c1c69bc CLG |
816 | } |
817 | ||
818 | static const MemoryRegionOps aspeed_smc_ops = { | |
819 | .read = aspeed_smc_read, | |
820 | .write = aspeed_smc_write, | |
821 | .endianness = DEVICE_LITTLE_ENDIAN, | |
822 | .valid.unaligned = true, | |
823 | }; | |
824 | ||
825 | static void aspeed_smc_realize(DeviceState *dev, Error **errp) | |
826 | { | |
827 | SysBusDevice *sbd = SYS_BUS_DEVICE(dev); | |
828 | AspeedSMCState *s = ASPEED_SMC(dev); | |
829 | AspeedSMCClass *mc = ASPEED_SMC_GET_CLASS(s); | |
830 | int i; | |
924ed163 CLG |
831 | char name[32]; |
832 | hwaddr offset = 0; | |
7c1c69bc CLG |
833 | |
834 | s->ctrl = mc->ctrl; | |
835 | ||
836 | /* keep a copy under AspeedSMCState to speed up accesses */ | |
837 | s->r_conf = s->ctrl->r_conf; | |
838 | s->r_ce_ctrl = s->ctrl->r_ce_ctrl; | |
839 | s->r_ctrl0 = s->ctrl->r_ctrl0; | |
840 | s->r_timings = s->ctrl->r_timings; | |
841 | s->conf_enable_w0 = s->ctrl->conf_enable_w0; | |
842 | ||
843 | /* Enforce some real HW limits */ | |
844 | if (s->num_cs > s->ctrl->max_slaves) { | |
845 | qemu_log_mask(LOG_GUEST_ERROR, "%s: num_cs cannot exceed: %d\n", | |
846 | __func__, s->ctrl->max_slaves); | |
847 | s->num_cs = s->ctrl->max_slaves; | |
848 | } | |
849 | ||
850 | s->spi = ssi_create_bus(dev, "spi"); | |
851 | ||
852 | /* Setup cs_lines for slaves */ | |
853 | sysbus_init_irq(sbd, &s->irq); | |
854 | s->cs_lines = g_new0(qemu_irq, s->num_cs); | |
855 | ssi_auto_connect_slaves(dev, s->cs_lines, s->spi); | |
856 | ||
857 | for (i = 0; i < s->num_cs; ++i) { | |
858 | sysbus_init_irq(sbd, &s->cs_lines[i]); | |
859 | } | |
860 | ||
2da95fd8 | 861 | /* The memory region for the controller registers */ |
7c1c69bc | 862 | memory_region_init_io(&s->mmio, OBJECT(s), &aspeed_smc_ops, s, |
087b57c9 | 863 | s->ctrl->name, s->ctrl->nregs * 4); |
7c1c69bc | 864 | sysbus_init_mmio(sbd, &s->mmio); |
924ed163 CLG |
865 | |
866 | /* | |
2da95fd8 CLG |
867 | * The container memory region representing the address space |
868 | * window in which the flash modules are mapped. The size and | |
869 | * address depends on the SoC model and controller type. | |
924ed163 CLG |
870 | */ |
871 | snprintf(name, sizeof(name), "%s.flash", s->ctrl->name); | |
872 | ||
873 | memory_region_init_io(&s->mmio_flash, OBJECT(s), | |
874 | &aspeed_smc_flash_default_ops, s, name, | |
dcb83444 | 875 | s->ctrl->flash_window_size); |
924ed163 CLG |
876 | sysbus_init_mmio(sbd, &s->mmio_flash); |
877 | ||
2da95fd8 | 878 | s->flashes = g_new0(AspeedSMCFlash, s->ctrl->max_slaves); |
924ed163 | 879 | |
2da95fd8 CLG |
880 | /* |
881 | * Let's create a sub memory region for each possible slave. All | |
882 | * have a configurable memory segment in the overall flash mapping | |
883 | * window of the controller but, there is not necessarily a flash | |
884 | * module behind to handle the memory accesses. This depends on | |
885 | * the board configuration. | |
886 | */ | |
887 | for (i = 0; i < s->ctrl->max_slaves; ++i) { | |
924ed163 CLG |
888 | AspeedSMCFlash *fl = &s->flashes[i]; |
889 | ||
890 | snprintf(name, sizeof(name), "%s.%d", s->ctrl->name, i); | |
891 | ||
892 | fl->id = i; | |
893 | fl->controller = s; | |
894 | fl->size = s->ctrl->segments[i].size; | |
895 | memory_region_init_io(&fl->mmio, OBJECT(s), &aspeed_smc_flash_ops, | |
896 | fl, name, fl->size); | |
897 | memory_region_add_subregion(&s->mmio_flash, offset, &fl->mmio); | |
898 | offset += fl->size; | |
899 | } | |
7c1c69bc CLG |
900 | } |
901 | ||
902 | static const VMStateDescription vmstate_aspeed_smc = { | |
903 | .name = "aspeed.smc", | |
f95c4bff CLG |
904 | .version_id = 2, |
905 | .minimum_version_id = 2, | |
7c1c69bc CLG |
906 | .fields = (VMStateField[]) { |
907 | VMSTATE_UINT32_ARRAY(regs, AspeedSMCState, ASPEED_SMC_R_MAX), | |
f95c4bff CLG |
908 | VMSTATE_UINT8(snoop_index, AspeedSMCState), |
909 | VMSTATE_UINT8(snoop_dummies, AspeedSMCState), | |
7c1c69bc CLG |
910 | VMSTATE_END_OF_LIST() |
911 | } | |
912 | }; | |
913 | ||
914 | static Property aspeed_smc_properties[] = { | |
915 | DEFINE_PROP_UINT32("num-cs", AspeedSMCState, num_cs, 1), | |
916 | DEFINE_PROP_END_OF_LIST(), | |
917 | }; | |
918 | ||
919 | static void aspeed_smc_class_init(ObjectClass *klass, void *data) | |
920 | { | |
921 | DeviceClass *dc = DEVICE_CLASS(klass); | |
922 | AspeedSMCClass *mc = ASPEED_SMC_CLASS(klass); | |
923 | ||
924 | dc->realize = aspeed_smc_realize; | |
925 | dc->reset = aspeed_smc_reset; | |
926 | dc->props = aspeed_smc_properties; | |
927 | dc->vmsd = &vmstate_aspeed_smc; | |
928 | mc->ctrl = data; | |
929 | } | |
930 | ||
931 | static const TypeInfo aspeed_smc_info = { | |
932 | .name = TYPE_ASPEED_SMC, | |
933 | .parent = TYPE_SYS_BUS_DEVICE, | |
934 | .instance_size = sizeof(AspeedSMCState), | |
935 | .class_size = sizeof(AspeedSMCClass), | |
936 | .abstract = true, | |
937 | }; | |
938 | ||
939 | static void aspeed_smc_register_types(void) | |
940 | { | |
941 | int i; | |
942 | ||
943 | type_register_static(&aspeed_smc_info); | |
944 | for (i = 0; i < ARRAY_SIZE(controllers); ++i) { | |
945 | TypeInfo ti = { | |
946 | .name = controllers[i].name, | |
947 | .parent = TYPE_ASPEED_SMC, | |
948 | .class_init = aspeed_smc_class_init, | |
949 | .class_data = (void *)&controllers[i], | |
950 | }; | |
951 | type_register(&ti); | |
952 | } | |
953 | } | |
954 | ||
955 | type_init(aspeed_smc_register_types) |