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Merge tag 'imx-fixes-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo...
[deliverable/linux.git] / sound / soc / intel / haswell / sst-haswell-dsp.c
CommitLineData
a4b12990
MB		 1/*
2 * Intel Haswell SST DSP driver
3 *
4 * Copyright (C) 2013, Intel Corporation. All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 */
16
17#include <linux/delay.h>
18#include <linux/fs.h>
19#include <linux/slab.h>
20#include <linux/device.h>
21#include <linux/sched.h>
22#include <linux/export.h>
23#include <linux/interrupt.h>
24#include <linux/module.h>
25#include <linux/dma-mapping.h>
26#include <linux/platform_device.h>
27#include <linux/pci.h>
28#include <linux/firmware.h>
29#include <linux/pm_runtime.h>
30
ba57f682
JY		 31#include "../common/sst-dsp.h"
32#include "../common/sst-dsp-priv.h"
33#include "../haswell/sst-haswell-ipc.h"
a4b12990
MB		 34
35#include <trace/events/hswadsp.h>
36
37#define SST_HSW_FW_SIGNATURE_SIZE 4
38#define SST_HSW_FW_SIGN "$SST"
39#define SST_HSW_FW_LIB_SIGN "$LIB"
40
41#define SST_WPT_SHIM_OFFSET 0xFB000
42#define SST_LP_SHIM_OFFSET 0xE7000
43#define SST_WPT_IRAM_OFFSET 0xA0000
44#define SST_LP_IRAM_OFFSET 0x80000
e9600bc1
LG		 45#define SST_WPT_DSP_DRAM_OFFSET 0x400000
46#define SST_WPT_DSP_IRAM_OFFSET 0x00000
47#define SST_LPT_DSP_DRAM_OFFSET 0x400000
48#define SST_LPT_DSP_IRAM_OFFSET 0x00000
a4b12990
MB		 49
50#define SST_SHIM_PM_REG 0x84
51
52#define SST_HSW_IRAM 1
53#define SST_HSW_DRAM 2
54#define SST_HSW_REGS 3
55
56struct dma_block_info {
57 __le32 type; /* IRAM/DRAM */
58 __le32 size; /* Bytes */
59 __le32 ram_offset; /* Offset in I/DRAM */
60 __le32 rsvd; /* Reserved field */
61} __attribute__((packed));
62
63struct fw_module_info {
64 __le32 persistent_size;
65 __le32 scratch_size;
66} __attribute__((packed));
67
68struct fw_header {
69 unsigned char signature[SST_HSW_FW_SIGNATURE_SIZE]; /* FW signature */
70 __le32 file_size; /* size of fw minus this header */
71 __le32 modules; /* # of modules */
72 __le32 file_format; /* version of header format */
73 __le32 reserved[4];
74} __attribute__((packed));
75
76struct fw_module_header {
77 unsigned char signature[SST_HSW_FW_SIGNATURE_SIZE]; /* module signature */
78 __le32 mod_size; /* size of module */
79 __le32 blocks; /* # of blocks */
80 __le16 padding;
81 __le16 type; /* codec type, pp lib */
82 __le32 entry_point;
83 struct fw_module_info info;
84} __attribute__((packed));
85
86static void hsw_free(struct sst_dsp *sst);
87
88static int hsw_parse_module(struct sst_dsp *dsp, struct sst_fw *fw,
89 struct fw_module_header *module)
90{
91 struct dma_block_info *block;
92 struct sst_module *mod;
a4b12990 93 struct sst_module_template template;
e9600bc1 94 int count, ret;
a4b12990
MB		 95 void __iomem *ram;
96
97 /* TODO: allowed module types need to be configurable */
98 if (module->type != SST_HSW_MODULE_BASE_FW
99 && module->type != SST_HSW_MODULE_PCM_SYSTEM
100 && module->type != SST_HSW_MODULE_PCM
101 && module->type != SST_HSW_MODULE_PCM_REFERENCE
102 && module->type != SST_HSW_MODULE_PCM_CAPTURE
8c43fc2f 103 && module->type != SST_HSW_MODULE_WAVES
a4b12990
MB		 104 && module->type != SST_HSW_MODULE_LPAL)
105 return 0;
106
107 dev_dbg(dsp->dev, "new module sign 0x%s size 0x%x blocks 0x%x type 0x%x\n",
108 module->signature, module->mod_size,
109 module->blocks, module->type);
110 dev_dbg(dsp->dev, " entrypoint 0x%x\n", module->entry_point);
111 dev_dbg(dsp->dev, " persistent 0x%x scratch 0x%x\n",
112 module->info.persistent_size, module->info.scratch_size);
113
114 memset(&template, 0, sizeof(template));
115 template.id = module->type;
e9600bc1
LG		 116 template.entry = module->entry_point - 4;
117 template.persistent_size = module->info.persistent_size;
118 template.scratch_size = module->info.scratch_size;
a4b12990
MB		 119
120 mod = sst_module_new(fw, &template, NULL);
121 if (mod == NULL)
122 return -ENOMEM;
123
124 block = (void *)module + sizeof(*module);
125
126 for (count = 0; count < module->blocks; count++) {
127
128 if (block->size <= 0) {
129 dev_err(dsp->dev,
130 "error: block %d size invalid\n", count);
131 sst_module_free(mod);
132 return -EINVAL;
133 }
134
135 switch (block->type) {
136 case SST_HSW_IRAM:
137 ram = dsp->addr.lpe;
e9600bc1 138 mod->offset =
a4b12990 139 block->ram_offset + dsp->addr.iram_offset;
e9600bc1 140 mod->type = SST_MEM_IRAM;
a4b12990
MB		 141 break;
142 case SST_HSW_DRAM:
8c43fc2f 143 case SST_HSW_REGS:
a4b12990 144 ram = dsp->addr.lpe;
e9600bc1
LG		 145 mod->offset = block->ram_offset;
146 mod->type = SST_MEM_DRAM;
a4b12990
MB		 147 break;
148 default:
149 dev_err(dsp->dev, "error: bad type 0x%x for block 0x%x\n",
150 block->type, count);
151 sst_module_free(mod);
152 return -EINVAL;
153 }
154
e9600bc1
LG		 155 mod->size = block->size;
156 mod->data = (void *)block + sizeof(*block);
157 mod->data_offset = mod->data - fw->dma_buf;
a4b12990 158
e9600bc1 159 dev_dbg(dsp->dev, "module block %d type 0x%x "
a4b12990 160 "size 0x%x ==> ram %p offset 0x%x\n",
e9600bc1 161 count, mod->type, block->size, ram,
a4b12990
MB		 162 block->ram_offset);
163
e9600bc1
LG		 164 ret = sst_module_alloc_blocks(mod);
165 if (ret < 0) {
166 dev_err(dsp->dev, "error: could not allocate blocks for module %d\n",
167 count);
168 sst_module_free(mod);
169 return ret;
170 }
a4b12990
MB		 171
172 block = (void *)block + sizeof(*block) + block->size;
173 }
9449d39b 174 mod->state = SST_MODULE_STATE_LOADED;
e9600bc1 175
a4b12990
MB		 176 return 0;
177}
178
179static int hsw_parse_fw_image(struct sst_fw *sst_fw)
180{
181 struct fw_header *header;
a4b12990
MB		 182 struct fw_module_header *module;
183 struct sst_dsp *dsp = sst_fw->dsp;
a4b12990
MB		 184 int ret, count;
185
186 /* Read the header information from the data pointer */
187 header = (struct fw_header *)sst_fw->dma_buf;
188
189 /* verify FW */
190 if ((strncmp(header->signature, SST_HSW_FW_SIGN, 4) != 0) ||
191 (sst_fw->size != header->file_size + sizeof(*header))) {
192 dev_err(dsp->dev, "error: invalid fw sign/filesize mismatch\n");
193 return -EINVAL;
194 }
195
196 dev_dbg(dsp->dev, "header size=0x%x modules=0x%x fmt=0x%x size=%zu\n",
197 header->file_size, header->modules,
198 header->file_format, sizeof(*header));
199
200 /* parse each module */
201 module = (void *)sst_fw->dma_buf + sizeof(*header);
202 for (count = 0; count < header->modules; count++) {
203
204 /* module */
205 ret = hsw_parse_module(dsp, sst_fw, module);
206 if (ret < 0) {
207 dev_err(dsp->dev, "error: invalid module %d\n", count);
208 return ret;
209 }
210 module = (void *)module + sizeof(*module) + module->mod_size;
211 }
212
a4b12990
MB		 213 return 0;
214}
215
216static irqreturn_t hsw_irq(int irq, void *context)
217{
218 struct sst_dsp *sst = (struct sst_dsp *) context;
219 u32 isr;
220 int ret = IRQ_NONE;
221
222 spin_lock(&sst->spinlock);
223
224 /* Interrupt arrived, check src */
225 isr = sst_dsp_shim_read_unlocked(sst, SST_ISRX);
226 if (isr & SST_ISRX_DONE) {
227 trace_sst_irq_done(isr,
228 sst_dsp_shim_read_unlocked(sst, SST_IMRX));
229
230 /* Mask Done interrupt before return */
231 sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
232 SST_IMRX_DONE, SST_IMRX_DONE);
233 ret = IRQ_WAKE_THREAD;
234 }
235
236 if (isr & SST_ISRX_BUSY) {
237 trace_sst_irq_busy(isr,
238 sst_dsp_shim_read_unlocked(sst, SST_IMRX));
239
240 /* Mask Busy interrupt before return */
241 sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
242 SST_IMRX_BUSY, SST_IMRX_BUSY);
243 ret = IRQ_WAKE_THREAD;
244 }
245
246 spin_unlock(&sst->spinlock);
247 return ret;
248}
249
6b7b4b89
LG		 250static void hsw_set_dsp_D3(struct sst_dsp *sst)
251{
252 u32 val;
0d2135ec
JY		 253 u32 reg;
254
255 /* Disable core clock gating (VDRTCTL2.DCLCGE = 0) */
256 reg = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
257 reg &= ~(SST_VDRTCL2_DCLCGE | SST_VDRTCL2_DTCGE);
258 writel(reg, sst->addr.pci_cfg + SST_VDRTCTL2);
6b7b4b89 259
0d2135ec 260 /* enable power gating and switch off DRAM & IRAM blocks */
6b7b4b89 261 val = readl(sst->addr.pci_cfg + SST_VDRTCTL0);
0d2135ec 262 val |= SST_VDRTCL0_DSRAMPGE_MASK |
6b7b4b89 263 SST_VDRTCL0_ISRAMPGE_MASK;
0d2135ec 264 val &= ~(SST_VDRTCL0_D3PGD | SST_VDRTCL0_D3SRAMPGD);
6b7b4b89
LG		 265 writel(val, sst->addr.pci_cfg + SST_VDRTCTL0);
266
0d2135ec
JY		 267 /* switch off audio PLL */
268 val = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
269 val |= SST_VDRTCL2_APLLSE_MASK;
270 writel(val, sst->addr.pci_cfg + SST_VDRTCTL2);
271
272 /* disable MCLK(clkctl.smos = 0) */
273 sst_dsp_shim_update_bits_unlocked(sst, SST_CLKCTL,
274 SST_CLKCTL_MASK, 0);
275
276 /* Set D3 state, delay 50 us */
6b7b4b89
LG		 277 val = readl(sst->addr.pci_cfg + SST_PMCS);
278 val |= SST_PMCS_PS_MASK;
279 writel(val, sst->addr.pci_cfg + SST_PMCS);
0d2135ec
JY		 280 udelay(50);
281
282 /* Enable core clock gating (VDRTCTL2.DCLCGE = 1), delay 50 us */
283 reg = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
284 reg |= SST_VDRTCL2_DCLCGE | SST_VDRTCL2_DTCGE;
285 writel(reg, sst->addr.pci_cfg + SST_VDRTCTL2);
286
287 udelay(50);
288
6b7b4b89
LG		 289}
290
291static void hsw_reset(struct sst_dsp *sst)
292{
293 /* put DSP into reset and stall */
294 sst_dsp_shim_update_bits_unlocked(sst, SST_CSR,
295 SST_CSR_RST | SST_CSR_STALL,
296 SST_CSR_RST | SST_CSR_STALL);
297
298 /* keep in reset for 10ms */
299 mdelay(10);
300
301 /* take DSP out of reset and keep stalled for FW loading */
302 sst_dsp_shim_update_bits_unlocked(sst, SST_CSR,
303 SST_CSR_RST | SST_CSR_STALL, SST_CSR_STALL);
304}
305
306static int hsw_set_dsp_D0(struct sst_dsp *sst)
a4b12990 307{
6b7b4b89 308 int tries = 10;
69067f9d 309 u32 reg, fw_dump_bit;
6b7b4b89 310
0d2135ec
JY		 311 /* Disable core clock gating (VDRTCTL2.DCLCGE = 0) */
312 reg = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
313 reg &= ~(SST_VDRTCL2_DCLCGE | SST_VDRTCL2_DTCGE);
314 writel(reg, sst->addr.pci_cfg + SST_VDRTCTL2);
315
316 /* Disable D3PG (VDRTCTL0.D3PGD = 1) */
317 reg = readl(sst->addr.pci_cfg + SST_VDRTCTL0);
318 reg |= SST_VDRTCL0_D3PGD;
319 writel(reg, sst->addr.pci_cfg + SST_VDRTCTL0);
320
6b7b4b89
LG		 321 /* Set D0 state */
322 reg = readl(sst->addr.pci_cfg + SST_PMCS);
323 reg &= ~SST_PMCS_PS_MASK;
324 writel(reg, sst->addr.pci_cfg + SST_PMCS);
325
326 /* check that ADSP shim is enabled */
327 while (tries--) {
328 reg = readl(sst->addr.pci_cfg + SST_PMCS) & SST_PMCS_PS_MASK;
329 if (reg == 0)
330 goto finish;
331
332 msleep(1);
333 }
334
335 return -ENODEV;
336
337finish:
a4b12990
MB		 338 /* select SSP1 19.2MHz base clock, SSP clock 0, turn off Low Power Clock */
339 sst_dsp_shim_update_bits_unlocked(sst, SST_CSR,
340 SST_CSR_S1IOCS | SST_CSR_SBCS1 | SST_CSR_LPCS, 0x0);
341
342 /* stall DSP core, set clk to 192/96Mhz */
343 sst_dsp_shim_update_bits_unlocked(sst,
344 SST_CSR, SST_CSR_STALL | SST_CSR_DCS_MASK,
345 SST_CSR_STALL | SST_CSR_DCS(4));
346
347 /* Set 24MHz MCLK, prevent local clock gating, enable SSP0 clock */
348 sst_dsp_shim_update_bits_unlocked(sst, SST_CLKCTL,
349 SST_CLKCTL_MASK | SST_CLKCTL_DCPLCG | SST_CLKCTL_SCOE0,
350 SST_CLKCTL_MASK | SST_CLKCTL_DCPLCG | SST_CLKCTL_SCOE0);
351
0d2135ec
JY		 352 /* Stall and reset core, set CSR */
353 hsw_reset(sst);
354
355 /* Enable core clock gating (VDRTCTL2.DCLCGE = 1), delay 50 us */
356 reg = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
357 reg |= SST_VDRTCL2_DCLCGE | SST_VDRTCL2_DTCGE;
358 writel(reg, sst->addr.pci_cfg + SST_VDRTCTL2);
359
360 udelay(50);
361
362 /* switch on audio PLL */
363 reg = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
364 reg &= ~SST_VDRTCL2_APLLSE_MASK;
365 writel(reg, sst->addr.pci_cfg + SST_VDRTCTL2);
366
367 /* set default power gating control, enable power gating control for all blocks. that is,
368 can't be accessed, please enable each block before accessing. */
369 reg = readl(sst->addr.pci_cfg + SST_VDRTCTL0);
370 reg |= SST_VDRTCL0_DSRAMPGE_MASK | SST_VDRTCL0_ISRAMPGE_MASK;
69067f9d
JY		 371 /* for D0, always enable the block(DSRAM[0]) used for FW dump */
372 fw_dump_bit = 1 << SST_VDRTCL0_DSRAMPGE_SHIFT;
373 writel(reg & ~fw_dump_bit, sst->addr.pci_cfg + SST_VDRTCTL0);
0d2135ec
JY		 374
375
a4b12990
MB		 376 /* disable DMA finish function for SSP0 & SSP1 */
377 sst_dsp_shim_update_bits_unlocked(sst, SST_CSR2, SST_CSR2_SDFD_SSP1,
378 SST_CSR2_SDFD_SSP1);
379
6b7b4b89
LG		 380 /* set on-demond mode on engine 0,1 for all channels */
381 sst_dsp_shim_update_bits(sst, SST_HMDC,
382 SST_HMDC_HDDA_E0_ALLCH | SST_HMDC_HDDA_E1_ALLCH,
383 SST_HMDC_HDDA_E0_ALLCH | SST_HMDC_HDDA_E1_ALLCH);
384
385 /* Enable Interrupt from both sides */
386 sst_dsp_shim_update_bits(sst, SST_IMRX, (SST_IMRX_BUSY | SST_IMRX_DONE),
387 0x0);
388 sst_dsp_shim_update_bits(sst, SST_IMRD, (SST_IMRD_DONE | SST_IMRD_BUSY |
389 SST_IMRD_SSP0 | SST_IMRD_DMAC), 0x0);
390
391 /* clear IPC registers */
392 sst_dsp_shim_write(sst, SST_IPCX, 0x0);
393 sst_dsp_shim_write(sst, SST_IPCD, 0x0);
394 sst_dsp_shim_write(sst, 0x80, 0x6);
395 sst_dsp_shim_write(sst, 0xe0, 0x300a);
a4b12990 396
6b7b4b89
LG		 397 return 0;
398}
399
400static void hsw_boot(struct sst_dsp *sst)
401{
402 /* set oportunistic mode on engine 0,1 for all channels */
403 sst_dsp_shim_update_bits(sst, SST_HMDC,
404 SST_HMDC_HDDA_E0_ALLCH | SST_HMDC_HDDA_E1_ALLCH, 0);
405
a4b12990
MB		 406 /* set DSP to RUN */
407 sst_dsp_shim_update_bits_unlocked(sst, SST_CSR, SST_CSR_STALL, 0x0);
408}
409
6b7b4b89 410static void hsw_stall(struct sst_dsp *sst)
a4b12990 411{
6b7b4b89
LG		 412 /* stall DSP */
413 sst_dsp_shim_update_bits(sst, SST_CSR,
414 SST_CSR_24MHZ_LPCS | SST_CSR_STALL,
415 SST_CSR_STALL | SST_CSR_24MHZ_LPCS);
416}
417
418static void hsw_sleep(struct sst_dsp *sst)
419{
420 dev_dbg(sst->dev, "HSW_PM dsp runtime suspend\n");
421
a4b12990 422 /* put DSP into reset and stall */
6b7b4b89
LG		 423 sst_dsp_shim_update_bits(sst, SST_CSR,
424 SST_CSR_24MHZ_LPCS | SST_CSR_RST | SST_CSR_STALL,
425 SST_CSR_RST | SST_CSR_STALL | SST_CSR_24MHZ_LPCS);
a4b12990 426
6b7b4b89
LG		 427 hsw_set_dsp_D3(sst);
428 dev_dbg(sst->dev, "HSW_PM dsp runtime suspend exit\n");
429}
a4b12990 430
6b7b4b89
LG		 431static int hsw_wake(struct sst_dsp *sst)
432{
433 int ret;
434
435 dev_dbg(sst->dev, "HSW_PM dsp runtime resume\n");
436
437 ret = hsw_set_dsp_D0(sst);
438 if (ret < 0)
439 return ret;
440
441 dev_dbg(sst->dev, "HSW_PM dsp runtime resume exit\n");
442
443 return 0;
a4b12990
MB		 444}
445
446struct sst_adsp_memregion {
447 u32 start;
448 u32 end;
449 int blocks;
450 enum sst_mem_type type;
451};
452
453/* lynx point ADSP mem regions */
454static const struct sst_adsp_memregion lp_region[] = {
455 {0x00000, 0x40000, 8, SST_MEM_DRAM}, /* D-SRAM0 - 8 * 32kB */
456 {0x40000, 0x80000, 8, SST_MEM_DRAM}, /* D-SRAM1 - 8 * 32kB */
457 {0x80000, 0xE0000, 12, SST_MEM_IRAM}, /* I-SRAM - 12 * 32kB */
458};
459
460/* wild cat point ADSP mem regions */
461static const struct sst_adsp_memregion wpt_region[] = {
15446c0b 462 {0x00000, 0xA0000, 20, SST_MEM_DRAM}, /* D-SRAM0,D-SRAM1,D-SRAM2 - 20 * 32kB */
a4b12990
MB		 463 {0xA0000, 0xF0000, 10, SST_MEM_IRAM}, /* I-SRAM - 10 * 32kB */
464};
465
466static int hsw_acpi_resource_map(struct sst_dsp *sst, struct sst_pdata *pdata)
467{
468 /* ADSP DRAM & IRAM */
469 sst->addr.lpe_base = pdata->lpe_base;
470 sst->addr.lpe = ioremap(pdata->lpe_base, pdata->lpe_size);
471 if (!sst->addr.lpe)
472 return -ENODEV;
473
474 /* ADSP PCI MMIO config space */
475 sst->addr.pci_cfg = ioremap(pdata->pcicfg_base, pdata->pcicfg_size);
476 if (!sst->addr.pci_cfg) {
477 iounmap(sst->addr.lpe);
478 return -ENODEV;
479 }
480
481 /* SST Shim */
482 sst->addr.shim = sst->addr.lpe + sst->addr.shim_offset;
483 return 0;
484}
485
54879323
JY		 486struct sst_sram_shift {
487 u32 dev_id; /* SST Device IDs */
488 u32 iram_shift;
489 u32 dram_shift;
490};
491
492static const struct sst_sram_shift sram_shift[] = {
493 {SST_DEV_ID_LYNX_POINT, 6, 16}, /* lp */
494 {SST_DEV_ID_WILDCAT_POINT, 2, 12}, /* wpt */
495};
69067f9d 496
a4b12990
MB		 497static u32 hsw_block_get_bit(struct sst_mem_block *block)
498{
54879323
JY		 499 u32 bit = 0, shift = 0, index;
500 struct sst_dsp *sst = block->dsp;
a4b12990 501
54879323
JY		 502 for (index = 0; index < ARRAY_SIZE(sram_shift); index++) {
503 if (sram_shift[index].dev_id == sst->id)
504 break;
a4b12990
MB		 505 }
506
54879323
JY		 507 if (index < ARRAY_SIZE(sram_shift)) {
508 switch (block->type) {
509 case SST_MEM_DRAM:
510 shift = sram_shift[index].dram_shift;
511 break;
512 case SST_MEM_IRAM:
513 shift = sram_shift[index].iram_shift;
514 break;
515 default:
516 shift = 0;
517 }
518 } else
519 shift = 0;
520
a4b12990
MB		 521 bit = 1 << (block->index + shift);
522
523 return bit;
524}
525
c761b583
JY		 526/*dummy read a SRAM block.*/
527static void sst_mem_block_dummy_read(struct sst_mem_block *block)
528{
529 u32 size;
530 u8 tmp_buf[4];
531 struct sst_dsp *sst = block->dsp;
532
533 size = block->size > 4 ? 4 : block->size;
534 memcpy_fromio(tmp_buf, sst->addr.lpe + block->offset, size);
535}
536
a4b12990
MB		 537/* enable 32kB memory block - locks held by caller */
538static int hsw_block_enable(struct sst_mem_block *block)
539{
540 struct sst_dsp *sst = block->dsp;
541 u32 bit, val;
542
543 if (block->users++ > 0)
544 return 0;
545
546 dev_dbg(block->dsp->dev, " enabled block %d:%d at offset 0x%x\n",
547 block->type, block->index, block->offset);
548
0d2135ec
JY		 549 /* Disable core clock gating (VDRTCTL2.DCLCGE = 0) */
550 val = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
551 val &= ~SST_VDRTCL2_DCLCGE;
552 writel(val, sst->addr.pci_cfg + SST_VDRTCTL2);
553
a4b12990
MB		 554 val = readl(sst->addr.pci_cfg + SST_VDRTCTL0);
555 bit = hsw_block_get_bit(block);
556 writel(val & ~bit, sst->addr.pci_cfg + SST_VDRTCTL0);
557
558 /* wait 18 DSP clock ticks */
559 udelay(10);
560
0d2135ec
JY		 561 /* Enable core clock gating (VDRTCTL2.DCLCGE = 1), delay 50 us */
562 val = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
563 val |= SST_VDRTCL2_DCLCGE;
564 writel(val, sst->addr.pci_cfg + SST_VDRTCTL2);
565
566 udelay(50);
567
c761b583
JY		 568 /*add a dummy read before the SRAM block is written, otherwise the writing may miss bytes sometimes.*/
569 sst_mem_block_dummy_read(block);
a4b12990
MB		 570 return 0;
571}
572
573/* disable 32kB memory block - locks held by caller */
574static int hsw_block_disable(struct sst_mem_block *block)
575{
576 struct sst_dsp *sst = block->dsp;
577 u32 bit, val;
578
579 if (--block->users > 0)
580 return 0;
581
582 dev_dbg(block->dsp->dev, " disabled block %d:%d at offset 0x%x\n",
583 block->type, block->index, block->offset);
584
0d2135ec
JY		 585 /* Disable core clock gating (VDRTCTL2.DCLCGE = 0) */
586 val = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
587 val &= ~SST_VDRTCL2_DCLCGE;
588 writel(val, sst->addr.pci_cfg + SST_VDRTCTL2);
589
590
a4b12990
MB		 591 val = readl(sst->addr.pci_cfg + SST_VDRTCTL0);
592 bit = hsw_block_get_bit(block);
69067f9d
JY		 593 /* don't disable DSRAM[0], keep it always enable for FW dump*/
594 if (bit != (1 << SST_VDRTCL0_DSRAMPGE_SHIFT))
595 writel(val | bit, sst->addr.pci_cfg + SST_VDRTCTL0);
a4b12990 596
0d2135ec
JY		 597 /* wait 18 DSP clock ticks */
598 udelay(10);
599
600 /* Enable core clock gating (VDRTCTL2.DCLCGE = 1), delay 50 us */
601 val = readl(sst->addr.pci_cfg + SST_VDRTCTL2);
602 val |= SST_VDRTCL2_DCLCGE;
603 writel(val, sst->addr.pci_cfg + SST_VDRTCTL2);
604
605 udelay(50);
606
a4b12990
MB		 607 return 0;
608}
609
610static struct sst_block_ops sst_hsw_ops = {
611 .enable = hsw_block_enable,
612 .disable = hsw_block_disable,
613};
614
a4b12990
MB		 615static int hsw_init(struct sst_dsp *sst, struct sst_pdata *pdata)
616{
617 const struct sst_adsp_memregion *region;
618 struct device *dev;
619 int ret = -ENODEV, i, j, region_count;
69067f9d 620 u32 offset, size, fw_dump_bit;
a4b12990 621
10df3509 622 dev = sst->dma_dev;
a4b12990
MB		 623
624 switch (sst->id) {
625 case SST_DEV_ID_LYNX_POINT:
626 region = lp_region;
627 region_count = ARRAY_SIZE(lp_region);
628 sst->addr.iram_offset = SST_LP_IRAM_OFFSET;
e9600bc1
LG		 629 sst->addr.dsp_iram_offset = SST_LPT_DSP_IRAM_OFFSET;
630 sst->addr.dsp_dram_offset = SST_LPT_DSP_DRAM_OFFSET;
a4b12990
MB		 631 sst->addr.shim_offset = SST_LP_SHIM_OFFSET;
632 break;
633 case SST_DEV_ID_WILDCAT_POINT:
634 region = wpt_region;
635 region_count = ARRAY_SIZE(wpt_region);
636 sst->addr.iram_offset = SST_WPT_IRAM_OFFSET;
e9600bc1
LG		 637 sst->addr.dsp_iram_offset = SST_WPT_DSP_IRAM_OFFSET;
638 sst->addr.dsp_dram_offset = SST_WPT_DSP_DRAM_OFFSET;
a4b12990
MB		 639 sst->addr.shim_offset = SST_WPT_SHIM_OFFSET;
640 break;
641 default:
642 dev_err(dev, "error: failed to get mem resources\n");
643 return ret;
644 }
645
646 ret = hsw_acpi_resource_map(sst, pdata);
647 if (ret < 0) {
648 dev_err(dev, "error: failed to map resources\n");
649 return ret;
650 }
651
652 /* enable the DSP SHIM */
6b7b4b89 653 ret = hsw_set_dsp_D0(sst);
a4b12990
MB		 654 if (ret < 0) {
655 dev_err(dev, "error: failed to set DSP D0 and reset SHIM\n");
656 return ret;
657 }
658
10df3509 659 ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(31));
a4b12990
MB		 660 if (ret)
661 return ret;
662
a4b12990
MB		 663
664 /* register DSP memory blocks - ideally we should get this from ACPI */
665 for (i = 0; i < region_count; i++) {
666 offset = region[i].start;
667 size = (region[i].end - region[i].start) / region[i].blocks;
668
669 /* register individual memory blocks */
670 for (j = 0; j < region[i].blocks; j++) {
671 sst_mem_block_register(sst, offset, size,
672 region[i].type, &sst_hsw_ops, j, sst);
673 offset += size;
674 }
675 }
676
69067f9d
JY		 677 /* always enable the block(DSRAM[0]) used for FW dump */
678 fw_dump_bit = 1 << SST_VDRTCL0_DSRAMPGE_SHIFT;
85e63007
JY		 679 /* set default power gating control, enable power gating control for all blocks. that is,
680 can't be accessed, please enable each block before accessing. */
69067f9d 681 writel(0xffffffff & ~fw_dump_bit, sst->addr.pci_cfg + SST_VDRTCTL0);
a4b12990
MB		 682
683 return 0;
684}
685
686static void hsw_free(struct sst_dsp *sst)
687{
688 sst_mem_block_unregister_all(sst);
689 iounmap(sst->addr.lpe);
690 iounmap(sst->addr.pci_cfg);
691}
692
693struct sst_ops haswell_ops = {
694 .reset = hsw_reset,
695 .boot = hsw_boot,
6b7b4b89
LG		 696 .stall = hsw_stall,
697 .wake = hsw_wake,
698 .sleep = hsw_sleep,
a4b12990
MB		 699 .write = sst_shim32_write,
700 .read = sst_shim32_read,
701 .write64 = sst_shim32_write64,
702 .read64 = sst_shim32_read64,
703 .ram_read = sst_memcpy_fromio_32,
704 .ram_write = sst_memcpy_toio_32,
705 .irq_handler = hsw_irq,
706 .init = hsw_init,
707 .free = hsw_free,
708 .parse_fw = hsw_parse_fw_image,
709};
Linux kernel - Deliverables
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