2 * sst_acpi.c - SST (LPE) driver init file for ACPI enumeration.
4 * Copyright (c) 2013, Intel Corporation.
6 * Authors: Ramesh Babu K V <Ramesh.Babu@intel.com>
7 * Authors: Omair Mohammed Abdullah <omair.m.abdullah@intel.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms and conditions of the GNU General Public License,
11 * version 2, as published by the Free Software Foundation.
13 * This program is distributed in the hope it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
21 #include <linux/module.h>
23 #include <linux/interrupt.h>
24 #include <linux/slab.h>
26 #include <linux/miscdevice.h>
27 #include <linux/platform_device.h>
28 #include <linux/firmware.h>
29 #include <linux/pm_runtime.h>
30 #include <linux/pm_qos.h>
31 #include <linux/acpi.h>
32 #include <asm/platform_sst_audio.h>
33 #include <sound/core.h>
34 #include <sound/soc.h>
35 #include <sound/compress_driver.h>
36 #include <acpi/acbuffer.h>
37 #include <acpi/platform/acenv.h>
38 #include <acpi/platform/aclinux.h>
39 #include <acpi/actypes.h>
40 #include <acpi/acpi_bus.h>
41 #include "../sst-mfld-platform.h"
42 #include "../../common/sst-dsp.h"
43 #include "../../common/sst-acpi.h"
46 /* LPE viewpoint addresses */
47 #define SST_BYT_IRAM_PHY_START 0xff2c0000
48 #define SST_BYT_IRAM_PHY_END 0xff2d4000
49 #define SST_BYT_DRAM_PHY_START 0xff300000
50 #define SST_BYT_DRAM_PHY_END 0xff320000
51 #define SST_BYT_IMR_VIRT_START 0xc0000000 /* virtual addr in LPE */
52 #define SST_BYT_IMR_VIRT_END 0xc01fffff
53 #define SST_BYT_SHIM_PHY_ADDR 0xff340000
54 #define SST_BYT_MBOX_PHY_ADDR 0xff344000
55 #define SST_BYT_DMA0_PHY_ADDR 0xff298000
56 #define SST_BYT_DMA1_PHY_ADDR 0xff29c000
57 #define SST_BYT_SSP0_PHY_ADDR 0xff2a0000
58 #define SST_BYT_SSP2_PHY_ADDR 0xff2a2000
60 #define BYT_FW_MOD_TABLE_OFFSET 0x80000
61 #define BYT_FW_MOD_TABLE_SIZE 0x100
62 #define BYT_FW_MOD_OFFSET (BYT_FW_MOD_TABLE_OFFSET + BYT_FW_MOD_TABLE_SIZE)
64 static const struct sst_info byt_fwparse_info
= {
67 .iram_start
= SST_BYT_IRAM_PHY_START
,
68 .iram_end
= SST_BYT_IRAM_PHY_END
,
70 .dram_start
= SST_BYT_DRAM_PHY_START
,
71 .dram_end
= SST_BYT_DRAM_PHY_END
,
73 .imr_start
= SST_BYT_IMR_VIRT_START
,
74 .imr_end
= SST_BYT_IMR_VIRT_END
,
76 .mailbox_start
= SST_BYT_MBOX_PHY_ADDR
,
78 .lpe_viewpt_rqd
= true,
81 static const struct sst_ipc_info byt_ipc_info
= {
83 .mbox_recv_off
= 0x400,
86 static const struct sst_lib_dnld_info byt_lib_dnld_info
= {
87 .mod_base
= SST_BYT_IMR_VIRT_START
,
88 .mod_end
= SST_BYT_IMR_VIRT_END
,
89 .mod_table_offset
= BYT_FW_MOD_TABLE_OFFSET
,
90 .mod_table_size
= BYT_FW_MOD_TABLE_SIZE
,
91 .mod_ddr_dnld
= false,
94 static const struct sst_res_info byt_rvp_res_info
= {
95 .shim_offset
= 0x140000,
96 .shim_size
= 0x000100,
97 .shim_phy_addr
= SST_BYT_SHIM_PHY_ADDR
,
98 .ssp0_offset
= 0xa0000,
100 .dma0_offset
= 0x98000,
102 .dma1_offset
= 0x9c000,
104 .iram_offset
= 0x0c0000,
105 .iram_size
= 0x14000,
106 .dram_offset
= 0x100000,
107 .dram_size
= 0x28000,
108 .mbox_offset
= 0x144000,
110 .acpi_lpe_res_index
= 0,
112 .acpi_ipc_irq_index
= 5,
115 static struct sst_platform_info byt_rvp_platform_data
= {
116 .probe_data
= &byt_fwparse_info
,
117 .ipc_info
= &byt_ipc_info
,
118 .lib_info
= &byt_lib_dnld_info
,
119 .res_info
= &byt_rvp_res_info
,
120 .platform
= "sst-mfld-platform",
123 /* Cherryview (Cherrytrail and Braswell) uses same mrfld dpcm fw as Baytrail,
124 * so pdata is same as Baytrail.
126 static struct sst_platform_info chv_platform_data
= {
127 .probe_data
= &byt_fwparse_info
,
128 .ipc_info
= &byt_ipc_info
,
129 .lib_info
= &byt_lib_dnld_info
,
130 .res_info
= &byt_rvp_res_info
,
131 .platform
= "sst-mfld-platform",
134 static int sst_platform_get_resources(struct intel_sst_drv
*ctx
)
136 struct resource
*rsrc
;
137 struct platform_device
*pdev
= to_platform_device(ctx
->dev
);
139 /* All ACPI resource request here */
141 rsrc
= platform_get_resource(pdev
, IORESOURCE_MEM
,
142 ctx
->pdata
->res_info
->acpi_lpe_res_index
);
144 dev_err(ctx
->dev
, "Invalid SHIM base from IFWI");
147 dev_info(ctx
->dev
, "LPE base: %#x size:%#x", (unsigned int) rsrc
->start
,
148 (unsigned int)resource_size(rsrc
));
150 ctx
->iram_base
= rsrc
->start
+ ctx
->pdata
->res_info
->iram_offset
;
151 ctx
->iram_end
= ctx
->iram_base
+ ctx
->pdata
->res_info
->iram_size
- 1;
152 dev_info(ctx
->dev
, "IRAM base: %#x", ctx
->iram_base
);
153 ctx
->iram
= devm_ioremap_nocache(ctx
->dev
, ctx
->iram_base
,
154 ctx
->pdata
->res_info
->iram_size
);
156 dev_err(ctx
->dev
, "unable to map IRAM");
160 ctx
->dram_base
= rsrc
->start
+ ctx
->pdata
->res_info
->dram_offset
;
161 ctx
->dram_end
= ctx
->dram_base
+ ctx
->pdata
->res_info
->dram_size
- 1;
162 dev_info(ctx
->dev
, "DRAM base: %#x", ctx
->dram_base
);
163 ctx
->dram
= devm_ioremap_nocache(ctx
->dev
, ctx
->dram_base
,
164 ctx
->pdata
->res_info
->dram_size
);
166 dev_err(ctx
->dev
, "unable to map DRAM");
170 ctx
->shim_phy_add
= rsrc
->start
+ ctx
->pdata
->res_info
->shim_offset
;
171 dev_info(ctx
->dev
, "SHIM base: %#x", ctx
->shim_phy_add
);
172 ctx
->shim
= devm_ioremap_nocache(ctx
->dev
, ctx
->shim_phy_add
,
173 ctx
->pdata
->res_info
->shim_size
);
175 dev_err(ctx
->dev
, "unable to map SHIM");
179 /* reassign physical address to LPE viewpoint address */
180 ctx
->shim_phy_add
= ctx
->pdata
->res_info
->shim_phy_addr
;
182 /* Get mailbox addr */
183 ctx
->mailbox_add
= rsrc
->start
+ ctx
->pdata
->res_info
->mbox_offset
;
184 dev_info(ctx
->dev
, "Mailbox base: %#x", ctx
->mailbox_add
);
185 ctx
->mailbox
= devm_ioremap_nocache(ctx
->dev
, ctx
->mailbox_add
,
186 ctx
->pdata
->res_info
->mbox_size
);
188 dev_err(ctx
->dev
, "unable to map mailbox");
192 /* reassign physical address to LPE viewpoint address */
193 ctx
->mailbox_add
= ctx
->info
.mailbox_start
;
195 rsrc
= platform_get_resource(pdev
, IORESOURCE_MEM
,
196 ctx
->pdata
->res_info
->acpi_ddr_index
);
198 dev_err(ctx
->dev
, "Invalid DDR base from IFWI");
201 ctx
->ddr_base
= rsrc
->start
;
202 ctx
->ddr_end
= rsrc
->end
;
203 dev_info(ctx
->dev
, "DDR base: %#x", ctx
->ddr_base
);
204 ctx
->ddr
= devm_ioremap_nocache(ctx
->dev
, ctx
->ddr_base
,
205 resource_size(rsrc
));
207 dev_err(ctx
->dev
, "unable to map DDR");
212 ctx
->irq_num
= platform_get_irq(pdev
,
213 ctx
->pdata
->res_info
->acpi_ipc_irq_index
);
217 static int sst_acpi_probe(struct platform_device
*pdev
)
219 struct device
*dev
= &pdev
->dev
;
221 struct intel_sst_drv
*ctx
;
222 const struct acpi_device_id
*id
;
223 struct sst_acpi_mach
*mach
;
224 struct platform_device
*mdev
;
225 struct platform_device
*plat_dev
;
226 struct sst_platform_info
*pdata
;
229 id
= acpi_match_device(dev
->driver
->acpi_match_table
, dev
);
232 dev_dbg(dev
, "for %s", id
->id
);
234 mach
= (struct sst_acpi_mach
*)id
->driver_data
;
235 mach
= sst_acpi_find_machine(mach
);
237 dev_err(dev
, "No matching machine driver found\n");
242 ret
= kstrtouint(id
->id
, 16, &dev_id
);
244 dev_err(dev
, "Unique device id conversion error: %d\n", ret
);
248 dev_dbg(dev
, "ACPI device id: %x\n", dev_id
);
250 plat_dev
= platform_device_register_data(dev
, pdata
->platform
, -1,
252 if (IS_ERR(plat_dev
)) {
253 dev_err(dev
, "Failed to create machine device: %s\n",
255 return PTR_ERR(plat_dev
);
259 * Create platform device for sst machine driver,
260 * pass machine info as pdata
262 mdev
= platform_device_register_data(dev
, mach
->drv_name
, -1,
263 (const void *)mach
, sizeof(*mach
));
265 dev_err(dev
, "Failed to create machine device: %s\n",
267 return PTR_ERR(mdev
);
270 ret
= sst_alloc_drv_context(&ctx
, dev
, dev_id
);
274 /* Fill sst platform data */
276 strcpy(ctx
->firmware_name
, mach
->fw_filename
);
278 ret
= sst_platform_get_resources(ctx
);
282 ret
= sst_context_init(ctx
);
286 /* need to save shim registers in BYT */
287 ctx
->shim_regs64
= devm_kzalloc(ctx
->dev
, sizeof(*ctx
->shim_regs64
),
289 if (!ctx
->shim_regs64
) {
294 sst_configure_runtime_pm(ctx
);
295 platform_set_drvdata(pdev
, ctx
);
299 sst_context_cleanup(ctx
);
300 platform_set_drvdata(pdev
, NULL
);
301 dev_err(ctx
->dev
, "failed with %d\n", ret
);
306 * intel_sst_remove - remove function
308 * @pdev: platform device structure
310 * This function is called by OS when a device is unloaded
311 * This frees the interrupt etc
313 static int sst_acpi_remove(struct platform_device
*pdev
)
315 struct intel_sst_drv
*ctx
;
317 ctx
= platform_get_drvdata(pdev
);
318 sst_context_cleanup(ctx
);
319 platform_set_drvdata(pdev
, NULL
);
323 static struct sst_acpi_mach sst_acpi_bytcr
[] = {
324 {"10EC5640", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL
,
325 &byt_rvp_platform_data
},
326 {"10EC5642", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL
,
327 &byt_rvp_platform_data
},
328 {"INTCCFFD", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL
,
329 &byt_rvp_platform_data
},
330 {"10EC5651", "bytcr_rt5651", "intel/fw_sst_0f28.bin", "bytcr_rt5651", NULL
,
331 &byt_rvp_platform_data
},
335 /* Cherryview-based platforms: CherryTrail and Braswell */
336 static struct sst_acpi_mach sst_acpi_chv
[] = {
337 {"10EC5670", "cht-bsw-rt5672", "intel/fw_sst_22a8.bin", "cht-bsw", NULL
,
338 &chv_platform_data
},
339 {"10EC5645", "cht-bsw-rt5645", "intel/fw_sst_22a8.bin", "cht-bsw", NULL
,
340 &chv_platform_data
},
341 {"10EC5650", "cht-bsw-rt5645", "intel/fw_sst_22a8.bin", "cht-bsw", NULL
,
342 &chv_platform_data
},
343 {"193C9890", "cht-bsw-max98090", "intel/fw_sst_22a8.bin", "cht-bsw", NULL
,
344 &chv_platform_data
},
345 /* some CHT-T platforms rely on RT5640, use Baytrail machine driver */
346 {"10EC5640", "bytcr_rt5640", "intel/fw_sst_22a8.bin", "bytcr_rt5640", NULL
,
347 &chv_platform_data
},
352 static const struct acpi_device_id sst_acpi_ids
[] = {
353 { "80860F28", (unsigned long)&sst_acpi_bytcr
},
354 { "808622A8", (unsigned long) &sst_acpi_chv
},
358 MODULE_DEVICE_TABLE(acpi
, sst_acpi_ids
);
360 static struct platform_driver sst_acpi_driver
= {
362 .name
= "intel_sst_acpi",
363 .acpi_match_table
= ACPI_PTR(sst_acpi_ids
),
366 .probe
= sst_acpi_probe
,
367 .remove
= sst_acpi_remove
,
370 module_platform_driver(sst_acpi_driver
);
372 MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine ACPI Driver");
373 MODULE_AUTHOR("Ramesh Babu K V");
374 MODULE_AUTHOR("Omair Mohammed Abdullah");
375 MODULE_LICENSE("GPL v2");