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, NULL, 0);
251 if (IS_ERR(plat_dev)) {
252 dev_err(dev, "Failed to create machine device: %s\n", pdata->platform);
253 return PTR_ERR(plat_dev);
256 /* Create platform device for sst machine driver */
257 mdev = platform_device_register_data(dev, mach->drv_name, -1, NULL, 0);
259 dev_err(dev, "Failed to create machine device: %s\n", mach->drv_name);
260 return PTR_ERR(mdev);
263 ret = sst_alloc_drv_context(&ctx, dev, dev_id);
267 /* Fill sst platform data */
269 strcpy(ctx->firmware_name, mach->fw_filename);
271 ret = sst_platform_get_resources(ctx);
275 ret = sst_context_init(ctx);
279 /* need to save shim registers in BYT */
280 ctx->shim_regs64 = devm_kzalloc(ctx->dev, sizeof(*ctx->shim_regs64),
282 if (!ctx->shim_regs64) {
287 sst_configure_runtime_pm(ctx);
288 platform_set_drvdata(pdev, ctx);
292 sst_context_cleanup(ctx);
293 platform_set_drvdata(pdev, NULL);
294 dev_err(ctx->dev, "failed with %d\n", ret);
299 * intel_sst_remove - remove function
301 * @pdev: platform device structure
303 * This function is called by OS when a device is unloaded
304 * This frees the interrupt etc
306 static int sst_acpi_remove(struct platform_device *pdev)
308 struct intel_sst_drv *ctx;
310 ctx = platform_get_drvdata(pdev);
311 sst_context_cleanup(ctx);
312 platform_set_drvdata(pdev, NULL);
316 static struct sst_acpi_mach sst_acpi_bytcr[] = {
317 {"10EC5640", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL,
318 &byt_rvp_platform_data },
322 /* Cherryview-based platforms: CherryTrail and Braswell */
323 static struct sst_acpi_mach sst_acpi_chv[] = {
324 {"10EC5670", "cht-bsw-rt5672", "intel/fw_sst_22a8.bin", "cht-bsw", NULL,
325 &chv_platform_data },
326 {"10EC5645", "cht-bsw-rt5645", "intel/fw_sst_22a8.bin", "cht-bsw", NULL,
327 &chv_platform_data },
328 {"10EC5650", "cht-bsw-rt5645", "intel/fw_sst_22a8.bin", "cht-bsw", NULL,
329 &chv_platform_data },
330 {"193C9890", "cht-bsw-max98090", "intel/fw_sst_22a8.bin", "cht-bsw", NULL,
331 &chv_platform_data },
335 static const struct acpi_device_id sst_acpi_ids[] = {
336 { "80860F28", (unsigned long)&sst_acpi_bytcr},
337 { "808622A8", (unsigned long) &sst_acpi_chv},
341 MODULE_DEVICE_TABLE(acpi, sst_acpi_ids);
343 static struct platform_driver sst_acpi_driver = {
345 .name = "intel_sst_acpi",
346 .acpi_match_table = ACPI_PTR(sst_acpi_ids),
349 .probe = sst_acpi_probe,
350 .remove = sst_acpi_remove,
353 module_platform_driver(sst_acpi_driver);
355 MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine ACPI Driver");
356 MODULE_AUTHOR("Ramesh Babu K V");
357 MODULE_AUTHOR("Omair Mohammed Abdullah");
358 MODULE_LICENSE("GPL v2");