1 // SPDX-License-Identifier: GPL-2.0-only
3  *  sst_pci.c - SST (LPE) driver init file for pci enumeration.
5  *  Copyright (C) 2008-14	Intel Corp
15 #include <linux/pci.h>
21 #include "../sst-mfld-platform.h"
27 	struct pci_dev *pci = ctx->pci;  in sst_platform_get_resources()  local
29 	ret = pci_request_regions(pci, SST_DRV_NAME);  in sst_platform_get_resources()
35 	if (ctx->dev_id == PCI_DEVICE_ID_INTEL_SST_TNG) {  in sst_platform_get_resources()
36 		ctx->ddr_base = pci_resource_start(pci, 0);  in sst_platform_get_resources()
38 		ddr_base = relocate_imr_addr_mrfld(ctx->ddr_base);  in sst_platform_get_resources()
39 		if (!ctx->pdata->lib_info) {  in sst_platform_get_resources()
40 			dev_err(ctx->dev, "lib_info pointer NULL\n");  in sst_platform_get_resources()
41 			ret = -EINVAL;  in sst_platform_get_resources()
44 		if (ddr_base != ctx->pdata->lib_info->mod_base) {  in sst_platform_get_resources()
45 			dev_err(ctx->dev,  in sst_platform_get_resources()
47 			ret = -EINVAL;  in sst_platform_get_resources()
50 		ctx->ddr_end = pci_resource_end(pci, 0);  in sst_platform_get_resources()
52 		ctx->ddr = pcim_iomap(pci, 0,  in sst_platform_get_resources()
53 					pci_resource_len(pci, 0));  in sst_platform_get_resources()
54 		if (!ctx->ddr) {  in sst_platform_get_resources()
55 			ret = -EINVAL;  in sst_platform_get_resources()
58 		dev_dbg(ctx->dev, "sst: DDR Ptr %p\n", ctx->ddr);  in sst_platform_get_resources()
60 		ctx->ddr = NULL;  in sst_platform_get_resources()
63 	ctx->shim_phy_add = pci_resource_start(pci, 1);  in sst_platform_get_resources()
64 	ctx->shim = pcim_iomap(pci, 1, pci_resource_len(pci, 1));  in sst_platform_get_resources()
65 	if (!ctx->shim) {  in sst_platform_get_resources()
66 		ret = -EINVAL;  in sst_platform_get_resources()
69 	dev_dbg(ctx->dev, "SST Shim Ptr %p\n", ctx->shim);  in sst_platform_get_resources()
72 	ctx->mailbox_add = pci_resource_start(pci, 2);  in sst_platform_get_resources()
73 	ctx->mailbox = pcim_iomap(pci, 2, pci_resource_len(pci, 2));  in sst_platform_get_resources()
74 	if (!ctx->mailbox) {  in sst_platform_get_resources()
75 		ret = -EINVAL;  in sst_platform_get_resources()
78 	dev_dbg(ctx->dev, "SRAM Ptr %p\n", ctx->mailbox);  in sst_platform_get_resources()
81 	ctx->iram_end = pci_resource_end(pci, 3);  in sst_platform_get_resources()
82 	ctx->iram_base = pci_resource_start(pci, 3);  in sst_platform_get_resources()
83 	ctx->iram = pcim_iomap(pci, 3, pci_resource_len(pci, 3));  in sst_platform_get_resources()
84 	if (!ctx->iram) {  in sst_platform_get_resources()
85 		ret = -EINVAL;  in sst_platform_get_resources()
88 	dev_dbg(ctx->dev, "IRAM Ptr %p\n", ctx->iram);  in sst_platform_get_resources()
91 	ctx->dram_end = pci_resource_end(pci, 4);  in sst_platform_get_resources()
92 	ctx->dram_base = pci_resource_start(pci, 4);  in sst_platform_get_resources()
93 	ctx->dram = pcim_iomap(pci, 4, pci_resource_len(pci, 4));  in sst_platform_get_resources()
94 	if (!ctx->dram) {  in sst_platform_get_resources()
95 		ret = -EINVAL;  in sst_platform_get_resources()
98 	dev_dbg(ctx->dev, "DRAM Ptr %p\n", ctx->dram);  in sst_platform_get_resources()
100 	pci_release_regions(pci);  in sst_platform_get_resources()
105  * intel_sst_probe - PCI probe function
107  * @pci:	PCI device structure
108  * @pci_id: PCI device ID structure
111 static int intel_sst_probe(struct pci_dev *pci,  in intel_sst_probe()  argument
116 	struct sst_platform_info *sst_pdata = pci->dev.platform_data;  in intel_sst_probe()
118 	dev_dbg(&pci->dev, "Probe for DID %x\n", pci->device);  in intel_sst_probe()
119 	ret = sst_alloc_drv_context(&sst_drv_ctx, &pci->dev, pci->device);  in intel_sst_probe()
123 	sst_drv_ctx->pdata = sst_pdata;  in intel_sst_probe()
124 	sst_drv_ctx->irq_num = pci->irq;  in intel_sst_probe()
125 	snprintf(sst_drv_ctx->firmware_name, sizeof(sst_drv_ctx->firmware_name),  in intel_sst_probe()
127 			sst_drv_ctx->dev_id, ".bin");  in intel_sst_probe()
134 	ret = pcim_enable_device(pci);  in intel_sst_probe()
136 		dev_err(sst_drv_ctx->dev,  in intel_sst_probe()
140 	sst_drv_ctx->pci = pci_dev_get(pci);  in intel_sst_probe()
145 	pci_set_drvdata(pci, sst_drv_ctx);  in intel_sst_probe()
152 	dev_err(sst_drv_ctx->dev, "Probe failed with %d\n", ret);  in intel_sst_probe()
157  * intel_sst_remove - PCI remove function
159  * @pci:	PCI device structure
164 static void intel_sst_remove(struct pci_dev *pci)  in intel_sst_remove()  argument
166 	struct intel_sst_drv *sst_drv_ctx = pci_get_drvdata(pci);  in intel_sst_remove()
169 	pci_dev_put(sst_drv_ctx->pci);  in intel_sst_remove()
170 	pci_release_regions(pci);  in intel_sst_remove()
171 	pci_set_drvdata(pci, NULL);  in intel_sst_remove()
174 /* PCI Routines */
194 MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine PCI Driver");