xref: /openbmc/linux/sound/soc/sof/amd/pci-rmb.c (revision 7e1fe5d9)
1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2022 Advanced Micro Devices, Inc. All rights reserved.
7 //
8 // Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
9 
10 /*.
11  * PCI interface for Rembrandt ACP device
12  */
13 
14 #include <linux/module.h>
15 #include <linux/pci.h>
16 #include <linux/platform_device.h>
17 #include <sound/sof.h>
18 #include <sound/soc-acpi.h>
19 
20 #include "../ops.h"
21 #include "../sof-pci-dev.h"
22 #include "../../amd/mach-config.h"
23 #include "acp.h"
24 #include "acp-dsp-offset.h"
25 
26 #define ACP6x_REG_START		0x1240000
27 #define ACP6x_REG_END		0x125C000
28 #define ACP6X_FUTURE_REG_ACLK_0	0x1854
29 
30 static const struct sof_amd_acp_desc rembrandt_chip_info = {
31 	.rev		= 6,
32 	.host_bridge_id = HOST_BRIDGE_RMB,
33 	.pgfsm_base	= ACP6X_PGFSM_BASE,
34 	.ext_intr_stat	= ACP6X_EXT_INTR_STAT,
35 	.dsp_intr_base	= ACP6X_DSP_SW_INTR_BASE,
36 	.sram_pte_offset = ACP6X_SRAM_PTE_OFFSET,
37 	.hw_semaphore_offset = ACP6X_AXI2DAGB_SEM_0,
38 	.fusion_dsp_offset = ACP6X_DSP_FUSION_RUNSTALL,
39 	.probe_reg_offset = ACP6X_FUTURE_REG_ACLK_0,
40 };
41 
42 static const struct sof_dev_desc rembrandt_desc = {
43 	.machines		= snd_soc_acpi_amd_rmb_sof_machines,
44 	.resindex_lpe_base	= 0,
45 	.resindex_pcicfg_base	= -1,
46 	.resindex_imr_base	= -1,
47 	.irqindex_host_ipc	= -1,
48 	.chip_info		= &rembrandt_chip_info,
49 	.ipc_supported_mask     = BIT(SOF_IPC),
50 	.ipc_default            = SOF_IPC,
51 	.default_fw_path	= {
52 		[SOF_IPC] = "amd/sof",
53 	},
54 	.default_tplg_path	= {
55 		[SOF_IPC] = "amd/sof-tplg",
56 	},
57 	.default_fw_filename	= {
58 		[SOF_IPC] = "sof-rmb.ri",
59 	},
60 	.nocodec_tplg_filename	= "sof-acp.tplg",
61 	.ops			= &sof_rembrandt_ops,
62 	.ops_init		= sof_rembrandt_ops_init,
63 };
64 
acp_pci_rmb_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)65 static int acp_pci_rmb_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
66 {
67 	unsigned int flag;
68 
69 	if (pci->revision != ACP_RMB_PCI_ID)
70 		return -ENODEV;
71 
72 	flag = snd_amd_acp_find_config(pci);
73 	if (flag != FLAG_AMD_SOF && flag != FLAG_AMD_SOF_ONLY_DMIC)
74 		return -ENODEV;
75 
76 	return sof_pci_probe(pci, pci_id);
77 };
78 
acp_pci_rmb_remove(struct pci_dev * pci)79 static void acp_pci_rmb_remove(struct pci_dev *pci)
80 {
81 	sof_pci_remove(pci);
82 }
83 
84 /* PCI IDs */
85 static const struct pci_device_id rmb_pci_ids[] = {
86 		{ PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_PCI_DEV_ID),
87 		.driver_data = (unsigned long)&rembrandt_desc},
88 		{ 0, }
89 };
90 MODULE_DEVICE_TABLE(pci, rmb_pci_ids);
91 
92 /* pci_driver definition */
93 static struct pci_driver snd_sof_pci_amd_rmb_driver = {
94 	.name = KBUILD_MODNAME,
95 	.id_table = rmb_pci_ids,
96 	.probe = acp_pci_rmb_probe,
97 	.remove = acp_pci_rmb_remove,
98 };
99 module_pci_driver(snd_sof_pci_amd_rmb_driver);
100 
101 MODULE_LICENSE("Dual BSD/GPL");
102 MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON);
103 MODULE_IMPORT_NS(SND_SOC_SOF_PCI_DEV);
104