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