sound/soc/sof/amd/pci-rmb.c

   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         .acp_clkmux_sel = ACP6X_CLKMUX_SEL,
  39         .fusion_dsp_offset = ACP6X_DSP_FUSION_RUNSTALL,
  40         .probe_reg_offset = ACP6X_FUTURE_REG_ACLK_0,
  41 };
  42
  43 static const struct sof_dev_desc rembrandt_desc = {
  44         .machines               = snd_soc_acpi_amd_rmb_sof_machines,
  45         .resindex_lpe_base      = 0,
  46         .resindex_pcicfg_base   = -1,
  47         .resindex_imr_base      = -1,
  48         .irqindex_host_ipc      = -1,
  49         .chip_info              = &rembrandt_chip_info,
  50         .ipc_supported_mask     = BIT(SOF_IPC),
  51         .ipc_default            = SOF_IPC,
  52         .default_fw_path        = {
  53                 [SOF_IPC] = "amd/sof",
  54         },
  55         .default_tplg_path      = {
  56                 [SOF_IPC] = "amd/sof-tplg",
  57         },
  58         .default_fw_filename    = {
  59                 [SOF_IPC] = "sof-rmb.ri",
  60         },
  61         .nocodec_tplg_filename  = "sof-acp.tplg",
  62         .ops                    = &sof_rembrandt_ops,
  63         .ops_init               = sof_rembrandt_ops_init,
  64 };
  65
  66 static int acp_pci_rmb_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
  67 {
  68         unsigned int flag;
  69
  70         if (pci->revision != ACP_RMB_PCI_ID)
  71                 return -ENODEV;
  72
  73         flag = snd_amd_acp_find_config(pci);
  74         if (flag != FLAG_AMD_SOF && flag != FLAG_AMD_SOF_ONLY_DMIC)
  75                 return -ENODEV;
  76
  77         return sof_pci_probe(pci, pci_id);
  78 };
  79
  80 static void acp_pci_rmb_remove(struct pci_dev *pci)
  81 {
  82         sof_pci_remove(pci);
  83 }
  84
  85 /* PCI IDs */
  86 static const struct pci_device_id rmb_pci_ids[] = {
  87                 { PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_PCI_DEV_ID),
  88                 .driver_data = (unsigned long)&rembrandt_desc},
  89                 { 0, }
  90 };
  91 MODULE_DEVICE_TABLE(pci, rmb_pci_ids);
  92
  93 /* pci_driver definition */
  94 static struct pci_driver snd_sof_pci_amd_rmb_driver = {
  95         .name = KBUILD_MODNAME,
  96         .id_table = rmb_pci_ids,
  97         .probe = acp_pci_rmb_probe,
  98         .remove = acp_pci_rmb_remove,
  99 };
 100 module_pci_driver(snd_sof_pci_amd_rmb_driver);
 101
 102 MODULE_LICENSE("Dual BSD/GPL");
 103 MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON);
 104 MODULE_IMPORT_NS(SND_SOC_SOF_PCI_DEV);