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
 30static const struct sof_amd_acp_desc rembrandt_chip_info = {
 31	.pgfsm_base	= ACP6X_PGFSM_BASE,
 32	.ext_intr_stat	= ACP6X_EXT_INTR_STAT,
 33	.dsp_intr_base	= ACP6X_DSP_SW_INTR_BASE,
 34	.acp_error_stat = ACP6X_ERROR_STATUS,
 35	.acp_sw0_i2s_err_reason = ACP6X_SW0_I2S_ERROR_REASON,
 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
 42static 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_TYPE_3),
 50	.ipc_default            = SOF_IPC_TYPE_3,
 51	.default_fw_path	= {
 52		[SOF_IPC_TYPE_3] = "amd/sof",
 53	},
 54	.default_tplg_path	= {
 55		[SOF_IPC_TYPE_3] = "amd/sof-tplg",
 56	},
 57	.default_fw_filename	= {
 58		[SOF_IPC_TYPE_3] = "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
 65static 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
 79static void acp_pci_rmb_remove(struct pci_dev *pci)
 80{
 81	sof_pci_remove(pci);
 82}
 83
 84/* PCI IDs */
 85static 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};
 90MODULE_DEVICE_TABLE(pci, rmb_pci_ids);
 91
 92/* pci_driver definition */
 93static 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};
 99module_pci_driver(snd_sof_pci_amd_rmb_driver);
100
101MODULE_LICENSE("Dual BSD/GPL");
102MODULE_DESCRIPTION("REMBRANDT SOF Driver");
103MODULE_IMPORT_NS("SND_SOC_SOF_AMD_COMMON");
104MODULE_IMPORT_NS("SND_SOC_SOF_PCI_DEV");