From: Ajit Kumar Pandey AjitKumar.Pandey@amd.com
This patch initializes ACP HW block to support SOF on AMD Renoir platform.
Signed-off-by: Ajit Kumar Pandey AjitKumar.Pandey@amd.com Reviewed-by: Bard Liao bard.liao@intel.com Reviewed-by: Kai Vehmanen kai.vehmanen@linux.intel.com Signed-off-by: Daniel Baluta daniel.baluta@nxp.com --- sound/soc/sof/Kconfig | 1 + sound/soc/sof/Makefile | 1 + sound/soc/sof/amd/Kconfig | 30 ++++++++ sound/soc/sof/amd/Makefile | 11 +++ sound/soc/sof/amd/acp-dsp-offset.h | 20 +++++ sound/soc/sof/amd/acp.c | 118 +++++++++++++++++++++++++++++ sound/soc/sof/amd/acp.h | 36 +++++++++ sound/soc/sof/amd/renoir.c | 34 +++++++++ 8 files changed, 251 insertions(+) create mode 100644 sound/soc/sof/amd/Kconfig create mode 100644 sound/soc/sof/amd/Makefile create mode 100644 sound/soc/sof/amd/acp-dsp-offset.h create mode 100644 sound/soc/sof/amd/acp.c create mode 100644 sound/soc/sof/amd/acp.h create mode 100644 sound/soc/sof/amd/renoir.c
diff --git a/sound/soc/sof/Kconfig b/sound/soc/sof/Kconfig index 041c54639c4d..68571bf2585e 100644 --- a/sound/soc/sof/Kconfig +++ b/sound/soc/sof/Kconfig @@ -223,6 +223,7 @@ config SND_SOC_SOF_PROBE_WORK_QUEUE When selected, the probe is handled in two steps, for example to avoid lockdeps if request_module is used in the probe.
+source "sound/soc/sof/amd/Kconfig" source "sound/soc/sof/imx/Kconfig" source "sound/soc/sof/intel/Kconfig" source "sound/soc/sof/xtensa/Kconfig" diff --git a/sound/soc/sof/Makefile b/sound/soc/sof/Makefile index 06e5f49f7ee8..011abfa0fd82 100644 --- a/sound/soc/sof/Makefile +++ b/sound/soc/sof/Makefile @@ -22,4 +22,5 @@ obj-$(CONFIG_SND_SOC_SOF_PCI_DEV) += snd-sof-pci.o
obj-$(CONFIG_SND_SOC_SOF_INTEL_TOPLEVEL) += intel/ obj-$(CONFIG_SND_SOC_SOF_IMX_TOPLEVEL) += imx/ +obj-$(CONFIG_SND_SOC_SOF_AMD_TOPLEVEL) += amd/ obj-$(CONFIG_SND_SOC_SOF_XTENSA) += xtensa/ diff --git a/sound/soc/sof/amd/Kconfig b/sound/soc/sof/amd/Kconfig new file mode 100644 index 000000000000..400dd5a24ae6 --- /dev/null +++ b/sound/soc/sof/amd/Kconfig @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +# This file is provided under a dual BSD/GPLv2 license. When using or +# redistributing this file, you may do so under either license. +# +# Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. + +config SND_SOC_SOF_AMD_TOPLEVEL + tristate "SOF support for AMD audio DSPs" + depends on X86 || COMPILE_TEST + help + This adds support for Sound Open Firmware for AMD platforms. + Say Y if you have such a device. + If unsure select "N". + +if SND_SOC_SOF_AMD_TOPLEVEL + +config SND_SOC_SOF_AMD_COMMON + tristate + select SND_SOC_SOF + help + This option is not user-selectable but automatically handled by + 'select' statements at a higher level + +config SND_SOC_SOF_AMD_RENOIR + tristate "SOF support for RENOIR" + select SND_SOC_SOF_AMD_COMMON + help + Select this option for SOF support on AMD Renoir platform + +endif diff --git a/sound/soc/sof/amd/Makefile b/sound/soc/sof/amd/Makefile new file mode 100644 index 000000000000..ac2ecd21be5f --- /dev/null +++ b/sound/soc/sof/amd/Makefile @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +# This file is provided under a dual BSD/GPLv2 license. When using or +# redistributing this file, you may do so under either license. +# +# Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. + +snd-sof-amd-acp-objs := acp.o +snd-sof-amd-renoir-objs := renoir.o + +obj-$(CONFIG_SND_SOC_SOF_AMD_COMMON) += snd-sof-amd-acp.o +obj-$(CONFIG_SND_SOC_SOF_AMD_RENOIR) +=snd-sof-amd-renoir.o diff --git a/sound/soc/sof/amd/acp-dsp-offset.h b/sound/soc/sof/amd/acp-dsp-offset.h new file mode 100644 index 000000000000..2cc2a9a842c5 --- /dev/null +++ b/sound/soc/sof/amd/acp-dsp-offset.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. + * + * Author: Ajit Kumar Pandey AjitKumar.Pandey@amd.com + */ + +#ifndef _ACP_DSP_IP_OFFSET_H +#define _ACP_DSP_IP_OFFSET_H + +#define ACP_SOFT_RESET 0x1000 + +/* Registers from ACP_PGFSM block */ +#define ACP_PGFSM_CONTROL 0x141C +#define ACP_PGFSM_STATUS 0x1420 + +#endif diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c new file mode 100644 index 000000000000..687a67419335 --- /dev/null +++ b/sound/soc/sof/amd/acp.c @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +// +// This file is provided under a dual BSD/GPLv2 license. When using or +// redistributing this file, you may do so under either license. +// +// Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. +// +// Authors: Vijendar Mukunda Vijendar.Mukunda@amd.com +// Ajit Kumar Pandey AjitKumar.Pandey@amd.com + +/* + * Hardware interface for generic AMD ACP processor + */ + +#include <linux/io.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "../ops.h" +#include "acp.h" +#include "acp-dsp-offset.h" + +static int acp_power_on(struct snd_sof_dev *sdev) +{ + unsigned int val; + int ret; + + val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_PGFSM_STATUS); + + if (val == ACP_POWERED_ON) + return 0; + + if (val & ACP_PGFSM_STATUS_MASK) + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_PGFSM_CONTROL, + ACP_PGFSM_CNTL_POWER_ON_MASK); + + ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_PGFSM_STATUS, val, !val, + ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US); + if (ret < 0) + dev_err(sdev->dev, "timeout in ACP_PGFSM_STATUS read\n"); + + return ret; +} + +static int acp_reset(struct snd_sof_dev *sdev) +{ + unsigned int val; + int ret; + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, ACP_ASSERT_RESET); + + ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, val, + val & ACP_SOFT_RESET_DONE_MASK, + ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US); + if (ret < 0) { + dev_err(sdev->dev, "timeout asserting reset\n"); + return ret; + } + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, ACP_RELEASE_RESET); + + ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, val, !val, + ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US); + if (ret < 0) + dev_err(sdev->dev, "timeout in releasing reset\n"); + + return ret; +} + +static int acp_init(struct snd_sof_dev *sdev) +{ + int ret; + + /* power on */ + ret = acp_power_on(sdev); + if (ret) { + dev_err(sdev->dev, "ACP power on failed\n"); + return ret; + } + /* Reset */ + return acp_reset(sdev); +} + +int amd_sof_acp_probe(struct snd_sof_dev *sdev) +{ + struct pci_dev *pci = to_pci_dev(sdev->dev); + struct acp_dev_data *adata; + unsigned int addr; + + adata = devm_kzalloc(sdev->dev, sizeof(struct acp_dev_data), + GFP_KERNEL); + if (!adata) + return -ENOMEM; + + adata->dev = sdev; + addr = pci_resource_start(pci, ACP_DSP_BAR); + sdev->bar[ACP_DSP_BAR] = devm_ioremap(sdev->dev, addr, pci_resource_len(pci, ACP_DSP_BAR)); + if (!sdev->bar[ACP_DSP_BAR]) { + dev_err(sdev->dev, "ioremap error\n"); + return -ENXIO; + } + + pci_set_master(pci); + + sdev->pdata->hw_pdata = adata; + + return acp_init(sdev); +} +EXPORT_SYMBOL_NS(amd_sof_acp_probe, SND_SOC_SOF_AMD_COMMON); + +int amd_sof_acp_remove(struct snd_sof_dev *sdev) +{ + return acp_reset(sdev); +} +EXPORT_SYMBOL_NS(amd_sof_acp_remove, SND_SOC_SOF_AMD_COMMON); + +MODULE_DESCRIPTION("AMD ACP sof driver"); +MODULE_LICENSE("Dual BSD/GPL"); diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h new file mode 100644 index 000000000000..c7ac8f9941d5 --- /dev/null +++ b/sound/soc/sof/amd/acp.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. + * + * Author: Ajit Kumar Pandey AjitKumar.Pandey@amd.com + */ + +#ifndef __SOF_AMD_ACP_H +#define __SOF_AMD_ACP_H + +#define ACP_DSP_BAR 0 + +#define ACP_REG_POLL_INTERVAL 500 +#define ACP_REG_POLL_TIMEOUT_US 2000 + +#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01 +#define ACP_PGFSM_STATUS_MASK 0x03 +#define ACP_POWERED_ON 0x00 +#define ACP_ASSERT_RESET 0x01 +#define ACP_RELEASE_RESET 0x00 +#define ACP_SOFT_RESET_DONE_MASK 0x00010001 + +/* Common device data struct for ACP devices */ +struct acp_dev_data { + struct snd_sof_dev *dev; +}; + +/* ACP device probe/remove */ +int amd_sof_acp_probe(struct snd_sof_dev *sdev); +int amd_sof_acp_remove(struct snd_sof_dev *sdev); + +extern const struct snd_sof_dsp_ops sof_renoir_ops; +#endif diff --git a/sound/soc/sof/amd/renoir.c b/sound/soc/sof/amd/renoir.c new file mode 100644 index 000000000000..3d1dc6c2fa9b --- /dev/null +++ b/sound/soc/sof/amd/renoir.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +// +// This file is provided under a dual BSD/GPLv2 license. When using or +// redistributing this file, you may do so under either license. +// +// Copyright(c) 2021 Advanced Micro Devices, Inc. +// +// Authors: Ajit Kumar Pandey AjitKumar.Pandey@amd.com + +/* + * Hardware interface for Audio DSP on Renoir platform + */ + +#include <linux/platform_device.h> +#include <linux/module.h> + +#include "../ops.h" +#include "acp.h" + +/* AMD Renoir DSP ops */ +const struct snd_sof_dsp_ops sof_renoir_ops = { + /* probe and remove */ + .probe = amd_sof_acp_probe, + .remove = amd_sof_acp_remove, + + /* Register IO */ + .write = sof_io_write, + .read = sof_io_read, +}; +EXPORT_SYMBOL(sof_renoir_ops); + +MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON); +MODULE_DESCRIPTION("RENOIR SOF Driver"); +MODULE_LICENSE("Dual BSD/GPL");