diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/sound/Kconfig | 10 | ||||
-rw-r--r-- | drivers/sound/Makefile | 1 | ||||
-rw-r--r-- | drivers/sound/ivybridge_sound.c | 137 |
3 files changed, 148 insertions, 0 deletions
diff --git a/drivers/sound/Kconfig b/drivers/sound/Kconfig index 0dca6ffe88..4b893f035b 100644 --- a/drivers/sound/Kconfig +++ b/drivers/sound/Kconfig @@ -49,6 +49,16 @@ config SOUND_INTEL_HDA Azalia which was the development code-name. It requires setup information in the device tree (see intel-hda.txt). +config SOUND_IVYBRIDGE + bool "Intel Ivybridge sound support" + depends on SOUND + select SOUND_INTEL_HDA + help + Enable sound output on supported Intel Ivybridge-based boards. This + driver uses Intel's High-definition Audio (HDA) architecture, + sometimes called Azalia. The audio codec is detected using a + semi-automatic mechanism. + config SOUND_MAX98088 bool "Support Maxim max98088 audio codec" depends on I2S diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile index 2e21a0d067..771c116516 100644 --- a/drivers/sound/Makefile +++ b/drivers/sound/Makefile @@ -16,3 +16,4 @@ obj-$(CONFIG_SOUND_MAX98088) += max98088.o maxim_codec.o obj-$(CONFIG_SOUND_MAX98090) += max98090.o maxim_codec.o obj-$(CONFIG_SOUND_MAX98095) += max98095.o maxim_codec.o obj-$(CONFIG_SOUND_INTEL_HDA) += hda_codec.o +obj-$(CONFIG_SOUND_IVYBRIDGE) += ivybridge_sound.o diff --git a/drivers/sound/ivybridge_sound.c b/drivers/sound/ivybridge_sound.c new file mode 100644 index 0000000000..101046f9c2 --- /dev/null +++ b/drivers/sound/ivybridge_sound.c @@ -0,0 +1,137 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Intel HDA audio (Azalia) for ivybridge + * + * Originally from coreboot file bd82x6x/azalia.c + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2008-2009 coresystems GmbH + * Copyright (C) 2011 The ChromiumOS Authors. + * Copyright 2018 Google LLC + */ + +#define LOG_CATEGORY UCLASS_SOUND + +#include <common.h> +#include <dm.h> +#include <hda_codec.h> +#include <pch.h> +#include <sound.h> + +static int bd82x6x_azalia_probe(struct udevice *dev) +{ + struct pci_child_platdata *plat; + struct hda_codec_priv *priv; + struct udevice *pch; + u32 codec_mask; + int conf; + int ret; + + /* Only init after relocation */ + if (!(gd->flags & GD_FLG_RELOC)) + return 0; + + ret = hda_codec_init(dev); + if (ret) { + log_debug("Cannot set up HDA codec (err=%d)\n", ret); + return ret; + } + priv = dev_get_priv(dev); + + ret = uclass_first_device_err(UCLASS_PCH, &pch); + log_debug("PCH %p %s\n", pch, pch->name); + if (ret) + return ret; + + conf = pch_ioctl(pch, PCH_REQ_HDA_CONFIG, NULL, 0); + log_debug("conf = %x\n", conf); + if (conf >= 0) { + dm_pci_clrset_config32(dev, 0x120, 7 << 24 | 0xfe, + 1 << 24 | /* 2 << 24 for server */ + conf); + + dm_pci_clrset_config16(dev, 0x78, 0, 1 << 1); + } else { + log_debug("V1CTL disabled\n"); + } + dm_pci_clrset_config32(dev, 0x114, 0xfe, 0); + + /* Set VCi enable bit */ + dm_pci_clrset_config32(dev, 0x120, 0, 1U << 31); + + /* Enable HDMI codec */ + dm_pci_clrset_config32(dev, 0xc4, 0, 1 << 1); + dm_pci_clrset_config8(dev, 0x43, 0, 1 << 6); + + /* Additional programming steps */ + dm_pci_clrset_config32(dev, 0xc4, 0, 1 << 13); + dm_pci_clrset_config32(dev, 0xc4, 0, 1 << 10); + dm_pci_clrset_config32(dev, 0xd0, 1U << 31, 0); + + /* Additional step on Panther Point */ + plat = dev_get_parent_platdata(dev); + if (plat->device == PCI_DEVICE_ID_INTEL_PANTHERPOINT_HDA) + dm_pci_clrset_config32(dev, 0xc4, 0, 1 << 17); + + dm_pci_write_config8(dev, 0x3c, 0xa); /* unused? */ + + /* Audio Control: Select Azalia mode */ + dm_pci_clrset_config8(dev, 0x40, 0, 1); + dm_pci_clrset_config8(dev, 0x4d, 1 << 7, 0); /* Docking not supported */ + codec_mask = hda_codec_detect(priv->regs); + log_debug("codec_mask = %02x\n", codec_mask); + + if (codec_mask) { + ret = hda_codecs_init(dev, priv->regs, codec_mask); + if (ret) { + log_err("Codec init failed (err=%d)\n", ret); + return ret; + } + } + + /* Enable dynamic clock gating */ + dm_pci_clrset_config8(dev, 0x43, 7, BIT(2) | BIT(0)); + + ret = hda_codec_finish_init(dev); + if (ret) { + log_debug("Cannot set up HDA codec (err=%d)\n", ret); + return ret; + } + + return 0; +} + +static int bd82x6x_azalia_setup(struct udevice *dev) +{ + return 0; +} + +int bd82x6x_azalia_start_beep(struct udevice *dev, int frequency_hz) +{ + return hda_codec_start_beep(dev, frequency_hz); +} + +int bd82x6x_azalia_stop_beep(struct udevice *dev) +{ + return hda_codec_stop_beep(dev); +} + +static const struct sound_ops bd82x6x_azalia_ops = { + .setup = bd82x6x_azalia_setup, + .start_beep = bd82x6x_azalia_start_beep, + .stop_beep = bd82x6x_azalia_stop_beep, +}; + +static const struct udevice_id bd82x6x_azalia_ids[] = { + { .compatible = "intel,hd-audio" }, + { } +}; + +U_BOOT_DRIVER(bd82x6x_azalia_drv) = { + .name = "bd82x6x-hda", + .id = UCLASS_SOUND, + .of_match = bd82x6x_azalia_ids, + .probe = bd82x6x_azalia_probe, + .ops = &bd82x6x_azalia_ops, + .priv_auto_alloc_size = sizeof(struct hda_codec_priv), +}; |