+config SOUND_I8254
+ bool "Intel i8254 timer / beeper"
+ depends on SOUND
+ help
+ This enables support for a beeper that uses the i8254 timer chip.
+ This can emit beeps at a fixed frequency. It is possible to control
+ the length of the beeps, by turning a beep on, waiting for a period
+ of time, then turning it off.
+
+ This is quite an old feature, called PIT (Programmable Interval
+ Timer), but is nonetheless still available on modern x86 machines.
+
+config SOUND_INTEL_HDA
+ bool "Intel HDA audio codec"
+ depends on SOUND
+ help
+ Most Intel chips have an HDA (High-definition audio) codec which can
+ be used by U-Boot to play simple beeps. This is also sometimes called
+ 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 I2S_TEGRA
+ bool "Enable I2S support for Nvidia Tegra SoCs"
+ depends on I2S
+ select TEGRA124_DMA
+ help
+ Nvidia Tegra SoCs support several I2S interfaces for sending audio
+ data to an audio codec. This option enables support for this,
+ using one of the available audio codec drivers.
+
+config SOUND_MAX98088
+ bool "Support Maxim max98088 audio codec"
+ depends on I2S
+ help
+ Enable the max98088 audio codec. This is connected via I2S for
+ audio data and I2C for codec control. At present it only works
+ with the Samsung I2S driver.
+
+config SOUND_MAX98090
+ bool "Support Maxim max98090 audio codec"
+ depends on I2S
+ help
+ Enable the max98090 audio codec. This is connected via I2S for
+ audio data and I2C for codec control. At present it only works
+ with the Samsung I2S driver.
+