drivers: Intel: remove Intel XTOS drivers

Now that Intel cAVS2.5 has been migrated to use native Zephyr
drivers, we have no need to keep the Intel specific XTOS
drivers in the tree anymore.

Adjust board configuration files to not refer to removed
Kconfig options.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

app/boards/intel_adsp_ace15_mtpm.conf

@@ -1,11 +1,6 @@
 CONFIG_METEORLAKE=y
 CONFIG_IPC_MAJOR_4=y
 
-# turn off SOF drivers
-CONFIG_INTEL_DMIC=n
-CONFIG_INTEL_DMIC_NHLT=n
-CONFIG_INTEL_SSP=n
-CONFIG_INTEL_ALH=n
 CONFIG_COMP_SRC=y
 CONFIG_COMP_SRC_IPC4_FULL_MATRIX=y
 CONFIG_COMP_DRC=y

app/boards/intel_adsp_ace20_lnl.conf

@@ -1,11 +1,6 @@
 CONFIG_LUNARLAKE=y
 CONFIG_IPC_MAJOR_4=y
 
-# turn off SOF drivers
-CONFIG_INTEL_DMIC=n
-CONFIG_INTEL_DMIC_NHLT=n
-CONFIG_INTEL_SSP=n
-CONFIG_INTEL_ALH=n
 CONFIG_COMP_SRC=y
 
 CONFIG_COMP_SRC_IPC4_FULL_MATRIX=y

app/boards/intel_adsp_cavs25.conf

@@ -1,10 +1,6 @@
 CONFIG_TIGERLAKE=y
-CONFIG_INTEL_DMIC=y
 CONFIG_COMP_CHAIN_DMA=y
-CONFIG_DMIC_HW_IOCLK=38400000
-CONFIG_INTEL_SSP=y
 CONFIG_AMS=y
-CONFIG_INTEL_ALH=y
 CONFIG_LP_MEMORY_BANKS=1
 CONFIG_HP_MEMORY_BANKS=30
 CONFIG_MM_DRV=y

app/boards/intel_adsp_cavs25_tgph.conf

@@ -1,5 +1,4 @@
 CONFIG_TIGERLAKE=y
-CONFIG_INTEL_DMIC=y
 CONFIG_COMP_CHAIN_DMA=y
 CONFIG_LP_MEMORY_BANKS=1
 CONFIG_HP_MEMORY_BANKS=30

src/drivers/CMakeLists.txt

@@ -4,10 +4,6 @@ if(CONFIG_IMX)
 	add_subdirectory(imx)
 endif()
 
-if(CONFIG_INTEL)
-	add_subdirectory(intel)
-endif()
-
 if(CONFIG_AMD)
 	add_subdirectory(amd)
 endif()

src/drivers/intel/Kconfig

@@ -1,211 +1,10 @@
 # SPDX-License-Identifier: BSD-3-Clause
 
-config INTEL_HDA
-	bool "Intel HDA driver"
-	depends on CAVS
-	default n
-	help
-	  Select this to enable Intel HDA driver. The HDA driver provides
-	  interface for host and HD-Audio data transfers.
-
+# TODO: to be removed once Zephyr SSP driver has been updated
+#       not to depend on this
 config INTEL_MN
 	bool
 	depends on CAVS
 	default n
 	help
 	  Select this if the platform supports M/N dividers.
-
-config INTEL_MCLK
-	bool
-	depends on CAVS
-	default n
-	help
-	  Select this to enable driver for Intel MCLK and M/N dividers.
-
-config INTEL_SSP
-	bool "Intel SSP driver"
-	depends on CAVS
-	select INTEL_MCLK
-	default n
-	help
-	  Select this to enable Intel Synchronous Serial Port (SSP) driver.
-
-config INTEL_ALH
-	bool "Intel ALH driver"
-	depends on CAVS
-	default n
-	help
-	  Select this to enable Intel ALH driver.
-	  The ALH is an intermediary device, which acts as a hub and provides an
-	  abstracted support for numerous sound interfaces (e.g. SoundWire).
-
-config INTEL_DMIC
-	bool "Intel DMIC driver"
-	depends on CAVS
-	select NUMBERS_NORM
-	select NUMBERS_VECTOR_FIND
-	select MATH_DECIBELS
-	default n
-	help
-	  Select this to enable Intel DMIC driver. The DMIC driver provides
-	  as DAI the SoC direct attach digital microphones interface.
-
-if INTEL_DMIC
-
-config DMIC_HW_IOCLK
-	int "Set DMIC hw IO clock"
-	default 0
-	help
-	  Hardware specific DMIC IO clock speed defined by each platform.
-	  May be overridden from hardware values for simulation purposes.
-
-choice
-	prompt "Driver operation mode"
-	default INTEL_DMIC_TPLG_PARAMS
-        help
-          The driver can support two operation modes.
-          - A HW registers dump blob that is passed via IPC
-          - DAI tokens those describe the use case PCM format
-            and PDM bus and microphone parameters
-
-config INTEL_DMIC_NHLT
-       bool "Use NHLT DMIC blob"
-       help
-         All registers configuration is retrieved from blob. The
-	 number of channels, sample rate, and PCM format are
-	 defined in the blob and there are no runtime made
-	 configuration choices.
-
-config INTEL_DMIC_TPLG_PARAMS
-       bool "Use parameters from topology"
-       help
-         All registers confifguration is computed on the fly
-	 based on use case and microphone datasheet parameters
-	 and topology defined PCM format. The parameters are
-	 easy to to customize in the topology.
-
-endchoice
-
-if INTEL_DMIC_TPLG_PARAMS
-
-choice
-	prompt "FIR decimation coefficients set"
-	default INTEL_DMIC_FIR_FULL
-
-config INTEL_DMIC_FIR_FULL
-	bool "Full set"
-	select INTEL_DMIC_FIR_DECIMATE_BY_2
-	select INTEL_DMIC_FIR_DECIMATE_BY_3
-	select INTEL_DMIC_FIR_DECIMATE_BY_4
-	select INTEL_DMIC_FIR_DECIMATE_BY_5
-	select INTEL_DMIC_FIR_DECIMATE_BY_6
-	select INTEL_DMIC_FIR_DECIMATE_BY_8
-	select INTEL_DMIC_FIR_DECIMATE_BY_10
-	select INTEL_DMIC_FIR_DECIMATE_BY_12
-	help
-	  This option adds to previous all currently defined FIR
-	  coefficients sets to support sample rates 8 - 96 kHz with
-	  several microphone clock rates. The tables increase the size
-	  of the driver so this option should not be used in minimal
-	  systems.
-
-config INTEL_DMIC_FIR_LOW_MEMORY
-	bool "Small set"
-	select INTEL_DMIC_FIR_DECIMATE_BY_2
-	select INTEL_DMIC_FIR_DECIMATE_BY_6
-	help
-	  This option is used to minimize driver footprint but
-	  preserve support for 48 kHz and 16 kHz sample rates
-	  at typical 2.4 MHz microphone clock rate. The option
-	  enables decimation factors 2 and 6.
-
-config INTEL_DMIC_FIR_CUSTOM
-	bool "Custom set"
-	help
-	  This option is used to select each supported decimation
-	  factor.
-
-endchoice
-
-menu "Decimation factors"
-	visible if INTEL_DMIC_FIR_CUSTOM
-
-config INTEL_DMIC_FIR_DECIMATE_BY_2
-	bool "FIR decimate by 2"
-	default n
-	help
-	  This includes FIR coefficients to decimate by 2 into the build. It
-	  is commonly used for 48 kHz capture with 2.4 MHz microphone clock.
-	  Decimate by 2 in FIR gives good bandwidth vs. Nyquist and narrow
-	  transition region due to lower FIR order need compared to higher
-	  decimation factors.
-
-config INTEL_DMIC_FIR_DECIMATE_BY_3
-	bool "FIR decimate by 3"
-	default n
-	help
-	  This includes FIR coefficients to decimate by 3 into the build.
-	  Decimation by 3 in FIR is useful with microphone clock and sample
-	  rate combinations where a 3 is the lowest factor of the oversampling
-	  ratio. Having this low prime decimation factor for FIR enabled is
-	  useful when decimation by 2 is not possible.
-
-config INTEL_DMIC_FIR_DECIMATE_BY_4
-	bool "FIR decimate by 4"
-	default n
-	help
-	  This includes FIR coefficients to decimate by 4 into the build.
-	  Decimation by 4 in FIR is useful in some cases with high microphone
-	  clock rates due to max. decimation factor limit of CIC. In such
-	  cases decimation by 2 may not be usable.
-
-config INTEL_DMIC_FIR_DECIMATE_BY_5
-	bool "FIR decimate by 5"
-	default n
-	help
-	  This includes FIR coefficients to decimate by 5 into the build.
-	  Decimation by 5 in FIR is useful with microphone clock and sample
-	  rate combinations where a 5 is the lowest factor of the oversampling
-	  ratio.
-
-config INTEL_DMIC_FIR_DECIMATE_BY_6
-	bool "FIR decimate by 6"
-	default n
-	help
-	  This includes FIR coefficients to decimate by 6 into the build. It
-	  is commonly used for 16 kHz capture from secondary FIFO while
-	  primary FIFO is configured for 48 kHz rate.
-
-config INTEL_DMIC_FIR_DECIMATE_BY_8
-	bool "FIR decimate by 8"
-	default n
-	help
-	  This includes FIR coefficients to decimate by 8 into the build.
-	  The high FIR decimation factors are needed for high microphone clock
-	  rates due to max. decimation factor limitation of CIC. Also dual
-	  FIFO configurations may need for one FIR decimation such high
-	  decimation factor.
-
-config INTEL_DMIC_FIR_DECIMATE_BY_10
-	bool "FIR decimate by 10"
-	default n
-	help
-	  This includes FIR coefficients to decimate by 10 into the build.
-	  The high FIR decimation factors are needed for high microphone clock
-	  rates due to max. decimation factor limitation of CIC. Also dual
-	  FIFO configurations may need for one FIR decimation such high
-	  decimation factor.
-
-config INTEL_DMIC_FIR_DECIMATE_BY_12
-	bool "FIR decimate by 12"
-	default n
-	help
-	  This includes FIR coefficients to decimate by 12 into the build. It
-	  is used for 16 kHz capture for secondary FIFO while the primary
-	  FIFO is configured for 96 kHz.
-
-endmenu # "Decimation factors"
-
-endif
-
-endif # INTEL_DMIC