fsp2_0: Gather Kconfig declarations

Move more Kconfig declarations to drivers/intel/fsp2_0/ and document
them properly. This way, we don't have to repeat dependencies and have
the prompts in a common place. We can also easily hide the prompt for
the header path in case the FSP repository is used.

SP platforms were skipped as their Kconfig is too weird but they
shouldn't hold other platforms back.

Change-Id: Iba5af49bcd15427e9eb9b111e6c4cc9bcb7adcae
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40125
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>

src/drivers/intel/fsp2_0/Kconfig

@@ -31,13 +31,36 @@ config PLATFORM_USES_FSP2_1
 
 if PLATFORM_USES_FSP2_0
 
+config HAVE_INTEL_FSP_REPO
+	bool
+	help
+	  Select this, if the FSP binaries for the platform are public
+	  and available in 3rdparty/fsp/. When selecting this option, the
+	  platform must also set FSP_HEADER_PATH and FSP_FD_PATH correctly.
+
 config FSP_USE_REPO
 	bool "Use binaries of the Intel FSP repository on GitHub"
 	depends on HAVE_INTEL_FSP_REPO
 	default y
 	help
-	  When selecting this option, the SoC must set FSP_HEADER_PATH
-	  and FSP_FD_PATH correctly so FSP splitting works.
+	  Select this option to use the default FSP headers and binaries
+	  found in the IntelFsp GitHub repository at
+
+	    https://github.com/IntelFsp/FSP/
+
+	  If unsure, say Y.
+
+config FSP_HEADER_PATH
+	string "Location of FSP headers" if !FSP_USE_REPO
+	help
+	  Include directory with the FSP ABI header files.
+
+config FSP_FD_PATH
+	string
+	depends on FSP_USE_REPO
+	help
+	  Path to the FSP FD file that contains the individual FSP-T, FSP-M
+	  and FSP-S binaries.
 
 config ADD_FSP_BINARIES
 	bool "Add Intel FSP 2.0 binaries to CBFS" if !FSP_USE_REPO

src/soc/intel/Kconfig

@@ -38,9 +38,3 @@ config INTEL_TOP_SWAP_FIT_ENTRY_FMAP_REG
 	  than the one in non-topswap bootblock. This string will be passed
 	  onto ifittool (-A -n option). ifittool will not parse the region for MCU
 	  entries, and only locate the region and insert its address into FIT.
-
-config HAVE_INTEL_FSP_REPO
-	bool
-	help
-	  Select this, if the FSP binaries for the platform are public available
-	  in 3rdparty/fsp.

src/soc/intel/apollolake/Kconfig

@@ -182,13 +182,10 @@ config VERSTAGE_ADDR
 	  The base address (in CAR) where verstage should be linked
 
 config FSP_HEADER_PATH
-	string "Location of FSP headers"
 	default "src/vendorcode/intel/fsp/fsp2_0/glk" if SOC_INTEL_GLK
 	default "3rdparty/fsp/ApolloLakeFspBinPkg/Include/"
 
 config FSP_FD_PATH
-	string
-	depends on FSP_USE_REPO
 	default "3rdparty/fsp/ApolloLakeFspBinPkg/FspBin/Fsp.fd"
 
 config FSP_M_ADDR

src/soc/intel/cannonlake/Kconfig

@@ -310,14 +310,11 @@ config USE_CANNONLAKE_FSP_CAR
 endchoice
 
 config FSP_HEADER_PATH
-	string "Location of FSP headers"
 	default "3rdparty/fsp/CoffeeLakeFspBinPkg/Include/" if SOC_INTEL_COFFEELAKE || SOC_INTEL_WHISKEYLAKE
 	default "3rdparty/fsp/CometLakeFspBinPkg/CometLake1/Include/" if SOC_INTEL_COMETLAKE
 	default "src/vendorcode/intel/fsp/fsp2_0/cannonlake/" if SOC_INTEL_CANNONLAKE
 
 config FSP_FD_PATH
-	string
-	depends on FSP_USE_REPO
 	default "3rdparty/fsp/CoffeeLakeFspBinPkg/Fsp.fd" if SOC_INTEL_COFFEELAKE || SOC_INTEL_WHISKEYLAKE
 	default "3rdparty/fsp/CometLakeFspBinPkg/CometLake1/FSP.fd" if SOC_INTEL_COMETLAKE
 

src/soc/intel/denverton_ns/Kconfig

@@ -81,12 +81,9 @@ config FSP_S_ADDR
 	  The memory location of the Intel FSP-S binary for this platform.
 
 config FSP_HEADER_PATH
-	string
 	default "3rdparty/fsp/DenvertonNSFspBinPkg/Include/"
 
 config FSP_FD_PATH
-	string
-	depends on FSP_USE_REPO
 	default "3rdparty/fsp/DenvertonNSFspBinPkg/FspBin/DenvertonNSFsp.fd"
 
 # CAR memory layout on DENVERTON_NS hardware:

src/soc/intel/icelake/Kconfig

@@ -179,12 +179,9 @@ config CBFS_SIZE
 	default 0x200000
 
 config FSP_HEADER_PATH
-	string "Location of FSP headers"
 	default "3rdparty/fsp/IceLakeFspBinPkg/Include"
 
 config FSP_FD_PATH
-	string
-	depends on FSP_USE_REPO
 	default "3rdparty/fsp/IceLakeFspBinPkg/Fsp.fd"
 
 config SOC_INTEL_ICELAKE_DEBUG_CONSENT

src/soc/intel/jasperlake/Kconfig

@@ -184,12 +184,9 @@ config CBFS_SIZE
 	default 0x200000
 
 config FSP_HEADER_PATH
-	string "Location of FSP headers"
 	default "src/vendorcode/intel/fsp/fsp2_0/jasperlake/"
 
 config FSP_FD_PATH
-	string
-	depends on FSP_USE_REPO
 	default "3rdparty/fsp/JasperLakeFspBinPkg/Fsp.fd"
 
 config SOC_INTEL_JASPERLAKE_DEBUG_CONSENT

src/soc/intel/skylake/Kconfig

@@ -222,14 +222,11 @@ config NHLT_DA7219
 	  Include DSP firmware settings for DA7219 headset codec.
 
 config FSP_HEADER_PATH
-	string "Location of FSP headers"
 	# Use KabylakeFsp for both Skylake and Kabylake as it supports both.
 	# SkylakeFsp is FSP 1.1 and therefore incompatible.
 	default "3rdparty/fsp/KabylakeFspBinPkg/Include/"
 
 config FSP_FD_PATH
-	string
-	depends on FSP_USE_REPO
 	default "3rdparty/fsp/KabylakeFspBinPkg/Fsp.fd"
 
 config MAX_ROOT_PORTS

src/soc/intel/tigerlake/Kconfig

@@ -184,12 +184,9 @@ config CBFS_SIZE
 	default 0x200000
 
 config FSP_HEADER_PATH
-	string "Location of FSP headers"
 	default "src/vendorcode/intel/fsp/fsp2_0/tigerlake/"
 
 config FSP_FD_PATH
-	string
-	depends on FSP_USE_REPO
 	default "3rdparty/fsp/TigerLakeFspBinPkg/Fsp.fd"
 
 config SOC_INTEL_TIGERLAKE_DEBUG_CONSENT