soc/intel/skylake: devicetree: introduce PchHdaVcType fsp parameter

Make the the FSP Parameter PchHdaVcType a devicetree setting and make
use of it in the devicetrees of all boards that currently set it.

Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: Ibafc3b6bd2495658f2bd634218042ec413a89f5e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35542
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Maxim Polyakov <max.senia.poliak@gmail.com>

src/mainboard/asrock/h110m/devicetree.cb

@@ -55,6 +55,7 @@ chip soc/intel/skylake
 	register "PmTimerDisabled" = "0"
 	register "EnableAzalia" = "1"
 	register "DspEnable" = "0"
+	register "PchHdaVcType" = "Vc1"
 
 	register "pirqa_routing" = "PCH_IRQ11"
 	register "pirqb_routing" = "PCH_IRQ10"

src/mainboard/asrock/h110m/ramstage.c

@@ -24,6 +24,4 @@ void mainboard_silicon_init_params(FSP_SIL_UPD *params)
 	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
 
 	params->CdClock = 3;
-	/* Enable Virtual Channel 1 */
-	params->PchHdaVcType = 0x1;
 }

src/mainboard/intel/kblrvp/ramstage.c

@@ -25,9 +25,6 @@ void mainboard_silicon_init_params(FSP_SIL_UPD *params)
 	 * dependencies during hardware initialization. */
 	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
 	params->CdClock = 3;
-
-	/* Enable Virtual Channel 1 */
-	params->PchHdaVcType = 0x1;
 }
 
 static void ioexpander_init(void *unused)

src/mainboard/intel/kblrvp/variants/baseboard/devicetree.cb

@@ -30,6 +30,7 @@ chip soc/intel/skylake
 	register "SkipExtGfxScan" = "1"
 	register "Device4Enable" = "1"
 	register "SaGv" = "SaGv_Enabled"
+	register "PchHdaVcType" = "Vc1"
 
 	register "pirqa_routing" = "PCH_IRQ11"
 	register "pirqb_routing" = "PCH_IRQ10"

src/mainboard/supermicro/x11-lga1151-series/ramstage.c

@@ -20,7 +20,4 @@ void mainboard_silicon_init_params(FSP_SIL_UPD *params)
 	/* Configure pads prior to SiliconInit() in case there's any
 	 * dependencies during hardware initialization. */
 	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
-
-	/* This must be one, otherwise FSP crashes ... */
-	params->PchHdaVcType = 0x1;
 }

src/mainboard/supermicro/x11-lga1151-series/variants/x11ssh-tf/overridetree.cb

@@ -30,6 +30,9 @@ chip soc/intel/skylake
 	register "PcieRpEnable[8]" = "1"
 	register "PcieRpClkReqSupport[8]" = "0"
 
+	# FIXME: find out why FSP crashes without this
+	register "PchHdaVcType" = "Vc1"
+
 	device domain 0 on
 		device pci 01.0 on end	# unused
 		device pci 01.1 on	# PCIE Slot (JPCIE1)

src/soc/intel/skylake/chip.h

@@ -208,6 +208,12 @@ struct soc_intel_skylake_config {
 	u8 EnableAzalia;
 	u8 DspEnable;
 
+	/* HDA Virtual Channel Type Select */
+	enum {
+		Vc0,
+		Vc1,
+	} PchHdaVcType;
+
 	/*
 	 * I/O Buffer Ownership:
 	 * 0: HD-A Link

src/soc/intel/skylake/chip_fsp20.c

@@ -361,6 +361,7 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd)
 	params->PchIshEnable = dev ? dev->enabled : 0;
 
 	params->PchHdaEnable = config->EnableAzalia;
+	params->PchHdaVcType = config->PchHdaVcType;
 	params->PchHdaIoBufferOwnership = config->IoBufferOwnership;
 	params->PchHdaDspEnable = config->DspEnable;
 	params->Device4Enable = config->Device4Enable;