soc/intel/alderlake and mb: Drop PchHdaAudioLink*Enable UPDs from chip.h

FSP uses PchHdaAudioLink{Hda|Dmic|Ssp|Sndw}Enable UPDs to configure
GPIO pads for audio. However, mainboard is expected to perform all
GPIO configration in coreboot and hence these UPDs must be set to
0. There is no need to expose these UPDs in chip.h and provide
mainboard an option to set these in devicetree.

This change drops PchHdaAudioLink{Hda|Dmic|Ssp|Sndw}Enable UPDs from
chip.h and the corresponding devicetree in mainboards. Currently,
shadowmountain already set these UPDs to 0, whereas adlrvp set these
to 1. But all the ADL boards are correctly configuring the GPIO pads
for audio, so this change should not impact audio for any of these
boards.

BUG=b:183482000
TEST=adlrvp and shadowmountain build successfully.

Change-Id: I90e4eb5cc242a789800f4c9f8c71e9d8c8a2becf
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52559
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

5 files changed, 10 insertions, 32 deletions

diff --git a/src/mainboard/intel/adlrvp/devicetree.cb b/src/mainboard/intel/adlrvp/devicetree.cb
index 4604c27928..39453d9806 100644
--- a/src/mainboard/intel/adlrvp/devicetree.cb
+++ b/src/mainboard/intel/adlrvp/devicetree.cb
@@ -171,11 +171,6 @@ chip soc/intel/alderlake
 
 	# HD Audio
 	register "PchHdaDspEnable" = "1"
-	register "PchHdaAudioLinkHdaEnable" = "0"
-	register "PchHdaAudioLinkDmicEnable[0]" = "1"
-	register "PchHdaAudioLinkDmicEnable[1]" = "1"
-	register "PchHdaAudioLinkSndwEnable[0]" = "1"
-	register "PchHdaAudioLinkSndwEnable[1]" = "1"
 	# iDisp-Link T-Mode 0: 2T, 2: 4T, 3: 8T, 4: 16T
 	register "PchHdaIDispLinkTmode" = "2"
 	# iDisp-Link Freq 4: 96MHz, 3: 48MHz.
diff --git a/src/mainboard/intel/adlrvp/devicetree_m.cb b/src/mainboard/intel/adlrvp/devicetree_m.cb
index a1edf6dd73..30aee7a7fc 100644
--- a/src/mainboard/intel/adlrvp/devicetree_m.cb
+++ b/src/mainboard/intel/adlrvp/devicetree_m.cb
@@ -121,11 +121,6 @@ chip soc/intel/alderlake
 
 	# HD Audio
 	register "PchHdaDspEnable" = "1"
-	register "PchHdaAudioLinkHdaEnable" = "0"
-	register "PchHdaAudioLinkDmicEnable[0]" = "1"
-	register "PchHdaAudioLinkDmicEnable[1]" = "1"
-	register "PchHdaAudioLinkSndwEnable[0]" = "1"
-	register "PchHdaAudioLinkSndwEnable[1]" = "1"
 	# iDisp-Link T-Mode 0: 2T, 2: 4T, 3: 8T, 4: 16T
 	register "PchHdaIDispLinkTmode" = "3"
 	# iDisp-Link Freq 4: 96MHz, 3: 48MHz.
diff --git a/src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb b/src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb
index 9464f10fe0..b06e540b84 100644
--- a/src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb
+++ b/src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb
@@ -111,13 +111,6 @@ chip soc/intel/alderlake
 
 	# HD Audio
 	register "PchHdaDspEnable" = "1"
-	register "PchHdaAudioLinkHdaEnable" = "0"
-	register "PchHdaAudioLinkDmicEnable[0]" = "0"
-	register "PchHdaAudioLinkDmicEnable[1]" = "0"
-	register "PchHdaAudioLinkSspEnable[0]" = "0"
-	register "PchHdaAudioLinkSspEnable[1]" = "0"
-	register "PchHdaAudioLinkSndwEnable[0]" = "0"
-	register "PchHdaAudioLinkSndwEnable[1]" = "0"
 	# iDisp-Link T-Mode 0: 2T, 2: 4T, 3: 8T, 4: 16T
 	register "PchHdaIDispLinkTmode" = "3"
 	# iDisp-Link Freq 4: 96MHz, 3: 48MHz.
diff --git a/src/soc/intel/alderlake/chip.h b/src/soc/intel/alderlake/chip.h
index f1e07412b7..e0d0b6074f 100644
--- a/src/soc/intel/alderlake/chip.h
+++ b/src/soc/intel/alderlake/chip.h
@@ -17,10 +17,6 @@
 #include <soc/usb.h>
 #include <stdint.h>
 
-#define MAX_HD_AUDIO_DMIC_LINKS 2
-#define MAX_HD_AUDIO_SNDW_LINKS 4
-#define MAX_HD_AUDIO_SSP_LINKS  6
-
 struct soc_intel_alderlake_config {
 
 	/* Common struct containing soc config data required by common code */
@@ -117,10 +113,6 @@ struct soc_intel_alderlake_config {
 
 	/* Audio related */
 	uint8_t PchHdaDspEnable;
-	uint8_t PchHdaAudioLinkHdaEnable;
-	uint8_t PchHdaAudioLinkDmicEnable[MAX_HD_AUDIO_DMIC_LINKS];
-	uint8_t PchHdaAudioLinkSspEnable[MAX_HD_AUDIO_SSP_LINKS];
-	uint8_t PchHdaAudioLinkSndwEnable[MAX_HD_AUDIO_SNDW_LINKS];
 	uint8_t PchHdaIDispLinkTmode;
 	uint8_t PchHdaIDispLinkFrequency;
 	uint8_t PchHdaIDispCodecDisconnect;
diff --git a/src/soc/intel/alderlake/romstage/fsp_params.c b/src/soc/intel/alderlake/romstage/fsp_params.c
index 385246734e..74d127ea98 100644
--- a/src/soc/intel/alderlake/romstage/fsp_params.c
+++ b/src/soc/intel/alderlake/romstage/fsp_params.c
@@ -131,13 +131,16 @@ static void soc_memory_init_params(FSP_M_CONFIG *m_cfg,
 	m_cfg->PchHdaEnable = is_dev_enabled(dev);
 
 	m_cfg->PchHdaDspEnable = config->PchHdaDspEnable;
-	m_cfg->PchHdaAudioLinkHdaEnable = config->PchHdaAudioLinkHdaEnable;
-	memcpy(m_cfg->PchHdaAudioLinkDmicEnable, config->PchHdaAudioLinkDmicEnable,
-		sizeof(m_cfg->PchHdaAudioLinkDmicEnable));
-	memcpy(m_cfg->PchHdaAudioLinkSspEnable, config->PchHdaAudioLinkSspEnable,
-		sizeof(m_cfg->PchHdaAudioLinkSspEnable));
-	memcpy(m_cfg->PchHdaAudioLinkSndwEnable, config->PchHdaAudioLinkSndwEnable,
-		sizeof(m_cfg->PchHdaAudioLinkSndwEnable));
+	/*
+	 * All the PchHdaAudioLink{Hda|Dmic|Ssp|Sndw}Enable UPDs are used by FSP only to
+	 * configure GPIO pads for audio. Mainboard is expected to perform all GPIO
+	 * configuration in coreboot and hence these UPDs are set to 0 to skip FSP GPIO
+	 * configuration for audio pads.
+	 */
+	m_cfg->PchHdaAudioLinkHdaEnable = 0;
+	memset(m_cfg->PchHdaAudioLinkDmicEnable, 0, sizeof(m_cfg->PchHdaAudioLinkDmicEnable));
+	memset(m_cfg->PchHdaAudioLinkSspEnable, 0, sizeof(m_cfg->PchHdaAudioLinkSspEnable));
+	memset(m_cfg->PchHdaAudioLinkSndwEnable, 0, sizeof(m_cfg->PchHdaAudioLinkSndwEnable));
 	m_cfg->PchHdaIDispLinkTmode = config->PchHdaIDispLinkTmode;
 	m_cfg->PchHdaIDispLinkFrequency = config->PchHdaIDispLinkFrequency;
 	m_cfg->PchHdaIDispCodecDisconnect = config->PchHdaIDispCodecDisconnect;