Add addw2 smart amp init

Change-Id: Icbd640dd9584f0c58833dffc9a46a6afb4787abc

src/mainboard/system76/addw2/Kconfig

@@ -4,6 +4,7 @@ config BOARD_SPECIFIC_OPTIONS
 	def_bool y
 	select BOARD_ROMSIZE_KB_16384
 	select DRIVERS_I2C_HID
+	select DRIVERS_I2C_TAS5825M
 	select DRIVERS_SYSTEM76_EC
 	select EC_ACPI
 	select HAVE_ACPI_RESUME

src/mainboard/system76/addw2/Makefile.inc

@@ -1,3 +1,4 @@
 bootblock-y += bootblock.c
 ramstage-y += ramstage.c
 ramstage-y += hda_verb.c
+ramstage-y += tas5825m.c

src/mainboard/system76/addw2/devicetree.cb

@@ -319,7 +319,11 @@ chip soc/intel/cannonlake
 		device pci 1f.1 off end # P2SB
 		device pci 1f.2 off end # Power Management Controller
 		device pci 1f.3 on  end # Intel HDA
-		device pci 1f.4 on  end # SMBus
+		device pci 1f.4 on
+			chip drivers/i2c/tas5825m
+				device i2c 4e on end # (8bit address: 0x9c)
+			end # tas5825m
+		end # SMBus
 		device pci 1f.5 on  end # PCH SPI
 		device pci 1f.6 off end # GbE
 	end

src/mainboard/system76/addw2/hda_verb.c

@@ -24,7 +24,11 @@ const u32 cim_verb_data[] = {
 	AZALIA_PIN_CFG(0, 0x1e, 0x04451150),
 };
 
-const u32 pc_beep_verbs[] = {};
+const u32 pc_beep_verbs[] = {
+    // Enable DMIC microphone on ALC1220
+    0x02050036,
+    0x02042a6a,
+};
 
 AZALIA_ARRAY_SIZES;