soc/amd/picasso: Add display identification and vbios name

Add Picasso's Device ID and default filename.

Only a single Device ID is documented for Picasso so remove the oprom
remapper function.

Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Change-Id: Iaf43d7c8da41beb05b58c494f0a6814f8f571b18
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34422
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig
index 33e8c81..6d0a3ef 100644
--- a/src/soc/amd/picasso/Kconfig
+++ b/src/soc/amd/picasso/Kconfig
@@ -111,14 +111,14 @@
 
 config VGA_BIOS_ID
 	string
-	default "1002,98e4"
+	default "1002,15d8"
 	help
 	  The default VGA BIOS PCI vendor/device ID should be set to the
 	  result of the map_oprom_vendev() function in northbridge.c.
 
 config VGA_BIOS_FILE
 	string
-	default "3rdparty/blobs/soc/amd/picasso/VBIOS.bin"
+	default "3rdparty/blobs/soc/amd/picasso/PicassoGenericVbios.bin"
 
 config S3_VGA_ROM_RUN
 	bool
diff --git a/src/soc/amd/picasso/include/soc/pci_devs.h b/src/soc/amd/picasso/include/soc/pci_devs.h
index d6887f9..acde455 100644
--- a/src/soc/amd/picasso/include/soc/pci_devs.h
+++ b/src/soc/amd/picasso/include/soc/pci_devs.h
@@ -42,7 +42,7 @@
 /* Internal Graphics */
 #define GFX_DEV			0x1
 #define GFX_FUNC		0
-#define GFX_DEVID		0x98e4 /* subject to SKU/OPN variation */
+#define GFX_DEVID		0x15d8
 #define GFX_DEVFN		PCI_DEVFN(GFX_DEV, GFX_FUNC)
 #define SOC_GFX_DEV		_SOC_DEV(GFX_DEV, GFX_FUNC)
 
diff --git a/src/soc/amd/picasso/northbridge.c b/src/soc/amd/picasso/northbridge.c
index 36135f9..08807f3 100644
--- a/src/soc/amd/picasso/northbridge.c
+++ b/src/soc/amd/picasso/northbridge.c
@@ -310,20 +310,3 @@
 
 	assign_resources(dev->link_list);
 }
-
-/*********************************************************************
- * Change the vendor / device IDs to match the generic VBIOS header. *
- *********************************************************************/
-u32 map_oprom_vendev(u32 vendev)
-{
-	u32 new_vendev;
-	new_vendev =
-		((vendev >= 0x100298e0) && (vendev <= 0x100298ef)) ?
-				0x100298e0 : vendev;
-
-	if (vendev != new_vendev)
-		printk(BIOS_NOTICE, "Mapping PCI device %8x to %8x\n",
-				vendev, new_vendev);
-
-	return new_vendev;
-}