soc/amd/picasso/graphics: implement map_oprom_vendev_rev

Picasso, Dali, and Pollock iGPU share the same PCI device ID, but need
different video BIOSes. This checks the vendor & device IDs along with
the revision and selects the correct video BIOS to use.

Also add the second VGA BIOS for Raven2-based SoCs and change all VGA
BIOS IDs to the format including the revision number.

Since SeaBIOS still expects the CBFS file name without the revision ID,
it won't find the VBIOS any more. As a temporary workaround add the
VBIOS for the silicon it will run on as VGA_BIOS_DGPU_*.

Change-Id: I8f48ecc3fbffddd21d1f830fbee26a09ac351e1c
Signed-off-by: Martin Roth <martinroth@chromium.org>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://chromium-review.googlesource.com/2040455
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Matt Papageorge <matt.papageorge@amd.corp-partner.google.com>
Reviewed-by: Justin Frodsham <justin.frodsham@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41562
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/soc/amd/picasso/graphics.c b/src/soc/amd/picasso/graphics.c
new file mode 100644
index 0000000000..047559cbf3
--- /dev/null
+++ b/src/soc/amd/picasso/graphics.c
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <device/pci_rom.h>
+#include <soc/cpu.h>
+#include <soc/soc_util.h>
+
+void map_oprom_vendev_rev(u32 *vendev, u8 *rev)
+{
+	if (*vendev != PICASSO_VBIOS_VID_DID)
+		return;
+
+	/* Check if the RV2 video bios needs to be used instead of the RV1/PCO one */
+	if (soc_is_raven2()) {
+		printk(BIOS_NOTICE, "Using RV2 VBIOS.\n");
+		*vendev = RAVEN2_VBIOS_VID_DID;
+		*rev = RAVEN2_VBIOS_REV;
+	} else {
+		printk(BIOS_NOTICE, "Using RV1/PCO VBIOS.\n");
+		*rev = PICASSO_VBIOS_REV;
+	}
+}