diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c
index 6707b8edc086c819c7188cb8211428f482ac9316..29e6f73dfd7e76482b96537a0886444c37e76319 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c
@@ -107,9 +107,12 @@ gm20b_secboot_new(struct nvkm_device *device, int index,
 	struct gm200_secboot *gsb;
 	struct nvkm_acr *acr;
 
-	acr = acr_r352_new(BIT(NVKM_SECBOOT_FALCON_FECS));
+	acr = acr_r352_new(BIT(NVKM_SECBOOT_FALCON_FECS) |
+			   BIT(NVKM_SECBOOT_FALCON_PMU));
 	if (IS_ERR(acr))
 		return PTR_ERR(acr);
+	/* Support the initial GM20B firmware release without PMU */
+	acr->optional_falcons = BIT(NVKM_SECBOOT_FALCON_PMU);
 
 	gsb = kzalloc(sizeof(*gsb), GFP_KERNEL);
 	if (!gsb) {
@@ -137,3 +140,6 @@ MODULE_FIRMWARE("nvidia/gm20b/gr/sw_ctx.bin");
 MODULE_FIRMWARE("nvidia/gm20b/gr/sw_nonctx.bin");
 MODULE_FIRMWARE("nvidia/gm20b/gr/sw_bundle_init.bin");
 MODULE_FIRMWARE("nvidia/gm20b/gr/sw_method_init.bin");
+MODULE_FIRMWARE("nvidia/gm20b/pmu/desc.bin");
+MODULE_FIRMWARE("nvidia/gm20b/pmu/image.bin");
+MODULE_FIRMWARE("nvidia/gm20b/pmu/sig.bin");