drm/nv40: allow cold-booting of nv4x chipsets

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 61d9322..620cbd9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -6265,7 +6265,7 @@
 	/* ... unless card isn't POSTed already */
 	if (!nouveau_bios_posted(dev)) {
 		NV_INFO(dev, "Adaptor not initialised\n");
-		if (dev_priv->card_type < NV_50) {
+		if (dev_priv->card_type < NV_40) {
 			NV_ERROR(dev, "Unable to POST this chipset\n");
 			return -ENODEV;
 		}