novueau: try resource 3 if resource 2 is 0 length

This happens on my NV43 PPC

diff --git a/shared-core/nouveau_state.c b/shared-core/nouveau_state.c
index 44f8c1a..1e0587f 100644 (file)
--- a/shared-core/nouveau_state.c
+++ b/shared-core/nouveau_state.c
@@ -66,8 +66,12 @@ int nouveau_firstopen(struct drm_device *dev)
 
        /* map larger RAMIN aperture on NV40 cards */
        if (dev_priv->card_type >= NV_40) {
-               ret = drm_addmap(dev, drm_get_resource_start(dev, 2),
-                                     drm_get_resource_len(dev, 2),
+               int ramin_resource = 2;
+               if (drm_get_resource_len(dev, ramin_resource) == 0)
+                       ramin_resource = 3;
+
+               ret = drm_addmap(dev, drm_get_resource_start(dev, ramin_resource),
+                                     drm_get_resource_len(dev, ramin_resource),
                                      _DRM_REGISTERS,
                                      _DRM_READ_ONLY,
                                      &dev_priv->ramin);