1 files changed, 38 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nv40_mc.c b/drivers/gpu/drm/nouveau/nv40_mc.c
new file mode 100644
index 000000000000..2a3495e848e9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv40_mc.c
@@ -0,0 +1,38 @@
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+
+int
+nv40_mc_init(struct drm_device *dev)
+{
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+        uint32_t tmp;
+
+        /* Power up everything, resetting each individual unit will
+         * be done later if needed.
+         */
+        nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
+
+        switch (dev_priv->chipset) {
+        case 0x44:
+        case 0x46: /* G72 */
+        case 0x4e:
+        case 0x4c: /* C51_G7X */
+                tmp = nv_rd32(dev, NV40_PFB_020C);
+                nv_wr32(dev, NV40_PMC_1700, tmp);
+                nv_wr32(dev, NV40_PMC_1704, 0);
+                nv_wr32(dev, NV40_PMC_1708, 0);
+                nv_wr32(dev, NV40_PMC_170C, tmp);
+                break;
+        default:
+                break;
+        }
+
+        return 0;
+}
+
+void
+nv40_mc_takedown(struct drm_device *dev)
+{
+}