drm/radeon: write AGP_BASE_2 on chips that support it.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index 3a424986e85e..fc0820c2b4b4 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -472,6 +472,8 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev,
 #if __OS_HAS_AGP
         if (dev_priv->flags & RADEON_IS_AGP) {
                 RADEON_WRITE(RADEON_AGP_BASE, (unsigned int)dev->agp->base);
+                if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R200)
+                        RADEON_WRITE(RADEON_AGP_BASE_2, 0);
                 radeon_write_agp_location(dev_priv,
                              (((dev_priv->gart_vm_start - 1 +
                                 dev_priv->gart_size) & 0xffff0000) |