diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index ad72295403a8..518617e06a48 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1874,7 +1874,7 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
 	case CHIP_SUMO:
 		rdev->config.evergreen.num_ses = 1;
 		rdev->config.evergreen.max_pipes = 4;
-		rdev->config.evergreen.max_tile_pipes = 2;
+		rdev->config.evergreen.max_tile_pipes = 4;
 		if (rdev->pdev->device == 0x9648)
 			rdev->config.evergreen.max_simds = 3;
 		else if ((rdev->pdev->device == 0x9647) ||
@@ -1963,7 +1963,7 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
 		break;
 	case CHIP_CAICOS:
 		rdev->config.evergreen.num_ses = 1;
-		rdev->config.evergreen.max_pipes = 4;
+		rdev->config.evergreen.max_pipes = 2;
 		rdev->config.evergreen.max_tile_pipes = 2;
 		rdev->config.evergreen.max_simds = 2;
 		rdev->config.evergreen.max_backends = 1 * rdev->config.evergreen.num_ses;