drm/nva3/fbram: restrict training pattern setup to GT218

It doesn't look like the others have the registers.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c

@@ -335,6 +335,7 @@ nva3_ram_init(struct nouveau_object *object)
 	/* prepare for ddr link training, and load training patterns */
 	switch (ram->base.type) {
 	case NV_MEM_TYPE_DDR3: {
+		if (nv_device(pfb)->chipset == 0xa8) {
 			static const u32 pattern[16] = {
 				0xaaaaaaaa, 0xcccccccc, 0xdddddddd, 0xeeeeeeee,
 				0x00000000, 0x11111111, 0x44444444, 0xdddddddd,
@@ -352,6 +353,7 @@ nva3_ram_init(struct nouveau_object *object)
 				nv_wr32(pfb, 0x10f920, pattern[i % 16]);
 			}
 		}
+	}
 		break;
 	default:
 		break;