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>

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
index 503e09b..6eb97f1 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
@@ -335,21 +335,23 @@ 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: {
-               static const u32 pattern[16] = {
-                       0xaaaaaaaa, 0xcccccccc, 0xdddddddd, 0xeeeeeeee,
-                       0x00000000, 0x11111111, 0x44444444, 0xdddddddd,
-                       0x33333333, 0x55555555, 0x77777777, 0x66666666,
-                       0x99999999, 0x88888888, 0xeeeeeeee, 0xbbbbbbbb,
-               };
-
-               nv_wr32(pfb, 0x100538, 0x10001ff6); /*XXX*/
-               nv_wr32(pfb, 0x1005a8, 0x0000ffff);
-               nv_mask(pfb, 0x10f800, 0x00000001, 0x00000001);
-               for (i = 0; i < 0x30; i++) {
-                       nv_wr32(pfb, 0x10f8c0, (i << 8) | i);
-                       nv_wr32(pfb, 0x10f8e0, (i << 8) | i);
-                       nv_wr32(pfb, 0x10f900, pattern[i % 16]);
-                       nv_wr32(pfb, 0x10f920, pattern[i % 16]);
+               if (nv_device(pfb)->chipset == 0xa8) {
+                       static const u32 pattern[16] = {
+                               0xaaaaaaaa, 0xcccccccc, 0xdddddddd, 0xeeeeeeee,
+                               0x00000000, 0x11111111, 0x44444444, 0xdddddddd,
+                               0x33333333, 0x55555555, 0x77777777, 0x66666666,
+                               0x99999999, 0x88888888, 0xeeeeeeee, 0xbbbbbbbb,
+                       };
+
+                       nv_wr32(pfb, 0x100538, 0x10001ff6); /*XXX*/
+                       nv_wr32(pfb, 0x1005a8, 0x0000ffff);
+                       nv_mask(pfb, 0x10f800, 0x00000001, 0x00000001);
+                       for (i = 0; i < 0x30; i++) {
+                               nv_wr32(pfb, 0x10f8c0, (i << 8) | i);
+                               nv_wr32(pfb, 0x10f8e0, (i << 8) | i);
+                               nv_wr32(pfb, 0x10f900, pattern[i % 16]);
+                               nv_wr32(pfb, 0x10f920, pattern[i % 16]);
+                       }
                }
        }
                break;