gpu: nvgpu: Add flag for running preos ucode

Add per-platform flag run_preos, which indicates whether to run
preos ucode or not. Leave it to false for all known boards.

Bug 1799537
Bug 1815139

Change-Id: I1818970b0f70f636277443d6de199d3683fc565a
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1233410
(cherry picked from commit 8bea05dbfa64af88587edb8927a8ec71c6b0d807)
Reviewed-on: http://git-master/r/1239956
GVS: Gerrit_Virtual_Submit

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gm206/bios_gm206.c b/drivers/gpu/nvgpu/gm206/bios_gm206.c
index aa40f410..2f1a32d3 100644
--- a/drivers/gpu/nvgpu/gm206/bios_gm206.c
+++ b/drivers/gpu/nvgpu/gm206/bios_gm206.c
@@ -918,10 +918,12 @@ static int gm206_bios_init(struct gk20a *g)
                 return err;
         }
 
-        err = gm206_bios_preos(g);
-        if (err) {
-                gk20a_err(g->dev, "pre-os failed");
-                return err;
+        if (platform->run_preos) {
+                err = gm206_bios_preos(g);
+                if (err) {
+                        gk20a_err(g->dev, "pre-os failed");
+                        return err;
+                }
         }
 
         return 0;