tegra: camera: rtcpu: fix boot timeouts

The t186-sce boot time sometimes exceeds 2000 milliseconds. The undue
boot time is because the memory bandwidth problems. During the boot
the DRAM image is read twice (once when copying, once when calculating
SHA1).

Calculate time from deasserting resets to the first mailbox handshake
with camrtc.

Add a dedicated bandwidth manager client for camrtc. Request for extra
memory bandwidth during boot time.

Retry camrtc boot if it fails.

Report failed boot handshake correctly to the platform, avoid
corruption.

Bug 2305627

Change-Id: Ia96e369ee1b09d6298268f7bd309db1c8f326564
Signed-off-by: Pekka Pessi <ppessi@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1803895
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Semi Malinen <smalinen@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/platform/tegra/emc_bwmgr.h b/include/linux/platform/tegra/emc_bwmgr.h
index 64d6f6f89..cbc79b03b 100644
--- a/include/linux/platform/tegra/emc_bwmgr.h
+++ b/include/linux/platform/tegra/emc_bwmgr.h
@@ -50,6 +50,7 @@ enum tegra_bwmgr_client_id {
         TEGRA_BWMGR_CLIENT_ISPB,
         TEGRA_BWMGR_CLIENT_CAMERA,
         TEGRA_BWMGR_CLIENT_CAMERA_NON_ISO,
+        TEGRA_BWMGR_CLIENT_CAMRTC,
         TEGRA_BWMGR_CLIENT_ISOMGR,
         TEGRA_BWMGR_CLIENT_THERMAL_CAP,
         TEGRA_BWMGR_CLIENT_VIC,