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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/fsp/gb202.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fsp/gb202.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/fsp/gb202.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fsp/gb202.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fsp/gb202.c
new file mode 100644
index 000000000000..3438aac6383e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fsp/gb202.c
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
+ */
+#include "priv.h"
+
+#include <nvhw/drf.h>
+#include <nvhw/ref/gb202/dev_therm.h>
+
+static int
+gb202_fsp_wait_secure_boot(struct nvkm_fsp *fsp)
+{
+ struct nvkm_device *device = fsp->subdev.device;
+ unsigned timeout_ms = 4000;
+
+ do {
+ u32 status = NVKM_RD32(device, NV_THERM, I2CS_SCRATCH, FSP_BOOT_COMPLETE_STATUS);
+
+ if (status == NV_THERM_I2CS_SCRATCH_FSP_BOOT_COMPLETE_STATUS_SUCCESS)
+ return 0;
+
+ usleep_range(1000, 2000);
+ } while (timeout_ms--);
+
+ return -ETIMEDOUT;
+}
+
+static const struct nvkm_fsp_func
+gb202_fsp = {
+ .wait_secure_boot = gb202_fsp_wait_secure_boot,
+ .cot = {
+ .version = 2,
+ .size_hash = 48,
+ .size_pkey = 97,
+ .size_sig = 96,
+ .boot_gsp_fmc = gh100_fsp_boot_gsp_fmc,
+ },
+};
+
+int
+gb202_fsp_new(struct nvkm_device *device,
+ enum nvkm_subdev_type type, int inst, struct nvkm_fsp **pfsp)
+{
+ return nvkm_fsp_new_(&gb202_fsp, device, type, inst, pfsp);
+}