gb202.c

 1/* SPDX-License-Identifier: MIT
 2 *
 3 * Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
 4 */
 5#include "priv.h"
 6
 7#include <nvhw/drf.h>
 8#include <nvhw/ref/gb202/dev_therm.h>
 9
10static int
11gb202_fsp_wait_secure_boot(struct nvkm_fsp *fsp)
12{
13	struct nvkm_device *device = fsp->subdev.device;
14	unsigned timeout_ms = 4000;
15
16	do {
17		u32 status = NVKM_RD32(device, NV_THERM, I2CS_SCRATCH, FSP_BOOT_COMPLETE_STATUS);
18
19		if (status == NV_THERM_I2CS_SCRATCH_FSP_BOOT_COMPLETE_STATUS_SUCCESS)
20			return 0;
21
22		usleep_range(1000, 2000);
23	} while (timeout_ms--);
24
25	return -ETIMEDOUT;
26}
27
28static const struct nvkm_fsp_func
29gb202_fsp = {
30	.wait_secure_boot = gb202_fsp_wait_secure_boot,
31	.cot = {
32		.version = 2,
33		.size_hash = 48,
34		.size_pkey = 97,
35		.size_sig = 96,
36		.boot_gsp_fmc = gh100_fsp_boot_gsp_fmc,
37	},
38};
39
40int
41gb202_fsp_new(struct nvkm_device *device,
42	      enum nvkm_subdev_type type, int inst, struct nvkm_fsp **pfsp)
43{
44	return nvkm_fsp_new_(&gb202_fsp, device, type, inst, pfsp);
45}