blob: ea48a24a642c97b61dd8d09bfd90744106d59c8a [file] [log] [blame]
Mikael Olssona7df0d62023-01-13 09:56:41 +01001/*
2 * Copyright (c) 2023, Arm Limited. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#include <common/debug.h>
8
9#include "ethosn_big_fw.h"
10
11/* Magic (FourCC) number to identify the big firmware binary */
12#define ETHOSN_BIG_FW_MAGIC ('E' | ('N' << 8) | ('F' << 16) | ('W' << 24))
13
14/* Supported big firmware version */
Rob Hughesb51d05f2023-07-11 13:39:27 +010015#define ETHOSN_BIG_FW_VERSION_MAJOR 12
Mikael Olssona7df0d62023-01-13 09:56:41 +010016
17#define ETHOSN_ARCH_VER_MAJOR_MASK U(0xF000)
18#define ETHOSN_ARCH_VER_MAJOR_SHIFT U(0xC)
19#define ETHOSN_ARCH_VER_MINOR_MASK U(0xF00)
20#define ETHOSN_ARCH_VER_MINOR_SHIFT U(0x8)
21#define ETHOSN_ARCH_VER_REV_MASK U(0xFF)
22
23/* Convert Arm(R) Ethos(TM)-N NPU architecture version to big firmware format */
24#define ETHOSN_BIG_FW_FORMAT_ARCH_VER(arch_ver) \
25 (arch_ver & ETHOSN_ARCH_VER_MAJOR_MASK) << ETHOSN_ARCH_VER_MAJOR_SHIFT | \
26 (arch_ver & ETHOSN_ARCH_VER_MINOR_MASK) << ETHOSN_ARCH_VER_MINOR_SHIFT | \
27 (arch_ver & ETHOSN_ARCH_VER_REV_MASK)
28
29
30bool ethosn_big_fw_verify_header(const struct ethosn_big_fw *big_fw,
31 uint32_t npu_arch_ver)
32{
33 const uint32_t arch_ver = ETHOSN_BIG_FW_FORMAT_ARCH_VER(npu_arch_ver);
34
35 if (big_fw->fw_magic != ETHOSN_BIG_FW_MAGIC) {
36 ERROR("ETHOSN: Unable to find firmware. Invalid magic value: 0x%02x\n",
37 big_fw->fw_magic);
38
39 return false;
40 }
41
42 if (big_fw->fw_ver_major != ETHOSN_BIG_FW_VERSION_MAJOR) {
43 ERROR("ETHOSN: Unsupported firmware version: %u.%u.%u. Expected Version %u.x.x.\n",
44 big_fw->fw_ver_major, big_fw->fw_ver_minor,
45 big_fw->fw_ver_patch, ETHOSN_BIG_FW_VERSION_MAJOR);
46
47 return false;
48 }
49
50 if (big_fw->arch_min > arch_ver || arch_ver > big_fw->arch_max) {
51 ERROR("ETHOSN: Firmware is not compatbile with architecture version: 0x%02x\n",
52 npu_arch_ver);
53 return false;
54 }
55
56 return true;
57}