xref: /openbmc/qemu/hw/mips/fw_cfg.c (revision c2387413)
1 /*
2  * QEMU fw_cfg helpers (MIPS specific)
3  *
4  * Copyright (c) 2020 Lemote, Inc.
5  *
6  * Author:
7  *   Huacai Chen (chenhc@lemote.com)
8  *
9  * SPDX-License-Identifier: GPL-2.0-or-later
10  *
11  * This work is licensed under the terms of the GNU GPL, version 2 or later.
12  * See the COPYING file in the top-level directory.
13  */
14 
15 #include "qemu/osdep.h"
16 #include "hw/mips/fw_cfg.h"
17 #include "hw/nvram/fw_cfg.h"
18 
19 const char *fw_cfg_arch_key_name(uint16_t key)
20 {
21     static const struct {
22         uint16_t key;
23         const char *name;
24     } fw_cfg_arch_wellknown_keys[] = {
25         {FW_CFG_MACHINE_VERSION, "machine_version"},
26         {FW_CFG_CPU_FREQ, "cpu_frequency"},
27     };
28 
29     for (size_t i = 0; i < ARRAY_SIZE(fw_cfg_arch_wellknown_keys); i++) {
30         if (fw_cfg_arch_wellknown_keys[i].key == key) {
31             return fw_cfg_arch_wellknown_keys[i].name;
32         }
33     }
34     return NULL;
35 }
36