projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 0044c42e SR |
2 | /* |
| 3 | * (C) Copyright 2012 | |
| 4 | * Stefan Roese, DENX Software Engineering, sr@denx.de. | |
| 0044c42e | 5 | */ |
| c1cd21db LM |
6 | #ifndef _BOOTCOUNT_H__ |
| 7 | #define _BOOTCOUNT_H__ | |
| 0044c42e SR |
8 | |
| 9 | #include <common.h> | |
| 10 | #include <asm/io.h> | |
| 11 | #include <asm/byteorder.h> | |
| 12 | ||
| 0da70412 LM |
13 | #if defined(CONFIG_SPL_BOOTCOUNT_LIMIT) || defined(CONFIG_BOOTCOUNT_LIMIT) |
| 14 | ||
| 0044c42e SR |
15 | #if !defined(CONFIG_SYS_BOOTCOUNT_LE) && !defined(CONFIG_SYS_BOOTCOUNT_BE) |
| 16 | # if __BYTE_ORDER == __LITTLE_ENDIAN | |
| 17 | # define CONFIG_SYS_BOOTCOUNT_LE | |
| 18 | # else | |
| 19 | # define CONFIG_SYS_BOOTCOUNT_BE | |
| 20 | # endif | |
| 21 | #endif | |
| 22 | ||
| 23 | #ifdef CONFIG_SYS_BOOTCOUNT_LE | |
| 24 | static inline void raw_bootcount_store(volatile u32 *addr, u32 data) | |
| 25 | { | |
| 26 | out_le32(addr, data); | |
| 27 | } | |
| 28 | ||
| 29 | static inline u32 raw_bootcount_load(volatile u32 *addr) | |
| 30 | { | |
| 31 | return in_le32(addr); | |
| 32 | } | |
| 33 | #else | |
| 34 | static inline void raw_bootcount_store(volatile u32 *addr, u32 data) | |
| 35 | { | |
| 36 | out_be32(addr, data); | |
| 37 | } | |
| 38 | ||
| 39 | static inline u32 raw_bootcount_load(volatile u32 *addr) | |
| 40 | { | |
| 41 | return in_be32(addr); | |
| 42 | } | |
| 43 | #endif | |
| 0da70412 LM |
44 | |
| 45 | DECLARE_GLOBAL_DATA_PTR; | |
| 46 | static inline int bootcount_error(void) | |
| 47 | { | |
| 48 | unsigned long bootcount = bootcount_load(); | |
| 49 | unsigned long bootlimit = env_get_ulong("bootlimit", 10, 0); | |
| 50 | ||
| 51 | if (bootlimit && bootcount > bootlimit) { | |
| 52 | printf("Warning: Bootlimit (%lu) exceeded.", bootlimit); | |
| 53 | if (!(gd->flags & GD_FLG_SPL_INIT)) | |
| 54 | printf(" Using altbootcmd."); | |
| 55 | printf("\n"); | |
| 56 | ||
| 57 | return 1; | |
| 58 | } | |
| 59 | ||
| 60 | return 0; | |
| 61 | } | |
| 62 | ||
| 63 | static inline void bootcount_inc(void) | |
| 64 | { | |
| 65 | unsigned long bootcount = bootcount_load(); | |
| 66 | ||
| 67 | if (gd->flags & GD_FLG_SPL_INIT) { | |
| 68 | bootcount_store(++bootcount); | |
| 69 | return; | |
| 70 | } | |
| 71 | ||
| 72 | #ifndef CONFIG_SPL_BUILD | |
| 73 | /* Only increment bootcount when no bootcount support in SPL */ | |
| 74 | #ifndef CONFIG_SPL_BOOTCOUNT_LIMIT | |
| 75 | bootcount_store(++bootcount); | |
| 76 | #endif | |
| 77 | env_set_ulong("bootcount", bootcount); | |
| 78 | #endif /* !CONFIG_SPL_BUILD */ | |
| 79 | } | |
| 80 | ||
| 81 | #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT) | |
| 82 | void bootcount_store(ulong a) {}; | |
| 83 | ulong bootcount_load(void) { return 0; } | |
| 84 | #endif /* CONFIG_SPL_BUILD && !CONFIG_SPL_BOOTCOUNT_LIMIT */ | |
| 85 | #else | |
| 86 | static inline int bootcount_error(void) { return 0; } | |
| 87 | static inline void bootcount_inc(void) {} | |
| 88 | #endif /* CONFIG_SPL_BOOTCOUNT_LIMIT || CONFIG_BOOTCOUNT_LIMIT */ | |
| c1cd21db | 89 | #endif /* _BOOTCOUNT_H__ */ |