1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | */ |
4 | |
5 | #ifndef __BCM47XX_NVRAM_H |
6 | #define __BCM47XX_NVRAM_H |
7 | |
8 | #include <linux/errno.h> |
9 | #include <linux/types.h> |
10 | #include <linux/kernel.h> |
11 | #include <linux/vmalloc.h> |
12 | |
13 | #ifdef CONFIG_BCM47XX_NVRAM |
14 | int bcm47xx_nvram_init_from_iomem(void __iomem *nvram_start, size_t res_size); |
15 | int bcm47xx_nvram_init_from_mem(u32 base, u32 lim); |
16 | int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len); |
17 | int bcm47xx_nvram_gpio_pin(const char *name); |
18 | char *bcm47xx_nvram_get_contents(size_t *val_len); |
19 | static inline void bcm47xx_nvram_release_contents(char *nvram) |
20 | { |
21 | vfree(addr: nvram); |
22 | }; |
23 | #else |
24 | static inline int bcm47xx_nvram_init_from_iomem(void __iomem *nvram_start, |
25 | size_t res_size) |
26 | { |
27 | return -ENOTSUPP; |
28 | } |
29 | static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim) |
30 | { |
31 | return -ENOTSUPP; |
32 | }; |
33 | static inline int bcm47xx_nvram_getenv(const char *name, char *val, |
34 | size_t val_len) |
35 | { |
36 | return -ENOTSUPP; |
37 | }; |
38 | static inline int bcm47xx_nvram_gpio_pin(const char *name) |
39 | { |
40 | return -ENOTSUPP; |
41 | }; |
42 | |
43 | static inline char *bcm47xx_nvram_get_contents(size_t *val_len) |
44 | { |
45 | return NULL; |
46 | }; |
47 | |
48 | static inline void bcm47xx_nvram_release_contents(char *nvram) |
49 | { |
50 | }; |
51 | #endif |
52 | |
53 | #endif /* __BCM47XX_NVRAM_H */ |
54 | |