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_mem(u32 base, u32 lim);
15 int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len);
16 int bcm47xx_nvram_gpio_pin(const char *name);
17 char *bcm47xx_nvram_get_contents(size_t *val_len);
bcm47xx_nvram_release_contents(char * nvram)18 static inline void bcm47xx_nvram_release_contents(char *nvram)
19 {
20 	vfree(nvram);
21 };
22 #else
bcm47xx_nvram_init_from_mem(u32 base,u32 lim)23 static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
24 {
25 	return -ENOTSUPP;
26 };
bcm47xx_nvram_getenv(const char * name,char * val,size_t val_len)27 static inline int bcm47xx_nvram_getenv(const char *name, char *val,
28 				       size_t val_len)
29 {
30 	return -ENOTSUPP;
31 };
bcm47xx_nvram_gpio_pin(const char * name)32 static inline int bcm47xx_nvram_gpio_pin(const char *name)
33 {
34 	return -ENOTSUPP;
35 };
36 
bcm47xx_nvram_get_contents(size_t * val_len)37 static inline char *bcm47xx_nvram_get_contents(size_t *val_len)
38 {
39 	return NULL;
40 };
41 
bcm47xx_nvram_release_contents(char * nvram)42 static inline void bcm47xx_nvram_release_contents(char *nvram)
43 {
44 };
45 #endif
46 
47 #endif /* __BCM47XX_NVRAM_H */
48