bcm47xx_nvram.h

 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/vmalloc.h>
11
12#ifdef CONFIG_BCM47XX_NVRAM
13int bcm47xx_nvram_init_from_iomem(void __iomem *nvram_start, size_t res_size);
14int bcm47xx_nvram_init_from_mem(u32 base, u32 lim);
15int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len);
16int bcm47xx_nvram_gpio_pin(const char *name);
17char *bcm47xx_nvram_get_contents(size_t *val_len);
18static inline void bcm47xx_nvram_release_contents(char *nvram)
19{
20	vfree(nvram);
21};
22#else
23static inline int bcm47xx_nvram_init_from_iomem(void __iomem *nvram_start,
24						size_t res_size)
25{
26	return -ENOTSUPP;
27}
28static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
29{
30	return -ENOTSUPP;
31};
32static inline int bcm47xx_nvram_getenv(const char *name, char *val,
33				       size_t val_len)
34{
35	return -ENOTSUPP;
36};
37static inline int bcm47xx_nvram_gpio_pin(const char *name)
38{
39	return -ENOTSUPP;
40};
41
42static inline char *bcm47xx_nvram_get_contents(size_t *val_len)
43{
44	return NULL;
45};
46
47static inline void bcm47xx_nvram_release_contents(char *nvram)
48{
49};
50#endif
51
52#endif /* __BCM47XX_NVRAM_H */