mtk-preloader/platform/common/inc/dconfig_env.h

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#ifndef __DCONFIG_ENV_H__
#define __DCONFIG_ENV_H__

#define CFG_ENV_SIZE     0x400 //(1KB)
#define CFG_ENV_OFFSET   0x400 // (start of partition)
#define ENV_PART "boot_para"

#define CFG_ENV_DATA_SIZE (CFG_ENV_SIZE-sizeof(g_env.checksum)-sizeof(g_env.sig)-sizeof(g_env.sig_1))
#define CFG_ENV_DATA_OFFSET (sizeof(g_env.sig))
#define CFG_ENV_SIG_1_OFFSET (CFG_ENV_SIZE - sizeof(g_env.checksum)-sizeof(g_env.sig_1))
#define CFG_ENV_CHECKSUM_OFFSET (CFG_ENV_SIZE - sizeof(g_env.checksum))
#define ENV_SIG "ENV_v1"

typedef struct dconfig_env_struct {
	char sig[8]; // "ENV_v1"
	char *env_data;
	char sig_1[8];  //"ENV_v1"
	int checksum; // checksum for env_data
} dconfig_env_t;

void dconfig_initenv(void);
char* dconfig_getenv(char* name);
void dconfig_printenv(void);

#endif