/************************************************************************
* Initialize Environment use
*
* We are still running from ROM, so data use is limited
*/
int env_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_AMIGAONEG3SE
enable_nvram();
#endif
#if defined(CFG_NVRAM_ACCESS_ROUTINE)
ulong crc;
uchar data[ENV_SIZE];
nvram_read (&crc, CFG_ENV_ADDR, sizeof(ulong));
nvram_read (data, CFG_ENV_ADDR+sizeof(ulong), ENV_SIZE);
if (crc32(0, data, ENV_SIZE) == crc) {
gd->env_addr = (ulong)CFG_ENV_ADDR + sizeof(long);
#else
if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
gd->env_addr = (ulong)&(env_ptr->data);
#endif
gd->env_valid = 1;
} else {
gd->env_addr = (ulong)&default_environment[0];
gd->env_valid = 0;
}
#ifdef CONFIG_AMIGAONEG3SE
disable_nvram();
#endif
return (0);
}
void env_relocate (void)
{
unsigned char initEthAddr = 0;
DEBUGF ("%s[%d] offset = 0x%lx\n", __FUNCTION__,__LINE__,
gd->reloc_off);
#ifdef CONFIG_AMIGAONEG3SE
enable_nvram();
#endif
#ifdef ENV_IS_EMBEDDED
/*
* The environment buffer is embedded with the text segment,
* just relocate the environment pointer
*/
env_ptr = (env_t *)((ulong)env_ptr + gd->reloc_off);
DEBUGF ("%s[%d] embedded ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#else
/*
* We must allocate a buffer for the environment
*/
env_ptr = (env_t *)malloc (CONFIG_ENV_SIZE);
DEBUGF ("%s[%d] malloced ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#endif
if (gd->env_valid == 0) {
#if defined(CONFIG_GTH) || defined(CONFIG_ENV_IS_NOWHERE) /* Environment not changable */
puts ("Using default environment\n\n");
#else
puts ("*** Warning - bad CRC, using default environment\n\n");
show_boot_progress (-60);
#endif
set_default_env();
initEthAddr = 1;
}
else {
env_relocate_spec ();
}
gd->env_addr = (ulong)&(env_ptr->data);
#ifdef CONFIG_AMIGAONEG3SE
disable_nvram();
#endif
if (initEthAddr) {
const char * ethaddr = getenv("ethaddr");
if (ethaddr == 0L) {
extern const char * env_read_backup_mac(void );
ethaddr = env_read_backup_mac();
if (ethaddr != 0L && strlen(ethaddr) == 17) {
setenv("ethaddr", ethaddr);
}
}
}
}
void env_relocate (void)
{
DEBUGF ("%s[%d] offset = 0x%lx\n", __FUNCTION__,__LINE__,
gd->reloc_off);
#ifdef CONFIG_AMIGAONEG3SE
enable_nvram();
#endif
#ifdef ENV_IS_EMBEDDED
/*
* The environment buffer is embedded with the text segment,
* just relocate the environment pointer
*/
env_ptr = (env_t *)((ulong)env_ptr + gd->reloc_off);
DEBUGF ("%s[%d] embedded ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#else
/*
* We must allocate a buffer for the environment
*/
env_ptr = (env_t *)malloc (CFG_ENV_SIZE);
DEBUGF ("%s[%d] malloced ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#endif
/*
* After relocation to RAM, we can always use the "memory" functions
*/
env_get_char = env_get_char_memory;
if (gd->env_valid == 0) {
#if defined(CONFIG_GTH) || defined(CFG_ENV_IS_NOWHERE) /* Environment not changable */
puts ("Using default environment\n\n");
#else
puts ("*** Warning - bad CRC, using default environment\n\n");
show_boot_progress (-60);
#endif
}
#ifdef CFG_PREBOOT_OVERRIDE
if (preboot_override)
gd->env_valid = 0;
#endif
if (gd->env_valid == 0)
default_env();
else {
env_relocate_spec ();
}
gd->env_addr = (ulong)&(env_ptr->data);
#ifdef CONFIG_AMIGAONEG3SE
disable_nvram();
#endif
}
uchar env_get_char_memory (int index)
{
uchar retval;
enable_nvram();
if (gd->env_valid) {
retval = ( *((uchar *)(gd->env_addr + index)) );
} else {
retval = ( default_environment[index] );
}
disable_nvram();
return retval;
}
uchar env_get_char_spec (int index)
{
#ifdef CFG_NVRAM_ACCESS_ROUTINE
uchar c;
nvram_read(&c, CFG_ENV_ADDR+index, 1);
return c;
#else
DECLARE_GLOBAL_DATA_PTR;
uchar retval;
enable_nvram();
retval = *((uchar *)(gd->env_addr + index));
disable_nvram();
return retval;
#endif
}
void env_relocate (void)
{
DEBUGF ("%s[%d] offset = 0x%lx\n", __FUNCTION__,__LINE__,
gd->reloc_off);
#ifdef CONFIG_AMIGAONEG3SE
enable_nvram();
#endif
#ifdef ENV_IS_EMBEDDED
/*
* The environment buffer is embedded with the text segment,
* just relocate the environment pointer
*/
env_ptr = (env_t *)((ulong)env_ptr + gd->reloc_off);
DEBUGF ("%s[%d] embedded ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#else
/*
* We must allocate a buffer for the environment
*/
env_ptr = (env_t *)malloc (CONFIG_ENV_SIZE);
DEBUGF ("%s[%d] malloced ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#endif
if (gd->env_valid == 0) {
#if defined(CONFIG_GTH) || defined(CONFIG_ENV_IS_NOWHERE) /* Environment not changable */
puts ("Using default environment\n\n");
#else
puts ("*** Warning - bad CRC, using default environment\n\n");
show_boot_progress (-60);
#endif
set_default_env();
}
else {
env_relocate_spec ();
}
gd->env_addr = (ulong)&(env_ptr->data);
//#if defined(CONFIG_ARCH_NS2816_DEMO)
gd->bd->bi_env = gd->env_addr;
//#endif
#ifdef CONFIG_AMIGAONEG3SE
disable_nvram();
#endif
}
int saveenv (void)
{
int rcode = 0;
#ifdef CONFIG_AMIGAONEG3SE
enable_nvram();
#endif
#ifdef CFG_NVRAM_ACCESS_ROUTINE
nvram_write(CFG_ENV_ADDR, env_ptr, CFG_ENV_SIZE);
#else
if (memcpy ((char *)CFG_ENV_ADDR, env_ptr, CFG_ENV_SIZE) == NULL)
rcode = 1 ;
#endif
#ifdef CONFIG_AMIGAONEG3SE
udelay(10000);
disable_nvram();
#endif
return rcode;
}
void env_relocate (void)
{
DECLARE_GLOBAL_DATA_PTR;
DEBUGF ("%s[%d] offset = 0x%lx\n", __FUNCTION__,__LINE__,
gd->reloc_off);
#ifdef CONFIG_AMIGAONEG3SE
enable_nvram();
#endif
#ifdef ENV_IS_EMBEDDED
/*
* The environment buffer is embedded with the text segment,
* just relocate the environment pointer
*/
env_ptr = (env_t *)((ulong)env_ptr + gd->reloc_off);
DEBUGF ("%s[%d] embedded ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#else
/*
* We must allocate a buffer for the environment
*/
env_ptr = (env_t *)malloc (CFG_ENV_SIZE);
DEBUGF ("%s[%d] malloced ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#endif
/*
* After relocation to RAM, we can always use the "memory" functions
*/
env_get_char = env_get_char_memory;
if (gd->env_valid == 0) {
#if defined(CONFIG_GTH) || defined(CFG_ENV_IS_NOWHERE) /* Environment not changable */
puts ("Using default environment\n\n");
#else
puts ("*** Warning - bad CRC, using default environment\n\n");
SHOW_BOOT_PROGRESS (-1);
#endif
if (sizeof(default_environment) > ENV_SIZE)
{
puts ("*** Error - default environment is too large\n\n");
return;
}
memset (env_ptr, 0, sizeof(env_t));
memcpy (env_ptr->data,
default_environment,
sizeof(default_environment));
#ifdef CFG_REDUNDAND_ENVIRONMENT
env_ptr->flags = 0xFF;
#endif
env_crc_update ();
gd->env_valid = 1;
}
else {
env_relocate_spec ();
}
gd->env_addr = (ulong)&(env_ptr->data);
#ifdef CONFIG_AMIGAONEG3SE
disable_nvram();
#endif
}