int
BCMATTACHFN(nvram_init)(void *si)
{
bool isemb;
int ret;
si_t *sih;
static int nvram_status = -1;
#ifdef __ECOS
if (!kernel_initial)
return 0;
#endif
/* Check for previous 'restore defaults' condition */
if (nvram_status == 1)
return 1;
/* Check whether nvram already initilized */
if (nvram_status == 0 && !nvram_do_reset)
return 0;
sih = (si_t *)si;
/* Restore defaults from embedded NVRAM if button held down */
if (nvram_do_reset) {
/* Initialize with embedded NVRAM */
nvram_header = find_nvram(TRUE, &isemb);
ret = _nvram_init(si);
if (ret == 0) {
nvram_status = 1;
return 1;
}
nvram_status = -1;
_nvram_exit();
}
/* Find NVRAM */
nvram_header = find_nvram(FALSE, &isemb);
ret = _nvram_init(si);
if (ret == 0) {
/* Restore defaults if embedded NVRAM used */
if (nvram_header && isemb) {
ret = 1;
}
}
nvram_status = ret;
return ret;
}
int
nvram_init(void *si)
{
bool isemb;
int ret;
si_t *sih;
static int nvram_status = -1;
/* Check for previous 'restore defaults' condition */
if (nvram_status == 1)
return 1;
sih = (si_t *)si;
/* Initialize private semaphore */
if ((nvram_lock = semBCreate(SEM_Q_FIFO, SEM_FULL)) == NULL) {
printf("nvram_init: semBCreate failed\n");
return ERROR;
}
/* Find NVRAM */
nvram_header = find_nvram(FALSE, &isemb);
if (!nvram_header) {
#if defined(BUILD_VXBOOT)
nvram_header = NV_RAM_ADRS;
#else
return ERROR;
#endif
}
ret = _nvram_init(si);
if (ret == 0) {
/* Restore defaults if embedded NVRAM used */
if (nvram_header && isemb) {
ret = 1;
}
}
nvram_status = ret;
return ret;
}
