int VFL_Verify(void)
{
int i;
int foundSignature = false;
LOGDBG("ftl: Attempting to read %d pages from first block of first bank.\n", NANDGeometry->pagesPerBlock);
for(i = 0; i < NANDGeometry->pagesPerBlock; i++) {
int ret;
if((ret = nand_read_alternate_ecc(0, i, PageBuffer)) == 0) {
u32 id = *((u32*) PageBuffer);
if(id == FTL_ID_V1 || id == FTL_ID_V2 || id == FTL_ID_V3) {
LOG("ftl: Found production format: %x\n", id);
foundSignature = true;
break;
} else {
LOGDBG("ftl: Found non-matching signature: %x\n", ((u32*) PageBuffer));
}
} else {
LOGDBG("ftl: page %d of first bank is unreadable: %x!\n", i, ret);
}
}
if(!foundSignature || !hasDeviceInfoBBT()) {
LOG("ftl: no signature or production format.\n");
return -1;
}
return 0;
}
int ftl_setup() {
if(HasFTLInit)
return 0;
nand_setup();
Data = nand_get_geometry();
Data2 = nand_get_data();
if(VFL_Init() != 0) {
bufferPrintf("ftl: VFL_Init failed\r\n");
return -1;
}
if(FTL_Init() != 0) {
bufferPrintf("ftl: FTL_Init failed\r\n");
return -1;
}
int i;
int foundSignature = FALSE;
DebugPrintf("ftl: Attempting to read %d pages from first block of first bank.\r\n", Data->pagesPerBlock);
uint8_t* buffer = malloc(Data->bytesPerPage);
for(i = 0; i < Data->pagesPerBlock; i++) {
int ret;
if((ret = nand_read_alternate_ecc(0, i, buffer)) == 0) {
uint32_t id = *((uint32_t*) buffer);
if(id == FTL_ID_V1 || id == FTL_ID_V2) {
bufferPrintf("ftl: Found production format: %x\r\n", id);
foundSignature = TRUE;
break;
} else {
DebugPrintf("ftl: Found non-matching signature: %x\r\n", ((uint32_t*) buffer));
}
} else {
DebugPrintf("ftl: page %d of first bank is unreadable: %x!\r\n", i, ret);
}
}
free(buffer);
if(!foundSignature || !hasDeviceInfoBBT()) {
bufferPrintf("ftl: no signature or production format.\r\n");
return -1;
}
if(VFL_Open() != 0) {
bufferPrintf("ftl: VFL_Open failed\r\n");
return -1;
}
int pagesAvailable;
int bytesPerPage;
if(FTL_Open(&pagesAvailable, &bytesPerPage) != 0) {
bufferPrintf("ftl: FTL_Open failed\r\n");
return -1;
}
HasFTLInit = TRUE;
return 0;
}
