//------------------------------------------------------------------------------
/// Initializes an EccNandFlash instance.
/// \param ecc Pointer to an EccNandFlash instance.
/// \param model Pointer to the underlying nand chip model. Can be 0.
/// \param commandAddress Address at which commands are sent.
/// \param addressAddress Address at which addresses are sent.
/// \param dataAddress Address at which data is sent.
/// \param pinChipEnable Pin controlling the CE signal of the NandFlash.
/// \param pinReadyBusy Pin used to monitor the ready/busy signal of the Nand.
//------------------------------------------------------------------------------
unsigned char EccNandFlash_Initialize(
struct EccNandFlash *ecc,
const struct NandFlashModel *model,
unsigned int commandAddress,
unsigned int addressAddress,
unsigned int dataAddress,
const Pin pinChipEnable,
const Pin pinReadyBusy)
{
unsigned char rc;
rc = RawNandFlash_Initialize(RAW(ecc),
model,
commandAddress,
addressAddress,
dataAddress,
pinChipEnable,
pinReadyBusy);
#if defined(HARDWARE_ECC)
{ unsigned int ecc_page;
switch(NandFlashModel_GetPageDataSize(MODEL(ecc))) {
case 512: ecc_page = AT91C_HSMC4_PAGESIZE_528_Bytes; break;
case 1024: ecc_page = AT91C_HSMC4_PAGESIZE_1056_Bytes; break;
case 2048: ecc_page = AT91C_HSMC4_PAGESIZE_2112_Bytes; break;
case 4096: ecc_page = AT91C_HSMC4_PAGESIZE_4224_Bytes; break;
default:
TRACE_ERROR("PageSize %d not compatible with ECC\n\r",
NandFlashModel_GetPageDataSize(MODEL(ecc)));
return NandCommon_ERROR_ECC_NOT_COMPATIBLE;
}
HSMC4_EccConfigure(AT91C_ECC_TYPCORRECT_ONE_EVERY_256_BYTES,
ecc_page);
}
#endif
return rc;
}
//------------------------------------------------------------------------------
/// Initializes an EccNandFlash instance.
/// \param ecc Pointer to an EccNandFlash instance.
/// \param model Pointer to the underlying nand chip model. Can be 0.
/// \param commandAddress Address at which commands are sent.
/// \param addressAddress Address at which addresses are sent.
/// \param dataAddress Address at which data is sent.
/// \param pinChipEnable Pin controlling the CE signal of the NandFlash.
/// \param pinReadyBusy Pin used to monitor the ready/busy signal of the Nand.
//------------------------------------------------------------------------------
unsigned char EccNandFlash_Initialize(
struct EccNandFlash *ecc,
const struct NandFlashModel *model,
unsigned int commandAddress,
unsigned int addressAddress,
unsigned int dataAddress,
const Pin pinChipEnable,
const Pin pinReadyBusy)
{
return RawNandFlash_Initialize(RAW(ecc),
model,
commandAddress,
addressAddress,
dataAddress,
pinChipEnable,
pinReadyBusy);
}
/**
* \brief Initializes a SkipBlockNandFlash instance. Scans the device to retrieve or
* create block status information.
*
* \param skipBlock Pointer to a SkipBlockNandFlash instance.
* \param model Pointer to the underlying nand chip model. Can be 0.
* \param commandAddress Address at which commands are sent.
* \param addressAddress Address at which addresses are sent.
* \param dataAddress Address at which data is sent.
* \param pinChipEnable Pin controlling the CE signal of the NandFlash.
* \param pinReadyBusy Pin used to monitor the ready/busy signal of the Nand.
*/
uint8_t SkipBlockNandFlash_Initialize(
struct SkipBlockNandFlash *skipBlock,
const struct NandFlashModel *model,
uint32_t commandAddress,
uint32_t addressAddress,
uint32_t dataAddress,
const Pin pinChipEnable,
const Pin pinReadyBusy)
{
uint8_t error;
#if !defined(OP_BOOTSTRAP_on)
uint32_t numBlocks;
uint32_t block;
#endif
TRACE_DEBUG("SkipBlockNandFlash_Initialize()\n\r");
/* Initialize SkipBlockNandFlash */
#if !defined(OP_BOOTSTRAP_on)
error = EccNandFlash_Initialize(ECC(skipBlock),
model,
commandAddress,
addressAddress,
dataAddress,
pinChipEnable,
pinReadyBusy);
#else
error = RawNandFlash_Initialize(RAW(skipBlock),
model,
commandAddress,
addressAddress,
dataAddress,
pinChipEnable,
pinReadyBusy);
#endif
#if !defined(OP_BOOTSTRAP_on)
if (error) {
return error;
}
/* Retrieve model information */
numBlocks = NandFlashModel_GetDeviceSizeInBlocks(MODEL(skipBlock));
/* Initialize block statuses */
TRACE_DEBUG("Retrieving bad block information ...\n\r");
/* Retrieve block status from their first page spare area */
for (block = 0; block < numBlocks; block++) {
/* Read spare of first page */
error = SkipBlockNandFlash_CheckBlock(skipBlock, block);
if (error != GOODBLOCK) {
if (error == BADBLOCK) {
TRACE_DEBUG("Block #%d is bad\n\r", (unsigned int)block);
}
else {
TRACE_ERROR(
"SkipBlockNandFlash_Initialize: Cannot retrieve info from block #%u\n\r",(unsigned int) block);
}
}
}
#endif
return 0;
}
