Hello,
I'm running under VDSP 5.0 update 10 . Im using the FSS with the SDH driver. I had a problem with the formatting of the SD card : the partition was only half the size of the sd card.
then I dig in the source code of the sdh driver :
| from adi_sdh.c rev. 3578 |
|---|
|
__ADI_SDH_SECTION_CODE
static u32 adi_sdh_CalculateCardSize(
ADI_SDH_DEF *pDevice /* pointer to SDH device we're working on */
){
u32 u32Temp;
u8 u8Temp;
u32 Result = ADI_DEV_RESULT_SUCCESS;
/* save the card block length */
if((pDevice->SlotStatus == ADI_SDH_SLOT_MMC) || (pDevice->SlotStatus == ADI_SDH_SLOT_MMC_HC))
{
pDevice->CardInfo.BlockLength = pDevice->CardInfo.CardRegisters.mmc.csd.read_bl_len;
u8Temp = pDevice->CardInfo.CardRegisters.mmc.csd.c_size_mult;
u32Temp = (1 << (u8Temp + 2));
if(pDevice->SlotStatus == ADI_SDH_SLOT_MMC)
{
pDevice->CardInfo.TotalBlocks = ((pDevice->CardInfo.CardRegisters.mmc.csd.c_size + 1) * u32Temp);
}
else
{
pDevice->CardInfo.TotalBlocks = pDevice->CardInfo.CardRegisters.mmc.extcsd.sec_count;
}
}
else
{
pDevice->CardInfo.BlockLength = pDevice->CardInfo.CardRegisters.sd.csd.read_bl_len;
u8Temp = pDevice->CardInfo.CardRegisters.sd.csd.c_size_mult;
u32Temp = (1 << (u8Temp + 2));
/* IF (SDH slot has Version 2.0 SDHC card) */
if (pDevice->SlotStatus == ADI_SDH_SLOT_SDHC_CARD)
{
/* Memory capacity of version 2.0 SDHC card = (C_SIZE + 1) * 512K bytes */
/* Get Total block count (1 block = 512 bytes) */
/* so, Total block count = ((C_SIZE + 1) * (512KB / 512))
Total block count = ((C_SIZE + 1) * 1KB)
*/
pDevice->CardInfo.TotalBlocks = ((pDevice->CardInfo.CardRegisters.sd.csd.c_size + 1) *
512);
}
/* ELSE (SDH slot has MMC or Version 1.X/2.0 standard capacity SD card) */
else
{
/* calculate Total number of blocks in this memory card */
pDevice->CardInfo.TotalBlocks = ((pDevice->CardInfo.CardRegisters.sd.csd.c_size + 1) * u32Temp);
}
|
I had to change the 512 (in red) by 1024 to make it work. Is it a bug in the driver or something else in my code that could be wrong ?
Thanks,
Jean Michel LECONTE
