Hi All, We are using customized A20 based on Cubie2 Board. Android 4.2.2 Source from third party "a20_sdk30".
Using SK Hynix NAND H27UCG8T2BTR 8GB. Board was not booting up, so when tried to re-flash using Livesuite could find the large number of Bad block, livesuite serial log snip below. LiveSuite Log::: <snip> * 451 bad blocks in CE 0* cal bad block num is 902 cal good block num is 459 [Fed]:get the good blk ratio after hwscan : -1 [Read_single_page_spare] NFC_ReadRetry 3 cycles, chip = 0, block = 1863, page = 255, RetryCount = 3 _RepairLogBlkTbl start _RepairLogBlkTbl end [FORMAT_ERR] There is not enough valid block for using! [FORMAT_ERR] There is not enough free blocks for distribute! [FORMAT_ERR] Format nand disk failed! [Fed]:ERR: FMT_FormatNand failed [Fed]:Fail to logic init flash! [Fed]:------------------------------------------------- [Fed]: Byebye, Nand Register. [Fed]:------------------------------------------------- Noticed that when frequently using h/w reset(100-500 times) there is rise in Bad Block count. Need some help to resolve this issue. What can be the possible reason for rise in Bad block? For testing purpose modified the Boot1 code with NAND_EraseChip() API call, could find reduction in bad block count when using LiveSuit next time. So my guess is these Bad Block count is not the actual one. Is it possible to clear bad block? Highly appreciate any support. Thanks in advance. Regards, Zahir -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
