Hi,
On Tue, Jul 21, 2009 at 7:50 PM, Wolfgang Denkwd@denx.de wrote:
Dear Kyungmin Park,
In message 20090721095528.GA23408@july you wrote:
At bootloader, we don't need to read full page. It takes too long time. Instead it only read pages required for boot. Of course, this patch reduces the boot time
What does "don't need to read full page" mean?
It means all blocks at scanning time.
when we read pages, we always read fullpages, don't we?
@@ -155,6 +192,11 @@ static int onenand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) block = (int)(offs >> (bbm->bbt_erase_shift - 1)); res = (bbm->bbt[block >> 3] >> (block & 0x06)) & 0x03;
- if (this->options & ONENAND_RUNTIME_BADBLOCK_CHECK) {
- if (res == 0x02)
- res = read_page_oob(mtd, offs, this->oob_buf);
- }
ONENAND_RUNTIME_BADBLOCK_CHECK is a new #define, right? It should be documented (for example in the README, or even better in doc/README.OneNand or so).
It's OneNAND specific option. Umm I'll try to describe it
Thank you, Kyungmin Park