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nand_spl: Fix large page nand_command() 

This patch changes the large page nand_command() routine to use a word
offset instead of a byte offset. The 'offs' argument gets divided by 2
so that the offset passed to nand_command() is still by byte offset.
Originally, the offset was not shifted and when too high an offset was
requested the nand chip would attempt to read non-existent data.

Signed-off-by: Alex Waterman <awaterman@dawning.com>
This commit is contained in:
Alex Waterman 2011-04-06 16:01:52 -04:00 committed by Scott Wood
parent 6297454688
commit 65a9db7be0
1 changed files with 4 additions and 0 deletions
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4
nand_spl/nand_boot.c
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@ -90,6 +90,10 @@ static int nand_command(struct mtd_info *mtd, int block, int page, int offs, u8
cmd = NAND_CMD_READ0;
}
/* Shift the offset from byte addressing to word addressing. */
if (this->options & NAND_BUSWIDTH_16)
offs >>= 1;
/* Begin command latch cycle */
this->cmd_ctrl(mtd, cmd, NAND_CTRL_CLE | NAND_CTRL_CHANGE);
/* Set ALE and clear CLE to start address cycle */