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| author | Alex Waterman <awaterman@dawning.com> | 2011-04-06 16:01:52 -0400 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2011-04-15 15:53:11 -0500 |
| commit | 65a9db7be0868be91ba81b9b5bf821de82e6d9b0 (patch) | |
| tree | 72b55838665f15e88417bd482503ed60b94fb651 /nand_spl/nand_boot.c | |
| parent | 62974546888c1f9abfdb4ba9f66465a5d102d4d3 (diff) | |
| download | u-boot-imx-65a9db7be0868be91ba81b9b5bf821de82e6d9b0.zip u-boot-imx-65a9db7be0868be91ba81b9b5bf821de82e6d9b0.tar.gz u-boot-imx-65a9db7be0868be91ba81b9b5bf821de82e6d9b0.tar.bz2 | |
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>
Diffstat (limited to 'nand_spl/nand_boot.c')
| -rw-r--r-- | nand_spl/nand_boot.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/nand_spl/nand_boot.c b/nand_spl/nand_boot.c index 76b8566..4a96878 100644 --- a/nand_spl/nand_boot.c +++ b/nand_spl/nand_boot.c @@ -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 */ |