[U-Boot] [PATCH v2] nand_spl: Fix large page nand_command()

[Alex Waterman]

Sorry, I screwed up the settings in Thunderbird, hopefully I fixed the 
white space/name issues now.

About the patch not applying, I used git format-patch and git apply to
test the stuff locally, was that wrong?

Here is a revised patch, I hope this is better.

- Alex

From: Alex Waterman <awaterman at dawning.com>
Date: Wed, 6 Apr 2011 15:09:57 -0400
Subject: [PATCH] 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.

Changes for v2:

 - Moved the offset calculation to outside of the OOB emulation code.
 - Hopefully no more whitespace mangling.

Signed-off-by: Alex Waterman <awaterman at dawning.com>
---
 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 */
-- 1.7.3.1