From: Kyungmin Park <kyungmin.park@samsung.com>
Date: Fri, 12 May 2006 14:02:51 +0000 (+0300)
Subject: OneNAND: Handle erase correctly in Double Density Package (DDP)
X-Git-Tag: v2.6.18-rc1~1105^2~123
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3cecf69ecde22199699c4f0e609dfed2a487b674;p=linux-2.6

OneNAND: Handle erase correctly in Double Density Package (DDP)

There's erase bug in DDP.
We need to add DDP select in erase

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 6b950ab8ea..7c7dc0ae5a 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -234,6 +234,12 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
 		/* Write 'DFS, FBA' of Flash */
 		value = onenand_block_address(this, block);
 		this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1);
+
+		if (cmd == ONENAND_CMD_ERASE) {
+			/* Select DataRAM for DDP */
+			value = onenand_bufferram_address(this, block);
+			this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2);
+		}
 	}
 
 	if (page != -1) {