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From e31e8120d5552c200785a6e2f1958d7f7643a675 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <j.beisert@pengutronix.de>
Date: Tue, 29 Sep 2009 14:55:47 +0200
Subject: [PATCH 03/15] MXC NFC: Add a real NAND flash data width setup function
Provide a real subfunction to setup the NAND flash data width.
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
---
drivers/mtd/nand/mxc_nand_v2.c | 15 ++++++++++++---
1 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/nand/mxc_nand_v2.c b/drivers/mtd/nand/mxc_nand_v2.c
index 3483e7d..03d1ba4 100644
--- a/drivers/mtd/nand/mxc_nand_v2.c
+++ b/drivers/mtd/nand/mxc_nand_v2.c
@@ -830,6 +830,14 @@ static void unlock_addr(struct mxc_nand_host *host, unsigned int start_addr, uns
BUG();
}
+static void __init mxc_data_width(struct mxc_nand_host *host, unsigned width)
+{
+ if ((width != 8) && (width != 16)) {
+ BUG();
+ }
+ /* TODO */
+}
+
static int __init mxcnd_probe(struct platform_device *pdev)
{
struct nand_chip *this;
@@ -898,12 +906,13 @@ static int __init mxcnd_probe(struct platform_device *pdev)
} else
BUG();
- /* NAND bus width determines access funtions used by upper layer */
+ /* NAND bus width determines access functions used by upper layer */
if (pdata->width == 2) {
this->read_byte = mxc_nand_read_byte16;
this->options |= NAND_BUSWIDTH_16;
- mxc_set_nfms(mtd, 1 << NFMS_NF_DWIDTH);
- }
+ mxc_data_width(host, 16);
+ } else
+ mxc_data_width(host, 8);
init_waitqueue_head(&host->irq_waitq);
--
1.6.1
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