mtd: pxa3xx_nand: add a default chunk size

commit bc3e00f04cc1fe033a289c2fc2e5c73c0168d360 upstream.

When keeping the configuration set by the bootloader (by using
the marvell,nand-keep-config property), the pxa3xx_nand_detect_config()
function is called and set the chunk size to 512 as a default value if
NDCR_PAGE_SZ is not set.

In the other case, when not keeping the bootloader configuration, no
chunk size is set. Fix this by adding a default chunk size of 512.

Fixes: 70ed85232a93 ("mtd: nand: pxa3xx: Introduce multiple page I/O
support")

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index d058b00ba2186fad620e968ee2ae081fa5e3147d..eb3823e256381a55e8f972f794a2addf0a07e1fb 100644 (file)
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1463,6 +1463,9 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd)
        if (pdata->keep_config && !pxa3xx_nand_detect_config(info))
                goto KEEP_CONFIG;
 
+       /* Set a default chunk size */
+       info->chunk_size = 512;
+
        ret = pxa3xx_nand_sensing(info);
        if (ret) {
                dev_info(&info->pdev->dev, "There is no chip on cs %d!\n",