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mtd: physmap_of: update struct map_info's swap as per map requirement 

It is not necessary for all device's maps to be CFI_HOST_ENDIAN.
Maps device can be Big endian or little endian.

Currently it is being taken care using CONFIG_MTD_CFI_LE_BYTE_SWAP or
CONFIG_MTD_CFI_BE_BYTE_SWAP i.e. compile time.

Now update struct map_info's swap field based on device characteristics
defined in device tree.

Signed-off-by: Jagdish Gediya <jagdish.gediya@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
hifive-unleashed-5.1
Prabhakar Kushwaha 2018-03-28 11:15:52 +05:30 committed by Boris Brezillon
parent 147395ea40
commit 7d5cba597d
1 changed files with 6 additions and 0 deletions
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6
drivers/mtd/maps/physmap_of_core.c
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@ -20,6 +20,7 @@
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/concat.h>
#include <linux/mtd/cfi_endian.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
@ -233,6 +234,11 @@ static int of_flash_probe(struct platform_device *dev)
info->list[i].map.bankwidth = be32_to_cpup(width);
info->list[i].map.device_node = dp;
if (of_property_read_bool(dp, "big-endian"))
info->list[i].map.swap = CFI_BIG_ENDIAN;
else if (of_property_read_bool(dp, "little-endian"))
info->list[i].map.swap = CFI_LITTLE_ENDIAN;
err = of_flash_probe_gemini(dev, dp, &info->list[i].map);
if (err)
goto err_out;