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Commit 7d5cba59 authored by Prabhakar Kushwaha's avatar Prabhakar Kushwaha Committed by Boris Brezillon
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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: default avatarJagdish Gediya <jagdish.gediya@nxp.com>
Signed-off-by: default avatarPrabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
parent 147395ea

drivers/mtd/maps/physmap_of_core.c

+6 −0
Original line number Diff line number Diff line
@@ -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;