Patch "mtd: nand: ifc: update bufnum mask for ver >= 2.0.0" has been added to the 4.15-stable tree

This is a note to let you know that I've just added the patch titled

mtd: nand: ifc: update bufnum mask for ver >= 2.0.0

to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:

     mtd-nand-ifc-update-bufnum-mask-for-ver-2.0.0.patch

and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Jagdish Gediya <[email protected]>
Date: Thu, 23 Nov 2017 17:04:31 +0530
Subject: mtd: nand: ifc: update bufnum mask for ver >= 2.0.0

From: Jagdish Gediya <[email protected]>

[ Upstream commit bccb06c353af3764ca86d9da47652458e6c2eb41 ]

Bufnum mask is used to calculate page position in the internal SRAM.

As IFC version 2.0.0 has 16KB of internal SRAM as compared to older versions which had 8KB. Hence bufnum mask needs to be updated.

---
 drivers/mtd/nand/fsl_ifc_nand.c |    7 +++++++
 1 file changed, 7 insertions(+)

@@ -916,6 +916,13 @@ static int fsl_ifc_chip_init(struct fsl_
 	if (ctrl->version >= FSL_IFC_VERSION_1_1_0)
 		fsl_ifc_sram_init(priv);
 
+	/*
+	 * As IFC version 2.0.0 has 16KB of internal SRAM as compared to older
+	 * versions which had 8KB. Hence bufnum mask needs to be updated.
+	 */
+	if (ctrl->version >= FSL_IFC_VERSION_2_0_0)
+		priv->bufnum_mask = (priv->bufnum_mask * 2) + 1;
+
 	return 0;
 }
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.15/mtd-nand-ifc-update-bufnum-mask-for-ver-2.0.0.patch