tree e48836e5e4d1fb71522b52aa2d9f4df3d101334d
parent 6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f
author Boris BREZILLON <boris.brezillon@free-electrons.com> 1442220063 +0200
committer Brian Norris <computersforpeace@gmail.com> 1442867802 -0700

mtd: nand: sunxi: fix OOB handling in ->write_xxx() functions

The USER_DATA register cannot be accessed using byte accessors on A13
SoCs, thus triggering a bug when using memcpy_toio on this register.
Declare an helper macros to convert an OOB buffer into a suitable
USER_DATA value and vice-versa.

This patch also fixes an error in the oob_required logic (some OOB data
are not written even if the user required it) by removing the
oob_required condition, which is perfectly valid since the core already
fill ->oob_poi with FFs when oob_required is false.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: <stable@vger.kernel.org> # 3.19+
Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support")
Signed-off-by: Brian Norris <computersforpeace@gmail.com>