tree 8ce5900ef60e24168c654174cefaf47b02837fbe
parent bfa76d49576599a4b9f9b7a71f23d73d6dcff735
author Max Filippov <jcmvbkbc@gmail.com> 1425007680 +0300
committer Max Filippov <jcmvbkbc@gmail.com> 1425012929 +0300

xtensa: xtfpga: fix hardware lockup caused by LCD driver

LCD driver is always built for the XTFPGA platform, but its base address
is not configurable, and is wrong for ML605/KC705. Its initialization
locks up KC705 board hardware.

Make the whole driver optional, and its base address and bus width
configurable. Implement 4-bit bus access method.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>