DataFlash AT45DB021 support

Some boards based on AT91SAM926X-EK use smaller DF chips to keep
bootstrap, u-boot and its environment, using NAND or other external
storage for kernel and rootfs. This patch adds support for
small 1024x263 chip.

Signed-off-by: Sergey Lapin <slapin@ossfans.org>
2 files changed