The ICH SPI controller supports two variants, one of which is ICH7
compatible and the other is ICH9 compatible. Change 'pch_version'
to 'ich_version' to better match its original name.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NJagan Teki <jteki@openedev.com>
Tested-by: NSimon Glass <sjg@chromium.org>

This cleans up the ich spi driver a little bit:
- Remove struct ich_spi_slave that is not referenced anywhere
- Remove ending period in some comments
- Move struct ich_spi_platdata and struct ich_spi_priv to ich.h
- Add #ifndef _ICH_H_ .. in ich.h
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NJagan Teki <jteki@openedev.com>

The base address is found in a different way and the protection bit is also
in a different place. Otherwise it is very similar.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Signed-off-by: NWolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: NTom Rini <trini@ti.com>

This supports Intel ICH7/9. The Intel controller is a little unusual in
that it is mostly intended for use with SPI flash, and has some
optimisations and features specifically for that application. In
particular it is not possible to support ongoing transactions that
continue over many calls with SPI_XFER_BEGIN and SPI_XFER_END.

This driver supports writes of up to 64 bytes at a time, the limit
for the controller. Future work will improve this.
Signed-off-by: NBernie Thompson <bhthompson@chromium.org>
Signed-off-by: NDuncan Laurie <dlaurie@chromium.org>
Signed-off-by: NBill Richardson <wfrichar@chromium.org>
Signed-off-by: NVadim Bendebury <vbendeb@chromium.org>
Signed-off-by: NGabe Black <gabeblack@chromium.org>
Signed-off-by: NSimon Glass <sjg@chromium.org>