Add a condition to determine the rk3288_sdram_channel size.
This patch fixes read sdram_channel property failed from DT on rk3288
boards, which not enable OF_PLATDATA.
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
It is more correct to avoid touching the device tree in the probe() method.
Update the driver to work this way. Note that only SPL needs to fiddle with
the SDRAM registers, so decoding the platform data fully is not necessary in
U-Boot proper.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an extra byte so that this data is not byteswapped. Add a comment to
the code to explain the purpose.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add code to set up the SDRAM in SPL, ready for loading U-Boot. This uses
device tree for configuration so should be able to support other RAM
configurations. It may be possible to generalise the code to support other
SoCs at some point.
Signed-off-by: Simon Glass <sjg@chromium.org>
Xu Ziyuan
Simon Glass