[U-Boot] [U-Boot, v4, 51/66] rockchip: rk3368: dts: add DMC node in rk3368.dtsi

[Philipp Tomsich]

> For full SPL support, including DRAM initialisation, we need a few
> nodes from the DTS: this commit adds the DMC (DRAM controller) node,
> the service_msch (memory scheduler) node and marks GRF, PMUGRF and CRU
> as 'u-boot,dm-pre-reloc'.  In addition to this, we also include the
> dt-binding for the DMC to allow DTS files including this DTSI to refer
> to the symbolic constants for the DDR3 bin and for the
> memory-schedule.
> 
> Note that the DMC contains both the memory regions for the
> (Designware) protocol controller as well as the DDR PHY.
> 
> Signed-off-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2:
> - removes a 'u-boot,dm-pre-reloc' from dmc-node in rk3368.dtsi
> 
>  arch/arm/dts/rk3368.dtsi | 25 +++++++++++++++++++------
>  1 file changed, 19 insertions(+), 6 deletions(-)
> 

Applied to u-boot-rockchip, thanks!