Add the 'hpe,gsc-dwcmshc' compatible string for the HPE GSC (ARM64
Cortex-A53) BMC SoC eMMC controller.
The HPE GSC requires access to the MSHCCS register in the SoC system
register block to configure SCG sync disable for HS200 RX delay-line
phase selection. The required 'hpe,gxp-sysreg' property takes a
phandle to the existing 'hpe,gxp-sysreg' syscon and the MSHCCS
register offset within that block.
The HPE GSC eMMC interface only exposes a single 'core' clock (no
bus clock), so clocks/clock-names are constrained to a single item.
Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>