soc: qcom: add build infrastructure

Add Kconfig / Makefiles to build rpmh and cmd-db drivers.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>

drivers/soc/Kconfig

@@ -48,6 +48,7 @@ config SOC_XILINX_VERSAL_NET
 	  This allows other drivers to verify the SoC familiy & revision using
 	  matching SoC attributes.
 
+source "drivers/soc/qcom/Kconfig"
 source "drivers/soc/samsung/Kconfig"
 source "drivers/soc/ti/Kconfig"
 

drivers/soc/Makefile

@@ -3,6 +3,7 @@
 # Makefile for the U-Boot SOC specific device drivers.
 
 obj-$(CONFIG_SOC_AMD_VERSAL2) += soc_amd_versal2.o
+obj-$(CONFIG_SOC_QCOM) += qcom/
 obj-$(CONFIG_SOC_SAMSUNG) += samsung/
 obj-$(CONFIG_SOC_TI) += ti/
 obj-$(CONFIG_SOC_DEVICE) += soc-uclass.o

drivers/soc/qcom/Kconfig

@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# QCOM Soc drivers
+#
+menuconfig SOC_QCOM
+	bool "Qualcomm SOC drivers support"
+	help
+	  Say Y here if you want to enable Qualcomm SOC drivers support.
+
+if SOC_QCOM
+
+config QCOM_COMMAND_DB
+	bool "Qualcomm Command DB"
+	help
+	  Command DB queries shared memory by key string for shared system
+	  resources. Platform drivers that require to set state of a shared
+	  resource on a RPM-hardened platform must use this database to get
+	  SoC specific identifier and information for the shared resources.
+
+config QCOM_RPMH
+	bool "Qualcomm RPMh support"
+	depends on QCOM_COMMAND_DB
+	help
+	  Say y here to support the Qualcomm RPMh (resource peripheral manager)
+	  if you need to control regulators on Qualcomm platforms, say y here.
+
+endif # SOC_QCOM

drivers/soc/qcom/Makefile

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-$(CONFIG_QCOM_COMMAND_DB) += cmd-db.o
+obj-$(CONFIG_QCOM_RPMH) += rpmh-rsc.o rpmh.o