dm: core: Add SPL Kconfig for REGMAP and SYSCON

Add SPL Kconfig for REGMAP and SYSCON, so REGMAP and SYSCON can
remove from SPL stage.

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>

configs/chromebook_jerry_defconfig

@@ -12,11 +12,13 @@ CONFIG_CMD_PMIC=y
 CONFIG_CMD_REGULATOR=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_REGMAP=y
+CONFIG_SPL_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_CLK=y
 CONFIG_SPL_CLK=y
 CONFIG_ROCKCHIP_GPIO=y
 CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_SPL_SYSCON=y
 CONFIG_LED=y
 CONFIG_SPL_LED=y
 CONFIG_LED_GPIO=y

configs/firefly-rk3288_defconfig

@@ -12,11 +12,13 @@ CONFIG_CMD_PMIC=y
 CONFIG_CMD_REGULATOR=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_REGMAP=y
+CONFIG_SPL_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_CLK=y
 CONFIG_SPL_CLK=y
 CONFIG_ROCKCHIP_GPIO=y
 CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_SPL_SYSCON=y
 CONFIG_LED=y
 CONFIG_LED_GPIO=y
 CONFIG_RESET=y

configs/sandbox_defconfig

@@ -22,7 +22,9 @@ CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
 CONFIG_OF_CONTROL=y
 CONFIG_OF_HOSTFILE=y
 CONFIG_REGMAP=y
+CONFIG_SPL_REGMAP=y
 CONFIG_SYSCON=y
+CONFIG_SPL_SYSCON=y
 CONFIG_DEVRES=y
 CONFIG_ADC=y
 CONFIG_ADC_SANDBOX=y

drivers/core/Kconfig

@@ -72,6 +72,16 @@ config REGMAP
 	  support any bus type (I2C, SPI) but so far this only supports
 	  direct memory access.
 
+config SPL_REGMAP
+	bool "Support register maps in SPL"
+	depends on DM
+	help
+	  Hardware peripherals tend to have one or more sets of registers
+	  which can be accessed to control the hardware. A register map
+	  models this with a simple read/write interface. It can in principle
+	  support any bus type (I2C, SPI) but so far this only supports
+	  direct memory access.
+
 config SYSCON
 	bool "Support system controllers"
 	depends on REGMAP
@@ -81,6 +91,15 @@ config SYSCON
 	  by this uclass, including accessing registers via regmap and
 	  assigning a unique number to each.
 
+config SPL_SYSCON
+	bool "Support system controllers in SPL"
+	depends on REGMAP
+	help
+	  Many SoCs have a number of system controllers which are dealt with
+	  as a group by a single driver. Some common functionality is provided
+	  by this uclass, including accessing registers via regmap and
+	  assigning a unique number to each.
+
 config DEVRES
 	bool "Managed device resources"
 	depends on DM

drivers/core/Makefile

@@ -9,5 +9,5 @@ obj-$(CONFIG_DEVRES) += devres.o
 obj-$(CONFIG_$(SPL_)DM_DEVICE_REMOVE)	+= device-remove.o
 obj-$(CONFIG_$(SPL_)SIMPLE_BUS)	+= simple-bus.o
 obj-$(CONFIG_DM)	+= dump.o
-obj-$(CONFIG_REGMAP)	+= regmap.o
-obj-$(CONFIG_SYSCON)	+= syscon-uclass.o
+obj-$(CONFIG_$(SPL_)REGMAP)	+= regmap.o
+obj-$(CONFIG_$(SPL_)SYSCON)	+= syscon-uclass.o