rockchip: rk3328: rock64 - fix gen3 SPL hang

Use the same approach as ROC-RK3328-CC which enables SPL GPIO,
pinctl and regulator support. This allows the gen3 board to
boot through SPL and does not break gen2 in the process.
Signed-off-by: NKurt Miller <kurt@intricatesoftware.com>
Acked-by: NMatwey V. Kornilov <matwey.kornilov@gmail.com>
Reviewed-by: NKever Yang <kever.yang@rock-chips.com>

arch/arm/dts/rk3328-rock64-u-boot.dtsi

@@ -11,6 +11,22 @@
 	};
 };
 
+&gpio0 {
+	u-boot,dm-spl;
+};
+
+&pinctrl {
+	u-boot,dm-spl;
+};
+
+&sdmmc0m1_gpio {
+	u-boot,dm-spl;
+};
+
+&pcfg_pull_up_4ma {
+	u-boot,dm-spl;
+};
+
 &usb_host0_xhci {
 	vbus-supply = <&vcc_host_5v>;
 	status = "okay";
@@ -25,3 +41,8 @@
 	/delete-property/ regulator-always-on;
 	/delete-property/ regulator-boot-on;
 };
+
+/* Need this and all the pinctrl/gpio stuff above to set pinmux */
+&vcc_sd {
+	u-boot,dm-spl;
+};

configs/rock64-rk3328_defconfig

 CONFIG_ARM=y
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_TEXT_BASE=0x00200000
+CONFIG_SPL_GPIO_SUPPORT=y
 CONFIG_ENV_OFFSET=0x3F8000
 CONFIG_ROCKCHIP_RK3328=y
 CONFIG_TPL_ROCKCHIP_COMMON_BOARD=y
@@ -25,6 +26,8 @@ CONFIG_DISPLAY_BOARDINFO_LATE=y
 # CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
 CONFIG_TPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_STACK_R=y
+CONFIG_SPL_I2C_SUPPORT=y
+CONFIG_SPL_POWER_SUPPORT=y
 CONFIG_SPL_ATF=y
 CONFIG_SPL_ATF_NO_PLATFORM_PARAM=y
 CONFIG_CMD_BOOTZ=y
@@ -36,7 +39,7 @@ CONFIG_CMD_TIME=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_TPL_OF_CONTROL=y
 CONFIG_DEFAULT_DEVICE_TREE="rk3328-rock64"
-CONFIG_OF_SPL_REMOVE_PROPS="pinctrl-0 pinctrl-names clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
+CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
 CONFIG_TPL_OF_PLATDATA=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
@@ -64,7 +67,9 @@ CONFIG_PINCTRL=y
 CONFIG_SPL_PINCTRL=y
 CONFIG_DM_PMIC=y
 CONFIG_PMIC_RK8XX=y
+CONFIG_SPL_DM_REGULATOR=y
 CONFIG_REGULATOR_PWM=y
+CONFIG_SPL_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_REGULATOR_RK8XX=y
 CONFIG_PWM_ROCKCHIP=y