[PATCH v3 5/6] ARM: sunxi: Introduce mach-sunxi

[Jules Maselbas <jmaselbas@zdiv.net>]

Add some boilerplate, Makefiles, Kbuild.
A generic barebox-dt-2nd.img image can be build for A64 SoC using
the multi_v8_defconfig.

This image can be booted from u-boot and has been tested on Pine64+,
it should work on other A64 SoC such as the pinephone, and other Pine64
boards, it might also work on H6 SoC which uses the same sd/mmc controler.

Signed-off-by: Jules Maselbas <jmaselbas@zdiv.net>
---
v1->v2:
 - removed RELOCATABLE and HAVE_PBL_MULTI_IMAGES from Kconfig (Ahmad)
 - used __dummy__.o insead of an empty file (Ahmad)
 - removed include/mach/sunxi/barebox-arm.h (Ahmad)
v2->v3:
 - add arch sun50i-a64 + mci driver to the multi_v8_defconfig (Sascha)
 - remove the sunxi_v8_defconfig

 arch/arm/Kconfig                    | 12 ++++++++++++
 arch/arm/Makefile                   |  1 +
 arch/arm/configs/multi_v8_defconfig |  2 ++
 arch/arm/mach-sunxi/Kconfig         | 13 +++++++++++++
 arch/arm/mach-sunxi/Makefile        |  1 +
 5 files changed, 29 insertions(+)
 create mode 100644 arch/arm/mach-sunxi/Kconfig
 create mode 100644 arch/arm/mach-sunxi/Makefile

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2e52ed7b50..3d8f2eeca7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -173,6 +173,17 @@ config ARCH_K3
 	select COMMON_CLK_OF_PROVIDER
 	select PM_GENERIC_DOMAINS
 
+config ARCH_SUNXI
+	bool "Allwinner (sunxi) SoCs"
+	depends on ARCH_MULTIARCH
+	select CLKDEV_LOOKUP
+	select COMMON_CLK
+	select COMMON_CLK_OF_PROVIDER
+	select GPIOLIB
+	select OFDEVICE
+	select OFTREE
+	select PINCTRL
+
 config ARCH_LAYERSCAPE
 	bool "NXP Layerscape based"
 	depends on ARCH_MULTIARCH
@@ -259,6 +270,7 @@ source "arch/arm/mach-omap/Kconfig"
 source "arch/arm/mach-pxa/Kconfig"
 source "arch/arm/mach-rockchip/Kconfig"
 source "arch/arm/mach-socfpga/Kconfig"
+source "arch/arm/mach-sunxi/Kconfig"
 source "arch/arm/mach-stm32mp/Kconfig"
 source "arch/arm/mach-versatile/Kconfig"
 source "arch/arm/mach-vexpress/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 270f5dfdc1..e4041cf715 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -102,6 +102,7 @@ machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip
 machine-$(CONFIG_ARCH_SAMSUNG)		+= samsung
 machine-$(CONFIG_ARCH_SOCFPGA)		+= socfpga
 machine-$(CONFIG_ARCH_STM32MP)		+= stm32mp
+machine-$(CONFIG_ARCH_SUNXI)		+= sunxi
 machine-$(CONFIG_ARCH_VERSATILE)	+= versatile
 machine-$(CONFIG_ARCH_VEXPRESS)		+= vexpress
 machine-$(CONFIG_ARCH_TEGRA)		+= tegra
diff --git a/arch/arm/configs/multi_v8_defconfig b/arch/arm/configs/multi_v8_defconfig
index 20bd0575f5..b1e66e85f4 100644
--- a/arch/arm/configs/multi_v8_defconfig
+++ b/arch/arm/configs/multi_v8_defconfig
@@ -3,6 +3,7 @@ CONFIG_ARCH_IMX=y
 CONFIG_ARCH_K3=y
 CONFIG_ARCH_LAYERSCAPE=y
 CONFIG_ARCH_ROCKCHIP=y
+CONFIG_ARCH_SUN50I_A64=y
 CONFIG_ARCH_ZYNQMP=y
 CONFIG_MACH_KOENIGBAUER_ALPHAJET=y
 CONFIG_MACH_INNOCOMM_WB15=y
@@ -207,6 +208,7 @@ CONFIG_MCI=y
 CONFIG_MCI_MMC_BOOT_PARTITIONS=y
 CONFIG_MCI_DW=y
 CONFIG_MCI_ROCKCHIP_DWCMSHC=y
+CONFIG_MCI_SUNXI_SMHC=y
 CONFIG_MCI_IMX_ESDHC=y
 CONFIG_MCI_ARASAN=y
 CONFIG_COMMON_CLK_SCMI=y
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
new file mode 100644
index 0000000000..4fdd0877bf
--- /dev/null
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -0,0 +1,13 @@
+menu "Allwinner (sunxi) boards"
+        depends on ARCH_SUNXI
+
+config ARCH_SUN50I_A64
+	bool "Allwinner A64 SoC"
+	select CPU_V8
+	select CPU_SUPPORTS_64BIT_KERNEL
+	select CLOCKSOURCE_ARM_ARCHITECTED_TIMER
+	select PINCTRL_SUN50I_A64
+	depends on 64BIT
+	default y
+
+endmenu
diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile
new file mode 100644
index 0000000000..16a218658a
--- /dev/null
+++ b/arch/arm/mach-sunxi/Makefile
@@ -0,0 +1 @@
+obj- := __dummy__.o
-- 
2.48.1