mach-sunxi: Add support for SUNIV architecture

Add support for the suniv architecture, which is newer ARM9 SoCs by
Allwinner. The design of it seems to be a mixture of sun3i, sun4i and
sun6i.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 6e1f346..205fe3c 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -1,6 +1,7 @@
 if ARCH_SUNXI
 
 config SPL_LDSCRIPT
+	default "arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds" if MACH_SUNIV
 	default "arch/arm/cpu/armv7/sunxi/u-boot-spl.lds" if !ARM64
 
 config IDENT_STRING
@@ -183,6 +184,12 @@
 	prompt "Sunxi SoC Variant"
 	optional
 
+config MACH_SUNIV
+	bool "suniv (Allwinner F1C100s/F1C200s/F1C600/R6)"
+	select CPU_ARM926EJS
+	select SUNXI_GEN_SUN6I
+	select SUPPORT_SPL
+
 config MACH_SUN4I
 	bool "sun4i (Allwinner A10)"
 	select CPU_V7A
@@ -589,6 +596,7 @@
 endif
 
 config SYS_CLK_FREQ
+	default 408000000 if MACH_SUNIV
 	default 1008000000 if MACH_SUN4I
 	default 1008000000 if MACH_SUN5I
 	default 1008000000 if MACH_SUN6I
@@ -600,6 +608,7 @@
 	default 1008000000 if MACH_SUN50I_H616
 
 config SYS_CONFIG_NAME
+	default "suniv" if MACH_SUNIV
 	default "sun4i" if MACH_SUN4I
 	default "sun5i" if MACH_SUN5I
 	default "sun6i" if MACH_SUN6I
@@ -817,7 +826,7 @@
 
 config VIDEO_HDMI
 	bool "HDMI output support"
-	depends on VIDEO_SUNXI && !MACH_SUN8I
+	depends on VIDEO_SUNXI && !MACH_SUN8I && !MACH_SUNIV
 	default y
 	---help---
 	Say Y here to add support for outputting video over HDMI.
@@ -1017,6 +1026,7 @@
 	Set the GMAC Transmit Clock Delay Chain value.
 
 config SPL_STACK_R_ADDR
+	default 0x81e00000 if MACH_SUNIV
 	default 0x4fe00000 if MACH_SUN4I
 	default 0x4fe00000 if MACH_SUN5I
 	default 0x4fe00000 if MACH_SUN6I