[U-Boot] [PATCH] sunxi: makes an invisible option for H3-like DRAM controllers

[Icenowy Zheng]

Allwinner SoCs after H3 (e.g. A64, H5, R40, V3s) uses a H3-like
DesignWare DRAM controller, which do not have official free DRAM
initialization code, but can use modified dram_sun8i_h3.c.

Add a invisible option for easier DRAM initialization code reuse.

Signed-off-by: Icenowy Zheng <icenowy at aosc.xyz>
---
 arch/arm/include/asm/arch-sunxi/dram.h | 2 +-
 arch/arm/mach-sunxi/Makefile           | 2 +-
 board/sunxi/Kconfig                    | 7 +++++++
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h
index e0be744dba..c5456658a3 100644
--- a/arch/arm/include/asm/arch-sunxi/dram.h
+++ b/arch/arm/include/asm/arch-sunxi/dram.h
@@ -24,7 +24,7 @@
 #include <asm/arch/dram_sun8i_a33.h>
 #elif defined(CONFIG_MACH_SUN8I_A83T)
 #include <asm/arch/dram_sun8i_a83t.h>
-#elif defined(CONFIG_MACH_SUN8I_H3)
+#elif defined(CONFIG_SUNXI_H3_DW_DRAM)
 #include <asm/arch/dram_sun8i_h3.h>
 #elif defined(CONFIG_MACH_SUN9I)
 #include <asm/arch/dram_sun9i.h>
diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile
index e73114ee64..dc737db4b9 100644
--- a/arch/arm/mach-sunxi/Makefile
+++ b/arch/arm/mach-sunxi/Makefile
@@ -48,6 +48,6 @@ obj-$(CONFIG_MACH_SUN7I)	+= dram_sun4i.o
 obj-$(CONFIG_MACH_SUN8I_A23)	+= dram_sun8i_a23.o
 obj-$(CONFIG_MACH_SUN8I_A33)	+= dram_sun8i_a33.o
 obj-$(CONFIG_MACH_SUN8I_A83T)	+= dram_sun8i_a83t.o
-obj-$(CONFIG_MACH_SUN8I_H3)	+= dram_sun8i_h3.o
+obj-$(CONFIG_SUNXI_H3_DW_DRAM)	+= dram_sun8i_h3.o
 obj-$(CONFIG_MACH_SUN9I)	+= dram_sun9i.o
 endif
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index e1d4ab148f..4ddd992684 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -42,6 +42,12 @@ config SUNXI_GEN_SUN6I
 	separate ahb reset control registers, custom pmic bus, new style
 	watchdog, etc.
 
+config SUNXI_H3_DW_DRAM
+	bool
+	---help---
+	Select this for sunxi SoCs which uses a DRAM controller like the
+	DesignWare controller used in H3, mainly SoCs after H3, which do
+	not have official open-source DRAM initialization code.
 
 choice
 	prompt "Sunxi SoC Variant"
@@ -113,6 +119,7 @@ config MACH_SUN8I_H3
 	select ARCH_SUPPORT_PSCI
 	select SUNXI_GEN_SUN6I
 	select SUPPORT_SPL
+	select SUNXI_H3_DW_DRAM
 	select ARMV7_BOOT_SEC_DEFAULT if OLD_SUNXI_KERNEL_COMPAT
 
 config MACH_SUN9I
-- 
2.11.0