[U-Boot] [RFC PATCH 1/6] 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 +-
 arch/arm/mach-sunxi/{dram_sun8i_h3.c => dram_sunxi_dw.c} | 0
 board/sunxi/Kconfig                                      | 9 +++++++++
 4 files changed, 11 insertions(+), 2 deletions(-)
 rename arch/arm/mach-sunxi/{dram_sun8i_h3.c => dram_sunxi_dw.c} (100%)

diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h
index 53e6d471d2..1475a80196 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) || defined(CONFIG_MACH_SUN50I)
+#elif defined(CONFIG_SUNXI_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 7daba1169c..25d896a14e 100644
--- a/arch/arm/mach-sunxi/Makefile
+++ b/arch/arm/mach-sunxi/Makefile
@@ -48,7 +48,7 @@ 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_DW_DRAM)	+= dram_sunxi_dw.o
 obj-$(CONFIG_MACH_SUN9I)	+= dram_sun9i.o
 obj-$(CONFIG_MACH_SUN50I)	+= dram_sun8i_h3.o
 endif
diff --git a/arch/arm/mach-sunxi/dram_sun8i_h3.c b/arch/arm/mach-sunxi/dram_sunxi_dw.c
similarity index 100%
rename from arch/arm/mach-sunxi/dram_sun8i_h3.c
rename to arch/arm/mach-sunxi/dram_sunxi_dw.c
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 018bdd12dd..d09ae6067e 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -42,6 +42,13 @@ config SUNXI_GEN_SUN6I
 	separate ahb reset control registers, custom pmic bus, new style
 	watchdog, etc.
 
+config SUNXI_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, but can
+	use modified H3 DRAM initialization code.
 
 choice
 	prompt "Sunxi SoC Variant"
@@ -113,6 +120,7 @@ config MACH_SUN8I_H3
 	select ARCH_SUPPORT_PSCI
 	select SUNXI_GEN_SUN6I
 	select SUPPORT_SPL
+	select SUNXI_DW_DRAM
 	select ARMV7_BOOT_SEC_DEFAULT if OLD_SUNXI_KERNEL_COMPAT
 
 config MACH_SUN8I_V3S
@@ -134,6 +142,7 @@ config MACH_SUN50I
 	select ARM64
 	select SUNXI_GEN_SUN6I
 	select SUPPORT_SPL
+	select SUNXI_DW_DRAM
 
 endchoice
 
-- 
2.11.0