sunxi: Stop differentiating between 512M and 1G variants of the same board

While working on adding more boards I noticed that we lack a config for
the 512M cubieboard, and that some of the new boards which I want to add also
have 512M and 1G variants, rather then adding 2 defconfig's for all of these,
lets switch the exising boards which have both a 512M and 1024M variant over
to the sun4i dram autoconfig code.

This also drops the foo_RAMSIZE_defconfig variants of boards where we currently
have 2 separate configs already.

Note:
1) The newly introduced CONFIG_DRAM_EMR1 kconfig value is not used with
a value other then its default for now, but we need this to be configurable
to support some new boards with auto dram config.

2) We always set all CONFIG_DRAM_foo values in defconfigs, even if they match
the defaults, this is done to make it more clear what values are used for a
certain board.

This has been tested on a Mele A1000, Mini-X and a Cubieboard, all 1G
variants, the dram autoconfig code has also been tested on a 512M mk802
(a defconfig for the mk802 is added in a later patch).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

arch/arm/include/asm/arch-sunxi/dram_sun4i.h

@@ -76,7 +76,7 @@ struct dram_para {
 	u32 cas;
 	u32 zq;
 	u32 odt_en;
-	u32 size;
+	u32 size; /* For compat with dram.c files from u-boot-sunxi, unused */
 	u32 tpr0;
 	u32 tpr1;
 	u32 tpr2;

board/sunxi/Kconfig

@@ -33,21 +33,31 @@ config MACH_SUN8I
 
 endchoice
 
-if MACH_SUN6I || MACH_SUN8I
-
 config DRAM_CLK
-	int "sun6i dram clock speed"
+	int "sunxi dram clock speed"
-	default 312
+	default 312 if MACH_SUN6I || MACH_SUN8I
+	default 360 if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
 	---help---
 	Set the dram clock speed, valid range 240 - 480, must be a multiple
-	of 24.
+	of 24. Note on sun4i / sun5i / sun7i this is only used by boards
+	which use dram autoconfig.
 
 config DRAM_ZQ
-	int "sun6i dram zq value"
+	int "sunxi dram zq value"
-	default 123
+	default 123 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || MACH_SUN8I
+	default 127 if MACH_SUN7I
 	---help---
-	Set the dram zq value.
+	Set the dram zq value. Note on sun4i / sun5i / sun7i this is only
+	used by boards which use dram autoconfig.
 
+if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
+config DRAM_EMR1
+	int "sunxi dram emr1 value"
+	default 0 if MACH_SUN4I
+	default 4 if MACH_SUN5I || MACH_SUN7I
+	---help---
+	Set the dram controller emr1 value. Note this is only used by boards
+	which use dram autoconfig.
 endif
 
 config SYS_CONFIG_NAME
@@ -132,10 +142,6 @@ config TARGET_PCDUINO3
 	bool "PCDUINO3"
 	depends on MACH_SUN7I
 
-config TARGET_MELE_A1000G
-	bool "MELE_A1000G"
-	depends on MACH_SUN4I
-
 config TARGET_MELE_A1000
 	bool "MELE_A1000"
 	depends on MACH_SUN4I
@@ -148,10 +154,6 @@ config TARGET_MELE_M9
 	bool "MELE_M9"
 	depends on MACH_SUN6I
 
-config TARGET_MINI_X_1GB
-	bool "MINI_X_1GB"
-	depends on MACH_SUN4I
-
 config TARGET_MINI_X
 	bool "MINI_X"
 	depends on MACH_SUN4I

board/sunxi/MAINTAINERS

@@ -7,10 +7,8 @@ F:	configs/A10-OLinuXino-Lime_defconfig
 F:	configs/ba10_tv_box_defconfig
 F:	configs/Cubieboard_defconfig
 F:	configs/Mele_A1000_defconfig
-F:	configs/Mele_A1000G_defconfig
 F:	configs/Mele_M3_defconfig
 F:	configs/Mini-X_defconfig
-F:	configs/Mini-X-1Gb_defconfig
 F:	include/configs/sun5i.h
 F:	configs/A10s-OLinuXino-M_defconfig
 F:	configs/A13-OLinuXino_defconfig

board/sunxi/Makefile

@@ -23,15 +23,13 @@ obj-$(CONFIG_TARGET_AUXTEK_T004)	+= dram_a10s_olinuxino_m.o
 obj-$(CONFIG_TARGET_BA10_TV_BOX)	+= dram_sun4i_384_1024_iow8.o
 obj-$(CONFIG_TARGET_BANANAPI)		+= dram_bananapi.o
 obj-$(CONFIG_TARGET_BANANAPRO)		+= dram_bananapi.o
-obj-$(CONFIG_TARGET_CUBIEBOARD)		+= dram_cubieboard.o
+obj-$(CONFIG_TARGET_CUBIEBOARD)		+= dram_sun4i_auto.o
 obj-$(CONFIG_TARGET_CUBIEBOARD2)	+= dram_cubieboard2.o
 obj-$(CONFIG_TARGET_CUBIETRUCK)		+= dram_cubietruck.o
 obj-$(CONFIG_TARGET_I12_TVBOX)		+= dram_sun7i_384_1024_iow16.o
-obj-$(CONFIG_TARGET_MELE_A1000)		+= dram_sun4i_360_512.o
+obj-$(CONFIG_TARGET_MELE_A1000)		+= dram_sun4i_auto.o
-obj-$(CONFIG_TARGET_MELE_A1000G)	+= dram_sun4i_360_1024_iow8.o
 obj-$(CONFIG_TARGET_MELE_M3)		+= dram_sun7i_384_1024_iow16.o
-obj-$(CONFIG_TARGET_MINI_X)		+= dram_sun4i_360_512.o
+obj-$(CONFIG_TARGET_MINI_X)		+= dram_sun4i_auto.o
-obj-$(CONFIG_TARGET_MINI_X_1GB)		+= dram_sun4i_360_1024_iow16.o
 obj-$(CONFIG_TARGET_MSI_PRIMO73)	+= dram_sun7i_384_1024_iow16.o
 obj-$(CONFIG_TARGET_PCDUINO)		+= dram_sun4i_408_1024_iow8.o
 obj-$(CONFIG_TARGET_PCDUINO3)		+= dram_linksprite_pcduino3.o

board/sunxi/dram_cubieboard.c

@@ -1,31 +0,0 @@
-/* this file is generated, don't edit it yourself */
-
-#include <common.h>
-#include <asm/arch/dram.h>
-
-static struct dram_para dram_para = {
-	.clock = 480,
-	.type = 3,
-	.rank_num = 1,
-	.density = 4096,
-	.io_width = 16,
-	.bus_width = 32,
-	.cas = 6,
-	.zq = 123,
-	.odt_en = 0,
-	.size = 1024,
-	.tpr0 = 0x30926692,
-	.tpr1 = 0x1090,
-	.tpr2 = 0x1a0c8,
-	.tpr3 = 0,
-	.tpr4 = 0,
-	.tpr5 = 0,
-	.emr1 = 0,
-	.emr2 = 0,
-	.emr3 = 0,
-};
-
-unsigned long sunxi_dram_init(void)
-{
-	return dramc_init(&dram_para);
-}

board/sunxi/dram_sun4i_360_1024_iow16.c

@@ -1,31 +0,0 @@
-/* this file is generated, don't edit it yourself */
-
-#include <common.h>
-#include <asm/arch/dram.h>
-
-static struct dram_para dram_para = {
-	.clock = 360,
-	.type = 3,
-	.rank_num = 1,
-	.density = 4096,
-	.io_width = 16,
-	.bus_width = 32,
-	.cas = 6,
-	.zq = 123,
-	.odt_en = 0,
-	.size = 1024,
-	.tpr0 = 0x30926692,
-	.tpr1 = 0x1090,
-	.tpr2 = 0x1a0c8,
-	.tpr3 = 0,
-	.tpr4 = 0,
-	.tpr5 = 0,
-	.emr1 = 0,
-	.emr2 = 0,
-	.emr3 = 0,
-};
-
-unsigned long sunxi_dram_init(void)
-{
-	return dramc_init(&dram_para);
-}

board/sunxi/dram_sun4i_360_512.c

@@ -1,31 +0,0 @@
-/* this file is generated, don't edit it yourself */
-
-#include <common.h>
-#include <asm/arch/dram.h>
-
-static struct dram_para dram_para = {
-	.clock = 360,
-	.type = 3,
-	.rank_num = 1,
-	.density = 2048,
-	.io_width = 16,
-	.bus_width = 32,
-	.cas = 6,
-	.zq = 123,
-	.odt_en = 0,
-	.size = 512,
-	.tpr0 = 0x30926692,
-	.tpr1 = 0x1090,
-	.tpr2 = 0x1a0c8,
-	.tpr3 = 0,
-	.tpr4 = 0,
-	.tpr5 = 0,
-	.emr1 = 0,
-	.emr2 = 0,
-	.emr3 = 0,
-};
-
-unsigned long sunxi_dram_init(void)
-{
-	return dramc_init(&dram_para);
-}

board/sunxi/dram_sun4i_auto.c

@@ -1,26 +1,24 @@
-/* this file is generated, don't edit it yourself */
-
 #include <common.h>
 #include <asm/arch/dram.h>
 
 static struct dram_para dram_para = {
-	.clock = 360,
+	.clock = CONFIG_DRAM_CLK,
 	.type = 3,
 	.rank_num = 1,
-	.density = 2048,
+	.density = 0,
-	.io_width = 8,
+	.io_width = 0,
-	.bus_width = 32,
+	.bus_width = 0,
 	.cas = 6,
-	.zq = 123,
+	.zq = CONFIG_DRAM_ZQ,
 	.odt_en = 0,
-	.size = 1024,
+	.size = 0,
 	.tpr0 = 0x30926692,
 	.tpr1 = 0x1090,
 	.tpr2 = 0x1a0c8,
 	.tpr3 = 0,
 	.tpr4 = 0,
 	.tpr5 = 0,
-	.emr1 = 0,
+	.emr1 = CONFIG_DRAM_EMR1,
 	.emr2 = 0,
 	.emr3 = 0,
 };

configs/Cubieboard_defconfig

@@ -5,3 +5,6 @@ CONFIG_FDTFILE="sun4i-a10-cubieboard.dtb"
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN4I=y
 +S:CONFIG_TARGET_CUBIEBOARD=y
++S:CONFIG_DRAM_CLK=480
++S:CONFIG_DRAM_ZQ=123
++S:CONFIG_DRAM_EMR1=0

configs/Mele_A1000G_defconfig

@@ -1,8 +0,0 @@
-CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_EMAC,MACPWR=SUNXI_GPH(15),AHCI,USB_EHCI"
-CONFIG_FDTFILE="sun4i-a10-a1000.dtb"
-CONFIG_VIDEO_VGA=y
-+S:CONFIG_ARM=y
-+S:CONFIG_ARCH_SUNXI=y
-+S:CONFIG_MACH_SUN4I=y
-+S:CONFIG_TARGET_MELE_A1000G=y

configs/Mele_A1000_defconfig

@@ -6,3 +6,6 @@ CONFIG_VIDEO_VGA=y
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN4I=y
 +S:CONFIG_TARGET_MELE_A1000=y
++S:CONFIG_DRAM_CLK=360
++S:CONFIG_DRAM_ZQ=123
++S:CONFIG_DRAM_EMR1=0

configs/Mini-X-1Gb_defconfig

@@ -1,7 +0,0 @@
-CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,USB_EHCI"
-CONFIG_FDTFILE="sun4i-a10-mini-xplus.dtb"
-+S:CONFIG_ARM=y
-+S:CONFIG_ARCH_SUNXI=y
-+S:CONFIG_MACH_SUN4I=y
-+S:CONFIG_TARGET_MINI_X_1GB=y

configs/Mini-X_defconfig

@@ -5,3 +5,6 @@ CONFIG_FDTFILE="sun4i-a10-mini-xplus.dtb"
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN4I=y
 +S:CONFIG_TARGET_MINI_X=y
++S:CONFIG_DRAM_CLK=360
++S:CONFIG_DRAM_ZQ=123
++S:CONFIG_DRAM_EMR1=0