sunxi: Drop qt840a_defconfig

The qt840a is one of the many tv-boxes using the "i12" A20 pcb, but it
populates only one of the 2 places for a 16 bit dram ic, thus reducing
the buswidth to 16 bits, and the amount of ram to 512M, which is why we
had a separate config for it.

This commit switches the generic i12-tvbox_defconfig over to DRAM
autoconfiguration, so that it will work with the qt840a too, and drops the
qt840a specific config, like we've done with other memory-amount specific
configs before.

Tested on a generic i12-tvbox with 32 bit bus-width / 1G RAM, and on a
qt840a with 16 bit bus-width / 512M RAM.

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

board/sunxi/Kconfig

@@ -143,10 +143,6 @@ config TARGET_I12_TVBOX
 	bool "I12_TVBOX"
 	depends on MACH_SUN7I
 
-config TARGET_QT840A
-	bool "QT840A"
-	depends on MACH_SUN7I
-
 config TARGET_R7DONGLE
 	bool "R7DONGLE"
 	depends on MACH_SUN5I

board/sunxi/Makefile

@@ -24,10 +24,9 @@ obj-$(CONFIG_TARGET_BANANAPI)		+= dram_bananapi.o
 obj-$(CONFIG_TARGET_BANANAPRO)		+= dram_bananapi.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_I12_TVBOX)		+= dram_sun5i_auto.o
 obj-$(CONFIG_TARGET_MELE_M3)		+= dram_sun7i_384_1024_iow16.o
 obj-$(CONFIG_TARGET_MK802_A10S)		+= dram_sun5i_auto.o
 obj-$(CONFIG_TARGET_MSI_PRIMO73)	+= dram_sun7i_384_1024_iow16.o
 obj-$(CONFIG_TARGET_PCDUINO3)		+= dram_linksprite_pcduino3.o
-obj-$(CONFIG_TARGET_QT840A)		+= dram_sun7i_384_512_busw16_iow16.o
 obj-$(CONFIG_TARGET_R7DONGLE)		+= dram_r7dongle.o

board/sunxi/dram_sun5i_auto.c

@@ -1,4 +1,4 @@
-/* this file is generated, don't edit it yourself */
+/* DRAM parameters for auto dram configuration on sun5i and sun7i */
 
 #include <common.h>
 #include <asm/arch/dram.h>

board/sunxi/dram_sun7i_384_512_busw16_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 = 384,
-	.type = 3,
-	.rank_num = 1,
-	.density = 4096,
-	.io_width = 16,
-	.bus_width = 16,
-	.cas = 9,
-	.zq = 0x7f,
-	.odt_en = 0,
-	.size = 512,
-	.tpr0 = 0x42d899b7,
-	.tpr1 = 0xa090,
-	.tpr2 = 0x22a00,
-	.tpr3 = 0,
-	.tpr4 = 0,
-	.tpr5 = 0,
-	.emr1 = 0x4,
-	.emr2 = 0x10,
-	.emr3 = 0,
-};
-
-unsigned long sunxi_dram_init(void)
-{
-	return dramc_init(&dram_para);
-}

configs/i12-tvbox_defconfig

@@ -5,3 +5,6 @@ CONFIG_FDTFILE="sun7i-a20-i12-tvbox.dtb"
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_I12_TVBOX=y
++S:CONFIG_DRAM_CLK=384
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4

configs/qt840a_defconfig

@@ -1,7 +0,0 @@
-CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_GMAC,MACPWR=SUNXI_GPH(21),USB_EHCI"
-CONFIG_FDTFILE="sun7i-a20-i12-tvbox.dtb"
-+S:CONFIG_ARM=y
-+S:CONFIG_ARCH_SUNXI=y
-+S:CONFIG_MACH_SUN7I=y
-+S:CONFIG_TARGET_QT840A=y