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>

1 files changed, 29 insertions, 0 deletions

diff --git a/board/sunxi/dram_sun4i_auto.c b/board/sunxi/dram_sun4i_auto.c
new file mode 100644
index 0000000..826bacf
--- /dev/null
+++ b/board/sunxi/dram_sun4i_auto.c
@@ -0,0 +1,29 @@
+#include <common.h>
+#include <asm/arch/dram.h>
+
+static struct dram_para dram_para = {
+	.clock = CONFIG_DRAM_CLK,
+	.type = 3,
+	.rank_num = 1,
+	.density = 0,
+	.io_width = 0,
+	.bus_width = 0,
+	.cas = 6,
+	.zq = CONFIG_DRAM_ZQ,
+	.odt_en = 0,
+	.size = 0,
+	.tpr0 = 0x30926692,
+	.tpr1 = 0x1090,
+	.tpr2 = 0x1a0c8,
+	.tpr3 = 0,
+	.tpr4 = 0,
+	.tpr5 = 0,
+	.emr1 = CONFIG_DRAM_EMR1,
+	.emr2 = 0,
+	.emr3 = 0,
+};
+
+unsigned long sunxi_dram_init(void)
+{
+	return dramc_init(&dram_para);
+}