fdt_support: Add a fdt_setup_simplefb_node helper function

Add a generic helper to fill and enable simplefb nodes.

The first user of this will be the sunxi display code.

lcd_dt_simplefb_configure_node is also a good candidate to be converted
to use this, but that requires someone to run some tests first, as
lcd_dt_simplefb_configure_node does not honor #address-cells and #size-cells,
but simply assumes 1 and 1 for both.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
common/lcd: Make lcd_dt_simplefb_configure_node use fdt_setup_simplefb_node

Change lcd_dt_simplefb_configure_node into a wrapper around the new generic
fdt_setup_simplefb_node helper function.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
sunxi: video: Add simplefb support

Add simplefb support, note this depends on the kernel having support for
the clocks property which has recently been added to the simplefb devicetree
binding.

Signed-off-by: Luc Verhaegen <libv@skynet.be>
[hdegoede@redhat.com: Use pre-populated simplefb node under /chosen as
 disussed on the devicetree list]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>.
sunxi: Add usb keyboard Kconfig option

For use together with the hdmi console.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sunxi: Undef CONFIG_OF_LIBFDT when OLD_SUNXI_KERNEL_COMPAT is set

Otherwise booting will fail if there is no fdt (which there is not with
old kernels).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sunxi: video: Add some extra modes

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sun6i: Make dram clk and zq value Kconfig options

It turns out that there is a too large spread between boards to handle this
with a default value, turn this into Kconfig options, and set the values
the factory images are using for the Colombus and Mele_M9 boards.

Note this changes the ZQ default when not overriden through defconfig from
120 to 123, as that is what most boards seem to actually use.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sun6i: Add sunxi_get_ss_bonding_id() function

Add a sunxi_get_ss_bonding_id() function, and use it to differentiate between
the A31s and the A31.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
sun6i: dram: Do not try to initialize a second dram chan on A31s

The A31s only has one dram channel, so do not bother with trying to initialize
a second channel.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sun6i: Drop some "unknown magic" from dram init

Allwinner tells us that this bit of code is the rtc ram being used to detect
coming out of "super-standby" mode, and if that is the case, going out of
self-refresh mode.

Since we do not support "super-standby" mode, this can be dropped.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
sun6i: Add new CSQ_CS908 board

The CSQ CS908 is an A31s based top-set box, with 1G RAM, 8G NAND,
rtl8188etv usb wifi, 2 USB A receptacles (1 connected through the OTG
controller), ethernet, 3.5 mm jack with a/v out and hdmi out:

http://www.geekbuying.com/item/CS908-Allwinner-A31S-Quad-Core-1-2GHz-Android-4-4-Mini-TV-Box-HDMI-HDD-Player-1G-8G-WIFI-Miracast---Black-333395.html

Note it has no sdcard slot and therefore can only be fel booted.

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