Use DT_MACHINE_START() on the r8a7740 based armadillo 800 eva board.

Also include a tiny DTS file to describe the board and update the
Kconfig dependencies to select CONFIG_USE_OF.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

armadillo800eva board is using sh-eth, but clock-r8a7740 didn't care it.
This clock was enabled by boot-loader.
This patch fix it up.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

We can switch CON8/CON14 by SW1.5
SDHI1 is CON8 (SW1.5 = ON)
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

On armadillo800eva board,
CD (= Card Detect) pin is not connected to SDHI0_CD.
Then, we can use IRQ31 as card detect irq,
but it needs chattering removal operation.
We should use IRQ card detect in the future,
but this patch use polling mode at this point.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

This adds very basic armadillo800eva board (R-Mobile A1) support
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NSimon Horman <horms@verge.net.au>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>