With multiboard support the compiletime generated BOARDINFO string
gets more and more meaningless. This removes it from Kconfig and
replaces it with a variable that can be set at boardlevel.

Also many boards have a standard setting for the hostname in the
environment. This patch also moves the standard to C code by calling
barebox_set_hostname().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

The Tegra arch will be fully based on device tree and most boards
shouldn't need anything more than the generic drivers and arch code.

This adds generic tegra20 board support, but since we currently have
no way to combine an image with a devicetree other than compiling it
into the single image we also add Colibri T20 on Iris support here
and add a defconfig for it.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

This adds a pinctrl driver for the Tegra 20 line of SoCs. It only
supports the three basic pinconfiguration settings function mux,
tristate control and pullup/down control.

The driver understands the same devicetree bindings as the Linux one,
unimplemented pinconfiguration options will be ignored.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ODMdata tells us which UART to use for debugging purposes. This is
agreed upon in both the upstream Linux kernel and U-Boot, so do it the
same way in barebox.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Tested-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

All available opensource tools and published BCT configurations use
0x10800 as the default textbase on Tegra 20.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Tested-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Tegra isn't a single architecture, but a collection of more or less
similar chip families. Introduce the same conf define as used in the
Linux kernel to differentiate between those families.

Currently we are only supporting the Tegra20 chip type.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Tested-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>