Replace CONFIG_MPC837x with a proper CONFIG_ARCH_MPC837X Kconfig option.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

Replace CONFIG_MPC836* with proper CONFIG_ARCH_MPC836* Kconfig options.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

Replace CONFIG_MPC834* with proper CONFIG_ARCH_MPC834* Kconfig options.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

Replace CONFIG_MPC832* with proper CONFIG_ARCH_MPC832* Kconfig options.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

Replace CONFIG_MPC833* with proper CONFIG_ARCH_MPC833* Kconfig options.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

Replace CONFIG_MPC830* with proper CONFIG_ARCH_MPC830* Kconfig options.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

Add a RAM driver for the MPC83xx architecture.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

Remove duplicated SDRAM_INTERVAL_BSTOPRE from mpc83xx.h,
which has been defined in fsl_ddr_sdram.h

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>

Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>