MIPS: allow CONFIG_SYS_INIT_SP_ADDR to define initial stack base

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
MIPS: add support for pre-relocation malloc

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
MIPS: add initial infrastructure for Lantiq platforms

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
MIPS: add support for Lantiq XWAY XRX200 SoC family

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
serial: add UART driver for Lantiq SoC

Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
MIPS: lantiq: xrx200: add platform device for UART

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
MIPS: add Lantiq EASY80920 board

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
MIPS: add support for Lantiq XWAY Danube SoC family

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
MIPS: add Lantiq EASY50712 board

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>