tree 25636638413bf967817fca796152a05e41dccdb0
parent 8adec657add70c7b8723d2c6b8ebd56e45300e36
author Pali Rohár <pali@kernel.org> 1661780688 +0200
committer Stefan Roese <sr@denx.de> 1663043888 +0200

arm: mvebu: turris_mox: Add support for distroboot $fdt_addr

$fdt_addr is mandatory for systems which provides DTB in HW (e.g. ROM) and
wishes to pass that DTB to Linux.

Turris Mox contains DTB binary in SPI NOR memory at "dtb" partition which
starts at offset 0x7f0000 and is 0x10000 bytes long.

Armada 3700 CPU does not allow mapping SPI NOR memory into physical address
space like on other architectures and therefore set $fdt_addr variable to
memory range in RAM and loads this DTB binary from SPI NOR in misc_init_r()
function.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>