Documentation/sh/booting.rst

   1 .. SPDX-License-Identifier: GPL-2.0
   2
   3 DeviceTree Booting
   4 ------------------
   5
   6   Device-tree compatible SH bootloaders are expected to provide the physical
   7   address of the device tree blob in r4. Since legacy bootloaders did not
   8   guarantee any particular initial register state, kernels built to
   9   inter-operate with old bootloaders must either use a builtin DTB or
  10   select a legacy board option (something other than CONFIG_SH_DEVICE_TREE)
  11   that does not use device tree. Support for the latter is being phased out
  12   in favor of device tree.