[linux-2.6-block.git] / Documentation / sh / booting.rst

.. SPDX-License-Identifier: GPL-2.0

DeviceTree Booting
------------------

  Device-tree compatible SH bootloaders are expected to provide the physical
  address of the device tree blob in r4. Since legacy bootloaders did not
  guarantee any particular initial register state, kernels built to
  inter-operate with old bootloaders must either use a builtin DTB or
  select a legacy board option (something other than CONFIG_SH_DEVICE_TREE)
  that does not use device tree. Support for the latter is being phased out
  in favor of device tree.
Commit	Line	Data
44184828 RH	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.