| .. 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. |