| Rob Herring | 4418482 | 2020-10-08 09:24:20 -0500 | [diff] [blame] | 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. |