Lines Matching refs:early
175 early during system boot.
189 The early platform interfaces provide platform data to platform device
190 drivers early on during the system boot. The code is built on top of the
191 early_param() command line parsing and can be executed very early on.
193 Example: "earlyprintk" class early serial console in 6 steps
195 1. Registering early platform device data
198 early_platform_add_devices(). In the case of early serial console this
200 at this point will later on be matched against early platform drivers.
206 User specified early platform devices will be registered at this point.
207 For the early serial console case the user can specify port on the
213 3. Installing early platform drivers belonging to a certain class
215 The architecture code may optionally force registration of all early
219 driver example since the early serial driver code should be disabled
228 5. Probing of early platform drivers belonging to a certain class
231 registered early platform devices associated with a certain class with
232 registered early platform drivers. Matched devices will get probed().
233 This step can be executed at any point during the early boot. As soon
236 6. Inside the early platform driver probe()
238 The driver code needs to take special care during early boot, especially
241 it is called at early platform device or at the regular platform device
242 time. The early serial driver performs register_console() at this point.