the existing code was very platform specific, and broken for SMP systems
trying to reboot from KDB.
- Add a new PLATFORM_RESET() method to the platform KOBJ interface, and
migrate existing reset functions into platform modules.
- Modify the OF_reboot() routine to submit the request by hand to avoid
the IPIs involved in the regular openfirmware() routine. This fixes
reboot from KDB on SMP machines.
- Move non-KDB reset and poweroff functions on the Powermac platform
into the relevant power control drivers (cuda, pmu, smu), instead of
using them through the Open Firmware backdoor.
- Rename platform_chrp to platform_powermac since it has become
increasingly Powermac specific. When we gain support for IBM systems,
we will grow a new platform_chrp.
The following systems are affected:
- MPC8555CDS
- MPC8572DS
This overhaul covers the following major changes:
- All integrated peripherals drivers for Freescale MPC85XX SoC, which are
currently in the FreeBSD source tree are reworked and adjusted so they
derive config data out of the device tree blob (instead of hard coded /
tabelarized values).
- This includes: LBC, PCI / PCI-Express, I2C, DS1553, OpenPIC, TSEC, SEC,
QUICC, UART, CFI.
- Thanks to the common FDT infrastrucutre (fdtbus, simplebus) we retire
ocpbus(4) driver, which was based on hard-coded config data.
Note that world for these platforms has to be built WITH_FDT.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
- Make LBC resources management self-contained: introduce explicit LBC
resources definition (much like the OCP), provide dedicated rman for LB mem
space.
- Full configuration of an LB chip select device: program LAW and BR/OR, map
into KVA, handle all LB attributes (bus width, machine select, ecc,
write protect etc).
- Factor out LAW manipulation routines into shared code, adjust OCP area
accordingly.
- Other LBC fixes and clean-ups.
Obtained from: Semihalf
o The function is defined unconditionally but depends on SPR_SVR,
which is defined conditionally.
o spr.h defines mfspr() and mtspr(), which is no worse to use.
