[PATCH v4 0/6] ARM: rockchip: add smp functionality

[Heiko Stübner]

This series enables the use of the additional cores on Rockchip
Cortex-A9 SoCs.

To achieve this, add the scu, the needed sram and power-management-unit.

Tested on a rk3066a (dual core) by me and on a rk3188 (quad core)
by Ulrich Prinz.

(Note: rk3188 support in general needs additional upcoming patchsets)

changes since v3:
- address comments from Rob Herring:
  - split the gathering of the reserve-data into a separate loop
  - spelling and style fixes
- first patch only included for reference, already part of the
  char-misc git tree

changes since v2:
- rework the sram allocation following the suggestion from Philipp Zabel

changes since v1:
- add reserved block feature for mmio-sram, to not use two logical
  sram nodes
- the sram content is kept intact while the device is running, so
  copying the trampoline is only needed once

Heiko Stuebner (6):
  misc: sram: fix error path in sram_probe
  misc: sram: add ability to mark sram sections as reserved
  ARM: rockchip: add snoop-control-unit
  ARM: rockchip: add sram dt nodes and documentation
  ARM: rockchip: add power-management-unit dt node
  ARM: rockchip: add smp bringup code

 .../devicetree/bindings/arm/rockchip/pmu.txt       |   16 ++
 .../devicetree/bindings/arm/rockchip/smp-sram.txt  |   23 +++
 Documentation/devicetree/bindings/misc/sram.txt    |    8 +
 arch/arm/boot/dts/rk3066a.dtsi                     |   16 ++
 arch/arm/mach-rockchip/Kconfig                     |    1 +
 arch/arm/mach-rockchip/Makefile                    |    1 +
 arch/arm/mach-rockchip/core.h                      |   22 +++
 arch/arm/mach-rockchip/headsmp.S                   |   32 +++
 arch/arm/mach-rockchip/platsmp.c                   |  203 ++++++++++++++++++++
 arch/arm/mach-rockchip/rockchip.c                  |    2 +
 drivers/misc/sram.c                                |  100 +++++++++-
 11 files changed, 417 insertions(+), 7 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/rockchip/pmu.txt
 create mode 100644 Documentation/devicetree/bindings/arm/rockchip/smp-sram.txt
 create mode 100644 arch/arm/mach-rockchip/core.h
 create mode 100644 arch/arm/mach-rockchip/headsmp.S
 create mode 100644 arch/arm/mach-rockchip/platsmp.c

-- 
1.7.10.4