ARM: rockchip: add smp functionality
From: Heiko Stuebner <heiko@...> Date: Thu, 4 Jul 2013 22:52:02 +0200
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 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 | 79 +++++++- 11 files changed, 398 insertions(+), 5 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
Patches in this set
- [0001] misc: sram: fix error path in sram_probe (raw)
- [0002] misc: sram: add ability to mark sram sections as reserved (raw)
- [0003] ARM: rockchip: add snoop-control-unit (raw)
- [0004] ARM: rockchip: add sram dt nodes and documentation (raw)
- [0005] ARM: rockchip: add power-management-unit dt node (raw)
- [0006] ARM: rockchip: add smp bringup code (raw)
Statistics
- 6 individual patches
- 400 lines added
- 7 lines removed