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 both a BQ Curie2 (rk3066a / dual core) and
on a Radxa Rock (rk3188 / quad core).
As this version again involves bigger changes to the way reserved sram-
regions are handled, I've dropped the ACKs I had for binding and driver
changes again and therefore would be very happy if I could get new ones
if applicable (dt-maintainers and Philipp Zabel for sram.c).
changes since v7:
- move reserved sram regions to be described through subnodes, similar
to the general memory-reserve bindings, as suggested by Grant Likely.
changes since v6:
- address comments from Mark Rutland
- using of_property_read_u32_index instead of parsing the list manually
- include v4 of "of: add functions to count number of elements in a property"
to not have to count property-elements manually anymore
changes since v5:
- Grant Likely liked it better to "specify reserved regions of the
memory instead of the valid ranges", so go back to the mmio-sram-reserved
property originally suggested by Rob Herring
changes since v4:
- rebase on top of the recent rk3188 board support
- implement suggestion from Matt Sealey in moving the sram-limit from
marking reserved regions to marking available regions - hopefully
I got the usage right
- remove __CPUINIT as suggested by Fabio Estevam
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):
dt-bindings: sram: describe option to reserve parts of the memory
misc: sram: implement reserved sram areas
ARM: rockchip: add snoop-control-unit
ARM: rockchip: add sram dt nodes and documentation
ARM: rockchip: add power-management-unit
ARM: rockchip: add smp bringup code
.../devicetree/bindings/arm/rockchip/pmu.txt | 16 ++
.../devicetree/bindings/arm/rockchip/smp-sram.txt | 30 ++++
Documentation/devicetree/bindings/misc/sram.txt | 33 ++++
arch/arm/boot/dts/rk3066a.dtsi | 13 ++
arch/arm/boot/dts/rk3188.dtsi | 13 ++
arch/arm/boot/dts/rk3xxx.dtsi | 10 ++
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 | 30 ++++
arch/arm/mach-rockchip/platsmp.c | 184 +++++++++++++++++++++
arch/arm/mach-rockchip/rockchip.c | 2 +
drivers/misc/sram.c | 125 +++++++++++++-
13 files changed, 473 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
--
1.8.5.3
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