[U-Boot] [PATCH 00/10] sunxi: PSCI implementation rewrite in C

[Chen-Yu Tsai]

Hi everyone,

This series rewrites the Allwinner/sunxi PSCI implementation in C, to make
it easier to maintain and extend for the currently unsupported multi-cluster
SoCs. The SMP code in the BSP kernels are in C. Having the PSCI code in C
as well will make it easier to work on.

To be able to convert the platform bits to C, some common PSCI functions
have to be fixed up according to the ARM calling conventions. Function
declarations are also needed.

This series is based on sunxi/next. Parts of it will likely conflict with
the effort to support PSCI 1.0 on the Freescale LS102xA.

Patch 1 fixes up psci_get_cpu_stack_top.

Patch 2 fixes up the PSCI version of v7_flush_dcache_all.

Patch 3 adds function declarations for some of the common PSCI functions.

Patch 4 fixes issues with reserving memory for the secure section.

Patch 5 unifies the CPUCFG_BASE macro names for various sunxi platforms.

Patch 6 groups cpu core related controls together into one struct per core.
This makes it straightforward to access the controls by the cpu index.

Patch 7 adds a missing header to cpucfg.h

Patch 8 adds some missing fields to cpucfg, which were used in the assembly
code.

Patch 9 adds the base address for the GIC.

Patch 10 is the new PSCI implementation in C. Almost all of the code is
converted, with the exception of initial setup of the stack.


Regards
ChenYu


Chen-Yu Tsai (10):
  ARM: PSCI: use only r0 and r3 in psci_get_cpu_stack_top()
  ARM: PSCI: save and restore clobbered registers in v7_flush_dcache_all
  ARM: PSCI: export common PSCI function declarations for C code
  ARM: allocate extra space for PSCI stack in secure section during link
    phase
  sunxi: Make CPUCFG_BASE macro names the same across families
  sunxi: Group cpu core related controls together
  sunxi: Add missing linux/types.h header for cpucfg.h
  sunxi: Add CPUCFG debug lock and sun7i cpu power controls
  sunxi: Add base address for GIC
  sunxi: Add PSCI implementation in C

 arch/arm/cpu/armv7/psci.S                          |  20 +-
 arch/arm/cpu/armv7/sunxi/Makefile                  |   7 +-
 arch/arm/cpu/armv7/sunxi/psci.c                    | 229 ++++++++++++++++++
 arch/arm/cpu/armv7/sunxi/psci_head.S               |  61 +++++
 arch/arm/cpu/armv7/sunxi/psci_sun6i.S              | 262 ---------------------
 arch/arm/cpu/armv7/sunxi/psci_sun7i.S              | 237 -------------------
 arch/arm/cpu/u-boot.lds                            |   3 +
 arch/arm/include/asm/arch-sunxi/cpu_sun4i.h        |  17 +-
 .../asm/arch-sunxi/{cpucfg_sun6i.h => cpucfg.h}    |  38 +--
 arch/arm/include/asm/arch-sunxi/prcm.h             |   6 +-
 arch/arm/include/asm/psci.h                        |   8 +
 11 files changed, 350 insertions(+), 538 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/sunxi/psci.c
 create mode 100644 arch/arm/cpu/armv7/sunxi/psci_head.S
 delete mode 100644 arch/arm/cpu/armv7/sunxi/psci_sun6i.S
 delete mode 100644 arch/arm/cpu/armv7/sunxi/psci_sun7i.S
 rename arch/arm/include/asm/arch-sunxi/{cpucfg_sun6i.h => cpucfg.h} (69%)

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2.8.1