[U-Boot] [PATCH v2 00/11] ARMv7: PSCI: add PSCI v1.0 support

[hb zhang]

This patch set touches other psci drivers, such as

 arch/arm/cpu/armv7/mx7/psci.S              |   7 +-
 arch/arm/cpu/armv7/sunxi/psci_sun6i.S      |   8 +-
 arch/arm/cpu/armv7/sunxi/psci_sun7i.S      |   8 +-
 arch/arm/mach-tegra/psci.S                 |   7 +-

But the changes are quite slightly, take the psci_sun7i.S for example,
changes after all patches are like this:

diff --git a/arch/arm/cpu/armv7/sunxi/psci_sun7i.S
b/arch/arm/cpu/armv7/sunxi/psci_sun7i.S
index e15d587..b0601a7 100644
--- a/arch/arm/cpu/armv7/sunxi/psci_sun7i.S
+++ b/arch/arm/cpu/armv7/sunxi/psci_sun7i.S
@@ -119,14 +119,12 @@ out:      mcr     p15, 0, r7, c1, c1, 0

        @ r1 = target CPU
        @ r2 = target PC
+       @ r3 = target Conetxt ID
 .globl psci_cpu_on
 psci_cpu_on:
        push    {lr}

-       mov     r0, r1
-       bl      psci_get_cpu_stack_top  @ get stack top of target CPU
-       str     r2, [r0]                @ store target PC at stack top
-       dsb
+       bl      psci_cpu_on_common

        movw    r0, #(SUN7I_CPUCFG_BASE & 0xffff)
        movt    r0, #(SUN7I_CPUCFG_BASE >> 16)
@@ -179,7 +177,7 @@ psci_cpu_on:
        orr     r6, r6, r4
        str     r6, [r0, #0x1e4]

-       mov     r0, #ARM_PSCI_RET_SUCCESS       @ Return PSCI_RET_SUCCESS
+       mov     r0, #PSCI_RET_SUCCESS   @ Return PSCI_RET_SUCCESS
        pop     {pc}



On Fri, Apr 8, 2016 at 2:23 PM,  <macro.wave.z at gmail.com> wrote:
> From: Hongbo Zhang <hongbo.zhang at nxp.com>
>
> This patch set contains two parts:
> ARMv7 PSCI common framework: fix some issues and add v1.0 support
> NXP (was Freescale) LS102XA: codes enhancement and add v1.0 implementation
>
> Changes since v1:
> - re-organize psci_cpu_on_common, this code should be called by each platform's
> psci_cpu_on, should not be a function calling each psci_cpu_on, all related
> functions are updated due to this change
> - update some registers usage, e.g. if r10 is used without push/pop, u-boot
> cannot launch rt-kernel
> - update some comments to be clearer, re-organize all patches for easier review
> - add patch to check already_on or on_pending for LS102XA
>
>
> Hongbo Zhang:
> Wang Dongsheng:
>   ARMv7: PSCI: update function psci_get_cpu_stack_top
>   ARMv7: PSCI: update the place of saving target PC
>   ARMv7: PSCI: add codes to save context ID for CPU_ON
>   ARMv7: PSCI: factor out reusable psci_cpu_on_common
>   ARMv7: PSCI: add PSCI v1.0 functions skeleton
>   ARMv7: PSCI: ls102xa: check target CPU ID before further operations
>   ARMv7: PSCI: ls102xa: check ALREADY_ON or ON_PENDING for CPU_ON
>   ARMv7: PSCI: ls102xa: add more PSCI v1.0 functions implemention
>   ARMv7: PSCI: ls102xa: move secure text section into OCRAM
>   ARM: PSCI: change PSCI function IDs base and offsets
>   ARM: PSCI: change PSCI related macros definition style
>
>  arch/arm/cpu/armv7/ls102xa/psci.S          | 177 +++++++++++++++++++++++++++--
>  arch/arm/cpu/armv7/mx7/psci.S              |   7 +-
>  arch/arm/cpu/armv7/nonsec_virt.S           |   7 ++
>  arch/arm/cpu/armv7/psci.S                  | 113 +++++++++++++++---
>  arch/arm/cpu/armv7/sunxi/psci_sun6i.S      |   8 +-
>  arch/arm/cpu/armv7/sunxi/psci_sun7i.S      |   8 +-
>  arch/arm/cpu/armv7/virt-dt.c               |  54 ++++++---
>  arch/arm/include/asm/arch-ls102xa/config.h |   3 +-
>  arch/arm/include/asm/psci.h                |  62 +++++++---
>  arch/arm/mach-tegra/psci.S                 |   7 +-
>  board/freescale/ls1021aqds/Makefile        |   1 +
>  board/freescale/ls1021aqds/psci.S          |  36 ++++++
>  board/freescale/ls1021atwr/Makefile        |   1 +
>  board/freescale/ls1021atwr/psci.S          |  28 +++++
>  include/configs/ls1021aqds.h               |   3 +
>  include/configs/ls1021atwr.h               |   3 +
>  16 files changed, 449 insertions(+), 69 deletions(-)
>  create mode 100644 board/freescale/ls1021aqds/psci.S
>  create mode 100644 board/freescale/ls1021atwr/psci.S
>
> --
> 2.1.4
>