[01: PATCH 0/7] Preparation for arch_reset changes

Kukjin Kim kgene.kim at samsung.com
Tue Nov 8 00:00:36 EST 2011


Russell King - ARM Linux wrote:
> 
> This series lays down the ground work for changing the way we handle the
> reset (now called restart) handling on ARM.
> 
> As a result of these patches, we provide a new hook in the machine_desc
> record called 'restart' which is pointed at a function to perform the
> appropriate restart actions for the platform.  This is called directly
> from machine_restart() with IRQs and caches on.
> 
> The 'soft_reboot' flag is changed to a more generic 'restart_mode'
> character - which is used to initialize the default reboot mode (which
> can be changed via the 'reboot=' command line parameter.)
> 
> 'soft_restart(addr)' is added which performs a soft restart (iow,
> orderly shutdown of caches and MMU and a jump to the passed address),
> rather than the old way which separated the tear-down of the caches
> and MMU from the code doing the jump.  This will be necessary to
> resolve the ARMv6 and ARMv7 CPU restarting problems.
> 
> Finally, appropriate 'restart_mode' values are added to several
> platforms which were hard-coding the restart mode by intercepting
> the restarting via arm_pm_restart.
> 
>  arch/arm/include/asm/mach/arch.h                  |    9 +++--
>  arch/arm/include/asm/system.h                     |    1 +
>  arch/arm/kernel/machine_kexec.c                   |    4 +-
>  arch/arm/kernel/process.c                         |   35
++++++++++++-----
> ---
>  arch/arm/kernel/setup.c                           |    7 +++-
>  arch/arm/mach-clps711x/include/mach/system.h      |    2 +-
>  arch/arm/mach-ebsa110/core.c                      |    2 +-
>  arch/arm/mach-ebsa110/include/mach/system.h       |    2 +-
>  arch/arm/mach-ep93xx/include/mach/system.h        |    2 -
>  arch/arm/mach-footbridge/cats-hw.c                |    2 +-
>  arch/arm/mach-footbridge/include/mach/system.h    |    2 +-
>  arch/arm/mach-iop32x/include/mach/system.h        |    4 +--
>  arch/arm/mach-iop33x/include/mach/system.h        |    2 +-
>  arch/arm/mach-ixp2000/include/mach/system.h       |    2 -
>  arch/arm/mach-ixp4xx/include/mach/system.h        |    2 +-
>  arch/arm/mach-ks8695/include/mach/system.h        |    2 +-
>  arch/arm/mach-lpc32xx/include/mach/system.h       |    3 --
>  arch/arm/mach-mmp/include/mach/system.h           |    4 +-
>  arch/arm/mach-mxs/system.c                        |    2 +-
>  arch/arm/mach-pnx4008/include/mach/system.h       |    2 +-
>  arch/arm/mach-pxa/mioa701.c                       |    1 +
>  arch/arm/mach-pxa/reset.c                         |    2 +-
>  arch/arm/mach-pxa/spitz.c                         |    3 ++
>  arch/arm/mach-pxa/tosa.c                          |    1 +
>  arch/arm/mach-rpc/include/mach/system.h           |    2 +-
>  arch/arm/mach-s3c2410/include/mach/system-reset.h |    4 +-
>  arch/arm/mach-s3c64xx/include/mach/system.h       |    2 +-
>  arch/arm/mach-sa1100/include/mach/system.h        |    2 +-
>  arch/arm/mach-shark/core.c                        |    1 -
>  arch/arm/mach-shmobile/include/mach/system.h      |    2 +-
>  arch/arm/mach-u300/include/mach/system.h          |    2 -
>  arch/arm/mach-w90x900/include/mach/system.h       |    2 +-
>  arch/arm/mm/idmap.c                               |    2 +-
>  arch/arm/mm/nommu.c                               |    2 +-
>  arch/arm/plat-mxc/system.c                        |    2 +-
>  arch/arm/plat-spear/include/plat/system.h         |    2 +-
>  36 files changed, 64 insertions(+), 59 deletions(-)

For Samsung stuff,

Acked-by: Kukjin Kim <kgene.kim at samsung.com>

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim at samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.




More information about the linux-arm-kernel mailing list