[U-Boot] [PATCH v2 1/1] arm/ls102xa:add hwconfig setting to support disable unused devices.

[York Sun]

On 08/14/2015 02:53 AM, Zhuoyu Zhang wrote:
> DEVDISRn registers provides a mechanism for gating clocks of IP blocks
> that are not used. Here we implement hwconfig option to allow users
> to disable unused peripherals on the board.
> 
> For ex. If eSDHC/qDMA/eDMA are unused and with disabled status in dts,
> User can enable CONFIG_FSL_DEVICE_DISABLE and set "devdis:esdhc,qdma,edma"
> in hwconfig, thus ESDHC controller & eDMA/qDMA will be clock gated to
> save more power.
> 
> Signed-off-by: Zhuoyu Zhang <Zhuoyu.Zhang at freescale.com>
> ---
>  arch/arm/include/asm/arch-ls102xa/ls102xa_devdis.h | 52 ++++++++++++++++++++++
>  board/freescale/ls1021aqds/ls1021aqds.c            |  5 +++
>  board/freescale/ls1021atwr/ls1021atwr.c            |  5 +++
>  drivers/misc/Makefile                              |  1 +
>  drivers/misc/fsl_devdis.c                          | 29 ++++++++++++
>  include/configs/ls1021aqds.h                       |  4 +-
>  include/configs/ls1021atwr.h                       |  4 +-
>  include/fsl_devdis.h                               | 18 ++++++++
>  8 files changed, 116 insertions(+), 2 deletions(-)
>  create mode 100644 arch/arm/include/asm/arch-ls102xa/ls102xa_devdis.h
>  create mode 100644 drivers/misc/fsl_devdis.c
>  create mode 100644 include/fsl_devdis.h
> 

What's the change since v1? You missed change log.

York