Hi, York
Alison help me find out a macro definition mistake, v2 just correct this mistake. I will resend it again and add change-log in.
Zhuoyu
-----Original Message----- From: Sun York-R58495 Sent: Saturday, August 15, 2015 12:07 AM To: Zhang Zhuoyu-B46552 Cc: u-boot@lists.denx.de; Jin Zhengxiong-R64188; Wang Huan-B18965 Subject: Re: [PATCH v2 1/1] arm/ls102xa:add hwconfig setting to support disable unused devices.
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@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