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authorZhuoyu Zhang <Zhuoyu.Zhang@freescale.com>2015-08-17 18:55:12 +0800
committerYork Sun <yorksun@freescale.com>2015-09-01 21:49:20 -0500
commit03c22449c5b7daff0a43291b34564a52660b83b8 (patch)
tree5925e5f7cbbcc63e89d40674300b635936d1b94a /arch/arm/cpu/armv8
parentec93af0dec4c9f17cefadd24d54edf5c5b91bc8d (diff)
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arm/ls102xa:add hwconfig setting to support disable unused devices
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> Reviewed-by: York Sun <yorksun@freescale.com>
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