AM3352的CPU 内核升级到linux 4.1.13
启动时，有一段代码运行了2秒钟的时间，RAID6的功能； 查过好似是DMA？
[ 0.373559] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.376448] xor: measuring software checksum speed
[ 0.468570] arm4regs : 974.400 MB/sec
[ 0.568480] 8regs : 722.000 MB/sec
[ 0.668481] 32regs : 871.600 MB/sec
[ 0.768481] neon : 679.200 MB/sec
[ 0.768519] xor: using function: arm4regs (974.400 MB/sec)
[ 0.768760] pinctrl core: initialized pinctrl subsystem
[ 0.771505] NET: Registered protocol family 16
[ 0.775382] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.784108] OMAP GPIO hardware version 0.1
[ 0.801709] No ATAGs?
[ 0.801771] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.804167] omap4_sram_init:Unable to allocate sram needed to handle errata I688
[ 0.804258] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 1.009055] raid6: int32x1 gen() 121 MB/s
[ 1.178890] raid6: int32x1 xor() 70 MB/s
[ 1.348558] raid6: int32x2 gen() 146 MB/s
[ 1.518535] raid6: int32x2 xor() 95 MB/s
[ 1.688699] raid6: int32x4 gen() 133 MB/s
[ 1.858585] raid6: int32x4 xor() 93 MB/s
[ 2.028946] raid6: int32x8 gen() 132 MB/s
[ 2.198717] raid6: int32x8 xor() 85 MB/s
[ 2.368477] raid6: neonx1 gen() 1070 MB/s
[ 2.538482] raid6: neonx2 gen() 1457 MB/s
[ 2.708623] raid6: neonx4 gen() 387 MB/s
[ 2.878642] raid6: neonx8 gen() 340 MB/s
[ 2.878679] raid6: using algorithm neonx2 gen() 1457 MB/s
[ 2.878718] raid6: using intx1 recovery algorithm
我想提高启动的速度，请问，在那里可以关闭这部分功能？
