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How to change the ddr  clock for   i.mx6dl-sdp?

Question asked by cody ou on Mar 13, 2014
Latest reply on Mar 13, 2014 by Anson Huang

1.Can we  just change the the ddr  clock in  uboot or the  ddr   driver  which   in the  kernel

 

2.If  we just change  the ddr  clock in  uboot ,will  the  ddr   driver  which   in the  kernel   change the the ddr  clock?


3.How to change the ddr  clock ?

 

4.And  I  have  change  the ddr  clock in  uboot,the as follows is the log ,is  it  right?

U-Boot 2009.08 ( 3鏈14 2014 - 05:56:35)

CPU: Freescale i.MX6 family TO1.1 at 792 MHz

Thermal sensor with ratio = 188

Temperature:   32 C, calibration data 0x5a500000

mx6q pll1: 792MHz

mx6q pll2: 528MHz

mx6q pll3: 480MHz

mx6q pll8: 50MHz

ipg clock     : 27666666Hz

ipg per clock : 27666666Hz

uart clock    : 80000000Hz

cspi clock    : 60000000Hz

ahb clock     : 55333333Hz

axi clock   : 83000000Hz

emi_slow clock: 41500000Hz

ddr clock     : 166000000Hz

usdhc1 clock  : 83000000Hz

usdhc2 clock  : 83000000Hz

usdhc3 clock  : 83000000Hz

usdhc4 clock  : 83000000Hz

nfc clock     : 24000000Hz

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