Post it on
http://e2e.ti.com/support/arm/sitara_arm/f/791/t/312683.aspx


2014/1/5 Vaibhav Bedia <[email protected]>

> On Thu, Dec 26, 2013 at 9:49 PM, liyaoshi <[email protected]> wrote:
>
>> Hi all
>>
>> I review the code from
>>
>>
>> http://git.denx.de/?p=u-boot.git;a=blob;f=arch/arm/include/asm/arch-am33xx/ddr_defs.h;h=2278358ab200ecc26fc7500e01b11268fe7d43f5;hb=HEAD#l29
>>
>> Here
>> #define MT47H128M16RT25E_EMIF_SDCFG   0x41805332
>>
>>
>> https://raw.github.com/CircuitCo/BeagleBone-RevA5/master/BeagleBone_revA5_SCH.pdf
>>
>> A5 board use 256M ddr2 with MT47H128M16 on 16bit
>>
>> And from
>>
>>
>> http://www.micron.com/~/media/Documents/Products/Data%20Sheet/DRAM/DDR2/2Gb_DDR2.pdf
>>
>> 256M DDR2 only have 14 raw address
>>
>> Ti Reference manual say
>>
>> [image: 内嵌图片 1]
>>  This 332 mean use 15 ROW
>>
>> It should be 0x418052d2
>>
>> right ?
>>
>> Why BB a5 board can run so stable ?
>>
>>
> Now this is odd. Care to post it to
> http://e2e.ti.com/support/arm/sitara_arm/default.aspx ?
>
>
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