[U-Boot] Seeing only 256MB of RAM

[John Tobias]

Hi Guys,

I got it working..

Regards,

john

On Fri, Oct 3, 2014 at 10:44 AM, John Tobias <john.tobias.ph at gmail.com> wrote:
> Hi All,
>
>
> I have an iMX6SL custom board with two 512 MB (CS0 and CS1) of DDR3.
> The two DDR are working fine and the kernel could see it 1GB. I need
> to disable the CS1 to work my device with 512MB at the same time to
> see the performance of my system. I used the MX6SL_MMDC_DDR3_register
> programming
> v0.5 to disable the CS1.
>
> Here are the summary of the new settings:
>
>
> // Manufacturer: Micron
> // Clock Freq.: 400MHz
> // Density per CS in Gb: 4
> // Chip Selects used: 1
> // Total DRAM density (Gb) 4
> // Number of Banks: 8
> // Row address:     14
> // Column address: 10
> // Data bus width 16
>
>
> In my u-boot config file, I changed default value of PHYS_SDRAM_SIZE
> from SZ_1GB to SZ_512M
>
> The problem right now is that the kernel only seeing  256M instead of
> 512M. I would like to know if I am missing something on my
> configuration?.
>
>
> Regards,
>
>
> John