[U-Boot] [PATCH 2/4] ARM: mx6: Prevent overflow in DRAM size detection

[Stefano Babic]

On 04/08/2014 01:47, Marek Vasut wrote:
> The MX6 DRAM controller can be configured to handle 4GiB of DRAM, but
> only 3840 MiB of that can be really used. In case the controller is
> configured to operate a 4GiB module, the imx_ddr_size() function will
> correctly compute that there is 4GiB of DRAM in the system. Firstly,
> the return value is 32-bit, so the function will effectively return
> zero. Secondly, the MX6 cannot address the full 4GiB, but only 3840MiB
> of all that. Thus, clamp the returned size to 3840MiB in such case.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> ---

Applied to u-boot-imx, thanks !

Best regards,
Stefano Babic


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