mirrors/u-boot
0
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2024-12-02 09:03:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

imx: mx7: fix potential overflow in imx_ddr_size()

Browse Source 
The imx_ddr_size() function may overflow as it is possible to kind of
over provision the DDR controller. Fix this by capping it to 2 GB which
is the maximum allowed size as per reference manual.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
This commit is contained in:
Marcel Ziswiler 2018-09-19 13:01:55 +02:00 committed by Stefano Babic
parent 780e31e93f
commit 2cea8d74dc
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/mach-imx/mx7/ddr.c
View File

@ -196,5 +196,9 @@ unsigned int imx_ddr_size(void)
if (field_val <= 29)
bits++;
/* cap to max 2 GB */
if (bits > 31)
bits = 31;
return 1 << bits;
}