[U-Boot] Hang when enabling DCache on a iMX6 board
Hello,
I'm currently porting the SECO iMX6 uQ7 board to mainline, but I'm facing a hang when enabling DCache (CONFIG_SYS_DCACHE_OFF undefined). Last week I asked on the #u-boot chan if anybody already encountered such a bug, and someone (named malik) suggested to check my DDR timings.
After a few more tests and checks I decided to port my changes to an older version (2014.04), and it apparently works. I haven't bisected to find the exact commit that makes it fails yet, but before doing that I'd like to know if anyone else already experienced this kind of problem, or has any idea of what could cause this.
Here is my public repository containing two branches [1], the seco-mainline branch contains my port based on the master branch and the seco-2014.04 contains the same work based on the 2014.04 tag.
Best Regards,
Boris
[1]https://github.com/bbrezillon/u-boot-seco
Hello Boris,
On Tue, 3 Feb 2015 19:39:16 +0100 Boris Brezillon boris.brezillon@free-electrons.com wrote:
Hello,
I'm currently porting the SECO iMX6 uQ7 board to mainline, but I'm facing a hang when enabling DCache (CONFIG_SYS_DCACHE_OFF undefined). Last week I asked on the #u-boot chan if anybody already encountered such a bug, and someone (named malik) suggested to check my DDR timings.
After a few more tests and checks I decided to port my changes to an older version (2014.04), and it apparently works. I haven't bisected to find the exact commit that makes it fails yet, but before doing that I'd like to know if anyone else already experienced this kind of problem, or has any idea of what could cause this.
I've seen similar problem when porting to v2014.04. The problem disappeared after including the mx6_common.h in the board config file. This header file contains some errata configs, so please try with
#include "mx6_common.h"
in your board config file.
HTH,
Anatolij
Hi Anatolij,
On Tue, 3 Feb 2015 20:17:36 +0100 Anatolij Gustschin agust@denx.de wrote:
Hello Boris,
On Tue, 3 Feb 2015 19:39:16 +0100 Boris Brezillon boris.brezillon@free-electrons.com wrote:
Hello,
I'm currently porting the SECO iMX6 uQ7 board to mainline, but I'm facing a hang when enabling DCache (CONFIG_SYS_DCACHE_OFF undefined). Last week I asked on the #u-boot chan if anybody already encountered such a bug, and someone (named malik) suggested to check my DDR timings.
After a few more tests and checks I decided to port my changes to an older version (2014.04), and it apparently works. I haven't bisected to find the exact commit that makes it fails yet, but before doing that I'd like to know if anyone else already experienced this kind of problem, or has any idea of what could cause this.
I've seen similar problem when porting to v2014.04. The problem disappeared after including the mx6_common.h in the board config file. This header file contains some errata configs, so please try with
#include "mx6_common.h"
in your board config file.
Indeed, it works! \o/
I don't know how, but I somehow included this header when backporting my work to v2014.04, which explains why it was working on this version.
Anyway, thanks a lot for your answer (I owe you one).
Best Regards,
Boris
participants (2)
-
Anatolij Gustschin -
Boris Brezillon