Hi Fabio,
On 08/29/2016 04:58 AM, Fabio Estevam wrote:
Hi Eric,
On Mon, Aug 29, 2016 at 12:20 AM, Fabio Estevam festevam@gmail.com wrote:
From: Fabio Estevam fabio.estevam@nxp.com
When running NXP 4.1 kernel with U-Boot mainline we observe a hang when going into the lowest operational point of cpufreq.
Comparing the DDR calibration values against NXP U-Boot showed that the values were incorrect.
Adjust the calibration values so that we can avoid such system hang.
Reported-by: Eric Nelson eric@nelint.com Signed-off-by: Fabio Estevam fabio.estevam@nxp.com
After running more tests I still get the hang sometimes, so we still need to review the DDR SPL settings.
Regards,
Fabio Estevam
I just test this patch against imx/master and I'm still seeing the issue:
root@imx6ulevk:~# Bus freq set to 24000000 start...
Do you have kernel debug messages enabled so you can see the bus frequency change?