Dear All,
I referred to ”Figure 18-2. Clock Tree - Part 1” and ”Figure 18-3. Clock Tree - Part 2” in IMX6DQRM(Rev.3).
But, the some difference was seen between jb4.2.2's setting and Reference Manual (RM).
[RM] [JB4.2.2]
GPU2D_CORE_CLK_ROOT 352MHz 480MHz
GPU3D_CORE_CLK_ROOT 594MHz 528MHz
GPU3D_SHADER_CLK_ROOT 720MHz 594MHz
ENFC_CLK_ROOT 198MHz 19.8MHz
PERCLK_CLK_ROOT 16.5MHz 22MHz
[Q1]
Why are there differences in the clock?
[Q2]
Is the setting of JB4.2.2 right?
Best Regards,
Keita
Solved! Go to Solution.
Hi Keita,
For MX6DQ, current 2d clock is 480MHz. Current 3d core clock is 528MHz, current 3d shader clock is 594MHz. We don't recommend changing the gpu clock. If any case you want to change it, you can try the clock divider for such root clock. And the clock divider should be done before gpu driver loading. Settings on jb are ok.
Hi Keita,
For MX6DQ, current 2d clock is 480MHz. Current 3d core clock is 528MHz, current 3d shader clock is 594MHz. We don't recommend changing the gpu clock. If any case you want to change it, you can try the clock divider for such root clock. And the clock divider should be done before gpu driver loading. Settings on jb are ok.
Dear Alfred,
Hello. Thank you for your reply.
> We don't recommend changing the gpu clock.
OK. I got it.
Best Regards,
Keita