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not work Generic Timer

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Posted at 2/15/2015 21:41:19     

not work Generic Timer

I am working Own RTOS on FireFly-RK3288.


I have problem.

I want to use Cortex-A17 Generic Timer(CP15 c4 registers).

But, Even though timer is enabled, not work counter.(countup/countdown not work)

ID_PFR1's generic timer extension is 'implemented'.

What do I need for?


Same initialization-code is work on cortex-A7 development board.

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Posted at 2/16/2015 06:16:38     

Re: not work Generic Timer

I am working Own RTOS on FireFly-RK3288.

very interesting!

I have problem.

I want to use Cortex-A17 Generic Timer(CP15 c4 registers).

But, Even though timer is enabled, not work counter.(countup/countdown not work)

ID_PFR1's generic timer extension is 'implemented'.

What do I need for?


Same initialization-code is work on cortex-A7 development board.

can you try my u-boot binary from http://androtab.info/rockchip/u-boot/ ?

if you're using own loader code, try to init TIMER7 like this https://github.com/linux-rockchip/u-boo ... c6f60332c9

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Posted at 2/16/2015 23:45:22     

Re: not work Generic Timer

I am working Own RTOS on FireFly-RK3288.

very interesting!

I have problem.

I want to use Cortex-A17 Generic Timer(CP15 c4 registers).

But, Even though timer is enabled, not work counter.(countup/countdown not work)

ID_PFR1's generic timer extension is 'implemented'.

What do I need for?


Same initialization-code is work on cortex-A7 development board.

can you try my u-boot binary from http://androtab.info/rockchip/u-boot/ ?

if you're using own loader code, try to init TIMER7 like this https://github.com/linux-rockchip/u-boo ... c6f60332c9

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