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Title: not work Generic Timer [Print This Page]

Author: syuchan Time: 2/15/2015 21:41
Title: 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.

Author: naobsd Time: 2/16/2015 06:16
Title: 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

Author: syuchan Time: 2/16/2015 23:45
Title: 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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