On Mon, 11 Jun 2012, Benoit Cousson wrote:
> The following commit (794b480a37e3d284d6ee7344d8a737ef60476ed5) was adding
> the PRCM IPs data for PRCM, CM, PRCM_MPU and SCRM.
> The clkdm entry are not the correct ones and does not exist in the system.
>
> Replace them with the proper wkup, l4_ao and l4_cfg.
This does not match either the publicly avaiable documentation and the
internal NDA hardware specifications[1].
Nor does it make sense from a logical perspective. To take an example
from your patch:
> @@ -2564,12 +2543,33 @@ static struct omap_hwmod_rst_info omap44xx_prm_resets[] = {
> static struct omap_hwmod omap44xx_prm_hwmod = {
> .name = "prm",
> .class = &omap44xx_prcm_hwmod_class,
> - .clkdm_name = "prm_clkdm",
> + .clkdm_name = "l4_wkup_clkdm",
> .mpu_irqs = omap44xx_prm_irqs,
> .rst_lines = omap44xx_prm_resets,
> .rst_lines_cnt = ARRAY_SIZE(omap44xx_prm_resets),
> };
There is no possible way that the PRM can exist in the L4_WKUP
clockdomain. The L4_WKUP clockdomain must be able to go inactive for the
chip to enter idle, as we just discussed[1]. But the PRM is the
entity that supervises chip wakeup from off-mode, so for off-mode
to work, there's no way that the PRM can be clock-gated.
Frustrating :-(
> Fix as well the wrong OCP port used by the cm_core_aon. It uses the
> l4_cfg interconnect and not the l4_wkup.
>
> Re-order the entries by address value.
If you split this part off into a separate patch, I'll take it.
- Paul
1. Cousson, Benoît. _Re: [PATCH] ARM: OMAP2+: hwmod code/data: fix 32K
sync timer_. linux-omap@xxxxxxxxxxxxxxx mailing list. Available from
http://www.spinics.net/lists/arm-kernel/msg177128.html (among others).
