OMAP4 PM bootloader dependency problems

2013-01-21 Thread Paul Walmsley
Hi Tero, Rajendra, Santosh, As we've discussed, there are known bootloader dependencies with the OMAP4 PM retention idle code, introduced in v3.8. Boards booted with u-boot versions even as recent as 2011 won't enter retention idle correctly; for example: http://www.pwsan.com/omap/testl

Re: OMAP4 PM bootloader dependency problems

2013-01-30 Thread Paul Walmsley
Hi Tero et al., On Tue, 22 Jan 2013, Paul Walmsley wrote: > As we've discussed, there are known bootloader dependencies with the OMAP4 > PM retention idle code, introduced in v3.8. Boards booted with u-boot > versions even as recent as 2011 won't enter retention idle correctly; for > example:

Re: OMAP4 PM bootloader dependency problems

2013-01-31 Thread Tero Kristo
On Wed, 2013-01-30 at 17:15 +, Paul Walmsley wrote: > Hi Tero et al., > > On Tue, 22 Jan 2013, Paul Walmsley wrote: > > > As we've discussed, there are known bootloader dependencies with the OMAP4 > > PM retention idle code, introduced in v3.8. Boards booted with u-boot > > versions even a

Re: OMAP4 PM bootloader dependency problems

2013-01-31 Thread Rajendra Nayak
Tero, On Thursday 31 January 2013 02:30 PM, Tero Kristo wrote: Personally I don't like too much to have just extra spam during boot, which in many cases is even unnecessary (e.g. people who actually have good u-boot in use.) Personally I would like to have some sort of test during boot which det

Re: OMAP4 PM bootloader dependency problems

2013-01-31 Thread Paul Walmsley
Hi, On Thu, 31 Jan 2013, Tero Kristo wrote: > Personally I don't like too much to have just extra spam during boot, > which in many cases is even unnecessary (e.g. people who actually have > good u-boot in use.) The impact of two or three informative lines sent to the kernel console on boot is

Re: OMAP4 PM bootloader dependency problems

2013-01-31 Thread Paul Walmsley
Hi, On Thu, 31 Jan 2013, Rajendra Nayak wrote: > Throw a pr_warn() at boot only when CONFIG_CPU_IDLE is enabled. Note > that it isn't enabled by default in omap2plus_defconfig. Also > throw one when a suspend fails, saying bootloader *could be* a possible > cause specifying the right version to b

Re: OMAP4 PM bootloader dependency problems

2013-01-31 Thread Santosh Shilimkar
On Thursday 31 January 2013 09:10 PM, Paul Walmsley wrote: Hi, On Thu, 31 Jan 2013, Rajendra Nayak wrote: Throw a pr_warn() at boot only when CONFIG_CPU_IDLE is enabled. Note that it isn't enabled by default in omap2plus_defconfig. Also throw one when a suspend fails, saying bootloader *could

Re: OMAP4 PM bootloader dependency problems

2013-01-31 Thread Paul Walmsley
Hi, On Thu, 31 Jan 2013, Santosh Shilimkar wrote: > On Thursday 31 January 2013 09:10 PM, Paul Walmsley wrote: > > On Thu, 31 Jan 2013, Rajendra Nayak wrote: > > > > > Throw a pr_warn() at boot only when CONFIG_CPU_IDLE is enabled. Note > > > that it isn't enabled by default in omap2plus_defconf

Re: OMAP4 PM bootloader dependency problems

2013-01-31 Thread Paul Walmsley
On Thu, 31 Jan 2013, Paul Walmsley wrote: > Right. I don't have any problem with adding a message to the suspend path > also. But I'd like to see a boot-time message added even if > CONFIG_CPU_IDLE=n, since it's still possible to enter full-chip retention > idle with dynamic idle. In other w

Re: OMAP4 PM bootloader dependency problems

2013-01-31 Thread Paul Walmsley
On Thu, 31 Jan 2013, Paul Walmsley wrote: > On Thu, 31 Jan 2013, Paul Walmsley wrote: > > > Right. I don't have any problem with adding a message to the suspend path > > also. But I'd like to see a boot-time message added even if > > CONFIG_CPU_IDLE=n, since it's still possible to enter full-

Re: OMAP4 PM bootloader dependency problems

2013-02-05 Thread Jon Hunter
Hi Paul, On 01/21/2013 08:42 PM, Paul Walmsley wrote: > > Hi Tero, Rajendra, Santosh, > > As we've discussed, there are known bootloader dependencies with the OMAP4 > PM retention idle code, introduced in v3.8. Boards booted with u-boot > versions even as recent as 2011 won't enter retention

Re: OMAP4 PM bootloader dependency problems

2013-03-10 Thread Paul Walmsley
Hi Jon, sorry for the delay, On Tue, 5 Feb 2013, Jon Hunter wrote: > I noticed on my OMAP4430 SDP that in suspend L3INIT was failing to enter > retention state. I am not sure if this is the same problem that you are > seeing or not. However, I found that the reason the L3INIT was not entering