linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: anarsoul@gmail.com (Vasily Khoruzhick)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/8] ARM: PXA: Z2: Add poweroff function
Date: Sat, 12 Mar 2011 13:30:22 +0200	[thread overview]
Message-ID: <201103121330.22949.anarsoul@gmail.com> (raw)
In-Reply-To: <201103121206.13251.marek.vasut@gmail.com>

On Saturday 12 March 2011 13:06:13 Marek Vasut wrote:
 
> You have a problem with suspend then ? That'd need a different solution.

I'm still not sure if resume from deepsleep is possible on Zipit Z2, so using 
deepsleep as poweroff is the only solution we know for now.

> > Ok, I can clear PSPR before going to deepsleep, would it be enough?
> 
> As Eric pointed out, the wake-up scenario is bootloader-specific ... taking
> into acount only your own version of bootloader is a no-no

That will work with mainline u-boot, here's pseudocode:

1. PSPR = 0x0;
2. Put_PXA270_Into_DeepSleep();
.......
Wake-up
.......
3. Load RCSR to temporary var
4. Clear RCSR bits
5. If we resumed from suspend jump to location pointed by PSPR

Steps 3-5 are already implemented in u-boot, so it'll jump to 0x0 (NOR), to 
the u-boot entry point. RCSR bits are already cleared, so it just continues 
regular boot process.

Regards
Vasily

  reply	other threads:[~2011-03-12 11:30 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-11 10:23 [PATCH 1/8] ARM: PXA: Z2: Use only power button as wake source Vasily Khoruzhick
2011-03-11 10:23 ` [PATCH 2/8] ARM: PXA: Z2: Enable OHCI on Zipit Z2 Vasily Khoruzhick
2011-03-11 14:56   ` [PATCH v2 " Vasily Khoruzhick
2011-03-11 21:42     ` Marek Vasut
2011-03-11 21:49       ` Vasily Khoruzhick
2011-03-11 21:50         ` Marek Vasut
2011-03-11 21:55           ` Vasily Khoruzhick
2011-03-11 22:13             ` Marek Vasut
2011-03-11 22:34               ` Vasily Khoruzhick
2011-03-12  0:07                 ` Marek Vasut
2011-03-12 11:32                   ` Vasily Khoruzhick
2011-03-12 13:28                     ` Marek Vasut
2011-03-13 10:18           ` Pavel Machek
2011-03-13 12:29             ` Marek Vasut
2011-03-13 17:10               ` Pavel Machek
2011-03-13 18:34                 ` Marek Vasut
2011-03-13 22:15                   ` Vasily Khoruzhick
2011-03-11 21:41   ` [PATCH " Marek Vasut
2011-03-11 10:23 ` [PATCH 3/8] ARM: PXA: Z2: Fix battery pdata Vasily Khoruzhick
2011-03-11 21:39   ` Marek Vasut
2011-03-11 10:23 ` [PATCH 4/8] ARM: PXA: Z2: Add mtd partition with logo Vasily Khoruzhick
2011-03-11 21:39   ` Marek Vasut
2011-03-11 22:31     ` Vasily Khoruzhick
2011-03-12  0:05       ` Marek Vasut
2011-03-15 14:39         ` Pavel Machek
2011-03-16 14:11           ` Marek Vasut
2011-03-16 16:51             ` Pavel Machek
2011-03-11 10:23 ` [PATCH 5/8] ARM: PXA: Z2: Add poweroff function Vasily Khoruzhick
2011-03-11 21:39   ` Marek Vasut
2011-03-11 21:53     ` Vasily Khoruzhick
2011-03-11 22:08       ` Marek Vasut
2011-03-11 22:12         ` Vasily Khoruzhick
2011-03-11 22:16           ` Marek Vasut
2011-03-11 22:30             ` Vasily Khoruzhick
2011-03-12  0:05               ` Marek Vasut
2011-03-12  2:29                 ` Eric Miao
2011-03-12  8:06                 ` Vasily Khoruzhick
2011-03-12 11:06                   ` Marek Vasut
2011-03-12 11:30                     ` Vasily Khoruzhick [this message]
2011-03-12 13:16                       ` Marek Vasut
2011-03-12 20:33                         ` Vasily Khoruzhick
2011-03-12 20:35                           ` Marek Vasut
2011-03-12 20:34                         ` Vasily Khoruzhick
2011-03-12 22:29                           ` Marek Vasut
2011-03-15 15:49                             ` Eric Miao
2011-03-15 15:57                               ` Vasily Khoruzhick
2011-03-15 16:42                                 ` Eric Miao
2011-03-15 20:11                                   ` [PATCH v2] " Vasily Khoruzhick
2011-07-05  6:58                                     ` Eric Miao
2011-03-15 14:41                         ` [PATCH 5/8] " Pavel Machek
2011-03-11 10:23 ` [PATCH 6/8] ARM: PXA: Z2: Fix libertas init/tear down sequences Vasily Khoruzhick
2011-03-11 21:37   ` Marek Vasut
2011-03-11 21:41     ` Vasily Khoruzhick
2011-03-11 21:51       ` Marek Vasut
2011-03-11 10:23 ` [PATCH 7/8] ARM: PXA: Z2: Keep kbd backlight disabled by default Vasily Khoruzhick
2011-03-11 21:36   ` Marek Vasut
2011-03-11 10:23 ` [PATCH 8/8] ARM: PXA: Z2: Add default triggers for LEDs Vasily Khoruzhick
2011-03-11 21:36   ` Marek Vasut
2011-03-11 21:43 ` [PATCH 1/8] ARM: PXA: Z2: Use only power button as wake source Marek Vasut
2011-03-13 10:15 ` Pavel Machek

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=201103121330.22949.anarsoul@gmail.com \
    --to=anarsoul@gmail.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).