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From: Juha Yrjola <juha.yrjola@solidboot.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>,
	linux-arm-kernel@lists.arm.linux.org.uk,
	Kevin Hilman <khilman@deeprootsystems.com>,
	linux-omap@vger.kernel.org
Subject: Re: [PATCH 02/12] ARM: OMAP3: Store reboot mode in scratchpad on OMAP34xx
Date: Mon, 16 Mar 2009 19:40:24 +0200	[thread overview]
Message-ID: <49BE8F08.3000100@solidboot.com> (raw)
In-Reply-To: <20090316171008.GF31868@n2100.arm.linux.org.uk>

Russell King - ARM Linux wrote:

> Right.  You are aware that there is already a mechanism for doing this
> in the generic kernel (obviously not)?

I am. Unfortunately, glibc fails to support this mechanism, as you say. 
I didn't want to start making such intrusive changes for our trivial need.

> sys_reboot() with LINUX_REBOOT_CMD_RESTART2 takes a string in addition
> to the standard parameters.  This string is passed into machine_restart()
> which we currently ignore.  If LINUX_REBOOT_CMD_RESTART is used, this
> string is NULL.
> 
> We could change machine_restart() to pass this parameter through to
> arm_pm_restart() and ultimately down to arch_reset().

Sure. With RESTART2, I could've even used the reboot notifier chain with 
an OMAP3-specific driver to store the string.

Are you suggesting to get rid of reboot_mode altogether? If not, could 
we still have the sysfs mechanism? A one-character reboot_mode would be 
plenty enough for us.

Cheers,
Juha

  reply	other threads:[~2009-03-16 17:39 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-10 21:00 [PATCH 00/12] Omap3 updates for the merge window after 2.6.29 Tony Lindgren
2009-03-10 21:02 ` [PATCH 01/12] ARM: OMAP3: Remove unused CONFIG_I2C2_OMAP_BEAGLE Tony Lindgren
2009-03-10 21:03 ` [PATCH 02/12] ARM: OMAP3: Store reboot mode in scratchpad on OMAP34xx Tony Lindgren
2009-03-15 15:51   ` Russell King - ARM Linux
2009-03-16 16:07     ` Juha Yrjola
2009-03-16 17:10       ` Russell King - ARM Linux
2009-03-16 17:40         ` Juha Yrjola [this message]
2009-03-16 22:21           ` Russell King - ARM Linux
2009-03-18 18:28             ` Tony Lindgren
2009-03-18 19:26               ` Russell King - ARM Linux
2009-03-18 20:10                 ` Tony Lindgren
2009-03-18 20:15                   ` Tony Lindgren
2009-03-19  0:08                   ` Russell King - ARM Linux
2009-03-19 15:56                     ` Tony Lindgren
2009-03-24  1:11   ` Tony Lindgren
2009-03-10 21:04 ` [PATCH 03/12] ARM: OMAP3: Add more GPIO mux options Tony Lindgren
2009-03-10 21:06 ` [PATCH 04/12] ARM: OMAP3: mmc-twl4030 fix name buffer length Tony Lindgren
2009-03-15 16:00   ` Russell King - ARM Linux
2009-03-16 10:04     ` Adrian Hunter
2009-03-16 10:14       ` Russell King - ARM Linux
2009-03-16 17:42         ` Tony Lindgren
2009-03-16 22:22           ` Russell King - ARM Linux
2009-03-10 21:07 ` [PATCH 05/12] ARM: OMAP3: mmc-twl4030 voltage cleanup Tony Lindgren
2009-03-10 21:08 ` [PATCH 06/12] ARM: OMAP3: mmc-twl4030 init passes device nodes back Tony Lindgren
2009-03-15 16:02   ` Russell King - ARM Linux
2009-03-16 17:44     ` Tony Lindgren
2009-03-16 22:22       ` Russell King - ARM Linux
2009-03-10 21:10 ` [PATCH 07/12] ARM: OMAP3: mmc-twl4030 add MMC3 support Tony Lindgren
2009-03-15 16:04   ` Russell King - ARM Linux
2009-03-15 17:27     ` Grazvydas Ignotas
2009-03-15 17:40       ` Russell King - ARM Linux
2009-03-16 17:56         ` [PATCH 07/12] ARM: OMAP3: mmc-twl4030 add MMC3 support, v2 Tony Lindgren
2009-03-10 21:11 ` [PATCH 08/12] ARM: OMAP3: mmc-twl4030 fix for vmmc = 0 Tony Lindgren
2009-03-10 21:12 ` [PATCH 09/12] ARM: OMAP3: mmc-twl4030 add cover switch Tony Lindgren
2009-03-10 21:13 ` [PATCH 10/12] ARM: OMAP3: mmc-twl4030 allow arbitrary slot names Tony Lindgren
2009-03-15 16:08   ` Russell King - ARM Linux
2009-03-16 10:04     ` Adrian Hunter
2009-03-16 10:05     ` Adrian Hunter
2009-03-16 10:16       ` Russell King - ARM Linux
2009-03-16 18:01         ` Tony Lindgren
2009-03-10 21:15 ` [PATCH 11/12] ARM: OMAP3: Add base address definitions and resources for OMAP 3 IS Tony Lindgren
2009-03-24  1:37   ` [PATCH 11/12] ARM: OMAP3: Add base address definitions and resources for OMAP 3 IS, v2 Tony Lindgren
2009-03-10 21:16 ` [PATCH 12/12] ARM: OMAP3: MUSB initialization for omap hw Tony Lindgren
2009-03-15 16:14   ` Russell King - ARM Linux
2009-03-15 18:46     ` David Brownell
2009-03-16 22:42       ` [PATCH] ARM: OMAP: Add name for musb clocks Tony Lindgren
2009-05-12 17:40         ` [APPLIED] " Tony Lindgren
2009-03-16 22:37     ` [PATCH 12/12] ARM: OMAP3: MUSB initialization for omap hw, v2 Tony Lindgren
2009-03-24  2:51 ` [PATCH 00/12] Omap3 updates for the merge window after 2.6.29 Tony Lindgren

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