From: "Pali Rohár" <pali.rohar@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 02/14] arm: Optionally use existing atags in bootm.c
Date: Wed, 25 Jan 2012 20:17:23 +0100 [thread overview]
Message-ID: <8793911.71VDepJcRE@pali> (raw)
In-Reply-To: <201201251902.45932.marek.vasut@gmail.com>
On Wednesday 25 January 2012 19:02:45 Marek Vasut wrote:
> > This patch adapts the bootm command so that it can use an existing atags
> > command set up by a previous bootloader.
>
> Why do you need it?
Default Nokia kernel has patches which using non-standard atags for reporting
bootmode, bootreason, hw-rev, NOLO version, boot count, ...
Closed-source Maemo application need to know these properties (read via
/proc/bootreason, ...) and will restart device if there is error.
So U-Boot must can reuse old atags from NOLO and tell it new kernel.
>
> > If the environment variable
> > "atagaddr" is unset, bootm behaves as normal. If "atagaddr" is set, bootm
> > will use atags address from environment variable and also append new boot
> > args (if specified in u-boot). For example, if a previous boot loader
> > already set up the atags struct at 0x80000100:
> >
> > setenv atagaddr 0x80000100; bootm 0x80008000
>
> Can't you set those atags correctly in uboot?
>
No, because atags are not static (e.g bootreason).
--
Pali Roh?r
pali.rohar at gmail.com
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next prev parent reply other threads:[~2012-01-25 19:17 UTC|newest]
Thread overview: 220+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-24 14:27 [U-Boot] [PATCH 00/14] Nokia RX-51 support Pali Rohár
2012-01-24 14:27 ` [U-Boot] [PATCH 01/14] arm, omap3: Define save_boot_params in lowlevel_init.S for SPL only Pali Rohár
2012-01-25 18:00 ` Marek Vasut
2012-01-25 18:50 ` Tom Rini
2012-01-25 18:47 ` Tom Rini
2012-02-28 16:25 ` Pali Rohár
2012-02-28 16:29 ` Tom Rini
2012-02-29 21:37 ` Marek Vasut
2012-03-05 18:24 ` Tom Rini
2012-03-05 18:49 ` Marek Vasut
2012-01-24 14:27 ` [U-Boot] [PATCH 02/14] arm: Optionally use existing atags in bootm.c Pali Rohár
2012-01-25 18:02 ` Marek Vasut
2012-01-25 19:17 ` Pali Rohár [this message]
2012-01-25 20:55 ` Marek Vasut
2012-01-25 21:08 ` Pali Rohár
2012-01-25 21:28 ` Marek Vasut
2012-01-25 21:35 ` Pali Rohár
2012-01-25 21:55 ` Marek Vasut
2012-01-25 22:03 ` Pali Rohár
2012-01-24 14:28 ` [U-Boot] [PATCH 03/14] Add power bus message definitions in twl4030.h Pali Rohár
2012-01-25 18:04 ` Marek Vasut
2012-01-25 19:24 ` Pali Rohár
2012-01-26 7:15 ` Igor Grinberg
2012-01-24 14:28 ` [U-Boot] [PATCH 04/14] Fix function readline in main.c Pali Rohár
2012-01-25 18:05 ` Marek Vasut
2012-02-27 20:39 ` Mike Frysinger
2012-01-24 14:28 ` [U-Boot] [PATCH 05/14] cfb_console: Fix function console_scrollup Pali Rohár
2012-01-25 18:06 ` Marek Vasut
2012-01-25 19:59 ` Pali Rohár
2012-03-21 9:45 ` Anatolij Gustschin
2012-03-21 10:20 ` Marek Vasut
2012-03-21 11:32 ` Anatolij Gustschin
2012-03-21 11:39 ` Anatolij Gustschin
2012-03-21 18:50 ` Pali Rohár
2012-03-21 22:58 ` Anatolij Gustschin
2012-03-22 8:58 ` Pali Rohár
2012-03-23 8:47 ` Anatolij Gustschin
2012-04-26 21:45 ` Anatolij Gustschin
2012-04-26 21:50 ` Pali Rohár
2012-04-28 15:11 ` Anatolij Gustschin
2012-04-28 15:58 ` Pali Rohár
2012-01-24 14:28 ` [U-Boot] [PATCH 06/14] cfb_console: Add function console_clear and console_clear_line Pali Rohár
2012-01-25 18:08 ` Marek Vasut
2012-01-25 19:31 ` Pali Rohár
2012-01-25 20:54 ` Marek Vasut
2012-01-24 14:28 ` [U-Boot] [PATCH 07/14] cfb_console: Add functions for moving with cursor Pali Rohár
2012-01-24 14:28 ` [U-Boot] [PATCH 08/14] cfb_console: Add support for some ANSI terminal escape codes Pali Rohár
2012-01-24 14:28 ` [U-Boot] [PATCH 09/14] New command clear: Clear the ANSI terminal Pali Rohár
2012-01-25 18:10 ` Marek Vasut
2012-01-25 19:33 ` Pali Rohár
2012-01-25 20:53 ` Marek Vasut
2012-02-14 7:02 ` Mike Frysinger
2012-01-24 14:28 ` [U-Boot] [PATCH 10/14] New config variable CONFIG_MENUCMD Pali Rohár
2012-01-25 18:12 ` Marek Vasut
2012-01-25 19:39 ` Pali Rohár
2012-01-25 20:53 ` Marek Vasut
2012-01-26 16:43 ` Pali Rohár
2012-02-14 7:09 ` Mike Frysinger
2012-01-24 14:28 ` [U-Boot] [PATCH 11/14] New config variable CONFIG_PREMONITOR Pali Rohár
2012-01-25 18:12 ` Marek Vasut
2012-01-25 19:48 ` Pali Rohár
2012-01-25 20:51 ` Marek Vasut
2012-01-25 21:24 ` Pali Rohár
2012-01-25 21:28 ` Marek Vasut
2012-01-25 21:55 ` Pali Rohár
2012-01-25 22:01 ` Marek Vasut
2012-02-14 7:04 ` Mike Frysinger
2012-01-24 14:28 ` [U-Boot] [PATCH 12/14] New board support: Nokia RX-51 aka N900 Pali Rohár
2012-01-24 14:28 ` [U-Boot] [PATCH 13/14] New command bootmenu: ANSI terminal Boot Menu support Pali Rohár
2012-01-25 18:18 ` Marek Vasut
2012-01-25 19:57 ` Pali Rohár
2012-01-27 10:51 ` Sergey Lapin
2012-02-14 7:07 ` Mike Frysinger
2012-01-24 14:28 ` [U-Boot] [PATCH 14/14] RX-51: Add support for bootmenu Pali Rohár
2012-01-24 19:25 ` [U-Boot] [PATCH 00/14] Nokia RX-51 support Graeme Russ
2012-01-25 9:48 ` Sergey Lapin
2012-01-25 11:51 ` Pali Rohár
2012-01-25 18:20 ` Marek Vasut
2012-01-25 19:08 ` Pali Rohár
2012-01-25 20:56 ` Marek Vasut
2012-01-25 21:16 ` Pali Rohár
2012-01-25 21:29 ` Marek Vasut
2012-01-25 21:53 ` Pali Rohár
2012-01-25 22:00 ` Marek Vasut
2012-01-26 16:25 ` Sergey Lapin
2012-01-26 16:39 ` Pali Rohár
2012-01-26 16:48 ` Marek Vasut
2012-01-27 8:59 ` Sergey Lapin
2012-01-27 10:27 ` Pali Rohár
2012-01-26 16:48 ` Marek Vasut
2012-01-25 17:59 ` Marek Vasut
2012-01-26 8:27 ` Graeme Russ
2012-02-04 12:26 ` Pali Rohár
2012-02-04 15:05 ` Marek Vasut
2012-02-26 20:37 ` Pali Rohár
2012-02-26 22:08 ` Marek Vasut
2012-02-27 4:10 ` Mike Frysinger
2012-02-27 18:41 ` Pali Rohár
2012-02-27 20:55 ` Marek Vasut
2012-03-04 20:21 ` Pali Rohár
2012-03-04 20:57 ` Marek Vasut
2012-03-04 21:35 ` Pali Rohár
2012-03-04 21:50 ` Marek Vasut
2012-03-05 21:54 ` Pali Rohár
2012-03-04 22:09 ` Wolfgang Denk
2012-03-05 21:56 ` Pali Rohár
2012-03-05 4:26 ` Mike Frysinger
2012-03-05 21:58 ` Pali Rohár
2012-03-05 23:09 ` Mike Frysinger
2012-03-10 13:18 ` Pali Rohár
2012-03-04 21:01 ` Mike Frysinger
2012-04-28 17:26 ` [U-Boot] [PATCH v2 00/11] " Pali Rohár
2012-04-28 17:26 ` [U-Boot] [PATCH v2 01/11] arm: Optionally use existing atags in bootm.c Pali Rohár
2012-04-28 21:20 ` Wolfgang Denk
2012-04-29 7:20 ` Pali Rohár
2012-04-29 12:16 ` Wolfgang Denk
2012-04-28 22:15 ` Marek Vasut
2012-04-29 7:14 ` Pali Rohár
2012-04-29 9:10 ` Marek Vasut
2012-04-29 9:15 ` Pali Rohár
2012-04-29 13:08 ` Marek Vasut
2012-06-01 18:31 ` Pali Rohár
2012-04-28 23:22 ` Mike Frysinger
2012-04-29 7:57 ` Pali Rohár
2012-04-28 17:26 ` [U-Boot] [PATCH v2 02/11] Add power bus message definitions in twl4030.h Pali Rohár
2012-04-28 17:26 ` [U-Boot] [PATCH v2 03/11] cfb_console: Fix function console_back Pali Rohár
2012-04-28 22:15 ` Marek Vasut
2012-04-29 7:24 ` Pali Rohár
2012-04-29 12:17 ` Wolfgang Denk
2012-05-19 19:16 ` Anatolij Gustschin
2012-06-01 18:42 ` Pali Rohár
2012-06-04 20:47 ` Anatolij Gustschin
2012-04-28 17:26 ` [U-Boot] [PATCH v2 04/11] cfb_console: Add function console_clear and console_clear_line Pali Rohár
2012-04-28 22:17 ` Marek Vasut
2012-04-28 17:26 ` [U-Boot] [PATCH v2 05/11] cfb_console: Add functions for moving with cursor Pali Rohár
2012-04-28 22:18 ` Marek Vasut
2012-04-29 7:26 ` Pali Rohár
2012-04-29 9:09 ` Marek Vasut
2012-04-29 12:18 ` Wolfgang Denk
2012-05-20 20:38 ` [U-Boot] [PATCH v3 05/11] cfb_console: Add console_clear_line function Anatolij Gustschin
2012-05-20 20:45 ` Anatolij Gustschin
2012-06-04 20:49 ` Anatolij Gustschin
2012-04-28 17:26 ` [U-Boot] [PATCH v2 06/11] cfb_console: Add support for some ANSI terminal escape codes Pali Rohár
2012-04-28 22:19 ` Marek Vasut
2012-04-29 7:29 ` Pali Rohár
2012-04-29 12:42 ` Wolfgang Denk
2012-04-28 17:26 ` [U-Boot] [PATCH v2 07/11] cfb_console: Ignore bell character Pali Rohár
2012-06-05 7:30 ` Anatolij Gustschin
2012-04-28 17:26 ` [U-Boot] [PATCH v2 08/11] video: cfb_console: flush dcache for frame buffer in DRAM Pali Rohár
2012-04-28 17:26 ` [U-Boot] [PATCH v2 09/11] New command clear: Clear the ANSI terminal Pali Rohár
2012-08-09 21:02 ` Wolfgang Denk
2012-04-28 17:26 ` [U-Boot] [PATCH v2 10/11] New config variable CONFIG_PREMONITOR Pali Rohár
2012-04-28 20:39 ` Wolfgang Denk
2012-04-29 7:37 ` Pali Rohár
2012-04-29 12:44 ` Wolfgang Denk
2012-04-28 17:26 ` [U-Boot] [PATCH v2 11/11] New board support: Nokia RX-51 aka N900 Pali Rohár
2012-04-28 21:32 ` Wolfgang Denk
2012-04-29 7:55 ` Pali Rohár
2012-04-29 9:18 ` Marek Vasut
2012-04-30 23:37 ` Tom Rini
2012-04-30 23:42 ` Marek Vasut
2012-05-01 0:41 ` Tom Rini
2012-06-01 18:39 ` Pali Rohár
2012-06-01 18:48 ` Marek Vasut
2012-06-01 19:03 ` Pali Rohár
2012-06-01 20:09 ` Marek Vasut
2012-04-29 12:49 ` Wolfgang Denk
2012-10-13 19:31 ` [U-Boot] [PATCH v3 0/5] Nokia RX-51 support Pali Rohár
2012-10-13 19:31 ` [U-Boot] [PATCH v3 1/5] arm bootm: Allow to pass board specified atags Pali Rohár
2012-10-13 23:43 ` Marek Vasut
2012-10-14 0:02 ` Pali Rohár
2012-10-14 0:18 ` Marek Vasut
2012-10-14 1:12 ` Pali Rohár
2012-10-13 19:31 ` [U-Boot] [PATCH v3 2/5] arm bootm: Do not append zero ATAG_MEM Pali Rohár
2012-10-13 23:45 ` Marek Vasut
2012-10-14 0:08 ` Pali Rohár
2012-10-14 0:17 ` Marek Vasut
2012-10-14 0:23 ` Pali Rohár
2012-10-14 0:27 ` Marek Vasut
2012-10-14 0:35 ` Pali Rohár
2012-10-14 1:08 ` Marek Vasut
2012-10-16 15:56 ` Tom Rini
2012-10-13 19:31 ` [U-Boot] [PATCH v3 3/5] Add power bus message definitions in twl4030.h Pali Rohár
2012-10-13 23:46 ` Marek Vasut
2012-10-14 0:14 ` Pali Rohár
2012-10-14 0:16 ` Marek Vasut
2012-10-14 0:51 ` Pali Rohár
2012-10-14 1:08 ` Marek Vasut
2012-10-13 19:31 ` [U-Boot] [PATCH v3 4/5] cfb_console: Add support for some ANSI terminal escape codes Pali Rohár
2012-10-13 23:48 ` Marek Vasut
2012-10-14 0:18 ` Pali Rohár
2012-10-14 0:27 ` Marek Vasut
2012-10-13 19:32 ` [U-Boot] [PATCH v3 5/5] New board support: Nokia RX-51 aka N900 Pali Rohár
2012-10-14 0:06 ` Marek Vasut
2012-10-14 8:31 ` Albert ARIBAUD
2012-10-16 14:43 ` Pali Rohár
2012-10-16 14:55 ` Marek Vasut
2012-10-16 15:46 ` Pali Rohár
2012-10-16 15:57 ` Marek Vasut
2012-10-16 16:15 ` Pali Rohár
2012-10-19 12:00 ` [U-Boot] [PATCH v4 0/5] Nokia RX-51 support Pali Rohár
2012-10-19 12:00 ` [U-Boot] [PATCH v4 1/5] arm bootm: Allow to pass board specified atags Pali Rohár
2012-10-19 12:00 ` [U-Boot] [PATCH v4 2/5] arm bootm: Do not append zero ATAG_MEM Pali Rohár
2012-10-20 9:34 ` Marek Vasut
2012-10-20 9:41 ` Pali Rohár
2012-10-26 17:44 ` Tom Rini
2012-10-26 17:52 ` Tom Rini
2012-10-27 15:29 ` Marek Vasut
2012-10-29 17:37 ` Tom Rini
2012-10-19 12:00 ` [U-Boot] [PATCH v4 3/5] Add power bus message definitions in twl4030.h Pali Rohár
2012-10-19 12:00 ` [U-Boot] [PATCH v4 4/5] cfb_console: Add support for some ANSI terminal escape codes Pali Rohár
2012-10-19 23:30 ` [U-Boot] [PATCH v5 " Anatolij Gustschin
2012-10-23 14:28 ` Pali Rohár
2012-10-19 23:38 ` [U-Boot] [PATCH v4 " Anatolij Gustschin
2012-10-23 14:25 ` Pali Rohár
2012-10-19 12:00 ` [U-Boot] [PATCH v4 5/5] New board support: Nokia RX-51 aka N900 Pali Rohár
2012-10-23 7:20 ` Igor Grinberg
2012-10-29 17:55 ` Pali Rohár
2012-10-29 17:54 ` [U-Boot] [PATCH v5 " Pali Rohár
2012-11-02 17:07 ` Tom Rini
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