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From: Jerry Van Baren <gerald.vanbaren@smiths-aerospace.com>
To: Timur Tabi <timur@freescale.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 10/17] bootwrapper: Add dt_set_mac_addresses().
Date: Wed, 21 Mar 2007 11:25:30 -0400	[thread overview]
Message-ID: <46014E6A.90002@smiths-aerospace.com> (raw)
In-Reply-To: <460148DC.3020600@freescale.com>

Timur Tabi wrote:
> David Gibson wrote:
> 
>> Ah, and it can't add the property if it's not there at all.  Ok, I
>> think I understand now.  But.. does u-boot directly use the dts files
>> from the kernel tree, or does it have its own copies?
> 
> I'm not sure what you mean by that.  You compile the DTS into a DTB, and 
> then make the DTB available to U-Boot.  That can mean either storing it 
> in flash, or tftp'ing it into memory.  When you boot Linux via the 
> U-Boot "bootm" command, you give it the address of the DTB in memory. 
> U-Boot than looks for various things and updates them.  It also creates 
> a couple new things, like a 'chosen' section.
> 
> If the DTB is in flash, it copies it to RAM.  Then it updates the 
> in-memory copy.  It's very hack-ish, though.  I think it just overwrites 
> various nodes as it pleases, and then reconnects everything.

FWIIW, I'm getting close to having a usable implementation of a new 
u-boot command "fdt" that is a lot cleaner than the hack-ish automagical 
bootm copying and updating (and uses libfdt - thanks, David!).  I just 
sent an update this morning:
<http://article.gmane.org/gmane.comp.boot-loaders.u-boot/27187>

[snip]

Best regards,
gvb

  reply	other threads:[~2007-03-21 15:25 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-16 17:26 [PATCH 00/17] bootwrapper/cuImage patches Scott Wood
2007-03-16 17:27 ` [PATCH 01/17] bootwrapper: Make ft_create_node() pay attention to the parent parameter Scott Wood
2007-03-17  1:23   ` David Gibson
2007-03-16 17:27 ` [PATCH 02/17] bootwrapper: Add dt_ops methods Scott Wood
2007-03-17  1:24   ` David Gibson
2007-03-16 17:27 ` [PATCH 03/17] bootwrapper: Add xlate_reg(), and use it to find serial registers Scott Wood
2007-03-20  3:50   ` David Gibson
2007-03-20 16:34     ` Scott Wood
2007-03-21  3:12       ` David Gibson
2007-03-21 13:49     ` Segher Boessenkool
2007-03-21 16:01       ` Scott Wood
2007-03-21 19:11         ` Segher Boessenkool
2007-03-16 17:27 ` [PATCH 04/17] bootwrapper: Make compression of the kernel image optional Scott Wood
2007-03-17  1:25   ` David Gibson
2007-03-21 15:03   ` Patch: " Milton Miller
2007-03-16 17:28 ` [PATCH 05/17] bootwrapper: misc device tree fixes Scott Wood
2007-03-21  1:51   ` David Gibson
2007-03-22 16:22     ` Scott Wood
2007-03-23  3:26       ` David Gibson
2007-03-21 13:22   ` Segher Boessenkool
2007-03-16 17:28 ` [PATCH 06/17] Document the linux,network-index property Scott Wood
2007-03-17  1:26   ` David Gibson
2007-03-21 13:30   ` Segher Boessenkool
2007-03-21 14:48     ` Yoder Stuart-B08248
2007-03-21 18:57       ` Segher Boessenkool
2007-03-22  0:29         ` David Gibson
2007-03-22 11:11           ` Segher Boessenkool
2007-03-23  3:19             ` David Gibson
2007-03-23 11:36               ` Segher Boessenkool
2007-03-23 23:59                 ` David Gibson
2007-03-24  0:23                   ` Segher Boessenkool
2007-03-23 15:00         ` Scott Wood
2007-03-23 16:42           ` Segher Boessenkool
2007-03-16 17:28 ` [PATCH 07/17] bootwrapper: Add dt_set_memory(), to fill in the /memory node Scott Wood
2007-03-17  1:26   ` David Gibson
2007-03-21 13:32     ` Segher Boessenkool
2007-03-21 23:42       ` David Gibson
2007-03-22 11:02         ` Segher Boessenkool
2007-03-23  3:24           ` David Gibson
2007-03-23  6:49             ` Stefan Roese
2007-03-23  7:40               ` David Gibson
2007-03-23 12:34             ` Segher Boessenkool
2007-03-16 17:28 ` [PATCH 08/17] bootwrapper: Make setprop accept a const buffer Scott Wood
2007-03-17  1:27   ` David Gibson
2007-03-16 17:28 ` [PATCH 09/17] bootwrapper: Add dt_set_cpu_clocks() Scott Wood
2007-03-17  1:28   ` David Gibson
2007-03-16 17:28 ` [PATCH 10/17] bootwrapper: Add dt_set_mac_addresses() Scott Wood
2007-03-17  1:31   ` David Gibson
2007-03-18  0:22     ` Timur Tabi
2007-03-18 11:56       ` David Gibson
2007-03-19 15:09         ` Timur Tabi
2007-03-20  3:59           ` David Gibson
2007-03-20 14:00             ` Timur Tabi
2007-03-21  2:54               ` David Gibson
2007-03-21 15:01                 ` Timur Tabi
2007-03-21 15:25                   ` Jerry Van Baren [this message]
2007-03-21 15:55                     ` Timur Tabi
2007-03-22  0:06                   ` David Gibson
2007-03-22 15:13                     ` Timur Tabi
2007-03-22 15:15                     ` Jon Loeliger
2007-03-23  3:22                       ` David Gibson
2007-03-23 14:38                         ` Timur Tabi
2007-03-23 16:37                           ` Segher Boessenkool
2007-03-23 16:42                             ` Timur Tabi
2007-03-23 16:51                               ` Segher Boessenkool
2007-03-23 16:54                                 ` Timur Tabi
2007-03-23 23:17                             ` David Gibson
2007-03-20 18:17           ` Jon Loeliger
2007-03-21 13:45           ` Segher Boessenkool
2007-03-21 15:15             ` Timur Tabi
2007-03-21 19:07               ` Segher Boessenkool
2007-03-21 19:10                 ` Timur Tabi
2007-03-21 19:34                   ` Segher Boessenkool
2007-03-21 19:39                     ` Timur Tabi
2007-03-21 19:48                       ` Segher Boessenkool
2007-03-21 20:03                         ` Timur Tabi
2007-03-21 20:22                           ` Olof Johansson
2007-03-21 21:58                             ` Segher Boessenkool
2007-03-21 21:54                           ` Segher Boessenkool
2007-03-21 20:34                         ` Doug Maxey
2007-03-21 22:01                           ` Segher Boessenkool
2007-03-21 13:38         ` Segher Boessenkool
2007-03-21 15:09           ` Timur Tabi
2007-03-16 17:28 ` [PATCH 11/17] bootwrapper: Make set_cmdline non-static, and accept a const buffer Scott Wood
2007-03-17  1:36   ` David Gibson
2007-03-16 17:29 ` [PATCH 12/17] bootwrapper: Make set_cmdline() create /chosen if it doesn't exist Scott Wood
2007-03-21 13:32   ` Segher Boessenkool
2007-03-16 17:29 ` [PATCH 13/17] bootwrapper: Add ppcboot.h Scott Wood
2007-03-16 17:29 ` [PATCH 14/17] bootwrapper: Add support for cuboot platforms Scott Wood
2007-03-16 17:29 ` [PATCH 15/17] bootwrapper: Add cmd_wrap_dt Scott Wood
2007-03-16 17:29 ` [PATCH 16/17] bootwrapper: Add a cuImage target Scott Wood
2007-03-16 17:29 ` [PATCH 17/17] bootwrapper: cuboot for 83xx Scott Wood

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