From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] ARM: PRIMA2: use DT_MACHINE_START and convert to generic board
Date: Tue, 21 Aug 2012 08:44:05 +0000 [thread overview]
Message-ID: <201208210844.05153.arnd@arndb.de> (raw)
In-Reply-To: <CAGsJ_4x+sm9=bg1Riyeb6JF0sSC-n=ZBAy6ibx_Styu5rM9yYA@mail.gmail.com>
On Tuesday 21 August 2012, Barry Song wrote:
> > I mean the old version, not the new one. If you use MACHINE_START,
> > you cannot access the device tree data from the boot loader, which
> > means that none of the device drivers find their devices.
>
> sorry i didn't get you.
>
> DT is read to 0x3608000 by bootloader, and bootm has param "bootm
> 0x02008000 - 0x3608000" as:
>
> bootcmd=mmc read 0 0x3608000 0x3780 0x80;mmc read 0 0x02008000 0x1800
> 0x1800;fdt addr 0x3608000;
> fdt resize;bootm 0x02008000 - 0x3608000
>
> kernel has been always able to read DT data from bootloader.
Ah, right. I had to read the initialition code again, my incorrect
assumption was that we could not use a machine_desc that is
declared with MACHINE_START() together with a flattened device tree.
Arnd
next prev parent reply other threads:[~2012-08-21 8:44 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-20 8:19 [PATCH 0/3] ARM: PRIMA2: some patches prepared to support new SiRF SoCs Barry Song
2012-08-20 8:19 ` [PATCH 1/3] ARM: PRIMA2: use DT_MACHINE_START and convert to generic board Barry Song
2012-08-20 20:56 ` Arnd Bergmann
2012-08-21 1:49 ` Barry Song
2012-08-21 7:53 ` Arnd Bergmann
2012-08-21 8:26 ` Barry Song
2012-08-21 8:44 ` Arnd Bergmann [this message]
2012-08-20 8:19 ` [PATCH 2/3] ARM: PRIMA2: make mach-prima2 common for all SiRF series SoC Barry Song
2012-08-20 21:06 ` Arnd Bergmann
2012-08-21 1:56 ` Barry Song
2012-08-21 7:57 ` Arnd Bergmann
2012-08-21 9:16 ` Barry Song
2012-08-21 9:20 ` Arnd Bergmann
2012-08-28 6:15 ` Barry Song
2012-08-28 8:08 ` Barry Song
2012-08-28 14:28 ` Stephen Warren
2012-08-28 14:57 ` Barry Song
2012-08-21 9:29 ` Barry Song
2012-08-21 10:16 ` Arnd Bergmann
2012-08-21 2:06 ` Barry Song
2012-08-21 7:55 ` Arnd Bergmann
2012-08-20 8:19 ` [PATCH 3/3] ARM: SIRF: make sirf irqchip driver selectable since new SoCs will have GIC Barry Song
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