From: "Pali Rohár" <pali.rohar@gmail.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@ring0.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
linux-omap@vger.kernel.org, Tony Lindgren <tony@atomide.com>,
aaro.koskinen@iki.fi, freemangordon@abv.bg
Subject: Re: n900: kernel cmdline from bootloader in DT mode
Date: Thu, 27 Nov 2014 00:25:53 +0100 [thread overview]
Message-ID: <201411270025.53559@pali> (raw)
In-Reply-To: <20141126152159.GA26123@amd>
[-- Attachment #1: Type: Text/Plain, Size: 2240 bytes --]
On Wednesday 26 November 2014 16:22:00 Pavel Machek wrote:
> On Wed 2014-11-26 14:36:42, Pali Rohár wrote:
> > On Wednesday 26 November 2014 14:28:01 Pavel Machek wrote:
> > > Hi!
> > >
> > > > for some unknown reasons when I compile kernel for n900
> > > > in DT mode it ignore cmdline passed by bootloader. When
> > > > I comment
> > > >
> > > > CONFIG_ARM_APPENDED_DTB=y
> > > >
> > > > then it boots into legacy board mode and cmdline is used
> > > > from bootloader.
> > > >
> > > > When is problem?
> > >
> > > It seems to work for me, I'm booting using 0xffff, with
> > > attached config.
> > >
> > > Pavel
> >
> > Can you try to set some "root=something" into CONFIG_CMDLINE
> > and then add real "root=" param via 0xffff?
> >
> > My problem is that I have specified ubifs mtd root in
> > CONFIG_CMDLINE and when I set correct root via bootloader
> > (from 0xffff or flasher-3.5) it is ignored and used only
> > what is specified in CONFIG_CMDLINE.
>
> CONFIG_ARM_ATAG_DTB_COMPAT=y
> CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
> # CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
> CONFIG_CMDLINE="console=ttyO2,115200 console=tty"
>
> Um.. Internal commandline should be completely ignored for me.
>
> Do you have
> CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER?
>
> Pavel
Can you try to set:
CONFIG_USE_OF=y
CONFIG_ATAGS=y
# CONFIG_DEPRECATED_PARAM_STRUCT is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
CONFIG_CMDLINE="init=/sbin/preinit ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs
rootflags=bulk_read,no_chk_data_crc rw mtdoops.mtddev=log console=tty0 console=ttyO2 omapfb_vram=7M
omapfb.mode=lcd:848x480-16 nokia-modem.pm=0"
CONFIG_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_CMDLINE_EXTEND is not set
# CONFIG_CMDLINE_FORCE is not set
CONFIG_KEXEC=y
CONFIG_ATAGS_PROC=y
# CONFIG_CRASH_DUMP is not set
CONFIG_AUTO_ZRELADDR=y
and then boot kernel 3.18-rc6 with cmdline specified in bootloader?
--
Pali Rohár
pali.rohar@gmail.com
[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 198 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: pali.rohar@gmail.com (Pali Rohár)
To: linux-arm-kernel@lists.infradead.org
Subject: n900: kernel cmdline from bootloader in DT mode
Date: Thu, 27 Nov 2014 00:25:53 +0100 [thread overview]
Message-ID: <201411270025.53559@pali> (raw)
In-Reply-To: <20141126152159.GA26123@amd>
On Wednesday 26 November 2014 16:22:00 Pavel Machek wrote:
> On Wed 2014-11-26 14:36:42, Pali Roh?r wrote:
> > On Wednesday 26 November 2014 14:28:01 Pavel Machek wrote:
> > > Hi!
> > >
> > > > for some unknown reasons when I compile kernel for n900
> > > > in DT mode it ignore cmdline passed by bootloader. When
> > > > I comment
> > > >
> > > > CONFIG_ARM_APPENDED_DTB=y
> > > >
> > > > then it boots into legacy board mode and cmdline is used
> > > > from bootloader.
> > > >
> > > > When is problem?
> > >
> > > It seems to work for me, I'm booting using 0xffff, with
> > > attached config.
> > >
> > > Pavel
> >
> > Can you try to set some "root=something" into CONFIG_CMDLINE
> > and then add real "root=" param via 0xffff?
> >
> > My problem is that I have specified ubifs mtd root in
> > CONFIG_CMDLINE and when I set correct root via bootloader
> > (from 0xffff or flasher-3.5) it is ignored and used only
> > what is specified in CONFIG_CMDLINE.
>
> CONFIG_ARM_ATAG_DTB_COMPAT=y
> CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
> # CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
> CONFIG_CMDLINE="console=ttyO2,115200 console=tty"
>
> Um.. Internal commandline should be completely ignored for me.
>
> Do you have
> CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER?
>
> Pavel
Can you try to set:
CONFIG_USE_OF=y
CONFIG_ATAGS=y
# CONFIG_DEPRECATED_PARAM_STRUCT is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
CONFIG_CMDLINE="init=/sbin/preinit ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs
rootflags=bulk_read,no_chk_data_crc rw mtdoops.mtddev=log console=tty0 console=ttyO2 omapfb_vram=7M
omapfb.mode=lcd:848x480-16 nokia-modem.pm=0"
CONFIG_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_CMDLINE_EXTEND is not set
# CONFIG_CMDLINE_FORCE is not set
CONFIG_KEXEC=y
CONFIG_ATAGS_PROC=y
# CONFIG_CRASH_DUMP is not set
CONFIG_AUTO_ZRELADDR=y
and then boot kernel 3.18-rc6 with cmdline specified in bootloader?
--
Pali Roh?r
pali.rohar at gmail.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20141127/e43e8630/attachment.sig>
next prev parent reply other threads:[~2014-11-26 23:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-26 12:54 n900: kernel cmdline from bootloader in DT mode Pali Rohár
2014-11-26 12:54 ` Pali Rohár
2014-11-26 13:28 ` Pavel Machek
2014-11-26 13:28 ` Pavel Machek
2014-11-26 13:36 ` Pali Rohár
2014-11-26 13:36 ` Pali Rohár
2014-11-26 15:22 ` Pavel Machek
2014-11-26 15:22 ` Pavel Machek
2014-11-26 15:27 ` Pali Rohár
2014-11-26 15:27 ` Pali Rohár
2015-01-24 14:01 ` Pali Rohár
2015-01-24 14:01 ` Pali Rohár
2014-11-26 23:25 ` Pali Rohár [this message]
2014-11-26 23:25 ` Pali Rohár
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=201411270025.53559@pali \
--to=pali.rohar@gmail.com \
--cc=aaro.koskinen@iki.fi \
--cc=freemangordon@abv.bg \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-omap@vger.kernel.org \
--cc=pavel@ucw.cz \
--cc=sre@ring0.de \
--cc=tony@atomide.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.