From: Marek Vasut <marex@denx.de>
To: Marcel Ziswiler <marcel.ziswiler@toradex.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Cc: "linux@armlinux.org.uk" <linux@armlinux.org.uk>,
"andreas@kemnade.info" <andreas@kemnade.info>,
"festevam@gmail.com" <festevam@gmail.com>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"linux-imx@nxp.com" <linux-imx@nxp.com>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"pzimmermann@dh-electronics.com" <pzimmermann@dh-electronics.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4 5/9] ARM: imx_v6_v7_defconfig: build imx sdma driver as module
Date: Mon, 20 Sep 2021 18:14:54 +0200 [thread overview]
Message-ID: <f4d57f8e-2c84-0abb-7031-1f878eb28c08@denx.de> (raw)
In-Reply-To: <b399f461991b3dc6ba3d3332a054e7feea1d37f1.camel@toradex.com>
On 9/20/21 5:55 PM, Marcel Ziswiler wrote:
> On Mon, 2021-09-20 at 16:52 +0200, Marek Vasut wrote:
>> On 9/20/21 4:49 PM, Marcel Ziswiler wrote:
>>> From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
>>>
>>> Build CONFIG_IMX_SDMA as a module to avoid the following boot issue:
>>>
>>> [ 5.214751] imx-sdma 20ec000.sdma: Direct firmware load for
>>> imx/sdma/sdma-imx6q.bin failed with error -2
>>> [ 5.215762] imx-sdma 20ec000.sdma: Falling back to sysfs fallback
>>> for: imx/sdma/sdma-imx6q.bin
>>
>> Isn't there some ROM-side SDMA firmware baked into the MX6 which is used
>> as a fallback if loading newer one from filesystem fails ? I suspect the
>> default ROM firmware might be buggy.
>
> I'm not so sure about this. At least it seems to fail if no external firmware can be loaded.
See e.g. SDMA chapter in MX6SDLRM or similar, it does talk about 4k boot
ROM, which contains scripts and utilities later referenced by scripts in
RAM. It might be worth looking into that a bit further, but that seems
like a separate topic from this patch.
WARNING: multiple messages have this Message-ID (diff)
From: Marek Vasut <marex@denx.de>
To: Marcel Ziswiler <marcel.ziswiler@toradex.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Cc: "linux@armlinux.org.uk" <linux@armlinux.org.uk>,
"andreas@kemnade.info" <andreas@kemnade.info>,
"festevam@gmail.com" <festevam@gmail.com>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"linux-imx@nxp.com" <linux-imx@nxp.com>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"pzimmermann@dh-electronics.com" <pzimmermann@dh-electronics.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4 5/9] ARM: imx_v6_v7_defconfig: build imx sdma driver as module
Date: Mon, 20 Sep 2021 18:14:54 +0200 [thread overview]
Message-ID: <f4d57f8e-2c84-0abb-7031-1f878eb28c08@denx.de> (raw)
In-Reply-To: <b399f461991b3dc6ba3d3332a054e7feea1d37f1.camel@toradex.com>
On 9/20/21 5:55 PM, Marcel Ziswiler wrote:
> On Mon, 2021-09-20 at 16:52 +0200, Marek Vasut wrote:
>> On 9/20/21 4:49 PM, Marcel Ziswiler wrote:
>>> From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
>>>
>>> Build CONFIG_IMX_SDMA as a module to avoid the following boot issue:
>>>
>>> [ 5.214751] imx-sdma 20ec000.sdma: Direct firmware load for
>>> imx/sdma/sdma-imx6q.bin failed with error -2
>>> [ 5.215762] imx-sdma 20ec000.sdma: Falling back to sysfs fallback
>>> for: imx/sdma/sdma-imx6q.bin
>>
>> Isn't there some ROM-side SDMA firmware baked into the MX6 which is used
>> as a fallback if loading newer one from filesystem fails ? I suspect the
>> default ROM firmware might be buggy.
>
> I'm not so sure about this. At least it seems to fail if no external firmware can be loaded.
See e.g. SDMA chapter in MX6SDLRM or similar, it does talk about 4k boot
ROM, which contains scripts and utilities later referenced by scripts in
RAM. It might be worth looking into that a bit further, but that seems
like a separate topic from this patch.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-09-20 16:16 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-20 14:49 [PATCH v4 0/9] ARM: prepare and add colibri imx6ull 1gb (emmc) support Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-09-20 14:49 ` [PATCH v4 1/9] ARM: imx_v6_v7_defconfig: enable mtd physmap Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-10-05 3:22 ` Shawn Guo
2021-10-05 3:22 ` Shawn Guo
2021-09-20 14:49 ` [PATCH v4 2/9] ARM: imx_v6_v7_defconfig: enable fb Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-09-20 14:49 ` [PATCH v4 3/9] ARM: imx_v6_v7_defconfig: change snd soc tlv320aic3x to i2c variant Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-10-05 3:23 ` Shawn Guo
2021-10-05 3:23 ` Shawn Guo
2021-09-20 14:49 ` [PATCH v4 4/9] ARM: imx_v6_v7_defconfig: rebuild default configuration Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-10-05 3:23 ` Shawn Guo
2021-10-05 3:23 ` Shawn Guo
2021-09-20 14:49 ` [PATCH v4 5/9] ARM: imx_v6_v7_defconfig: build imx sdma driver as module Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-09-20 14:52 ` Marek Vasut
2021-09-20 14:52 ` Marek Vasut
2021-09-20 15:55 ` Marcel Ziswiler
2021-09-20 15:55 ` Marcel Ziswiler
2021-09-20 16:14 ` Marek Vasut [this message]
2021-09-20 16:14 ` Marek Vasut
2021-09-20 16:50 ` Lucas Stach
2021-09-20 16:50 ` Lucas Stach
2021-10-05 3:24 ` Shawn Guo
2021-10-05 3:24 ` Shawn Guo
2021-09-20 14:49 ` [PATCH v4 6/9] ARM: imx_v6_v7_defconfig: enable bpf syscall and cgroup bpf Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-10-05 3:24 ` Shawn Guo
2021-10-05 3:24 ` Shawn Guo
2021-09-20 14:49 ` [PATCH v4 7/9] dt-bindings: arm: fsl: clean-up all toradex boards/modules Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-10-05 3:27 ` Shawn Guo
2021-10-05 3:27 ` Shawn Guo
2021-09-20 14:49 ` [PATCH v4 8/9] ARM: dts: colibri-imx6ull-emmc: add device tree Marcel Ziswiler
2021-09-20 14:49 ` Marcel Ziswiler
2021-10-05 3:28 ` Shawn Guo
2021-10-05 3:28 ` Shawn Guo
2021-10-05 4:13 ` Marcel Ziswiler
2021-10-05 4:13 ` Marcel Ziswiler
2021-10-05 5:37 ` Shawn Guo
2021-10-05 5:37 ` Shawn Guo
2021-09-20 14:49 ` [PATCH v4 9/9] dt-bindings: arm: fsl: add toradex,colibri-imx6ull-emmc Marcel Ziswiler
2021-09-20 14:49 ` [PATCH v4 9/9] dt-bindings: arm: fsl: add toradex, colibri-imx6ull-emmc Marcel Ziswiler
2021-10-05 3:28 ` [PATCH v4 9/9] dt-bindings: arm: fsl: add toradex,colibri-imx6ull-emmc Shawn Guo
2021-10-05 3:28 ` Shawn Guo
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=f4d57f8e-2c84-0abb-7031-1f878eb28c08@denx.de \
--to=marex@denx.de \
--cc=andreas@kemnade.info \
--cc=festevam@gmail.com \
--cc=kernel@pengutronix.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=marcel.ziswiler@toradex.com \
--cc=pzimmermann@dh-electronics.com \
--cc=s.hauer@pengutronix.de \
--cc=shawnguo@kernel.org \
/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.