diff mbox series

[1/6] remoteproc: imx_rproc: correct ddr alias for i.MX8M

Message ID 20240712-imx_rproc-v1-1-7bcf6732d328@nxp.com (mailing list archive)
State Superseded
Headers show
Series remoteproc: imx_rproc: various patches for misc | expand

Commit Message

Peng Fan (OSS) July 12, 2024, 8:34 a.m. UTC 
From: Peng Fan <peng.fan@nxp.com>

The DDR Alias address should be 0x40000000 according to RM, so correct
it.

Fixes: 4ab8f9607aad ("remoteproc: imx_rproc: support i.MX8MQ/M")
Reported-by: Terry Lv <terry.lv@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/remoteproc/imx_rproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Mathieu Poirier July 16, 2024, 3:16 p.m. UTC | #1 
Good morning,

On Fri, Jul 12, 2024 at 04:34:54PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> The DDR Alias address should be 0x40000000 according to RM, so correct
> it.
> 
> Fixes: 4ab8f9607aad ("remoteproc: imx_rproc: support i.MX8MQ/M")

This commit was merged more than 3 years ago...  I don't see how such a blatant
mistake could have survived this long without causing problems or being noticed.
On top of things checkpatch gives me a warning.

> Reported-by: Terry Lv <terry.lv@nxp.com>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
>  drivers/remoteproc/imx_rproc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index 144c8e9a642e..3c8b64db8823 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -210,7 +210,7 @@ static const struct imx_rproc_att imx_rproc_att_imx8mq[] = {
>  	/* QSPI Code - alias */
>  	{ 0x08000000, 0x08000000, 0x08000000, 0 },
>  	/* DDR (Code) - alias */
> -	{ 0x10000000, 0x80000000, 0x0FFE0000, 0 },
> +	{ 0x10000000, 0x40000000, 0x0FFE0000, 0 },

Without access to HW or the documentation there is no way for me to assess the
validity of this patch.  Marek, Iuliana and Daniel - please review and test this
patch.

Thanks,
Mathieu

>  	/* TCML */
>  	{ 0x1FFE0000, 0x007E0000, 0x00020000, ATT_OWN  | ATT_IOMEM},
>  	/* TCMU */
> 
> -- 
> 2.37.1
>
Mathieu Poirier July 16, 2024, 3:52 p.m. UTC | #2 
On Tue, Jul 16, 2024 at 06:49:39PM +0300, Iuliana Prodan wrote:
> Hi Mathieu,
> 
> On 7/16/2024 6:16 PM, Mathieu Poirier wrote:
> > Good morning,
> > 
> > On Fri, Jul 12, 2024 at 04:34:54PM +0800, Peng Fan (OSS) wrote:
> > > From: Peng Fan<peng.fan@nxp.com>
> > > 
> > > The DDR Alias address should be 0x40000000 according to RM, so correct
> > > it.
> > > 
> > > Fixes: 4ab8f9607aad ("remoteproc: imx_rproc: support i.MX8MQ/M")
> > This commit was merged more than 3 years ago...  I don't see how such a blatant
> > mistake could have survived this long without causing problems or being noticed.
> 
> Most probably whoever used imx_rproc and ran into this issue checked NXP
> tree where this is fixed - see here https://github.com/nxp-imx/linux-imx/blob/lf-6.6.y/drivers/remoteproc/imx_rproc.c#L232
> > On top of things checkpatch gives me a warning.
> > 
> > > Reported-by: Terry Lv<terry.lv@nxp.com>
> > > Signed-off-by: Peng Fan<peng.fan@nxp.com>
> > > ---
> > >   drivers/remoteproc/imx_rproc.c | 2 +-
> > >   1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> > > index 144c8e9a642e..3c8b64db8823 100644
> > > --- a/drivers/remoteproc/imx_rproc.c
> > > +++ b/drivers/remoteproc/imx_rproc.c
> > > @@ -210,7 +210,7 @@ static const struct imx_rproc_att imx_rproc_att_imx8mq[] = {
> > >   	/* QSPI Code - alias */
> > >   	{ 0x08000000, 0x08000000, 0x08000000, 0 },
> > >   	/* DDR (Code) - alias */
> > > -	{ 0x10000000, 0x80000000, 0x0FFE0000, 0 },
> > > +	{ 0x10000000, 0x40000000, 0x0FFE0000, 0 },
> > Without access to HW or the documentation there is no way for me to assess the
> > validity of this patch.  Marek, Iuliana and Daniel - please review and test this
> > patch.
> 
> HW documentation can be downloaded from
> https://www.nxp.com/webapp/Download?colCode=IMX8MDQLQRM (one needs to create
> an account)
> So,
> Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
>

The very quick reply is much appreciated. I will merge this at the beginning of
the 6.11 cycle.

> Thanks,
> Iulia
> 
> > Thanks,
> > Mathieu
> > 
> > >   	/* TCML */
> > >   	{ 0x1FFE0000, 0x007E0000, 0x00020000, ATT_OWN  | ATT_IOMEM},
> > >   	/* TCMU */
> > > 
> > > -- 
> > > 2.37.1
> > >
Peng Fan July 19, 2024, 5:46 a.m. UTC | #3 
> Subject: Re: [PATCH 1/6] remoteproc: imx_rproc: correct ddr alias for
> i.MX8M
> 
> Good morning,
> 
> On Fri, Jul 12, 2024 at 04:34:54PM +0800, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@nxp.com>
> >
> > The DDR Alias address should be 0x40000000 according to RM, so
> correct
> > it.
> >
> > Fixes: 4ab8f9607aad ("remoteproc: imx_rproc: support i.MX8MQ/M")
> 
> This commit was merged more than 3 years ago...  I don't see how such
> a blatant mistake could have survived this long without causing
> problems or being noticed.

I got this reported quite sometime ago inside NXP. For community
users, not sure people encounter issue or not.

I am trying to upstream downstream patches, so post this out.

> On top of things checkpatch gives me a warning.

The warning could ignored.
There is no public url for reporting this issue.

> 
> > Reported-by: Terry Lv <terry.lv@nxp.com>
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > ---
> >  drivers/remoteproc/imx_rproc.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/remoteproc/imx_rproc.c
> > b/drivers/remoteproc/imx_rproc.c index
> 144c8e9a642e..3c8b64db8823
> > 100644
> > --- a/drivers/remoteproc/imx_rproc.c
> > +++ b/drivers/remoteproc/imx_rproc.c
> > @@ -210,7 +210,7 @@ static const struct imx_rproc_att
> imx_rproc_att_imx8mq[] = {
> >  	/* QSPI Code - alias */
> >  	{ 0x08000000, 0x08000000, 0x08000000, 0 },
> >  	/* DDR (Code) - alias */
> > -	{ 0x10000000, 0x80000000, 0x0FFE0000, 0 },
> > +	{ 0x10000000, 0x40000000, 0x0FFE0000, 0 },
> 
> Without access to HW or the documentation there is no way for me to
> assess the validity of this patch.  Marek, Iuliana and Daniel - please
> review and test this patch.

I see Iuliana gaves R-b and doc link.

Thanks,
Peng.

> 
> Thanks,
> Mathieu
> 
> >  	/* TCML */
> >  	{ 0x1FFE0000, 0x007E0000, 0x00020000, ATT_OWN  |
> ATT_IOMEM},
> >  	/* TCMU */
> >
> > --
> > 2.37.1
> >
diff mbox series

Patch

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 144c8e9a642e..3c8b64db8823 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -210,7 +210,7 @@  static const struct imx_rproc_att imx_rproc_att_imx8mq[] = {
 	/* QSPI Code - alias */
 	{ 0x08000000, 0x08000000, 0x08000000, 0 },
 	/* DDR (Code) - alias */
-	{ 0x10000000, 0x80000000, 0x0FFE0000, 0 },
+	{ 0x10000000, 0x40000000, 0x0FFE0000, 0 },
 	/* TCML */
 	{ 0x1FFE0000, 0x007E0000, 0x00020000, ATT_OWN  | ATT_IOMEM},
 	/* TCMU */