linux-kernel - Re: [PATCH 1/6] remoteproc: imx_rproc: correct ddr alias for i.MX8M

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Message-ID: <ZpaO4FDEYoA0cpae@p14s>
Date: Tue, 16 Jul 2024 09:16:48 -0600
From: Mathieu Poirier <mathieu.poirier@...aro.org>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>, marex@...x.de,
	iuliana.prodan@....com, daniel.baluta@....com
Cc: Bjorn Andersson <andersson@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Richard Zhu <hongxing.zhu@....com>,
	linux-remoteproc@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Peng Fan <peng.fan@....com>, Terry Lv <terry.lv@....com>
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@....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@....com>
> Signed-off-by: Peng Fan <peng.fan@....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
>