[PATCHv2] remoteproc: imx_rproc: add missing DRAM range for i.MX93

[PATCHv2] remoteproc: imx_rproc: add missing DRAM range for i.MX93

[Zhiqiang Hou]

From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>

The M33 DRAM view of 256MB ranges 0x[a,b]0000000 are mapped to
0xa0000000 of A55 mapping view.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
---
V2:
 - Refined the patch subject.

 drivers/remoteproc/imx_rproc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 7f54322244ac..175c2d309979 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -198,6 +198,9 @@ static const struct imx_rproc_att imx_rproc_att_imx93[] = {
 	{ 0x80000000, 0x80000000, 0x10000000, 0 },
 	{ 0x90000000, 0x80000000, 0x10000000, 0 },
 
+	{ 0xA0000000, 0xA0000000, 0x10000000, 0 },
+	{ 0xB0000000, 0xA0000000, 0x10000000, 0 },
+
 	{ 0xC0000000, 0xC0000000, 0x10000000, 0 },
 	{ 0xD0000000, 0xC0000000, 0x10000000, 0 },
 };
-- 
2.17.1

Re: [PATCHv2] remoteproc: imx_rproc: add missing DRAM range for i.MX93

[Peng Fan]

Hi Zhiqiang,

Thanks for your patch.

On Sun, May 17, 2026 at 04:03:01PM +0800, Zhiqiang Hou wrote:
>From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
>
>The M33 DRAM view of 256MB ranges 0x[a,b]0000000 are mapped to
>0xa0000000 of A55 mapping view.

Let's add more details, as below:

The M33 DRAM address ranges 0xA0000000-0xAFFFFFFF(None Secure) and
0xB0000000-0xBFFFFFFF(Secure) are both mapped to 0xA0000000-0xAFFFFFFF
in the A55 address space.

These ranges are currently missing from the i.MX93 remoteproc address
translation table, which may lead to invalid address translation for
firmware accessing these regions.

Add the missing mappings to complete the DRAM coverage.

>

Add fix tag:
Fixes: 9222fabf0e39d ("remoteproc: imx_rproc: Support i.MX93")

Thanks
Peng.

RE: [PATCHv2] remoteproc: imx_rproc: add missing DRAM range for i.MX93

[Z.Q. Hou]

> -----Original Message-----
> From: Peng Fan (OSS) <peng.fan@oss.nxp.com>
> Sent: Monday, May 18, 2026 9:21 AM
> To: Z.Q. Hou <zhiqiang.hou@nxp.com>
> Cc: imx@lists.linux.dev; linux-remoteproc@vger.kernel.org;
> andersson@kernel.org; mathieu.poirier@linaro.org; Frank Li <frank.li@nxp.com>;
> s.hauer@pengutronix.de; festevam@gmail.com
> Subject: Re: [PATCHv2] remoteproc: imx_rproc: add missing DRAM range for
> i.MX93
> 
> Hi Zhiqiang,
> 
> Thanks for your patch.
> 
> On Sun, May 17, 2026 at 04:03:01PM +0800, Zhiqiang Hou wrote:
> >From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> >
> >The M33 DRAM view of 256MB ranges 0x[a,b]0000000 are mapped to
> >0xa0000000 of A55 mapping view.
> 
> Let's add more details, as below:
> 
> The M33 DRAM address ranges 0xA0000000-0xAFFFFFFF(None Secure) and
> 0xB0000000-0xBFFFFFFF(Secure) are both mapped to 0xA0000000-0xAFFFFFFF in
> the A55 address space.
> 
> These ranges are currently missing from the i.MX93 remoteproc address
> translation table, which may lead to invalid address translation for firmware
> accessing these regions.
> 
> Add the missing mappings to complete the DRAM coverage.
> 
> >
> 
> Add fix tag:
> Fixes: 9222fabf0e39d ("remoteproc: imx_rproc: Support i.MX93")

Updated in V3. Thanks for your comments!

Thanks,
Zhiqiang