diff mbox series

[V2] soc: imx8m: Correct i.MX8MP UID fuse offset

Message ID 1591742515-7108-1-git-send-email-Anson.Huang@nxp.com (mailing list archive)
State Mainlined
Commit c95c9693b112f312b59c5d100fd09a1349970fab
Headers show
Series [V2] soc: imx8m: Correct i.MX8MP UID fuse offset | expand

Commit Message

Anson Huang June 9, 2020, 10:41 p.m. UTC
Correct i.MX8MP UID fuse offset according to fuse map:

UID_LOW: 0x420
UID_HIGH: 0x430

Fixes: fc40200ebf82 ("soc: imx: increase build coverage for imx8m soc driver")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
Changes since V1:
	- add fix tag.
---
 drivers/soc/imx/soc-imx8m.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

Comments

Aisheng Dong June 10, 2020, 7:53 a.m. UTC | #1
> From: Anson Huang <Anson.Huang@nxp.com>
> Sent: Wednesday, June 10, 2020 6:42 AM
> 
> Correct i.MX8MP UID fuse offset according to fuse map:
> 
> UID_LOW: 0x420
> UID_HIGH: 0x430
> 
> Fixes: fc40200ebf82 ("soc: imx: increase build coverage for imx8m soc driver")

AFAIK "Fixes:" should point to the original patch which introduced the issue.
Not the one changing file name.

> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> ---
> Changes since V1:
> 	- add fix tag.
> ---
>  drivers/soc/imx/soc-imx8m.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/soc/imx/soc-imx8m.c b/drivers/soc/imx/soc-imx8m.c index
> 7b0759a..0bc8314 100644
> --- a/drivers/soc/imx/soc-imx8m.c
> +++ b/drivers/soc/imx/soc-imx8m.c
> @@ -22,6 +22,8 @@
>  #define OCOTP_UID_LOW			0x410
>  #define OCOTP_UID_HIGH			0x420
> 
> +#define IMX8MP_OCOTP_UID_OFFSET		0x10
> +
>  /* Same as ANADIG_DIGPROG_IMX7D */
>  #define ANADIG_DIGPROG_IMX8MM	0x800
> 
> @@ -87,6 +89,8 @@ static void __init imx8mm_soc_uid(void)  {
>  	void __iomem *ocotp_base;
>  	struct device_node *np;
> +	u32 offset = of_machine_is_compatible("fsl,imx8mp") ?
> +		     IMX8MP_OCOTP_UID_OFFSET : 0;
> 

	If (of_machine_is_compatible("fsl,imx8mp"))
		Octop_base += IMX8MP_OCOTP_UID_OFFSET;
Then you may not need the extra changes.

Regards
Aisheng

>  	np = of_find_compatible_node(NULL, NULL, "fsl,imx8mm-ocotp");
>  	if (!np)
> @@ -95,9 +99,9 @@ static void __init imx8mm_soc_uid(void)
>  	ocotp_base = of_iomap(np, 0);
>  	WARN_ON(!ocotp_base);
> 
> -	soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH);
> +	soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH + offset);
>  	soc_uid <<= 32;
> -	soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW);
> +	soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW + offset);
> 
>  	iounmap(ocotp_base);
>  	of_node_put(np);
> --
> 2.7.4
Anson Huang June 10, 2020, 7:57 a.m. UTC | #2
> Subject: RE: [PATCH V2] soc: imx8m: Correct i.MX8MP UID fuse offset
> 
> > From: Anson Huang <Anson.Huang@nxp.com>
> > Sent: Wednesday, June 10, 2020 6:42 AM
> >
> > Correct i.MX8MP UID fuse offset according to fuse map:
> >
> > UID_LOW: 0x420
> > UID_HIGH: 0x430
> >
> > Fixes: fc40200ebf82 ("soc: imx: increase build coverage for imx8m soc
> > driver")
> 
> AFAIK "Fixes:" should point to the original patch which introduced the issue.
> Not the one changing file name.

But the patch can NOT be applied to the kernel version with original file, how to
fix it?

Anson
Iuliana Prodan June 10, 2020, 8:43 a.m. UTC | #3
On 6/10/2020 10:57 AM, Anson Huang wrote:
> 
>> Subject: RE: [PATCH V2] soc: imx8m: Correct i.MX8MP UID fuse offset
>>
>>> From: Anson Huang <Anson.Huang@nxp.com>
>>> Sent: Wednesday, June 10, 2020 6:42 AM
>>>
>>> Correct i.MX8MP UID fuse offset according to fuse map:
>>>
>>> UID_LOW: 0x420
>>> UID_HIGH: 0x430
>>>
>>> Fixes: fc40200ebf82 ("soc: imx: increase build coverage for imx8m soc
>>> driver")
>>
>> AFAIK "Fixes:" should point to the original patch which introduced the issue.
>> Not the one changing file name.
> 
> But the patch can NOT be applied to the kernel version with original file, how to
> fix it?
> 
I believe you can add two "Fixes:" with the two commits: the one 
introducing the issue and the one changing the file name.

Iulia
Anson Huang June 10, 2020, 10:12 a.m. UTC | #4
Hi, Luliana

> Subject: Re: [PATCH V2] soc: imx8m: Correct i.MX8MP UID fuse offset
> 
> 
> 
> On 6/10/2020 10:57 AM, Anson Huang wrote:
> >
> >> Subject: RE: [PATCH V2] soc: imx8m: Correct i.MX8MP UID fuse offset
> >>
> >>> From: Anson Huang <Anson.Huang@nxp.com>
> >>> Sent: Wednesday, June 10, 2020 6:42 AM
> >>>
> >>> Correct i.MX8MP UID fuse offset according to fuse map:
> >>>
> >>> UID_LOW: 0x420
> >>> UID_HIGH: 0x430
> >>>
> >>> Fixes: fc40200ebf82 ("soc: imx: increase build coverage for imx8m
> >>> soc
> >>> driver")
> >>
> >> AFAIK "Fixes:" should point to the original patch which introduced the issue.
> >> Not the one changing file name.
> >
> > But the patch can NOT be applied to the kernel version with original
> > file, how to fix it?
> >
> I believe you can add two "Fixes:" with the two commits: the one introducing
> the issue and the one changing the file name.

Thanks, will add once more fix tag, please help review V3.

Anson
diff mbox series

Patch

diff --git a/drivers/soc/imx/soc-imx8m.c b/drivers/soc/imx/soc-imx8m.c
index 7b0759a..0bc8314 100644
--- a/drivers/soc/imx/soc-imx8m.c
+++ b/drivers/soc/imx/soc-imx8m.c
@@ -22,6 +22,8 @@ 
 #define OCOTP_UID_LOW			0x410
 #define OCOTP_UID_HIGH			0x420
 
+#define IMX8MP_OCOTP_UID_OFFSET		0x10
+
 /* Same as ANADIG_DIGPROG_IMX7D */
 #define ANADIG_DIGPROG_IMX8MM	0x800
 
@@ -87,6 +89,8 @@  static void __init imx8mm_soc_uid(void)
 {
 	void __iomem *ocotp_base;
 	struct device_node *np;
+	u32 offset = of_machine_is_compatible("fsl,imx8mp") ?
+		     IMX8MP_OCOTP_UID_OFFSET : 0;
 
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx8mm-ocotp");
 	if (!np)
@@ -95,9 +99,9 @@  static void __init imx8mm_soc_uid(void)
 	ocotp_base = of_iomap(np, 0);
 	WARN_ON(!ocotp_base);
 
-	soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH);
+	soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH + offset);
 	soc_uid <<= 32;
-	soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW);
+	soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW + offset);
 
 	iounmap(ocotp_base);
 	of_node_put(np);