diff mbox series

[net-next,v4,5/7] ARM64: dts: marvell: Fix some common switch mistakes

Message ID 20231018-marvell-88e6152-wan-led-v4-5-3ee0c67383be@linaro.org (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series Create a binding for the Marvell MV88E6xxx DSA switches | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 98 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Linus Walleij Oct. 18, 2023, 9:03 a.m. UTC
Fix some errors in the Marvell MV88E6xxx switch descriptions:
- The top node had no address size or cells.
- switch0@0 is not OK, should be switch@0.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi   |  4 +---
 arch/arm64/boot/dts/marvell/armada-3720-gl-mv1000.dts      |  4 +---
 arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts     | 12 ++++++------
 arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts       |  2 --
 arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts |  2 +-
 arch/arm64/boot/dts/marvell/cn9130-crb.dtsi                |  4 +---
 6 files changed, 10 insertions(+), 18 deletions(-)

Comments

Andrew Lunn Oct. 18, 2023, 1:43 p.m. UTC | #1
On Wed, Oct 18, 2023 at 11:03:44AM +0200, Linus Walleij wrote:
> Fix some errors in the Marvell MV88E6xxx switch descriptions:
> - The top node had no address size or cells.
> - switch0@0 is not OK, should be switch@0.
> 
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
Vladimir Oltean Oct. 19, 2023, 2:40 p.m. UTC | #2
+Marek

On Wed, Oct 18, 2023 at 11:03:44AM +0200, Linus Walleij wrote:
> Fix some errors in the Marvell MV88E6xxx switch descriptions:
> - The top node had no address size or cells.
> - switch0@0 is not OK, should be switch@0.
> 
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> index 9eab2bb22134..c69cb4e191e5 100644
> --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> @@ -305,7 +305,7 @@ phy1: ethernet-phy@1 {
>  	};
>  
>  	/* switch nodes are enabled by U-Boot if modules are present */
> -	switch0@10 {
> +	switch@10 {

As the comment says: U-Boot
(https://elixir.bootlin.com/u-boot/latest/source/board/CZ.NIC/turris_mox/turris_mox.c#L728)
sets up status = "okay" for these nodes depending on the MOXTET
configuration. It doesn't look as if it's doing that by alias, just by
path ("%s/switch%i@%x").

I have a Turris MOX, please allow me some time to test if the node name
change is going to be significant and cause regressions. I expect the
answer to be yes (sadly).

>  		compatible = "marvell,mv88e6190";
>  		reg = <0x10>;
>  		dsa,member = <0 0>;
> @@ -430,7 +430,7 @@ port-sfp@a {
>  		};
>  	};
>  
> -	switch0@2 {
> +	switch@2 {
>  		compatible = "marvell,mv88e6085";
>  		reg = <0x2>;
>  		dsa,member = <0 0>;
> @@ -497,7 +497,7 @@ port@5 {
>  		};
>  	};
>  
> -	switch1@11 {
> +	switch@11 {
>  		compatible = "marvell,mv88e6190";
>  		reg = <0x11>;
>  		dsa,member = <0 1>;
> @@ -622,7 +622,7 @@ port-sfp@a {
>  		};
>  	};
>  
> -	switch1@2 {
> +	switch@2 {
>  		compatible = "marvell,mv88e6085";
>  		reg = <0x2>;
>  		dsa,member = <0 1>;
> @@ -689,7 +689,7 @@ port@5 {
>  		};
>  	};
>  
> -	switch2@12 {
> +	switch@12 {
>  		compatible = "marvell,mv88e6190";
>  		reg = <0x12>;
>  		dsa,member = <0 2>;
> @@ -805,7 +805,7 @@ port-sfp@a {
>  		};
>  	};
>  
> -	switch2@2 {
> +	switch@2 {
>  		compatible = "marvell,mv88e6085";
>  		reg = <0x2>;
>  		dsa,member = <0 2>;
Vladimir Oltean Oct. 19, 2023, 2:49 p.m. UTC | #3
On Thu, Oct 19, 2023 at 05:40:22PM +0300, Vladimir Oltean wrote:
> +Marek
> 
> On Wed, Oct 18, 2023 at 11:03:44AM +0200, Linus Walleij wrote:
> > Fix some errors in the Marvell MV88E6xxx switch descriptions:
> > - The top node had no address size or cells.
> > - switch0@0 is not OK, should be switch@0.
> > 
> > Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> > ---
> > diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > index 9eab2bb22134..c69cb4e191e5 100644
> > --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > @@ -305,7 +305,7 @@ phy1: ethernet-phy@1 {
> >  	};
> >  
> >  	/* switch nodes are enabled by U-Boot if modules are present */
> > -	switch0@10 {
> > +	switch@10 {
> 
> As the comment says: U-Boot
> (https://elixir.bootlin.com/u-boot/latest/source/board/CZ.NIC/turris_mox/turris_mox.c#L728)
> sets up status = "okay" for these nodes depending on the MOXTET
> configuration. It doesn't look as if it's doing that by alias, just by
> path ("%s/switch%i@%x").
> 
> I have a Turris MOX, please allow me some time to test if the node name
> change is going to be significant and cause regressions. I expect the
> answer to be yes (sadly).

Yeah, it's bad.

U-Boot 2018.11 (Dec 16 2018 - 12:50:19 +0000), Build: jenkins-turris-os-packages-kittens-mox-90

DRAM:  1 GiB
Enabling Armada 3720 wComphy-0: SGMII1        3.125 Gbps
Comphy-1: PEX0          5 Gbps
Comphy-2: USB3_HOST0    5 Gbps
MMC:   sdhci@d8000: 0
Loading Environment from SPI Flash... SF: Detected w25q64dw with page size 256 Bytes, erase size 4 KiB, total 8 MiB
OK
Model: CZ.NIC Turris Mox Board
Net:   eth0: neta@30000
Turris Mox:
  Board version: 22
  RAM size: 1024 MiB
  SD/eMMC version: SD
Module Topology:
   1: Peridot Switch Module (8-port)
   2: Peridot Switch Module (8-port)
   3: Peridot Switch Module (8-port)
   4: SFP Module

Hit any key to stop autoboot:  0
=> run sd_tftp_boot
neta@30000 Waiting for PHY auto negotiation to complete....... done
BOOTP broadcast 1
BOOTP broadcast 2
DHCP client bound to address 10.0.0.117 (254 ms)
Using neta@30000 device
TFTP from server 10.0.0.1; our IP address is 10.0.0.117
Filename 'mox/armada-3720-turris-mox.dtb'.
Load address: 0x4f00000
Loading: ####
         1.5 MiB/s
done
Bytes transferred = 19479 (4c17 hex)
Using neta@30000 device
TFTP from server 10.0.0.1; our IP address is 10.0.0.117
Filename 'mox/Image'.
Load address: 0x5000000
Loading: #################################################################
         ##########################################
         6 MiB/s
done
Bytes transferred = 54069760 (3390a00 hex)
## Flattened Device Tree blob at 04f00000
   Booting using the fdt blob at 0x4f00000
   Loading Device Tree to 000000003bf16000, end 000000003bf1dc16 ... OK
ERROR: board-specific fdt fixup failed: FDT_ERR_NOTFOUND
 - must RESET the board to recover.

FDT creation failed! hanging...### ERROR ### Please RESET the board ###
Marek Behún Oct. 19, 2023, 3:26 p.m. UTC | #4
On Thu, 19 Oct 2023 17:49:35 +0300
Vladimir Oltean <olteanv@gmail.com> wrote:

> On Thu, Oct 19, 2023 at 05:40:22PM +0300, Vladimir Oltean wrote:
> > +Marek
> > 
> > On Wed, Oct 18, 2023 at 11:03:44AM +0200, Linus Walleij wrote:  
> > > Fix some errors in the Marvell MV88E6xxx switch descriptions:
> > > - The top node had no address size or cells.
> > > - switch0@0 is not OK, should be switch@0.
> > > 
> > > Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> > > ---
> > > diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > > index 9eab2bb22134..c69cb4e191e5 100644
> > > --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > > +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > > @@ -305,7 +305,7 @@ phy1: ethernet-phy@1 {
> > >  	};
> > >  
> > >  	/* switch nodes are enabled by U-Boot if modules are present */
> > > -	switch0@10 {
> > > +	switch@10 {  
> > 
> > As the comment says: U-Boot
> > (https://elixir.bootlin.com/u-boot/latest/source/board/CZ.NIC/turris_mox/turris_mox.c#L728)
> > sets up status = "okay" for these nodes depending on the MOXTET
> > configuration. It doesn't look as if it's doing that by alias, just by
> > path ("%s/switch%i@%x").
> > 
> > I have a Turris MOX, please allow me some time to test if the node name
> > change is going to be significant and cause regressions. I expect the
> > answer to be yes (sadly).  
> 
> Yeah, it's bad.
> 
> U-Boot 2018.11 (Dec 16 2018 - 12:50:19 +0000), Build: jenkins-turris-os-packages-kittens-mox-90
> 
> DRAM:  1 GiB
> Enabling Armada 3720 wComphy-0: SGMII1        3.125 Gbps
> Comphy-1: PEX0          5 Gbps
> Comphy-2: USB3_HOST0    5 Gbps
> MMC:   sdhci@d8000: 0
> Loading Environment from SPI Flash... SF: Detected w25q64dw with page size 256 Bytes, erase size 4 KiB, total 8 MiB
> OK
> Model: CZ.NIC Turris Mox Board
> Net:   eth0: neta@30000
> Turris Mox:
>   Board version: 22
>   RAM size: 1024 MiB
>   SD/eMMC version: SD
> Module Topology:
>    1: Peridot Switch Module (8-port)
>    2: Peridot Switch Module (8-port)
>    3: Peridot Switch Module (8-port)
>    4: SFP Module
> 
> Hit any key to stop autoboot:  0
> => run sd_tftp_boot  
> neta@30000 Waiting for PHY auto negotiation to complete....... done
> BOOTP broadcast 1
> BOOTP broadcast 2
> DHCP client bound to address 10.0.0.117 (254 ms)
> Using neta@30000 device
> TFTP from server 10.0.0.1; our IP address is 10.0.0.117
> Filename 'mox/armada-3720-turris-mox.dtb'.
> Load address: 0x4f00000
> Loading: ####
>          1.5 MiB/s
> done
> Bytes transferred = 19479 (4c17 hex)
> Using neta@30000 device
> TFTP from server 10.0.0.1; our IP address is 10.0.0.117
> Filename 'mox/Image'.
> Load address: 0x5000000
> Loading: #################################################################
>          ##########################################
>          6 MiB/s
> done
> Bytes transferred = 54069760 (3390a00 hex)
> ## Flattened Device Tree blob at 04f00000
>    Booting using the fdt blob at 0x4f00000
>    Loading Device Tree to 000000003bf16000, end 000000003bf1dc16 ... OK
> ERROR: board-specific fdt fixup failed: FDT_ERR_NOTFOUND
>  - must RESET the board to recover.
> 
> FDT creation failed! hanging...### ERROR ### Please RESET the board ###

Yes, unfortunately changing that node name will break booting.

Maybe we could add a comment into the DTS to describe this unfortunate
state of things? :)

Marek
Vladimir Oltean Oct. 19, 2023, 4:22 p.m. UTC | #5
On Thu, Oct 19, 2023 at 05:26:49PM +0200, Marek Behún wrote:
> Yes, unfortunately changing that node name will break booting.
> 
> Maybe we could add a comment into the DTS to describe this unfortunate
> state of things? :)

Well, the fact that Linus didn't notice means that there are insufficient
signals currently, so I guess a more explicit comment would help. Could
you prepare a patch?
Linus Walleij Oct. 20, 2023, 12:59 p.m. UTC | #6
On Thu, Oct 19, 2023 at 6:22 PM Vladimir Oltean <olteanv@gmail.com> wrote:
> On Thu, Oct 19, 2023 at 05:26:49PM +0200, Marek Behún wrote:
> > Yes, unfortunately changing that node name will break booting.
> >
> > Maybe we could add a comment into the DTS to describe this unfortunate
> > state of things? :)
>
> Well, the fact that Linus didn't notice means that there are insufficient
> signals currently, so I guess a more explicit comment would help. Could
> you prepare a patch?

I can just include a blurb in my patch so we don't get colliding
changes.

Yours,
Linus Walleij
Vladimir Oltean Oct. 25, 2023, 1:11 a.m. UTC | #7
On Fri, Oct 20, 2023 at 02:59:43PM +0200, Linus Walleij wrote:
> On Thu, Oct 19, 2023 at 6:22 PM Vladimir Oltean <olteanv@gmail.com> wrote:
> > On Thu, Oct 19, 2023 at 05:26:49PM +0200, Marek Behún wrote:
> > > Yes, unfortunately changing that node name will break booting.
> > >
> > > Maybe we could add a comment into the DTS to describe this unfortunate
> > > state of things? :)
> >
> > Well, the fact that Linus didn't notice means that there are insufficient
> > signals currently, so I guess a more explicit comment would help. Could
> > you prepare a patch?
> 
> I can just include a blurb in my patch so we don't get colliding
> changes.

Colliding with what, if you shouldn't change the node names?
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
index 5fc613d24151..b526efeee293 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
@@ -145,10 +145,8 @@  &usb2 {
 };
 
 &mdio {
-	switch0: switch0@1 {
+	switch0: switch@1 {
 		compatible = "marvell,mv88e6085";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		reg = <1>;
 
 		dsa,member = <0 0>;
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-gl-mv1000.dts b/arch/arm64/boot/dts/marvell/armada-3720-gl-mv1000.dts
index b1b45b4fa9d4..5de4417f929c 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-gl-mv1000.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-gl-mv1000.dts
@@ -152,10 +152,8 @@  &uart0 {
 };
 
 &mdio {
-	switch0: switch0@1 {
+	switch0: switch@1 {
 		compatible = "marvell,mv88e6085";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		reg = <1>;
 
 		dsa,member = <0 0>;
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index 9eab2bb22134..c69cb4e191e5 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -305,7 +305,7 @@  phy1: ethernet-phy@1 {
 	};
 
 	/* switch nodes are enabled by U-Boot if modules are present */
-	switch0@10 {
+	switch@10 {
 		compatible = "marvell,mv88e6190";
 		reg = <0x10>;
 		dsa,member = <0 0>;
@@ -430,7 +430,7 @@  port-sfp@a {
 		};
 	};
 
-	switch0@2 {
+	switch@2 {
 		compatible = "marvell,mv88e6085";
 		reg = <0x2>;
 		dsa,member = <0 0>;
@@ -497,7 +497,7 @@  port@5 {
 		};
 	};
 
-	switch1@11 {
+	switch@11 {
 		compatible = "marvell,mv88e6190";
 		reg = <0x11>;
 		dsa,member = <0 1>;
@@ -622,7 +622,7 @@  port-sfp@a {
 		};
 	};
 
-	switch1@2 {
+	switch@2 {
 		compatible = "marvell,mv88e6085";
 		reg = <0x2>;
 		dsa,member = <0 1>;
@@ -689,7 +689,7 @@  port@5 {
 		};
 	};
 
-	switch2@12 {
+	switch@12 {
 		compatible = "marvell,mv88e6190";
 		reg = <0x12>;
 		dsa,member = <0 2>;
@@ -805,7 +805,7 @@  port-sfp@a {
 		};
 	};
 
-	switch2@2 {
+	switch@2 {
 		compatible = "marvell,mv88e6085";
 		reg = <0x2>;
 		dsa,member = <0 2>;
diff --git a/arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts b/arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts
index 48202810bf78..3cc794fcf12e 100644
--- a/arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts
@@ -303,8 +303,6 @@  eth2phy: ethernet-phy@1 {
 	/* 88E6141 Topaz switch */
 	switch: switch@3 {
 		compatible = "marvell,mv88e6085";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		reg = <3>;
 
 		pinctrl-names = "default";
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
index 4125202028c8..7a25ea36b565 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
@@ -497,7 +497,7 @@  ge_phy: ethernet-phy@0 {
 		reset-deassert-us = <10000>;
 	};
 
-	switch0: switch0@4 {
+	switch0: switch@4 {
 		compatible = "marvell,mv88e6085";
 		reg = <4>;
 		pinctrl-names = "default";
diff --git a/arch/arm64/boot/dts/marvell/cn9130-crb.dtsi b/arch/arm64/boot/dts/marvell/cn9130-crb.dtsi
index 32cfb3e2efc3..110d4c9898bc 100644
--- a/arch/arm64/boot/dts/marvell/cn9130-crb.dtsi
+++ b/arch/arm64/boot/dts/marvell/cn9130-crb.dtsi
@@ -207,11 +207,9 @@  phy0: ethernet-phy@0 {
 		reg = <0>;
 	};
 
-	switch6: switch0@6 {
+	switch6: switch@6 {
 		/* Actual device is MV88E6393X */
 		compatible = "marvell,mv88e6190";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		reg = <6>;
 		interrupt-parent = <&cp0_gpio1>;
 		interrupts = <28 IRQ_TYPE_LEVEL_LOW>;