2024-04-26 13:00:12

by Christophe Roullier

[permalink] [raw]
Subject: [PATCH v2 01/11] dt-bindings: net: add STM32MP13 compatible in documentation for stm32

New STM32 SOC have 2 GMACs instances.
GMAC IP version is SNPS 4.20.

Signed-off-by: Christophe Roullier <[email protected]>
---
.../devicetree/bindings/net/stm32-dwmac.yaml | 76 ++++++++++++++++---
1 file changed, 67 insertions(+), 9 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.yaml b/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
index f2714b5b6cf4..b901a432dfa9 100644
--- a/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
@@ -22,18 +22,17 @@ select:
enum:
- st,stm32-dwmac
- st,stm32mp1-dwmac
+ - st,stm32mp13-dwmac
required:
- compatible

-allOf:
- - $ref: snps,dwmac.yaml#
-
properties:
compatible:
oneOf:
- items:
- enum:
- st,stm32mp1-dwmac
+ - st,stm32mp13-dwmac
- const: snps,dwmac-4.20a
- items:
- enum:
@@ -74,13 +73,16 @@ properties:

st,syscon:
$ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Should be phandle/offset pair. The phandle to the syscon node which
+ encompases the glue register, the offset of the control register and
+ the mask to set bitfield in control register
items:
- - items:
+ - minItems: 2
+ items:
- description: phandle to the syscon node which encompases the glue register
- description: offset of the control register
- description:
- Should be phandle/offset pair. The phandle to the syscon node which
- encompases the glue register, and the offset of the control register
+ - description: field to set mask in register

st,eth-clk-sel:
description:
@@ -105,12 +107,38 @@ required:

unevaluatedProperties: false

+allOf:
+ - $ref: snps,dwmac.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32mp1-dwmac
+ - st,stm32-dwmac
+ then:
+ properties:
+ st,syscon:
+ items:
+ maxItems: 2
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32mp13-dwmac
+ then:
+ properties:
+ st,syscon:
+ items:
+ minItems: 3
+ maxItems: 3
+
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/stm32mp1-clks.h>
- #include <dt-bindings/reset/stm32mp1-resets.h>
- #include <dt-bindings/mfd/stm32h7-rcc.h>
//Example 1
ethernet0: ethernet@5800a000 {
compatible = "st,stm32mp1-dwmac", "snps,dwmac-4.20a";
@@ -165,3 +193,33 @@ examples:
snps,pbl = <8>;
phy-mode = "mii";
};
+
+ - |
+ //Example 4
+ ethernet3: ethernet@5800a000 {
+ compatible = "st,stm32mp13-dwmac", "snps,dwmac-4.20a";
+ reg = <0x5800a000 0x2000>;
+ reg-names = "stmmaceth";
+ interrupts-extended = <&intc GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
+ <&exti 68 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq",
+ "eth_wake_irq";
+ clock-names = "stmmaceth",
+ "mac-clk-tx",
+ "mac-clk-rx",
+ "eth-ck",
+ "ptp_ref",
+ "ethstp";
+ clocks = <&rcc ETHMAC>,
+ <&rcc ETHTX>,
+ <&rcc ETHRX>,
+ <&rcc ETHCK_K>,
+ <&rcc ETHPTP_K>,
+ <&rcc ETHSTP>;
+ st,syscon = <&syscfg 0x4 0xff0000>;
+ snps,mixed-burst;
+ snps,pbl = <2>;
+ snps,axi-config = <&stmmac_axi_config_1>;
+ snps,tso;
+ phy-mode = "rmii";
+ };
--
2.25.1



2024-04-26 16:01:14

by Marek Vasut

[permalink] [raw]
Subject: Re: [PATCH v2 01/11] dt-bindings: net: add STM32MP13 compatible in documentation for stm32

On 4/26/24 2:56 PM, Christophe Roullier wrote:
> New STM32 SOC

Which New STM32 SoC is that ? Please add type/model/...

> have 2 GMACs instances.
> GMAC IP version is SNPS 4.20.

The commit message should describe what does this patch do, and why does
it do so, something like:

"
Document support for STM32MP13xx. This SoC contains two instances of
DWMAC 4.20 IP. Because this is <somehow special>, document <some
difference>.
"

[...]

2024-04-26 19:19:28

by Rob Herring

[permalink] [raw]
Subject: Re: [PATCH v2 01/11] dt-bindings: net: add STM32MP13 compatible in documentation for stm32

On Fri, Apr 26, 2024 at 02:56:57PM +0200, Christophe Roullier wrote:
> New STM32 SOC have 2 GMACs instances.
> GMAC IP version is SNPS 4.20.
>
> Signed-off-by: Christophe Roullier <[email protected]>
> ---
> .../devicetree/bindings/net/stm32-dwmac.yaml | 76 ++++++++++++++++---
> 1 file changed, 67 insertions(+), 9 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.yaml b/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
> index f2714b5b6cf4..b901a432dfa9 100644
> --- a/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
> @@ -22,18 +22,17 @@ select:
> enum:
> - st,stm32-dwmac
> - st,stm32mp1-dwmac
> + - st,stm32mp13-dwmac
> required:
> - compatible
>
> -allOf:
> - - $ref: snps,dwmac.yaml#
> -
> properties:
> compatible:
> oneOf:
> - items:
> - enum:
> - st,stm32mp1-dwmac
> + - st,stm32mp13-dwmac
> - const: snps,dwmac-4.20a
> - items:
> - enum:
> @@ -74,13 +73,16 @@ properties:
>
> st,syscon:
> $ref: /schemas/types.yaml#/definitions/phandle-array
> + description:

Why do you move the location of 'description'? It just increases the
diff. My preference is description is either 1st or last and not in the
middle.

> + Should be phandle/offset pair. The phandle to the syscon node which
> + encompases the glue register, the offset of the control register and
> + the mask to set bitfield in control register
> items:
> - - items:
> + - minItems: 2
> + items:
> - description: phandle to the syscon node which encompases the glue register
> - description: offset of the control register
> - description:
> - Should be phandle/offset pair. The phandle to the syscon node which
> - encompases the glue register, and the offset of the control register
> + - description: field to set mask in register
>
> st,eth-clk-sel:
> description:
> @@ -105,12 +107,38 @@ required:
>
> unevaluatedProperties: false
>
> +allOf:
> + - $ref: snps,dwmac.yaml#
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - st,stm32mp1-dwmac
> + - st,stm32-dwmac
> + then:
> + properties:
> + st,syscon:
> + items:
> + maxItems: 2
> +
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - st,stm32mp13-dwmac
> + then:
> + properties:
> + st,syscon:
> + items:
> + minItems: 3
> + maxItems: 3

Just minItems is needed.

> +
> examples:
> - |
> #include <dt-bindings/interrupt-controller/arm-gic.h>
> #include <dt-bindings/clock/stm32mp1-clks.h>
> - #include <dt-bindings/reset/stm32mp1-resets.h>
> - #include <dt-bindings/mfd/stm32h7-rcc.h>
> //Example 1
> ethernet0: ethernet@5800a000 {
> compatible = "st,stm32mp1-dwmac", "snps,dwmac-4.20a";
> @@ -165,3 +193,33 @@ examples:
> snps,pbl = <8>;
> phy-mode = "mii";
> };
> +
> + - |
> + //Example 4

I don't think it is worth a whole new example just for 1 property
difference.

> + ethernet3: ethernet@5800a000 {
> + compatible = "st,stm32mp13-dwmac", "snps,dwmac-4.20a";
> + reg = <0x5800a000 0x2000>;
> + reg-names = "stmmaceth";
> + interrupts-extended = <&intc GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
> + <&exti 68 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "macirq",
> + "eth_wake_irq";
> + clock-names = "stmmaceth",
> + "mac-clk-tx",
> + "mac-clk-rx",
> + "eth-ck",
> + "ptp_ref",
> + "ethstp";
> + clocks = <&rcc ETHMAC>,
> + <&rcc ETHTX>,
> + <&rcc ETHRX>,
> + <&rcc ETHCK_K>,
> + <&rcc ETHPTP_K>,
> + <&rcc ETHSTP>;
> + st,syscon = <&syscfg 0x4 0xff0000>;
> + snps,mixed-burst;
> + snps,pbl = <2>;
> + snps,axi-config = <&stmmac_axi_config_1>;
> + snps,tso;
> + phy-mode = "rmii";
> + };
> --
> 2.25.1
>