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Date: Fri, 15 Dec 2023 22:40:41 +0200
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Emil Renner Berthing <kernel@...il.dk>,
Samin Guo <samin.guo@...rfivetech.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Hal Feng <hal.feng@...rfivetech.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Richard Cochran <richardcochran@...il.com>,
Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: netdev@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org,
linux-clk@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org,
kernel@...labora.com
Subject: [PATCH v3 2/9] dt-bindings: net: starfive,jh7110-dwmac: Add JH7100 SoC compatible
The Synopsys DesignWare MAC found on StarFive JH7100 SoC is mostly
similar to the newer JH7110, but it requires only two interrupts and a
single reset line, which is 'ahb' instead of the commonly used
'stmmaceth'.
Since the common binding 'snps,dwmac' allows selecting 'ahb' only in
conjunction with 'stmmaceth', extend the logic to also permit exclusive
usage of the 'ahb' reset name. This ensures the following use cases are
supported:
JH7110: reset-names = "stmmaceth", "ahb";
JH7100: reset-names = "ahb";
other: reset-names = "stmmaceth";
Also note the need to use a different dwmac fallback, as v5.20 applies
to JH7110 only, while JH7100 relies on v3.7x.
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
.../devicetree/bindings/net/snps,dwmac.yaml | 3 +-
.../bindings/net/starfive,jh7110-dwmac.yaml | 74 +++++++++++++------
2 files changed, 55 insertions(+), 22 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 5c2769dc689a..c1380ff1c054 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -95,6 +95,7 @@ properties:
- snps,dwmac-5.20
- snps,dwxgmac
- snps,dwxgmac-2.10
+ - starfive,jh7100-dwmac
- starfive,jh7110-dwmac
reg:
@@ -146,7 +147,7 @@ properties:
reset-names:
minItems: 1
items:
- - const: stmmaceth
+ - enum: [stmmaceth, ahb]
- const: ahb
power-domains:
diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
index d90cb82c1424..b01602738fc3 100644
--- a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
@@ -22,10 +22,14 @@ select:
properties:
compatible:
- items:
- - enum:
- - starfive,jh7110-dwmac
- - const: snps,dwmac-5.20
+ oneOf:
+ - items:
+ - const: starfive,jh7100-dwmac
+ - const: snps,dwmac
+ - items:
+ - enum:
+ - starfive,jh7110-dwmac
+ - const: snps,dwmac-5.20
reg:
maxItems: 1
@@ -46,23 +50,6 @@ properties:
- const: tx
- const: gtx
- interrupts:
- minItems: 3
- maxItems: 3
-
- interrupt-names:
- minItems: 3
- maxItems: 3
-
- resets:
- minItems: 2
- maxItems: 2
-
- reset-names:
- items:
- - const: stmmaceth
- - const: ahb
-
starfive,tx-use-rgmii-clk:
description:
Tx clock is provided by external rgmii clock.
@@ -93,6 +80,51 @@ required:
allOf:
- $ref: snps,dwmac.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: starfive,jh7100-dwmac
+ then:
+ properties:
+ interrupts:
+ minItems: 2
+ maxItems: 2
+
+ interrupt-names:
+ minItems: 2
+ maxItems: 2
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: ahb
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: starfive,jh7110-dwmac
+ then:
+ properties:
+ interrupts:
+ minItems: 3
+ maxItems: 3
+
+ interrupt-names:
+ minItems: 3
+ maxItems: 3
+
+ resets:
+ minItems: 2
+ maxItems: 2
+
+ reset-names:
+ items:
+ - const: stmmaceth
+ - const: ahb
+
unevaluatedProperties: false
examples:
--
2.43.0
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