From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: robh+dt@kernel.org, andrew@lunn.ch, f.fainelli@gmail.com,
linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org
Cc: jianxin.pan@amlogic.com, davem@davemloft.net,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Subject: [PATCH RFC v2 02/11] dt-bindings: net: dwmac-meson: Document the "timing-adjustment" clock
Date: Wed, 29 Apr 2020 22:16:35 +0200 [thread overview]
Message-ID: <20200429201644.1144546-3-martin.blumenstingl@googlemail.com> (raw)
In-Reply-To: <20200429201644.1144546-1-martin.blumenstingl@googlemail.com>
The PRG_ETHERNET registers can add an RX delay in RGMII mode. This
requires an internal re-timing circuit whose input clock is called
"timing adjustment clock". Document this clock input so the clock can be
enabled as needed.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
.../devicetree/bindings/net/amlogic,meson-dwmac.yaml | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
index 8d851f59d9f2..2bc0e8b0d25b 100644
--- a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
@@ -40,18 +40,22 @@ allOf:
then:
properties:
clocks:
+ minItems: 3
+ maxItems: 4
items:
- description: GMAC main clock
- description: First parent clock of the internal mux
- description: Second parent clock of the internal mux
+ - description: The clock which drives the timing adjustment logic
clock-names:
minItems: 3
- maxItems: 3
+ maxItems: 4
items:
- const: stmmaceth
- const: clkin0
- const: clkin1
+ - const: timing-adjustment
amlogic,tx-delay-ns:
$ref: /schemas/types.yaml#definitions/uint32
@@ -120,7 +124,7 @@ examples:
reg = <0xc9410000 0x10000>, <0xc8834540 0x8>;
interrupts = <8>;
interrupt-names = "macirq";
- clocks = <&clk_eth>, <&clkc_fclk_div2>, <&clk_mpll2>;
- clock-names = "stmmaceth", "clkin0", "clkin1";
+ clocks = <&clk_eth>, <&clk_fclk_div2>, <&clk_mpll2>, <&clk_fclk_div2>;
+ clock-names = "stmmaceth", "clkin0", "clkin1", "timing-adjustment";
phy-mode = "rgmii";
};
--
2.26.2
next prev parent reply other threads:[~2020-04-29 20:17 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-29 20:16 [PATCH RFC v2 00/11] dwmac-meson8b Ethernet RX delay configuration Martin Blumenstingl
2020-04-29 20:16 ` [PATCH RFC v2 01/11] dt-bindings: net: meson-dwmac: Add the amlogic,rx-delay-ns property Martin Blumenstingl
2020-05-01 15:26 ` Andrew Lunn
2020-05-12 14:51 ` Rob Herring
2020-04-29 20:16 ` Martin Blumenstingl [this message]
2020-05-01 15:27 ` [PATCH RFC v2 02/11] dt-bindings: net: dwmac-meson: Document the "timing-adjustment" clock Andrew Lunn
2020-05-01 21:09 ` Rob Herring
2020-05-01 21:53 ` Martin Blumenstingl
2020-05-10 22:34 ` Martin Blumenstingl
2020-04-29 20:16 ` [PATCH RFC v2 03/11] net: stmmac: dwmac-meson8b: use FIELD_PREP instead of open-coding it Martin Blumenstingl
2020-05-01 15:28 ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 04/11] net: stmmac: dwmac-meson8b: Move the documentation for the TX delay Martin Blumenstingl
2020-05-01 15:29 ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 05/11] net: stmmac: dwmac-meson8b: Add the PRG_ETH0_ADJ_* bits Martin Blumenstingl
2020-05-01 15:33 ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 06/11] net: stmmac: dwmac-meson8b: Fetch the "timing-adjustment" clock Martin Blumenstingl
2020-05-01 15:35 ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 07/11] net: stmmac: dwmac-meson8b: Make the clock enabling code re-usable Martin Blumenstingl
2020-05-01 15:37 ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 08/11] net: stmmac: dwmac-meson8b: add support for the RX delay configuration Martin Blumenstingl
2020-05-01 15:44 ` Andrew Lunn
2020-05-01 17:10 ` Martin Blumenstingl
2020-04-29 20:16 ` [PATCH DO NOT MERGE v2 09/11] arm64: dts: amlogic: Add the Ethernet "timing-adjustment" clock Martin Blumenstingl
2020-04-29 20:16 ` [PATCH DO NOT MERGE v2 10/11] ARM: dts: meson: " Martin Blumenstingl
2020-04-29 20:16 ` [PATCH DO NOT MERGE v2 11/11] ARM: dts: meson: Switch existing boards with RGMII PHY to "rgmii-id" Martin Blumenstingl
2020-04-29 21:29 ` [PATCH RFC v2 00/11] dwmac-meson8b Ethernet RX delay configuration Andrew Lunn
2020-05-01 14:49 ` Martin Blumenstingl
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