-From eacf1d2505dfecd3599d558cdade1a2da47fe06d Mon Sep 17 00:00:00 2001
+From bdce82e960d1205d118662f575cec39379984e34 Mon Sep 17 00:00:00 2001
From: Christian Marangi <ansuelsmth@gmail.com>
-Date: Wed, 24 Jan 2024 18:52:33 +0100
-Subject: [PATCH 2/3] net: mdio: ipq4019: add support for clock-frequency
- property
+Date: Wed, 31 Jan 2024 03:26:04 +0100
+Subject: [PATCH] net: mdio: ipq4019: add support for clock-frequency property
The IPQ4019 MDIO internally divide the clock feed by AHB based on the
MDIO_MODE reg. On reset or power up, the default value for the
their usage is not clear (RES 11:9 GENPHY 16:13 RES1 19:17)
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+Reviewed-by: Andrew Lunn <andrew@lunn.ch>
+Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/mdio/mdio-ipq4019.c | 109 ++++++++++++++++++++++++++++++--
1 file changed, 103 insertions(+), 6 deletions(-)
+
+ /* div is not set to the default value of /256
+ * Probably someone changed that (bootloader, other drivers)
-+ * Keep this and doesn't overwrite it.
++ * Keep this and don't overwrite it.
+ */
+ if (div != MDIO_MODE_DIV_256) {
+ priv->mdc_rate = DIV_ROUND_UP(ahb_rate, div + 1);
+++ /dev/null
-From 85e2038891989e41bc62f6a4625fd5865da8a1a2 Mon Sep 17 00:00:00 2001
-From: Christian Marangi <ansuelsmth@gmail.com>
-Date: Wed, 24 Jan 2024 19:17:02 +0100
-Subject: [PATCH 1/3] dt-bindings: net: ipq4019-mdio: document now supported
- clock-frequency
-
-Document support for clock-frequency and add details on why this
-property is needed and what values are supported.
-
-From internal documentation, while other values are supported, the
-correct function of the MDIO bus is not assured hence add only the
-suggested supported values to the property enum.
-
-Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
----
- .../bindings/net/qcom,ipq4019-mdio.yaml | 15 +++++++++++++++
- 1 file changed, 15 insertions(+)
-
---- a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml
-+++ b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml
-@@ -38,6 +38,21 @@ properties:
- MDIO clock source frequency fixed to 100MHZ, this clock should be specified
- by the platform IPQ807x, IPQ60xx and IPQ50xx.
-
-+ clock-frequency:
-+ description:
-+ The MDIO bus clock that must be output by the MDIO bus hardware, if
-+ absent, the default hardware values are used.
-+
-+ MDC rate is feed by an external clock (fixed 100MHz) and is divider
-+ internally. The default divider is /256 resulting in the default rate
-+ applied of 390KHz.
-+
-+ To follow 802.3 standard that instruct up to 2.5MHz by default, if
-+ this property is not declared and the divider is set to /256, by
-+ default 1.5625Mhz is select.
-+ enum: [ 390625, 781250, 1562500, 3125000, 6250000, 12500000 ]
-+ default: 1562500
-+
- required:
- - compatible
- - reg