diff mbox series

[11/11] ARM: dts: am57xx: Add PRUSS MDIO controller nodes

Message ID 20210729224621.2295-12-s-anna@ti.com
State New
Headers show
Series Add PRU-ICSS nodes on AM335x, AM437x & AM57xx SoCs | expand

Commit Message

Suman Anna July 29, 2021, 10:46 p.m. UTC 
The PRUSSs on AM57xx SoCs contain an MDIO controller that can
be used to control external PHYs associated with the Industrial
Ethernet peripherals within each PRUSS. The MDIO module used
within the PRU-ICSS is an instance of the MDIO Controller used
in TI Davinci SoCs. The same bus frequency of 1 MHz is chosen as
the regular MDIO node.

The nodes are added in the common am57-pruss.dtsi file and enabled
by default, but are disabled in all the existing AM57xx board dts
files. These nodes need pinctrl lines, and so should be enabled
only on boards where they are actually wired and pinned out for
PRUSS Ethernet. Any new board dts file should disable these if
they are not sure.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 arch/arm/boot/dts/am57-pruss.dtsi             | 20 +++++++++++++++++++
 arch/arm/boot/dts/am571x-idk.dts              |  8 ++++++++
 arch/arm/boot/dts/am572x-idk.dts              |  8 ++++++++
 arch/arm/boot/dts/am574x-idk.dts              |  8 ++++++++
 .../boot/dts/am57xx-beagle-x15-common.dtsi    |  8 ++++++++
 arch/arm/boot/dts/am57xx-cl-som-am57x.dts     |  8 ++++++++
 6 files changed, 60 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/am57-pruss.dtsi b/arch/arm/boot/dts/am57-pruss.dtsi
index 494d56830b34..46c5383f0eee 100644
--- a/arch/arm/boot/dts/am57-pruss.dtsi
+++ b/arch/arm/boot/dts/am57-pruss.dtsi
@@ -102,6 +102,16 @@  pru1_1: pru@38000 {
 				reg-names = "iram", "control", "debug";
 				firmware-name = "am57xx-pru1_1-fw";
 			};
+
+			pruss1_mdio: mdio@32400 {
+				compatible = "ti,davinci_mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				clocks = <&dpll_gmac_h13x2_ck>;
+				clock-names = "fck";
+				bus_freq = <1000000>;
+				reg = <0x32400 0x90>;
+			};
 		};
 	};
 
@@ -201,6 +211,16 @@  pru2_1: pru@38000 {
 				reg-names = "iram", "control", "debug";
 				firmware-name = "am57xx-pru2_1-fw";
 			};
+
+			pruss2_mdio: mdio@32400 {
+				compatible = "ti,davinci_mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				clocks = <&dpll_gmac_h13x2_ck>;
+				clock-names = "fck";
+				bus_freq = <1000000>;
+				reg = <0x32400 0x90>;
+			};
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/am571x-idk.dts b/arch/arm/boot/dts/am571x-idk.dts
index e81078c2d00d..48425020281a 100644
--- a/arch/arm/boot/dts/am571x-idk.dts
+++ b/arch/arm/boot/dts/am571x-idk.dts
@@ -208,3 +208,11 @@  &mmc2 {
 	pinctrl-1 = <&mmc2_pins_hs>;
 	pinctrl-2 = <&mmc2_pins_ddr_rev20 &mmc2_iodelay_ddr_conf>;
 };
+
+&pruss1_mdio {
+	status = "disabled";
+};
+
+&pruss2_mdio {
+	status = "disabled";
+};
diff --git a/arch/arm/boot/dts/am572x-idk.dts b/arch/arm/boot/dts/am572x-idk.dts
index 6504265f3f7e..94a738cb0a4d 100644
--- a/arch/arm/boot/dts/am572x-idk.dts
+++ b/arch/arm/boot/dts/am572x-idk.dts
@@ -27,3 +27,11 @@  &mmc2 {
 	pinctrl-1 = <&mmc2_pins_hs>;
 	pinctrl-2 = <&mmc2_pins_ddr_rev20>;
 };
+
+&pruss1_mdio {
+	status = "disabled";
+};
+
+&pruss2_mdio {
+	status = "disabled";
+};
diff --git a/arch/arm/boot/dts/am574x-idk.dts b/arch/arm/boot/dts/am574x-idk.dts
index 1b8f3a28af05..c4bf9cb2c9dc 100644
--- a/arch/arm/boot/dts/am574x-idk.dts
+++ b/arch/arm/boot/dts/am574x-idk.dts
@@ -43,3 +43,11 @@  &m_can0 {
 &emif1 {
 	status = "okay";
 };
+
+&pruss1_mdio {
+	status = "disabled";
+};
+
+&pruss2_mdio {
+	status = "disabled";
+};
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
index 6b82ecf803c5..994e69ab38d7 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
@@ -637,3 +637,11 @@  &dsp2 {
 	status = "okay";
 	memory-region = <&dsp2_memory_region>;
 };
+
+&pruss1_mdio {
+	status = "disabled";
+};
+
+&pruss2_mdio {
+	status = "disabled";
+};
diff --git a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
index aed81568a297..2e94f32d9dfc 100644
--- a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
+++ b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
@@ -618,3 +618,11 @@  &gpio2_target {
 	status = "okay";
 	ti,no-reset-on-init;
 };
+
+&pruss1_mdio {
+	status = "disabled";
+};
+
+&pruss2_mdio {
+	status = "disabled";
+};