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Message-ID: <20240624134235.202243-1-matthias.schiffer@ew.tq-group.com>
Date: Mon, 24 Jun 2024 15:42:35 +0200
From: Matthias Schiffer <matthias.schiffer@...tq-group.com>
To: Nishanth Menon <nm@...com>,
Vignesh Raghavendra <vigneshr@...com>,
Tero Kristo <kristo@...nel.org>
Cc: Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux@...tq-group.com,
Matthias Schiffer <matthias.schiffer@...tq-group.com>
Subject: [PATCH v2] arm64: dts: ti: k3-am642-tqma64xxl-mbax4xxl: add PRU Ethernet support
Add PRU Ethernet controller and PHY nodes, as it was previously done for
the AM64x EVM Device Trees.
Signed-off-by: Matthias Schiffer <matthias.schiffer@...tq-group.com>
---
v2:
- Dropped binding change patch
- Moved prueth device node to DTS toplevel, matching the AM64x EVM
- Update firmware filenames to match EVM
.../dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts | 98 +++++++++++++++++++
1 file changed, 98 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts
index 1f4dc5ad1696a..204f5e48a9c63 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts
@@ -24,6 +24,8 @@ / {
aliases {
ethernet0 = &cpsw_port1;
+ ethernet1 = &icssg1_emac0;
+ ethernet2 = &icssg1_emac1;
i2c1 = &mcu_i2c0;
mmc1 = &sdhci1;
serial0 = &mcu_uart0;
@@ -71,6 +73,66 @@ led-1 {
};
};
+ icssg1_eth: icssg1-eth {
+ compatible = "ti,am642-icssg-prueth";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pru_icssg1_rgmii1_pins>, <&pru_icssg1_rgmii2_pins>;
+ interrupt-parent = <&icssg1_intc>;
+ interrupts = <24 0 2>, <25 1 3>;
+ interrupt-names = "tx_ts0", "tx_ts1";
+ dmas = <&main_pktdma 0xc200 15>, /* egress slice 0 */
+ <&main_pktdma 0xc201 15>, /* egress slice 0 */
+ <&main_pktdma 0xc202 15>, /* egress slice 0 */
+ <&main_pktdma 0xc203 15>, /* egress slice 0 */
+ <&main_pktdma 0xc204 15>, /* egress slice 1 */
+ <&main_pktdma 0xc205 15>, /* egress slice 1 */
+ <&main_pktdma 0xc206 15>, /* egress slice 1 */
+ <&main_pktdma 0xc207 15>, /* egress slice 1 */
+ <&main_pktdma 0x4200 15>, /* ingress slice 0 */
+ <&main_pktdma 0x4201 15>; /* ingress slice 1 */
+ dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3",
+ "tx1-0", "tx1-1", "tx1-2", "tx1-3",
+ "rx0", "rx1";
+ sram = <&oc_sram>;
+ firmware-name = "ti-pruss/am64x-sr2-pru0-prueth-fw.elf",
+ "ti-pruss/am64x-sr2-rtu0-prueth-fw.elf",
+ "ti-pruss/am64x-sr2-txpru0-prueth-fw.elf",
+ "ti-pruss/am64x-sr2-pru1-prueth-fw.elf",
+ "ti-pruss/am64x-sr2-rtu1-prueth-fw.elf",
+ "ti-pruss/am64x-sr2-txpru1-prueth-fw.elf";
+ ti,prus = <&pru1_0>, <&rtu1_0>, <&tx_pru1_0>, <&pru1_1>, <&rtu1_1>, <&tx_pru1_1>;
+ ti,pruss-gp-mux-sel = <2>, /* MII mode */
+ <2>,
+ <2>,
+ <2>, /* MII mode */
+ <2>,
+ <2>;
+ ti,mii-g-rt = <&icssg1_mii_g_rt>;
+ ti,mii-rt = <&icssg1_mii_rt>;
+ ti,iep = <&icssg1_iep0>, <&icssg1_iep1>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ icssg1_emac0: port@0 {
+ reg = <0>;
+ phy-handle = <&icssg1_phy0c>;
+ phy-mode = "rgmii-id";
+ /* Filled in by bootloader */
+ local-mac-address = [00 00 00 00 00 00];
+ };
+
+ icssg1_emac1: port@1 {
+ reg = <1>;
+ phy-handle = <&icssg1_phy03>;
+ phy-mode = "rgmii-id";
+ /* Filled in by bootloader */
+ local-mac-address = [00 00 00 00 00 00];
+ };
+ };
+ };
+
fan0: pwm-fan {
compatible = "pwm-fan";
pinctrl-names = "default";
@@ -154,6 +216,42 @@ &epwm5 {
status = "okay";
};
+&icssg1_mdio {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pru_icssg1_mdio_pins>;
+ status = "okay";
+
+ /* phy-mode is fixed up to rgmii-rxid by prueth driver to account for
+ * the SoC integration, so the only rx-internal-delay and no
+ * tx-internal-delay is set for the PHYs.
+ */
+
+ icssg1_phy03: ethernet-phy@3 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0x3>;
+ reset-gpios = <&main_gpio1 47 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <1000>;
+ reset-deassert-us = <1000>;
+ ti,rx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ ti,tx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+ ti,clk-output-sel = <DP83867_CLK_O_SEL_OFF>;
+ };
+
+ icssg1_phy0c: ethernet-phy@c {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0xc>;
+ reset-gpios = <&main_gpio1 51 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <1000>;
+ reset-deassert-us = <1000>;
+ ti,rx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ ti,tx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+ ti,clk-output-sel = <DP83867_CLK_O_SEL_OFF>;
+ };
+};
+
+
&main_gpio0 {
pinctrl-names = "default";
pinctrl-0 = <&main_gpio0_digital_pins>,
--
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