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@@ -4,8 +4,7 @@ Texas Instruments ICSSG PRUSS Ethernet
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Required properties:
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- compatible : Should be "ti,am654-icssg-prueth" for AM65x Family SoCs
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Should be "ti,am654-dualicssg-prueth" for AM65x Family
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- SoCs when ICSSG0 and ICSSG1 are paired. See more details
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- below on pairing of ICSSGs.
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+ SoCs when ICSSG0 and ICSSG1 are paired.
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- prus : list of pHandles to the PRU and RTU nodes
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- firmware-name : should contain the name of the firmware image
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file located in the firmware search path
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@@ -17,31 +16,11 @@ Required properties:
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"tx1-0", "tx1-1", "tx1-2", "tx1-3",
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"rx0", "rx1", "rxmgm0", "rxmgm1"
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- mii-g-rt : phandle to MII_G_RT module's syscon regmap.
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-
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+- mii-g-rt-paired : phandle to paired ICSSG's MII_G_RT module's syscon
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+ regmap.
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- mii-rt : phandle to MII_RT module's syscon regmap.
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-
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-Below DT properties are used when an interposer card is connected between the
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-IDK application board and AM65x base board. In this configuration, ICSSG0 and
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-ICSSG1 are paired or combined to provide a pair of Ethernet interfaces
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-corresponding to the Eth0 and Eth1 ports of the IDK application board.
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-compatible will be set to "ti,am654-dualicssg-prueth" when this configuration
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-is used. Eth2 and Eth3 ports are not used in this configuration. Following
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-are the ICSSG Slice (A pair of PRU/RTU cores) allocation for Eth0 and Eth1
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-ports. Each ICSSG has two slices, each handling one direction of the Ethernet
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-interface.
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-
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- Rx |------------------------------------| Tx
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- Eth0 --------->|---ICSSG0/Slice-0 ICSSG1/Slice-1-|----> Eth0
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- Eth1 --------->|---ICSSG1/Slice-0 ICSSG0/Slice-1-|----> Eth1
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- Rx |------------------------------------- Tx
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-
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-Eth0/Eth1/Eth2/Eth3 are the legends marked on the IDK application board near
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-the RJ45 connectors.
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-
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-- mii-rt-paired : phandle to ICSSG1 MII_RT module's syscon
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- regmap. mii-rt points to that of ICSSG0.
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-- mii-g-rt-paired : phandle to ICSSG1 MII_G_RT module's syscon
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- regmap. mii-g-rt points to that of ICSSG1.
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+- mii-rt-paired : phandle to paired ICSSG's MII_RT module's syscon
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+ regmap.
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Must contain children, one for each of the MAC ports.
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Children must be named ethernet-mii0 and ethernet-mii1.
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@@ -62,10 +41,11 @@ Required properties for children:
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Optional properties for children:
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- local-mac-address : mac address for the port.
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-Example (k3-am654 base board, dual-emac on ICSSG2):
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-===================================================
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+Example (k3-am654 base board, dual-emac):
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+========================================
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- pruss2_eth {
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+ /* Dual Ethernet application node on PRU-ICSSG2 */
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+ pruss2_eth: pruss2_eth {
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compatible = "ti,am654-icssg-prueth";
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pinctrl-names = "default";
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pinctrl-0 = <&icssg2_rgmii_pins_default>;
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@@ -78,21 +58,20 @@ Example (k3-am654 base board, dual-emac on ICSSG2):
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"ti-pruss/am65x-pru1-prueth-fw.elf",
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"ti-pruss/am65x-rtu1-prueth-fw.elf";
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mii-g-rt = <&icssg2_mii_g_rt>;
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- mii-rt = <&icssg2_mii_rt>;
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dma-coherent;
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- dmas = <&main_udmap &icssg2 0 UDMA_DIR_TX>, /* egress slice 0 */
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- <&main_udmap &icssg2 1 UDMA_DIR_TX>, /* egress slice 0 */
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- <&main_udmap &icssg2 2 UDMA_DIR_TX>, /* egress slice 0 */
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- <&main_udmap &icssg2 3 UDMA_DIR_TX>, /* egress slice 0 */
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- <&main_udmap &icssg2 4 UDMA_DIR_TX>, /* egress slice 1 */
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- <&main_udmap &icssg2 5 UDMA_DIR_TX>, /* egress slice 1 */
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- <&main_udmap &icssg2 6 UDMA_DIR_TX>, /* egress slice 1 */
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- <&main_udmap &icssg2 7 UDMA_DIR_TX>, /* egress slice 1 */
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-
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- <&main_udmap &icssg2 0 UDMA_DIR_RX>, /* ingress slice 0 */
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- <&main_udmap &icssg2 1 UDMA_DIR_RX>, /* ingress slice 1 */
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- <&main_udmap &icssg2 2 UDMA_DIR_RX>, /* mgmnt rsp slice 0 */
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- <&main_udmap &icssg2 3 UDMA_DIR_RX>; /* mgmnt rsp slice 1 */
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+ dmas = <&main_udmap &pruss2_eth 0 UDMA_DIR_TX>, /* egress slice 0 */
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+ <&main_udmap &pruss2_eth 1 UDMA_DIR_TX>, /* egress slice 0 */
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+ <&main_udmap &pruss2_eth 2 UDMA_DIR_TX>, /* egress slice 0 */
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+ <&main_udmap &pruss2_eth 3 UDMA_DIR_TX>, /* egress slice 0 */
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+ <&main_udmap &pruss2_eth 4 UDMA_DIR_TX>, /* egress slice 1 */
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+ <&main_udmap &pruss2_eth 5 UDMA_DIR_TX>, /* egress slice 1 */
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+ <&main_udmap &pruss2_eth 6 UDMA_DIR_TX>, /* egress slice 1 */
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+ <&main_udmap &pruss2_eth 7 UDMA_DIR_TX>, /* egress slice 1 */
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+
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+ <&main_udmap &pruss2_eth 0 UDMA_DIR_RX>, /* ingress slice 0 */
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+ <&main_udmap &pruss2_eth 1 UDMA_DIR_RX>, /* ingress slice 1 */
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+ <&main_udmap &pruss2_eth 2 UDMA_DIR_RX>, /* mgmnt rsp slice 0 */
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+ <&main_udmap &pruss2_eth 3 UDMA_DIR_RX>; /* mgmnt rsp slice 1 */
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dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3",
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"tx1-0", "tx1-1", "tx1-2", "tx1-3",
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"rx0", "rx1",
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@@ -116,67 +95,3 @@ Example (k3-am654 base board, dual-emac on ICSSG2):
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local-mac-address = [00 00 00 00 00 00];
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};
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};
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-
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-Example (k3-am654 IDK board, dual-emac with interposer card):
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-=============================================================
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-
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- pruss0_eth {
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- compatible = "ti,am654-dualicssg-prueth";
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- pinctrl-names = "default";
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- pinctrl-0 = <&icssg01_rgmii_pins_default>;
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- sram = <&msmc_ram>;
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- interrupt-parent = <&main_udmass_inta>;
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-
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- /* port-1, rx pru/rtu followed by port-2 tx pru/rtu, then port-1 rx and so forth */
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- prus = <&pru0_0>, <&rtu0_0>, <&pru0_1>, <&rtu0_1>, <&pru1_0>, <&rtu1_0>, <&pru1_1>, <&rtu1_1>;
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- firmware-name = "ti-pruss/am65x-pru0-prueth-fw.elf",
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- "ti-pruss/am65x-rtu0-prueth-fw.elf",
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- "ti-pruss/am65x-pru1-prueth-fw.elf",
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- "ti-pruss/am65x-rtu1-prueth-fw.elf",
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- "ti-pruss/am65x-pru0-prueth-fw.elf",
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- "ti-pruss/am65x-rtu0-prueth-fw.elf",
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- "ti-pruss/am65x-pru1-prueth-fw.elf",
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- "ti-pruss/am65x-rtu1-prueth-fw.elf";
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- mii-g-rt = <&icssg0_mii_g_rt>;
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- mii-g-rt-paired = <&icssg1_mii_g_rt>;
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- mii-rt = <&icssg0_mii_rt>;
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- mii-rt-paired = <&icssg1_mii_rt>;
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-
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- dma-coherent;
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- dmas = <&main_udmap &icssg0 4 UDMA_DIR_TX>, /* egress icssg0 slice 1 */
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- <&main_udmap &icssg0 5 UDMA_DIR_TX>, /* egress icssg0 slice 1 */
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- <&main_udmap &icssg0 6 UDMA_DIR_TX>, /* egress icssg0 slice 1 */
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- <&main_udmap &icssg0 7 UDMA_DIR_TX>, /* mgmnt cmd icssg0 slice 1 */
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-
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- <&main_udmap &icssg0 0 UDMA_DIR_RX>, /* ingress icssg0 slice 0 */
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- <&main_udmap &icssg0 2 UDMA_DIR_RX>, /* ingress mgmnt rsp icssg0 slice 0 */
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-
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- <&main_udmap &icssg1 4 UDMA_DIR_TX>, /* egress icssg1 slice 1 */
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- <&main_udmap &icssg1 5 UDMA_DIR_TX>, /* egress icssg1 slice 1 */
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- <&main_udmap &icssg1 6 UDMA_DIR_TX>, /* egress icssg1 slice 1 */
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- <&main_udmap &icssg1 7 UDMA_DIR_TX>, /* mgmnt cmd icssg1 slice 1 */
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-
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- <&main_udmap &icssg1 0 UDMA_DIR_RX>, /* ingress icssg1 slice 0 */
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- <&main_udmap &icssg1 2 UDMA_DIR_RX>; /* mgmnt rsp icssg1 slice 0 */
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-
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- dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3",
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- "rx0", "rxmgm0",
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- "tx1-0", "tx1-1", "tx1-2", "tx1-3",
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- "rx1", "rxmgm1";
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-
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- pruss0_emac0: ethernet-mii0 {
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- phy-handle = <&pruss0_eth0_phy>;
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- phy-mode = "rgmii-id";
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- syscon-rgmii-delay = <&scm_conf 0x4114>;
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- /* Filled in by bootloader */
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- local-mac-address = [00 00 00 00 00 00];
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- };
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-
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- pruss0_emac1: ethernet-mii1 {
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- phy-handle = <&pruss0_eth1_phy>;
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- phy-mode = "rgmii-id";
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- syscon-rgmii-delay = <&scm_conf 0x4104>;
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- /* Filled in by bootloader */
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- local-mac-address = [00 00 00 00 00 00];
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- };
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- };
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Murali Karicheri