diff options
Diffstat (limited to 'Documentation/devicetree/bindings/net/stmmac.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/net/stmmac.txt | 90 |
1 files changed, 81 insertions, 9 deletions
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt index d3bfc2b30fb5..c3a7be6615c5 100644 --- a/Documentation/devicetree/bindings/net/stmmac.txt +++ b/Documentation/devicetree/bindings/net/stmmac.txt @@ -7,9 +7,12 @@ Required properties: - interrupt-parent: Should be the phandle for the interrupt controller that services interrupts for this device - interrupts: Should contain the STMMAC interrupts -- interrupt-names: Should contain the interrupt names "macirq" - "eth_wake_irq" if this interrupt is supported in the "interrupts" - property +- interrupt-names: Should contain a list of interrupt names corresponding to + the interrupts in the interrupts property, if available. + Valid interrupt names are: + - "macirq" (combined signal for various interrupt events) + - "eth_wake_irq" (the interrupt to manage the remote wake-up packet detection) + - "eth_lpi" (the interrupt that occurs when Tx or Rx enters/exits LPI state) - phy-mode: See ethernet.txt file in the same directory. - snps,reset-gpio gpio number for phy reset. - snps,reset-active-low boolean flag to indicate if phy reset is active low. @@ -28,9 +31,9 @@ Optional properties: clocks may be specified in derived bindings. - clock-names: One name for each entry in the clocks property, the first one should be "stmmaceth" and the second one should be "pclk". -- clk_ptp_ref: this is the PTP reference clock; in case of the PTP is - available this clock is used for programming the Timestamp Addend Register. - If not passed then the system clock will be used and this is fine on some +- ptp_ref: this is the PTP reference clock; in case of the PTP is available + this clock is used for programming the Timestamp Addend Register. If not + passed then the system clock will be used and this is fine on some platforms. - tx-fifo-depth: See ethernet.txt file in the same directory - rx-fifo-depth: See ethernet.txt file in the same directory @@ -72,7 +75,45 @@ Optional properties: - snps,mb: mixed-burst - snps,rb: rebuild INCRx Burst - mdio: with compatible = "snps,dwmac-mdio", create and register mdio bus. - +- Multiple RX Queues parameters: below the list of all the parameters to + configure the multiple RX queues: + - snps,rx-queues-to-use: number of RX queues to be used in the driver + - Choose one of these RX scheduling algorithms: + - snps,rx-sched-sp: Strict priority + - snps,rx-sched-wsp: Weighted Strict priority + - For each RX queue + - Choose one of these modes: + - snps,dcb-algorithm: Queue to be enabled as DCB + - snps,avb-algorithm: Queue to be enabled as AVB + - snps,map-to-dma-channel: Channel to map + - Specifiy specific packet routing: + - snps,route-avcp: AV Untagged Control packets + - snps,route-ptp: PTP Packets + - snps,route-dcbcp: DCB Control Packets + - snps,route-up: Untagged Packets + - snps,route-multi-broad: Multicast & Broadcast Packets + - snps,priority: RX queue priority (Range: 0x0 to 0xF) +- Multiple TX Queues parameters: below the list of all the parameters to + configure the multiple TX queues: + - snps,tx-queues-to-use: number of TX queues to be used in the driver + - Choose one of these TX scheduling algorithms: + - snps,tx-sched-wrr: Weighted Round Robin + - snps,tx-sched-wfq: Weighted Fair Queuing + - snps,tx-sched-dwrr: Deficit Weighted Round Robin + - snps,tx-sched-sp: Strict priority + - For each TX queue + - snps,weight: TX queue weight (if using a DCB weight algorithm) + - Choose one of these modes: + - snps,dcb-algorithm: TX queue will be working in DCB + - snps,avb-algorithm: TX queue will be working in AVB + [Attention] Queue 0 is reserved for legacy traffic + and so no AVB is available in this queue. + - Configure Credit Base Shaper (if AVB Mode selected): + - snps,send_slope: enable Low Power Interface + - snps,idle_slope: unlock on WoL + - snps,high_credit: max write outstanding req. limit + - snps,low_credit: max read outstanding req. limit + - snps,priority: TX queue priority (Range: 0x0 to 0xF) Examples: stmmac_axi_setup: stmmac-axi-config { @@ -81,12 +122,41 @@ Examples: snps,blen = <256 128 64 32 0 0 0>; }; + mtl_rx_setup: rx-queues-config { + snps,rx-queues-to-use = <1>; + snps,rx-sched-sp; + queue0 { + snps,dcb-algorithm; + snps,map-to-dma-channel = <0x0>; + snps,priority = <0x0>; + }; + }; + + mtl_tx_setup: tx-queues-config { + snps,tx-queues-to-use = <2>; + snps,tx-sched-wrr; + queue0 { + snps,weight = <0x10>; + snps,dcb-algorithm; + snps,priority = <0x0>; + }; + + queue1 { + snps,avb-algorithm; + snps,send_slope = <0x1000>; + snps,idle_slope = <0x1000>; + snps,high_credit = <0x3E800>; + snps,low_credit = <0xFFC18000>; + snps,priority = <0x1>; + }; + }; + gmac0: ethernet@e0800000 { compatible = "st,spear600-gmac"; reg = <0xe0800000 0x8000>; interrupt-parent = <&vic1>; - interrupts = <24 23>; - interrupt-names = "macirq", "eth_wake_irq"; + interrupts = <24 23 22>; + interrupt-names = "macirq", "eth_wake_irq", "eth_lpi"; mac-address = [000000000000]; /* Filled in by U-Boot */ max-frame-size = <3800>; phy-mode = "gmii"; @@ -104,4 +174,6 @@ Examples: phy1: ethernet-phy@0 { }; }; + snps,mtl-rx-config = <&mtl_rx_setup>; + snps,mtl-tx-config = <&mtl_tx_setup>; }; |