PL扩展网口，内核启动时获取DMA资源错误

测试PL扩展网口，内核在启动过程中，挂载PL扩展网口时获取DMA资源错误，如下：
CAN device driver interface
libphy: MACB_mii_bus: probed
macb e000b000.ethernet eth0: Cadence GEM rev 0x00020118 at 0xe000b000 irq 26 (00:0a:35:00:01:22)
Marvell 88E1510 e000b000.ethernet-ffffffff:00: attached PHY driver [Marvell 88E1510] (mii_bus:phy_addr=e000b000.ethernet-ffffffff:00, irq=POLL)
e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
xilinx_axienet 41000000.ethernet: TX_CSUM 0
xilinx_axienet 41000000.ethernet: RX_CSUM 0
Getting DMA resource failed
xilinx_axienet: probe of 41000000.ethernet failed with error -22
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver

设备树如下：
amba_pl: amba_pl {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
ranges ;
axi_ethernet_0_dma: dma@40400000 {
#dma-cells = <1>;
axistream-connected = <&axi_ethernet_0>;
axistream-control-connected = <&axi_ethernet_0>;
clock-names = "s_axi_lite_aclk";
clocks = <&clkc 15>;
compatible = "xlnx,eth-dma";
interrupt-names = "mm2s_introut", "s2mm_introut";
interrupt-parent = <&intc>;
interrupts = <0 29 4 0 30 4>;
reg = <0x40400000 0x10000>;
xlnx,include-dre ;
};
axi_ethernet_0: ethernet@41000000 {
axistream-connected = <&axi_ethernet_0_dma>;
axistream-control-connected = <&axi_ethernet_0_dma>;
clock-frequency = <100000000>;
clock-names = "ref_clk";
clocks = <&clkc 0>;
compatible = "xlnx,axi-ethernet-1.00.a";
device_type = "network";
interrupt-names = "mac_irq", "interrupt";
interrupt-parent = <&intc>;
interrupts = <0 31 1 0 32 4>;
phy-mode = "rgmii";
reg = <0x41000000 0x40000>;
xlnx = <0x0>;
xlnx,has-mdio = <0x1>;
xlnx,axiliteclkrate = <0x0>;
xlnx,axisclkrate = <0x0>;
xlnx,clockselection = <0x0>;
xlnx,enableasyncsgmii = <0x0>;
xlnx,gt-type = <0x0>;
xlnx,gtinex = <0x0>;
xlnx,gtlocation = <0x0>;
xlnx,gtrefclksrc = <0x0>;
xlnx,include-dre ;
xlnx,instantiatebitslice0 = <0x0>;
xlnx,phy-type = <0x3>;
xlnx,phyaddr = <0x1>;
xlnx,rable = <0x0>;
xlnx,rxcsum = <0x0>;
xlnx,rxlane0-placement = <0x0>;
xlnx,rxlane1-placement = <0x0>;
xlnx,rxmem = <0x4000>;
xlnx,rxnibblebitslice0used = <0x0>;
xlnx,tx-in-upper-nibble = <0x1>;
xlnx,txcsum = <0x0>;
xlnx,txlane0-placement = <0x0>;
xlnx,txlane1-placement = <0x0>;
local-mac-address = [00 0a 35 00 00 00];
phy-handle = <&axi_phy0>;
axi_ethernet_0_mdio: mdio {
#address-cells = <1>;
#size-cells = <0>;
axi_phy0: phy@1 {
device_type = "ethernet-phy";
reg = <0x1>;
};
};
};

};

请各位大神指教！

您还未登录

登录后即可体验更多功能