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linux-next/arch/openrisc/boot/dts/or1ksim.dts
Stafford Horne ae2930583c or1k: dts: Fix ethoc network configuration in or1ksim devicetree
This fixes several issues with the ethoc network device config.

Fisrt off, the compatible property used an obsolete compatibility
string; this caused the initialization to be skipped.  Next, the
register map was not given enough space to allocate ring descriptors,
this caused module initialization to abort.  Finally, we need to mark
this device as big-endian as needed by openrisc.

This was tested by me in qemu, the setup is documented on the qemu wiki:

  https://wiki.qemu.org/Documentation/Platforms/OpenRISC

Signed-off-by: Stafford Horne <shorne@gmail.com>
2019-08-31 11:46:59 +09:00

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// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
/ {
compatible = "opencores,or1ksim";
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&pic>;
aliases {
uart0 = &serial0;
};
chosen {
bootargs = "earlycon";
stdout-path = "uart0:115200";
};
memory@0 {
device_type = "memory";
reg = <0x00000000 0x02000000>;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
compatible = "opencores,or1200-rtlsvn481";
reg = <0>;
clock-frequency = <20000000>;
};
};
/*
* OR1K PIC is built into CPU and accessed via special purpose
* registers. It is not addressable and, hence, has no 'reg'
* property.
*/
pic: pic {
compatible = "opencores,or1k-pic";
#interrupt-cells = <1>;
interrupt-controller;
};
serial0: serial@90000000 {
compatible = "opencores,uart16550-rtlsvn105", "ns16550a";
reg = <0x90000000 0x100>;
interrupts = <2>;
clock-frequency = <20000000>;
};
enet0: ethoc@92000000 {
compatible = "opencores,ethoc";
reg = <0x92000000 0x800>;
interrupts = <4>;
big-endian;
};
};