mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 15:26:21 +09:00
0c401fdf27
virt device tree incorrectly uses 0xf0000000 on both sides of PCI IO ports address space mapping. This results in incorrect port address assignment in PCI IO BARs and subsequent crash on attempt to access them. Use 0 as base address in PCI IO ports address space. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
73 lines
1.5 KiB
Plaintext
73 lines
1.5 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
|
|
/dts-v1/;
|
|
|
|
/ {
|
|
compatible = "cdns,xtensa-iss";
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
interrupt-parent = <&pic>;
|
|
|
|
chosen {
|
|
bootargs = "console=ttyS0,115200n8 debug";
|
|
};
|
|
|
|
memory@0 {
|
|
device_type = "memory";
|
|
reg = <0x00000000 0x80000000>;
|
|
};
|
|
|
|
cpus {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
cpu@0 {
|
|
compatible = "cdns,xtensa-cpu";
|
|
reg = <0>;
|
|
clocks = <&osc>;
|
|
};
|
|
};
|
|
|
|
clocks {
|
|
osc: osc {
|
|
#clock-cells = <0>;
|
|
compatible = "fixed-clock";
|
|
clock-frequency = <40000000>;
|
|
};
|
|
};
|
|
|
|
pic: pic {
|
|
compatible = "cdns,xtensa-pic";
|
|
/* one cell: internal irq number,
|
|
* two cells: second cell == 0: internal irq number
|
|
* second cell == 1: external irq number
|
|
*/
|
|
#address-cells = <0>;
|
|
#interrupt-cells = <2>;
|
|
interrupt-controller;
|
|
};
|
|
|
|
pci {
|
|
compatible = "pci-host-ecam-generic";
|
|
device_type = "pci";
|
|
#address-cells = <3>;
|
|
#size-cells = <2>;
|
|
#interrupt-cells = <0x1>;
|
|
|
|
bus-range = <0x0 0x3e>;
|
|
reg = <0xf0100000 0x03f00000>;
|
|
|
|
// BUS_ADDRESS(3) CPU_PHYSICAL(1) SIZE(2)
|
|
ranges = <0x01000000 0x0 0x00000000 0xf0000000 0x0 0x00010000>,
|
|
<0x02000000 0x0 0xf4000000 0xf4000000 0x0 0x08000000>;
|
|
|
|
// PCI_DEVICE(3) INT#(1) CONTROLLER(PHANDLE) CONTROLLER_DATA(2)
|
|
interrupt-map = <
|
|
0x0000 0x0 0x0 0x1 &pic 0x0 0x1
|
|
0x0800 0x0 0x0 0x1 &pic 0x1 0x1
|
|
0x1000 0x0 0x0 0x1 &pic 0x2 0x1
|
|
0x1800 0x0 0x0 0x1 &pic 0x3 0x1
|
|
>;
|
|
|
|
interrupt-map-mask = <0x1800 0x0 0x0 0x7>;
|
|
};
|
|
};
|