mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 04:15:27 +07:00
e2fc61f384
With up-to-date FPGA builds ARC cores are supposed to correctly operate even with 90 MHz clock (which is a target frequency for AXS103 release). Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: arc-linux-dev@synopsys.com
127 lines
3.0 KiB
Plaintext
127 lines
3.0 KiB
Plaintext
/*
|
|
* Copyright (C) 2014, 2015 Synopsys, Inc. (www.synopsys.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
/*
|
|
* Device tree for AXC003 CPU card: HS38x2 (Dual Core) with IDU intc
|
|
*/
|
|
|
|
/ {
|
|
compatible = "snps,arc";
|
|
clock-frequency = <90000000>;
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
|
|
cpu_card {
|
|
compatible = "simple-bus";
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
|
|
ranges = <0x00000000 0xf0000000 0x10000000>;
|
|
|
|
cpu_intc: archs-intc@cpu {
|
|
compatible = "snps,archs-intc";
|
|
interrupt-controller;
|
|
#interrupt-cells = <1>;
|
|
};
|
|
|
|
idu_intc: idu-interrupt-controller {
|
|
compatible = "snps,archs-idu-intc";
|
|
interrupt-controller;
|
|
interrupt-parent = <&cpu_intc>;
|
|
|
|
/*
|
|
* <hwirq distribution>
|
|
* distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
|
|
*/
|
|
#interrupt-cells = <2>;
|
|
|
|
/*
|
|
* upstream irqs to core intc - downstream these are
|
|
* "COMMON" irq 0,1..
|
|
*/
|
|
interrupts = <24 25>;
|
|
};
|
|
|
|
/*
|
|
* this GPIO block ORs all interrupts on CPU card (creg,..)
|
|
* to uplink only 1 IRQ to ARC core intc
|
|
*/
|
|
dw-apb-gpio@0x2000 {
|
|
compatible = "snps,dw-apb-gpio";
|
|
reg = < 0x2000 0x80 >;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
ictl_intc: gpio-controller@0 {
|
|
compatible = "snps,dw-apb-gpio-port";
|
|
gpio-controller;
|
|
#gpio-cells = <2>;
|
|
snps,nr-gpios = <30>;
|
|
reg = <0>;
|
|
interrupt-controller;
|
|
#interrupt-cells = <2>;
|
|
interrupt-parent = <&idu_intc>;
|
|
|
|
/*
|
|
* cmn irq 1 -> cpu irq 25
|
|
* Distribute to cpu0 only
|
|
*/
|
|
interrupts = <1 1>;
|
|
};
|
|
};
|
|
|
|
debug_uart: dw-apb-uart@0x5000 {
|
|
compatible = "snps,dw-apb-uart";
|
|
reg = <0x5000 0x100>;
|
|
clock-frequency = <33333000>;
|
|
interrupt-parent = <&ictl_intc>;
|
|
interrupts = <2 4>;
|
|
baud = <115200>;
|
|
reg-shift = <2>;
|
|
reg-io-width = <4>;
|
|
};
|
|
|
|
arcpct0: pct {
|
|
compatible = "snps,archs-pct";
|
|
#interrupt-cells = <1>;
|
|
interrupt-parent = <&cpu_intc>;
|
|
interrupts = <20>;
|
|
};
|
|
};
|
|
|
|
/*
|
|
* This INTC is actually connected to DW APB GPIO
|
|
* which acts as a wire between MB INTC and CPU INTC.
|
|
* GPIO INTC is configured in platform init code
|
|
* and here we mimic direct connection from MB INTC to
|
|
* CPU INTC, thus we set "interrupts = <0 1>" instead of
|
|
* "interrupts = <12>"
|
|
*
|
|
* This intc actually resides on MB, but we move it here to
|
|
* avoid duplicating the MB dtsi file given that IRQ from
|
|
* this intc to cpu intc are different for axs101 and axs103
|
|
*/
|
|
mb_intc: dw-apb-ictl@0xe0012000 {
|
|
#interrupt-cells = <1>;
|
|
compatible = "snps,dw-apb-ictl";
|
|
reg = < 0xe0012000 0x200 >;
|
|
interrupt-controller;
|
|
interrupt-parent = <&idu_intc>;
|
|
interrupts = <0 1>; /* cmn irq 0 -> cpu irq 24
|
|
distribute to cpu0 only */
|
|
};
|
|
|
|
memory {
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
ranges = <0x00000000 0x80000000 0x40000000>;
|
|
device_type = "memory";
|
|
reg = <0x00000000 0x20000000>; /* 512MiB */
|
|
};
|
|
};
|