// SPDX-License-Identifier: GPL-2.0
/*
* Device Tree for the ARM Integrator/AP platform
*/
/dts-v1/;
#include "integrator.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
model = "ARM Integrator/AP";
compatible = "arm,integrator-ap";
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
/*
* Since the board has pluggable CPU modules, we
* cannot define a proper compatible here. Let the
* boot loader fill in the apropriate compatible
* string if necessary.
*/
/* compatible = "arm,arm926ej-s"; */
reg = <0>;
/*
* The documentation in ARM DUI 0138E page 3-12 states
* that the maximum frequency for this clock is 200 MHz
* but painful trial-and-error has proved to me that it
* is actually just hanging the system above 71 MHz.
* Sad but true.
*/
/* kHz uV */
operating-points = <71000 0
66000 0
60000 0
48000 0
36000 0
24000 0
12000 0>;
clocks = <&cmosc>;
clock-names = "cpu";
clock-latency = <1000000>; /* 1 ms */
};
};
aliases {
arm,timer-primary = &timer2;
arm,timer-secondary = &timer1;
};
chosen {
bootargs = "root=/dev/ram0 console=ttyAM0,38400n8 earlyprintk";
};
/* 24 MHz chrystal on the Integrator/AP development board */
xtal24mhz: xtal24mhz@24M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24000000>;
};
pclk: pclk@0 {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-div = <1>;
clock-mult = <1>;
clocks = <&xtal24mhz>;
};
/* The UART clock is 14.74 MHz divided by an ICS525 */
uartclk: uartclk@14.74M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <14745600>;
clocks = <&xtal24mhz>;
};
core-module@10000000 {
/* 24 MHz chrystal on the core module */
cm24mhz: cm24mhz@24M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24000000>;
};
/* Oscillator on the core module, clocks the CPU core */
cmosc: clock-controller@8 {
compatible = "arm,syscon-icst525-integratorap-cm";
reg = <0x08 0x04>;
#clock-cells = <0>;
lock-offset = <0x14>;
vco-offset = <0x08>;
clocks = <&cm24mhz>;
};
/* Auxilary oscillator on the core module, 32.369MHz at boot */
auxosc: clock-controller@1c {
compatible = "arm,syscon-icst525";
reg = <0x1c 0x04>;
#clock-cells = <0>;
lock-offset = <0x14>;
vco-offset = <0x1c>;
clocks = <&cm24mhz>;
};
};
syscon {
compatible = "arm,integrator-ap-syscon", "syscon";
reg = <0x11000000 0x100>;
ranges = <0x0 0x11000000 0x100>;
#size-cells = <1>;
#address-cells = <1>;
/*
* SYSCLK clocks PCIv3 bridge, system controller and the
* logic modules.
*/
sysclk: clock-controller@4 {
compatible = "arm,syscon-icst525-integratorap-sys";
reg = <0x04 0x04>;
#clock-cells = <0>;
lock-offset = <0x1c>;
vco-offset = <0x04>;
clocks = <&xtal24mhz>;
};
/* One-bit control for the PCI bus clock (33 or 25 MHz) */
pciclk: clock-controller@4,8 {
compatible = "arm,syscon-icst525-integratorap-pci";
reg = <0x04 0x04>;
#clock-cells = <0>;
lock-offset = <0x1c>;
vco-offset = <0x04>;
clocks = <&xtal24mhz>;
};
};
timer0: timer@13000000 {
compatible = "arm,integrator-timer";
clocks = <&xtal24mhz>;
};
timer1: timer@13000100 {
compatible = "arm,integrator-timer";
clocks = <&xtal24mhz>;
};
timer2: timer@13000200 {
compatible = "arm,integrator-timer";
clocks = <&xtal24mhz>;
};
pic: pic@14000000 {
valid-mask = <0x003fffff>;
};
pci: pci@62000000 {
compatible = "arm,integrator-ap-pci", "v3,v360epc-pci";
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
/* Bridge registers and config access space */
reg = <0x62000000 0x10000>, <0x61000000 0x01000000>;
interrupt-parent = <&pic>;
interrupts = <17>; /* Bus error IRQ */
clocks = <&pciclk>;
bus-range = <0x00 0xff>;
ranges = <0x01000000 0 0x0000000 /* I/O space @00000000 */
0x60000000 0 0x00010000 /* 64 KB @ LB 60000000 */
0x02000000 0 0x40000000 /* non-prefectable memory @40000000 */
0x40000000 0 0x10000000 /* 256 MiB @ LB 40000000 1:1 */
0x42000000 0 0x50000000 /* prefetchable memory @50000000 */
0x50000000 0 0x10000000>; /* 256 MiB @ LB 50000000 1:1 */
dma-ranges = <0x02000000 0 0x20000000 /* EBI memory space */
0x20000000 0 0x20000000 /* 512 MB @ LB 20000000 1:1 */
0x02000000 0 0x80000000 /* Core module alias memory */
0x80000000 0 0x40000000>; /* 1GB @ LB 80000000 */
interrupt-map-mask = <0xf800 0 0 0x7>;
interrupt-map = <
/* IDSEL 9 */
0x4800 0 0 1 &pic 13 /* INT A on slot 9 is irq 13 */
0x4800 0 0 2 &pic 14 /* INT B on slot 9 is irq 14 */
0x4800 0 0 3 &pic 15 /* INT C on slot 9 is irq 15 */
0x4800 0 0 4 &pic 16 /* INT D on slot 9 is irq 16 */
/* IDSEL 10 */
0x5000 0 0 1 &pic 14 /* INT A on slot 10 is irq 14 */
0x5000 0 0 2 &pic 15 /* INT B on slot 10 is irq 15 */
0x5000 0 0 3 &pic 16 /* INT C on slot 10 is irq 16 */
0x5000 0 0 4 &pic 13 /* INT D on slot 10 is irq 13 */
/* IDSEL 11 */
0x5800 0 0 1 &pic 15 /* INT A on slot 11 is irq 15 */
0x5800 0 0 2 &pic 16 /* INT B on slot 11 is irq 16 */
0x5800 0 0 3 &pic 13 /* INT C on slot 11 is irq 13 */
0x5800 0 0 4 &pic 14 /* INT D on slot 11 is irq 14 */
/* IDSEL 12 */
0x6000 0 0 1 &pic 16 /* INT A on slot 12 is irq 16 */
0x6000 0 0 2 &pic 13 /* INT B on slot 12 is irq 13 */
0x6000 0 0 3 &pic 14 /* INT C on slot 12 is irq 14 */
0x6000 0 0 4 &pic 15 /* INT D on slot 12 is irq 15 */
>;
};
fpga {
/*
* The Integator/AP predates the idea to have magic numbers
* identifying the PrimeCell in hardware, thus we have to
* supply these from the device tree.
*/
rtc: rtc@15000000 {
compatible = "arm,pl030", "arm,primecell";
arm,primecell-periphid = <0x00041030>;
clocks = <&pclk>;
clock-names = "apb_pclk";
};
uart0: serial@16000000 {
compatible = "arm,pl010", "arm,primecell";
arm,primecell-periphid = <0x00041010>;
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
uart1: serial@17000000 {
compatible = "arm,pl010", "arm,primecell";
arm,primecell-periphid = <0x00041010>;
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
kmi0: kmi@18000000 {
compatible = "arm,pl050", "arm,primecell";
arm,primecell-periphid = <0x00041050>;
clocks = <&xtal24mhz>, <&pclk>;
clock-names = "KMIREFCLK", "apb_pclk";
};
kmi1: kmi@19000000 {
compatible = "arm,pl050", "arm,primecell";
arm,primecell-periphid = <0x00041050>;
clocks = <&xtal24mhz>, <&pclk>;
clock-names = "KMIREFCLK", "apb_pclk";
};
};
/*
* Logic module bus, we support up to 4 logical modules
* They appear at 0xc0000000, 0xd0000000, 0xe0000000 and 0xf0000000
* and use interrupts 9, 10, 11 and 12 respectively.
*/
bus@c0000000 {
compatible = "arm,integrator-ap-lm";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0xc0000000 0xc0000000 0x40000000>;
dma-ranges;
lm0: bus@c0000000 {
compatible = "simple-bus";
ranges = <0x00000000 0xc0000000 0x10000000>;
dma-ranges = <0x00000000 0xc0000000 0x10000000>;
reg = <0xc0000000 0x10000000>;
#address-cells = <1>;
#size-cells = <1>;
};
lm1: bus@d0000000 {
compatible = "simple-bus";
ranges = <0x00000000 0xd0000000 0x10000000>;
dma-ranges = <0x00000000 0xd0000000 0x10000000>;
reg = <0xd0000000 0x10000000>;
#address-cells = <1>;
#size-cells = <1>;
};
lm2: bus@e0000000 {
compatible = "simple-bus";
ranges = <0x00000000 0xe0000000 0x10000000>;
dma-ranges = <0x00000000 0xe0000000 0x10000000>;
reg = <0xe0000000 0x10000000>;
#address-cells = <1>;
#size-cells = <1>;
};
lm3: bus@f0000000 {
compatible = "simple-bus";
ranges = <0x00000000 0xf0000000 0x10000000>;
dma-ranges = <0x00000000 0xf0000000 0x10000000>;
reg = <0xf0000000 0x10000000>;
#address-cells = <1>;
#size-cells = <1>;
};
};
};