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// SPDX-License-Identifier: GPL-2.0
/*
* Device Tree for the ARM Integrator/CP platform
*/
/dts-v1/;
/include/ "integrator.dtsi"
/ {
model = "ARM Integrator/CP";
compatible = "arm,integrator-cp";
chosen {
bootargs = "root=/dev/ram0 console=ttyAMA0,38400n8 earlyprintk";
};
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,arm920t"; */
reg = <0>;
/*
* TBD comment.
*/
/* kHz uV */
operating-points = <50000 0
48000 0>;
clocks = <&cmcore>;
clock-names = "cpu";
clock-latency = <1000000>; /* 1 ms */
};
};
/*
* The Integrator/CP overall clocking architecture can be found in
* ARM DUI 0184B page 7-28 "Integrator/CP922T system clocks" which
* appear to illustrate the layout used in most configurations.
*/
/* The codec chrystal operates at 24.576 MHz */
xtal_codec: xtal24.576@24.576M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24576000>;
};
/* The chrystal is divided by 2 by the codec for the AACI bit clock */
aaci_bitclk: aaci_bitclk@12.288M {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-div = <2>;
clock-mult = <1>;
clocks = <&xtal_codec>;
};
/* This is a 25MHz chrystal on the base board */
xtal25mhz: xtal25mhz@25M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <25000000>;
};
/* The UART clock is 14.74 MHz divided from 25MHz by an ICS525 */
uartclk: uartclk@14.74M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <14745600>;
};
/* Actually sysclk I think */
pclk: pclk@0 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <0>;
};
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 */
cmcore: cmosc@24M {
compatible = "arm,syscon-icst525-integratorcp-cm-core";
#clock-cells = <0>;
lock-offset = <0x14>;
vco-offset = <0x08>;
clocks = <&cm24mhz>;
};
/* Oscillator on the core module, clocks the memory bus */
cmmem: cmosc@24M {
compatible = "arm,syscon-icst525-integratorcp-cm-mem";
#clock-cells = <0>;
lock-offset = <0x14>;
vco-offset = <0x08>;
clocks = <&cm24mhz>;
};
/* Auxilary oscillator on the core module, clocks the CLCD */
auxosc: auxosc@24M {
compatible = "arm,syscon-icst525";
#clock-cells = <0>;
lock-offset = <0x14>;
vco-offset = <0x1c>;
clocks = <&cm24mhz>;
};
/* The KMI clock is the 24 MHz oscillator divided to 8MHz */
kmiclk: kmiclk@1M {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-div = <3>;
clock-mult = <1>;
clocks = <&cm24mhz>;
};
/* The timer clock is the 24 MHz oscillator divided to 1MHz */
timclk: timclk@1M {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-div = <24>;
clock-mult = <1>;
clocks = <&cm24mhz>;
};
};
syscon {
compatible = "arm,integrator-cp-syscon", "syscon";
reg = <0xcb000000 0x100>;
};
timer0: timer@13000000 {
/* TIMER0 runs directly on the 25MHz chrystal */
compatible = "arm,integrator-cp-timer";
clocks = <&xtal25mhz>;
};
timer1: timer@13000100 {
/* TIMER1 runs @ 1MHz */
compatible = "arm,integrator-cp-timer";
clocks = <&timclk>;
};
timer2: timer@13000200 {
/* TIMER2 runs @ 1MHz */
compatible = "arm,integrator-cp-timer";
clocks = <&timclk>;
};
pic: pic@14000000 {
valid-mask = <0x1fc003ff>;
};
cic: cic@10000040 {
compatible = "arm,versatile-fpga-irq";
#interrupt-cells = <1>;
interrupt-controller;
reg = <0x10000040 0x100>;
clear-mask = <0xffffffff>;
valid-mask = <0x00000007>;
};
/* The SIC is cascaded off IRQ 26 on the PIC */
sic: sic@ca000000 {
compatible = "arm,versatile-fpga-irq";
interrupt-parent = <&pic>;
interrupts = <26>;
#interrupt-cells = <1>;
interrupt-controller;
reg = <0xca000000 0x100>;
clear-mask = <0x00000fff>;
valid-mask = <0x00000fff>;
};
ethernet@c8000000 {
compatible = "smsc,lan91c111";
reg = <0xc8000000 0x10>;
interrupt-parent = <&pic>;
interrupts = <27>;
};
fpga {
/*
* These PrimeCells are at the same location and using
* the same interrupts in all Integrators, but in the CP
* slightly newer versions are deployed.
*/
rtc@15000000 {
compatible = "arm,pl031", "arm,primecell";
clocks = <&pclk>;
clock-names = "apb_pclk";
};
uart@16000000 {
compatible = "arm,pl011", "arm,primecell";
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
uart@17000000 {
compatible = "arm,pl011", "arm,primecell";
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
kmi@18000000 {
compatible = "arm,pl050", "arm,primecell";
clocks = <&kmiclk>, <&pclk>;
clock-names = "KMIREFCLK", "apb_pclk";
};
kmi@19000000 {
compatible = "arm,pl050", "arm,primecell";
clocks = <&kmiclk>, <&pclk>;
clock-names = "KMIREFCLK", "apb_pclk";
};
/*
* These PrimeCells are only available on the Integrator/CP
*/
mmc@1c000000 {
compatible = "arm,pl180", "arm,primecell";
reg = <0x1c000000 0x1000>;
interrupts = <23 24>;
max-frequency = <515633>;
clocks = <&uartclk>, <&pclk>;
clock-names = "mclk", "apb_pclk";
};
aaci@1d000000 {
compatible = "arm,pl041", "arm,primecell";
reg = <0x1d000000 0x1000>;
interrupts = <25>;
clocks = <&pclk>;
clock-names = "apb_pclk";
};
clcd@c0000000 {
compatible = "arm,pl110", "arm,primecell";
reg = <0xC0000000 0x1000>;
interrupts = <22>;
clocks = <&auxosc>, <&pclk>;
clock-names = "clcdclk", "apb_pclk";
port {
/*
* The VGA connected is implemented with a
* THS8134A triple DAC that can be run in 24bit
* or 16bit RGB mode.
*/
clcd_pads: endpoint {
remote-endpoint = <&clcd_panel>;
arm,pl11x,tft-r0g0b0-pads = <1 7 13>;
};
};
panel {
compatible = "panel-dpi";
port {
clcd_panel: endpoint {
remote-endpoint = <&clcd_pads>;
};
};
/* Standard 640x480 VGA timings */
panel-timing {
clock-frequency = <25175000>;
hactive = <640>;
hback-porch = <48>;
hfront-porch = <16>;
hsync-len = <96>;
vactive = <480>;
vback-porch = <33>;
vfront-porch = <10>;
vsync-len = <2>;
};
};
};
};
};
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