// 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: clock-24576000 {
#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: clock-12288000 {
#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: clock-25000000 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <25000000>;
};
/* The UART clock is 14.74 MHz divided from 25MHz by an ICS525 */
uartclk: clock-14745600 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <14745600>;
};
/* Actually sysclk I think */
pclk: clock-pclk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <0>;
};
core-module@10000000 {
/* 24 MHz chrystal on the core module */
cm24mhz: clock-24000000 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24000000>;
};
/* Oscillator on the core module, clocks the CPU core */
cmcore: clock-controller@8 {
compatible = "arm,syscon-icst525-integratorcp-cm-core";
reg = <0x08 0x04>;
#clock-cells = <0>;
lock-offset = <0x14>;
vco-offset = <0x08>;
clocks = <&cm24mhz>;
};
/* Oscillator on the core module, clocks the memory bus */
cmmem: clock-controller@8,12 {
compatible = "arm,syscon-icst525-integratorcp-cm-mem";
reg = <0x08 0x04>;
#clock-cells = <0>;
lock-offset = <0x14>;
vco-offset = <0x08>;
clocks = <&cm24mhz>;
};
/* Auxilary oscillator on the core module, clocks the CLCD */
auxosc: clock-controller@1c {
compatible = "arm,syscon-icst525";
reg = <0x1c 0x04>;
#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: clock-1000000 {
#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>;
};
bridge {
compatible = "ti,ths8134a", "ti,ths8134";
#address-cells = <1>;
#size-cells = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
vga_bridge_in: endpoint {
remote-endpoint = <&clcd_pads_vga_dac>;
};
};
port@1 {
reg = <1>;
vga_bridge_out: endpoint {
remote-endpoint = <&vga_con_in>;
};
};
};
};
vga {
compatible = "vga-connector";
port {
vga_con_in: endpoint {
remote-endpoint = <&vga_bridge_out>;
};
};
};
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";
};
serial@16000000 {
compatible = "arm,pl011", "arm,primecell";
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
serial@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";
/* 640x480 16bpp @ 25.175MHz is 36827428 bytes/s */
max-memory-bandwidth = <40000000>;
/*
* This port is routed through a PLD (Programmable
* Logic Device) that routes the output from the CLCD
* (after transformations) to the VGA DAC and also an
* external panel connector. The PLD is essential for
* supporting RGB565/BGR565.
*
* The signals from the port thus reaches two endpoints.
* The PLD is managed through a few special bits in the
* FPGA "sysreg".
*
* This arrangement can be clearly seen in
* ARM DUI 0225D, page 3-41, figure 3-19.
*/
port@0 {
clcd_pads_vga_dac: endpoint {
remote-endpoint = <&vga_bridge_in>;
arm,pl11x,tft-r0g0b0-pads = <0 8 16>;
};
};
};
};
};
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