// 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>; }; }; }; }; };