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116 lines
2.8 KiB
116 lines
2.8 KiB
/* |
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* Device Tree Source for IBM Embedded PPC 476 Platform |
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* |
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* Copyright 2010 Torez Smith, IBM Corporation. |
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* |
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* Based on earlier code: |
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* Copyright (c) 2006, 2007 IBM Corp. |
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* Josh Boyer <[email protected]>, David Gibson <[email protected]> |
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* |
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* This file is licensed under the terms of the GNU General Public |
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* License version 2. This program is licensed "as is" without |
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* any warranty of any kind, whether express or implied. |
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*/ |
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/dts-v1/; |
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/ { |
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#address-cells = <2>; |
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#size-cells = <1>; |
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model = "ibm,iss-4xx"; |
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compatible = "ibm,iss-4xx"; |
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dcr-parent = <&{/cpus/cpu@0}>; |
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aliases { |
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serial0 = &UART0; |
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}; |
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cpus { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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cpu@0 { |
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device_type = "cpu"; |
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model = "PowerPC,4xx"; // real CPU changed in sim |
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reg = <0x00000000>; |
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clock-frequency = <100000000>; // 100Mhz :-) |
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timebase-frequency = <100000000>; |
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i-cache-line-size = <32>; // may need fixup in sim |
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d-cache-line-size = <32>; // may need fixup in sim |
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i-cache-size = <32768>; /* may need fixup in sim */ |
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d-cache-size = <32768>; /* may need fixup in sim */ |
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dcr-controller; |
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dcr-access-method = "native"; |
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}; |
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}; |
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memory { |
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device_type = "memory"; |
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reg = <0x00000000 0x00000000 0x00000000>; // Filled in by zImage |
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}; |
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UIC0: interrupt-controller0 { |
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compatible = "ibm,uic-4xx", "ibm,uic"; |
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interrupt-controller; |
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cell-index = <0>; |
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dcr-reg = <0x0c0 0x009>; |
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#address-cells = <0>; |
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#size-cells = <0>; |
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#interrupt-cells = <2>; |
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}; |
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UIC1: interrupt-controller1 { |
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compatible = "ibm,uic-4xx", "ibm,uic"; |
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interrupt-controller; |
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cell-index = <1>; |
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dcr-reg = <0x0d0 0x009>; |
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#address-cells = <0>; |
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#size-cells = <0>; |
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#interrupt-cells = <2>; |
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interrupts = <0x1e 0x4 0x1f 0x4>; /* cascade */ |
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interrupt-parent = <&UIC0>; |
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}; |
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plb { |
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compatible = "ibm,plb-4xx", "ibm,plb4"; /* Could be PLB6, doesn't matter */ |
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#address-cells = <2>; |
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#size-cells = <1>; |
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ranges; |
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clock-frequency = <0>; // Filled in by zImage |
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POB0: opb { |
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compatible = "ibm,opb-4xx", "ibm,opb"; |
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#address-cells = <1>; |
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#size-cells = <1>; |
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/* Wish there was a nicer way of specifying a full 32-bit |
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range */ |
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ranges = <0x00000000 0x00000001 0x00000000 0x80000000 |
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0x80000000 0x00000001 0x80000000 0x80000000>; |
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clock-frequency = <0>; // Filled in by zImage |
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UART0: serial@40000200 { |
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device_type = "serial"; |
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compatible = "ns16550a"; |
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reg = <0x40000200 0x00000008>; |
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virtual-reg = <0xe0000200>; |
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clock-frequency = <11059200>; |
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current-speed = <115200>; |
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interrupt-parent = <&UIC0>; |
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interrupts = <0x0 0x4>; |
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}; |
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}; |
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}; |
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nvrtc { |
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compatible = "ds1743-nvram", "ds1743", "rtc-ds1743"; |
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reg = <0 0xEF703000 0x2000>; |
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}; |
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iss-block { |
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compatible = "ibm,iss-sim-block-device"; |
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reg = <0 0xEF701000 0x1000>; |
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}; |
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chosen { |
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stdout-path = "/plb/opb/serial@40000200"; |
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}; |
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};
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