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   1 /*
   2  * Device Tree Source for IBM Walnut
   3  *
   4  * Copyright 2007 IBM Corp.
   5  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
   6  *
   7  * This file is licensed under the terms of the GNU General Public
   8  * License version 2.  This program is licensed "as is" without
   9  * any warranty of any kind, whether express or implied.
  10  */
  11
  12 / {
  13         #address-cells = <1>;
  14         #size-cells = <1>;
  15         model = "ibm,walnut";
  16         compatible = "ibm,walnut";
  17         dcr-parent = <&/cpus/PowerPC,405GP@0>;
  18
  19         cpus {
  20                 #address-cells = <1>;
  21                 #size-cells = <0>;
  22
  23                 PowerPC,405GP@0 {
  24                         device_type = "cpu";
  25                         reg = <0>;
  26                         clock-frequency = <bebc200>; /* Filled in by zImage */
  27                         timebase-frequency = <0>; /* Filled in by zImage */
  28                         i-cache-line-size = <20>;
  29                         d-cache-line-size = <20>;
  30                         i-cache-size = <4000>;
  31                         d-cache-size = <4000>;
  32                         dcr-controller;
  33                         dcr-access-method = "native";
  34                 };
  35         };
  36
  37         memory {
  38                 device_type = "memory";
  39                 reg = <0 0>; /* Filled in by zImage */
  40         };
  41
  42         UIC0: interrupt-controller {
  43                 compatible = "ibm,uic";
  44                 interrupt-controller;
  45                 cell-index = <0>;
  46                 dcr-reg = <0c0 9>;
  47                 #address-cells = <0>;
  48                 #size-cells = <0>;
  49                 #interrupt-cells = <2>;
  50         };
  51
  52         plb {
  53                 compatible = "ibm,plb3";
  54                 #address-cells = <1>;
  55                 #size-cells = <1>;
  56                 ranges;
  57                 clock-frequency = <0>; /* Filled in by zImage */
  58
  59                 SDRAM0: memory-controller {
  60                         compatible = "ibm,sdram-405gp";
  61                         dcr-reg = <010 2>;
  62                 };
  63
  64                 MAL: mcmal {
  65                         compatible = "ibm,mcmal-405gp", "ibm,mcmal";
  66                         dcr-reg = <180 62>;
  67                         num-tx-chans = <1>;
  68                         num-rx-chans = <1>;
  69                         interrupt-parent = <&UIC0>;
  70                         interrupts = <
  71                                 b 4 /* TXEOB */
  72                                 c 4 /* RXEOB */
  73                                 a 4 /* SERR */
  74                                 d 4 /* TXDE */
  75                                 e 4 /* RXDE */>;
  76                 };
  77
  78                 POB0: opb {
  79                         compatible = "ibm,opb-405gp", "ibm,opb";
  80                         #address-cells = <1>;
  81                         #size-cells = <1>;
  82                         ranges = <ef600000 ef600000 a00000>;
  83                         dcr-reg = <0a0 5>;
  84                         clock-frequency = <0>; /* Filled in by zImage */
  85
  86                         UART0: serial@ef600300 {
  87                                 device_type = "serial";
  88                                 compatible = "ns16550";
  89                                 reg = <ef600300 8>;
  90                                 virtual-reg = <ef600300>;
  91                                 clock-frequency = <0>; /* Filled in by zImage */
  92                                 current-speed = <2580>;
  93                                 interrupt-parent = <&UIC0>;
  94                                 interrupts = <0 4>;
  95                         };
  96
  97                         UART1: serial@ef600400 {
  98                                 device_type = "serial";
  99                                 compatible = "ns16550";
 100                                 reg = <ef600400 8>;
 101                                 virtual-reg = <ef600400>;
 102                                 clock-frequency = <0>; /* Filled in by zImage */
 103                                 current-speed = <2580>;
 104                                 interrupt-parent = <&UIC0>;
 105                                 interrupts = <1 4>;
 106                         };
 107
 108                         IIC: i2c@ef600500 {
 109                                 compatible = "ibm,iic-405gp", "ibm,iic";
 110                                 reg = <ef600500 11>;
 111                                 interrupt-parent = <&UIC0>;
 112                                 interrupts = <2 4>;
 113                         };
 114
 115                         GPIO: gpio@ef600700 {
 116                                 compatible = "ibm,gpio-405gp";
 117                                 reg = <ef600700 20>;
 118                         };
 119
 120                         EMAC: ethernet@ef600800 {
 121                                 linux,network-index = <0>;
 122                                 device_type = "network";
 123                                 compatible = "ibm,emac-405gp", "ibm,emac";
 124                                 interrupt-parent = <&UIC0>;
 125                                 interrupts = <
 126                                         f 4 /* Ethernet */
 127                                         9 4 /* Ethernet Wake Up */>;
 128                                 local-mac-address = [000000000000]; /* Filled in by zImage */
 129                                 reg = <ef600800 70>;
 130                                 mal-device = <&MAL>;
 131                                 mal-tx-channel = <0>;
 132                                 mal-rx-channel = <0>;
 133                                 cell-index = <0>;
 134                                 max-frame-size = <5dc>;
 135                                 rx-fifo-size = <1000>;
 136                                 tx-fifo-size = <800>;
 137                                 phy-mode = "rmii";
 138                                 phy-map = <00000001>;
 139                         };
 140
 141                 };
 142
 143                 EBC0: ebc {
 144                         compatible = "ibm,ebc-405gp", "ibm,ebc";
 145                         dcr-reg = <012 2>;
 146                         #address-cells = <2>;
 147                         #size-cells = <1>;
 148                         /* The ranges property is supplied by the bootwrapper
 149                          * and is based on the firmware's configuration of the
 150                          * EBC bridge
 151                          */
 152                         clock-frequency = <0>; /* Filled in by zImage */
 153
 154                         sram@0,0 {
 155                                 reg = <0 0 80000>;
 156                         };
 157
 158                         flash@0,80000 {
 159                                 compatible = "jedec-flash";
 160                                 bank-width = <1>;
 161                                 reg = <0 80000 80000>;
 162                                 #address-cells = <1>;
 163                                 #size-cells = <1>;
 164                                 partition@0 {
 165                                         label = "OpenBIOS";
 166                                         reg = <0 80000>;
 167                                         read-only;
 168                                 };
 169                         };
 170
 171                         ds1743@1,0 {
 172                                 /* NVRAM and RTC */
 173                                 compatible = "ds1743";
 174                                 reg = <1 0 2000>;
 175                         };
 176
 177                         keyboard@2,0 {
 178                                 compatible = "intel,82C42PC";
 179                                 reg = <2 0 2>;
 180                         };
 181
 182                         ir@3,0 {
 183                                 compatible = "ti,TIR2000PAG";
 184                                 reg = <3 0 10>;
 185                         };
 186
 187                         fpga@7,0 {
 188                                 compatible = "Walnut-FPGA";
 189                                 reg = <7 0 10>;
 190                                 virtual-reg = <f0300005>;
 191                         };
 192                 };
 193         };
 194
 195         chosen {
 196                 linux,stdout-path = "/plb/opb/serial@ef600300";
 197         };
 198 };