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/dts-v1/; 13 14/ { 15 #address-cells = <1>; 16 #size-cells = <1>; 17 model = "ibm,walnut"; 18 compatible = "ibm,walnut"; 19 dcr-parent = <&{/cpus/cpu@0}>; 20 21 aliases { 22 ethernet0 = &EMAC; 23 serial0 = &UART0; 24 serial1 = &UART1; 25 }; 26 27 cpus { 28 #address-cells = <1>; 29 #size-cells = <0>; 30 31 cpu@0 { 32 device_type = "cpu"; 33 model = "PowerPC,405GP"; 34 reg = <0x00000000>; 35 clock-frequency = <200000000>; /* Filled in by zImage */ 36 timebase-frequency = <0>; /* Filled in by zImage */ 37 i-cache-line-size = <32>; 38 d-cache-line-size = <32>; 39 i-cache-size = <16384>; 40 d-cache-size = <16384>; 41 dcr-controller; 42 dcr-access-method = "native"; 43 }; 44 }; 45 46 memory { 47 device_type = "memory"; 48 reg = <0x00000000 0x00000000>; /* Filled in by zImage */ 49 }; 50 51 UIC0: interrupt-controller { 52 compatible = "ibm,uic"; 53 interrupt-controller; 54 cell-index = <0>; 55 dcr-reg = <0x0c0 0x009>; 56 #address-cells = <0>; 57 #size-cells = <0>; 58 #interrupt-cells = <2>; 59 }; 60 61 plb { 62 compatible = "ibm,plb3"; 63 #address-cells = <1>; 64 #size-cells = <1>; 65 ranges; 66 clock-frequency = <0>; /* Filled in by zImage */ 67 68 SDRAM0: memory-controller { 69 compatible = "ibm,sdram-405gp"; 70 dcr-reg = <0x010 0x002>; 71 }; 72 73 MAL: mcmal { 74 compatible = "ibm,mcmal-405gp", "ibm,mcmal"; 75 dcr-reg = <0x180 0x062>; 76 num-tx-chans = <1>; 77 num-rx-chans = <1>; 78 interrupt-parent = <&UIC0>; 79 interrupts = < 80 0xb 0x4 /* TXEOB */ 81 0xc 0x4 /* RXEOB */ 82 0xa 0x4 /* SERR */ 83 0xd 0x4 /* TXDE */ 84 0xe 0x4 /* RXDE */>; 85 }; 86 87 POB0: opb { 88 compatible = "ibm,opb-405gp", "ibm,opb"; 89 #address-cells = <1>; 90 #size-cells = <1>; 91 ranges = <0xef600000 0xef600000 0x00a00000>; 92 dcr-reg = <0x0a0 0x005>; 93 clock-frequency = <0>; /* Filled in by zImage */ 94 95 UART0: serial@ef600300 { 96 device_type = "serial"; 97 compatible = "ns16550"; 98 reg = <0xef600300 0x00000008>; 99 virtual-reg = <0xef600300>; 100 clock-frequency = <0>; /* Filled in by zImage */ 101 current-speed = <9600>; 102 interrupt-parent = <&UIC0>; 103 interrupts = <0x0 0x4>; 104 }; 105 106 UART1: serial@ef600400 { 107 device_type = "serial"; 108 compatible = "ns16550"; 109 reg = <0xef600400 0x00000008>; 110 virtual-reg = <0xef600400>; 111 clock-frequency = <0>; /* Filled in by zImage */ 112 current-speed = <9600>; 113 interrupt-parent = <&UIC0>; 114 interrupts = <0x1 0x4>; 115 }; 116 117 IIC: i2c@ef600500 { 118 compatible = "ibm,iic-405gp", "ibm,iic"; 119 reg = <0xef600500 0x00000011>; 120 interrupt-parent = <&UIC0>; 121 interrupts = <0x2 0x4>; 122 }; 123 124 GPIO: gpio@ef600700 { 125 compatible = "ibm,gpio-405gp"; 126 reg = <0xef600700 0x00000020>; 127 }; 128 129 EMAC: ethernet@ef600800 { 130 device_type = "network"; 131 compatible = "ibm,emac-405gp", "ibm,emac"; 132 interrupt-parent = <&UIC0>; 133 interrupts = < 134 0xf 0x4 /* Ethernet */ 135 0x9 0x4 /* Ethernet Wake Up */>; 136 local-mac-address = [000000000000]; /* Filled in by zImage */ 137 reg = <0xef600800 0x00000070>; 138 mal-device = <&MAL>; 139 mal-tx-channel = <0>; 140 mal-rx-channel = <0>; 141 cell-index = <0>; 142 max-frame-size = <1500>; 143 rx-fifo-size = <4096>; 144 tx-fifo-size = <2048>; 145 phy-mode = "rmii"; 146 phy-map = <0x00000001>; 147 }; 148 149 }; 150 151 EBC0: ebc { 152 compatible = "ibm,ebc-405gp", "ibm,ebc"; 153 dcr-reg = <0x012 0x002>; 154 #address-cells = <2>; 155 #size-cells = <1>; 156 /* The ranges property is supplied by the bootwrapper 157 * and is based on the firmware's configuration of the 158 * EBC bridge 159 */ 160 clock-frequency = <0>; /* Filled in by zImage */ 161 162 sram@0,0 { 163 reg = <0x00000000 0x00000000 0x00080000>; 164 }; 165 166 flash@0,80000 { 167 compatible = "jedec-flash"; 168 bank-width = <1>; 169 reg = <0x00000000 0x00080000 0x00080000>; 170 #address-cells = <1>; 171 #size-cells = <1>; 172 partition@0 { 173 label = "OpenBIOS"; 174 reg = <0x00000000 0x00080000>; 175 read-only; 176 }; 177 }; 178 179 nvram@1,0 { 180 /* NVRAM and RTC */ 181 compatible = "ds1743-nvram"; 182 #bytes = <0x2000>; 183 reg = <0x00000001 0x00000000 0x00002000>; 184 }; 185 186 keyboard@2,0 { 187 compatible = "intel,82C42PC"; 188 reg = <0x00000002 0x00000000 0x00000002>; 189 }; 190 191 ir@3,0 { 192 compatible = "ti,TIR2000PAG"; 193 reg = <0x00000003 0x00000000 0x00000010>; 194 }; 195 196 fpga@7,0 { 197 compatible = "Walnut-FPGA"; 198 reg = <0x00000007 0x00000000 0x00000010>; 199 virtual-reg = <0xf0300005>; 200 }; 201 }; 202 203 PCI0: pci@ec000000 { 204 device_type = "pci"; 205 #interrupt-cells = <1>; 206 #size-cells = <2>; 207 #address-cells = <3>; 208 compatible = "ibm,plb405gp-pci", "ibm,plb-pci"; 209 primary; 210 reg = <0xeec00000 0x00000008 /* Config space access */ 211 0xeed80000 0x00000004 /* IACK */ 212 0xeed80000 0x00000004 /* Special cycle */ 213 0xef480000 0x00000040>; /* Internal registers */ 214 215 /* Outbound ranges, one memory and one IO, 216 * later cannot be changed. Chip supports a second 217 * IO range but we don't use it for now 218 */ 219 ranges = <0x02000000 0x00000000 0x80000000 0x80000000 0x00000000 0x20000000 220 0x01000000 0x00000000 0x00000000 0xe8000000 0x00000000 0x00010000>; 221 222 /* Inbound 2GB range starting at 0 */ 223 dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x80000000>; 224 225 /* Walnut has all 4 IRQ pins tied together per slot */ 226 interrupt-map-mask = <0xf800 0x0 0x0 0x0>; 227 interrupt-map = < 228 /* IDSEL 1 */ 229 0x800 0x0 0x0 0x0 &UIC0 0x1c 0x8 230 231 /* IDSEL 2 */ 232 0x1000 0x0 0x0 0x0 &UIC0 0x1d 0x8 233 234 /* IDSEL 3 */ 235 0x1800 0x0 0x0 0x0 &UIC0 0x1e 0x8 236 237 /* IDSEL 4 */ 238 0x2000 0x0 0x0 0x0 &UIC0 0x1f 0x8 239 >; 240 }; 241 }; 242 243 chosen { 244 linux,stdout-path = "/plb/opb/serial@ef600300"; 245 }; 246}; 247