Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Device Tree Source for IBM Embedded PPC 476 Platform |
| 3 | * |
| 4 | * Copyright © 2011 Tony Breeds IBM Corporation |
| 5 | * |
| 6 | * This file is licensed under the terms of the GNU General Public |
| 7 | * License version 2. This program is licensed "as is" without |
| 8 | * any warranty of any kind, whether express or implied. |
| 9 | */ |
| 10 | |
| 11 | /dts-v1/; |
| 12 | |
| 13 | /memreserve/ 0x01f00000 0x00100000; // spin table |
| 14 | |
| 15 | / { |
| 16 | #address-cells = <2>; |
| 17 | #size-cells = <2>; |
| 18 | model = "ibm,currituck"; |
| 19 | compatible = "ibm,currituck"; |
| 20 | dcr-parent = <&{/cpus/cpu@0}>; |
| 21 | |
| 22 | aliases { |
| 23 | serial0 = &UART0; |
| 24 | }; |
| 25 | |
| 26 | cpus { |
| 27 | #address-cells = <1>; |
| 28 | #size-cells = <0>; |
| 29 | |
| 30 | cpu@0 { |
| 31 | device_type = "cpu"; |
| 32 | model = "PowerPC,476"; |
| 33 | reg = <0>; |
| 34 | clock-frequency = <1600000000>; // 1.6 GHz |
| 35 | timebase-frequency = <100000000>; // 100Mhz |
| 36 | i-cache-line-size = <32>; |
| 37 | d-cache-line-size = <32>; |
| 38 | i-cache-size = <32768>; |
| 39 | d-cache-size = <32768>; |
| 40 | dcr-controller; |
| 41 | dcr-access-method = "native"; |
| 42 | status = "okay"; |
| 43 | }; |
| 44 | cpu@1 { |
| 45 | device_type = "cpu"; |
| 46 | model = "PowerPC,476"; |
| 47 | reg = <1>; |
| 48 | clock-frequency = <1600000000>; // 1.6 GHz |
| 49 | timebase-frequency = <100000000>; // 100Mhz |
| 50 | i-cache-line-size = <32>; |
| 51 | d-cache-line-size = <32>; |
| 52 | i-cache-size = <32768>; |
| 53 | d-cache-size = <32768>; |
| 54 | dcr-controller; |
| 55 | dcr-access-method = "native"; |
| 56 | status = "disabled"; |
| 57 | enable-method = "spin-table"; |
| 58 | cpu-release-addr = <0x0 0x01f00000>; |
| 59 | }; |
| 60 | }; |
| 61 | |
| 62 | memory { |
| 63 | device_type = "memory"; |
| 64 | reg = <0x0 0x0 0x0 0x0>; // filled in by zImage |
| 65 | }; |
| 66 | |
| 67 | MPIC: interrupt-controller { |
| 68 | compatible = "chrp,open-pic"; |
| 69 | interrupt-controller; |
| 70 | dcr-reg = <0xffc00000 0x00040000>; |
| 71 | #address-cells = <0>; |
| 72 | #size-cells = <0>; |
| 73 | #interrupt-cells = <2>; |
| 74 | |
| 75 | }; |
| 76 | |
| 77 | plb { |
| 78 | compatible = "ibm,plb6"; |
| 79 | #address-cells = <2>; |
| 80 | #size-cells = <2>; |
| 81 | ranges; |
| 82 | clock-frequency = <200000000>; // 200Mhz |
| 83 | |
| 84 | POB0: opb { |
| 85 | compatible = "ibm,opb-4xx", "ibm,opb"; |
| 86 | #address-cells = <1>; |
| 87 | #size-cells = <1>; |
| 88 | /* Wish there was a nicer way of specifying a full |
| 89 | * 32-bit range |
| 90 | */ |
| 91 | ranges = <0x00000000 0x00000200 0x00000000 0x80000000 |
| 92 | 0x80000000 0x00000200 0x80000000 0x80000000>; |
| 93 | clock-frequency = <100000000>; |
| 94 | |
| 95 | UART0: serial@10000000 { |
| 96 | device_type = "serial"; |
| 97 | compatible = "ns16750", "ns16550"; |
| 98 | reg = <0x10000000 0x00000008>; |
| 99 | virtual-reg = <0xe1000000>; |
| 100 | clock-frequency = <1851851>; // PCIe refclk/MCGC0_CTL[UART] |
| 101 | current-speed = <115200>; |
| 102 | interrupt-parent = <&MPIC>; |
| 103 | interrupts = <34 2>; |
| 104 | }; |
| 105 | |
| 106 | FPGA0: fpga@50000000 { |
| 107 | compatible = "ibm,currituck-fpga"; |
| 108 | reg = <0x50000000 0x4>; |
| 109 | }; |
| 110 | |
| 111 | IIC0: i2c@0 { |
| 112 | compatible = "ibm,iic-currituck", "ibm,iic"; |
| 113 | reg = <0x0 0x00000014>; |
| 114 | interrupt-parent = <&MPIC>; |
| 115 | interrupts = <79 2>; |
| 116 | #address-cells = <1>; |
| 117 | #size-cells = <0>; |
| 118 | rtc@68 { |
| 119 | compatible = "st,m41t80", "m41st85"; |
| 120 | reg = <0x68>; |
| 121 | }; |
| 122 | }; |
| 123 | }; |
| 124 | |
| 125 | PCIE0: pcie@10100000000 { // 4xGBIF1 |
| 126 | device_type = "pci"; |
| 127 | #interrupt-cells = <1>; |
| 128 | #size-cells = <2>; |
| 129 | #address-cells = <3>; |
| 130 | compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex"; |
| 131 | primary; |
| 132 | port = <0x0>; /* port number */ |
| 133 | reg = <0x00000101 0x00000000 0x0 0x10000000 /* Config space access */ |
| 134 | 0x00000100 0x00000000 0x0 0x00001000>; /* UTL Registers space access */ |
| 135 | dcr-reg = <0x80 0x20>; |
| 136 | |
| 137 | // pci_space < pci_addr > < cpu_addr > < size > |
| 138 | ranges = <0x02000000 0x00000000 0x80000000 0x00000110 0x80000000 0x0 0x80000000 |
| 139 | 0x01000000 0x0 0x0 0x00000140 0x0 0x0 0x00010000>; |
| 140 | |
| 141 | /* Inbound starting at 0 to memsize filled in by zImage */ |
| 142 | dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>; |
| 143 | |
| 144 | /* This drives busses 0 to 0xf */ |
| 145 | bus-range = <0x0 0xf>; |
| 146 | |
| 147 | /* Legacy interrupts (note the weird polarity, the bridge seems |
| 148 | * to invert PCIe legacy interrupts). |
| 149 | * We are de-swizzling here because the numbers are actually for |
| 150 | * port of the root complex virtual P2P bridge. But I want |
| 151 | * to avoid putting a node for it in the tree, so the numbers |
| 152 | * below are basically de-swizzled numbers. |
| 153 | * The real slot is on idsel 0, so the swizzling is 1:1 |
| 154 | */ |
| 155 | interrupt-map-mask = <0x0 0x0 0x0 0x7>; |
| 156 | interrupt-map = < |
| 157 | 0x0 0x0 0x0 0x1 &MPIC 46 0x2 /* int A */ |
| 158 | 0x0 0x0 0x0 0x2 &MPIC 47 0x2 /* int B */ |
| 159 | 0x0 0x0 0x0 0x3 &MPIC 48 0x2 /* int C */ |
| 160 | 0x0 0x0 0x0 0x4 &MPIC 49 0x2 /* int D */>; |
| 161 | }; |
| 162 | |
| 163 | PCIE1: pcie@30100000000 { // 4xGBIF0 |
| 164 | device_type = "pci"; |
| 165 | #interrupt-cells = <1>; |
| 166 | #size-cells = <2>; |
| 167 | #address-cells = <3>; |
| 168 | compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex"; |
| 169 | primary; |
| 170 | port = <0x1>; /* port number */ |
| 171 | reg = <0x00000301 0x00000000 0x0 0x10000000 /* Config space access */ |
| 172 | 0x00000300 0x00000000 0x0 0x00001000>; /* UTL Registers space access */ |
| 173 | dcr-reg = <0x60 0x20>; |
| 174 | |
| 175 | ranges = <0x02000000 0x00000000 0x80000000 0x00000310 0x80000000 0x0 0x80000000 |
| 176 | 0x01000000 0x0 0x0 0x00000340 0x0 0x0 0x00010000>; |
| 177 | |
| 178 | /* Inbound starting at 0 to memsize filled in by zImage */ |
| 179 | dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>; |
| 180 | |
| 181 | /* This drives busses 0 to 0xf */ |
| 182 | bus-range = <0x0 0xf>; |
| 183 | |
| 184 | /* Legacy interrupts (note the weird polarity, the bridge seems |
| 185 | * to invert PCIe legacy interrupts). |
| 186 | * We are de-swizzling here because the numbers are actually for |
| 187 | * port of the root complex virtual P2P bridge. But I want |
| 188 | * to avoid putting a node for it in the tree, so the numbers |
| 189 | * below are basically de-swizzled numbers. |
| 190 | * The real slot is on idsel 0, so the swizzling is 1:1 |
| 191 | */ |
| 192 | interrupt-map-mask = <0x0 0x0 0x0 0x7>; |
| 193 | interrupt-map = < |
| 194 | 0x0 0x0 0x0 0x1 &MPIC 38 0x2 /* int A */ |
| 195 | 0x0 0x0 0x0 0x2 &MPIC 39 0x2 /* int B */ |
| 196 | 0x0 0x0 0x0 0x3 &MPIC 40 0x2 /* int C */ |
| 197 | 0x0 0x0 0x0 0x4 &MPIC 41 0x2 /* int D */>; |
| 198 | }; |
| 199 | |
| 200 | PCIE2: pcie@38100000000 { // 2xGBIF0 |
| 201 | device_type = "pci"; |
| 202 | #interrupt-cells = <1>; |
| 203 | #size-cells = <2>; |
| 204 | #address-cells = <3>; |
| 205 | compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex"; |
| 206 | primary; |
| 207 | port = <0x2>; /* port number */ |
| 208 | reg = <0x00000381 0x00000000 0x0 0x10000000 /* Config space access */ |
| 209 | 0x00000380 0x00000000 0x0 0x00001000>; /* UTL Registers space access */ |
| 210 | dcr-reg = <0xA0 0x20>; |
| 211 | |
| 212 | ranges = <0x02000000 0x00000000 0x80000000 0x00000390 0x80000000 0x0 0x80000000 |
| 213 | 0x01000000 0x0 0x0 0x000003C0 0x0 0x0 0x00010000>; |
| 214 | |
| 215 | /* Inbound starting at 0 to memsize filled in by zImage */ |
| 216 | dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>; |
| 217 | |
| 218 | /* This drives busses 0 to 0xf */ |
| 219 | bus-range = <0x0 0xf>; |
| 220 | |
| 221 | /* Legacy interrupts (note the weird polarity, the bridge seems |
| 222 | * to invert PCIe legacy interrupts). |
| 223 | * We are de-swizzling here because the numbers are actually for |
| 224 | * port of the root complex virtual P2P bridge. But I want |
| 225 | * to avoid putting a node for it in the tree, so the numbers |
| 226 | * below are basically de-swizzled numbers. |
| 227 | * The real slot is on idsel 0, so the swizzling is 1:1 |
| 228 | */ |
| 229 | interrupt-map-mask = <0x0 0x0 0x0 0x7>; |
| 230 | interrupt-map = < |
| 231 | 0x0 0x0 0x0 0x1 &MPIC 54 0x2 /* int A */ |
| 232 | 0x0 0x0 0x0 0x2 &MPIC 55 0x2 /* int B */ |
| 233 | 0x0 0x0 0x0 0x3 &MPIC 56 0x2 /* int C */ |
| 234 | 0x0 0x0 0x0 0x4 &MPIC 57 0x2 /* int D */>; |
| 235 | }; |
| 236 | |
| 237 | }; |
| 238 | |
| 239 | chosen { |
| 240 | stdout-path = &UART0; |
| 241 | }; |
| 242 | }; |