1// SPDX-License-Identifier: ISC 2/* 3 * Device Tree file for Gateworks IXP43x-based Cambria GW2358 4 */ 5 6/dts-v1/; 7 8#include "intel-ixp43x.dtsi" 9 10/ { 11 model = "Gateworks Cambria GW2358"; 12 compatible = "gateworks,gw2358", "intel,ixp43x"; 13 #address-cells = <1>; 14 #size-cells = <1>; 15 16 memory@0 { 17 /* 128 MB SDRAM */ 18 device_type = "memory"; 19 reg = <0x00000000 0x8000000>; 20 }; 21 22 chosen { 23 bootargs = "console=ttyS0,115200n8 root=/dev/mtdblock2 rw rootfstype=squashfs,jffs2 rootwait"; 24 stdout-path = "uart0:115200n8"; 25 }; 26 27 aliases { 28 serial0 = &uart0; 29 }; 30 31 leds { 32 compatible = "gpio-leds"; 33 led-user { 34 label = "gw2358:green:LED"; 35 gpios = <&pld1 0 GPIO_ACTIVE_LOW>; 36 default-state = "on"; 37 linux,default-trigger = "heartbeat"; 38 }; 39 }; 40 41 42 i2c { 43 compatible = "i2c-gpio"; 44 sda-gpios = <&gpio0 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 45 scl-gpios = <&gpio0 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 46 #address-cells = <1>; 47 #size-cells = <0>; 48 49 hwmon@28 { 50 compatible = "adi,ad7418"; 51 reg = <0x28>; 52 }; 53 rtc: ds1672@68 { 54 compatible = "dallas,ds1672"; 55 reg = <0x68>; 56 }; 57 eeprom@51 { 58 compatible = "atmel,24c08"; 59 reg = <0x51>; 60 pagesize = <16>; 61 size = <1024>; 62 read-only; 63 }; 64 pld0: pld@56 { 65 compatible = "gateworks,pld-gpio"; 66 reg = <0x56>; 67 gpio-controller; 68 #gpio-cells = <2>; 69 }; 70 /* This PLD just handles the LED and user button */ 71 pld1: pld@57 { 72 compatible = "gateworks,pld-gpio"; 73 reg = <0x57>; 74 gpio-controller; 75 #gpio-cells = <2>; 76 }; 77 }; 78 79 soc { 80 bus@c4000000 { 81 flash@0,0 { 82 compatible = "intel,ixp4xx-flash", "cfi-flash"; 83 bank-width = <2>; 84 /* Enable writes on the expansion bus */ 85 intel,ixp4xx-eb-write-enable = <1>; 86 /* 87 * 32 MB of Flash in 0x20000 byte blocks 88 * mapped in at CS0 and CS1 89 */ 90 reg = <0 0x00000000 0x2000000>; 91 92 partitions { 93 compatible = "redboot-fis"; 94 /* Eraseblock at 0x1fe0000 */ 95 fis-index-block = <0xff>; 96 }; 97 }; 98 ide@3,0 { 99 compatible = "intel,ixp4xx-compact-flash"; 100 /* 101 * Set up expansion bus config to a really slow timing. 102 * The CF driver will dynamically reconfigure these timings 103 * depending on selected PIO mode (0-4). 104 */ 105 intel,ixp4xx-eb-t1 = <3>; // 3 cycles extra address phase 106 intel,ixp4xx-eb-t2 = <3>; // 3 cycles extra setup phase 107 intel,ixp4xx-eb-t3 = <15>; // 15 cycles extra strobe phase 108 intel,ixp4xx-eb-t4 = <3>; // 3 cycles extra hold phase 109 intel,ixp4xx-eb-t5 = <15>; // 15 cycles extra recovery phase 110 intel,ixp4xx-eb-cycle-type = <0>; // Intel cycle type 111 intel,ixp4xx-eb-byte-access-on-halfword = <1>; 112 intel,ixp4xx-eb-mux-address-and-data = <0>; 113 intel,ixp4xx-eb-ahb-split-transfers = <0>; 114 intel,ixp4xx-eb-write-enable = <1>; 115 intel,ixp4xx-eb-byte-access = <1>; 116 /* First register set is CMD second is CTL */ 117 reg = <3 0xe00000 0x40000>, <3 0xe40000 0x40000>; 118 interrupt-parent = <&gpio0>; 119 interrupts = <12 IRQ_TYPE_EDGE_RISING>; 120 }; 121 }; 122 123 pci@c0000000 { 124 status = "okay"; 125 126 /* 127 * In the boardfile for the Cambria from OpenWRT the interrupts 128 * are assigned one per IDSEL, so all 4 interrupts from IDSEL 129 * 1 are connected to IRQ 11, all 4 interrupts from IDSEL 2 130 * connected to IRQ 10 etc. I find this highly unlikely so I 131 * have instead assumed that they are rotated (swizzled) like 132 * this with 11, 10, 9, 8 for the 4 pins on IDSEL 1 etc. 133 */ 134 #interrupt-cells = <1>; 135 interrupt-map-mask = <0xf800 0 0 7>; 136 interrupt-map = 137 /* IDSEL 1 */ 138 <0x0800 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 11 */ 139 <0x0800 0 0 2 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 10 */ 140 <0x0800 0 0 3 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 9 */ 141 <0x0800 0 0 4 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 8 */ 142 /* IDSEL 2 */ 143 <0x1000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 10 */ 144 <0x1000 0 0 2 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 9 */ 145 <0x1000 0 0 3 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 8 */ 146 <0x1000 0 0 4 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 2 is irq 11 */ 147 /* IDSEL 3 */ 148 <0x1800 0 0 1 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 9 */ 149 <0x1800 0 0 2 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 8 */ 150 <0x1800 0 0 3 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 11 */ 151 <0x1800 0 0 4 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 10 */ 152 /* IDSEL 4 */ 153 <0x2000 0 0 1 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 8 */ 154 <0x2000 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 11 */ 155 <0x2000 0 0 3 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 10 */ 156 <0x2000 0 0 4 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 9 */ 157 /* IDSEL 6 */ 158 <0x3000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 10 */ 159 <0x3000 0 0 2 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 9 */ 160 <0x3000 0 0 3 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 8 */ 161 <0x3000 0 0 4 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 11 */ 162 /* IDSEL 15 */ 163 <0x7800 0 0 1 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 8 */ 164 <0x7800 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 11 */ 165 <0x7800 0 0 3 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 10 */ 166 <0x7800 0 0 4 &gpio0 9 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 3 is irq 9 */ 167 }; 168 169 ethernet@c800a000 { 170 status = "okay"; 171 queue-rx = <&qmgr 4>; 172 queue-txready = <&qmgr 21>; 173 phy-mode = "rgmii"; 174 phy-handle = <&phy1>; 175 176 mdio { 177 #address-cells = <1>; 178 #size-cells = <0>; 179 180 phy1: ethernet-phy@1 { 181 reg = <1>; 182 }; 183 184 phy2: ethernet-phy@2 { 185 reg = <2>; 186 }; 187 }; 188 }; 189 190 ethernet@c800c000 { 191 status = "okay"; 192 queue-rx = <&qmgr 2>; 193 queue-txready = <&qmgr 19>; 194 phy-mode = "rgmii"; 195 phy-handle = <&phy2>; 196 intel,npe-handle = <&npe 0>; 197 }; 198 }; 199}; 200