1// SPDX-License-Identifier: ISC 2/* 3 * Device Tree file for D-Link DSM-G600 revision A based on IXP420 4 * NOTE: revision B of this device uses PowerPC and is NOT supported by 5 * this device tree. 6 * 7 * Inspired by the boardfile by Rod Whitby, Tower Technologies, Alessandro Zummo 8 * and Michael Westerhof. 9 */ 10 11/dts-v1/; 12 13#include "intel-ixp42x.dtsi" 14#include <dt-bindings/input/input.h> 15 16/ { 17 model = "D-Link DSM-G600 rev A"; 18 compatible = "dlink,dsm-g600-a", "intel,ixp42x"; 19 #address-cells = <1>; 20 #size-cells = <1>; 21 22 memory@0 { 23 /* 64 MB SDRAM */ 24 device_type = "memory"; 25 reg = <0x00000000 0x4000000>; 26 }; 27 28 chosen { 29 bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootwait"; 30 stdout-path = "uart0:115200n8"; 31 }; 32 33 aliases { 34 serial0 = &uart0; 35 }; 36 37 leds { 38 compatible = "gpio-leds"; 39 led-power { 40 label = "dsmg600:green:power"; 41 gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>; 42 default-state = "on"; 43 linux,default-trigger = "heartbeat"; 44 }; 45 led-wlan { 46 label = "dsmg600:green:wlan"; 47 /* CHECKME: flagged as active low in the old board file */ 48 gpios = <&gpio0 14 GPIO_ACTIVE_LOW>; 49 default-state = "on"; 50 /* We don't have WLAN trigger in the kernel (yet) */ 51 linux,default-trigger = "netdev"; 52 }; 53 }; 54 55 gpio_keys { 56 compatible = "gpio-keys"; 57 58 button-reset { 59 wakeup-source; 60 linux,code = <KEY_RESTART>; 61 label = "reset"; 62 gpios = <&gpio0 3 GPIO_ACTIVE_LOW>; 63 }; 64 }; 65 66 gpio_keys_polled { 67 compatible = "gpio-keys-polled"; 68 69 /* 70 * According to the board file this key cannot handle interrupts and 71 * need to be polled. Investigate if this is really the case or if 72 * this can be moved adjacent to the ordinary gpio-keys above. 73 */ 74 button-power { 75 wakeup-source; 76 linux,code = <KEY_POWER>; 77 label = "power"; 78 gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>; 79 }; 80 }; 81 82 i2c { 83 compatible = "i2c-gpio"; 84 sda-gpios = <&gpio0 5 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 85 scl-gpios = <&gpio0 4 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 86 #address-cells = <1>; 87 #size-cells = <0>; 88 89 rtc@51 { 90 compatible = "nxp,pcf8563"; 91 reg = <0x51>; 92 }; 93 }; 94 95 gpio-poweroff { 96 compatible = "gpio-poweroff"; 97 gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>; 98 timeout-ms = <5000>; 99 }; 100 101 soc { 102 bus@c4000000 { 103 /* The first 16MB region at CS0 on the expansion bus */ 104 flash@0,0 { 105 compatible = "intel,ixp4xx-flash", "cfi-flash"; 106 bank-width = <2>; 107 /* 108 * 16 MB of Flash in 128 0x20000 sized blocks 109 * mapped in at CS0. 110 */ 111 reg = <0 0x00000000 0x1000000>; 112 113 partitions { 114 compatible = "redboot-fis"; 115 /* 116 * A boot log says the directory is at 0xfe0000 117 * 0x7f * 0x20000 = 0xfe0000 118 */ 119 fis-index-block = <0x7f>; 120 }; 121 }; 122 }; 123 124 pci@c0000000 { 125 status = "okay"; 126 127 /* 128 * Taken from DSM-G600 PCI boardfile (dsmg600-pci.c) 129 * We have slots (IDSEL) 1, 2, 3, 4 and pins 1, 2 and 3. 130 * Only slot 3 have three IRQs. 131 */ 132 #interrupt-cells = <1>; 133 interrupt-map-mask = <0xf800 0 0 7>; 134 interrupt-map = 135 /* IDSEL 1 */ 136 <0x0800 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT E on slot 1 is irq 7 */ 137 /* IDSEL 2 */ 138 <0x1000 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 11 */ 139 /* IDSEL 3 */ 140 <0x1800 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 10 */ 141 <0x1800 0 0 2 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 9 */ 142 <0x1800 0 0 3 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 8 */ 143 /* IDSEL 4 */ 144 <0x2000 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT F on slot 4 is irq 6 */ 145 }; 146 }; 147}; 148