arch/arm/boot/dts/intel-ixp42x-adi-coyote.dts

   1 // SPDX-License-Identifier: ISC
   2 /*
   3  * Device Tree file for ADI Engineering Coyote platform.
   4  * Derived from boardfiles written by MontaVista software.
   5  * Ethernet set-up from OpenWrt.
   6  */
   7
   8 /dts-v1/;
   9
  10 #include "intel-ixp42x.dtsi"
  11 #include <dt-bindings/input/input.h>
  12
  13 / {
  14         model = "ADI Engineering Coyote reference design";
  15         compatible = "adieng,coyote", "intel,ixp42x";
  16         #address-cells = <1>;
  17         #size-cells = <1>;
  18
  19         memory@0 {
  20                 /* CHECKME: 16 MB SDRAM minimum, maybe the Coyote actually has more */
  21                 device_type = "memory";
  22                 reg = <0x00000000 0x01000000>;
  23         };
  24
  25         chosen {
  26                 bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootwait";
  27                 stdout-path = "uart1:115200n8";
  28         };
  29
  30         aliases {
  31                 /* These are switched around */
  32                 serial0 = &uart1;
  33                 serial1 = &uart0;
  34         };
  35
  36         soc {
  37                 bus@c4000000 {
  38                         flash@0,0 {
  39                                 compatible = "intel,ixp4xx-flash", "cfi-flash";
  40                                 bank-width = <2>;
  41                                 /*
  42                                  * 32 MB of Flash in 128 0x20000 sized blocks
  43                                  * mapped in at CS0 and CS1
  44                                  */
  45                                 reg = <0 0x00000000 0x2000000>;
  46
  47                                 /* Configure expansion bus to allow writes */
  48                                 intel,ixp4xx-eb-write-enable = <1>;
  49
  50                                 partitions {
  51                                         compatible = "redboot-fis";
  52                                         /* CHECKME: guess this is Redboot FIS */
  53                                         fis-index-block = <0x1ff>;
  54                                 };
  55                         };
  56                 };
  57
  58                 pci@c0000000 {
  59                         status = "ok";
  60
  61                         /*
  62                          * Taken from Coyote PCI boardfile.
  63                          * We have slots (IDSEL) 1 and 2 with one assigned IRQ
  64                          * each handling all IRQs.
  65                          */
  66                         interrupt-map =
  67                         /* IDSEL 1 */
  68                         <0x0800 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 6 */
  69                         <0x0800 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 6 */
  70                         <0x0800 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 6 */
  71                         <0x0800 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 6 */
  72                         /* IDSEL 2 */
  73                         <0x1000 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 11 */
  74                         <0x1000 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 11 */
  75                         <0x1000 0 0 3 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 11 */
  76                         <0x1000 0 0 4 &gpio0 11 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 2 is irq 11 */
  77                 };
  78
  79                 /* EthB */
  80                 ethernet@c8009000 {
  81                         status = "ok";
  82                         queue-rx = <&qmgr 3>;
  83                         queue-txready = <&qmgr 20>;
  84                         phy-mode = "rgmii";
  85                         phy-handle = <&phy5>;
  86
  87                         mdio {
  88                                 #address-cells = <1>;
  89                                 #size-cells = <0>;
  90
  91                                 phy4: ethernet-phy@4 {
  92                                         reg = <4>;
  93                                 };
  94
  95                                 phy5: ethernet-phy@5 {
  96                                         reg = <5>;
  97                                 };
  98                         };
  99                 };
 100
 101                 /* EthC */
 102                 ethernet@c800a000 {
 103                         status = "ok";
 104                         queue-rx = <&qmgr 4>;
 105                         queue-txready = <&qmgr 21>;
 106                         phy-mode = "rgmii";
 107                         phy-handle = <&phy4>;
 108                 };
 109         };
 110 };