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// SPDX-License-Identifier: ISC
/*
* Device Tree file for Gateworks IXP43x-based Cambria GW2358
*/
/dts-v1/;
#include "intel-ixp43x.dtsi"
/ {
model = "Gateworks Cambria GW2358";
compatible = "gateworks,gw2358", "intel,ixp43x";
#address-cells = <1>;
#size-cells = <1>;
memory@0 {
/* 128 MB SDRAM */
device_type = "memory";
reg = <0x00000000 0x8000000>;
};
chosen {
bootargs = "console=ttyS0,115200n8 root=/dev/mtdblock2 rw rootfstype=squashfs,jffs2 rootwait";
stdout-path = "uart0:115200n8";
};
aliases {
serial0 = &uart0;
};
leds {
compatible = "gpio-leds";
led-user {
label = "gw2358:green:LED";
gpios = <&pld1 0 GPIO_ACTIVE_LOW>;
default-state = "on";
linux,default-trigger = "heartbeat";
};
};
i2c {
compatible = "i2c-gpio";
sda-gpios = <&gpio0 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
scl-gpios = <&gpio0 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
#address-cells = <1>;
#size-cells = <0>;
hwmon@28 {
compatible = "adi,ad7418";
reg = <0x28>;
};
rtc: ds1672@68 {
compatible = "dallas,ds1672";
reg = <0x68>;
};
eeprom@51 {
compatible = "atmel,24c08";
reg = <0x51>;
pagesize = <16>;
size = <1024>;
read-only;
};
pld0: pld@56 {
compatible = "gateworks,pld-gpio";
reg = <0x56>;
gpio-controller;
#gpio-cells = <2>;
};
/* This PLD just handles the LED and user button */
pld1: pld@57 {
compatible = "gateworks,pld-gpio";
reg = <0x57>;
gpio-controller;
#gpio-cells = <2>;
};
};
soc {
bus@c4000000 {
flash@0,0 {
compatible = "intel,ixp4xx-flash", "cfi-flash";
bank-width = <2>;
/* Enable writes on the expansion bus */
intel,ixp4xx-eb-write-enable = <1>;
/*
* 32 MB of Flash in 0x20000 byte blocks
* mapped in at CS0 and CS1
*/
reg = <0 0x00000000 0x2000000>;
partitions {
compatible = "redboot-fis";
/* Eraseblock at 0x1fe0000 */
fis-index-block = <0xff>;
};
};
ide@3,0 {
compatible = "intel,ixp4xx-compact-flash";
/*
* Set up expansion bus config to a really slow timing.
* The CF driver will dynamically reconfigure these timings
* depending on selected PIO mode (0-4).
*/
intel,ixp4xx-eb-t1 = <3>; // 3 cycles extra address phase
intel,ixp4xx-eb-t2 = <3>; // 3 cycles extra setup phase
intel,ixp4xx-eb-t3 = <15>; // 15 cycles extra strobe phase
intel,ixp4xx-eb-t4 = <3>; // 3 cycles extra hold phase
intel,ixp4xx-eb-t5 = <15>; // 15 cycles extra recovery phase
intel,ixp4xx-eb-cycle-type = <0>; // Intel cycle type
intel,ixp4xx-eb-byte-access-on-halfword = <1>;
intel,ixp4xx-eb-mux-address-and-data = <0>;
intel,ixp4xx-eb-ahb-split-transfers = <0>;
intel,ixp4xx-eb-write-enable = <1>;
intel,ixp4xx-eb-byte-access = <1>;
/* First register set is CMD second is CTL */
reg = <3 0xe00000 0x40000>, <3 0xe40000 0x40000>;
interrupt-parent = <&gpio0>;
interrupts = <12 IRQ_TYPE_EDGE_RISING>;
};
};
pci@c0000000 {
status = "okay";
/*
* In the boardfile for the Cambria from OpenWRT the interrupts
* are assigned one per IDSEL, so all 4 interrupts from IDSEL
* 1 are connected to IRQ 11, all 4 interrupts from IDSEL 2
* connected to IRQ 10 etc. I find this highly unlikely so I
* have instead assumed that they are rotated (swizzled) like
* this with 11, 10, 9, 8 for the 4 pins on IDSEL 1 etc.
*/
#interrupt-cells = <1>;
interrupt-map-mask = <0xf800 0 0 7>;
interrupt-map =
/* IDSEL 1 */
<0x0800 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 11 */
<0x0800 0 0 2 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 10 */
<0x0800 0 0 3 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 9 */
<0x0800 0 0 4 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 8 */
/* IDSEL 2 */
<0x1000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 10 */
<0x1000 0 0 2 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 9 */
<0x1000 0 0 3 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 8 */
<0x1000 0 0 4 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 2 is irq 11 */
/* IDSEL 3 */
<0x1800 0 0 1 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 9 */
<0x1800 0 0 2 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 8 */
<0x1800 0 0 3 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 11 */
<0x1800 0 0 4 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 10 */
/* IDSEL 4 */
<0x2000 0 0 1 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 8 */
<0x2000 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 11 */
<0x2000 0 0 3 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 10 */
<0x2000 0 0 4 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 9 */
/* IDSEL 6 */
<0x3000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 10 */
<0x3000 0 0 2 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 9 */
<0x3000 0 0 3 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 8 */
<0x3000 0 0 4 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 11 */
/* IDSEL 15 */
<0x7800 0 0 1 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 8 */
<0x7800 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 11 */
<0x7800 0 0 3 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 10 */
<0x7800 0 0 4 &gpio0 9 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 3 is irq 9 */
};
ethernet@c800a000 {
status = "okay";
queue-rx = <&qmgr 4>;
queue-txready = <&qmgr 21>;
phy-mode = "rgmii";
phy-handle = <&phy1>;
mdio {
#address-cells = <1>;
#size-cells = <0>;
phy1: ethernet-phy@1 {
reg = <1>;
};
phy2: ethernet-phy@2 {
reg = <2>;
};
};
};
ethernet@c800c000 {
status = "okay";
queue-rx = <&qmgr 2>;
queue-txready = <&qmgr 19>;
phy-mode = "rgmii";
phy-handle = <&phy2>;
intel,npe-handle = <&npe 0>;
};
};
};
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