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f2791ed731
Replace the "simple-bus" simplification by the proper bus for IXP4xx memory or device expansion. Use chip-select addressing with two address cells on all the flashes mounted on the IXP4xx devices. This includes all flash chips. Change the unit-name from @50000000 to @c4000000 as the DTS validation screams. The registers for controlling the bus are at c4000000 but the actual memory windows and ranges are at 50000000. Well it is just syntax, we can live with it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
146 lines
3.4 KiB
Plaintext
146 lines
3.4 KiB
Plaintext
// SPDX-License-Identifier: ISC
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/*
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* Device Tree file for D-Link DSM-G600 revision A based on IXP420
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* NOTE: revision B of this device uses PowerPC and is NOT supported by
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* this device tree.
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*
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* Inspired by the boardfile by Rod Whitby, Tower Technologies, Alessandro Zummo
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* and Michael Westerhof.
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*/
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/dts-v1/;
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#include "intel-ixp42x.dtsi"
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#include <dt-bindings/input/input.h>
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/ {
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model = "D-Link DSM-G600 rev A";
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compatible = "dlink,dsm-g600-a", "intel,ixp42x";
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#address-cells = <1>;
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#size-cells = <1>;
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memory@0 {
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/* 64 MB SDRAM */
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device_type = "memory";
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reg = <0x00000000 0x4000000>;
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};
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chosen {
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bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootwait";
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stdout-path = "uart0:115200n8";
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};
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aliases {
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serial0 = &uart0;
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};
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leds {
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compatible = "gpio-leds";
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led-power {
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label = "dsmg600:green:power";
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gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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linux,default-trigger = "heartbeat";
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};
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led-wlan {
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label = "dsmg600:green:wlan";
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/* CHECKME: flagged as active low in the old board file */
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gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
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default-state = "on";
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/* We don't have WLAN trigger in the kernel (yet) */
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linux,default-trigger = "netdev";
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};
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};
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gpio_keys {
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compatible = "gpio-keys";
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button-reset {
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wakeup-source;
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linux,code = <KEY_ESC>;
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label = "reset";
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gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
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};
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};
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gpio_keys_polled {
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compatible = "gpio-keys-polled";
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/*
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* According to the board file this key cannot handle interrupts and
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* need to be polled. Investigate if this is really the case or if
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* this can be moved adjacent to the ordinary gpio-keys above.
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*/
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button-power {
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wakeup-source;
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linux,code = <KEY_POWER>;
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label = "power";
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gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
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};
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};
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i2c {
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compatible = "i2c-gpio";
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sda-gpios = <&gpio0 5 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
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scl-gpios = <&gpio0 4 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
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#address-cells = <1>;
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#size-cells = <0>;
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rtc@51 {
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compatible = "nxp,pcf8563";
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reg = <0x51>;
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};
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};
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gpio-poweroff {
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compatible = "gpio-poweroff";
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gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
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timeout-ms = <5000>;
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};
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soc {
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bus@c4000000 {
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/* The first 16MB region at CS0 on the expansion bus */
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flash@0,0 {
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compatible = "intel,ixp4xx-flash", "cfi-flash";
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bank-width = <2>;
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/*
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* 16 MB of Flash in 128 0x20000 sized blocks
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* mapped in at CS0.
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*/
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reg = <0 0x00000000 0x1000000>;
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partitions {
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compatible = "redboot-fis";
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/*
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* A boot log says the directory is at 0xfe0000
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* 0x7f * 0x20000 = 0xfe0000
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*/
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fis-index-block = <0x7f>;
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};
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};
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};
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pci@c0000000 {
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status = "ok";
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/*
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* Taken from DSM-G600 PCI boardfile (dsmg600-pci.c)
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* We have slots (IDSEL) 1, 2, 3, 4 and pins 1, 2 and 3.
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* Only slot 3 have three IRQs.
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*/
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interrupt-map =
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/* IDSEL 1 */
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<0x0800 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT E on slot 1 is irq 7 */
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/* IDSEL 2 */
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<0x1000 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 11 */
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/* IDSEL 3 */
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<0x1800 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 10 */
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<0x1800 0 0 2 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 9 */
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<0x1800 0 0 3 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 8 */
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/* IDSEL 4 */
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<0x2000 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT F on slot 4 is irq 6 */
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};
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};
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};
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