110 lines
2.2 KiB
Plaintext
110 lines
2.2 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
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#include "mt7621.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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/ {
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chosen {
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bootargs = "console=ttyS0,115200n8";
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};
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keys: keys {
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compatible = "gpio-keys";
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reset {
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label = "reset";
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gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_RESTART>;
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};
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};
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};
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&nand {
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status = "okay";
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "Bootloader";
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reg = <0x0 0x80000>;
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read-only;
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};
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partition@80000 {
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label = "Config";
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reg = <0x80000 0x40000>;
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};
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partition@c0000 {
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label = "Bdata";
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reg = <0xc0000 0x40000>;
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read-only;
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};
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factory: partition@100000 {
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label = "factory";
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reg = <0x100000 0x40000>;
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read-only;
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};
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partition@140000 {
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label = "crash";
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reg = <0x140000 0x40000>;
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};
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partition@180000 {
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label = "crash_syslog";
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reg = <0x180000 0x40000>;
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};
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partition@1c0000 {
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label = "reserved0";
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reg = <0x1c0000 0x40000>;
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read-only;
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};
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/* uboot expects to find kernels at 0x200000 & 0x600000
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* referred to as system 1 & system 2 respectively.
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* a kernel is considered suitable for handing control over
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* if its linux magic number exists & uImage CRC are correct.
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* If either of those conditions fail, a matching sys'n'_fail flag
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* is set in uboot env & a restart performed in the hope that the
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* alternate kernel is okay.
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* if neither kernel checksums ok and both are marked failed, system 2
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* is booted anyway.
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*
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* Note uboot's tftp flash install writes the transferred
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* image to both kernel partitions.
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*/
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/* We keep stock xiaomi firmware (kernel0) here */
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partition@200000 {
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label = "kernel_stock";
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reg = <0x200000 0x400000>;
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};
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partition@600000 {
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label = "kernel";
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reg = <0x600000 0x400000>;
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};
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/* ubi partition is the result of squashing
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* next consecutive stock partitions:
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* - rootfs0 (rootfs partition for stock kernel0),
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* - rootfs1 (rootfs partition for stock failsafe kernel1),
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* - overlay (used as ubi overlay in stock fw)
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* resulting 117,5MiB space for packages.
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*/
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partition@a00000 {
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label = "ubi";
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reg = <0xa00000 0x7580000>;
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};
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};
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};
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