openwrt/target/linux/airoha/dts/en7523.dtsi
Daniel Danzberger f32085fc0b airoha: Add new target platform
Airoha is a new ARM platform based on Cortex-A53 which has recently been
merged into linux-next.

Due to BootROM limitations on this platform, the Cortex-A53 can't run in
Aarch64 mode and code must be compiled for 32-Bit ARM.

This support is based mostly on those linux-next commits backported
for kernel 5.15.

Patches:
1 - platform support = linux-next
2 - clock driver = linux-next
3 - gpio driver = linux-next
4 - linux,usable-memory-range dts support = linux-next
5 - mtd spinand driver
6 - spi driver
7 - pci driver (kconfig only, uses mediatek PCI) = linux-next

Still missing:
- Ethernet driver
- Sysupgrade support

A.t.m there exists one subtarget EN7523 with only one evaluation
board.

The initramfs can be run with the following commands from u-boot:
-
u-boot> setenv bootfile \
	openwrt-airoha-airoha_en7523-evb-initramfs-kernel.bin
u-boot> tftpboot
u-boot> bootm 0x81800000
-

Signed-off-by: Daniel Danzberger <daniel@dd-wrt.com>
2022-09-05 11:12:32 +02:00

220 lines
4.6 KiB
Plaintext

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/clock/en7523-clk.h>
/ {
interrupt-parent = <&gic>;
#address-cells = <1>;
#size-cells = <1>;
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
ranges;
npu_binary@84000000 {
no-map;
reg = <0x84000000 0xA00000>;
};
npu_flag@84B0000 {
no-map;
reg = <0x84B00000 0x100000>;
};
npu_pkt@85000000 {
no-map;
reg = <0x85000000 0x1A00000>;
};
npu_phyaddr@86B00000 {
no-map;
reg = <0x86B00000 0x100000>;
};
npu_rxdesc@86D00000 {
no-map;
reg = <0x86D00000 0x100000>;
};
};
psci {
compatible = "arm,psci-0.2";
method = "smc";
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu-map {
cluster0 {
core0 {
cpu = <&cpu0>;
};
core1 {
cpu = <&cpu1>;
};
};
};
cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x0>;
enable-method = "psci";
clock-frequency = <80000000>;
next-level-cache = <&L2_0>;
};
cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x1>;
enable-method = "psci";
clock-frequency = <80000000>;
next-level-cache = <&L2_0>;
};
L2_0: l2-cache0 {
compatible = "cache";
};
};
scu: system-controller@1fa20000 {
compatible = "airoha,en7523-scu";
reg = <0x1fa20000 0x400>,
<0x1fb00000 0x1000>;
#clock-cells = <1>;
};
gic: interrupt-controller@9000000 {
compatible = "arm,gic-v3";
interrupt-controller;
#interrupt-cells = <3>;
#address-cells = <1>;
#size-cells = <1>;
reg = <0x09000000 0x20000>,
<0x09080000 0x80000>,
<0x09400000 0x2000>,
<0x09500000 0x2000>,
<0x09600000 0x20000>;
interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
};
timer {
compatible = "arm,armv8-timer";
interrupt-parent = <&gic>;
interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
<GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
<GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
<GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
};
uart1: serial@1fbf0000 {
compatible = "ns16550";
reg = <0x1fbf0000 0x30>;
reg-io-width = <4>;
reg-shift = <2>;
interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
clock-frequency = <1843200>;
status = "okay";
};
gpio0: gpio@1fbf0200 {
compatible = "airoha,en7523-gpio";
reg = <0x1fbf0204 0x4>,
<0x1fbf0200 0x4>,
<0x1fbf0220 0x4>,
<0x1fbf0214 0x4>;
gpio-controller;
#gpio-cells = <2>;
};
gpio1: gpio@1fbf0270 {
compatible = "airoha,en7523-gpio";
reg = <0x1fbf0270 0x4>,
<0x1fbf0260 0x4>,
<0x1fbf0264 0x4>,
<0x1fbf0278 0x4>;
gpio-controller;
#gpio-cells = <2>;
};
pcie0: pcie@1fa91000 {
compatible = "airoha,en7523-pcie", "mediatek,mt7622-pcie";
device_type = "pci";
reg = <0x1fa91000 0x1000>;
reg-names = "port0";
linux,pci-domain = <0>;
#address-cells = <3>;
#size-cells = <2>;
interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "pcie_irq";
clocks = <&scu EN7523_CLK_PCIE>;
clock-names = "sys_ck0";
bus-range = <0x00 0xff>;
ranges = <0x82000000 0 0x20000000 0x20000000 0 0x8000000>;
status = "disabled";
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0 0 0 1 &pcie_intc0 0>,
<0 0 0 2 &pcie_intc0 1>,
<0 0 0 3 &pcie_intc0 2>,
<0 0 0 4 &pcie_intc0 3>;
pcie_intc0: interrupt-controller {
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <1>;
};
};
pcie1: pcie@1fa92000 {
compatible = "airoha,en7523-pcie", "mediatek,mt7622-pcie";
device_type = "pci";
reg = <0x1fa92000 0x1000>;
reg-names = "port1";
linux,pci-domain = <1>;
#address-cells = <3>;
#size-cells = <2>;
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "pcie_irq";
clocks = <&scu EN7523_CLK_PCIE>;
clock-names = "sys_ck1";
bus-range = <0x00 0xff>;
ranges = <0x82000000 0 0x28000000 0x28000000 0 0x8000000>;
status = "disabled";
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0 0 0 1 &pcie_intc1 0>,
<0 0 0 2 &pcie_intc1 1>,
<0 0 0 3 &pcie_intc1 2>,
<0 0 0 4 &pcie_intc1 3>;
pcie_intc1: interrupt-controller {
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <1>;
};
};
spi_ctrl: spi_controller@1fa10000 {
compatible = "airoha,en7523-spi";
reg = <0x1fa10000 0x140>;
#address-cells = <1>;
#size-cells = <0>;
spi-rx-bus-width = <2>;
spi-tx-bus-width = <2>;
nand: nand@0 {
compatible = "spi-nand";
reg = <0>;
nand-ecc-engine = <&nand>;
};
};
};