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riscv: nx25: dts: Add AE250 dts to support RISC-V

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AE250 is the Soc using NX25 cpu core base on RISC-V arch.
Details please see the doc/README.ae250.

Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
This commit is contained in:
Rick Chen 2017-12-26 13:55:50 +08:00 committed by Tom Rini
parent 8bbb2909cb
commit 039ed7c572
2 changed files with 110 additions and 0 deletions
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14
arch/riscv/dts/Makefile Normal file
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@ -0,0 +1,14 @@
#
# SPDX-License-Identifier: GPL-2.0+
#
dtb-$(CONFIG_TARGET_NX25_AE250) += ae250.dtb
targets += $(dtb-y)
DTC_FLAGS += -R 4 -p 0x1000
PHONY += dtbs
dtbs: $(addprefix $(obj)/, $(dtb-y))
@:
clean-files := *.dtb

96
arch/riscv/dts/ae250.dts Normal file
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/dts-v1/;
/ {
compatible = "riscv32 nx25";
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&intc>;
aliases {
uart0 = &serial0;
ethernet0 = &mac0;
spi0 = &spi;
} ;
chosen {
bootargs = "console=ttyS0,38400n8 earlyprintk=uart8250-32bit,0xf0300000 debug loglevel=7";
stdout-path = "uart0:38400n8";
tick-timer = &timer0;
};
memory@0 {
device_type = "memory";
reg = <0x00000000 0x40000000>;
};
spiclk: virt_100mhz {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <100000000>;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
compatible = "andestech,n13";
reg = <0>;
/* FIXME: to fill correct frqeuency */
clock-frequency = <60000000>;
};
};
intc: interrupt-controller {
compatible = "andestech,atnointc010";
#interrupt-cells = <1>;
interrupt-controller;
};
serial0: serial@f0300000 {
compatible = "andestech,uart16550", "ns16550a";
reg = <0xf0300000 0x1000>;
interrupts = <7 4>;
clock-frequency = <19660800>;
reg-shift = <2>;
reg-offset = <32>;
no-loopback-test = <1>;
};
timer0: timer@f0400000 {
compatible = "andestech,atcpit100";
reg = <0xf0400000 0x1000>;
interrupts = <2 4>;
clock-frequency = <40000000>;
};
mac0: mac@e0100000 {
compatible = "andestech,atmac100";
reg = <0xe0100000 0x1000>;
interrupts = <25 4>;
};
mmc0: mmc@f0e00000 {
compatible = "andestech,atsdc010";
max-frequency = <100000000>;
fifo-depth = <0x10>;
reg = <0xf0e00000 0x1000>;
interrupts = <17 4>;
};
spi: spi@f0b00000 {
compatible = "andestech,atcspi200";
reg = <0xf0b00000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
num-cs = <1>;
clocks = <&spiclk>;
interrupts = <3 4>;
flash@0 {
compatible = "spi-flash";
spi-max-frequency = <50000000>;
reg = <0>;
spi-cpol;
spi-cpha;
};
};
};