Commit e6e2c15d authored by Thomas Chou's avatar Thomas Chou

nios2: enable device tree control of U-Boot

This patch adds device tree control of U-Boot to nios2 boards.
The example dts is taken from Linux kernel.
Signed-off-by: default avatarThomas Chou <thomas@wytron.com.tw>
Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
Acked-by: default avatarMarek Vasut <marex@denx.de>
parent 1226dfda
/*
* Copyright (C) 2013 Altera Corporation
*
* This file is generated by sopc2dts.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/dts-v1/;
/ {
model = "altr,qsys_ghrd_3c120";
compatible = "altr,qsys_ghrd_3c120";
#address-cells = <1>;
#size-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu: cpu@0x0 {
device_type = "cpu";
compatible = "altr,nios2-1.0";
reg = <0x00000000>;
interrupt-controller;
#interrupt-cells = <1>;
clock-frequency = <125000000>;
dcache-line-size = <32>;
icache-line-size = <32>;
dcache-size = <32768>;
icache-size = <32768>;
altr,implementation = "fast";
altr,pid-num-bits = <8>;
altr,tlb-num-ways = <16>;
altr,tlb-num-entries = <128>;
altr,tlb-ptr-sz = <7>;
altr,has-div = <1>;
altr,has-mul = <1>;
altr,reset-addr = <0xc2800000>;
altr,fast-tlb-miss-addr = <0xc7fff400>;
altr,exception-addr = <0xd0000020>;
altr,has-initda = <1>;
altr,has-mmu = <1>;
};
};
memory@0 {
device_type = "memory";
reg = <0x10000000 0x08000000>,
<0x07fff400 0x00000400>;
};
sopc@0 {
device_type = "soc";
ranges;
#address-cells = <1>;
#size-cells = <1>;
compatible = "altr,avalon", "simple-bus";
bus-frequency = <125000000>;
pb_cpu_to_io: bridge@0x8000000 {
compatible = "simple-bus";
reg = <0x08000000 0x00800000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x00002000 0x08002000 0x00002000>,
<0x00004000 0x08004000 0x00000400>,
<0x00004400 0x08004400 0x00000040>,
<0x00004800 0x08004800 0x00000040>,
<0x00004c80 0x08004c80 0x00000020>,
<0x00004d50 0x08004d50 0x00000008>,
<0x00008000 0x08008000 0x00000020>,
<0x00400000 0x08400000 0x00000020>;
timer_1ms: timer@0x400000 {
compatible = "altr,timer-1.0";
reg = <0x00400000 0x00000020>;
interrupt-parent = <&cpu>;
interrupts = <11>;
clock-frequency = <125000000>;
};
timer_0: timer@0x8000 {
compatible = "altr,timer-1.0";
reg = < 0x00008000 0x00000020 >;
interrupt-parent = < &cpu >;
interrupts = < 5 >;
clock-frequency = < 125000000 >;
};
jtag_uart: serial@0x4d50 {
compatible = "altr,juart-1.0";
reg = <0x00004d50 0x00000008>;
interrupt-parent = <&cpu>;
interrupts = <1>;
};
tse_mac: ethernet@0x4000 {
compatible = "altr,tse-1.0";
reg = <0x00004000 0x00000400>,
<0x00004400 0x00000040>,
<0x00004800 0x00000040>,
<0x00002000 0x00002000>;
reg-names = "control_port", "rx_csr", "tx_csr", "s1";
interrupt-parent = <&cpu>;
interrupts = <2 3>;
interrupt-names = "rx_irq", "tx_irq";
rx-fifo-depth = <8192>;
tx-fifo-depth = <8192>;
max-frame-size = <1518>;
local-mac-address = [ 00 00 00 00 00 00 ];
phy-mode = "rgmii-id";
phy-handle = <&phy0>;
tse_mac_mdio: mdio {
compatible = "altr,tse-mdio";
#address-cells = <1>;
#size-cells = <0>;
phy0: ethernet-phy@18 {
reg = <18>;
device_type = "ethernet-phy";
};
};
};
uart: serial@0x4c80 {
compatible = "altr,uart-1.0";
reg = <0x00004c80 0x00000020>;
interrupt-parent = <&cpu>;
interrupts = <10>;
current-speed = <115200>;
clock-frequency = <62500000>;
};
};
cfi_flash_64m: flash@0x0 {
compatible = "cfi-flash";
reg = <0x00000000 0x04000000>;
bank-width = <2>;
device-width = <1>;
#address-cells = <1>;
#size-cells = <1>;
partition@800000 {
reg = <0x00800000 0x01e00000>;
label = "JFFS2 Filesystem";
};
};
};
chosen {
bootargs = "debug console=ttyJ0,115200";
};
};
dtb-y += $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%).dtb
targets += $(dtb-y)
DTC_FLAGS += -R 4 -p 0x1000
PHONY += dtbs
dtbs: $(addprefix $(obj)/, $(dtb-y))
@:
clean-files := *.dtb
../../../../include/dt-bindings
\ No newline at end of file
CONFIG_NIOS2=y
CONFIG_TARGET_NIOS2_GENERIC=y
CONFIG_DEFAULT_DEVICE_TREE="3c120_devboard"
CONFIG_HUSH_PARSER=y
# CONFIG_CMD_BOOTD is not set
# CONFIG_CMD_IMLS is not set
......@@ -10,4 +11,5 @@ CONFIG_HUSH_PARSER=y
CONFIG_CMD_DHCP=y
# CONFIG_CMD_NFS is not set
CONFIG_CMD_PING=y
CONFIG_OF_CONTROL=y
CONFIG_NET_RANDOM_ETHADDR=y
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