difos/target/linux/ipq40xx/files-4.19/arch/arm/boot/dts/qcom-ipq4019-unielec-u4019-32m.dts
Kristian Evensen 6f6c00cfc9 ipq40xx: Add support for Unielec U4019
This commit adds support for the 32MB storage/512MB RAM version of the U4019
IPQ4019-based board from Unielec. The board has the following specifications:

* Qualcomm IPQ4019 (running at 717MHz)
* 512MB DDR3 RAM (optional 256MB/1GB)
* 32MB SPI NOR (optional 8/16MB or NAND)
* Five gigabit ports (Qualcomm QCA8075)
* 1x 2.4 GHz wifi (QCA4019 hw1.0)
* 1x 5 Ghz wifi (QCA4019 hw1.0)
* 1x mini-PCIe slot (only USB-pins connected)
* 1x SIM slot (mini-SIM)
* 1x USB2.0 port
* 1x button
* 1x controllable LED
* 1x micro SD-card reader

Working:
* Ethernet
* Wifi
* USB-port
* mini-PCIe slot + SIM slot
* Button
* Sysupgrade

Not working:
* SD card slot (no upstream support)

Installation instructions:

In order to install OpenWRT on the U4019, you need to go via the
initramfs-image. The installation steps are as follows:

* Connect to board via serial (header exposed and clearly marked).
* Interrupt bootloader by pressing a button.
* Copy the initramfs-image to your tftp folder, call the file C0A80079.img.
* Give the network interface connected to the U4019 the address
192.168.0.156/24.
* Start your tftp-server and run tftpboot on the board.
* Run bootm when the file has been transferred, to boot OpenWRT.
* Once OpenWRT has booted, copy the sysupgrade-image to the device and run
sysupgrade to install OpenWRT on the U4019.

Notes:

- Since IPQ4019 has been moved to 4.19, I have not added support for kernel
4.14.

- There is a bug with hardware encryption on IPQ4019, causing poor performance
with TCP and ipsec (see for example FS#2355). In order to improve performance,
I have disabled hardware encryption in the DTS. We can enable hw. enc. once/if
bug is fixed.

- In order for Ethernet to work, the phy has to be reset by setting gpio 47
low/high. Adding support for phy reset via gpio required patching the
mdio-driver, and the code added comes from the vendor driver. I do not know if
patching the driver is an acceptable approach or not.

v1->v2:
* Do not use wildcard as identifier in the board.d-scripts (thanks
Adrian Schmutzler).

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
2019-10-21 12:28:03 +02:00

79 lines
1.5 KiB
Text

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;
#include "qcom-ipq4019-unielec-u4019.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
model = "Unielec U4019 (32M)";
compatible = "unielec,u4019-32m","unielec,u4019","qcom,ipq4019";
};
&blsp1_spi1 {
pinctrl-0 = <&spi_0_pins>;
pinctrl-names = "default";
status = "okay";
cs-gpios = <&tlmm 12 GPIO_ACTIVE_LOW>;
flash@0 {
reg = <0>;
compatible = "jedec,spi-nor";
spi-max-frequency = <24000000>;
broken-flash-reset;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "0:SBL1";
reg = <0x0 0x40000>;
read-only;
};
partition@40000 {
label = "0:MIBIB";
reg = <0x40000 0x20000>;
read-only;
};
partition@60000 {
label = "0:QSEE";
reg = <0x60000 0x60000>;
read-only;
};
partition@c0000 {
label = "0:CDT";
reg = <0xc0000 0x10000>;
read-only;
};
partition@d0000 {
label = "0:DDRPARAMS";
reg = <0xd0000 0x10000>;
read-only;
};
partition@e0000 {
label = "0:APPSBLENV";
reg = <0xe0000 0x10000>;
read-only;
};
partition@f0000 {
label = "0:APPSBL";
reg = <0xf0000 0x80000>;
read-only;
};
partition@170000 {
label = "0:ART";
reg = <0x170000 0x10000>;
read-only;
};
partition@180000 {
compatible = "denx,fit";
label = "firmware";
reg = <0x180000 0x1e80000>;
};
};
};
};