ramips: add support for HiLink HLK-7621A evaluation board

Specifications:
- SoC: MediaTek MT7621AT
- RAM: 256 MB (DDR3)
- Flash: 32 MB SPI NOR 44MHz
- Switch: 1 WAN, 4 LAN (Gigabit)
- LEDs: 1 WAN, 4 LAN (controlled by PHY)
- USB Ports: 1 x USB2, 1 x USB3
- WLAN: 1 x 2.4, 5 GHz 866Mbps (MT7612E)
- Button: 1 button (reset)
- UART Serial: UART1 as console : 57600 baud
- Power: 12VDC, 1A

Installation:
Update openWRT firmware using internal GNUBEE uboot:
https://github.com/gnubee-git/GnuBee-MT7621-uboot

By HTTP: Initial uboot address is http://10.10.10.123, your address
needs to be 10.10.10.x, and mask 255.255.255.0.
By TFTP: Uboot is in client mode, the address of the firmware must
be tftp://10.10.10.3/uboot.bin

Recovery:
Manufacturer provides MTK OpenWrt 14.07 source code, compile then
flash it by uboot.
HLK-7621A is a stamp hole package module for embedded development,
users have to design IO boards to use it.

MAC addresses:
- u-boot-env contains a placeholder address:
  > mtd_get_mac_ascii u-boot-env ethaddr
  03:17:73:ab:cd:ef
- phy0 gets a valid-looking address:
  > cat /sys/class/ieee80211/phy0/macaddress
  f8:62:aa:**:**:a8
- Calibration data for &pcie2 contains a valid address, however the
  zeros in the right half look like it's not real:
  8c:88:2b:00:00:1b
- Since it's an evaluation board and there is no solid information
  about the MAC address assignment, the ethernet MAC address is left random.

Signed-off-by: Chen Yijun <cyjason@bupt.edu.cn>
[add keys and pcie nodes to properly support evaluation board]
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
[remove ethernet address, wrap lines properly]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

diff --git a/target/linux/ramips/dts/mt7621_hilink_hlk-7621a-evb.dts b/target/linux/ramips/dts/mt7621_hilink_hlk-7621a-evb.dts
new file mode 100644 (file)
index 0000000..4b807fc
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_hilink_hlk-7621a-evb.dts
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+       compatible = "hilink,hlk-7621a-evb", "mediatek,mt7621-soc";
+       model = "HiLink HLK-7621A evaluation board";
+
+       keys {
+               compatible = "gpio-keys";
+
+               reset {
+                       label = "reset";
+                       gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
+                       linux,code = <KEY_RESTART>;
+               };
+       };
+};
+
+&spi0 {
+       status = "okay";
+
+       flash@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <44000000>;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               label = "u-boot";
+                               reg = <0x0 0x30000>;
+                               read-only;
+                       };
+
+                       partition@30000 {
+                               label = "u-boot-env";
+                               reg = <0x30000 0x10000>;
+                               read-only;
+                       };
+
+                       factory: partition@40000 {
+                               label = "factory";
+                               reg = <0x40000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@50000 {
+                               compatible = "denx,uimage";
+                               label = "firmware";
+                               reg = <0x50000 0x1fb0000>;
+                       };
+               };
+       };
+};
+
+&switch0 {
+       ports {
+               port@0 {
+                       status = "okay";
+                       label = "lan1";
+               };
+
+               port@1 {
+                       status = "okay";
+                       label = "lan2";
+               };
+
+               port@2 {
+                       status = "okay";
+                       label = "lan3";
+               };
+
+               port@3 {
+                       status = "okay";
+                       label = "lan4";
+               };
+
+               port@4 {
+                       status = "okay";
+                       label = "wan";
+               };
+       };
+};
+
+&pcie {
+       status = "okay";
+};
+
+&pcie2 {
+       wifi@0,0 {
+               compatible = "mediatek,mt76";
+               reg = <0x0000 0 0 0 0>;
+               mediatek,mtd-eeprom = <&factory 0x8000>;
+       };
+};
+
+&state_default {
+       gpio {
+               groups = "wdt";
+               function = "gpio";
+       };
+};

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index a0236234d19371a79904b31d5df5857a10b77e75..3b68a76b3e1236f0e2fa05b44c49dae5486541aa 100644 (file)
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -610,6 +610,16 @@ define Device/gnubee_gb-pc2
 endef
 TARGET_DEVICES += gnubee_gb-pc2
 
+define Device/hilink_hlk-7621a-evb
+  $(Device/dsa-migration)
+  $(Device/uimage-lzma-loader)
+  DEVICE_VENDOR := HiLink
+  DEVICE_MODEL := HLK-7621A evaluation board
+  DEVICE_PACKAGES += kmod-mt76x2 kmod-usb3
+  IMAGE_SIZE := 32448k
+endef
+TARGET_DEVICES += hilink_hlk-7621a-evb
+
 define Device/hiwifi_hc5962
   $(Device/dsa-migration)
   BLOCKSIZE := 128k