ramips: add support for Skylab SKW92A in EVB

Specifically, SKW92A_E16, described here:

  http://www.skylabmodule.com/wp-content/uploads/SkyLab_SKW92A_V1.04_datasheet.pdf

Specification:
- MediaTek MT7628N/N (580 Mhz)
- 64 MB of RAM
- 16 MB of FLASH
- 2T2R 2.4 GHz
- 5x 10/100 Mbps Ethernet
- 2x u.FL
- Power by micro-USB connector at USB1 on EVB
- UART via micro-USB connector at USB3 on EVB (57600 8n1)
- 5x Ethernet LEDs
- 1x WLAN LEDs
- 1x WPS LED connected by jumper wire from I2S_CK on J20 to WPS_LED pin hole next
  to daughter board on EVB
- WPS/Reset button (S2 on EVB)
- RESET button (S1 on EVB) is *not* connected to RST hole next to daughter board

Flash instruction:

>From Skylab firmware:

1. Associate with SKYLAP_AP
2. In a browser, load: http://10.10.10.254/
3. Username/password: admin/admin
4. In web admin interface: Administration / Upload Firmware, browse to
   sysupgrade image, apply, flash will fail with a message:
   Not a valid firmware. *** Warning: "/var/tmpFW" has corrupted data!
5. Telnet to 10.10.10.254, drops you into a root shell with no credentials
6. # cd /var
7. # mtd_write -r write tmpFW mtd4
   Unlocking mtd4 ...
   Writing from tmpFW to mtd4 ... [e]
8. When flash has completed, you will have booted into your firmware.

>From U-boot via TFTP and initramfs:

1. Place openwrt-ramips-mt76x8-skw92a-initramfs-kernel.bin on a TFTP server
2. Connect to serial console at USB3 on EVB
3. Connect ethernet between port 1 (not WAN) and your TFTP server (e.g.
   192.168.11.20)
4. Start terminal software (e.g. screen /dev/ttyUSB0 57600) on PC
5. Apply power to EVB
6. Interrupt u-boot with keypress of "1"
7. At u-boot prompts:
   Input device IP (10.10.10.123) ==:192.168.11.21
   Input server IP (10.10.10.3) ==:192.168.11.20
   Input Linux Kernel filename (root_uImage) ==:openwrt-ramips-mt76x8-skw92a-initramfs-kernel.bin
8. Move ethernet to port 0 (WAN) on EVB
9. At new OpenWrt console shell, fetch squashfs-sysupgrade image and flash
   with sysupgrade.

>From U-boot via TFTP direct flash:

1. Place openwrt-ramips-mt76x8-skw92a-squashfs-sysupgrade.bin on a TFTP server
2. Connect to serial console at USB3 on EVB (57600 8N1)
3. Connect ethernet between port 1 (not WAN) an your TFTP server (e.g.
   192.168.11.20)
4. Start terminal software (e.g. screen /dev/ttyUSB0 57600) on PC
5. Apply power to EVB
6. Interrupt u-boot with keypress of "2"
7. At u-boot prompts:
   Warning!! Erase Linux in Flash then burn new one. Are you sure?(Y/N) Y
   Input device IP (10.10.10.123) ==:192.168.11.21
   Input server IP (10.10.10.3) ==:192.168.11.20
   Input Linux Kernel filename (root_uImage) ==:openwrt-ramips-mt76x8-skw92a-squashfs-sysupgrade.bin
8. When transfer is complete or as OpenWrt begins booting, move ethernet to
   port 0 (WAN).

Signed-off-by: Russell Senior <russell@personaltelco.net>

diff --git a/target/linux/ramips/base-files/etc/board.d/01_leds b/target/linux/ramips/base-files/etc/board.d/01_leds
index 2644bc0159f8f61a5783e2a4f046857367ec465d..825a65b1d1eb0377a339cdb4954a9128eadee557 100755 (executable)
--- a/target/linux/ramips/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/base-files/etc/board.d/01_leds
@@ -283,6 +283,9 @@ rt-n14u)
        ucidef_set_led_netdev "wan" "wan" "$boardname:blue:wan" eth0.2
        set_wifi_led "$boardname:blue:air"
        ;;
+skw92a)
+       set_wifi_led "$boardname:green:wlan"
+       ;;
 tama,w06)
        ucidef_set_led_netdev "wan" "WAN" "$boardname:green:wan" "eth0"
        ucidef_set_led_wlan "wlan" "WLAN" "$boardname:green:wlan" "phy0tpt"

diff --git a/target/linux/ramips/base-files/etc/board.d/02_network b/target/linux/ramips/base-files/etc/board.d/02_network
index 9e9ecbcb51df9aa93f84447ff6963ba52f40be80..ac9f368419cdbe2f083430f6880d3823e8767eb0 100755 (executable)
--- a/target/linux/ramips/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/base-files/etc/board.d/02_network
@@ -345,6 +345,10 @@ ramips_setup_interfaces()
                ucidef_add_switch "switch0" \
                        "0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "8@eth0"
                ;;
+       skw92a)
+               ucidef_add_switch "switch0" \
+                       "1:lan" "2:lan" "3:lan" "4:lan" "0:wan" "6@eth0"
+               ;;
        tew-638apb-v2)
                ucidef_add_switch "switch0" \
                        "4:lan" "6@eth0"
@@ -554,6 +558,10 @@ ramips_setup_macs()
                lan_mac=$(macaddr_setbit_la "$lan_mac")
                wan_mac=$(mtd_get_mac_binary factory 32772)
                ;;
+       skw92a)
+               lan_mac=$(mtd_get_mac_binary factory 40)
+               wan_mac=$(mtd_get_mac_binary factory 46)
+               ;;
        tew-691gr)
                wan_mac=$(macaddr_add "$(mtd_get_mac_binary factory 4)" 3)
                ;;

diff --git a/target/linux/ramips/base-files/lib/ramips.sh b/target/linux/ramips/base-files/lib/ramips.sh
index 5741cbd2ee13f309dc5cc93f1d48f5a97e0da970..249533f06eec6f6fb398bb56fbe0405a2b8b62f4 100755 (executable)
--- a/target/linux/ramips/base-files/lib/ramips.sh
+++ b/target/linux/ramips/base-files/lib/ramips.sh
@@ -472,6 +472,9 @@ ramips_board_detect() {
        *"SAP-G3200U3")
                name="sap-g3200u3"
                ;;
+       *"SKW92A")
+               name="skw92a"
+               ;;
        *"SL-R7205"*)
                name="sl-r7205"
                ;;

diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
index 7558b4e3168ab62de39ad7fd1ba15e54a7876c9d..7fb17743cdcd06fe24fb7c426dde2d81bf4d1d17 100755 (executable)
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/base-files/lib/upgrade/platform.sh
@@ -151,6 +151,7 @@ platform_check_image() {
        rut5xx|\
        sap-g3200u3|\
        sk-wb8|\
+       skw92a|\
        sl-r7205|\
        tama,w06|\
        tew-638apb-v2|\

diff --git a/target/linux/ramips/dts/SKW92A.dts b/target/linux/ramips/dts/SKW92A.dts
new file mode 100644 (file)
index 0000000..c43f9e5
--- /dev/null
+++ b/target/linux/ramips/dts/SKW92A.dts
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include "mt7628an.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/{
+       compatible = "skylab,skw92a", "mediatek,mt7628an-soc";
+       model = "SKW92A";
+
+       aliases {
+               led-boot = &led_power;
+               led-failsafe = &led_power;
+               led-running = &led_power;
+               led-upgrade = &led_power;
+       };
+
+       chosen {
+               bootargs = "console=ttyS0,57600";
+       };
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x0 0x4000000>;
+       };
+
+       gpio-leds {
+               compatible = "gpio-leds";
+
+               led_power: wps {
+                       label = "skw92:green:wps";
+                       gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       gpio-keys {
+               compatible = "gpio-keys-polled";
+               poll-interval = <20>;
+
+               reset {
+                       label = "reset";
+                       gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_RESTART>;
+               };
+
+       };
+};
+
+&pinctrl {
+       state_default: pinctrl0 {
+               gpio {
+                       ralink,group = "wdt", "refclk", "gpio";
+                       ralink,function = "gpio";
+               };
+       };
+};
+
+&ethernet {
+       mtd-mac-address = <&factory 0x28>;
+};
+
+&wmac {
+       status = "okay";
+       ralink,mtd-eeprom = <&factory 0x0>;
+};
+
+&spi0 {
+       status = "okay";
+
+       m25p80@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <10000000>;
+               m25p,chunked-io = <32>;
+
+               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 {
+                               label = "firmware";
+                               reg = <0x50000 0xfb0000>;
+                               compatible = "denx,uimage";
+                       };
+               };
+       };
+};
+
+&uart1 {
+       status = "okay";
+};
+
+&ehci {
+       status = "okay";
+};
+
+&ohci {
+       status = "okay";
+};

diff --git a/target/linux/ramips/image/mt76x8.mk b/target/linux/ramips/image/mt76x8.mk
index 6bedb4f7d420576227e4ea937765681fc77582f7..5f40262e843c1b421a92435ea583f8c662a41c1d 100644 (file)
--- a/target/linux/ramips/image/mt76x8.mk
+++ b/target/linux/ramips/image/mt76x8.mk
@@ -150,6 +150,14 @@ define Device/pbr-d1
 endef
 TARGET_DEVICES += pbr-d1
 
+define Device/skw92a
+  DTS := SKW92A
+  IMAGE_SIZE := 16064k
+  DEVICE_TITLE := Skylab SKW92A
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ohci
+endef
+TARGET_DEVICES += skw92a
+
 define Device/tplink_tl-wa801nd-v5
   $(Device/tplink)
   DTS := TL-WA801NDV5