openwrt-6.x/target/linux
Piotr Dymacz dfecf94c20 ramips: add support for ALFA Network R36M-E4G
ALFA Network R36M-E4G is a dual-SIM, N300 Wi-Fi, compact size platform
based on MediaTek MT7620A WiSoC. This product is designed for operation
with 4G modem (can be bought in bundle with Quectel EC25, EG25 or EP06)
but supports also Wi-Fi modules (miniPCIe slot has USB and PCIe buses).

Specification:

- MT7620A (580 MHz)
- 64/128/256 MB of RAM (DDR2)
- 16/32+ MB of FLASH (SPI NOR)
- 2x 10/100 Mbps Ethernet, with passive PoE support (24 V)
- 2T2R 2.4 GHz (MT7620A), with ext. LNA (RFFM4227)
- 1x miniPCIe slot (with PCIe and USB 2.0 buses and optional 5 V)
- 2x SIM slot (mini, micro) with detect and switch driven by GPIO
- 2x u.fl antenna connectors (for Wi-Fi)
- 8x LED (7 driven by GPIO)
- 2x button (reset, wifi)
- 2x UART (4-pin/2.54 mm pitch, 10-pin/1.27 mm pitch) headers on PCB
- 1x I2C (4-pin, 1.27 mm pitch) header on PCB
- 1x LED (8-pin, 1.27 mm pitch) header on PCB
- 1x DC jack with lock (12 V)

Other:

- there is a dedicated, 4-pin connector for optional RTC module (Holtek
  HT138x) with 'enable' input, not available at the time of preparing
  support for this board
- miniPCIe slot supports additional 5 V supply on pins 47 and 49 but a
  jumper resistor (R174) is not installed by default
- U-Boot selects default SIM slot, based on value of 'default_sim' env
  variable: '1' or unset -> SIM1 (mini), '2' -> SIM2 (micro). This will
  work only if both slots are occupied, otherwise U-Boot will always
  select slot with SIM card inside (user can override it later, in
  user-space)
- U-Boot resets the modem, using PERSTn signal, before starting kernel
- this board supports 'dual image' feature (controlled by 'dual_image'
  U-Boot environment variable)

Flash instruction:

You can use the 'sysupgrade' image directly in vendor firmware which is
based on OpenWrt (make sure to not preserve settings - use 'sysupgrade
-n -F ...' command). Alternatively, use web recovery mode in U-Boot:

1. Power the device with reset button pressed, the modem LED will start
   blinking slowly and after ~3 seconds, when it starts blinking faster,
   you can release the button.
2. Setup static IP 192.168.1.2/24 on your PC.
3. Go to 192.168.1.1 in browser and upload 'sysupgrade' image.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
2019-11-13 21:45:31 +01:00
..
apm821xx treewide: move MAC address patch functions to common library 2019-10-14 12:36:02 +02:00
ar7 kernel: bump 4.9 to 4.9.194 2019-09-24 12:52:05 +02:00
ar71xx ar71xx: fix MAC addresses for Archer C5 v1, C7 v1/v2, WDR4900 v2 2019-11-13 15:12:32 +01:00
arc770 treewide: remove kmod-usb-core from DEVICE_PACKAGES 2019-10-06 21:28:49 +02:00
archs38 treewide: remove kmod-usb-core from DEVICE_PACKAGES 2019-10-06 21:28:49 +02:00
armvirt
at91 at91: split up remaining DEVICE_TITLE definitions 2019-10-19 13:16:57 +02:00
ath25 ath25: split up DEVICE_TITLE 2019-10-19 13:16:57 +02:00
ath79 ath79: read label MAC address from flash instead of using phy0/phy1 2019-11-13 12:55:25 +01:00
bcm53xx bcm53xx: sysupgrade: support Luxul NAND devices 2019-10-15 20:23:04 +02:00
brcm47xx kernel: bump 4.19 to 4.19.81 2019-10-31 09:17:14 +01:00
brcm63xx brcm63xx: add linux 4.19 support 2019-11-09 13:16:01 +01:00
brcm2708 kernel: bump 4.19 to 4.19.82 2019-11-12 10:15:01 +01:00
cns3xxx treewide: sysupgrade: don't use $ARGV in platform_do_upgrade() 2019-07-17 08:05:38 +02:00
gemini treewide: remove kmod-usb-core from DEVICE_PACKAGES 2019-10-06 21:28:49 +02:00
generic kernel: bump 4.19 to 4.19.82 2019-11-12 10:15:01 +01:00
imx6 imx6: install-dtb as separate IMAGE 2019-09-15 15:00:17 +00:00
ipq40xx ipq40xx: u4019: use reset-gpios instead of phy-reset-gpio 2019-11-07 22:51:37 +01:00
ipq806x Revert "ipq806x: fix EA8500 switch control" 2019-11-06 00:21:15 +01:00
ixp4xx treewide: remove kmod-usb-core from DEVICE_PACKAGES 2019-10-06 21:28:49 +02:00
kirkwood kirkwood: Fix FS#505 - Can't install LEDE on Linksys EA3500 2019-10-12 23:42:59 +02:00
lantiq lantiq: remove redundant WiFi LED on FRITZ!Box 7320 2019-11-11 18:17:29 +01:00
layerscape kernel: bump 4.14 to 4.14.152 2019-11-12 10:15:01 +01:00
malta
mediatek kernel: bump 4.19 to 4.19.82 2019-11-12 10:15:01 +01:00
mpc85xx mpc85xx: correct TP-LINK TL-WDR4900 MAC addresses 2019-10-15 18:13:54 +02:00
mvebu x86,tegra,mvebu: image: use common reproducible IMG_PART_SIGNATURE 2019-11-11 16:37:13 +01:00
mxs mxs: start a console on USB gadget serial ports 2019-11-09 12:56:34 +01:00
octeon octeon: split up remaining DEVICE_TITLE 2019-10-19 13:16:57 +02:00
octeontx octeontx: fix thunderx BGX underflow irq name 2019-10-27 12:13:59 +01:00
omap omap: split up DEVICE_TITLE 2019-10-12 01:22:46 +02:00
orion orion: replace backticks by $(...) 2019-09-29 00:46:13 +02:00
oxnas oxnas: convert DEVICE_TITLE to new variables 2019-07-10 16:56:16 +02:00
pistachio pistachio: split up DEVICE_TITLE 2019-10-12 23:37:00 +02:00
ramips ramips: add support for ALFA Network R36M-E4G 2019-11-13 21:45:31 +01:00
rb532 rb532: split up DEVICE_TITLE 2019-10-19 13:16:57 +02:00
samsung samsung: split up DEVICE_TITLE 2019-09-11 15:17:09 +02:00
sunxi sunxi: update kernel config 2019-10-06 21:28:49 +02:00
tegra x86,tegra,mvebu: image: use common reproducible IMG_PART_SIGNATURE 2019-11-11 16:37:13 +01:00
uml
x86 x86,tegra,mvebu: image: use common reproducible IMG_PART_SIGNATURE 2019-11-11 16:37:13 +01:00
zynq kernel: bump 4.19 to 4.19.77 2019-10-08 12:44:35 +02:00
Makefile