OpenWrt Forum Archive

Topic: New TP-Link MR22U!

The content of this topic has been archived on 5 May 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Recently I am looking at battery-included portable wireless router, and the product line is TP-Link TL-MR10U, TP-Link TL-MR11U, TP-Link TL-MR12U, TP-Link TL-MR13U and TP-Link TL-MR3020, TP-Link TL-MR3040 TP-Link TL-WR703N from TP-link. Basically their hardware is very very similar, so similar that the openwrt can flash with each other. The difference is only the country marketing (global and Chinese version) or tiny spec change (battery capacity, packaging appearance).

I just found there is a new model, TP-Link MR22U. As I can see, it is still very similar to above products, but with:

1, 300Mbps wireless, instead of 150Mbps.
2, 5200 mAh battery.


Interestingly I can find no information about this portable router across internet, because it is quite new perhaps. But most of them is in Chinese - which is reasonable because the MRXXU is for China marketing.

So, is there any chance that we can put openwrt on this new router? Since it is so similar to his brothers, is there a shortcut to flash it? Of course, before 100% check of its hardware there may be some risk...

Thanks!

AR9531 CPU with 8M flash 64M RAM

which is fake info someone posted on http://right.com.cn/forum/thread-176353-1-1.html

RAM chip is ESMT M13S2561616A-5T which is 32M

P.S. fuck you xinyimingming

(Last edited by anarchy99 on 9 Aug 2017, 14:02)

chinese specification was a lie. it has only 32MB RAM. firmware was signed so it was not possible to upload openwrt image. even after checksum updates web interface showed error 18009

system type        : QCA953x
processor        : 0
cpu model        : MIPS 24Kc V7.4
BogoMIPS        : 365.56
wait instruction    : yes
microsecond timers    : yes
tlb_entries        : 16
extra interrupt vector    : yes
hardware watchpoint    : yes, count: 4, address/irw mask: [0x0004, 0x0ff8, 0x0ff8, 0x0ff8]
ASEs implemented    : mips16
shadow register sets    : 1
core            : 0
VCED exceptions        : not available
VCEI exceptions        : not available
dev:    size   erasesize  name
mtd0: 00020000 00010000 "boot"
mtd1: 00100000 00010000 "kernel"
mtd2: 006c0000 00010000 "rootfs"
mtd3: 00010000 00010000 "config"
mtd4: 00010000 00010000 "art"

bluebug's method for wr702n worked: http://pastebin.com/0wzMthfr

drwxr-xr-x    2 0        0               0 Jan  1 00:00 3G
-rw-r--r--    1 0        0             473 Jan  1 00:00 80211g.ap_radio
-rw-r--r--    1 0        0               0 Jan  1 00:02 aa
-rw-r--r--    1 0        0             437 Jan  1 00:00 ath0.ap_bss
-rw-r--r--    1 0        0              47 Jan  1 00:03 bb
-rwxr-xr-x    1 0        0         1694608 Jan  1 00:02 busybox
----------    1 0        0            1432 Jan  1 00:00 dec-model.conf
drwxr-xr-x    2 0        0               0 Jan  1 00:00 dev
-rw-r--r--    1 0        0              73 Jan  1 00:00 hostapd.eap_user
-rw-r--r--    1 0        0               2 Jan  1 00:00 httpd_ready
-rw-r--r--    1 0        0         1048576 Jan  1 00:02 img1
-rw-r--r--    1 0        0         7077888 Jan  1 00:02 img2
-rw-r--r--    1 0        0               0 Jan  1 00:00 logger.text
-rw-r--r--    1 0        0               0 Jan  1 00:03 ltmp
srwxr-xr-x    1 0        0               0 Jan  1 00:00 manual_handle_card
-rw-r--r--    1 0        0             533 Jan  1 00:00 passwd
prw-r--r--    1 0        0               0 Jan  1 00:00 pipe_mud80
drwxr-xr-x    4 0        0               0 Jan  1 00:00 samba
-rw-r--r--    1 0        0             227 Jan  1 00:00 topology.conf
drwxr-xr-x    2 0        0               0 Jan  1 00:00 usbdisk
-rw-r--r--    1 0        0            1266 Jan  1 00:00 ushare.conf
drwxr-xr-x    7 0        0               0 Jan  1 00:00 vsftp
drwxr-xr-x    2 0        0               0 Jan  1 00:00 wr841n

before any flashing i tried to backup the current flash contents. managed to get full 128KB u-boot section once, but any other tries just gave broken files ranging from 70 to 120KB. backing up firmware or art partition did not work at all.

i suspected the busybox was problematic or more likely the executed command sequence because bugblue's original file without last two commands (better not to give reboot parameter due to instabilities and no idea what the hell should echo blaaat do) did not work too. md5sum also did not work so i couldn't check if the images uploaded to device were intact.

so i split commands in two files:

file aa containing:

cd /tmp
tftp -gl img1 192.168.1.2
tftp -gl img2 192.168.1.2
tftp -gl busybox 192.168.1.2
chmod 755 busybox
ls -l > ls
tftp -pl ls 192.168.1.2

should send both image parts and busybox to device, set permissions on busybox, list the tmp directory contents, write them to file ls and send that file back to server. you have to check that file so that it matches img filesizes 1048576 and 7077888 before executing second command sequence that will write these files to flash.

file bb containing:

cd /tmp
./busybox dd if=img1 of=/dev/mtdblock1 conv=fsync
./busybox dd if=img2 of=/dev/mtdblock2 conv=fsync

should write files to kernel and rootfs partitions. you can add ./busybox reboot -f at the end but i found it is safer to just wait for few minutes and power cycle the device.

busybox was downloaded from keyboardgnome's reflash topic: https://forum.openwrt.org/viewtopic.php?id=63123

1. reset device to factory settings

2. set password using curl

curl -o - -b 'tLargeScreenP=1; subType=pcSub; Authorization=Basic%20YWRtaW46YWRtaW40Mg%3D%3D; ChgPwdSubTag=true' 'http://192.168.1.1/'

password is admin42 after this

3. add parental control rule

curl -o - -b 'tLargeScreenP=1; subType=pcSub; Authorization=Basic%20YWRtaW46YWRtaW40Mg%3D%3D; ChgPwdSubTag=' --referer 'http://192.168.1.1/userRpm/ParentCtrlRpm.htm' 'http://192.168.1.1/userRpm/ParentCtrlRpm.htm?ctrl_enable=1&parent_mac_addr=00-00-00-00-00-02&Page=1'

4. execute first sequence of commands

curl -o - -b 'tLargeScreenP=1; subType=pcSub; Authorization=Basic%20YWRtaW46YWRtaW40Mg%3D%3D; ChgPwdSubTag=' --referer 'http://192.168.1.1/userRpm/ParentCtrlRpm.htm?Modify=0&Page=1' 'http://192.168.1.1/userRpm/ParentCtrlRpm.htm?child_mac=00-00-00-00-00-01&lan_lists=888&url_comment=test&url_0=;cd%20/tmp;&url_1=;tftp%20-gl%20aa%20192.168.1.2;&url_2=;sh%20aa;&url_3=&url_4=&url_5=&url_6=&url_7=&scheds_lists=255&enable=1&Changed=1&SelIndex=0&Page=1&rule_mode=0&Save=%B1%A3+%B4%E6'

5. check the ls file got from device for img filesizes

6. go to web interface parental control (the one in the middle that has •, others have +) and delete the entry by clicking on the link at right

7. execute second sequence of commands

curl -o - -b 'tLargeScreenP=1; subType=pcSub; Authorization=Basic%20YWRtaW46YWRtaW40Mg%3D%3D; ChgPwdSubTag=' --referer 'http://192.168.1.1/userRpm/ParentCtrlRpm.htm?Modify=0&Page=1' 'http://192.168.1.1/userRpm/ParentCtrlRpm.htm?child_mac=00-00-00-00-00-01&lan_lists=888&url_comment=test&url_0=;cd%20/tmp;&url_1=;tftp%20-gl%20bb%20192.168.1.2;&url_2=;sh%20bb;&url_3=&url_4=&url_5=&url_6=&url_7=&scheds_lists=255&enable=1&Changed=1&SelIndex=0&Page=1&rule_mode=0&Save=%B1%A3+%B4%E6'

8. wait few minutes (2 at least or 3? i did not count..) until files are written then power cycle device.

the device should now boot with your preferred openwrt configuration.



patch i made to build image for TL-MR22U. if using BTN_SW1 and BTN_SW2 check these gpios are correct. because i didn't care much about this.

diff -urpN a/openwrt/target/linux/ar71xx/base-files/etc/board.d/02_network b/openwrt/target/linux/ar71xx/base-files/etc/board.d/02_network
--- a/openwrt/target/linux/ar71xx/base-files/etc/board.d/02_network    2016-09-21 18:53:58.848183000 +0200
+++ b/openwrt/target/linux/ar71xx/base-files/etc/board.d/02_network    2016-09-21 20:13:59.723654245 +0200
@@ -355,6 +355,7 @@ tl-mr10u |\
 tl-mr11u |\
 tl-mr12u |\
 tl-mr13u |\
+tl-mr22u |\
 tl-mr3020 |\
 tl-mr3040 |\
 tl-mr3040-v2 |\
diff -urpN a/openwrt/target/linux/ar71xx/base-files/etc/diag.sh b/openwrt/target/linux/ar71xx/base-files/etc/diag.sh
--- a/openwrt/target/linux/ar71xx/base-files/etc/diag.sh    2016-09-21 18:53:58.848183000 +0200
+++ b/openwrt/target/linux/ar71xx/base-files/etc/diag.sh    2016-09-21 20:14:38.135842026 +0200
@@ -338,6 +338,7 @@ get_status_led() {
     tl-mr10u | \
     tl-mr12u | \
     tl-mr13u | \
+    tl-mr22u | \
     tl-wdr4300 | \
     tl-wr703n | \
     tl-wr710n | \
diff -urpN a/openwrt/target/linux/ar71xx/base-files/lib/ar71xx.sh b/openwrt/target/linux/ar71xx/base-files/lib/ar71xx.sh
--- a/openwrt/target/linux/ar71xx/base-files/lib/ar71xx.sh    2016-09-21 18:53:58.848183000 +0200
+++ b/openwrt/target/linux/ar71xx/base-files/lib/ar71xx.sh    2016-09-21 20:15:55.936222378 +0200
@@ -233,6 +233,9 @@ tplink_board_detect() {
     "001301"*)
         model="TP-Link TL-MR13U"
         ;;
+    "002201"*)
+        model="TP-Link TL-MR22U"
+        ;;
     "302000"*)
         model="TP-Link TL-MR3020"
         ;;
@@ -962,6 +965,9 @@ ar71xx_board_detect() {
     *"TL-MR13U v1")
         name="tl-mr13u"
         ;;
+    *"TL-MR22U v1")
+        name="tl-mr22u"
+        ;;
     *"Tube2H")
         name="tube2h"
         ;;
diff -urpN a/openwrt/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/openwrt/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
--- a/openwrt/target/linux/ar71xx/base-files/lib/upgrade/platform.sh    2016-09-21 18:53:58.852183000 +0200
+++ b/openwrt/target/linux/ar71xx/base-files/lib/upgrade/platform.sh    2016-09-26 22:23:05.160309794 +0200
@@ -356,6 +356,7 @@ platform_check_image() {
     tl-mr11u | \
     tl-mr12u | \
     tl-mr13u | \
+    tl-mr22u | \
     tl-mr3020 | \
     tl-mr3040 | \
     tl-mr3040-v2 | \
@@ -408,6 +409,12 @@ platform_check_image() {
             ;;
         esac
 
+        case "$board" in
+        tl-mr22u)
+            magic_ver="0200"
+            ;;
+        esac
+
         [ "$magic" != "$magic_ver" ] && {
             echo "Invalid image type."
             return 1
diff -urpN a/openwrt/target/linux/ar71xx/config-4.1 b/openwrt/target/linux/ar71xx/config-4.1
--- a/openwrt/target/linux/ar71xx/config-4.1    2016-09-21 18:53:58.852183000 +0200
+++ b/openwrt/target/linux/ar71xx/config-4.1    2016-09-21 20:17:18.496625993 +0200
@@ -136,6 +136,7 @@ CONFIG_ATH79_MACH_TEW_732BR=y
 CONFIG_ATH79_MACH_TEW_823DRU=y
 CONFIG_ATH79_MACH_TL_MR11U=y
 CONFIG_ATH79_MACH_TL_MR13U=y
+CONFIG_ATH79_MACH_TL_MR22U=y
 CONFIG_ATH79_MACH_TL_MR3020=y
 CONFIG_ATH79_MACH_TL_MR3X20=y
 CONFIG_ATH79_MACH_TL_WA701ND_V2=y
diff -urpN a/openwrt/target/linux/ar71xx/config-4.4 b/openwrt/target/linux/ar71xx/config-4.4
--- a/openwrt/target/linux/ar71xx/config-4.4    2016-09-21 18:53:58.852183000 +0200
+++ b/openwrt/target/linux/ar71xx/config-4.4    2016-09-21 20:17:19.336630096 +0200
@@ -140,6 +140,7 @@ CONFIG_ATH79_MACH_TEW_732BR=y
 CONFIG_ATH79_MACH_TEW_823DRU=y
 CONFIG_ATH79_MACH_TL_MR11U=y
 CONFIG_ATH79_MACH_TL_MR13U=y
+CONFIG_ATH79_MACH_TL_MR22U=y
 CONFIG_ATH79_MACH_TL_MR3020=y
 CONFIG_ATH79_MACH_TL_MR3X20=y
 CONFIG_ATH79_MACH_TL_WA701ND_V2=y
diff -urpN a/openwrt/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/openwrt/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
--- a/openwrt/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt    2016-09-21 18:53:58.852183000 +0200
+++ b/openwrt/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt    2016-09-21 20:23:11.318350851 +0200
@@ -1128,6 +1128,16 @@ config ATH79_MACH_TL_MR13U
     select ATH79_DEV_USB
     select ATH79_DEV_WMAC
 
+config ATH79_MACH_TL_MR22U
+    bool "TP-LINK TL-MR22U support"
+    select SOC_QCA953X
+    select ATH79_DEV_ETH
+    select ATH79_DEV_GPIO_BUTTONS
+    select ATH79_DEV_LEDS_GPIO
+    select ATH79_DEV_M25P80
+    select ATH79_DEV_USB
+    select ATH79_DEV_WMAC
+
 config ATH79_MACH_TL_MR3020
     bool "TP-LINK TL-MR3020 support"
     select SOC_AR933X
diff -urpN a/openwrt/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-mr22u.c b/openwrt/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-mr22u.c
--- a/openwrt/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-mr22u.c    1970-01-01 01:00:00.000000000 +0100
+++ b/openwrt/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-mr22u.c    2016-09-26 21:58:49.869195240 +0200
@@ -0,0 +1,109 @@
+/*
+ *  TP-LINK TL-MR22U board support
+ *
+ *  Copyright (C) 2011 dongyuqi <729650915@qq.com>
+ *  Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/ar8216_platform.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.h"
+#include "dev-eth.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+
+#define TL_MR22U_GPIO_USB_POWER        11
+#define TL_MR22U_GPIO_BTN_RESET        12
+#define TL_MR22U_GPIO_LED_SYSTEM    13
+#define TL_MR22U_GPIO_BTN_SW1        14
+#define TL_MR22U_GPIO_BTN_SW2        16
+#define TL_MR22U_KEYS_POLL_INTERVAL    20    /* msecs */
+#define TL_MR22U_KEYS_DEBOUNCE_INTERVAL    (3 * TL_MR22U_KEYS_POLL_INTERVAL)
+
+static const char *tl_mr22u_part_probes[] = {
+    "tp-link",
+    NULL,
+};
+
+static struct flash_platform_data tl_mr22u_flash_data = {
+    .part_probes    = tl_mr22u_part_probes,
+};
+
+static struct gpio_led tl_mr22u_leds_gpio[] __initdata = {
+    {
+        .name        = "tp-link:blue:system",
+        .gpio        = TL_MR22U_GPIO_LED_SYSTEM,
+        .active_low    = 1,
+    },
+};
+
+static struct gpio_keys_button tl_mr22u_gpio_keys[] __initdata = {
+    {
+        .desc        = "reset",
+        .type        = EV_KEY,
+        .code        = KEY_RESTART,
+        .debounce_interval = TL_MR22U_KEYS_DEBOUNCE_INTERVAL,
+        .gpio        = TL_MR22U_GPIO_BTN_RESET,
+        .active_low    = 1,
+    },
+    {
+        .desc        = "sw1",
+        .type        = EV_KEY,
+        .code        = BTN_0,
+        .debounce_interval = TL_MR22U_KEYS_DEBOUNCE_INTERVAL,
+        .gpio        = TL_MR22U_GPIO_BTN_SW1,
+        .active_low    = 0,
+    },
+    {
+        .desc        = "sw2",
+        .type        = EV_KEY,
+        .code        = BTN_1,
+        .debounce_interval = TL_MR22U_KEYS_DEBOUNCE_INTERVAL,
+        .gpio        = TL_MR22U_GPIO_BTN_SW2,
+        .active_low    = 0,
+    },
+};
+
+static void __init tl_mr22u_setup(void)
+{
+    u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
+    u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
+
+    /* disable PHY_SWAP and PHY_ADDR_SWAP bits */
+    ath79_setup_ar933x_phy4_switch(false, false);
+
+    ath79_register_m25p80(&tl_mr22u_flash_data);
+    ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_mr22u_leds_gpio),
+                 tl_mr22u_leds_gpio);
+    ath79_register_gpio_keys_polled(-1, TL_MR22U_KEYS_POLL_INTERVAL,
+                    ARRAY_SIZE(tl_mr22u_gpio_keys),
+                    tl_mr22u_gpio_keys);
+
+    gpio_request_one(TL_MR22U_GPIO_USB_POWER,
+             GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
+             "USB power");
+    ath79_register_usb();
+
+    ath79_register_mdio(0, 0x0);
+    ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
+    ath79_eth0_data.duplex = DUPLEX_FULL;
+    ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+    ath79_eth0_data.speed = SPEED_100;
+    ath79_eth0_data.phy_mask = BIT(4);
+    ath79_register_eth(0);
+    ath79_register_wmac(ee, mac);
+}
+
+MIPS_MACHINE(ATH79_MACH_TL_MR22U, "TL-MR22U", "TP-LINK TL-MR22U v1",
+         tl_mr22u_setup);
diff -urpN a/openwrt/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/openwrt/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
--- a/openwrt/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h    2016-09-21 18:53:58.868184000 +0200
+++ b/openwrt/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h    2016-09-21 20:18:42.741037841 +0200
@@ -164,6 +164,7 @@ enum ath79_mach_type {
     ATH79_MACH_TL_MR10U,        /* TP-LINK TL-MR10U */
     ATH79_MACH_TL_MR11U,        /* TP-LINK TL-MR11U */
     ATH79_MACH_TL_MR13U,        /* TP-LINK TL-MR13U */
+    ATH79_MACH_TL_MR22U,        /* TP-LINK TL-MR22U */
     ATH79_MACH_TL_MR3020,        /* TP-LINK TL-MR3020 */
     ATH79_MACH_TL_MR3040,        /* TP-LINK TL-MR3040 */
     ATH79_MACH_TL_MR3040_V2,    /* TP-LINK TL-MR3040 v2 */
diff -urpN a/openwrt/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/openwrt/target/linux/ar71xx/files/arch/mips/ath79/Makefile
--- a/openwrt/target/linux/ar71xx/files/arch/mips/ath79/Makefile    2016-09-21 18:53:58.852183000 +0200
+++ b/openwrt/target/linux/ar71xx/files/arch/mips/ath79/Makefile    2016-09-21 20:23:46.206521409 +0200
@@ -144,6 +144,7 @@ obj-$(CONFIG_ATH79_MACH_TEW_732BR)    += ma
 obj-$(CONFIG_ATH79_MACH_TEW_823DRU)    += mach-tew-823dru.o
 obj-$(CONFIG_ATH79_MACH_TL_MR11U)    += mach-tl-mr11u.o
 obj-$(CONFIG_ATH79_MACH_TL_MR13U)    += mach-tl-mr13u.o
+obj-$(CONFIG_ATH79_MACH_TL_MR22U)    += mach-tl-mr22u.o
 obj-$(CONFIG_ATH79_MACH_TL_MR3020)    += mach-tl-mr3020.o
 obj-$(CONFIG_ATH79_MACH_TL_MR3X20)    += mach-tl-mr3x20.o
 obj-$(CONFIG_ATH79_MACH_TL_WAX50RE)     += mach-tl-wax50re.o
diff -urpN a/openwrt/target/linux/ar71xx/generic/profiles/tp-link.mk b/openwrt/target/linux/ar71xx/generic/profiles/tp-link.mk
--- a/openwrt/target/linux/ar71xx/generic/profiles/tp-link.mk    2016-09-21 18:53:58.876184000 +0200
+++ b/openwrt/target/linux/ar71xx/generic/profiles/tp-link.mk    2016-09-21 20:21:14.901781715 +0200
@@ -70,6 +70,17 @@ endef
 $(eval $(call Profile,TLMR13U))
 
 
+define Profile/TLMR22U
+    NAME:=TP-LINK TL-MR22U
+    PACKAGES:=kmod-usb-core kmod-usb2 kmod-ledtrig-usbdev
+endef
+
+define Profile/TLMR22U/Description
+    Package set optimized for the TP-LINK TL-MR22U.
+endef
+$(eval $(call Profile,TLMR22U))
+
+
 define Profile/TLMR3020
     NAME:=TP-LINK TL-MR3020
     PACKAGES:=kmod-usb-core kmod-usb2 kmod-ledtrig-usbdev
diff -urpN a/openwrt/target/linux/ar71xx/image/Makefile b/openwrt/target/linux/ar71xx/image/Makefile
--- a/openwrt/target/linux/ar71xx/image/Makefile    2016-09-21 20:41:15.691652000 +0200
+++ b/openwrt/target/linux/ar71xx/image/Makefile    2016-09-21 20:42:26.115996368 +0200
@@ -628,6 +628,16 @@ define Device/tl-mr13u-v1
 endef
 TARGET_DEVICES += tl-mr10u-v1 tl-mr11u-v1 tl-mr11u-v2 tl-mr12u-v1 tl-mr13u-v1
 
+define Device/tl-mr22u-v1
+    $(Device/tplink-8mlzma)
+    BOARDNAME := TL-MR22U
+    DEVICE_PROFILE := TLMR22U
+    TPLINK_HWID := 0x00220101
+    CONSOLE := ttyATH0,115200
+    TPLINK_HEADER_VERSION := 2
+endef
+TARGET_DEVICES += tl-mr22u-v1
+
 define Device/tl-mr3020-v1
     $(Device/tplink-4mlzma)
     BOARDNAME := TL-MR3020

got working uboot, with default clocks 800/600/300

device working quite fast and also usb throughput is increased to 50-60Mbps from 30-40Mbps

it is possible to set lower or default clocks from netconsole

+    TPLINK_HEADER_VERSION := 2 has to be removed from patch for modified uboot to work

use at your own risk: removed - build your own from source if you need it

(Last edited by anarchy99 on 1 Jun 2017, 01:41)

I have followed the guide by anarchy, but nothing happened to the router after running the last command.
What's more, I have tried the u-boot from wiki.openwrt.org/toh/tp-link/tp-link_tl-mr22u_v1 by directly write it into flash with external flash programmer, but the u-boot didn't work normally. I do entered in the web server, but it will disconnect after 10 sec, so I never upload the firmware successfully.
I also tried write lede image together with u-boot or original bootloader into flash( use WR810N and WR802N's image, they both have the QCA9531/QCA9533 SOC, so I think it could work on MR22U). But all in vain.
I have tried all ways I know to make it run Openwrt/LEDE, and now I was exhausted. Anyone know about it? Any suggestion will be appreciated.
Sorry for my poor English, since my mother tongue is Chinese.
I do hope this tiny router could run LEDE, so I can make it as a shield of Public WiFi Hotspot.

(Last edited by lostwindsenril on 6 Aug 2017, 14:21)

lostwindsenril wrote:

I have followed the guide by anarchy, but nothing happened to the router after running the last command.

post output of your file ls.

lostwindsenril wrote:

  What's more, I have tried the u-boot from wiki.openwrt.org/toh/tp-link/tp-link_tl-mr22u_v1 by directly write it into flash with external flash programmer, but the u-boot didn't work normally. I do entered in the web server, but it will disconnect after 10 sec, so I never upload the firmware successfully.

what happens if you switch off/on power button? any LED indications?

lostwindsenril wrote:

I
  I also tried write lede image together with u-boot or original bootloader into flash( use WR810N and WR802N's image, they both have the QCA9531/QCA9533 SOC, so I think it could work on MR22U). But all in vain.

don't do that

Appreciate for your reply, anarchy99.
After writing the u-boot, if I switch on power button, no LED light up, and I connect the router with PC with Ethernet under the circumstance, PC shows "Ethernet cable is disconnect". But if I switch on power with pressing reset button, the blue LED will blink.
As for the output, I'll flash the stock programmer backup again tomorrow, as I don't have appropriate tools at hand. Please wait for me.

have you changed flash chip or do any soldering? try entering netconsole and set default clocks 550/400/200. i've noticed webserver and netconsole disconnecting after few seconds even on ar9331 boards. you can report that bug on author's github page if you want.

Yes, I've replaced the RAM with a 64MB one, but it works well under stock firmware. I entered in netconsole using "Hercules SETUP utility", but whatever I input and send, nothing output. Maybe you can backup your firmware and send to me if you already runs OpenWRT on MR22U? Much Thanks for your help.

looks like his information about min. 7 seconds of holding button to enter netconsole is wrong. i have to hold it at least 10 seconds. also better to use netcat if you're on linux. give me some email address to send you dump.

lostwindsenril@hotmail.com
Great, thanks!

bad news. my image is >8MB and flash replaced with 16MB so this dump won't help you. try again with netconsole.

Nothing serious, I have 16MB flash. A whole 16MB flash programmer dump will be better.

Hi, this forum forbid me to paste link, so I have to put my log here.
Hope that is clear.
1drv.ms/w/s!AhrwTBd3AoFSnRbGRvKSEmo_xwAA

(Last edited by lostwindsenril on 7 Aug 2017, 14:03)

Maybe manufacturer has fixed this bug, and netconsole is still not working.
Maybe flash programmer dump is the only way.
Looking forward to your reply.

does the u-boot i sent you yesterday work?

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