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--- en:bpi-r3mini:start [2024/02/11 17:27] – [pcie/nvme] frank
+++ en:bpi-r3mini:start [2024/04/21 19:16] – [network support] frank
@@ Line 1: / Line 1: @@
-====== BananaPi R3 ======
+====== BananaPi R3 Mini ======
 https://wiki.banana-pi.org/Banana_Pi_BPI-R3_Mini
@@ Line 39: / Line 39: @@
   dd if=/mnt/sda1/r3mini/fip_r3mini_emmc_pcie.bin bs=1024 conv=notrunc,fsync of=/dev/mmcblk0p4
+booted original openwrt from nand....
+<code>
+root@OpenWrt:/mnt/r3mini# dd of=/dev/mmcblk0p4 if=/mnt/r3mini/bpi-r3mini_emmc_fip.bin
++1 records in
++1 records out
+root@OpenWrt:/mnt/r3mini# dd of=/dev/mmcblk0boot0 if=/mnt/r3mini/bpi-r3mini_emmc_bl2.img
+dd: error writing '/dev/mmcblk0boot0': Operation not permitted
++0 records in
++0 records out
+root@OpenWrt:/mnt/r3mini# echo 0 > /sys/block/mmcblk0boot0/force_ro
+root@OpenWrt:/mnt/r3mini# dd of=/dev/mmcblk0boot0 if=/mnt/r3mini/bpi-r3mini_emmc_bl2.img
++1 records in
++1 records out
+root@OpenWrt:/mnt/r3mini#
+</code>
 Kernel (creates the bpi-r3.itb with conf-emmc-mini bootconfig):
@@ Line 57: / Line 72: @@
   dumpimage -l /media/frank/Android-x86/r3mini/bpi-r3.itb
+==== thermal ====
+  root@bpi-r3-mini:~# cat /sys/class/thermal/thermal_zone0/temp
+manipulating trip points...this lets the fan run at 45°C silently and faster at 55°C (Case for R3mini gets really hot)
+  root@bpi-r3-mini:~# echo 45000 > /sys/class/thermal/thermal_zone0/trip_point_3_temp
+  root@bpi-r3-mini:~# echo 55000 > /sys/class/thermal/thermal_zone0/trip_point_2_temp
+==== my kernel ====
+i merged R3Mini support to my 6.6-main
+https://github.com/frank-w/BPI-Router-Linux/tree/6.6-main
 ==== vendor-kernel ====
@@ Line 114: / Line 145: @@
 </code>
-we will wait till phy driver is in linux mainline and use this as base for rewriting uboot driver
+This is fixed in my 2024-04 uboot by always run autonegotiation code (genphy code seems not working here).
+Writing firmware to emmc boot1:
+<code>
+usb start
+mmc partconf 0 1 2 2
+mmc erase 0x0 0x120
+load usb 0:1 $loadaddr EthMD32.dm.bin
+mmc write $loadaddr 0x0 0x20
+load usb 0:1 $loadaddr EthMD32.DSP.bin
+mmc write $loadaddr 0x20 0x100
+mmc partconf 0 1 1 0
+</code>
+daniel wrote it here: https://forum.banana-pi.org/t/bpi-r3-mini-boot-from-nand-fails/17340/27
+Linux way:
+<code>
+echo 0 > /sys/block/mmcblk0boot1/force_ro
+dd if=/lib/firmware/airoha/EthMD32.dm.bin of=/dev/mmcblk0boot1
+dd if=/lib/firmware/airoha/EthMD32.DSP.bin bs=16384 seek=1 of=/dev/mmcblk0boot1
+</code>
+<hidden>
+checking content of boot1 is same as concatenated firmware-files:
+<code>
+# cat /dev/mmcblk0boot1 > airoha_boot1.bin
+# cat /mnt/r3mini/EthMD32.dm.bin /mnt/r3mini/EthMD32.DSP.bin > airoha_usb.bin
+# ls -l airoha_usb.bin
+-rw-r--r-- 1 root root 147456 Jan  1 00:03 airoha_usb.bin
+# ls -l airoha_boot1.bin
+-rw-r--r-- 1 root root 4194304 Jan  1 00:00 airoha_boot1.bin
+# truncate --size=147456 airoha_boot1.bin
+# ls -l airoha_boot1.bin
+-rw-r--r-- 1 root root 147456 Jan  1 00:05 airoha_boot1.bin
+# diff -u airoha_boot1.bin airoha_usb.bin
+#
+</code>
+</hidden>
+==== Fix bricked boot ====
+In case nand and emmc are broken there is a way to load uboot via uart for reflash/fix bootchain of the storages.
+https://forum.banana-pi.org/t/bpi-r3-mini-boot-from-nand-fails/17340/24
+files here:
+https://drive.google.com/drive/folders/1b8KWe0p7fZmsRs9eBZUJBBISv3r2oUOR?usp=drive_link
+<code>
+$ ./mtk_uartboot -s /dev/ttyUSB5 --aarch64 --payload bpi-r3mini_ram_bl2.bin --fip bpi-r3mini_ram_fip.bin
+mtk_uartboot - 0.1.1
+Using serial port: /dev/ttyUSB5
+Handshake...
+hw code: 0x7986
+hw sub code: 0x8a00
+hw ver: 0xca01
+sw ver: 0x1
+Baud rate set to 460800
+sending payload to 0x201000...
+Checksum: 0x3663
+Setting baudrate back to 115200
+Jumping to 0x201000 in aarch64...
+Waiting for BL2. Message below:
+==================================
+NOTICE:  BL2: v2.9(release):v2.9.0-357-g553a16af808e ram
+NOTICE:  BL2: Built : 17:17:10, Mar  3 2024
+NOTICE:  WDT: Cold boot
+NOTICE:  WDT: disabled
+NOTICE:  CPU: MT7986 (1998MHz)
+NOTICE:  EMI: Using DDR4 settings
+NOTICE:  EMI: Detected DRAM size: 2048MB
+NOTICE:  EMI: complex R/W mem test passed
+NOTICE:  Starting UART download handshake ...
+==================================
+BL2 UART DL version: 0x10
+Baudrate set to: 921600
+FIP sent.
+==================================
+NOTICE:  Received FIP 0x4d695 @ 0x40400000 ...
+==================================
+</code>
+now you can use minicom or similar tool to get uboot-console and reflash bl2/fip to nand/emmc