- OPI 4A - Allwinner T527
-
OPI 4A - Allwinner T527
- OPI 4A - Allwinner T527
- OPI 4A - Allwinner T527
Hi, I'm testing your Linux image on an Orange Pi 4B/4A with an eMMC installed and wanted to share the results. The image correctly detects the eMMC. The kernel recognizes the device as: mmcblk2: mmc2:0001 ISOCOM 58.3 GiB Operating mode: HS200 image : aurealnix-opi4a-debian13-cli-v0.2.img.xz @AurealNix Thank you for your work. Update: During boot, the kernel reports two reserved-memory warnings: OF: reserved mem: Reserved memory: failed to reserve memory for node 'sec-sram1@42350000' OF: reserved mem: Reserved memory: failed to reserve memory for node 'sec-sram2@43000000' The system remains fully functional. OP-TEE and BL31 reserved-memory nodes are present in the device tree, and eMMC HS200 operation has been tested successfully. root@orangepi-4a:~# uname -a Linux orangepi-4a 6.18.38-g59eb61929e89 #49 SMP PREEMPT Thu Jul 16 00:46:12 CEST 2026 aarch64 GNU/Linux root@orangepi-4a:~# free -m total used free shared buff/cache available Mem: 3830 330 95 9 3592 3500 Swap: 0 0 0 root@orangepi-4a:~# cat /etc/os-release PRETTY_NAME="Debian GNU/Linux 13 (trixie)" NAME="Debian GNU/Linux" VERSION_ID="13" VERSION="13 (trixie)" VERSION_CODENAME=trixie DEBIAN_VERSION_FULL=13.6 ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/" root@orangepi-4a:~# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS mmcblk0 179:0 0 7.4G 0 disk └─mmcblk0p1 179:1 0 7.4G 0 part / mmcblk2 179:32 0 58.3G 0 disk ├─mmcblk2p1 179:33 0 1.2G 0 part └─mmcblk2p2 179:34 0 57.1G 0 part /mnt/emmc-test mmcblk2boot0 179:64 0 4M 1 disk mmcblk2boot1 179:96 0 4M 1 disk root@orangepi-4a:~# fastfetch _,met$$$$$gg. root@orangepi-4a ,g$$$$$$$$$$$$$$$P. ---------------- ,g$$P"" """Y$$.". OS: Debian GNU/Linux 13 (trixie) aarch64 ,$$P' `$$$. Host: OrangePi 4A ',$$P ,ggs. `$$b: Kernel: Linux 6.18.38-g59eb61929e89 `d$$' ,$P"' . $$$ Uptime: 38 mins $$P d$' , $$P Packages: 299 (dpkg) $$: $$. - ,d$$' Shell: bash 5.2.37 $$; Y$b._ _,d$P' Terminal: /dev/pts/2 Y$$. `.`"Y$$$$P"' CPU: sun55i-t527 (8) @ 1.80 GHz `$$b "-.__ GPU: Allwinner sun55i-a523-mali [Integrated] `Y$$b Memory: 331.41 MiB / 3.74 GiB (9%) `Y$$. Swap: Disabled `$$b. Disk (/): 744.36 MiB / 7.19 GiB (10%) - ext4 `Y$$b. Disk (/mnt/emmc-test): 24.49 GiB / 55.91 GiB (44%) - ext4 `"Y$b._ Local IP (eth0): 192.168.7.12/27 `"""" Locale: en_US.UTF-8 root@orangepi-4a:~#- Orange Pi RV2
- OPI 4A - Allwinner T527
- OPI 4A - Allwinner T527
The eMMC is still not detected. Kernel log: [ 4.621568] mmc2: error -110 whilst initialising MMC card [ 4.627066] mmc2: Failed to initialize a non-removable card Working devices: [ 4.502846] mmc0: new high speed SDXC card at address aaaa [ 4.508907] mmcblk0: mmc0:aaaa SC64G 59.5 GiB [ 4.551951] mmc1: new high speed SDIO card at address 0001 The system boots correctly from the SD card, but the onboard eMMC (mmc2) is not initialized. There are also still Ethernet issues. After connecting through PuTTY, the system sometimes hangs when running dmesg, and the network connection becomes unstable or unresponsive. System information: Thanks- OPI 4A - Allwinner T527
- OPI 4A - Allwinner T527
- OPI 4A - Allwinner T527
- Orange Pi RV2
- Orange Pi RV2
- OPI 4A - Allwinner T527
- OPI 4A - Allwinner T527
- OPI 4A - Allwinner T527
JamesCL
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