Posted: Wed Jan 28, 2009 15:49 Post subject: Linksys WRT54Gv2 SD/MMC Mod Issues
I've just followed all instructions for modding the router to enable SD/MMC support. However, after doing all the soldering etc, I plugged in the microSD with SD adaptor and turned the router on. All the front lights except the DMZ one turned on and hung.
I took out the card, unplugged the router from power, and reset it. Then I turned it on without the card inserted. It booted up fine. So I put the card in and mounted it via the GUI. It mounted it and then hung again - same LEDs lighting up, no response to GUI etc.
I did some searching on the forums, and I found one person who had a similiar problem, but he said that he formatted the card manually with ext2 and then it booted up hunky dory. So I tried that. With the same results.
I've got pictures of all the soldering, and the router itself. Thanks in advance for the expected help.
- What GPIO uses you for the mod, GPIO 2 or GPIO 5?. (I suppose you use the GPIO 5)
- What is the capacity of the microSD card?.
- Have you tried with the optimized mmc.o module from OpenWRT
I suggest you check this post. I done this mod in a WRT54GL with a 2 GB microSD card using the optimized mmc.o module mentioned before.
You can test the optimized mmc.o module mentioned before by uploading it to the "/tmp" folder (which is mounted in RAM) of the router via SCP (remember first enable SSH support), after uploading the module, insmod the uploaded module (example: "insmod /tmp/mmc.o") and check the dmesg output. If the card is initialized successfully, try mount the card (if already formatted, preferably with ext2 filesystem) and check the "df" command output showing the card mounted. Remember disabling before the MMC support in the webgui in order to avoid the insertion of the dd-wrt mmc.o module. In a nutshell:
I done the SD/MMC mod in a WRT54GL 1.1, the mod has attached a Kingston 2 GB microSD card with the SD adapter and works great with the optimized mmc.o module from OpenWRT. The dd-wrt mmc.o module keeps rebooting the router after formatting automatically the card at startup. Check this post.