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Altera_Forum's avatar
Altera_Forum
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20 years ago

uClinux without Flash (again)

I decided to give uClinux a try on my custom board, but I only have an SD card slot, no CFI. When reading the install guide for uClinux, and when trying it, it won't let me build a kernel project...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

I have MMC/SD sockets on some of my boards.

And I am going to try out.

The NIOS SPI is not good for MMC/SD.

I am using PIO ports instead.

I think using "root=/dev/mmc" is not a good idea.

After the system boot, the mmc/sd card may be unplug, and another be plug in later.

So I am going to keep Initramfs as root fs.

The devfs was obsolete, and will be replaced by udev.

I am going to mknod mmc with fixed device number.

I will also check mmc driver from newer kernel.