Uses for SPI Flash

[Arwen]

I saw something frightening when I went searching for a larger SPI flash device.
Vendors make 2Gbit SPI flash devices, (256MByte). Way larger than our current
128Mbit, (16Mbyte).

But, an earlier post was probably correct, 16Mbyte is alot. My desired firmware
would be Open Firmware, as it's programable, easy to use and does not have to
be a GUI. It probably will fit in 16Mbyte.

Ideally, I would be able to test the Open Firmware as a partition / location on the
eMMC or SD card. Then have uboot run it. That way, no worrying about flashing
it to the SPI until the final testing.

For those that don't know, Open Firmware allows setting boot order, like;

Code:

setenv boot-device emmc sdxc

We may even beable to include PCIe NVMe bootability in Open Firmware. (The
Rockchip does not have this feature inside it.)