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OpenNuvoton / NUC970_U-Boot_v2016.11

U-Boot v2016.11 for NUC970, N9H30, and NUC980
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Add defconfig for 64-pin NUC980DR series to boot from NOR SPI normal mode #24

Closed jaydcarlson closed 4 years ago

jaydcarlson commented 4 years ago

Because some of the boot configuration pins are unavailable, the 64-pin version of the NUC980 must be booted from NOR SPI flash memory; and because MOSI1 and MISO1 are unavailable as well, we have to operate in normal (non-quad) SPI mode.

I used the Eth2Uart defconfig to pick up the NOR SPI mode, but I had to switch Device Drivers -> SPI Support -> Select NUC980 QSPI0 in Quad Mode or Normal mode to "Normal mode"

To help newer users get started with this neat little part more quickly, I recommend adding a defconfig that handles this automatically.

jaydcarlson commented 4 years ago

Oops, didn't notice you guys have a new board, the NUC980 Chili, which uses the 64-pin variant of this processor. I'll just use that defconfig in the future. https://github.com/OpenNuvoton/NUC970_U-Boot_v2016.11/commit/b273854c93a49a2cbb6e9d5a62bb36eeecef7f72