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README: s/UART0/UART2/ for newer uboot patches

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Daniel Fullmer 2020-10-28 11:11:25 -07:00
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README.md
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@ -75,7 +75,7 @@ Run `nix-build -A firmware-installer`. Then,
```shell ```shell
$ dd if=result/firmware-installer-image.img of=/dev/sdX bs=1024 $ dd if=result/firmware-installer-image.img of=/dev/sdX bs=1024
``` ```
Then, use the menu option available over UART0 to install u-boot to the SPI. Then, use the menu option available over UART2 to install u-boot to the SPI.
I initially flashed a bad u-boot, which caused me to be unable to boot from MMC or even FEL. I initially flashed a bad u-boot, which caused me to be unable to boot from MMC or even FEL.
I was able to force the Pinecube to load into FEL by grounding the `SPI0_MISO` pin. I was able to force the Pinecube to load into FEL by grounding the `SPI0_MISO` pin.