封欢 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
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Kconfig 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
MAINTAINERS 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
Makefile 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
README 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
cyrus.c 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
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ddr.c 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
eth.c 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
law.c 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
pbi.cfg 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
pci.c 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
rcw_p5020_v2.cfg 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
rcw_p5040.cfg 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago
tlb.c 720f21763f initial uboot use package u-boot-2021.01.tar.gz 3 years ago

README

Rebuilding u-boot for Cyrus

The Cyrus defconfigs are Cyrus_P5020_defconfig and Cyrus_P5040_defconfig.

They currently disable size optimization in order to avoid a relocation
bug in some versions of GCC. As the output size is a constant, the size
optimization is not currently important.

Cyrus boots off a microSD card in a slot on the motherboard. This requires
that the u-boot is built for the Pre-Boot Loader on the P5020/P5040.
In order to reflash u-boot, you must download u-boot.pbl, then write it
onto the card. To do that from u-boot:

> tftp 1000000 u-boot.pbl
> mmc write 1000000 8 672

If you want to do this via a card reader in linux:

> dd if=u-boot.pbl of=/dev/sdX bs=512 oseek=8