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u-boot-brain/board/varisys/cyrus
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Simon Glass 7b51b576d6 env: Move env_get() to env.h 
Move env_get() over to the new header file.

Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-08-11 16:43:41 -04:00
..
cyrus.c env: Move env_get() to env.h 2019-08-11 16:43:41 -04:00
cyrus.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
ddr.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
eth.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
Kconfig NXP: Introduce board/freescale/common/Kconfig and migrate CHAIN_OF_TRUST 2017-01-24 10:33:59 -05:00
law.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
MAINTAINERS mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
Makefile SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
pbi.cfg mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
pci.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
rcw_p5020_v2.cfg mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
rcw_p5040.cfg mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
README mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
tlb.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00

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