u-boot-brain/board/varisys/cyrus
Simon Glass 088454cde2 board_f: Drop return value from initdram()
At present we cannot use this function as an init sequence call without a
wrapper, since it returns the RAM size. Adjust it to set the RAM size in
global_data instead, and return 0 on success.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2017-04-05 13:59:20 -04:00
..
cyrus.c usb: fsl: Rename fdt_fixup_dr_usb 2016-09-27 23:30:27 +02:00
cyrus.h mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
ddr.c board_f: Drop return value from initdram() 2017-04-05 13:59:20 -04:00
eth.c powerpc: P5040: Remove macro CONFIG_P5040 2016-11-23 23:42:11 -08:00
Kconfig NXP: Introduce board/freescale/common/Kconfig and migrate CHAIN_OF_TRUST 2017-01-24 10:33:59 -05:00
law.c mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
MAINTAINERS mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
Makefile Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00
pbi.cfg mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
pci.c mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00
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 mpc85xx: Add support for the Varisys Cyrus board 2015-11-04 15:19:34 -08:00

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