On Dec 30, 2011, at 10:53 PM, Paul Gortmaker wrote: > This updates the sbc8548 board support with several improvements > for the end users. > > -ability to use SPD DDR config for easy RAM upgrades > -ability to use alternate SODIMM flash for backup u-boot image > -localbus config settings fixed so 128MB LBC SDRAM works reliably > > The discovery of a hardware errata (overlapping I2C SPD addresses) > is at the core of what now allows the use of SPD configuration. > > The relocation of the 64MB user flash is to align it on a 64MB > boundary, which simplifies a whole lot of things, both in the code > and for the end user. (The previous mapping meant the last sector > on the chip wasn't consistently the last sector in the address > space assigned to the chip for all jumper configurations.) > > Reverting a bogus commit from the past that incorrectly set the > windows for the 64MB flash to 128MB was the starting point for > getting this all working. > > Paul. > > --- > The following changes since commit cba9a894fdb1cb49b60fcd1d1d6919cbd7995dd5: > > Prepare v2011.12 (2011-12-23 20:25:35 +0100) > > are available in the git repository at: > git://openlinux.windriver.com/people/paulg/u-boot sbc8548-Dec30_2011 > > Paul Gortmaker (8): > Revert "SBC8548: fix address mask to allow 64M flash" > sbc8548: relocate 64MB user flash to sane boundary > sbc8548: enable ability to boot from alternate flash > sbc8548: Fix LBC SDRAM initialization settings > sbc8548: Make enabling SPD RAM configuration work > sbc8548: relocate fixed ddr init code to ddr.c file > sbc8548: enable support for hardware SPD errata workaround > sbc8548: Fix up local bus init to be frequency aware > > board/sbc8548/ddr.c | 77 +++++++++++++++++++++++ > board/sbc8548/law.c | 16 +++++- > board/sbc8548/sbc8548.c | 111 +++++++++++++++------------------ > board/sbc8548/tlb.c | 24 ++++++-- > doc/README.sbc8548 | 79 ++++++++++++++++++++++-- > include/configs/sbc8548.h | 151 +++++++++++++++++++++++++++++++++++---------- > 6 files changed, 355 insertions(+), 103 deletions(-) > > --
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