On Nov 18, 2010, at 11:21 AM, Kumar Gala wrote:
Some systems need to relocate the env_addr pointer early because the location its point to will get invalidated before env_relocate is called. One example is on systems that might use a L2 or L3 cache in SRAM mode and initialize that cache from SRAM mode back to being a cache in cpu_init_r.
We set this on the 85xx boards that have support for NAND, SPI, or SDHC/MMC boot support as they use a secondary cache in SRAM mode and need the env_addr pointer relocated since we change from SRAM to normal cache mode in cpu_init_r.
Signed-off-by: Kumar Gala galak@kernel.crashing.org
arch/powerpc/lib/board.c | 11 +++++++++++ include/configs/MPC8536DS.h | 1 + include/configs/MPC8569MDS.h | 1 + include/configs/P1_P2_RDB.h | 1 + 4 files changed, 14 insertions(+), 0 deletions(-)
Wolfgang,
I dont think either of us are happy with this solution but not really sure what else to do. Please ack if you're grudgingly ok with this. :)
- k