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(-)
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c index 2e0749d..ce51c8f 100644 --- a/arch/powerpc/lib/board.c +++ b/arch/powerpc/lib/board.c @@ -645,6 +645,17 @@ void board_init_r (gd_t *id, ulong dest_addr) gd->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE; #endif
+#ifdef CONFIG_SYS_EXTRA_ENV_RELOC
- /*
* Some systems need to relocate the env_addr pointer early because the* location its point to will get invalidated before env_relocate is
^^^^^^^^^^^^^^^^^^^^^^
Not to nitpick, but please correct this - I think you meant "location it points to"?
-B