diff options
| author | Scott Wood <scottwood@freescale.com> | 2009-03-31 17:49:36 -0500 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2009-04-01 16:48:57 -0500 |
| commit | c123098035be8bae3859bbfbd06861f197c07631 (patch) | |
| tree | 3a4c38940b7021d505df654c6b4d9c7880751e0c /include/configs/MVBLM7.h | |
| parent | ed9953d6903c9673135a96ae1644f61cb0eac5ce (diff) | |
mpc83xx: Set guarded bit on BAT that covers the end of the address space
The mpc8313erdb board currently sets DBAT6 to cover all of the final 256MiB of
address space; however, not all of this space is covered by a device. In
particular, flash sits at 0xfe000000-0xfe7fffff, and nothing is mapped
at the far end of the address space.
In zlib, there is a loop that references p[-1] if p is non-NULL. Under
some circumstances, this leads to the CPU speculatively loading from
0xfffffff8 if p is NULL. This leads to a machine check.
Signed-off-by: Scott Wood <scottwood@freescale.com>
continuation to the remaining mpc83xx boards that suffer from the same problem.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'include/configs/MVBLM7.h')
| -rw-r--r-- | include/configs/MVBLM7.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/configs/MVBLM7.h b/include/configs/MVBLM7.h index 4ecf8068ecf..b321825c953 100644 --- a/include/configs/MVBLM7.h +++ b/include/configs/MVBLM7.h @@ -360,7 +360,8 @@ #define CONFIG_SYS_IBAT5U (CONFIG_SYS_IMMR | BATU_BL_256M | BATU_VS | BATU_VP) /* stack in DCACHE 0xFDF00000 & FLASH @ 0xFF800000 */ -#define CONFIG_SYS_IBAT6L (0xF0000000 | BATL_PP_10 | BATL_MEMCOHERENCE) +#define CONFIG_SYS_IBAT6L (0xF0000000 | BATL_PP_10 | BATL_MEMCOHERENCE | \ + BATL_GUARDEDSTORAGE) #define CONFIG_SYS_IBAT6U (0xF0000000 | BATU_BL_256M | BATU_VS | BATU_VP) #define CONFIG_SYS_IBAT7L 0 #define CONFIG_SYS_IBAT7U 0 |