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| author | Michal Simek <michal.simek@xilinx.com> | 2014-11-04 13:30:14 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2015-01-21 10:33:07 +0100 |
| commit | da931af1b5eaae36dd9e3fb2eaf6b62201ed3a43 (patch) | |
| tree | 51c53fc91a0076fc41505f8673cec6c54a779e8f /arch/microblaze/cpu/start.S | |
| parent | 822d43a6d90223db043d1610895c8e8b82e5ba5b (diff) | |
microblaze: Support stack protection feature
Ensure that stack didn't rewrite important part
of u-boot.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/microblaze/cpu/start.S')
| -rw-r--r-- | arch/microblaze/cpu/start.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/microblaze/cpu/start.S b/arch/microblaze/cpu/start.S index f46603142d..84c29e5409 100644 --- a/arch/microblaze/cpu/start.S +++ b/arch/microblaze/cpu/start.S @@ -23,11 +23,15 @@ _start: mts rmsr, r0 /* disable cache */ + addi r8, r0, __end + mts rslr, r8 #if defined(CONFIG_SPL_BUILD) addi r1, r0, CONFIG_SPL_STACK_ADDR + mts rshr, r1 addi r1, r1, -4 /* Decrement SP to top of memory */ #else addi r1, r0, CONFIG_SYS_INIT_SP_OFFSET + mts rshr, r1 addi r1, r1, -4 /* Decrement SP to top of memory */ /* Find-out if u-boot is running on BIG/LITTLE endian platform |