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Blackfin arch: the load address is not safe to point to as a workaround for ANOMALY 05000281

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Now that we have moved head.S into the init section, the load
address is not safe to point to as a workaround for ANOMALY 05000281

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Robin Getz 2007-10-10 17:28:27 +08:00 committed by Bryan Wu
parent b76f98761a
commit b3f8b92763
1 changed files with 13 additions and 4 deletions
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17
arch/blackfin/mach-common/entry.S
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@ -52,6 +52,15 @@
# define EX_SCRATCH_REG CYCLES
#endif
#if ANOMALY_05000281
ENTRY(_safe_speculative_execution)
NOP;
NOP;
NOP;
jump _safe_speculative_execution;
ENDPROC(_safe_speculative_execution)
#endif
#ifdef CONFIG_EXCPT_IRQ_SYSC_L1
.section .l1.text
#else
@ -685,8 +694,8 @@ ENTRY(_return_from_int)
[p0] = p1;
csync;
#if ANOMALY_05000281
r0.l = lo(CONFIG_BOOT_LOAD);
r0.h = hi(CONFIG_BOOT_LOAD);
r0.l = _safe_speculative_execution;
r0.h = _safe_speculative_execution;
reti = r0;
#endif
r0 = 0x801f (z);
@ -699,8 +708,8 @@ ENDPROC(_return_from_int)
ENTRY(_lower_to_irq14)
#if ANOMALY_05000281
r0.l = lo(CONFIG_BOOT_LOAD);
r0.h = hi(CONFIG_BOOT_LOAD);
r0.l = _safe_speculative_execution;
r0.h = _safe_speculative_execution;
reti = r0;
#endif
r0 = 0x401f;