From b3f8b9276314f4942ef9033aa5f4dc184901d640 Mon Sep 17 00:00:00 2001 From: Robin Getz Date: Wed, 10 Oct 2007 17:28:27 +0800 Subject: [PATCH] Blackfin arch: the load address is not safe to point to as a workaround for ANOMALY 05000281 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 Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/entry.S | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index a56b231d94c..e3ad5802868 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -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; -- 2.41.1