From: Timur Tabi <timur@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/5] powerpc/85xx: add some missing sync instructions in the CCSR relocation code
Date: Mon, 31 Oct 2011 13:30:43 -0500 [thread overview]
Message-ID: <1320085845-10547-3-git-send-email-timur@freescale.com> (raw)
In-Reply-To: <1320085845-10547-1-git-send-email-timur@freescale.com>
Calls to tlbwe and tlbsx should be preceded with an isync/msync pair.
Signed-off-by: Timur Tabi <timur@freescale.com>
---
arch/powerpc/cpu/mpc85xx/start.S | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S
index b5bf1fa..ccb331a 100644
--- a/arch/powerpc/cpu/mpc85xx/start.S
+++ b/arch/powerpc/cpu/mpc85xx/start.S
@@ -363,6 +363,8 @@ purge_old_ccsr_tlb:
li r1, 0
mtspr MAS6, r1 /* Search the current address space and PID */
+ isync
+ msync
tlbsx 0, r8
mfspr r1, MAS1
andis. r2, r1, MAS1_VALID at h /* Check for the Valid bit */
@@ -370,6 +372,8 @@ purge_old_ccsr_tlb:
rlwinm r1, r1, 0, 1, 31 /* Clear Valid bit */
mtspr MAS1, r1
+ isync
+ msync
tlbwe
1:
--
1.7.3.4
next prev parent reply other threads:[~2011-10-31 18:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-31 18:30 [U-Boot] [PATCH 1/5] powerpc/85xx: fix definition of MAS register macros Timur Tabi
2011-10-31 18:30 ` [U-Boot] [PATCH 2/5] powerpc/85xx: fix some comments in the CCSR relocation code Timur Tabi
2011-11-08 14:31 ` Kumar Gala
2011-10-31 18:30 ` Timur Tabi [this message]
2011-11-08 14:32 ` [U-Boot] [PATCH 3/5] powerpc/85xx: add some missing sync instructions " Kumar Gala
2011-10-31 18:30 ` [U-Boot] [PATCH 4/5] powerpc/85xx: verify the current address of CCSR before relocating it Timur Tabi
2011-11-08 14:32 ` Kumar Gala
2011-10-31 18:30 ` [U-Boot] [PATCH 5/5] powerpc/85xx: resize the boot page TLB before relocating CCSR Timur Tabi
2011-11-08 14:32 ` Kumar Gala
2011-11-08 14:31 ` [U-Boot] [PATCH 1/5] powerpc/85xx: fix definition of MAS register macros Kumar Gala
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