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authorLEROY Christophe <christophe.leroy@c-s.fr>2015-01-20 10:57:33 +0100
committerScott Wood <scottwood@freescale.com>2015-01-29 21:58:01 -0600
commit2374d0af29c154d6d989987a94278caed8c13be5 (patch)
tree47d8aeac4a1697a6973284738f09a79b194bea4a /arch/powerpc/kernel/head_8xx.S
parentdebddd95ec0bb8ac1bbe719b5e4588e453c7b2fc (diff)
downloadlinux-2374d0af29c154d6d989987a94278caed8c13be5.tar.gz
linux-2374d0af29c154d6d989987a94278caed8c13be5.tar.xz
powerpc/8xx: remove remaining unnecessary code in FixupDAR
Since commit 33fb845a6f01 ("powerpc/8xx: Don't use MD_TWC for walk"), MD_EPN and MD_TWC are not writen anymore in FixupDAR so saving r3 has become useless. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'arch/powerpc/kernel/head_8xx.S')
-rw-r--r--arch/powerpc/kernel/head_8xx.S6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 65492d043964..73715cd0de45 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -529,9 +529,6 @@ DARFixed:/* Return from dcbx instruction bug workaround */
/* define if you don't want to use self modifying code */
#define NO_SELF_MODIFYING_CODE
FixupDAR:/* Entry point for dcbx workaround. */
-#ifdef CONFIG_8xx_CPU6
- mtspr SPRN_DAR, r3
-#endif
mtspr SPRN_SPRG_SCRATCH2, r10
/* fetch instruction from memory. */
mfspr r10, SPRN_SRR0
@@ -548,9 +545,6 @@ FixupDAR:/* Entry point for dcbx workaround. */
/* Extract level 2 index */
rlwinm r11, r11, 32 - (PAGE_SHIFT - 2), 32 - PAGE_SHIFT, 29
lwzx r11, r10, r11 /* Get the pte */
-#ifdef CONFIG_8xx_CPU6
- mfspr r3, SPRN_DAR
-#endif
/* concat physical page address(r11) and page offset(r10) */
mfspr r10, SPRN_SRR0
rlwimi r11, r10, 0, 32 - PAGE_SHIFT, 31