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>

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