powerpc/fsl-booke: Remove num_tlbcam_entries

This is a global variable defined in fsl_booke_mmu.c with a value that gets
initialized in assembly code in head_fsl_booke.S.

It's never used.

If some code ever does want to know the number of entries in TLB1, then
"numcams = mfspr(SPRN_TLB1CFG) & 0xfff", is a whole lot simpler than a
global initialized during kernel boot from assembly.

Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 0 insertions, 7 deletions

diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 805f28d30e49..2f32720a44ae 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -389,10 +389,6 @@ skpinv:	addi	r6,r6,1				/* Increment */
 #endif
 #endif
 
-        mfspr   r3,SPRN_TLB1CFG
-        andi.   r3,r3,0xfff
-        lis     r4,num_tlbcam_entries@ha
-        stw     r3,num_tlbcam_entries@l(r4)
 /*
  * Decide what sort of machine this is and initialize the MMU.
  */
diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c
index c9ee59af1006..1971e4ee3d6e 100644
--- a/arch/powerpc/mm/fsl_booke_mmu.c
+++ b/arch/powerpc/mm/fsl_booke_mmu.c
@@ -56,7 +56,6 @@
 
 extern void loadcam_entry(unsigned int index);
 unsigned int tlbcam_index;
-unsigned int num_tlbcam_entries;
 static unsigned long __cam0, __cam1, __cam2;
 
 #define NUM_TLBCAMS     (16)
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index 6f6ee62c2a04..d0bb69dc6278 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -99,8 +99,6 @@ extern unsigned int rtas_data, rtas_size;
 struct hash_pte;
 extern struct hash_pte *Hash, *Hash_end;
 extern unsigned long Hash_size, Hash_mask;
-
-extern unsigned int num_tlbcam_entries;
 #endif
 
 extern unsigned long ioremap_bot;