ARC: RIP @running_on_hw

* No active users of this flag anymore

* flag itself was no longer usable with new simualtor which acts just like
  hardware, not providing the special chip-id = 0xffff which good old
  ISS used to do.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

3 files changed, 0 insertions, 13 deletions

diff --git a/arch/arc/include/asm/setup.h b/arch/arc/include/asm/setup.h
index e10f8cef56a8..6e3ef5ba4f74 100644
--- a/arch/arc/include/asm/setup.h
+++ b/arch/arc/include/asm/setup.h
@@ -29,7 +29,6 @@ struct cpuinfo_data {
 };
 
 extern int root_mountflags, end_mem;
-extern int running_on_hw;
 
 void setup_processor(void);
 void __init setup_arch_memory(void);
diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S
index 4d2481bd8b98..b0e8666fdccc 100644
--- a/arch/arc/kernel/head.S
+++ b/arch/arc/kernel/head.S
@@ -91,16 +91,6 @@ stext:
         st      r0, [@uboot_tag]
         st      r2, [@uboot_arg]
 
-        ; Identify if running on ISS vs Silicon
-        ;       IDENTITY Reg [ 3  2  1  0 ]
-        ;       (chip-id)      ^^^^^            ==> 0xffff for ISS
-        lr      r0, [identity]
-        lsr     r3, r0, 16
-        cmp     r3, 0xffff
-        mov.z   r4, 0
-        mov.nz  r4, 1
-        st      r4, [@running_on_hw]
-
         ; setup "current" tsk and optionally cache it in dedicated r25
         mov     r9, @init_task
         SET_CURR_TASK_ON_CPU  r9, r0    ; r9 = tsk, r0 = scratch
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 686e3fae4420..8fccf0328ad0 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -30,8 +30,6 @@
 
 #define FIX_PTR(x)  __asm__ __volatile__(";" : "+r"(x))
 
-int running_on_hw = 1;  /* vs. on ISS */
-
 /* Part of U-boot ABI: see head.S */
 int __initdata uboot_tag;
 char __initdata *uboot_arg;