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>

diff --git a/arch/arc/include/asm/setup.h b/arch/arc/include/asm/setup.h
index e10f8ce..6e3ef5b 100644 (file)
--- 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 4d2481b..b0e8666 100644 (file)
--- 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 686e3fa..8fccf03 100644 (file)
--- 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;