ARC: uncached base is hard constant for ARC, don't save it

ioremap already uses the hard define, just make sure BCR value matches
that

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

2 files changed, 2 insertions, 3 deletions

diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index 3ab66fcd9df1..336a9f694c2e 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -320,7 +320,6 @@ struct cpuinfo_arc {
         struct bcr_isa isa;
         struct bcr_timer timers;
         unsigned int vec_base;
-        unsigned int uncached_base;
         struct cpuinfo_arc_ccm iccm, dccm;
         struct {
                 unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, pad1:3,
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index c6e8b72ff293..96d44805ea56 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -54,7 +54,7 @@ static void read_arc_build_cfg_regs(void)
         cpu->vec_base = read_aux_reg(AUX_INTR_VEC_BASE);
 
         READ_BCR(ARC_REG_D_UNCACH_BCR, uncached_space);
-        cpu->uncached_base = uncached_space.start << 24;
+        BUG_ON((uncached_space.start << 24) != ARC_UNCACHED_ADDR_SPACE);
 
         READ_BCR(ARC_REG_MUL_BCR, cpu->extn_mpy);
 
@@ -218,7 +218,7 @@ static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
 
         n += scnprintf(buf + n, len - n,
                        "Vector Table\t: %#x\nUncached Base\t: %#x\n",
-                       cpu->vec_base, cpu->uncached_base);
+                       cpu->vec_base, ARC_UNCACHED_ADDR_SPACE);
 
         if (cpu->extn.fpu_sp || cpu->extn.fpu_dp)
                 n += scnprintf(buf + n, len - n, "FPU\t\t: %s%s\n",