Blackfin arch: Remove redundant kernel option

use kernel command line mem and max_mem bootargs to limit
availabe memory instead.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 5 insertions, 9 deletions

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 8efea004aecb..861a1db74df8 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -664,11 +664,8 @@ static __init void setup_bootmem_allocator(void)
 })
 static inline int __init get_mem_size(void)
 {
-#ifdef CONFIG_MEM_SIZE
-        return CONFIG_MEM_SIZE;
-#else
-# if defined(EBIU_SDBCTL)
-#  if defined(BF561_FAMILY)
+#if defined(EBIU_SDBCTL)
+# if defined(BF561_FAMILY)
         int ret = 0;
         u32 sdbctl = bfin_read_EBIU_SDBCTL();
         ret += EBSZ_TO_MEG(sdbctl >>  0);
@@ -676,10 +673,10 @@ static inline int __init get_mem_size(void)
         ret += EBSZ_TO_MEG(sdbctl >> 16);
         ret += EBSZ_TO_MEG(sdbctl >> 24);
         return ret;
-#  else
+# else
         return EBSZ_TO_MEG(bfin_read_EBIU_SDBCTL());
-#  endif
-# elif defined(EBIU_DDRCTL1)
+# endif
+#elif defined(EBIU_DDRCTL1)
         u32 ddrctl = bfin_read_EBIU_DDRCTL1();
         int ret = 0;
         switch (ddrctl & 0xc0000) {
@@ -694,7 +691,6 @@ static inline int __init get_mem_size(void)
                 case DEVWD_16: break;
         }
         return ret;
-# endif
 #endif
         BUG();
 }