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>

4 files changed, 7 insertions, 26 deletions

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index d0f7ff3dc088..c602727d1a9a 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -310,11 +310,6 @@ config BFIN_KERNEL_CLOCK
           are also not changed, and the Bootloader does 100% of the hardware
           configuration.
 
-config MEM_SIZE
-        int "SDRAM Memory Size in MBytes"
-        depends on BFIN_KERNEL_CLOCK
-        default 64
-
 config PLL_BYPASS
         bool "Bypass PLL"
         depends on BFIN_KERNEL_CLOCK
@@ -376,7 +371,7 @@ config SCLK_DIV
 
 config MAX_MEM_SIZE
         int "Max SDRAM Memory Size in MBytes"
-        depends on !BFIN_KERNEL_CLOCK && !MPU
+        depends on !MPU
         default 512
         help
           This is the max memory size that the kernel will create CPLB
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 6be0c50122e8..224e7cc30bc5 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -26,11 +26,7 @@
 #include <asm/cplb.h>
 #include <asm/cplbinit.h>
 
-#ifdef CONFIG_MAX_MEM_SIZE
-# define CPLB_MEM CONFIG_MAX_MEM_SIZE
-#else
-# define CPLB_MEM CONFIG_MEM_SIZE
-#endif
+#define CPLB_MEM CONFIG_MAX_MEM_SIZE
 
 /*
 * Number of required data CPLB switchtable entries
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();
 }
diff --git a/arch/blackfin/mach-common/arch_checks.c b/arch/blackfin/mach-common/arch_checks.c
index caaab49e9cfa..f9160d83b91f 100644
--- a/arch/blackfin/mach-common/arch_checks.c
+++ b/arch/blackfin/mach-common/arch_checks.c
@@ -53,9 +53,3 @@
 # endif
 
 #endif /* CONFIG_BFIN_KERNEL_CLOCK */
-
-#ifdef CONFIG_MEM_SIZE
-#if (CONFIG_MEM_SIZE % 4)
-#error "SDRAM mem size must be multible of 4MB"
-#endif
-#endif