From 99d95bbd48f43dafdcd0540eb0da26c5655d7f33 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 14 Jul 2008 17:04:14 +0800
Subject: [PATCH] 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>
---
 arch/blackfin/Kconfig                      |  7 +------
 arch/blackfin/kernel/cplb-nompu/cplbinit.c |  6 +-----
 arch/blackfin/kernel/setup.c               | 14 +++++---------
 arch/blackfin/mach-common/arch_checks.c    |  6 ------
 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