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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>
This commit is contained in:
Michael Hennerich 2008-07-14 17:04:14 +08:00 committed by Bryan Wu
parent 96b86e94bc
commit 99d95bbd48
4 changed files with 7 additions and 26 deletions
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7
arch/blackfin/Kconfig
View File

@ -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

6
arch/blackfin/kernel/cplb-nompu/cplbinit.c
View File

@ -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

14
arch/blackfin/kernel/setup.c
View File

@ -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();
}

6
arch/blackfin/mach-common/arch_checks.c
View File

@ -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