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Clean up the RAM/FLASH sizes/locations are specified.

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This commit is contained in:
Eric Norum
2005-02-05 19:58:45 +00:00
parent dbcb60a203
commit 0eff7b8ca9
2 changed files with 12 additions and 18 deletions
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26
c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c
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@@ -43,14 +43,6 @@ char *rtems_progname;
#define VME_ONE_BASE 0x30000000 #define VME_ONE_BASE 0x30000000
#define VME_TWO_BASE 0x31000000 #define VME_TWO_BASE 0x31000000
/*
* Cacheable areas
*/
#define SDRAM_BASE 0
#define SDRAM_SIZE (16*1024*1024)
#define FLASH_BASE 0x10000000
#define FLASH_SIZE (4*1024*1024)
/* /*
* CPU-space access * CPU-space access
*/ */
@@ -167,7 +159,8 @@ void bsp_pretasking_hook(void); /* m68k version */
void bsp_start( void ) void bsp_start( void )
{ {
extern char _WorkspaceBase[]; extern char _WorkspaceBase[];
extern char _RamSize[]; extern char _RamBase[], _RamSize[];
extern char _FlashBase[], _FlashSize[];
extern unsigned long _M68k_Ramsize; extern unsigned long _M68k_Ramsize;
_M68k_Ramsize = (unsigned long)_RamSize; /* RAM size set in linker script */ _M68k_Ramsize = (unsigned long)_RamSize; /* RAM size set in linker script */
@@ -208,15 +201,14 @@ void bsp_start( void )
/* /*
* Cache SDRAM and FLASH * Cache SDRAM and FLASH
*/ */
m68k_set_acr0(MCF5XXX_ACR_AB(SDRAM_BASE) | m68k_set_acr0(MCF5XXX_ACR_AB((uint32_t)_RamBase) |
MCF5XXX_ACR_AM(SDRAM_SIZE-1) | MCF5XXX_ACR_AM((uint32_t)_RamSize-1) |
MCF5XXX_ACR_EN | MCF5XXX_ACR_EN |
MCF5XXX_ACR_BWE | MCF5XXX_ACR_BWE |
MCF5XXX_ACR_SM_IGNORE); MCF5XXX_ACR_SM_IGNORE);
m68k_set_acr1(MCF5XXX_ACR_AB(FLASH_BASE) | m68k_set_acr1(MCF5XXX_ACR_AB((uint32_t)_FlashBase) |
MCF5XXX_ACR_AM(FLASH_SIZE-1) | MCF5XXX_ACR_AM((uint32_t)_FlashSize-1) |
MCF5XXX_ACR_EN | MCF5XXX_ACR_EN |
MCF5XXX_ACR_BWE |
MCF5XXX_ACR_SM_IGNORE); MCF5XXX_ACR_SM_IGNORE);
/* /*

4
c/src/lib/libbsp/m68k/uC5282/startup/linkcmds
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@@ -13,11 +13,13 @@
*/ */
/* /*
* Declare some sizes. * Declare some locations and sizes.
*/ */
_RamBase = DEFINED(_RamBase) ? _RamBase : 0x0 ; _RamBase = DEFINED(_RamBase) ? _RamBase : 0x0 ;
_RamSize = DEFINED(_RamSize) ? _RamSize : 16M ; _RamSize = DEFINED(_RamSize) ? _RamSize : 16M ;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0 ; _HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0 ;
_FlashBase = DEFINED(_FlashBase) ? _FlashBase : 0x10000000 ;
_RamSize = DEFINED(_RamSize) ? _RamSize : 4M ;
/* /*
* Location of downloaded (from TFTP or flash) file * Location of downloaded (from TFTP or flash) file