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added a 1 Meg page as very last RAM page to handle uncached memory for drivers. This moved the BaS RAM area to the second last page of memory

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This commit is contained in:
Markus Fröschle
2013-12-22 16:08:18 +00:00
parent 94ff279838
commit f6984e68b1
4 changed files with 36 additions and 13 deletions
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17
BaS_gcc/bas.lk.in
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@@ -19,7 +19,8 @@ MEMORY
/*
* target to copy BaS data segment to. 1M should be enough for now
*/
bas_ram (WX) : ORIGIN = SDRAM_START + SDRAM_SIZE - 0x00100000, LENGTH = 0x00100000
bas_ram (WX) : ORIGIN = SDRAM_START + SDRAM_SIZE - 0x00200000, LENGTH = 0x00100000
driver_ram (WX) : ORIGIN = SDRAM_START + SDRAM_SIZE - 0x00100000, LENGTH = 0x00100000
}
SECTIONS
@@ -78,15 +79,11 @@ SECTIONS
*(.bss)
__BAS_BSS_END = .;
#endif /* COMPILE_RAM */
#if (FORMAT == elf32-m68k)
*(.rodata)
*(.rodata.*)
#endif
#ifdef COMPILE_RAM
. = ALIGN(16);
_driver_mem_buffer = .;
// . = . + DRIVER_MEM_BUFFER_SIZE
#endif /* COMPILE_RAM */
} > bas_rom
#if (TARGET_ADDRESS == BOOTFLASH_BASE_ADDRESS)
@@ -108,11 +105,15 @@ SECTIONS
__BAS_BSS_END = .;
. = ALIGN(16);
_driver_mem_buffer = .;
//. = . + DRIVER_MEM_BUFFER_SIZE;
} > bas_ram
#endif
.driver_memory :
{
_driver_mem_buffer = .;
//. = . + DRIVER_MEM_BUFFER_SIZE;
} > driver_ram
/*
* Global memory map
*/