ENTRY(_start)
MEMORY
{
  TEXT (rx) : ORIGIN = 0x80000, LENGTH = 128K
  RO (r) : ORIGIN = 0xa0000, LENGTH = 128K
  DATA (rw) : ORIGIN = 0x100000, LENGTH = 512K
  RAM (rw) : ORIGIN = 0x180000, LENGTH = 64M
}

SECTIONS
{
  .text : { 
    KEEP(*(.text.boot))
    *(.text)
  } >TEXT
  .rodata : {
    *(.rodata)
  } >RO
  .data : {
    *(.data)
  } >DATA
  .bss : {
    __bss_start = .;
    *(.bss)
    __bss_end = .;
  } >DATA

  __stack_end = ORIGIN(RAM) + LENGTH(RAM);
}

__heap_start = ORIGIN(RAM);
__heap_end = ORIGIN(RAM) + 32M;
__bss_size = (__bss_end - __bss_start)>>3;