altos: Add program flash function

[fw/altos] / src / stm / altos-loader.ld

diff --git a/src/stm/altos-loader.ld b/src/stm/altos-loader.ld
index 2d71b4eeeb070511e5a47a01b226f2ed2552687f..50a425c75309f2cf203bf25d200f50e2706cbcfe 100644 (file)
--- a/src/stm/altos-loader.ld
+++ b/src/stm/altos-loader.ld
@@ -16,8 +16,8 @@
  */
 
 MEMORY {
-       rom (rx) : ORIGIN = 0x08000000, LENGTH = 8K
-       ram (!w) : ORIGIN = 0x20000000, LENGTH = 16K
+       rom : ORIGIN = 0x08000000, LENGTH = 8K
+       ram : ORIGIN = 0x20000000, LENGTH = 16K
 }
 
 INCLUDE registers.ld
@@ -29,7 +29,7 @@ SECTIONS {
         * Rom contents
         */
 
-       .text ORIGIN(rom) : {
+       .text : {
                __text_start__ = .;
                *(.interrupt)   /* Interrupt vectors */
 
@@ -38,26 +38,35 @@ SECTIONS {
                ao_romconfig.o(.romconfig*)
                ao_product.o(.romconfig*)
 
-               *(.text*)       /* Executable code */
-               *(.rodata*)     /* Constants */
+               *(.text)        /* Executable code */
+               *(.rodata)      /* Constants */
 
        } > rom
 
        .ARM.exidx : {
                *(.ARM.exidx* .gnu.linkonce.armexidx.*)
-               __text_end__ = .;
        } > rom
+       __text_end__ = .;
+
+       /* Functions placed in RAM (required for flashing) */
+       .textram : {
+               __text_ram_start = .;
+               __data_start__ = .;
+               *(.text.ram)
+               . = ALIGN(4);
+       } >ram AT>rom
+       __text_ram_end = .;
 
        /* Data -- relocated to RAM, but written to ROM
         */
-       .data ORIGIN(ram) : AT (ADDR(.ARM.exidx) + SIZEOF (.ARM.exidx)) {
-               __data_start__ = .;
+       .data : {
                *(.data)        /* initialized data */
-               __data_end__ = .;
-               __bss_start__ = .;
-       } >ram
+               . = ALIGN (4);
+       } >ram AT>rom
+       __data_end__ = .;
 
        .bss : {
+               __bss_start__ = .;
                *(.bss)
                *(COMMON)
                __bss_end__ = .;