diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/tqm8xx/start/start.S')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/tqm8xx/start/start.S | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/c/src/lib/libbsp/powerpc/tqm8xx/start/start.S b/c/src/lib/libbsp/powerpc/tqm8xx/start/start.S index 84754b69d9..92bda3fd6d 100644 --- a/c/src/lib/libbsp/powerpc/tqm8xx/start/start.S +++ b/c/src/lib/libbsp/powerpc/tqm8xx/start/start.S @@ -25,9 +25,12 @@ .extern boot_card -.section ".entry" -PUBLIC_VAR (start) -start: +PUBLIC_VAR (_start) +PUBLIC_VAR (bsp_interrupt_stack_start) +PUBLIC_VAR (bsp_interrupt_stack_end) + +.section ".bsp_start_text", "ax" +_start: /* * basic CPU setup: @@ -59,12 +62,12 @@ start_1: * ROM or relocatable startup: copy startup code to SDRAM */ /* get start address of text section in RAM */ - LA r29, bsp_section_text_start + LA r29, bsp_section_text_begin /* get start address of text section in ROM (add reloc offset) */ add r30, r20, r29 /* get size of startup code */ LA r28, end_reloc_startup - LA r31, bsp_section_text_start + LA r31, bsp_section_text_begin sub 28,r28,r31 /* copy startup code from ROM to RAM location */ bl copy_image @@ -85,7 +88,7 @@ copy_rest_of_text: /* get start address of text section in ROM (add reloc offset) */ add r30, r20, r29 /* get size of rest of code */ - LA r28, bsp_section_text_start + LA r28, bsp_section_text_begin LA r31, bsp_section_text_size add r28,r28,r31 sub r28,r28,r29 @@ -95,7 +98,7 @@ copy_rest_of_text: * ROM or relocatable startup: copy data to SDRAM */ /* get start address of data section in RAM */ - LA r29, bsp_section_data_start + LA r29, bsp_section_data_begin /* get start address of data section in ROM (add reloc offset) */ add r30, r20, r29 /* get size of RAM image */ @@ -108,7 +111,7 @@ start_code_in_ram: /* * ROM/RAM startup: clear bss in SDRAM */ - LA r3, bsp_section_bss_start /* get start address of bss section */ + LA r3, bsp_section_bss_begin /* get start address of bss section */ LWI r4, bsp_section_bss_size /* get size of bss section */ bl mpc8xx_zero_4 /* Clear the bss section */ /* @@ -116,7 +119,7 @@ start_code_in_ram: */ /* Set stack pointer (common for RAM/ROM startup) */ - LA r1, bsp_section_text_start + LA r1, bsp_section_text_begin addi r1, r1, -0x10 /* Set up stack pointer = beginning of text section - 0x10 */ /* Create NULL */ @@ -282,3 +285,10 @@ mpc8xx_zero_4_tail: blr end_reloc_startup: + + /* Interrupt stack */ + .section ".bsp_rwextra", "aw", @nobits + .align 4 +bsp_interrupt_stack_start: + .space 32768 +bsp_interrupt_stack_end: |