diff options
Diffstat (limited to 'arch/arc/cpu/arc700/start.S')
| -rw-r--r-- | arch/arc/cpu/arc700/start.S | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/arch/arc/cpu/arc700/start.S b/arch/arc/cpu/arc700/start.S index 2318282..01cfba4 100644 --- a/arch/arc/cpu/arc700/start.S +++ b/arch/arc/cpu/arc700/start.S @@ -88,11 +88,11 @@ #endif .endm +.section .ivt, "ax",@progbits .align 4 -.globl _start -_start: +_ivt: /* Critical system events */ - j reset /* 0 - 0x000 */ + j _start /* 0 - 0x000 */ j memory_error /* 1 - 0x008 */ j instruction_error /* 2 - 0x010 */ @@ -110,6 +110,28 @@ _start: j EV_Trap /* 0x128, Trap exception (0x25) */ j EV_Extension /* 0x130, Extn Intruction Excp (0x26) */ +.text +.globl _start +_start: + /* Setup interrupt vector base that matches "__text_start" */ + sr __ivt_start, [ARC_AUX_INTR_VEC_BASE] + + /* Setup stack pointer */ + mov %sp, CONFIG_SYS_INIT_SP_ADDR + mov %fp, %sp + + /* Clear bss */ + mov %r0, __bss_start + mov %r1, __bss_end + +clear_bss: + st.ab 0, [%r0, 4] + brlt %r0, %r1, clear_bss + + /* Zero the one and only argument of "board_init_f" */ + mov_s %r0, 0 + j board_init_f + memory_error: SAVE_ALL_SYS SAVE_EXCEPTION_SOURCE @@ -164,27 +186,6 @@ EV_Extension: mov %r0, %sp j do_extension - -reset: - /* Setup interrupt vector base that matches "__text_start" */ - sr __text_start, [ARC_AUX_INTR_VEC_BASE] - - /* Setup stack pointer */ - mov %sp, CONFIG_SYS_INIT_SP_ADDR - mov %fp, %sp - - /* Clear bss */ - mov %r0, __bss_start - mov %r1, __bss_end - -clear_bss: - st.ab 0, [%r0, 4] - brlt %r0, %r1, clear_bss - - /* Zero the one and only argument of "board_init_f" */ - mov_s %r0, 0 - j board_init_f - /* * void relocate_code (addr_sp, gd, addr_moni) * |