diff options
Diffstat (limited to 'cpu/mcf532x')
| -rw-r--r-- | cpu/mcf532x/start.S | 77 |
1 files changed, 38 insertions, 39 deletions
diff --git a/cpu/mcf532x/start.S b/cpu/mcf532x/start.S index d36d076..acd3494 100644 --- a/cpu/mcf532x/start.S +++ b/cpu/mcf532x/start.S @@ -31,7 +31,6 @@ #define _START _start #define _FAULT _fault - #define SAVE_ALL \ move.w #0x2700,%sr; /* disable intrs */ \ subl #60,%sp; /* space for 15 regs */ \ @@ -42,7 +41,6 @@ addl #60,%sp; /* space for 15 regs */ \ rte; - .text /* * Vector table. This is used for initial platform startup. @@ -50,35 +48,35 @@ */ _vectors: -INITSP: .long 0x00000000 /* Initial SP */ -INITPC: .long _START /* Initial PC */ -vector02: .long _FAULT /* Access Error */ -vector03: .long _FAULT /* Address Error */ -vector04: .long _FAULT /* Illegal Instruction */ -vector05: .long _FAULT /* Reserved */ -vector06: .long _FAULT /* Reserved */ -vector07: .long _FAULT /* Reserved */ -vector08: .long _FAULT /* Privilege Violation */ -vector09: .long _FAULT /* Trace */ -vector0A: .long _FAULT /* Unimplemented A-Line */ -vector0B: .long _FAULT /* Unimplemented F-Line */ -vector0C: .long _FAULT /* Debug Interrupt */ -vector0D: .long _FAULT /* Reserved */ -vector0E: .long _FAULT /* Format Error */ -vector0F: .long _FAULT /* Unitialized Int. */ - -/* Reserved */ +INITSP: .long 0x00000000 /* Initial SP */ +INITPC: .long _START /* Initial PC */ +vector02: .long _FAULT /* Access Error */ +vector03: .long _FAULT /* Address Error */ +vector04: .long _FAULT /* Illegal Instruction */ +vector05: .long _FAULT /* Reserved */ +vector06: .long _FAULT /* Reserved */ +vector07: .long _FAULT /* Reserved */ +vector08: .long _FAULT /* Privilege Violation */ +vector09: .long _FAULT /* Trace */ +vector0A: .long _FAULT /* Unimplemented A-Line */ +vector0B: .long _FAULT /* Unimplemented F-Line */ +vector0C: .long _FAULT /* Debug Interrupt */ +vector0D: .long _FAULT /* Reserved */ +vector0E: .long _FAULT /* Format Error */ +vector0F: .long _FAULT /* Unitialized Int. */ + +/* Reserved */ vector10_17: .long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT -vector18: .long _FAULT /* Spurious Interrupt */ -vector19: .long _FAULT /* Autovector Level 1 */ -vector1A: .long _FAULT /* Autovector Level 2 */ -vector1B: .long _FAULT /* Autovector Level 3 */ -vector1C: .long _FAULT /* Autovector Level 4 */ -vector1D: .long _FAULT /* Autovector Level 5 */ -vector1E: .long _FAULT /* Autovector Level 6 */ -vector1F: .long _FAULT /* Autovector Level 7 */ +vector18: .long _FAULT /* Spurious Interrupt */ +vector19: .long _FAULT /* Autovector Level 1 */ +vector1A: .long _FAULT /* Autovector Level 2 */ +vector1B: .long _FAULT /* Autovector Level 3 */ +vector1C: .long _FAULT /* Autovector Level 4 */ +vector1D: .long _FAULT /* Autovector Level 5 */ +vector1E: .long _FAULT /* Autovector Level 6 */ +vector1F: .long _FAULT /* Autovector Level 7 */ /* TRAP #0 - #15 */ vector20_2F: @@ -126,9 +124,9 @@ vector192_255: _start: nop nop - move.w #0x2700,%sr /* Mask off Interrupt */ + move.w #0x2700,%sr /* Mask off Interrupt */ - /* Set vector base register at the beginning of the Flash */ + /* Set vector base register at the beginning of the Flash */ move.l #CFG_FLASH_BASE, %d0 movec %d0, %VBR @@ -149,14 +147,15 @@ _start: move.l %d0, (%a1) move.l %d0, (%a2) - /* set stackpointer to end of internal ram to get some stackspace for the first c-code */ + /* set stackpointer to end of internal ram to get some stackspace for the + first c-code */ move.l #(CFG_INIT_RAM_ADDR + CFG_INIT_SP_OFFSET), %sp clr.l %sp@- - move.l #__got_start, %a5 /* put relocation table address to a5 */ + move.l #__got_start, %a5 /* put relocation table address to a5 */ - bsr cpu_init_f /* run low-level CPU init code (from flash) */ - bsr board_init_f /* run low-level board init code (from flash) */ + bsr cpu_init_f /* run low-level CPU init code (from flash) */ + bsr board_init_f /* run low-level board init code (from flash) */ /* board_init_f() does not return */ @@ -269,14 +268,14 @@ _int_handler: icache_enable: move.l #0x01000000, %d0 /* Invalidate cache cmd */ movec %d0, %CACR /* Invalidate cache */ - move.l #(CFG_SDRAM_BASE + 0xc000), %d0 /* Setup cache mask */ + move.l #(CFG_SDRAM_BASE + 0xc000), %d0 /* Setup cache mask */ movec %d0, %ACR0 /* Enable cache */ - move.l #(CFG_CS0_BASE + 0xc000), %d0 /* Setup cache mask */ + move.l #(CFG_CS0_BASE + 0x0000), %d0 /* Setup cache mask */ movec %d0, %ACR1 /* Enable cache */ - /*move.l #0x81000100, %d0*/ /* Setup cache mask */ - move.l #0x81000100, %d0 /* Setup cache mask */ + move.l #0x80000200, %d0 /* Setup cache mask */ movec %d0, %CACR /* Enable cache */ + nop move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-8), %a1 moveq #1, %d0 @@ -304,7 +303,7 @@ icache_status: .globl icache_invalid icache_invalid: - move.l #0x00000100, %d0 /* Setup cache mask */ + move.l #0x01000000, %d0 /* Setup cache mask */ movec %d0, %CACR /* Enable cache */ rts |