Commit 8c11bffa authored by Jesper Nilsson's avatar Jesper Nilsson

CRIS v10: Update rescue head.s

- Correct whitespace problems.
- Add ifdef for ETRAX_AXISFLASHMAP to avoid compile error when not set.
parent 63e6b9a0
/* $Id: head.S,v 1.7 2005/03/07 12:11:06 starvik Exp $
*
/*
* Rescue code, made to reside at the beginning of the
* flash-memory. when it starts, it checks a partition
* table at the first sector after the rescue sector.
......@@ -60,9 +59,11 @@
* During the wait for serial input, the status LED will flash so the
* user knows something went wrong.
*
* Copyright (C) 1999, 2000, 2001, 2002, 2003 Axis Communications AB
* Copyright (C) 1999-2007 Axis Communications AB
*/
#ifdef CONFIG_ETRAX_AXISFLASHMAP
#define ASSEMBLER_MACROS_ONLY
#include <asm/arch/sv_addr_ag.h>
......@@ -118,7 +119,7 @@
;; This is the entry point of the rescue code
;; 0x80000000 if loaded in flash (as it should be)
;; since etrax actually starts at address 2 when booting from flash, we
;; Since etrax actually starts at address 2 when booting from flash, we
;; put a nop (2 bytes) here first so we dont accidentally skip the di
nop
......@@ -128,10 +129,11 @@
in_cache:
;; first put a jump test to give a possibility of upgrading the rescue code
;; without erasing/reflashing the sector. we put a longword of -1 here and if
;; it is not -1, we jump using the value as jump target. since we can always
;; change 1's to 0's without erasing the sector, it is possible to add new
;; First put a jump test to give a possibility of upgrading the
;; rescue code without erasing/reflashing the sector.
;; We put a longword of -1 here and if it is not -1, we jump using
;; the value as jump target. Since we can always change 1's to 0's
;; without erasing the sector, it is possible to add new
;; code after this and altering the jumptarget in an upgrade.
jtcd: move.d [jumptarget], $r0
......@@ -214,7 +216,6 @@ bosse: move.d [$r3+], $r5 ; checksum
nop
move.d $r1, $r7 ; remember boot partition offset
1:
add.d PTABLE_START, $r1
jsr checksum ; checksum the partition
......@@ -302,7 +303,8 @@ wait_ser:
;; jump into downloaded code
move.d RAM_INIT_MAGIC, $r8 ; Tell next product that DRAM is initialized
move.d RAM_INIT_MAGIC, $r8 ; Tell next product that DRAM is
; initialized
jump CODE_START
flash_ok:
......@@ -313,7 +315,8 @@ flash_ok:
nop
move.d PTABLE_START, $r7; otherwise use the ptable start
1:
move.d RAM_INIT_MAGIC, $r8 ; Tell next product that DRAM is initialized
move.d RAM_INIT_MAGIC, $r8 ; Tell next product that DRAM is
; initialized
jump $r7 ; boot!
......@@ -327,7 +330,7 @@ checksum:
moveq 0, $r0
moveq CONFIG_ETRAX_FLASH1_SIZE, $r6
;; If the first physical flash memory is exceeded wrap to the second one.
;; If the first physical flash memory is exceeded wrap to the second one
btstq 26, $r1 ; Are we addressing first flash?
bpl 1f
nop
......@@ -351,3 +354,5 @@ checksum:
3: move.d MEM_CSE1_START, $r1 ; wrap to second flash
ba 2b
nop
#endif
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