1 files changed, 68 insertions, 61 deletions

diff --git a/arch/cris/arch-v10/boot/rescue/head.S b/arch/cris/arch-v10/boot/rescue/head.S
index f223cc0c00bb..6ba7be8ac4a0 100644
--- a/arch/cris/arch-v10/boot/rescue/head.S
+++ b/arch/cris/arch-v10/boot/rescue/head.S
@@ -1,5 +1,4 @@
-/* $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.
@@ -23,20 +22,20 @@
  * Partition table format:
  *
  *     Code transparency:
- * 
+ *
  *     2 bytes    [opcode 'nop']
  *     2 bytes    [opcode 'di']
  *     4 bytes    [opcode 'ba <offset>', 8-bit or 16-bit version]
  *     2 bytes    [opcode 'nop', delay slot]
  *
- *     Table validation (at +10):       
- * 
+ *     Table validation (at +10):
+ *
  *     2 bytes    [magic/version word for partitiontable - 0xef, 0xbe]
  *     2 bytes    [length of all entries plus the end marker]
  *     4 bytes    [checksum for the partitiontable itself]
  *
- *     Entries, each with the following format, last has offset -1:     
- *    
+ *     Entries, each with the following format, last has offset -1:
+ *
  *        4 bytes    [offset in bytes, from start of flash]
  *        4 bytes    [length in bytes of partition]
  *        4 bytes    [checksum, simple longword sum]
@@ -47,9 +46,9 @@
  *     End marker
  *
  *        4 bytes    [-1]
- * 
+ *
  *       10 bytes    [0, padding]
- * 
+ *
  * Bit 0 in flags signifies RW or RO. The rescue code only bothers
  * to check the checksum for RO partitions, since the others will
  * change their data without updating the checksums. A 1 in bit 0
@@ -59,26 +58,29 @@
  *
  * 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>
 
         ;; The partitiontable is looked for at the first sector after the boot
         ;; sector. Sector size is 65536 bytes in all flashes we use.
-                
+
 #define PTABLE_START CONFIG_ETRAX_PTABLE_SECTOR
 #define PTABLE_MAGIC 0xbeef
 
         ;; The normal Etrax100 on-chip boot ROM does serial boot at 0x380000f0.
-        ;; That is not where we put our downloaded serial boot-code. The length is
-        ;; enough for downloading code that loads the rest of itself (after
-        ;; having setup the DRAM etc). It is the same length as the on-chip
-        ;; ROM loads, so the same host loader can be used to load a rescued
-        ;; product as well as one booted through the Etrax serial boot code.
-                
+        ;; That is not where we put our downloaded serial boot-code.
+        ;; The length is enough for downloading code that loads the rest
+        ;; of itself (after having setup the DRAM etc).
+        ;; It is the same length as the on-chip ROM loads, so the same
+        ;; host loader can be used to load a rescued product as well as
+        ;; one booted through the Etrax serial boot code.
+
 #define CODE_START 0x40000000
 #define CODE_LENGTH 784
 
@@ -102,7 +104,7 @@
 #define SERRECC R_SERIAL2_REC_CTRL
 #define SERRDAT R_SERIAL2_REC_DATA
 #define SERSTAT R_SERIAL2_STATUS
-#endif  
+#endif
 #ifdef CONFIG_ETRAX_RESCUE_SER3
 #define SERXOFF R_SERIAL3_XOFF
 #define SERBAUD R_SERIAL3_BAUD
@@ -115,60 +117,61 @@
 #define RAM_INIT_MAGIC 0x56902387
 
         .text
-        
+
         ;; 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     
+        nop
         di
 
         jump    in_cache        ; enter cached area instead
 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
         cmp.d   0xffffffff, $r0
         beq     no_newjump
         nop
-        
+
         jump    [$r0]
 
-jumptarget:     
+jumptarget:
         .dword  0xffffffff      ; can be overwritten later to insert new code
-        
+
 no_newjump:
-#ifdef CONFIG_ETRAX_ETHERNET            
+#ifdef CONFIG_ETRAX_ETHERNET
         ;; Start MII clock to make sure it is running when tranceiver is reset
         move.d 0x3, $r0    ; enable = on, phy = mii_clk
         move.d $r0, [R_NETWORK_GEN_CONFIG]
 #endif
-        
+
         ;; We need to setup the bus registers before we start using the DRAM
 #include "../../lib/dram_init.S"
 
         ;; we now should go through the checksum-table and check the listed
         ;; partitions for errors.
-        
+
         move.d  PTABLE_START, $r3
         move.d  [$r3], $r0
         cmp.d   NOP_DI, $r0     ; make sure the nop/di is there...
         bne     do_rescue
         nop
-        
+
         ;; skip the code transparency block (10 bytes).
 
         addq    10, $r3
-        
+
         ;; check for correct magic
-        
+
         move.w  [$r3+], $r0
         cmp.w   PTABLE_MAGIC, $r0
         bne     do_rescue       ; didn't recognize - trig rescue
@@ -186,11 +189,11 @@ no_newjump:
         cmp.d   $r0, $r4
         bne     do_rescue       ; didn't match - trig rescue
         nop
-        
+
         ;; ptable is ok. validate each entry.
 
         moveq   -1, $r7
-        
+
 ploop:  move.d  [$r3+], $r1     ; partition offset (from ptable start)
         bne     notfirst        ; check if it is the partition containing ptable
         nop                     ; yes..
@@ -199,7 +202,7 @@ ploop:	move.d	[$r3+], $r1	; partition offset (from ptable start)
         sub.d   $r8, $r2        ; minus the ptable length
         ba      bosse
         nop
-notfirst:       
+notfirst:
         cmp.d   -1, $r1         ; the end of the ptable ?
         beq     flash_ok        ;   if so, the flash is validated
         move.d  [$r3+], $r2     ; partition length
@@ -213,47 +216,46 @@ bosse:	move.d	[$r3+], $r5	; checksum
         bpl     1f
         nop
         move.d  $r1, $r7        ; remember boot partition offset
-1:      
-
+1:
         add.d   PTABLE_START, $r1
-        
+
         jsr     checksum        ; checksum the partition
-        
+
         cmp.d   $r0, $r5
         beq     ploop           ; checksums matched, go to next entry
         nop
 
         ;; otherwise fall through to the rescue code.
-        
+
 do_rescue:
         ;; setup port PA and PB default initial directions and data
         ;; (so we can flash LEDs, and so that DTR and others are set)
-        
+
         move.b  CONFIG_ETRAX_DEF_R_PORT_PA_DIR, $r0
         move.b  $r0, [R_PORT_PA_DIR]
         move.b  CONFIG_ETRAX_DEF_R_PORT_PA_DATA, $r0
         move.b  $r0, [R_PORT_PA_DATA]
-        
+
         move.b  CONFIG_ETRAX_DEF_R_PORT_PB_DIR, $r0
         move.b  $r0, [R_PORT_PB_DIR]
         move.b  CONFIG_ETRAX_DEF_R_PORT_PB_DATA, $r0
         move.b  $r0, [R_PORT_PB_DATA]
 
         ;; setup the serial port at 115200 baud
-        
+
         moveq   0, $r0
-        move.d  $r0, [SERXOFF] 
+        move.d  $r0, [SERXOFF]
 
         move.b  0x99, $r0
-        move.b  $r0, [SERBAUD]          ; 115.2kbaud for both transmit and receive
+        move.b  $r0, [SERBAUD]  ; 115.2kbaud for both transmit and receive
 
-        move.b  0x40, $r0               ; rec enable
-        move.b  $r0, [SERRECC] 
+        move.b  0x40, $r0       ; rec enable
+        move.b  $r0, [SERRECC]
 
         moveq   0, $r1          ; "timer" to clock out a LED red flash
         move.d  CODE_START, $r3 ; destination counter
         movu.w  CODE_LENGTH, $r4; length
-        
+
 wait_ser:
         addq    1, $r1
 #ifndef CONFIG_ETRAX_NO_LEDS
@@ -272,20 +274,20 @@ wait_ser:
         nop
 1:      not     $r0             ; clear bit
         and.d   $r0, $r2
-2:      
+2:
 #ifdef CONFIG_ETRAX_PA_LEDS
-        move.b  $r2, [R_PORT_PA_DATA]   
-#endif  
+        move.b  $r2, [R_PORT_PA_DATA]
+#endif
 #ifdef CONFIG_ETRAX_PB_LEDS
-        move.b  $r2, [R_PORT_PB_DATA]   
+        move.b  $r2, [R_PORT_PB_DATA]
 #endif
 #ifdef CONFIG_ETRAX_90000000_LEDS
         move.b  $r2, [0x90000000]
 #endif
 #endif
-        
+
         ;; check if we got something on the serial port
-        
+
         move.b  [SERSTAT], $r0
         btstq   0, $r0          ; data_avail
         bpl     wait_ser
@@ -295,14 +297,15 @@ wait_ser:
 
         move.b  [SERRDAT], $r0
         move.b  $r0, [$r3+]
-        
+
         subq    1, $r4          ; decrease length
         bne     wait_ser
         nop
 
         ;; 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 +316,8 @@ 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 +331,8 @@ 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 +356,5 @@ checksum:
 3:      move.d  MEM_CSE1_START, $r1 ; wrap to second flash
         ba      2b
         nop
+
+#endif