Update from 2013.01 to 2013.07

[karo-tx-uboot.git] / arch / powerpc / cpu / ppc4xx / start.S

diff --git a/arch/powerpc/cpu/ppc4xx/start.S b/arch/powerpc/cpu/ppc4xx/start.S
index 7aef43b210de25ca5ded376a399e1804ed758bbb..57ae1d38206288697e3aedc92ab0d5fcb332bd83 100644 (file)
--- a/arch/powerpc/cpu/ppc4xx/start.S
+++ b/arch/powerpc/cpu/ppc4xx/start.S
@@ -232,7 +232,7 @@
  *
  * Use r12 to access the GOT
  */
-#if !defined(CONFIG_NAND_SPL)
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
        START_GOT
        GOT_ENTRY(_GOT2_TABLE_)
        GOT_ENTRY(_FIXUP_TABLE_)
@@ -243,12 +243,13 @@
        GOT_ENTRY(transfer_to_handler)
 
        GOT_ENTRY(__init_end)
-       GOT_ENTRY(__bss_end__)
+       GOT_ENTRY(__bss_end)
        GOT_ENTRY(__bss_start)
        END_GOT
 #endif /* CONFIG_NAND_SPL */
 
-#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
+#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) && \
+       !defined(CONFIG_SPL_BUILD)
        /*
         * NAND U-Boot image is started from offset 0
         */
@@ -270,6 +271,18 @@
        bl      _start_440
 #endif
 
+#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
+       /*
+        * This is the entry of the real U-Boot from a board port
+        * that supports SPL booting on the PPC4xx. We only need
+        * to call board_init_f() here. Everything else has already
+        * been done in the SPL u-boot version.
+        */
+       GET_GOT                 /* initialize GOT access                */
+       bl      board_init_f    /* run 1st part of board init code (in Flash)*/
+       /* NOTREACHED - board_init_f() does not return */
+#endif
+
 /*
  * 440 Startup -- on reset only the top 4k of the effective
  * address space is mapped in by an entry in the instruction
@@ -539,7 +552,7 @@ tlbnx2:     addi    r4,r4,1         /* Next TLB */
  * r3 - 1st arg to board_init(): IMMP pointer
  * r4 - 2nd arg to board_init(): boot flag
  */
-#ifndef CONFIG_NAND_SPL
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
        .text
        .long   0x27051956              /* U-Boot Magic Number                  */
        .globl  version_string
@@ -612,6 +625,18 @@ _end_of_vectors:
        .globl  _start
 _start:
 
+#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
+       /*
+        * This is the entry of the real U-Boot from a board port
+        * that supports SPL booting on the PPC4xx. We only need
+        * to call board_init_f() here. Everything else has already
+        * been done in the SPL u-boot version.
+        */
+       GET_GOT                 /* initialize GOT access                */
+       bl      board_init_f    /* run 1st part of board init code (in Flash)*/
+       /* NOTREACHED - board_init_f() does not return */
+#endif
+
 /*****************************************************************************/
 #if defined(CONFIG_440)
 
@@ -796,7 +821,9 @@ _start:
 #ifdef CONFIG_NAND_SPL
        bl      nand_boot_common        /* will not return */
 #else
+#ifndef CONFIG_SPL_BUILD
        GET_GOT
+#endif
 
        bl      cpu_init_f      /* run low-level CPU init code     (from Flash) */
        bl      board_init_f
@@ -1080,7 +1107,7 @@ _start:
        /*----------------------------------------------------------------------- */
 
 
-#ifndef CONFIG_NAND_SPL
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
 /*
  * This code finishes saving the registers to the exception frame
  * and jumps to the appropriate handler for the exception.
@@ -1262,6 +1289,7 @@ in32r:
        lwbrx   r3,r0,r3
        blr
 
+#if !defined(CONFIG_SPL_BUILD)
 /*
  * void relocate_code (addr_sp, gd, addr_moni)
  *
@@ -1509,7 +1537,7 @@ clear_bss:
         * Now clear BSS segment
         */
        lwz     r3,GOT(__bss_start)
-       lwz     r4,GOT(__bss_end__)
+       lwz     r4,GOT(__bss_end)
 
        cmplw   0, r3, r4
        beq     7f
@@ -1626,6 +1654,7 @@ __440_msr_continue:
 
        mtlr    r4                      /* restore link register        */
        blr
+#endif /* CONFIG_SPL_BUILD */
 
 #if defined(CONFIG_440)
 /*----------------------------------------------------------------------------+