Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'

[karo-tx-uboot.git] / arch / arm / cpu / s3c44b0 / start.S

diff --git a/arch/arm/cpu/s3c44b0/start.S b/arch/arm/cpu/s3c44b0/start.S
index 0063063f45d436914c06c40c71f3766ffff653d6..78183fc19bc40874a341e000277868164d5447f2 100644 (file)
--- a/arch/arm/cpu/s3c44b0/start.S
+++ b/arch/arm/cpu/s3c44b0/start.S
@@ -27,11 +27,10 @@
  * MA 02111-1307 USA
  */
 
-
+#include <asm-offsets.h>
 #include <config.h>
 #include <version.h>
 
-
 /*
  * Jump vector table
  */
@@ -63,23 +62,31 @@ _start:     b       reset
  *************************************************************************
  */
 
+.globl _TEXT_BASE
 _TEXT_BASE:
-       .word   TEXT_BASE
-
-.globl _armboot_start
-_armboot_start:
-       .word _start
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
+       .word   CONFIG_SPL_TEXT_BASE
+#else
+       .word   CONFIG_SYS_TEXT_BASE
+#endif
 
 /*
  * These are defined in the board-specific linker script.
+ * Subtracting _start from them lets the linker put their
+ * relative position in the executable instead of leaving
+ * them null.
  */
-.globl _bss_start
-_bss_start:
-       .word __bss_start
+.globl _bss_start_ofs
+_bss_start_ofs:
+       .word __bss_start - _start
+
+.globl _bss_end_ofs
+_bss_end_ofs:
+       .word __bss_end - _start
 
-.globl _bss_end
-_bss_end:
-       .word _end
+.globl _end_ofs
+_end_ofs:
+       .word _end - _start
 
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */
@@ -93,6 +100,10 @@ FIQ_STACK_START:
        .word 0x0badc0de
 #endif
 
+/* IRQ stack memory (calculated at run-time) + 8 bytes */
+.globl IRQ_STACK_START_IN
+IRQ_STACK_START_IN:
+       .word   0x0badc0de
 
 /*
  * the actual reset code
@@ -104,14 +115,13 @@ reset:
         */
        mrs     r0,cpsr
        bic     r0,r0,#0x1f
-       orr     r0,r0,#0x13
+       orr     r0,r0,#0xd3
        msr     cpsr,r0
 
        /*
         * we do sys-critical inits only at reboot,
         * not when booting from ram!
         */
-
 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
        bl      cpu_init_crit
        /*
@@ -122,53 +132,14 @@ reset:
        bl      lowlevel_init
 #endif
 
-#ifndef CONFIG_SKIP_RELOCATE_UBOOT
-relocate:                              /* relocate U-Boot to RAM           */
-       adr     r0, _start              /* r0 <- current position of code   */
-       ldr     r1, _TEXT_BASE          /* test if we run from flash or RAM */
-       cmp     r0, r1                  /* don't reloc during debug         */
-       beq     stack_setup
-
-       ldr     r2, _armboot_start
-       ldr     r3, _bss_start
-       sub     r2, r3, r2              /* r2 <- size of armboot            */
-       add     r2, r0, r2              /* r2 <- source end address         */
-
-copy_loop:
-       ldmia   r0!, {r3-r10}           /* copy from source address [r0]    */
-       stmia   r1!, {r3-r10}           /* copy to   target address [r1]    */
-       cmp     r0, r2                  /* until source end addreee [r2]    */
-       ble     copy_loop
-
-/*
-       now copy to sram the interrupt vector
-*/
-       adr     r0, real_vectors
-       add     r2, r0, #1024
-       ldr     r1, =0x0c000000
-       add     r1, r1, #0x08
-vector_copy_loop:
-       ldmia   r0!, {r3-r10}
-       stmia   r1!, {r3-r10}
-       cmp     r0, r2
-       ble     vector_copy_loop
-#endif /* CONFIG_SKIP_RELOCATE_UBOOT */
-
-       /* Set up the stack                                                 */
-stack_setup:
-       ldr     r0, _TEXT_BASE          /* upper 128 KiB: relocated uboot   */
-       sub     r0, r0, #CONFIG_SYS_MALLOC_LEN  /* malloc area                      */
-       sub     r0, r0, #CONFIG_SYS_GBL_DATA_SIZE /* bdinfo                        */
-#ifdef CONFIG_USE_IRQ
-       sub     r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
-#endif
-       sub     sp, r0, #12             /* leave 3 words for abort-stack    */
-       bic     sp, sp, #7              /* 8-byte alignment for ABI compliance */
+       bl      _main
 
-       ldr     pc, _start_armboot
+/*------------------------------------------------------------------------------*/
 
-_start_armboot:        .word start_armboot
+       .globl  c_runtime_cpu_setup
+c_runtime_cpu_setup:
 
+       bx      lr
 
 /*
  *************************************************************************