.globl _TEXT_BASE
_TEXT_BASE:
+#ifdef CONFIG_NAND_SPL /* deprecated, use instead CONFIG_SPL_BUILD */
.word CONFIG_SYS_TEXT_BASE
+#else
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
+ .word CONFIG_SPL_TEXT_BASE
+#else
+ .word CONFIG_SYS_TEXT_BASE
+#endif
+#endif
/*
* Below variable is very important because we use MMU in U-Boot.
.globl _bss_end_ofs
_bss_end_ofs:
+ .word __bss_end - _start
+
+.globl _end_ofs
+_end_ofs:
.word _end - _start
/* IRQ stack memory (calculated at run-time) + 8 bytes */
*/
bl lowlevel_init /* go setup pll,mux,memory */
-/* Set stackpointer in internal RAM to call board_init_f */
-call_board_init_f:
- ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
- bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
- ldr r0,=0x00000000
- bl board_init_f
+ bl _main
/*------------------------------------------------------------------------------*/
/*
* void relocate_code (addr_sp, gd, addr_moni)
*
- * This "function" does not return, instead it continues in RAM
- * after relocating the monitor code.
- *
+ * This function relocates the monitor code.
*/
.globl relocate_code
relocate_code:
mov r5, r1 /* save addr of gd */
mov r6, r2 /* save addr of destination */
- /* Set up the stack */
-stack_setup:
- mov sp, r4
-
adr r0, _start
- cmp r0, r6
- beq clear_bss /* skip relocation */
+ subs r9, r6, r0 /* r9 <- relocation offset */
+ beq relocate_done /* skip relocation */
mov r1, r6 /* r1 <- scratch for copy_loop */
- ldr r2, _TEXT_BASE
ldr r3, _bss_start_ofs
add r2, r0, r3 /* r2 <- source end address */
copy_loop:
- ldmia r0!, {r9-r10} /* copy from source address [r0] */
- stmia r1!, {r9-r10} /* copy to target address [r1] */
+ ldmia r0!, {r10-r11} /* copy from source address [r0] */
+ stmia r1!, {r10-r11} /* copy to target address [r1] */
cmp r0, r2 /* until source end address [r2] */
blo copy_loop
-#ifndef CONFIG_PRELOADER
+#ifndef CONFIG_SPL_BUILD
/*
* fix .rel.dyn relocations
*/
ldr r0, _TEXT_BASE /* r0 <- Text base */
- sub r9, r6, r0 /* r9 <- relocation offset */
ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */
add r10, r10, r0 /* r10 <- sym table in FLASH */
ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */
mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */
add r1, r10, r1 /* r1 <- address of symbol in table */
ldr r1, [r1, #4] /* r1 <- symbol value */
- add r1, r9 /* r1 <- relocated sym addr */
+ add r1, r1, r9 /* r1 <- relocated sym addr */
b fixnext
fixrel:
/* relative fix: increase location by offset */
skip_hw_init:
#endif
-clear_bss:
-#ifndef CONFIG_PRELOADER
- ldr r0, _bss_start_ofs
- ldr r1, _bss_end_ofs
- ldr r3, _TEXT_BASE /* Text base */
- mov r4, r6 /* reloc addr */
- add r0, r0, r4
- add r1, r1, r4
- mov r2, #0x00000000 /* clear */
-
-clbss_l:str r2, [r0] /* clear loop... */
- add r0, r0, #4
- cmp r0, r1
- bne clbss_l
-
- bl coloured_LED_init
- bl red_LED_on
-#endif
-
-/*
- * We are done. Do not return, instead branch to second part of board
- * initialization, now running from RAM.
- */
-#ifdef CONFIG_NAND_SPL
- ldr pc, _nand_boot
-
-_nand_boot: .word nand_boot
-#else
- ldr r0, _board_init_r_ofs
- adr r1, _start
- add lr, r0, r1
- add lr, lr, r9
- /* setup parameters for board_init_r */
- mov r0, r5 /* gd_t */
- mov r1, r6 /* dest_addr */
- /* jump to it ... */
- mov pc, lr
+relocate_done:
-_board_init_r_ofs:
- .word board_init_r - _start
-#endif
+ bx lr
_rel_dyn_start_ofs:
.word __rel_dyn_start - _start
.word mmu_table
#endif
+ .globl c_runtime_cpu_setup
+c_runtime_cpu_setup:
+
+ mov pc, lr
+
#ifndef CONFIG_NAND_SPL
/*
* we assume that cache operation is done before. (eg. cleanup_before_linux())