-#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
-#endif /* CONFIG_SKIP_RELOCATE_UBOOT */
-
-#ifdef CONFIG_ENABLE_MMU
-enable_mmu:
- /* enable domain access */
- ldr r5, =0x0000ffff
- mcr p15, 0, r5, c3, c0, 0 /* load domain access register */
-
- /* Set the TTB register */
- ldr r0, _mmu_table_base
- ldr r1, =CONFIG_SYS_PHY_UBOOT_BASE
- ldr r2, =0xfff00000
- bic r0, r0, r2
- orr r1, r0, r1
- mcr p15, 0, r1, c2, c0, 0
-
- /* Enable the MMU */
- mrc p15, 0, r0, c1, c0, 0
- orr r0, r0, #1 /* Set CR_M to enable MMU */
-
- /* Prepare to enable the MMU */
- adr r1, skip_hw_init
- and r1, r1, #0x3fc
- ldr r2, _TEXT_BASE
- ldr r3, =0xfff00000
- and r2, r2, r3
- orr r2, r2, r1
- b mmu_enable
-
- .align 5
- /* Run in a single cache-line */
-mmu_enable:
-
- mcr p15, 0, r0, c1, c0, 0
- nop
- nop
- mov pc, r2
-skip_hw_init:
-#endif
-
- /* Set up the stack */
-stack_setup:
- ldr r0, =CONFIG_SYS_UBOOT_BASE /* base of copy in DRAM */
- sub r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area */
- sub r0, r0, #CONFIG_SYS_GBL_DATA_SIZE /* bdinfo */
- sub sp, r0, #12 /* leave 3 words for abort-stack */
- bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
-
-clear_bss:
- ldr r0, _bss_start /* find start of bss segment */
- ldr r1, _bss_end /* stop here */
- mov r2, #0 /* clear */
-
-clbss_l:
- str r2, [r0] /* clear loop... */
- add r0, r0, #4
- cmp r0, r1
- ble clbss_l
-
-#ifndef CONFIG_NAND_SPL
- ldr pc, _start_armboot
-
-_start_armboot:
- .word start_armboot
-#else
- b nand_boot
-/* .word nand_boot*/
-#endif
-
-#ifdef CONFIG_ENABLE_MMU
-_mmu_table_base:
- .word mmu_table
-#endif
-
-#ifndef CONFIG_NAND_SPL
-/*
- * we assume that cache operation is done before. (eg. cleanup_before_linux())
- * actually, we don't need to do anything about cache if not use d-cache in
- * U-Boot. So, in this function we clean only MMU. by scsuh
- *
- * void theLastJump(void *kernel, int arch_num, uint boot_params);
- */
-#ifdef CONFIG_ENABLE_MMU
- .globl theLastJump
-theLastJump:
- mov r9, r0
- ldr r3, =0xfff00000
- ldr r4, _TEXT_PHY_BASE
- adr r5, phy_last_jump
- bic r5, r5, r3
- orr r5, r5, r4
- mov pc, r5
-phy_last_jump:
- /*
- * disable MMU stuff
- */
- mrc p15, 0, r0, c1, c0, 0
- bic r0, r0, #0x00002300 /* clear bits 13, 9:8 (--V- --RS) */
- bic r0, r0, #0x00000087 /* clear bits 7, 2:0 (B--- -CAM) */
- orr r0, r0, #0x00000002 /* set bit 2 (A) Align */
- orr r0, r0, #0x00001000 /* set bit 12 (I) I-Cache */
- mcr p15, 0, r0, c1, c0, 0