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| author | Tom Rini <trini@ti.com> | 2013-01-09 08:13:22 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-01-09 08:13:22 -0700 |
| commit | 642ef40bdc95bef829ae3aadc217f829c4c298c4 (patch) | |
| tree | 57d6d5170b904176a2a7018e08a615b8725c8874 /arch/arm/cpu/armv7 | |
| parent | 449485948e6de1869ec39c1559b7b78d85690ea7 (diff) | |
| parent | 61bdb9133593f0f881a57232039296f64bd662ed (diff) | |
| download | u-boot-imx-642ef40bdc95bef829ae3aadc217f829c4c298c4.zip u-boot-imx-642ef40bdc95bef829ae3aadc217f829c4c298c4.tar.gz u-boot-imx-642ef40bdc95bef829ae3aadc217f829c4c298c4.tar.bz2 | |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/start.S | 58 |
1 files changed, 13 insertions, 45 deletions
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index 7df97c5..dcc1f83 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -155,12 +155,7 @@ reset: bl cpu_init_crit #endif -/* 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 /*------------------------------------------------------------------------------*/ @@ -177,14 +172,10 @@ ENTRY(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 moveq r9, #0 /* no relocation. relocation offset(r9) = 0 */ - beq clear_bss /* skip relocation */ + beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ @@ -233,34 +224,22 @@ fixnext: add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ cmp r2, r3 blo fixloop - b clear_bss + +relocate_done: + + bx lr + _rel_dyn_start_ofs: .word __rel_dyn_start - _start _rel_dyn_end_ofs: .word __rel_dyn_end - _start _dynsym_start_ofs: .word __dynsym_start - _start +ENDPROC(relocate_code) -clear_bss: - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:cmp r0, r1 /* clear loop... */ - bhs clbss_e /* if reached end of bss, exit */ - str r2, [r0] - add r0, r0, #4 - b clbss_l -clbss_e: +#endif -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -jump_2_ram: +ENTRY(c_runtime_cpu_setup) /* * If I-cache is enabled invalidate it */ @@ -279,20 +258,9 @@ jump_2_ram: mcr p15, 0, r0, c12, c0, 0 @Set VBAR #endif /* !Tegra20 */ - 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 - -_board_init_r_ofs: - .word board_init_r - _start -ENDPROC(relocate_code) -#endif + bx lr + +ENDPROC(c_runtime_cpu_setup) /************************************************************************* * |