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| author | Tom Rini <trini@ti.com> | 2012-08-22 15:31:05 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-09-27 09:49:59 -0700 |
| commit | 6507f133f3201ed5fb22e4a3d73c33b47497539d (patch) | |
| tree | bd9cc293fbd27e5e0ce75b26fa58c8065d450f4a /arch/arm/cpu/armv7/start.S | |
| parent | 47f7bcae8c0de8b2a8af7ca309744f041a6d1424 (diff) | |
| download | talos-obmc-uboot-6507f133f3201ed5fb22e4a3d73c33b47497539d.tar.gz talos-obmc-uboot-6507f133f3201ed5fb22e4a3d73c33b47497539d.zip | |
SPL: Create arch/arm/lib/spl.c for board_init_f and jump_to_image_linux
In SPL (CONFIG_SPL_FRAMEWORK) board_init_f must setup the stack pointer,
clear the BSS and call board_init_r. We mark this as weak as some
platforms may need to perform additional initalization at this point.
We provide a gd that we know will be in a usable location, once the BSS
has been cleared to help with this as well. Finally, we no longer call
relocate_code so remove that from the armv7 version.
Next, both board_init_f and jump_to_image_linux are going to be
inherently arch-specific, so move these versions to arch/arm/lib/spl.c
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7/start.S')
| -rw-r--r-- | arch/arm/cpu/armv7/start.S | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index 32658eb7a5..f26308df16 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -164,6 +164,7 @@ call_board_init_f: /*------------------------------------------------------------------------------*/ +#ifndef CONFIG_SPL_BUILD /* * void relocate_code (addr_sp, gd, addr_moni) * @@ -194,7 +195,6 @@ copy_loop: cmp r0, r2 /* until source end address [r2] */ blo copy_loop -#ifndef CONFIG_SPL_BUILD /* * fix .rel.dyn relocations */ @@ -241,20 +241,12 @@ _rel_dyn_end_ofs: _dynsym_start_ofs: .word __dynsym_start - _start -#endif /* #ifndef CONFIG_SPL_BUILD */ - clear_bss: -#ifdef CONFIG_SPL_BUILD - /* No relocation for SPL */ - ldr r0, =__bss_start - ldr r1, =__bss_end__ -#else ldr r0, _bss_start_ofs ldr r1, _bss_end_ofs mov r4, r6 /* reloc addr */ add r0, r0, r4 add r1, r1, r4 -#endif mov r2, #0x00000000 /* clear */ clbss_l:cmp r0, r1 /* clear loop... */ @@ -281,12 +273,10 @@ jump_2_ram: * Move vector table */ #if !defined(CONFIG_TEGRA20) -#if !(defined(CONFIG_OMAP44XX) && defined(CONFIG_SPL_BUILD)) /* Set vector address in CP15 VBAR register */ ldr r0, =_start add r0, r0, r9 mcr p15, 0, r0, c12, c0, 0 @Set VBAR -#endif #endif /* !Tegra20 */ ldr r0, _board_init_r_ofs @@ -302,6 +292,7 @@ jump_2_ram: _board_init_r_ofs: .word board_init_r - _start ENDPROC(relocate_code) +#endif /************************************************************************* * |
