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| author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-01-08 10:18:02 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-01-08 22:14:50 +0100 |
| commit | e05e5de7fae5bec79617e113916dac6631251156 (patch) | |
| tree | c4d2bedca6e1ec79e30b229d2da6b979276456af /arch/arm/lib/board.c | |
| parent | 7528cf5f016b5b8b8b12b373f6f31a10bf89233d (diff) | |
| download | u-boot-imx-e05e5de7fae5bec79617e113916dac6631251156.zip u-boot-imx-e05e5de7fae5bec79617e113916dac6631251156.tar.gz u-boot-imx-e05e5de7fae5bec79617e113916dac6631251156.tar.bz2 | |
arm: move C runtime setup code in crt0.S
Move all the C runtime setup code from every start.S
in arch/arm into arch/arm/lib/crt0.S. This covers
the code sequence from setting up the initial stack
to calling into board_init_r().
Also, rewrite the C runtime setup and make functions
board_init_*() and relocate_code() behave according to
normal C semantics (no jumping across the C stack any
more, etc).
Some SPL targets had to be touched because they use
start.S explicitly or for some reason; the relevant
maintainers and custodians are cc:ed.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Diffstat (limited to 'arch/arm/lib/board.c')
| -rw-r--r-- | arch/arm/lib/board.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index e0cb635..0459d0c 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -279,11 +279,6 @@ void board_init_f(ulong bootflag) bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f"); - /* Pointer is writable since we allocated a register for it */ - gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07); - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - memset((void *)gd, 0, sizeof(gd_t)); gd->mon_len = _bss_end_ofs; @@ -465,10 +460,6 @@ void board_init_f(ulong bootflag) gd->fdt_blob = new_fdt; } memcpy(id, (void *)gd, sizeof(gd_t)); - - relocate_code(addr_sp, id, addr); - - /* NOTREACHED - relocate_code() does not return */ } #if !defined(CONFIG_SYS_NO_FLASH) @@ -493,8 +484,6 @@ void board_init_r(gd_t *id, ulong dest_addr) ulong flash_size; #endif - gd = id; - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r"); |