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| author | Alexey Brodkin <abrodkin@synopsys.com> | 2015-02-24 19:40:36 +0300 |
|---|---|---|
| committer | Alexey Brodkin <abrodkin@synopsys.com> | 2015-04-03 09:47:49 +0300 |
| commit | 3fb8016360d5433f3c4da51f8dd57550e7ef9018 (patch) | |
| tree | 1cc2fe2a4723565e60279386122a35abe44cb36a /arch/arc/include | |
| parent | 8ee28251d95e237302c7c44929e59a813e147622 (diff) | |
| download | talos-obmc-uboot-3fb8016360d5433f3c4da51f8dd57550e7ef9018.tar.gz talos-obmc-uboot-3fb8016360d5433f3c4da51f8dd57550e7ef9018.zip | |
arc: clean-up init procedure
Intention behind this work was elimination of as much assembly-written
code as it is possible.
In case of ARC we already have relocation fix-up implemented in C so why
don't we use C for U-Boot copying, .bss zeroing etc.
It turned out x86 uses pretty similar approach so we re-used parts of
code in "board_f.c" initially implemented for x86.
Now assembly usage during init is limited to stack- and frame-pointer
setup before and after relocation.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/arc/include')
| -rw-r--r-- | arch/arc/include/asm/init_helpers.h | 12 | ||||
| -rw-r--r-- | arch/arc/include/asm/relocate.h | 16 | ||||
| -rw-r--r-- | arch/arc/include/asm/u-boot-arc.h | 3 |
3 files changed, 31 insertions, 0 deletions
diff --git a/arch/arc/include/asm/init_helpers.h b/arch/arc/include/asm/init_helpers.h new file mode 100644 index 0000000000..7607e19561 --- /dev/null +++ b/arch/arc/include/asm/init_helpers.h @@ -0,0 +1,12 @@ +/* + * Copyright (C) 2013-2015 Synopsys, Inc. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ASM_ARC_INIT_HELPERS_H +#define _ASM_ARC_INIT_HELPERS_H + +int init_cache_f_r(void); + +#endif /* _ASM_ARC_INIT_HELPERS_H */ diff --git a/arch/arc/include/asm/relocate.h b/arch/arc/include/asm/relocate.h new file mode 100644 index 0000000000..4c5f923416 --- /dev/null +++ b/arch/arc/include/asm/relocate.h @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2013-2015 Synopsys, Inc. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ASM_ARC_RELOCATE_H +#define _ASM_ARC_RELOCATE_H + +#include <common.h> + +int copy_uboot_to_ram(void); +int clear_bss(void); +int do_elf_reloc_fixups(void); + +#endif /* _ASM_ARC_RELOCATE_H */ diff --git a/arch/arc/include/asm/u-boot-arc.h b/arch/arc/include/asm/u-boot-arc.h index 0c0e8e661d..a56ccf1b5d 100644 --- a/arch/arc/include/asm/u-boot-arc.h +++ b/arch/arc/include/asm/u-boot-arc.h @@ -9,4 +9,7 @@ int arch_early_init_r(void); +void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn)); +void board_init_f_r(void) __attribute__ ((noreturn)); + #endif /* __ASM_ARC_U_BOOT_ARC_H__ */ |
