[U-Boot] [PATCH v2 0/2] Factorize ARM startup code as mush as possible.

Albert ARIBAUD
2012-11-04T11:32:03Z

The goal of this series is to scrub the start.S files
which have proliferated across arch/arm and eliminate
code redundancy.

Currently this series only factorizes the C runtime
framework, that is, the assembly code responsible for
setting up the C environments needed by board_init_*()
and relocate_code().

Further factorization is possible: relocate_code() can
be moved out and possibly rewritten in C now that it
has plain C function semantics; exception handlers
should also be pretty much cpu-independent.

Eventually, start.S files should disappear or contain
CPU-specific code only.

The new C runtime setup sequence has been validated step by
step on target versatileqemu using toolchain ELDK4.2.

The whole changes have been build-tested across all ARM
targets using MAKEALL -a arm.

Changes in v2:
- moved description from cover letter to patch commit msg
- added note about tests in the cover letter
- fixed baords with CONFIG_SPL but not CONFIG_SPL_STACK
- introduced in V2

Albert ARIBAUD (2):
arm: move C runtime setup code in crt0.S
arm: remove useless code in start.S files

arch/arm/cpu/arm1136/start.S | 62 ++--------
arch/arm/cpu/arm1176/start.S | 62 ++--------
arch/arm/cpu/arm720t/start.S | 53 ++-------
arch/arm/cpu/arm920t/start.S | 61 ++--------
arch/arm/cpu/arm925t/start.S | 65 ++---------
arch/arm/cpu/arm926ejs/start.S | 86 ++------------
arch/arm/cpu/arm946es/start.S | 56 ++-------
arch/arm/cpu/arm_intcm/start.S | 63 ++--------
arch/arm/cpu/armv7/start.S | 58 +++-------
arch/arm/cpu/ixp/start.S | 55 ++-------
arch/arm/cpu/pxa/start.S | 63 ++--------
arch/arm/cpu/s3c44b0/start.S | 55 ++-------
arch/arm/cpu/sa1100/start.S | 50 ++------
arch/arm/lib/Makefile | 2 +
arch/arm/lib/board.c | 11 --
arch/arm/lib/crt0.S | 180 +++++++++++++++++++++++++++++
include/common.h | 2 +-
include/configs/socfpga_cyclone5.h | 2 +-
lib/asm-offsets.c | 10 ++
nand_spl/board/freescale/mx31pdk/Makefile | 6 +-
nand_spl/board/karo/tx25/Makefile | 6 +-
21 files changed, 324 insertions(+), 684 deletions(-)
create mode 100644 arch/arm/lib/crt0.S

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1.7.9.5