Hello Martin,
sorry, I should have look at your bsp-start-init-registers.s earlier.
This stuff looks so generic, that it should go directly into start.S. I
guess the TMS570 will not remain the only ARM core with a lockstep feature.
You don't have to save and restore the r0 in a function since its a
volatile register.
On 26/02/15 15:38, Martin Galvan wrote:
Changes from v1:
* Add bsp_start_* prefixes.
* Add *_banked_fiq suffixes to make it clear it's referring to the FIQ
mode banked regs.
Follow-up from here:
https://lists.rtems.org/pipermail/devel/2015-February/009974.html
This patch adds the macro BSP_START_NEEDS_REGISTER_INITIALIZATION and three
hooks for BSP-specific register init code to arm/shared/start.S. Said hooks are
bsp_start_init_registers_core (intended for initializing the ARM core
registers), bsp_start_init_registers_banked_fiq (for the FIQ mode banked
registers) and bsp_start_init_registers_vfp (for the FPU registers).
BSP_START_NEEDS_REGISTER_INITIALIZATION would be defined in a BSP's
configure.ac (so that it appears in its bspopts.h).
This patch also adds the register init code required by the TMS570. We've
tested it with the tms570ls3137_hdk.cfg config and it works fine.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
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