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nios2: set initial stack pointer to the interrupt stack

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Change-Id: I5a71215dde9e7fdc7d5d9de5297f5f493de40ca8
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2016-05-09 16:56:35 -07:00 • committed by Anas Nashif
commit 31e8030c05
1 changed files with 7 additions and 3 deletions
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10
arch/nios2/core/crt0.S
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@ -62,9 +62,13 @@ SECTION_FUNC(TEXT, __text_start)
* ZEP-275 * ZEP-275
*/ */
/* Set up the initial stack pointer /* Set up the initial stack pointer to the interrupt stack, safe
* ZEP-269 * to use this as the CPU boots up with interrupts disabled and we
*/ * don't turn them on until much later, when the kernel is on
* the main stack */
movhi sp, %hi(_interrupt_stack)
ori sp, sp, %lo(_interrupt_stack)
addi sp, sp, CONFIG_ISR_STACK_SIZE
/* TODO Setup the global pointer /* TODO Setup the global pointer
* ZEP-272 * ZEP-272