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openrisc: head: use THREAD_SIZE instead of magic constant 

The stack size was hard coded to 0x2000, use the standard THREAD_SIZE
definition loaded from thread_info.h.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
[shorne@gmail.com: Added body to the commit message]
Signed-off-by: Stafford Horne <shorne@gmail.com>
This commit is contained in:
Stefan Kristiansson 2014-01-08 13:15:05 +02:00 committed by Stafford Horne
parent 742fb582b4
commit c2dc72437a
1 changed files with 3 additions and 1 deletions
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4
arch/openrisc/kernel/head.S
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@ -24,6 +24,7 @@
#include <asm/page.h>
#include <asm/mmu.h>
#include <asm/pgtable.h>
#include <asm/thread_info.h>
#include <asm/cache.h>
#include <asm/spr_defs.h>
#include <asm/asm-offsets.h>
@ -486,7 +487,8 @@ _start:
/*
* set up initial ksp and current
*/
LOAD_SYMBOL_2_GPR(r1,init_thread_union+0x2000) // setup kernel stack
/* setup kernel stack */
LOAD_SYMBOL_2_GPR(r1,init_thread_union + THREAD_SIZE)
LOAD_SYMBOL_2_GPR(r10,init_thread_union) // setup current
tophys (r31,r10)
l.sw TI_KSP(r31), r1