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openrisc: avoid using function parameter regs in reset vector

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The kernel might be invoked through the reset vector, so to
preserve parameters passed to it, temp regs that are not
in the function parameter range needs to be used.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
This commit is contained in:
Stefan Kristiansson 2012-10-12 09:38:18 +03:00 committed by Jonas Bonn
parent 1dd2ad7f2b
commit 54bd7c510b
1 changed files with 3 additions and 3 deletions
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6
arch/openrisc/kernel/head.S
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@ -291,9 +291,9 @@
/* Jump to .init code at _start which lives in the .head section
* and will be discarded after boot.
*/
LOAD_SYMBOL_2_GPR(r4, _start)
tophys (r3,r4) /* MMU disabled */
l.jr r3
LOAD_SYMBOL_2_GPR(r15, _start)
tophys (r13,r15) /* MMU disabled */
l.jr r13
l.nop
/* ---[ 0x200: BUS exception ]------------------------------------------- */