Commit 54bd7c51 authored Oct 12, 2012 by Stefan Kristiansson Committed by Jonas Bonn Feb 10, 2013

openrisc: avoid using function parameter regs in reset vector



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>

parent 1dd2ad7f

arch/openrisc/kernel/head.S

+3 −3

Original line number	Diff line number	Diff line
		@@ -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 ]------------------------------------------- */