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Commit d6ea5573 authored by Sam Ravnborg's avatar Sam Ravnborg Committed by David S. Miller
Browse files

sparc32: simpler cputype check in head_32.S 



We know this is not a sun4/sun4c - as we checked earlier.
So no need to repeat the check.

Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent eb06f476

arch/sparc/kernel/head_32.S

+9 −25
Original line number Diff line number Diff line
@@ -699,35 +699,26 @@ execute_in_high_mem: 
		ba continue_boot

		 nop

#endif



/* Check to cputype. We may be booted on a sun4u (64 bit box),

 * and sun4d needs special treatment.

 */



		set	cputypval, %o2

		ldub	[%o2 + 0x4], %l1



		cmp	%l1, ' '

		be	no_sun4c_here

		 cmp	%l1, 'c'

		be	no_sun4c_here

		cmp	%l1, 'm'

		be	1f

		be	sun4m_init

		 cmp	%l1, 's'

		be	1f

		be	sun4m_init

		 cmp	%l1, 'd'

		be	1f

		be	sun4d_init

		 cmp	%l1, 'e'

		be	no_sun4e_here		! Could be a sun4e.

		 nop

		b	no_sun4u_here		! AIEEE, a V9 sun4u... Get our BIG BROTHER kernel :))

		 nop



1:		set	cputypval, %l1

		ldub	[%l1 + 0x4], %l1

		cmp	%l1, 'd'		! Let us see how the beast will die

		be	sun4d_init

		 nop



		/* If not sun4d assume sun4m */

		b	sun4m_init

		 nop



/* CPUID in bootbus can be found at PA 0xff0140000 */

#define SUN4D_BOOTBUS_CPUID     0xf0140000
@@ -1026,13 +1017,6 @@ continue_boot: 
		/* We should not get here. */

		call	halt_me

		 nop

no_sun4c_here:

		ld	[%g7 + 0x68], %o1

		set	sun4c_notsup, %o0

		call	%o1

		 nop

		b	halt_me

		 nop



no_sun4e_here:

		ld	[%g7 + 0x68], %o1