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Commit 9b4c514a authored by David S. Miller's avatar David S. Miller
Browse files

sparc32: Add back early sun4/sun4c detection so we can warn properly. 



We need to do the check before we try to remap the kernel using
SRMMU operations.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ee906c9e

arch/sparc/kernel/head_32.S

+23 −0
Original line number Diff line number Diff line
@@ -532,6 +532,29 @@ copy_prom_done: 
		be	go_to_highmem		! this will be a nop then

		 nop



		/* Validate that we are in fact running on an

		 * SRMMU based cpu.

		 */

		set	0x4000, %g6

		cmp	%g7, %g6

		bne	not_a_sun4

		 nop



halt_sun4_or_sun4c:

		ld	[%g7 + 0x68], %o1

		set	sun4c_notsup, %o0

		sub	%o0, %l6, %o0

		call	%o1

		 nop

		ba	halt_me

		 nop



not_a_sun4:

		lda	[%g0] ASI_M_MMUREGS, %g1

		andcc	%g1, 1, %g0

		be	halt_sun4_or_sun4c

		 nop



srmmu_remap:

		/* First, check for a viking (TI) module. */

		set	0x40000000, %g2