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
......@@ -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
......
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