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: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 25 deletions

diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S
index 17e00c1ff5d..9b2d43db2c4 100644
--- a/arch/sparc/kernel/head_32.S
+++ b/arch/sparc/kernel/head_32.S
@@ -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
+                cmp     %l1, 'm'
+                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