[OpenBIOS] [PATCH 1/2] SPARC32: Remove SMP detection for SS-5

[Olivier Danet]

SparcStation 5 can only use one CPU.

Signed-off-by: Olivier Danet <odanet at caramail.com>
---
 arch/sparc32/entry.S | 36 ++++++++++++------------------------
 1 file changed, 12 insertions(+), 24 deletions(-)

diff --git a/arch/sparc32/entry.S b/arch/sparc32/entry.S
index 82aa88e..7dc9fc8 100644
--- a/arch/sparc32/entry.S
+++ b/arch/sparc32/entry.S
@@ -179,7 +179,7 @@ clear_done:
          nop
 
         ! Calculate SMP table location
-	set	0x1f0c, %g2
+        set     0x1f0c, %g2
         add     %g6, %g2, %g2                 ! valid?
         lda     [%g2] ASI_M_BYPASS, %g7
         sta     %g0, [%g2] ASI_M_BYPASS
@@ -205,36 +205,40 @@ skip_table:
         blu     ss2
          nop
 
-        ! Ok, this is SS-5
+        ! Ok, this is SS-5, uniprocessor
+        ba      first_cpu
+         nop
 
+ss10:
+        ! Ok, this is SS-10/20 or SS-600MP
         tst     %g7
         bz      first_cpu
          nop
 
         ! Clear softints used for SMP CPU startup
-        set     PHYS_JJ_INTR0 + 0x04, %g1
+        set     PHYS_SS10_INTR0 + 0x04, %g1
         sll     %g2, 12, %g2
         add     %g1, %g2, %g2
         set     0xffffffff, %g1
-        sta     %g1, [%g2] ASI_M_BYPASS         ! clear softints
+        sta     %g1, [%g2] ASI_M_CTL            ! clear softints
         add     %g2, 4, %g2
-        sta     %g0, [%g2] ASI_M_BYPASS         ! clear softints
+        sta     %g0, [%g2] ASI_M_CTL            ! clear softints
 
 load_ctx:
         ! SMP init, jump to user specified address
-	set	0x1f04, %g5
+        set     0x1f04, %g5
         add     %g6, %g5, %g5                 ! ctxtbl
         lda     [%g5] ASI_M_BYPASS, %g2
         sta     %g0, [%g5] ASI_M_BYPASS
         set     AC_M_CTPR, %g1
         sta     %g2, [%g1] ASI_M_MMUREGS        ! set ctx table ptr
-	set	0x1f00, %g5
+        set     0x1f00, %g5
         add     %g6, %g5, %g5                 ! ctx
         lda     [%g5] ASI_M_BYPASS, %g2
         sta     %g0, [%g5] ASI_M_BYPASS
         set     AC_M_CXR, %g1
         sta     %g2, [%g1] ASI_M_MMUREGS        ! set context
-	set	0x1f08, %g5
+        set     0x1f08, %g5
         add     %g6, %g5, %g5                 ! entry
         lda     [%g5] ASI_M_BYPASS, %g2
         sta     %g0, [%g5] ASI_M_BYPASS
@@ -242,22 +246,6 @@ load_ctx:
         jmp     %g2                             ! jump to kernel
          sta    %g1, [%g0] ASI_M_MMUREGS        ! enable mmu
 
-ss10:
-        ! Ok, this is SS-10 or SS-600MP
-        tst     %g7
-        bz      first_cpu
-         nop
-
-        ! Clear softints used for SMP CPU startup
-        set     PHYS_SS10_INTR0 + 0x04, %g1
-        sll     %g2, 12, %g2
-        add     %g1, %g2, %g2
-        set     0xffffffff, %g1
-        sta     %g1, [%g2] ASI_M_CTL            ! clear softints
-        add     %g2, 4, %g2
-        b       load_ctx
-         sta    %g0, [%g2] ASI_M_CTL            ! clear softints
-
 ss2:
         ! Ok, this is SS-2
         set     ss2_error, %o2
-- 
2.7.4