[POWERPC] Add starting of secondary 86xx CPUs.
Clear the high BATS during load_up_mmu if FTR_HAS_HIGH_BATS.
Allow just a bit more time for secondary CPUs to phone home.
Signed-off-by: Wei Zhang <Wei.Zhang@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index a0579e8..b25b259 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -973,6 +973,13 @@
b __secondary_start
#endif /* CONFIG_GEMINI */
+ .globl __secondary_start_mpc86xx
+__secondary_start_mpc86xx:
+ mfspr r3, SPRN_PIR
+ stw r3, __secondary_hold_acknowledge@l(0)
+ mr r24, r3 /* cpu # */
+ b __secondary_start
+
.globl __secondary_start_pmac_0
__secondary_start_pmac_0:
/* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */
@@ -1088,7 +1095,12 @@
LOAD_BAT(1,r3,r4,r5)
LOAD_BAT(2,r3,r4,r5)
LOAD_BAT(3,r3,r4,r5)
-
+BEGIN_FTR_SECTION
+ LOAD_BAT(4,r3,r4,r5)
+ LOAD_BAT(5,r3,r4,r5)
+ LOAD_BAT(6,r3,r4,r5)
+ LOAD_BAT(7,r3,r4,r5)
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS)
blr
/*
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 530f7db..c5d179d 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -492,7 +492,7 @@
* -- Cort
*/
if (system_state < SYSTEM_RUNNING)
- for (c = 5000; c && !cpu_callin_map[cpu]; c--)
+ for (c = 50000; c && !cpu_callin_map[cpu]; c--)
udelay(100);
#ifdef CONFIG_HOTPLUG_CPU
else
diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c
index ab5cd72..2ed43a4 100644
--- a/arch/powerpc/mm/ppc_mmu_32.c
+++ b/arch/powerpc/mm/ppc_mmu_32.c
@@ -43,13 +43,13 @@
union ubat { /* BAT register values to be loaded */
BAT bat;
u32 word[2];
-} BATS[4][2]; /* 4 pairs of IBAT, DBAT */
+} BATS[8][2]; /* 8 pairs of IBAT, DBAT */
struct batrange { /* stores address ranges mapped by BATs */
unsigned long start;
unsigned long limit;
unsigned long phys;
-} bat_addrs[4];
+} bat_addrs[8];
/*
* Return PA for this VA if it is mapped by a BAT, or 0