From ee0339f205d60375c5ce1653c0dc318c6ec72668 Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Sat, 17 Jun 2006 17:52:44 -0500 Subject: [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 Signed-off-by: Haiying Wang Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/head_32.S | 14 +++++++++++++- arch/powerpc/kernel/smp.c | 2 +- 2 files changed, 14 insertions(+), 2 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index a0579e859b2..b25b25902d1 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -973,6 +973,13 @@ __secondary_start_gemini: 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_up_mmu: 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 530f7dba0bd..c5d179d4f81 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -492,7 +492,7 @@ int __devinit __cpu_up(unsigned int cpu) * -- 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 -- cgit v1.2.3