diff options
| author | Jon Loeliger <jdl@jdl.com> | 2006-06-18 02:52:44 +0400 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-06-21 09:01:28 +0400 |
| commit | ee0339f205d60375c5ce1653c0dc318c6ec72668 (patch) | |
| tree | 8c4e46f6645224d88b26fed0a8c5ff031f233952 /arch | |
| parent | 9674ed38d8e4a9ce15c61b4306ef803cad0e1dc0 (diff) | |
| download | linux-ee0339f205d60375c5ce1653c0dc318c6ec72668.tar.xz | |
[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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/head_32.S | 14 | ||||
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/mm/ppc_mmu_32.c | 4 |
3 files changed, 16 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index a0579e859b21..b25b25902d15 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 530f7dba0bd2..c5d179d4f818 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 diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c index ab5cd724b122..2ed43a493b31 100644 --- a/arch/powerpc/mm/ppc_mmu_32.c +++ b/arch/powerpc/mm/ppc_mmu_32.c @@ -43,13 +43,13 @@ unsigned long _SDR1; 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 |