diff options
Diffstat (limited to 'arch/powerpc/platforms/powermac/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/powermac/setup.c | 121 |
1 files changed, 27 insertions, 94 deletions
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 45936c9ed0e..141f8899a63 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -31,7 +31,7 @@ #include <linux/stddef.h> #include <linux/unistd.h> #include <linux/ptrace.h> -#include <linux/slab.h> +#include <linux/export.h> #include <linux/user.h> #include <linux/tty.h> #include <linux/string.h> @@ -52,12 +52,11 @@ #include <linux/suspend.h> #include <linux/of_device.h> #include <linux/of_platform.h> -#include <linux/lmb.h> +#include <linux/memblock.h> #include <asm/reg.h> #include <asm/sections.h> #include <asm/prom.h> -#include <asm/system.h> #include <asm/pgtable.h> #include <asm/io.h> #include <asm/pci-bridge.h> @@ -103,11 +102,6 @@ unsigned long smu_cmdbuf_abs; EXPORT_SYMBOL(smu_cmdbuf_abs); #endif -#ifdef CONFIG_SMP -extern struct smp_ops_t psurge_smp_ops; -extern struct smp_ops_t core99_smp_ops; -#endif /* CONFIG_SMP */ - static void pmac_show_cpuinfo(struct seq_file *m) { struct device_node *np; @@ -341,34 +335,6 @@ static void __init pmac_setup_arch(void) ROOT_DEV = DEFAULT_ROOT_DEVICE; #endif -#ifdef CONFIG_SMP - /* Check for Core99 */ - ic = of_find_node_by_name(NULL, "uni-n"); - if (!ic) - ic = of_find_node_by_name(NULL, "u3"); - if (!ic) - ic = of_find_node_by_name(NULL, "u4"); - if (ic) { - of_node_put(ic); - smp_ops = &core99_smp_ops; - } -#ifdef CONFIG_PPC32 - else { - /* - * We have to set bits in cpu_possible_map here since the - * secondary CPU(s) aren't in the device tree, and - * setup_per_cpu_areas only allocates per-cpu data for - * CPUs in the cpu_possible_map. - */ - int cpu; - - for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu) - cpu_set(cpu, cpu_possible_map); - smp_ops = &psurge_smp_ops; - } -#endif -#endif /* CONFIG_SMP */ - #ifdef CONFIG_ADB if (strstr(cmd_line, "adb_sync")) { extern int __adb_probe_sync; @@ -389,9 +355,6 @@ static int initializing = 1; static int pmac_late_init(void) { initializing = 0; - /* this is udbg (which is __init) and we can later use it during - * cpu hotplug (in smp_core99_kick_cpu) */ - ppc_md.progress = NULL; return 0; } machine_late_initcall(powermac, pmac_late_init); @@ -512,6 +475,14 @@ static void __init pmac_init_early(void) #ifdef CONFIG_PPC64 iommu_init_early_dart(); #endif + + /* SMP Init has to be done early as we need to patch up + * cpu_possible_mask before interrupt stacks are allocated + * or kaboom... + */ +#ifdef CONFIG_SMP + pmac_setup_smp(); +#endif } static int __init pmac_declare_of_platform_devices(void) @@ -522,16 +493,29 @@ static int __init pmac_declare_of_platform_devices(void) return -1; np = of_find_node_by_name(NULL, "valkyrie"); - if (np) + if (np) { of_platform_device_create(np, "valkyrie", NULL); + of_node_put(np); + } np = of_find_node_by_name(NULL, "platinum"); - if (np) + if (np) { of_platform_device_create(np, "platinum", NULL); + of_node_put(np); + } np = of_find_node_by_type(NULL, "smu"); if (np) { of_platform_device_create(np, "smu", NULL); of_node_put(np); } + np = of_find_node_by_type(NULL, "fcu"); + if (np == NULL) { + /* Some machines have strangely broken device-tree */ + np = of_find_node_by_path("/u3@0,f8000000/i2c@f8001000/fan@15e"); + } + if (np) { + of_platform_device_create(np, "temperature", NULL); + of_node_put(np); + } return 0; } @@ -645,7 +629,7 @@ static int __init pmac_probe(void) * driver needs that. We have to allocate it now. We allocate 4k * (1 small page) for now. */ - smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL); + smu_cmdbuf_abs = memblock_alloc_base(4096, 4096, 0x80000000UL); #endif /* CONFIG_PMAC_SMU */ return 1; @@ -655,7 +639,7 @@ static int __init pmac_probe(void) /* Move that to pci.c */ static int pmac_pci_probe_mode(struct pci_bus *bus) { - struct device_node *node = bus->sysdata; + struct device_node *node = pci_bus_to_OF_node(bus); /* We need to use normal PCI probing for the AGP bus, * since the device for the AGP bridge isn't in the tree. @@ -667,51 +651,6 @@ static int pmac_pci_probe_mode(struct pci_bus *bus) return PCI_PROBE_NORMAL; return PCI_PROBE_DEVTREE; } - -#ifdef CONFIG_HOTPLUG_CPU -/* access per cpu vars from generic smp.c */ -DECLARE_PER_CPU(int, cpu_state); - -static void pmac_cpu_die(void) -{ - /* - * turn off as much as possible, we'll be - * kicked out as this will only be invoked - * on core99 platforms for now ... - */ - - printk(KERN_INFO "CPU#%d offline\n", smp_processor_id()); - __get_cpu_var(cpu_state) = CPU_DEAD; - smp_wmb(); - - /* - * during the path that leads here preemption is disabled, - * reenable it now so that when coming up preempt count is - * zero correctly - */ - preempt_enable(); - - /* - * hard-disable interrupts for the non-NAP case, the NAP code - * needs to re-enable interrupts (but soft-disables them) - */ - hard_irq_disable(); - - while (1) { - /* let's not take timer interrupts too often ... */ - set_dec(0x7fffffff); - - /* should always be true at this point */ - if (cpu_has_feature(CPU_FTR_CAN_NAP)) - power4_cpu_offline_powersave(); - else { - HMT_low(); - HMT_very_low(); - } - } -} -#endif /* CONFIG_HOTPLUG_CPU */ - #endif /* CONFIG_PPC64 */ define_machine(powermac) { @@ -743,10 +682,4 @@ define_machine(powermac) { .pcibios_after_init = pmac_pcibios_after_init, .phys_mem_access_prot = pci_phys_mem_access_prot, #endif -#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64) - .cpu_die = pmac_cpu_die, -#endif -#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32) - .cpu_die = generic_mach_cpu_die, -#endif }; |