diff options
Diffstat (limited to 'arch/mn10300/kernel/setup.c')
| -rw-r--r-- | arch/mn10300/kernel/setup.c | 75 |
1 files changed, 41 insertions, 34 deletions
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c index d464affcba0..12514570ed5 100644 --- a/arch/mn10300/kernel/setup.c +++ b/arch/mn10300/kernel/setup.c @@ -22,6 +22,7 @@ #include <linux/init.h> #include <linux/bootmem.h> #include <linux/seq_file.h> +#include <linux/cpu.h> #include <asm/processor.h> #include <linux/console.h> #include <asm/uaccess.h> @@ -30,7 +31,6 @@ #include <asm/io.h> #include <asm/smp.h> #include <proc/proc.h> -#include <asm/busctl-regs.h> #include <asm/fpu.h> #include <asm/sections.h> @@ -64,11 +64,13 @@ unsigned long memory_size; struct thread_info *__current_ti = &init_thread_union.thread_info; struct task_struct *__current = &init_task; -#define mn10300_known_cpus 3 +#define mn10300_known_cpus 5 static const char *const mn10300_cputypes[] = { - "am33v1", - "am33v2", - "am34v1", + "am33-1", + "am33-2", + "am34-1", + "am33-3", + "am34-2", "unknown" }; @@ -123,6 +125,7 @@ void __init setup_arch(char **cmdline_p) cpu_init(); unit_setup(); + smp_init_cpus(); parse_mem_cmdline(cmdline_p); init_mm.start_code = (unsigned long)&_text; @@ -179,7 +182,6 @@ void __init setup_arch(char **cmdline_p) void __init cpu_init(void) { unsigned long cpurev = CPUREV, type; - unsigned long base, size; type = (CPUREV & CPUREV_TYPE) >> CPUREV_TYPE_S; if (type > mn10300_known_cpus) @@ -189,47 +191,46 @@ void __init cpu_init(void) mn10300_cputypes[type], (cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S); - /* determine the memory size and base from the memory controller regs */ - memory_size = 0; - - base = SDBASE(0); - if (base & SDBASE_CE) { - size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT; - size = ~size + 1; - base &= SDBASE_CBA; + get_mem_info(&phys_memory_base, &memory_size); + phys_memory_end = phys_memory_base + memory_size; - printk(KERN_INFO "SDRAM[0]: %luMb @%08lx\n", size >> 20, base); - memory_size += size; - phys_memory_base = base; - } + fpu_init_state(); +} - base = SDBASE(1); - if (base & SDBASE_CE) { - size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT; - size = ~size + 1; - base &= SDBASE_CBA; +static struct cpu cpu_devices[NR_CPUS]; - printk(KERN_INFO "SDRAM[1]: %luMb @%08lx\n", size >> 20, base); - memory_size += size; - if (phys_memory_base == 0) - phys_memory_base = base; - } +static int __init topology_init(void) +{ + int i; - phys_memory_end = phys_memory_base + memory_size; + for_each_present_cpu(i) + register_cpu(&cpu_devices[i], i); -#ifdef CONFIG_FPU - fpu_init_state(); -#endif + return 0; } +subsys_initcall(topology_init); + /* * Get CPU information for use by the procfs. */ static int show_cpuinfo(struct seq_file *m, void *v) { +#ifdef CONFIG_SMP + struct mn10300_cpuinfo *c = v; + unsigned long cpu_id = c - cpu_data; + unsigned long cpurev = c->type, type, icachesz, dcachesz; +#else /* CONFIG_SMP */ + unsigned long cpu_id = 0; unsigned long cpurev = CPUREV, type, icachesz, dcachesz; +#endif /* CONFIG_SMP */ - type = (CPUREV & CPUREV_TYPE) >> CPUREV_TYPE_S; +#ifdef CONFIG_SMP + if (!cpu_online(cpu_id)) + return 0; +#endif + + type = (cpurev & CPUREV_TYPE) >> CPUREV_TYPE_S; if (type > mn10300_known_cpus) type = mn10300_known_cpus; @@ -244,13 +245,14 @@ static int show_cpuinfo(struct seq_file *m, void *v) 1024; seq_printf(m, - "processor : 0\n" + "processor : %ld\n" "vendor_id : Matsushita\n" "cpu core : %s\n" "cpu rev : %lu\n" "model name : " PROCESSOR_MODEL_NAME "\n" "icache size: %lu\n" "dcache size: %lu\n", + cpu_id, mn10300_cputypes[type], (cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S, icachesz, @@ -262,8 +264,13 @@ static int show_cpuinfo(struct seq_file *m, void *v) "bogomips : %lu.%02lu\n\n", MN10300_IOCLK / 1000000, (MN10300_IOCLK / 10000) % 100, +#ifdef CONFIG_SMP + c->loops_per_jiffy / (500000 / HZ), + (c->loops_per_jiffy / (5000 / HZ)) % 100 +#else /* CONFIG_SMP */ loops_per_jiffy / (500000 / HZ), (loops_per_jiffy / (5000 / HZ)) % 100 +#endif /* CONFIG_SMP */ ); return 0; |