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Diffstat (limited to 'arch/mn10300/kernel/setup.c')
-rw-r--r--arch/mn10300/kernel/setup.c75
1 files changed, 41 insertions, 34 deletions
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c
index d464affcba0e..12514570ed5d 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;