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authorMichael Hennerich <michael.hennerich@analog.com>2008-02-02 15:10:51 +0800
committerBryan Wu <bryan.wu@analog.com>2008-02-02 15:10:51 +0800
commit6cda2e90588ba2f70543abf68b4815e10c86aef1 (patch)
treec4fbcc726fd4996848716538583ac0a30ba6f2e5
parenta680ae9bdd8746ea4338e843db388fa67f1d1920 (diff)
[Blackfin] arch: Fix BUG - Enable ISP1362 driver to work ok with BF561
This fixes a bug (zero pointer access) only seen on BF561, during USB Mass Storage/SCSI Host initialization. It appears to be related to registering a none existing CPU Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
-rw-r--r--arch/blackfin/kernel/setup.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 2f156bfc2b2..aca5e6e5bbd 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -48,6 +48,8 @@
#include <asm/fixed_code.h>
#include <asm/early_printk.h>
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
u16 _bfin_swrst;
unsigned long memory_start, memory_end, physical_mem_end;
@@ -763,15 +765,15 @@ void __init setup_arch(char **cmdline_p)
static int __init topology_init(void)
{
-#if defined (CONFIG_BF561)
- static struct cpu cpu[2];
- register_cpu(&cpu[0], 0);
- register_cpu(&cpu[1], 1);
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+
+ register_cpu(c, cpu);
+ }
+
return 0;
-#else
- static struct cpu cpu[1];
- return register_cpu(cpu, 0);
-#endif
}
subsys_initcall(topology_init);