[ARM] cputype: separate definitions, use them

Add asm/cputype.h, moving functions and definitions from asm/system.h
there.  Convert all users of 'processor_id' to the more efficient
read_cpuid_id() function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
index 8302ef005be7..147b4d5c63b3 100644
--- a/drivers/watchdog/ixp4xx_wdt.c
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -174,10 +174,8 @@ static struct miscdevice ixp4xx_wdt_miscdev = {
 static int __init ixp4xx_wdt_init(void)
 {
         int ret;
-        unsigned long processor_id;
 
-        asm("mrc p15, 0, %0, cr0, cr0, 0;" : "=r"(processor_id) :);
-        if (!(processor_id & 0xf) && !cpu_is_ixp46x()) {
+        if (!(read_cpuid_id() & 0xf) && !cpu_is_ixp46x()) {
                 printk(KERN_ERR "IXP4XXX Watchdog: Rev. A0 IXP42x CPU detected"
                         " - watchdog disabled\n");