ARM: footbridge: trim down old ISA rtc setup

This fixes a "start_kernel(): bug: interrupts were enabled early".

rtc_cmos now takes care of initializing the ISA RTC and reading the
current time and date from it; there's no need to repeat that here,
thereby causing interrupts to be enabled too early.

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

1 files changed, 14 insertions, 4 deletions

diff --git a/arch/arm/mach-footbridge/isa.c b/arch/arm/mach-footbridge/isa.c
index 725a219d0ed5..4d9276c27d6f 100644
--- a/arch/arm/mach-footbridge/isa.c
+++ b/arch/arm/mach-footbridge/isa.c
@@ -11,6 +11,9 @@
 #include <linux/serial_8250.h>
 
 #include <asm/irq.h>
+#include <asm/hardware/dec21285.h>
+
+#include "common.h"
 
 static struct resource rtc_resources[] = {
         [0] = {
@@ -77,11 +80,18 @@ static struct platform_device serial_device = {
 
 static int __init footbridge_isa_init(void)
 {
-        int err;
+        int err = 0;
 
-        err = platform_device_register(&rtc_device);
-        if (err)
-                printk(KERN_ERR "Unable to register RTC device: %d\n", err);
+        if (!footbridge_cfn_mode())
+                return 0;
+
+        /* Personal server doesn't have RTC */
+        if (!machine_is_personal_server()) {
+                isa_rtc_init();
+                err = platform_device_register(&rtc_device);
+                if (err)
+                        printk(KERN_ERR "Unable to register RTC device: %d\n", err);
+        }
         err = platform_device_register(&serial_device);
         if (err)
                 printk(KERN_ERR "Unable to register serial device: %d\n", err);