[POWERPC] ps3: get firmware version

Add a new routine ps3_get_firmware_version() and use it to output the firmware
version to dmesg.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/ps3/setup.c

@@ -32,6 +32,7 @@
 #include <asm/udbg.h>
 #include <asm/prom.h>
 #include <asm/lv1call.h>
+#include <asm/ps3.h>
 
 #include "platform.h"
 
@@ -41,6 +42,19 @@
 #define DBG(fmt...) do{if(0)printk(fmt);}while(0)
 #endif
 
+int ps3_get_firmware_version(union ps3_firmware_version *v)
+{
+	int result = lv1_get_version_info(&v->raw);
+
+	if (result) {
+		v->raw = 0;
+		return -1;
+	}
+
+	return result;
+}
+EXPORT_SYMBOL_GPL(ps3_get_firmware_version);
+
 static void ps3_power_save(void)
 {
 	/*
@@ -69,8 +83,14 @@ static void ps3_panic(char *str)
 
 static void __init ps3_setup_arch(void)
 {
+	union ps3_firmware_version v;
+
 	DBG(" -> %s:%d\n", __func__, __LINE__);
 
+	ps3_get_firmware_version(&v);
+	printk(KERN_INFO "PS3 firmware version %u.%u.%u\n", v.major, v.minor,
+		v.rev);
+
 	ps3_spu_set_platform();
 	ps3_map_htab();
 

include/asm-powerpc/ps3.h

@@ -27,6 +27,18 @@
 #include <linux/device.h>
 #include <scsi/scsi.h>
 
+union ps3_firmware_version {
+	u64 raw;
+	struct {
+		u16 pad;
+		u16 major;
+		u16 minor;
+		u16 rev;
+	};
+};
+
+int ps3_get_firmware_version(union ps3_firmware_version *v);
+
 /**
  * struct ps3_device_id - HV bus device identifier from the system repository
  * @bus_id: HV bus id, {1..} (zero invalid)