[PATCH] ppc64: remove serialPortAddr from the naca

The serialPortAddr field of the naca was only being used locally, remove
it.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc64/kernel/maple_setup.c

@@ -75,7 +75,8 @@ extern void maple_calibrate_decr(void);
 extern void maple_pci_init(void);
 extern void maple_pcibios_fixup(void);
 extern int maple_pci_get_legacy_ide_irq(struct pci_dev *dev, int channel);
-extern void generic_find_legacy_serial_ports(unsigned int *default_speed);
+extern void generic_find_legacy_serial_ports(u64 *physport,
+		unsigned int *default_speed);
 
 
 static void maple_restart(char *cmd)
@@ -129,6 +130,7 @@ void __init maple_setup_arch(void)
 static void __init maple_init_early(void)
 {
 	unsigned int default_speed;
+	u64 physport;
 
 	DBG(" -> maple_init_early\n");
 
@@ -138,14 +140,14 @@ static void __init maple_init_early(void)
 	hpte_init_native();
 
 	/* Find the serial port */
-       	generic_find_legacy_serial_ports(&default_speed);
+	generic_find_legacy_serial_ports(&physport, &default_speed);
 
-	DBG("naca->serialPortAddr: %lx\n", (long)naca->serialPortAddr);
+	DBG("phys port addr: %lx\n", (long)physport);
 
-	if (naca->serialPortAddr) {
+	if (physport) {
 		void *comport;
 		/* Map the uart for udbg. */
-		comport = (void *)__ioremap(naca->serialPortAddr, 16, _PAGE_NO_CACHE);
+		comport = (void *)__ioremap(physport, 16, _PAGE_NO_CACHE);
 		udbg_init_uart(comport, default_speed);
 
 		ppc_md.udbg_putc = udbg_putc;

arch/ppc64/kernel/pSeries_setup.c

@@ -82,7 +82,8 @@ extern void pSeries_get_rtc_time(struct rtc_time *rtc_time);
 extern int  pSeries_set_rtc_time(struct rtc_time *rtc_time);
 extern void find_udbg_vterm(void);
 extern void SystemReset_FWNMI(void), MachineCheck_FWNMI(void);	/* from head.S */
-extern void generic_find_legacy_serial_ports(unsigned int *default_speed);
+extern void generic_find_legacy_serial_ports(u64 *physport,
+		unsigned int *default_speed);
 
 int fwnmi_active;  /* TRUE if an FWNMI handler is present */
 
@@ -345,6 +346,7 @@ static void __init pSeries_init_early(void)
 	void *comport;
 	int iommu_off = 0;
 	unsigned int default_speed;
+	u64 physport;
 
 	DBG(" -> pSeries_init_early()\n");
 
@@ -358,13 +360,13 @@ static void __init pSeries_init_early(void)
 			     get_property(of_chosen, "linux,iommu-off", NULL));
 	}
 
-	generic_find_legacy_serial_ports(&default_speed);
+	generic_find_legacy_serial_ports(&physport, &default_speed);
 
 	if (systemcfg->platform & PLATFORM_LPAR)
 		find_udbg_vterm();
-	else if (naca->serialPortAddr) {
+	else if (physport) {
 		/* Map the uart for udbg. */
-		comport = (void *)__ioremap(naca->serialPortAddr, 16, _PAGE_NO_CACHE);
+		comport = (void *)__ioremap(physport, 16, _PAGE_NO_CACHE);
 		udbg_init_uart(comport, default_speed);
 
 		ppc_md.udbg_putc = udbg_putc;

arch/ppc64/kernel/setup.c

@@ -1154,7 +1154,8 @@ __setup("decr_overclock=", set_decr_overclock );
 static struct plat_serial8250_port serial_ports[MAX_LEGACY_SERIAL_PORTS+1];
 static unsigned int old_serial_count;
 
-void __init generic_find_legacy_serial_ports(unsigned int *default_speed)
+void __init generic_find_legacy_serial_ports(u64 *physport,
+		unsigned int *default_speed)
 {
 	struct device_node *np;
 	u32 *sizeprop;
@@ -1172,7 +1173,7 @@ void __init generic_find_legacy_serial_ports(unsigned int *default_speed)
 
 	DBG(" -> generic_find_legacy_serial_port()\n");
 
-	naca->serialPortAddr = 0;
+	*physport = 0;
 	if (default_speed)
 		*default_speed = 0;
 
@@ -1294,7 +1295,7 @@ void __init generic_find_legacy_serial_ports(unsigned int *default_speed)
 				io_base = (io_base << 32) | rangesp[4];
 		}
 		if (io_base != 0) {
-			naca->serialPortAddr = io_base + reg->address;
+			*physport = io_base + reg->address;
 			if (default_speed && spd)
 				*default_speed = *spd;
 		}

include/asm-ppc64/naca.h

@@ -22,7 +22,6 @@ struct naca_struct {
 	u64 debug_switch;		/* Debug print control       0x20 */
 	u64 banner;                     /* Ptr to banner string      0x28 */
 	u64 log;                        /* Ptr to log buffer         0x30 */
-	u64 serialPortAddr;		/* Phy addr of serial port   0x38 */
 };
 
 extern struct naca_struct *naca;