PPC32: Update the bootloader serial code to have stub functions.

arch/ppc/boot/common/Makefile

@@ -8,7 +8,8 @@
 # Tom Rini	January 2001
 #
 
-lib-y					:= string.o util.o misc-common.o
+lib-y					:= string.o util.o misc-common.o \
+						serial_stub.o
 lib-$(CONFIG_PPC_PREP)			+= mpc10x_memory.o
 lib-$(CONFIG_LOPEC)			+= mpc10x_memory.o
 lib-$(CONFIG_PAL4)			+= cpc700_memory.o

arch/ppc/boot/common/ns16550.c

@@ -95,8 +95,3 @@ serial_tstc(unsigned long com_port)
 {
 	return ((inb(com_port + (UART_LSR << shift)) & UART_LSR_DR) != 0);
 }
-
-void
-serial_close(unsigned long com_port)
-{
-}

arch/ppc/boot/common/serial_stub.c

+/*
+ * arch/ppc/boot/common/serial_stub.c
+ *
+ * This is a few stub routines to make the boot code cleaner looking when
+ * there is no serial port support doesn't need to be closed, for example.
+ *
+ * Author: Tom Rini <trini@mvista.com>
+ *
+ * 2003 (c) MontaVista, Software, Inc.  This file is licensed under the terms
+ * of the GNU General Public License version 2.  This program is licensed "as
+ * is" without any warranty of any kind, whether express or implied.
+ */
+
+void __attribute__ ((weak))
+serial_fixups(void)
+{
+}
+
+unsigned long __attribute__ ((weak))
+serial_init(int chan, void *ignored)
+{
+	return 0;
+}
+
+void __attribute__ ((weak))
+serial_close(unsigned long com_port)
+{
+}

arch/ppc/boot/simple/Makefile

@@ -96,10 +96,6 @@ EXTRA				:= chrpmap.o
 END				:= pcore
 TFTPIMAGE			:= /tftpboot/zImage.$(END)
 endif
-# The PowerPMC 250 needs the dummy serial_fixups()
-ifeq ($(CONFIG_POWERPMC250),y)
-EXTRA				:= direct.o
-endif
 ifeq ($(CONFIG_SANDPOINT),y)
 EXTRA				:= direct.o
 TFTPIMAGE			:= /tftpboot/zImage.sandpoint

arch/ppc/boot/simple/direct.S

-/*
- * arch/ppc/boot/simple/direct.S
- *
- * Author: Tom Rini <trini@mvista.com>
- *
- * This is an empty function for machines which use SERIAL_IO_MEM
- * and don't need ISA_io set to anything but 0, or perform any other
- * serial fixups.
- */
-
-	.text
-
-	.globl serial_fixups
-serial_fixups:
-	blr

arch/ppc/boot/simple/m8260_tty.c

@@ -311,8 +311,3 @@ serial_tstc(void *ignored)
 
 	return(!(rbdf->cbd_sc & BD_SC_EMPTY));
 }
-
-void
-serial_close(unsigned long com_port)
-{
-}

arch/ppc/boot/simple/m8xx_tty.c

@@ -288,8 +288,3 @@ serial_tstc(void *ignored)
 
 	return(!(rbdf->cbd_sc & BD_SC_EMPTY));
 }
-
-void
-serial_close(unsigned long com_port)
-{
-}