Patch by Steven Scholz, 16 Aug 2004:

- Introducing the concept of SoCs "./cpu/$(CPU)/$(SOC)"
- creating subdirs for SoCs ./cpu/arm920t/imx and ./cpu/arm920t/s3c24x0
- moving SoC specific code out of cpu/arm920t/ into cpu/arm920t/$(SOC)/
- moving drivers/s3c24x0_i2c.c and drivers/serial_imx.c out of drivers/
  into cpu/arm920t/$(SOC)/

CHANGELOG

@@ -2,6 +2,13 @@
 Changes since U-Boot 1.1.1:
 ======================================================================
 
+* Patch by Steven Scholz, 16 Aug 2004:
+  - Introducing the concept of SoCs "./cpu/$(CPU)/$(SOC)"
+  - creating subdirs for SoCs ./cpu/arm920t/imx and ./cpu/arm920t/s3c24x0
+  - moving SoC specific code out of cpu/arm920t/ into cpu/arm920t/$(SOC)/
+  - moving drivers/s3c24x0_i2c.c and drivers/serial_imx.c out of drivers/
+    into cpu/arm920t/$(SOC)/
+
 * Patches by Sean Chang, 09 Aug 2004:
   - Added support for both 8 and 16 bit mode access to System ACE CF
     through MPU.

Makefile

@@ -45,7 +45,7 @@ export	TOPDIR
 ifeq (include/config.mk,$(wildcard include/config.mk))
 # load ARCH, BOARD, and CPU configuration
 include include/config.mk
-export	ARCH CPU BOARD VENDOR
+export	ARCH CPU BOARD VENDOR SOC
 # load other configuration
 include $(TOPDIR)/config.mk
 
@@ -101,6 +101,9 @@ endif
 LIBS  = lib_generic/libgeneric.a
 LIBS += board/$(BOARDDIR)/lib$(BOARD).a
 LIBS += cpu/$(CPU)/lib$(CPU).a
+ifdef SOC
+LIBS += cpu/$(CPU)/$(SOC)/lib$(SOC).a
+endif
 LIBS += lib_$(ARCH)/lib$(ARCH).a
 LIBS += fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a \
 	fs/reiserfs/libreiserfs.a
@@ -1175,10 +1178,10 @@ lpd7a404_config:	unconfig
 	@./mkconfig $(@:_config=) arm lh7a40x lpd7a40x
 
 mx1ads_config	:	unconfig
-	@./mkconfig $(@:_config=) arm arm920t mx1ads
+	@./mkconfig $(@:_config=) arm arm920t mx1ads NULL imx
 
 mx1fs2_config	:	unconfig
-	@./mkconfig $(@:_config=) arm arm920t mx1fs2
+	@./mkconfig $(@:_config=) arm arm920t mx1fs2 NULL imx
 
 omap1510inn_config :	unconfig
 	@./mkconfig $(@:_config=) arm arm925t omap1510inn
@@ -1219,13 +1222,13 @@ omap730p2_cs3boot_config :	unconfig
 	@./mkconfig -a $(call xtract_omap730p2,$@) arm arm926ejs omap730p2
 
 scb9328_config	:	unconfig
-	@./mkconfig $(@:_config=) arm arm920t scb9328
+	@./mkconfig $(@:_config=) arm arm920t scb9328 NULL imx
 
 smdk2400_config	:	unconfig
-	@./mkconfig $(@:_config=) arm arm920t smdk2400
+	@./mkconfig $(@:_config=) arm arm920t smdk2400 NULL s3c24x0
 
 smdk2410_config	:	unconfig
-	@./mkconfig $(@:_config=) arm arm920t smdk2410
+	@./mkconfig $(@:_config=) arm arm920t smdk2410 NULL s3c24x0
 
 SX1_config :		unconfig
 	@./mkconfig $(@:_config=) arm arm925t sx1
@@ -1253,10 +1256,10 @@ trab_old_config:	unconfig
 		  echo "... with 8 MB Flash, 16 MB RAM" ; \
 		  echo "TEXT_BASE = 0x0CF40000" >board/trab/config.tmp ; \
 		}
-	@./mkconfig -a $(call xtract_trab,$@) arm arm920t trab
+	@./mkconfig -a $(call xtract_trab,$@) arm arm920t trab NULL s3c24x0
 
 VCMA9_config	:	unconfig
-	@./mkconfig $(@:_config=) arm arm920t vcma9 mpl
+	@./mkconfig $(@:_config=) arm arm920t vcma9 mpl s3c24x0
 
 versatile_config :	unconfig
 	@./mkconfig $(@:_config=) arm arm926ejs versatile

README

@@ -125,6 +125,8 @@ Directory Hierarchy:
   - 74xx_7xx	Files specific to Motorola MPC74xx and 7xx CPUs
   - arm720t	Files specific to ARM 720 CPUs
   - arm920t	Files specific to ARM 920 CPUs
+    - imx	Files specific to Motorola MC9328 i.MX CPUs
+    - s3c24x0	Files specific to Samsung S3C24X0 CPUs
   - arm925t	Files specific to ARM 925 CPUs
   - arm926ejs	Files specific to ARM 926 CPUs
   - at91rm9200	Files specific to Atmel AT91RM9200 CPUs

config.mk

@@ -59,6 +59,9 @@ endif
 ifdef	CPU
 sinclude $(TOPDIR)/cpu/$(CPU)/config.mk	# include  CPU	specific rules
 endif
+ifdef	SOC
+sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk	# include  SoC	specific rules
+endif
 ifdef	VENDOR
 BOARDDIR = $(VENDOR)/$(BOARD)
 else

cpu/arm920t/Makefile

@@ -26,11 +26,7 @@ include $(TOPDIR)/config.mk
 LIB	= lib$(CPU).a
 
 START	= start.o
-OBJS	= cpu.o	\
+OBJS	= cpu.o interrupts.o
-	  imx_generic.o imx_interrupts.o imx_speed.o \
-	  interrupts.o \
-	  s3c24x0_interrupts.o s3c24x0_serial.o s3c24x0_speed.o \
-	  usb_ohci.o
 
 all:	.depend $(START) $(LIB)
 

cpu/arm920t/imx/Makefile

@@ -0,0 +1,42 @@
+#
+# (C) Copyright 2000, 2001, 2002
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(SOC).a
+
+OBJS	= generic.o interrupts.o serial.o speed.o
+
+all:	.depend $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) crv $@ $(OBJS)
+
+#########################################################################
+
+.depend:	Makefile $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################

cpu/arm920t/s3c24x0/Makefile

@@ -0,0 +1,43 @@
+#
+# (C) Copyright 2000, 2001, 2002
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(SOC).a
+
+OBJS	= i2c.o interrupts.o serial.o speed.o \
+	  usb_ohci.o
+
+all:	.depend $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) crv $@ $(OBJS)
+
+#########################################################################
+
+.depend:	Makefile $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################

doc/README.ARM-SoC

@@ -0,0 +1,31 @@
+[By Steven Scholz <steven.scholz@imc-berlin.de>, 16 Aug 2004]
+
+Since the cpu/ directory gets clobbered with peripheral driver code I
+started cleaning up cpu/arm920t.
+
+I introduced the concept of Soc (system on a chip) into the ./cpu
+directory. That means that code that is cpu (i.e. core) specific
+resides in
+
+	cpu/$(CPU)/
+
+and code that is specific to some SoC (i.e. vendor specific
+peripherals around the core) is moved into
+
+	cpu/$(CPU)/$(SOC)/
+
+Thus a library/archive "cpu/$(CPU)/$(SOC)/lib$(SOC).a" will be build
+and linked. Examples will be
+
+	cpu/arm920t/imx/
+	cpu/arm920t/s3c24x0
+
+One can select an SoC by passing the name of it to ./mkconfig just
+like
+
+	@./mkconfig $(@:_config=) arm arm920t vcma9 mpl s3c24x0
+
+If there's no VENDOR field (like "mpl" in the above line) one has to
+pass NULL instead:
+
+	@./mkconfig $(@:_config=) arm arm920t mx1ads NULL imx

drivers/Makefile

@@ -38,9 +38,9 @@ OBJS	= 3c589.o 5701rls.o ali512x.o \
 	  pcnet.o plb2800_eth.o \
 	  ps2ser.o ps2mult.o pc_keyb.o \
 	  rtl8019.o rtl8139.o rtl8169.o \
-	  s3c24x0_i2c.o s3c4510b_eth.o s3c4510b_uart.o \
+	  s3c4510b_eth.o s3c4510b_uart.o \
 	  sed13806.o sed156x.o \
-	  serial.o serial_imx.o serial_max3100.o \
+	  serial.o serial_max3100.o \
 	  serial_pl010.o serial_pl011.o serial_xuartlite.o \
 	  sl811_usb.o smc91111.o smiLynxEM.o status_led.o sym53c8xx.o \
 	  ti_pci1410a.o tigon3.o \

mkconfig

@@ -3,7 +3,7 @@
 # Script to create header files and links to configure
 # U-Boot for a specific board.
 #
-# Parameters:  Target  Architecture  CPU  Board
+# Parameters:  Target  Architecture  CPU  Board [VENDOR] [SOC]
 #
 # (C) 2002 DENX Software Engineering, Wolfgang Denk <wd@denx.de>
 #
@@ -19,7 +19,7 @@ while [ $# -gt 0 ] ; do
 done
 
 [ $# -lt 4 ] && exit 1
-[ $# -gt 5 ] && exit 1
+[ $# -gt 6 ] && exit 1
 
 echo "Configuring for $1 board..."
 
@@ -41,11 +41,13 @@ fi
 #
 # Create include file for Make
 #
-echo "ARCH  = $2" >  config.mk
+echo "ARCH   = $2" >  config.mk
-echo "CPU   = $3" >> config.mk
+echo "CPU    = $3" >> config.mk
-echo "BOARD = $4" >> config.mk
+echo "BOARD  = $4" >> config.mk
 
-[ "$5" ] && echo "VENDOR = $5" >> config.mk
+[ "$5" ] && [ "$5" != "NULL" ] && echo "VENDOR = $5" >> config.mk
+
+[ "$6" ] && [ "$6" != "NULL" ] && echo "SOC    = $6" >> config.mk
 
 #
 # Create board specific header file