Move lib_$ARCH directories to arch/$ARCH/lib

Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk

This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

Makefile

@@ -195,7 +195,7 @@ endif
 ifeq ($(CPU),ixp)
 LIBS += cpu/ixp/npe/libnpe.a
 endif
-LIBS += lib_$(ARCH)/lib$(ARCH).a
+LIBS += arch/$(ARCH)/lib/lib$(ARCH).a
 LIBS += fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a \
 	fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a fs/yaffs2/libyaffs2.a \
 	fs/ubifs/libubifs.a
@@ -257,7 +257,7 @@ LIBBOARD := $(addprefix $(obj),$(LIBBOARD))
 # Add GCC lib
 ifdef USE_PRIVATE_LIBGCC
 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
-PLATFORM_LIBGCC = -L $(OBJTREE)/lib_$(ARCH) -lgcc
+PLATFORM_LIBGCC = -L $(OBJTREE)/arch/$(ARCH)/lib -lgcc
 else
 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 endif
@@ -3743,7 +3743,7 @@ clean:
 	       $(obj)board/netstar/{eeprom,crcek,crcit,*.srec,*.bin}	  \
 	       $(obj)board/trab/trab_fkt   $(obj)board/voiceblue/eeprom   \
 	       $(obj)board/armltd/{integratorap,integratorcp}/u-boot.lds  \
-	       $(obj)lib_blackfin/u-boot.lds				  \
+	       $(obj)arch/blackfin/lib/u-boot.lds				  \
 	       $(obj)u-boot.lds						  \
 	       $(obj)cpu/blackfin/bootrom-asm-offsets.[chs]
 	@rm -f $(obj)include/bmp_logo.h

README

@@ -182,19 +182,19 @@ Directory Hierarchy:
 - examples	Example code for standalone applications, etc.
 - fs		Filesystem code (cramfs, ext2, jffs2, etc.)
 - include	Header Files
-- lib_arm	Files generic to ARM	 architecture
-- lib_avr32	Files generic to AVR32	 architecture
-- lib_blackfin	Files generic to Blackfin architecture
+- arch/arm/lib	Files generic to ARM	 architecture
+- arch/avr32/lib	Files generic to AVR32	 architecture
+- arch/blackfin/lib	Files generic to Blackfin architecture
 - lib_generic	Files generic to all	 architectures
-- lib_i386	Files generic to i386	 architecture
-- lib_m68k	Files generic to m68k	 architecture
-- lib_microblaze Files generic to microblaze architecture
-- lib_mips	Files generic to MIPS	 architecture
-- lib_nios	Files generic to NIOS	 architecture
-- lib_nios2	Files generic to NIOS2	 architecture
-- lib_ppc	Files generic to PowerPC architecture
-- lib_sh	Files generic to SH	 architecture
-- lib_sparc	Files generic to SPARC	 architecture
+- arch/i386/lib	Files generic to i386	 architecture
+- arch/m68k/lib	Files generic to m68k	 architecture
+- arch/microblaze/lib Files generic to microblaze architecture
+- arch/mips/lib	Files generic to MIPS	 architecture
+- arch/nios/lib	Files generic to NIOS	 architecture
+- arch/nios/lib2	Files generic to NIOS2	 architecture
+- arch/ppc/lib	Files generic to PowerPC architecture
+- arch/sh/lib	Files generic to SH	 architecture
+- arch/sparc/lib	Files generic to SPARC	 architecture
 - libfdt	Library files to support flattened device trees
 - net		Networking code
 - post		Power On Self Test
@@ -1940,9 +1940,9 @@ Legacy uImage format:
    13	common/image.c		Start multifile image verification
    14	common/image.c		No initial ramdisk, no multifile, continue.
 
-   15	lib_<arch>/bootm.c	All preparation done, transferring control to OS
+   15	arch/<arch>/lib/bootm.c	All preparation done, transferring control to OS
 
-  -30	lib_ppc/board.c		Fatal error, hang the system
+  -30	arch/ppc/lib/board.c		Fatal error, hang the system
   -31	post/post.c		POST test failed, detected by post_output_backlog()
   -32	post/post.c		POST test failed, detected by post_run_single()
 

lib_arm/config.mk → arch/arm/config.mk

@@ -59,8 +59,8 @@ PLATFORM_CPPFLAGS += $(call cc-option,\
 # For EABI, make sure to provide raise()
 ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
 # This file is parsed several times; make sure to add only once.
-ifeq (,$(findstring lib_arm/eabi_compat.o,$(PLATFORM_LIBS)))
-PLATFORM_LIBS += $(OBJTREE)/lib_arm/eabi_compat.o
+ifeq (,$(findstring arch/arm/lib/eabi_compat.o,$(PLATFORM_LIBS)))
+PLATFORM_LIBS += $(OBJTREE)/arch/arm/lib/eabi_compat.o
 endif
 endif
 LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds

lib_blackfin/config.mk → arch/blackfin/config.mk

@@ -68,5 +68,5 @@ endif
 LDR_FLAGS += $(LDR_FLAGS-y)
 
 ifeq ($(wildcard $(TOPDIR)/board/$(BOARD)/u-boot.lds*),)
-LDSCRIPT = $(obj)lib_$(ARCH)/u-boot.lds.S
+LDSCRIPT = $(obj)arch/$(ARCH)/lib/u-boot.lds.S
 endif