Move arch/ppc to arch/powerpc

As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>
diff --git a/README b/README
index 99320ab..4a50557 100644
--- a/README
+++ b/README
@@ -183,7 +183,7 @@
   /nios2		Files generic to Altera NIOS2 architecture
     /cpu		CPU specific files
     /lib		Architecture specific library files
-  /ppc			Files generic to PowerPC architecture
+  /powerpc		Files generic to PowerPC architecture
     /cpu		CPU specific files
       /74xx_7xx		Files specific to Freescale MPC74xx and 7xx CPUs
       /mpc5xx		Files specific to Freescale MPC5xx CPUs
@@ -1417,7 +1417,7 @@
 		the CPU's i2c node address).
 
 		Now, the u-boot i2c code for the mpc8xx
-		(arch/ppc/cpu/mpc8xx/i2c.c) sets the CPU up as a master node
+		(arch/powerpc/cpu/mpc8xx/i2c.c) sets the CPU up as a master node
 		and so its address should therefore be cleared to 0 (See,
 		eg, MPC823e User's Manual p.16-473). So, set
 		CONFIG_SYS_I2C_SLAVE to 0.
@@ -1966,7 +1966,7 @@
 
    15	arch/<arch>/lib/bootm.c	All preparation done, transferring control to OS
 
-  -30	arch/ppc/lib/board.c	Fatal error, hang the system
+  -30	arch/powerpc/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()
 
@@ -2727,7 +2727,7 @@
   CONFIG_SYS_PCI_MSTR_MEMIO_SIZE, CONFIG_SYS_POCMR1_MASK_ATTRIB, CONFIG_SYS_PCI_MSTR_IO_LOCAL,
   CONFIG_SYS_PCI_MSTR_IO_BUS, CONFIG_SYS_CPU_PCI_IO_START, CONFIG_SYS_PCI_MSTR_IO_SIZE,
   CONFIG_SYS_POCMR2_MASK_ATTRIB: (MPC826x only)
-		Overrides the default PCI memory map in arch/ppc/cpu/mpc8260/pci.c if set.
+		Overrides the default PCI memory map in arch/powerpc/cpu/mpc8260/pci.c if set.
 
 - CONFIG_PCI_DISABLE_PCIE:
 		Disable PCI-Express on systems where it is supported but not
@@ -3373,7 +3373,7 @@
 (no, we don't intend to provide a full virtual machine interface to
 Linux :-).
 
-But now you can ignore ALL boot loader code (in arch/ppc/mbxboot).
+But now you can ignore ALL boot loader code (in arch/powerpc/mbxboot).
 
 Just make sure your machine specific header file (for instance
 include/asm-ppc/tqm8xx.h) includes the same definition of the Board
@@ -3471,7 +3471,7 @@
 
 	-> tools/mkimage -n '2.4.4 kernel for TQM850L' \
 	> -A ppc -O linux -T kernel -C gzip -a 0 -e 0 \
-	> -d /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux.gz \
+	> -d /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/powerpc/coffboot/vmlinux.gz \
 	> examples/uImage.TQM850L
 	Image Name:   2.4.4 kernel for TQM850L
 	Created:      Wed Jul 19 02:34:59 2000
@@ -3495,10 +3495,10 @@
 needs more space in Flash, but boots much faster since it does not
 need to be uncompressed:
 
-	-> gunzip /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux.gz
+	-> gunzip /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/powerpc/coffboot/vmlinux.gz
 	-> tools/mkimage -n '2.4.4 kernel for TQM850L' \
 	> -A ppc -O linux -T kernel -C none -a 0 -e 0 \
-	> -d /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux \
+	> -d /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/powerpc/coffboot/vmlinux \
 	> examples/uImage.TQM850L-uncompressed
 	Image Name:   2.4.4 kernel for TQM850L
 	Created:      Wed Jul 19 02:34:59 2000