[ARM] Clean up io-acorn.

io-acorn.o is not necessary for CLPS711x build - the functions it
provides are defined as macros in asm/io.h, so they will never be
referenced.

io-acorn.o only provides insl/outsl, so the half-word IO macros
within are never used; remove them.

arch/arm/lib/Makefile

@@ -24,7 +24,6 @@ lib-$(CONFIG_ARCH_RPC)		+= ecard.o io-acorn.o floppydma.o
 lib-$(CONFIG_ARCH_CLPS7500)	+= io-acorn.o
 lib-$(CONFIG_ARCH_L7200)	+= io-acorn.o
 lib-$(CONFIG_ARCH_SHARK)	+= io-shark.o
-lib-$(CONFIG_ARCH_CLPS711X)	+= io-acorn.o
 
 $(obj)/csumpartialcopy.o:	$(obj)/csumpartialcopygeneric.S
 $(obj)/csumpartialcopyuser.o:	$(obj)/csumpartialcopygeneric.S

arch/arm/lib/io-acorn.S

@@ -17,31 +17,6 @@
 		.text
 		.align
 
-		.equ	diff_pcio_base, PCIO_BASE - IO_BASE
-
-		.macro	outw2	rd
-		mov	r8, \rd, lsl #16
-		orr	r8, r8, r8, lsr #16
-		str	r8, [r3, r0, lsl #2]
-		mov	r8, \rd, lsr #16
-		orr	r8, r8, r8, lsl #16
-		str	r8, [r3, r0, lsl #2]
-		.endm
-
-		.macro	inw2	rd, mask, temp
-		ldr	\rd, [r0]
-		and	\rd, \rd, \mask
-		ldr	\temp, [r0]
-		orr	\rd, \rd, \temp, lsl #16
-		.endm
-
-		.macro	addr	rd
-		tst	\rd, #0x80000000
-		mov	\rd, \rd, lsl #2
-		add	\rd, \rd, #IO_BASE
-		addeq	\rd, \rd, #diff_pcio_base
-		.endm
-
 .iosl_warning:
 		.ascii	"<4>insl/outsl not implemented, called from %08lX\0"
 		.align