arch/arm: Separate out architecture-specifics

Makefile

@@ -17,9 +17,9 @@ OBJCOPY = $(TOOL_PREFIX)objcopy
 OBJDUMP = $(TOOL_PREFIX)objdump
 
 # Define the flags we'll need for our tools
-INCLUDES = -I include
+INCLUDES = -I include -I arch/$(ARCH)/include
 KCFLAGS = -g -Wall -Wextra -Werror -nostdlib -nostartfiles -fno-builtin -std=gnu99 -include config.h $(INCLUDES)
-KLDFLAGS = -T link.ld -L /usr/lib/gcc/arm-elf/4.7.0/
+KLDFLAGS = -T arch/$(ARCH)/kernel.ld -L /usr/lib/gcc/arm-elf/4.7.0/
 EXTRA_LIBS = -lgcc
 
 # Include the config file so we don't compile/link unnecessary objects
@@ -30,7 +30,7 @@ KOBJS :=
 
 # Initialize sub-directory Makefile inclusion
 BASEDIR = $(shell pwd)
-SUBDIRS := boot kernel drivers
+SUBDIRS := arch/$(ARCH) kernel drivers
 ifneq (,$(SUBDIRS))
 	include $(patsubst %,%/kernel.mk,$(SUBDIRS))
 endif