| # |
| # Makefile.am - build a kernel+filesystem image for stand-alone Linux |
| # booting |
| # |
| # Copyright (C) 2012 ARM Limited. All rights reserved. |
| # |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE.txt file. |
| |
| # VE |
| PHYS_OFFSET := $(shell perl -I $(top_srcdir) $(top_srcdir)/findmem.pl $(KERNEL_DTB)) |
| UART_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 0 'arm,pl011') |
| SYSREGS_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 0 'arm,vexpress-sysreg') |
| CNTFRQ := 0x01800000 # 24Mhz |
| |
| DEFINES = -DCNTFRQ=$(CNTFRQ) |
| DEFINES += -DCPU_IDS=$(CPU_IDS) |
| DEFINES += -DSYSREGS_BASE=$(SYSREGS_BASE) |
| DEFINES += -DUART_BASE=$(UART_BASE) |
| |
| OFILES = |
| |
| if PSCI |
| BOOTMETHOD := psci.o |
| PSCI_NODE := psci { \ |
| compatible = \"arm,psci\"; \ |
| method = \"smc\"; \ |
| cpu_on = <0xc4000003>; \ |
| cpu_off = <0x84000002>; \ |
| }; |
| CPU_NODES := $(shell $(top_srcdir)/gen-cpu-nodes.sh $(CPU_IDS)) |
| CPUS_NODE := cpus { \ |
| $(CPU_NODES) \ |
| }; |
| else |
| BOOTMETHOD := spin.o |
| PSCI_NODE := |
| CPUS_NODE := |
| endif |
| |
| if GICV3 |
| GIC_DIST_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 0 'arm,gic-v3') |
| GIC_RDIST_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 1 'arm,gic-v3') |
| DEFINES += -DGIC_DIST_BASE=$(GIC_DIST_BASE) |
| DEFINES += -DGIC_RDIST_BASE=$(GIC_RDIST_BASE) |
| GIC := gic-v3.o |
| else |
| GIC_DIST_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 0 'arm,cortex-a15-gic') |
| GIC_CPU_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 1 'arm,cortex-a15-gic') |
| DEFINES += -DGIC_CPU_BASE=$(GIC_CPU_BASE) |
| DEFINES += -DGIC_DIST_BASE=$(GIC_DIST_BASE) |
| GIC := gic.o |
| endif |
| |
| MBOX_OFFSET := 0xfff8 |
| KERNEL_OFFSET := 0x80000 |
| LD_SCRIPT := model.lds.S |
| IMAGE := linux-system.axf |
| |
| FS_OFFSET := 0x10000000 |
| FILESYSTEM_START:= $(shell echo $$(($(PHYS_OFFSET) + $(FS_OFFSET)))) |
| FILESYSTEM_SIZE := $(shell stat -Lc %s $(FILESYSTEM) 2>/dev/null || echo 0) |
| FILESYSTEM_END := $(shell echo $$(($(FILESYSTEM_START) + $(FILESYSTEM_SIZE)))) |
| |
| FDT_OFFSET := 0x08000000 |
| |
| if INITRD |
| INITRD_FLAGS := -DUSE_INITRD |
| CHOSEN_NODE := chosen { \ |
| bootargs = \"$(CMDLINE)\"; \ |
| linux,initrd-start = <$(FILESYSTEM_START)>; \ |
| linux,initrd-end = <$(FILESYSTEM_END)>; \ |
| }; |
| else |
| INITRD_FLAGS := |
| CHOSEN_NODE := chosen { \ |
| bootargs = \"$(CMDLINE)\"; \ |
| }; |
| endif |
| |
| CPPFLAGS += $(INITRD_FLAGS) |
| |
| OFILES += boot.o cache.o $(GIC) mmu.o ns.o $(BOOTMETHOD) |
| |
| all: $(IMAGE) |
| |
| CLEANFILES = $(IMAGE) $(OFILES) model.lds fdt.dtb |
| |
| $(IMAGE): $(OFILES) model.lds fdt.dtb $(KERNEL_IMAGE) $(FILESYSTEM) |
| $(LD) $(OFILES) -o $@ --script=model.lds |
| |
| %.o: %.S Makefile |
| $(CC) $(CPPFLAGS) $(CFLAGS) $(DEFINES) -c -o $@ $< |
| |
| model.lds: $(LD_SCRIPT) Makefile |
| $(CPP) $(CPPFLAGS) -ansi -DPHYS_OFFSET=$(PHYS_OFFSET) -DMBOX_OFFSET=$(MBOX_OFFSET) -DKERNEL_OFFSET=$(KERNEL_OFFSET) -DFDT_OFFSET=$(FDT_OFFSET) -DFS_OFFSET=$(FS_OFFSET) -DKERNEL=$(KERNEL_IMAGE) -DFILESYSTEM=$(FILESYSTEM) -DBOOTMETHOD=$(BOOTMETHOD) -DGIC=$(GIC) -P -C -o $@ $< |
| |
| fdt.dtb: $(KERNEL_DTB) Makefile gen-cpu-nodes.sh |
| ( $(DTC) -O dts -I dtb $(KERNEL_DTB) ; echo "/ { $(CHOSEN_NODE) $(PSCI_NODE) $(CPUS_NODE) };" ) | $(DTC) -O dtb -o $@ - |
| |
| # The filesystem archive might not exist if INITRD is not being used |
| .PHONY: all clean $(FILESYSTEM) |
| |
| MAINTAINERCLEANFILES = aclocal.m4 compile config.* configure install-sh \ |
| Makefile.in missing |
