image: add KERNEL_SIZE to the default device vars
[librecmc/librecmc.git] / target / linux / ramips / image / Makefile
1 #
2 # Copyright (C) 2008-2011 OpenWrt.org
3 #
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6 #
7 include $(TOPDIR)/rules.mk
8 include $(INCLUDE_DIR)/image.mk
9
10 define imgname
11 $(BIN_DIR)/$(IMG_PREFIX)-$(2)-$(1)
12 endef
13
14 define sysupname
15 $(call imgname,$(1),$(2))-sysupgrade.bin
16 endef
17
18 VMLINUX:=$(IMG_PREFIX)-vmlinux
19 UIMAGE:=$(IMG_PREFIX)-uImage
20
21 define Image/Build/Initramfs
22         $(call Image/Build/Profile/$(PROFILE),initramfs)
23 endef
24
25 DEVICE_VARS += DTS IMAGE_SIZE
26
27 loadaddr-y := 0x80000000
28 loadaddr-$(CONFIG_TARGET_ramips_rt288x) := 0x88000000
29 loadaddr-$(CONFIG_TARGET_ramips_mt7621) := 0x80001000
30
31 KERNEL_LOADADDR := $(loadaddr-y)
32
33 KERNEL_DTB = kernel-bin | patch-dtb | lzma
34 define Device/Default
35   PROFILES = Default $$(DTS)
36   KERNEL_DEPENDS = $$(wildcard ../dts/$$(DTS).dts)
37   KERNEL := $(KERNEL_DTB) | uImage lzma
38   IMAGES := sysupgrade.bin
39   IMAGE_SIZE := $(ralink_default_fw_size_8M)
40   IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
41 endef
42
43 define Build/patch-dtb
44         $(call Image/BuildDTB,../dts/$(DTS).dts,$@.dtb)
45         $(STAGING_DIR_HOST)/bin/patch-dtb $@ $@.dtb
46 endef
47
48 define Build/trx
49         $(STAGING_DIR_HOST)/bin/trx \
50                 -o $@ \
51                 -m $(IMAGE_SIZE) \
52                 -f $(IMAGE_KERNEL) \
53                 -a 4 -f $(IMAGE_ROOTFS)
54 endef
55
56 define Build/relocate-kernel
57         ( \
58                 dd if=$(KDIR)/loader.bin bs=32 conv=sync && \
59                 perl -e '@s = stat("$@"); print pack("V", @s[7])' && \
60                 cat $@ \
61         ) > $@.new
62         mv $@.new $@
63 endef
64
65 define MkCombineduImage
66         $(call PatchKernelLzma,$(2),$(3))
67         if [ `stat -c%s "$(KDIR)/vmlinux-$(2).bin.lzma"` -gt `expr $(4) - 64` ]; then \
68                 echo "Warning: $(KDIR)/vmlinux-$(2).bin.lzma is too big" >&2; \
69         else if [ `stat -c%s "$(KDIR)/root.$(1)"` -gt $(5) ]; then \
70                 echo "Warning: $(KDIR)/root.$(1) is too big" >&2; \
71         else \
72                 ( dd if=$(KDIR)/vmlinux-$(2).bin.lzma bs=`expr $(4) - 64` conv=sync ; dd if=$(KDIR)/root.$(1) ) > $(KDIR)/vmlinux-$(2).bin.lzma.combined ; \
73         fi ; fi
74         $(call MkImage,lzma,$(KDIR)/vmlinux-$(2).bin.lzma.combined,$(call sysupname,$(1),$(2)),$(6))
75 endef
76
77 define Build/umedia-header
78         fix-u-media-header -T 0x46 -B $(1) -i $@ -o $@.new && mv $@.new $@
79 endef
80
81 define Build/senao-header
82         $(STAGING_DIR_HOST)/bin/mksenaofw $(1) -e $@ -o $@.new
83         mv $@.new $@
84 endef
85
86 define Build/seama
87         $(STAGING_DIR_HOST)/bin/seama -i $@ $(1)
88         mv $@.seama $@
89 endef
90
91 define Build/seama-seal
92         $(call Build/seama,-s $@.seama $(1))
93 endef
94
95 #
96 # The real magic happens inside these templates
97 #
98 # $(1), compression method
99 # $(2), filename of image data
100 # $(3), output filename
101 define MkImage
102         $(eval imagename=$(if $(4),$(4),MIPS OpenWrt Linux-$(LINUX_VERSION)))
103         -mkimage -A mips -O linux -T kernel -C $(1) -a $(loadaddr-y) -e $(loadaddr-y) \
104                 -n "$(imagename)" \
105                 -d $(2) $(3)
106 endef
107
108 define CompressLzma
109         $(STAGING_DIR_HOST)/bin/lzma e $(1) -lc1 -lp2 -pb2 $(2)
110 endef
111
112 define MkImageSysupgrade/squashfs
113         $(eval output_name=$(IMG_PREFIX)-$(2)-$(1)-$(if $(4),$(4),sysupgrade).bin)
114         cat $(KDIR)/vmlinux-$(2).uImage $(KDIR)/root.$(1) > $(KDIR)/$(output_name)
115         $(call prepare_generic_squashfs,$(KDIR)/$(output_name))
116         if [ `stat -c%s "$(KDIR)/$(output_name)"` -gt $(3) ]; then \
117                 echo "Warning: $(KDIR)/$(output_name) is too big" >&2; \
118         else \
119                 $(CP) $(KDIR)/$(output_name) $(BIN_DIR)/$(output_name); \
120         fi
121 endef
122
123 # $(1), lowercase board name like "mt7620a_v22sg"
124 # $(2), DTS filename without .dts extension
125 # $(3), optional filename suffix, e.g. "-initramfs"
126 define PatchKernelLzmaDtb
127         cp $(KDIR)/vmlinux$(3) $(KDIR)/vmlinux-$(1)$(3)
128         $(call Image/BuildDTB,../dts/$(2).dts,$(KDIR)/$(2).dtb)
129         $(STAGING_DIR_HOST)/bin/patch-dtb $(KDIR)/vmlinux-$(1)$(3) $(KDIR)/$(2).dtb
130         $(call CompressLzma,$(KDIR)/vmlinux-$(1)$(3),$(KDIR)/vmlinux-$(1)$(3).bin.lzma)
131 endef
132
133 # $(1), lowercase board name
134 # $(2), DTS filename without .dts extension
135 # $(3), ih_name field of uImage header
136 # $(4), optional filename suffix, e.g. "-initramfs"
137 define MkImageLzmaDtb
138         $(call PatchKernelLzmaDtb,$(1),$(2),$(4))
139         $(call MkImage,lzma,$(KDIR)/vmlinux-$(1)$(4).bin.lzma,$(KDIR)/vmlinux-$(1)$(4).uImage,$(3))
140 endef
141
142 # $(1), Rootfs type, e.g. squashfs
143 # $(2), lowercase board name
144 # $(3), DTS filename without .dts extension
145 # $(4), maximum size of sysupgrade image
146 # $(5), uImage header's ih_name field
147 define BuildFirmware/OF
148         $(call MkImageLzmaDtb,$(2),$(3),$(5))
149         $(call MkImageSysupgrade/$(1),$(1),$(2),$(4),$(6))
150 endef
151
152 # $(1), squashfs/initramfs
153 # $(2), lowercase board name
154 # $(3), DTS filename without .dts extension
155 # $(4), ih_name field of uImage header
156 define BuildFirmware/OF/initramfs
157         $(call MkImageLzmaDtb,$(2),$(3),$(4),-initramfs)
158         $(CP) $(KDIR)/vmlinux-$(2)-initramfs.uImage $(call imgname,$(1),$(2))-uImage.bin
159 endef
160
161 # Build images for default ralink layout for 4MB flash
162 # kernel + roots = 0x3b0000
163 # $(1) = squashfs/initramfs
164 # $(2) = lowercase board name
165 # $(3) = dts file
166 ralink_default_fw_size_4M=3866624
167 BuildFirmware/Default4M/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(ralink_default_fw_size_4M),$(4))
168 BuildFirmware/Default4M/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3),$(4))
169
170 # Build images for default ralink layout for 8MB flash
171 # kernel + roots = 0x7b0000
172 # $(1) = squashfs/initramfs
173 # $(2) = lowercase board name
174 # $(3) = dts file
175 # $(4) = uImage header name field
176 ralink_default_fw_size_8M=8060928
177 BuildFirmware/Default8M/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(ralink_default_fw_size_8M),$(4))
178 BuildFirmware/Default8M/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3),$(4))
179
180 ralink_default_fw_size_16M=16121856
181 BuildFirmware/Default16M/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(ralink_default_fw_size_16M),$(4))
182 BuildFirmware/Default16M/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3),$(4))
183
184 ralink_default_fw_size_32M=33226752
185 BuildFirmware/Default32M/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(ralink_default_fw_size_32M),$(4))
186 BuildFirmware/Default32M/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3),$(4))
187
188 # Build images for a custom sized flash layout
189 # $(1) = squashfs/initramfs
190 # $(2) = lowercase board name
191 # $(3) = dts file
192 # $(4) = kernel + rootfs size
193 BuildFirmware/CustomFlash/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(4),$(5),$(6))
194 BuildFirmware/CustomFlash/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3))
195
196 # Some boards need a special header inside the uImage to make them bootable
197 define BuildFirmware/CustomFlashFactory/squashfs
198         $(call BuildFirmware/CustomFlash/$(1),$(1),$(2),$(3),$(4))
199         $(call BuildFirmware/CustomFlash/$(1),$(1),$(2),$(3),$(4),$(5),$(6))
200 endef
201 BuildFirmware/CustomFlashFactory/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3))
202
203 # wrappers for boards that have 4MB and 8MB versions
204 define BuildFirmware/DefaultDualSize/squashfs
205         $(call BuildFirmware/Default4M/$(1),$(1),$(2)-4M,$(3)-4M)
206         $(call BuildFirmware/Default8M/$(1),$(1),$(2)-8M,$(3)-8M)
207 endef
208 define BuildFirmware/DefaultDualSize/initramfs
209         $(call BuildFirmware/OF/initramfs,$(1),$(2)-4M,$(3)-4M)
210         $(call BuildFirmware/OF/initramfs,$(1),$(2)-8M,$(3)-8M)
211 endef
212
213 define BuildFirmware/PorayDualSize/squashfs
214         $(call BuildFirmware/DefaultDualSize/$(1),$(1),$(2),$(3))
215         if [ -e "$(call sysupname,$(1),$(2)-4M)" ]; then \
216                 mkporayfw -B $(3) -F 4M \
217                         -f $(call sysupname,$(1),$(2)-4M) \
218                         -o $(call imgname,$(1),$(2)-4M)-factory.bin; \
219         fi
220         if [ -e "$(call sysupname,$(1),$(2)-8M)" ]; then \
221                 mkporayfw -B $(3) -F 8M \
222                         -f $(call sysupname,$(1),$(2)-8M) \
223                         -o $(call imgname,$(1),$(2)-8M)-factory.bin; \
224         fi
225 endef
226 BuildFirmware/PorayDualSize/initramfs=$(call BuildFirmware/DefaultDualSize/initramfs,$(1),$(2),$(3))
227
228
229 ifeq ($(SUBTARGET),rt288x)
230 include rt288x.mk
231 endif
232
233 ifeq ($(SUBTARGET),rt305x)
234 include rt305x.mk
235 include rt305x-legacy.mk
236 endif
237
238 ifeq ($(SUBTARGET),rt3883)
239 include rt3883.mk
240 endif
241
242 ifeq ($(SUBTARGET),mt7620)
243 include mt7620.mk
244 endif
245
246 ifeq ($(SUBTARGET),mt7621)
247 include mt7621.mk
248 endif
249
250 ifeq ($(SUBTARGET),mt7628)
251 include mt7628.mk
252 endif
253
254 ifeq ($(SUBTARGET),mt7688)
255 include mt7688.mk
256 endif
257
258 ifdef LEGACY_DEVICES
259 #
260 # Generic Targets - only needed for legacy image building code
261 #
262 define Image/BuildKernel
263         cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(VMLINUX).elf
264         cp $(KDIR)/vmlinux $(BIN_DIR)/$(VMLINUX).bin
265         $(call CompressLzma,$(KDIR)/vmlinux,$(KDIR)/vmlinux.bin.lzma)
266         $(call MkImage,lzma,$(KDIR)/vmlinux.bin.lzma,$(KDIR)/uImage.lzma)
267         cp $(KDIR)/uImage.lzma $(BIN_DIR)/$(UIMAGE).bin
268 endef
269
270 define Image/BuildKernel/Initramfs
271         cp $(KDIR)/vmlinux-initramfs.elf $(BIN_DIR)/$(VMLINUX)-initramfs.elf
272         cp $(KDIR)/vmlinux-initramfs $(BIN_DIR)/$(VMLINUX)-initramfs.bin
273         $(call CompressLzma,$(KDIR)/vmlinux-initramfs,$(KDIR)/vmlinux-initramfs.bin.lzma)
274         $(call MkImage,lzma,$(KDIR)/vmlinux-initramfs.bin.lzma,$(KDIR)/uImage-initramfs.lzma)
275         cp $(KDIR)/uImage-initramfs.lzma $(BIN_DIR)/$(UIMAGE)-initramfs.bin
276         $(call Image/Build/Initramfs)
277 endef
278
279 define Image/Build
280         $(call Image/Build/$(1))
281         dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=128k conv=sync
282 endef
283
284 define Image/Build/Profile
285         $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(call Image/Build/Profile/$(1),initramfs))
286         $(call Image/Build/Profile/$(1),$(2))
287 endef
288
289 endif
290
291 $(eval $(call BuildImage))