firmware/Makefile

   1 #
   2 # kbuild file for firmware/
   3 #
   4
   5 # Create $(fwabs) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a
   6 # leading /, it's relative to $(srctree).
   7 fwdir := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE_DIR))
   8 fwabs := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir))
   9
  10 fw-external-y := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE))
  11
  12 # There are three cases to care about:
  13 # 1. Building kernel with CONFIG_FIRMWARE_IN_KERNEL=y -- $(fw-shipped-y) should
  14 #    include the firmware files to include, according to .config
  15 # 2. 'make modules_install', which will install firmware for modules, and
  16 #    _also_ for the in-kernel drivers when CONFIG_FIRMWARE_IN_KERNEL=n
  17 # 3. 'make firmware_install', which installs all firmware, unconditionally.
  18
  19 # For the former two cases we want $(fw-shipped-y) and $(fw-shipped-m) to be
  20 # accurate. In the latter case it doesn't matter -- it'll use $(fw-shipped-all).
  21 # But be aware that the config file might not be included at all.
  22
  23 fw-shipped-$(CONFIG_ATARI_DSP56K) += dsp56k/bootstrap.bin
  24 fw-shipped-$(CONFIG_BNX2X) += bnx2x/bnx2x-e1-7.2.51.0.fw \
  25                               bnx2x/bnx2x-e1h-7.2.51.0.fw \
  26                               bnx2x/bnx2x-e2-7.2.51.0.fw
  27 fw-shipped-$(CONFIG_BNX2) +=    bnx2/bnx2-mips-09-6.2.1b.fw \
  28                                 bnx2/bnx2-rv2p-06-6.0.15.fw \
  29                                 bnx2/bnx2-mips-06-6.2.3.fw \
  30                                 bnx2/bnx2-rv2p-09-6.0.17.fw \
  31                                 bnx2/bnx2-rv2p-09ax-6.0.17.fw
  32 fw-shipped-$(CONFIG_E100) += e100/d101m_ucode.bin e100/d101s_ucode.bin \
  33                              e100/d102e_ucode.bin
  34 fw-shipped-$(CONFIG_PCMCIA_PCNET) +=
  35
  36 fw-shipped-$(CONFIG_PCMCIA_3C589) +=
  37 fw-shipped-$(CONFIG_PCMCIA_3C574) +=
  38 fw-shipped-$(CONFIG_SERIAL_8250_CS) +=
  39
  40 fw-shipped-$(CONFIG_SCSI_QLOGIC_1280) += qlogic/1040.bin qlogic/1280.bin \
  41                                          qlogic/12160.bin
  42 fw-shipped-$(CONFIG_SCSI_QLOGICPTI) += qlogic/isp1000.bin
  43 fw-shipped-$(CONFIG_INFINIBAND_QIB) += qlogic/sd7220.fw
  44 fw-shipped-$(CONFIG_SND_KORG1212) += korg/k1212.dsp
  45 fw-shipped-$(CONFIG_SND_SB16_CSP) += sb16/mulaw_main.csp sb16/alaw_main.csp \
  46                                      sb16/ima_adpcm_init.csp \
  47                                      sb16/ima_adpcm_playback.csp \
  48                                      sb16/ima_adpcm_capture.csp
  49 fw-shipped-$(CONFIG_SND_WAVEFRONT) += yamaha/yss225_registers.bin
  50 fw-shipped-$(CONFIG_TIGON3) += tigon/tg3.bin tigon/tg3_tso.bin \
  51                                tigon/tg3_tso5.bin
  52 fw-shipped-$(CONFIG_TYPHOON) += 3com/typhoon.bin
  53 fw-shipped-$(CONFIG_USB_EMI26) += emi26/loader.fw emi26/firmware.fw \
  54                                   emi26/bitstream.fw
  55 fw-shipped-$(CONFIG_USB_EMI62) += emi62/loader.fw emi62/bitstream.fw \
  56                                   emi62/spdif.fw emi62/midi.fw
  57 fw-shipped-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat_loader.fw whiteheat.fw \
  58                                            # whiteheat_loader_debug.fw
  59 fw-shipped-$(CONFIG_USB_VICAM) += vicam/firmware.fw
  60
  61 fw-shipped-all := $(fw-shipped-y) $(fw-shipped-m) $(fw-shipped-)
  62
  63 quiet_cmd_ihex  = IHEX    $@
  64       cmd_ihex  = $(OBJCOPY) -Iihex -Obinary $< $@
  65
  66 quiet_cmd_ihex2fw  = IHEX2FW $@
  67       cmd_ihex2fw  = $(objtree)/$(obj)/ihex2fw $< $@
  68
  69 quiet_cmd_h16tofw  = H16TOFW $@
  70       cmd_h16tofw  = $(objtree)/$(obj)/ihex2fw -w $< $@
  71
  72 quiet_cmd_fwbin = MK_FW   $@
  73       cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)";                \
  74                   FWSTR="$(subst /,_,$(subst .,_,$(subst -,_,$(patsubst      \
  75                                 firmware/%.gen.S,%,$@))))";                  \
  76                   ASM_WORD=$(if $(CONFIG_64BIT),.quad,.long);                \
  77                   ASM_ALIGN=$(if $(CONFIG_64BIT),3,2);                       \
  78                   PROGBITS=$(if $(CONFIG_ARM),%,@)progbits;                  \
  79                   echo "/* Generated by firmware/Makefile */"           > $@;\
  80                   echo "    .section .rodata"                           >>$@;\
  81                   echo "    .p2align $${ASM_ALIGN}"                     >>$@;\
  82                   echo "_fw_$${FWSTR}_bin:"                             >>$@;\
  83                   echo "    .incbin \"$(2)\""                           >>$@;\
  84                   echo "_fw_end:"                                       >>$@;\
  85                   echo "   .section .rodata.str,\"aMS\",$${PROGBITS},1" >>$@;\
  86                   echo "    .p2align $${ASM_ALIGN}"                     >>$@;\
  87                   echo "_fw_$${FWSTR}_name:"                            >>$@;\
  88                   echo "    .string \"$$FWNAME\""                       >>$@;\
  89                   echo "    .section .builtin_fw,\"a\",$${PROGBITS}"    >>$@;\
  90                   echo "    .p2align $${ASM_ALIGN}"                     >>$@;\
  91                   echo "    $${ASM_WORD} _fw_$${FWSTR}_name"            >>$@;\
  92                   echo "    $${ASM_WORD} _fw_$${FWSTR}_bin"             >>$@;\
  93                   echo "    $${ASM_WORD} _fw_end - _fw_$${FWSTR}_bin"   >>$@;
  94
  95 # One of these files will change, or come into existence, whenever
  96 # the configuration changes between 32-bit and 64-bit. The .S files
  97 # need to change when that happens.
  98 wordsize_deps := $(wildcard include/config/64bit.h include/config/32bit.h \
  99                 include/config/ppc32.h include/config/ppc64.h \
 100                 include/config/superh32.h include/config/superh64.h \
 101                 include/config/x86_32.h include/config/x86_64.h)
 102
 103 $(patsubst %,$(obj)/%.gen.S, $(fw-shipped-y)): %: $(wordsize_deps)
 104         $(call cmd,fwbin,$(patsubst %.gen.S,%,$@))
 105 $(patsubst %,$(obj)/%.gen.S, $(fw-external-y)): %: $(wordsize_deps) \
 106                 include/config/extra/firmware/dir.h
 107         $(call cmd,fwbin,$(fwabs)/$(patsubst $(obj)/%.gen.S,%,$@))
 108
 109 # The .o files depend on the binaries directly; the .S files don't.
 110 $(patsubst %,$(obj)/%.gen.o, $(fw-shipped-y)): %.gen.o: %
 111 $(patsubst %,$(obj)/%.gen.o, $(fw-external-y)): $(obj)/%.gen.o: $(fwdir)/%
 112
 113 # .ihex is used just as a simple way to hold binary files in a source tree
 114 # where binaries are frowned upon. They are directly converted with objcopy.
 115 $(obj)/%: $(obj)/%.ihex
 116         $(call cmd,ihex)
 117
 118 # Don't depend on ihex2fw if we're installing and it already exists.
 119 # Putting it after | in the dependencies doesn't seem sufficient when
 120 # we're installing after a cross-compile, because ihex2fw has dependencies
 121 # on stuff like /usr/lib/gcc/ppc64-redhat-linux/4.3.0/include/stddef.h and
 122 # thus wants to be rebuilt. Which it can't be, if the prebuilt kernel tree
 123 # is exported read-only for someone to run 'make install'.
 124 ifeq ($(INSTALL):$(wildcard $(obj)/ihex2fw),install:$(obj)/ihex2fw)
 125 ihex2fw_dep :=
 126 else
 127 ihex2fw_dep := $(obj)/ihex2fw
 128 endif
 129
 130 # .HEX is also Intel HEX, but where the offset and length in each record
 131 # is actually meaningful, because the firmware has to be loaded in a certain
 132 # order rather than as a single binary blob. Thus, we convert them into our
 133 # more compact binary representation of ihex records (<linux/ihex.h>)
 134 $(obj)/%.fw: $(obj)/%.HEX $(ihex2fw_dep)
 135         $(call cmd,ihex2fw)
 136
 137 # .H16 is our own modified form of Intel HEX, with 16-bit length for records.
 138 $(obj)/%.fw: $(obj)/%.H16 $(ihex2fw_dep)
 139         $(call cmd,h16tofw)
 140
 141 obj-y                            += $(patsubst %,%.gen.o, $(fw-external-y))
 142 obj-$(CONFIG_FIRMWARE_IN_KERNEL) += $(patsubst %,%.gen.o, $(fw-shipped-y))
 143
 144 ifeq ($(KBUILD_SRC),)
 145 # Makefile.build only creates subdirectories for O= builds, but external
 146 # firmware might live outside the kernel source tree
 147 _dummy := $(foreach d,$(addprefix $(obj)/,$(dir $(fw-external-y))), $(shell [ -d $(d) ] || mkdir -p $(d)))
 148 endif
 149
 150 # Remove .S files and binaries created from ihex
 151 # (during 'make clean' .config isn't included so they're all in $(fw-shipped-))
 152 targets := $(fw-shipped-) $(patsubst $(obj)/%,%, \
 153                                 $(shell find $(obj) -name \*.gen.S 2>/dev/null))
 154
 155 # Without this, built-in.o won't be created when it's empty, and the
 156 # final vmlinux link will fail.
 157 obj- := dummy
 158
 159 hostprogs-y := ihex2fw