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authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-01-11 18:52:00 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-22 10:23:18 +0100
commitf96182e959a41e35df0adae9ae09a49ff8a618a8 (patch)
treee33c62be09a5f40812c888bc7d5722b9aaa81515 /drivers/base
parent91f382a46822c7a2913e6fabb2b882cc0f23144a (diff)
firmware_loader: move firmware/ to drivers/base/firmware_loader/builtin/
Currently, the 'firmware' directory only contains a single Makefile to embed extra firmware into the kernel. Move it to the more relevant place. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/firmware_loader/Makefile2
-rw-r--r--drivers/base/firmware_loader/builtin/.gitignore1
-rw-r--r--drivers/base/firmware_loader/builtin/Makefile40
3 files changed, 43 insertions, 0 deletions
diff --git a/drivers/base/firmware_loader/Makefile b/drivers/base/firmware_loader/Makefile
index 5c7f422f7528..0b2dfa6259c9 100644
--- a/drivers/base/firmware_loader/Makefile
+++ b/drivers/base/firmware_loader/Makefile
@@ -5,3 +5,5 @@ obj-$(CONFIG_FW_LOADER_USER_HELPER) += fallback_table.o
obj-$(CONFIG_FW_LOADER) += firmware_class.o
firmware_class-objs := main.o
firmware_class-$(CONFIG_FW_LOADER_USER_HELPER) += fallback.o
+
+obj-y += builtin/
diff --git a/drivers/base/firmware_loader/builtin/.gitignore b/drivers/base/firmware_loader/builtin/.gitignore
new file mode 100644
index 000000000000..9c8bdb9fdcc3
--- /dev/null
+++ b/drivers/base/firmware_loader/builtin/.gitignore
@@ -0,0 +1 @@
+*.gen.S
diff --git a/drivers/base/firmware_loader/builtin/Makefile b/drivers/base/firmware_loader/builtin/Makefile
new file mode 100644
index 000000000000..37e5ae387400
--- /dev/null
+++ b/drivers/base/firmware_loader/builtin/Makefile
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# Create $(fwdir) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a
+# leading /, it's relative to $(srctree).
+fwdir := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE_DIR))
+fwdir := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir))
+
+obj-y := $(addsuffix .gen.o, $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE)))
+
+FWNAME = $(patsubst $(obj)/%.gen.S,%,$@)
+FWSTR = $(subst /,_,$(subst .,_,$(subst -,_,$(FWNAME))))
+ASM_WORD = $(if $(CONFIG_64BIT),.quad,.long)
+ASM_ALIGN = $(if $(CONFIG_64BIT),3,2)
+PROGBITS = $(if $(CONFIG_ARM),%,@)progbits
+
+filechk_fwbin = \
+ echo "/* Generated by $(src)/Makefile */" ;\
+ echo " .section .rodata" ;\
+ echo " .p2align $(ASM_ALIGN)" ;\
+ echo "_fw_$(FWSTR)_bin:" ;\
+ echo " .incbin \"$(fwdir)/$(FWNAME)\"" ;\
+ echo "_fw_end:" ;\
+ echo " .section .rodata.str,\"aMS\",$(PROGBITS),1" ;\
+ echo " .p2align $(ASM_ALIGN)" ;\
+ echo "_fw_$(FWSTR)_name:" ;\
+ echo " .string \"$(FWNAME)\"" ;\
+ echo " .section .builtin_fw,\"a\",$(PROGBITS)" ;\
+ echo " .p2align $(ASM_ALIGN)" ;\
+ echo " $(ASM_WORD) _fw_$(FWSTR)_name" ;\
+ echo " $(ASM_WORD) _fw_$(FWSTR)_bin" ;\
+ echo " $(ASM_WORD) _fw_end - _fw_$(FWSTR)_bin"
+
+$(obj)/%.gen.S: FORCE
+ $(call filechk,fwbin)
+
+# The .o files depend on the binaries directly; the .S files don't.
+$(addprefix $(obj)/, $(obj-y)): $(obj)/%.gen.o: $(fwdir)/%
+
+targets := $(patsubst $(obj)/%,%, \
+ $(shell find $(obj) -name \*.gen.S 2>/dev/null))