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authorTom Rini <trini@konsulko.com>2019-08-09 23:27:15 -0400
committerTom Rini <trini@konsulko.com>2019-08-09 23:27:15 -0400
commit9fd8b2c8c714b383b6768d53d7b46682fdf87013 (patch)
tree47d9b59ac1129e9bf71a065d5f3c526d1ada15a5 /scripts/Makefile.lib
parent188f0109055300a099f90bedd96b0e93d28acfbd (diff)
parentdbaec467671fd5b56cf380121340844863f5472d (diff)
Merge https://gitlab.denx.de/u-boot/custodians/u-boot-x86
- Enable SD slot on Intel Edison - Populate CSRT ACPI table for shared DMA controller on Intel Tangier - Convert Intel ICH-SPI driver to use new spi-mem ops - Enable config_distro_bootcmd for QEMU x86 - Support U-Boot as a payload for Intel Slim Bootloader - Avoid writing temporary asl files into the source tree which fixes the parallel build issue occasionally seen
Diffstat (limited to 'scripts/Makefile.lib')
-rw-r--r--scripts/Makefile.lib17
1 files changed, 14 insertions, 3 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 2f5e28cac3..ef116e0e0a 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -395,11 +395,22 @@ $(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o $(obj)/efi_free
# ACPI
# ---------------------------------------------------------------------------
+#
+# This first sends the file (typically dsdt.asl) through the preprocessor
+# resolve includes and any CONFIG options used. This produces dsdt.asl.tmp
+# which is pure ASL code. The Intel ASL (ACPI (Advanced Configuration and Power
+# Interface) Source Language compiler (iasl) then converts this ASL code into a
+# C file containing the hex data to build into U-Boot. This file is called
+# dsdt.hex (despite us setting the prefix to .../dsdt.asl.tmp) so must be
+# renamed to dsdt.c for consumption by the build system.
+ASL_TMP = $(patsubst %.c,%.asl.tmp,$@)
+
quiet_cmd_acpi_c_asl= ASL $<
cmd_acpi_c_asl= \
- $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \
- iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
- mv $(patsubst %.asl,%.hex,$<) $@
+ $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) \
+ -o $(ASL_TMP) $< && \
+ iasl -p $@ -tc $(ASL_TMP) $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
+ mv $(patsubst %.c,%.hex,$@) $@
$(obj)/dsdt.c: $(src)/dsdt.asl
$(call cmd,acpi_c_asl)