From 867bcb63e79f66bc88d4546d132c5895ea339a66 Mon Sep 17 00:00:00 2001 From: Saket Sinha Date: Sat, 22 Aug 2015 12:20:55 +0530 Subject: x86: Generate a valid ACPI table Implement write_acpi_table() to create a minimal working ACPI table. This includes writing FACS, XSDT, RSDP, FADT, MCFG, MADT, DSDT & SSDT ACPI table entries. Use a Kconfig option GENERATE_ACPI_TABLE to tell U-Boot whether we need actually write the APCI table just like we did for PIRQ routing, MP table and SFI tables. With ACPI table existence, linux kernel gets control of power management, thermal management, configuration management and monitoring in hardware. Signed-off-by: Saket Sinha Reviewed-by: Bin Meng Tidied up whitespace and aligned some tabs: Signed-off-by: Simon Glass --- scripts/Makefile.lib | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'scripts/Makefile.lib') diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 1c949fc0eb..ed30bf5bb9 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -297,6 +297,17 @@ $(obj)/%.dtb: $(src)/%.dts FORCE dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) +# ACPI +# --------------------------------------------------------------------------- +quiet_cmd_acpi_c_asl= ASL $@ +cmd_acpi_c_asl= \ + $(CPP) -x assembler-with-cpp -P -o $<.tmp $<; \ + iasl -p $< -tc -va $<.tmp; \ + mv $(patsubst %.asl,%.hex,$<) $@ + +$(obj)/%.c: $(src)/%.asl + $(call cmd,acpi_c_asl) + # Bzip2 # --------------------------------------------------------------------------- -- cgit v1.2.1