mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 23:16:37 +07:00
f05131cd7a
Instead of remembering to specify DTB= on the make commandline, this commit allows the much friendlier make simpleImage.<dts> where <dts>.dts is expected to be found in arch/microblaze/boot/dts/ The resulting vmlinux, with the compiled DTS linked in, will be copied to boot/simpleImage.<dts> This mirrors the same functionality as on PowerPC, albeit achieving it in a slightly different way. + strip simpleImage file The size of output file is very similar to linux.bin. vmlinux - full elf without fdt blob simpleImage.<dtb name>.unstrip - full elf with fdt blob simpleImage.<dtb name> - stripped elf with fdt blob Add symlink to generic system.dts in platform folder Signed-off-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
94 lines
3.1 KiB
Makefile
94 lines
3.1 KiB
Makefile
ifeq ($(CONFIG_MMU),y)
|
|
UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
|
|
else
|
|
UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
|
|
endif
|
|
|
|
# What CPU vesion are we building for, and crack it open
|
|
# as major.minor.rev
|
|
CPU_VER := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
|
|
CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
|
|
CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
|
|
CPU_REV := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
|
|
|
|
export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
|
|
|
|
# Use cpu-related CONFIG_ vars to set compile options.
|
|
# The various CONFIG_XILINX cpu features options are integers 0/1/2...
|
|
# rather than bools y/n
|
|
|
|
# Work out HW multipler support. This is icky.
|
|
# 1. Spartan2 has no HW multiplers.
|
|
# 2. MicroBlaze v3.x always uses them, except in Spartan 2
|
|
# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
|
|
ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
|
|
ifeq ($(CPU_MAJOR),3)
|
|
CPUFLAGS-1 += -mno-xl-soft-mul
|
|
else
|
|
# USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
|
|
CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
|
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
|
|
endif
|
|
endif
|
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
|
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
|
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
|
|
|
|
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
|
|
|
|
# r31 holds current when in kernel mode
|
|
KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
|
|
|
|
LDFLAGS :=
|
|
LDFLAGS_vmlinux :=
|
|
|
|
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
|
|
|
|
head-y := arch/microblaze/kernel/head.o
|
|
libs-y += arch/microblaze/lib/
|
|
libs-y += $(LIBGCC)
|
|
core-y += arch/microblaze/kernel/
|
|
core-y += arch/microblaze/mm/
|
|
core-y += arch/microblaze/platform/
|
|
|
|
boot := arch/microblaze/boot
|
|
|
|
# Are we making a simpleImage.<boardname> target? If so, crack out the boardname
|
|
DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
|
|
|
|
ifneq ($(DTB),)
|
|
core-y += $(boot)/
|
|
endif
|
|
|
|
# defines filename extension depending memory management type
|
|
ifeq ($(CONFIG_MMU),)
|
|
MMU := -nommu
|
|
endif
|
|
|
|
export MMU DTB
|
|
|
|
all: linux.bin
|
|
|
|
BOOT_TARGETS = linux.bin linux.bin.gz simpleImage.%
|
|
|
|
archclean:
|
|
$(Q)$(MAKE) $(clean)=$(boot)
|
|
|
|
$(BOOT_TARGETS): vmlinux
|
|
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
|
|
|
|
define archhelp
|
|
echo '* linux.bin - Create raw binary'
|
|
echo ' linux.bin.gz - Create compressed raw binary'
|
|
echo ' simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
|
|
echo ' - stripped elf with fdt blob
|
|
echo ' simpleImage.<dt>.unstrip - full ELF image with fdt blob'
|
|
echo ' *_defconfig - Select default config from arch/microblaze/configs'
|
|
echo ''
|
|
echo ' Targets with <dt> embed a device tree blob inside the image'
|
|
echo ' These targets support board with firmware that does not'
|
|
echo ' support passing a device tree directly. Replace <dt> with the'
|
|
echo ' name of a dts file from the arch/microblaze/boot/dts/ directory'
|
|
echo ' (minus the .dts extension).'
|
|
endef
|