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Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +00001#
2# (C) Copyright 2000-2011
3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
5# (C) Copyright 2011
6# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
7#
8# (C) Copyright 2011
9# Texas Instruments Incorporated - http://www.ti.com/
10# Aneesh V <aneesh@ti.com>
11#
12# This file is released under the terms of GPL v2 and any later version.
13# See the file COPYING in the root directory of the source tree for details.
14#
15# Based on top-level Makefile.
16#
17
18CONFIG_SPL_BUILD := y
19export CONFIG_SPL_BUILD
20
21include $(TOPDIR)/config.mk
22
23# We want the final binaries in this directory
24obj := $(OBJTREE)/spl/
25
Scott Woode66443f2012-08-14 01:44:29 +000026HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000027
Marek Vasut08e4f702011-09-11 17:56:19 +000028ifdef CONFIG_SPL_START_S_PATH
29START_PATH := $(subst ",,$(CONFIG_SPL_START_S_PATH))
30else
31START_PATH := $(CPUDIR)
32endif
33
34START := $(START_PATH)/start.o
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000035
36LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
37LIBS-y += $(CPUDIR)/lib$(CPU).o
38ifdef SOC
39LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
40endif
41LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o
42LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
43
Daniel Schwierzeckefcc6092011-07-13 05:11:08 +000044LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/libcommon.o
45LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/libdisk.o
46LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/libi2c.o
47LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/libgpio.o
48LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/libmmc.o
49LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/libserial.o
50LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/libspi_flash.o
51LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/libspi.o
52LIBS-$(CONFIG_SPL_FAT_SUPPORT) += fs/fat/libfat.o
53LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
Simon Schwarz682b3a82011-09-14 15:30:54 -040054LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/libpower.o
Simon Schwarz12c2f1e2011-09-14 15:30:16 -040055LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o
Marek Vasut54cd51b2011-10-31 14:14:15 +010056LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/libonenand.o
Simon Schwarz3a0d60c2011-09-28 05:00:27 +000057LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/libdma.o
Heiko Schocher18e8ff12011-11-01 20:00:28 +000058LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/memory.o
Daniel Schwierzeckefcc6092011-07-13 05:11:08 +000059
Chandan Nath8a8f0842012-01-09 20:38:59 +000060ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP34XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),)
Sricharan508a58f2011-11-15 09:49:55 -050061LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
62endif
Daniel Schwierzeck525728b2011-07-13 05:11:09 +000063
Allen Martind9e73a82012-08-31 08:30:01 +000064ifeq ($(SOC),tegra20)
65LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o
66endif
67
Allen Martin660e98f2012-08-31 08:30:14 +000068# Add GCC lib
69ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
70PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o
71PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
72endif
73
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000074START := $(addprefix $(SPLTREE)/,$(START))
75LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
76
77__START := $(subst $(obj),,$(START))
78__LIBS := $(subst $(obj),,$(LIBS))
79
80# Linker Script
81ifdef CONFIG_SPL_LDSCRIPT
82# need to strip off double quotes
83LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
84endif
85
86ifeq ($(wildcard $(LDSCRIPT)),)
87 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
88endif
89ifeq ($(wildcard $(LDSCRIPT)),)
90 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
91endif
92ifeq ($(wildcard $(LDSCRIPT)),)
Simon Glassee601972011-11-21 10:49:37 +000093 LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
94endif
95ifeq ($(wildcard $(LDSCRIPT)),)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000096$(error could not find linker script)
97endif
98
99# Special flags for CPP when processing the linker script.
100# Pass the version down so we can handle backwards compatibility
101# on the fly.
102LDPPFLAGS += \
103 -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
104 -include $(OBJTREE)/include/config.h \
Simon Glass7e6403a2011-11-21 10:49:40 +0000105 -DCPUDIR=$(CPUDIR) \
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000106 $(shell $(LD) --version | \
107 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
108
John Rigby3decb142011-07-21 09:10:30 -0400109ifdef CONFIG_OMAP
110$(OBJTREE)/MLO: $(obj)u-boot-spl.bin
111 $(OBJTREE)/tools/mkimage -T omapimage \
112 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
113endif
Chandan Nath8a8f0842012-01-09 20:38:59 +0000114ifdef CONFIG_AM33XX
115$(OBJTREE)/MLO: $(obj)u-boot-spl.bin
116 $(OBJTREE)/tools/mkimage -T omapimage \
117 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
118endif
John Rigby3decb142011-07-21 09:10:30 -0400119
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000120ALL-y += $(obj)u-boot-spl.bin
121
Chander Kashyap98a48c52011-08-18 22:37:20 +0000122ifdef CONFIG_SAMSUNG
123ALL-y += $(obj)$(BOARD)-spl.bin
124endif
125
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000126all: $(ALL-y)
127
Chander Kashyap98a48c52011-08-18 22:37:20 +0000128ifdef CONFIG_SAMSUNG
129$(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
Angus Ainsliea2ee7f02011-09-12 10:11:58 +0000130 $(OBJTREE)/tools/mk$(BOARD)spl \
Chander Kashyap98a48c52011-08-18 22:37:20 +0000131 $(obj)u-boot-spl.bin $(obj)$(BOARD)-spl.bin
132endif
133
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000134$(obj)u-boot-spl.bin: $(obj)u-boot-spl
135 $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
136
137GEN_UBOOT = \
Tyler Olmsteadbe7e41e2012-08-08 16:24:13 +0000138 cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000139 --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
140 -Map u-boot-spl.map -o u-boot-spl
141
142$(obj)u-boot-spl: depend $(START) $(LIBS) $(obj)u-boot-spl.lds
143 $(GEN_UBOOT)
144
145$(START): depend
Marek Vasut08e4f702011-09-11 17:56:19 +0000146 $(MAKE) -C $(SRCTREE)/$(START_PATH) $@
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000147
148$(LIBS): depend
149 $(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
150
151$(obj)u-boot-spl.lds: $(LDSCRIPT) depend
152 $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - < $< > $@
153
154depend: $(obj).depend
155.PHONY: depend
156
157# defines $(obj).depend target
158include $(SRCTREE)/rules.mk