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barebox/arch/mips/pbl/Makefile

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MIPS: add pre-bootloader (pbl) image support This patch is based on ARM pbl support and allows creating a pre-bootloader binary for compressed image. For different MIPS SoCs (or even for different boards based on the same SoC) the operations carried on in start-pbl.S can be very different. The additional constraints can be imposed on the size of the boot code or the special magic labels in the beginning of the boot code; In some cases it could be necessary to show CPU is alive as early as possible (transmit a char via UART or blink a LED). So the demands for pbl start operation can be very different. E.g. malta board store boot code at the NOR flash mapped to the MIPS power-on address (0xbfc00000); it is the most simple case: we need just copy pbl image from direct-mapped flash to RAM and jump there. The XBurst-powered boards store boot code in the beginning of a NAND flash or in the beginning of SD/MMC card. In this case we must use simple and short NAND or SD/MMC access routines to copy pbl image to RAM. To meet so different demands a simple technique is selected: * MIPS pbl entry point located in file arch/mips/boot/start-pbl.S. * MIPS pbl code (see start-pbl.S) assumes that every pbl-enabled board has a arch/mips/boards/<BOARD>/include/board/board_pbl_start.h header file. This file must contain definition of the board_pbl_start macro. This macro is used as start of pbl image; * the most popular asm routines (stack setup, relocation to link address, NS16550 initialization (WIP) and so on) are containt in the arch/mips/include/asm/pbl_macros.h header file. So board pbl macro can use it if necessary. It is possible to create similar headers with macros for each specific SoC; so even if we have many different boards based on the same SoC the board_pbl_start macro for every board can be short and clear. * after board-specific initialization the stack pointer is initialized and pbl C code is started. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-12-12 19:24:46 +00:00
suffix_$(CONFIG_IMAGE_COMPRESSION_GZIP) = gzip
suffix_$(CONFIG_IMAGE_COMPRESSION_LZO) = lzo
pbl: add lz4 support Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-07-15 10:20:53 +00:00
suffix_$(CONFIG_IMAGE_COMPRESSION_LZ4) = lz4
pbl: add none compression support Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-01-28 09:26:12 +00:00
suffix_$(CONFIG_IMAGE_COMPRESSION_NONE) = shipped
MIPS: add pre-bootloader (pbl) image support This patch is based on ARM pbl support and allows creating a pre-bootloader binary for compressed image. For different MIPS SoCs (or even for different boards based on the same SoC) the operations carried on in start-pbl.S can be very different. The additional constraints can be imposed on the size of the boot code or the special magic labels in the beginning of the boot code; In some cases it could be necessary to show CPU is alive as early as possible (transmit a char via UART or blink a LED). So the demands for pbl start operation can be very different. E.g. malta board store boot code at the NOR flash mapped to the MIPS power-on address (0xbfc00000); it is the most simple case: we need just copy pbl image from direct-mapped flash to RAM and jump there. The XBurst-powered boards store boot code in the beginning of a NAND flash or in the beginning of SD/MMC card. In this case we must use simple and short NAND or SD/MMC access routines to copy pbl image to RAM. To meet so different demands a simple technique is selected: * MIPS pbl entry point located in file arch/mips/boot/start-pbl.S. * MIPS pbl code (see start-pbl.S) assumes that every pbl-enabled board has a arch/mips/boards/<BOARD>/include/board/board_pbl_start.h header file. This file must contain definition of the board_pbl_start macro. This macro is used as start of pbl image; * the most popular asm routines (stack setup, relocation to link address, NS16550 initialization (WIP) and so on) are containt in the arch/mips/include/asm/pbl_macros.h header file. So board pbl macro can use it if necessary. It is possible to create similar headers with macros for each specific SoC; so even if we have many different boards based on the same SoC the board_pbl_start macro for every board can be short and clear. * after board-specific initialization the stack pointer is initialized and pbl C code is started. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-12-12 19:24:46 +00:00
OBJCOPYFLAGS_zbarebox.bin = -O binary
piggy_o := piggy.$(suffix_y).o
targets := zbarebox.lds zbarebox zbarebox.bin zbarebox.S \
$(piggy_o) piggy.$(suffix_y)
# Make sure files are removed during clean
pbl: add lz4 support Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-07-15 10:20:53 +00:00
extra-y += piggy.gzip piggy.lz4 piggy.lzo piggy.lzma piggy.xzkern piggy.shipped zbarebox.map
MIPS: add pre-bootloader (pbl) image support This patch is based on ARM pbl support and allows creating a pre-bootloader binary for compressed image. For different MIPS SoCs (or even for different boards based on the same SoC) the operations carried on in start-pbl.S can be very different. The additional constraints can be imposed on the size of the boot code or the special magic labels in the beginning of the boot code; In some cases it could be necessary to show CPU is alive as early as possible (transmit a char via UART or blink a LED). So the demands for pbl start operation can be very different. E.g. malta board store boot code at the NOR flash mapped to the MIPS power-on address (0xbfc00000); it is the most simple case: we need just copy pbl image from direct-mapped flash to RAM and jump there. The XBurst-powered boards store boot code in the beginning of a NAND flash or in the beginning of SD/MMC card. In this case we must use simple and short NAND or SD/MMC access routines to copy pbl image to RAM. To meet so different demands a simple technique is selected: * MIPS pbl entry point located in file arch/mips/boot/start-pbl.S. * MIPS pbl code (see start-pbl.S) assumes that every pbl-enabled board has a arch/mips/boards/<BOARD>/include/board/board_pbl_start.h header file. This file must contain definition of the board_pbl_start macro. This macro is used as start of pbl image; * the most popular asm routines (stack setup, relocation to link address, NS16550 initialization (WIP) and so on) are containt in the arch/mips/include/asm/pbl_macros.h header file. So board pbl macro can use it if necessary. It is possible to create similar headers with macros for each specific SoC; so even if we have many different boards based on the same SoC the board_pbl_start macro for every board can be short and clear. * after board-specific initialization the stack pointer is initialized and pbl C code is started. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-12-12 19:24:46 +00:00
$(obj)/zbarebox.bin: $(obj)/zbarebox FORCE
$(call if_changed,objcopy)
$(call cmd,check_file_size,$(CONFIG_BAREBOX_MAX_IMAGE_SIZE))
$(Q)$(kecho) ' Barebox: $@ is ready'
$(obj)/zbarebox.S: $(obj)/zbarebox FORCE
$(call if_changed,disasm)
PBL_CPPFLAGS += -fdata-sections -ffunction-sections
LDFLAGS_zbarebox := -Map $(obj)/zbarebox.map
LDFLAGS_zbarebox += -static --gc-sections
zbarebox-common := $(barebox-pbl-common) $(obj)/$(piggy_o)
zbarebox-lds := $(obj)/zbarebox.lds
quiet_cmd_zbarebox__ ?= LD $@
cmd_zbarebox__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_zbarebox) -o $@ \
-T $(zbarebox-lds) \
--start-group $(zbarebox-common) --end-group \
$(filter-out $(zbarebox-lds) $(zbarebox-common) FORCE ,$^)
$(obj)/zbarebox: $(zbarebox-lds) $(zbarebox-common) FORCE
$(call if_changed,zbarebox__)
$(obj)/piggy.$(suffix_y): $(obj)/../../../barebox.bin FORCE
$(call if_changed,$(suffix_y))
$(obj)/$(piggy_o): $(obj)/piggy.$(suffix_y) FORCE