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* Add support for metadata in barebox imagesSascha Hauer2014-08-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's often useful to get some information about a barebox image before starting or flashing it. This patch introduces barebox Image MetaData (IMD). When enabled a barebox image will contain a list of tags containing the desired information. We have tags for: - the barebox release (2014.07.0-00160-g035de50-dirty) - the build timestamp (#741 Mon Jul 28 15:08:54 CEST 2014) - the board model the image is intended for - the device tree toplevel compatible property Also there is an additional generic key-value store which stores parameters for which no dedicated tag exists. In this patch it is used for the memory size an image supports. Since there is no fixed offset in a barebox image which can be used for storing the information, the metadata is stored somewhere in the image and found by iterating over the image. This works for most image types, but obviously not for SoC images which are encoded or encrypted in some way. There is a 'imd' tool compiled from the same sources for barebox, for the compile host and for the target, so the metadata information is available whereever needed. For device tree boards the model and of_compatible tags are automatically generated. Example output of the imd tool for a Phytec phyFLEX image: build: #889 Wed Jul 30 16:08:54 CEST 2014 release: 2014.07.0-00167-g6b2070d-dirty parameter: memsize=1024 of_compatible: phytec,imx6x-pbab01 phytec,imx6dl-pfla02 fsl,imx6dl model: Phytec phyFLEX-i.MX6 Duallite Carrier-Board Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: lib: add BAREBOX_CLK_TABLE to linker scriptSebastian Hesselbarth2013-11-111-0/+2
| | | | | | | | This adds an .oftables section right before .dtb section with BAREBOX_CLK_TABLE to ARM linker script. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/relocate'Sascha Hauer2013-04-041-0/+17
|\ | | | | | | | | Conflicts: arch/arm/lib/barebox.lds.S
| * ARM: Add relocatable binary supportSascha Hauer2013-03-071-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For making the same binary executable on different SoCs which have different DRAM addresses we have to be independent of the compile time link address. This patch adds relocatable binary support for the ARM architecture. With this two new functions are available. relocate_to_current_adr will fixup the binary to continue executing from the current position. relocate_to_adr will copy the binary to a given address, fixup the binary and continue executing from there. For the PBL and the real image relocatable support can be enabled independently. This is done to (hopefully) better cope with setups where the PBL runs from SRAM or ROM and the real binary does not. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM: Initial dts supportSascha Hauer2013-03-121-0/+2
|/ | | | | | | | - Add rules to generate dtb files in arch/arm/dts/ - add an initcall which unflattens and probes the internal devicetree - Add skeleton devicetree Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* barebox-data: add barebox-data sectionsAlexander Aring2013-01-181-0/+2
| | | | | | | | Add barebox-data section in arm branch to get complete barebox regions in sdram regions tree. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/remove-fsf-address'Sascha Hauer2012-10-031-4/+0
|\ | | | | | | | | | | Conflicts: drivers/net/miidev.c include/miidev.h
| * Treewide: remove address of the Free Software FoundationSascha Hauer2012-09-171-4/+0
| | | | | | | | | | | | | | The FSF address has changed in the past. Instead of updating it each time the address changes, just drop it completely treewide. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM lowlevel: Use get_runtime_offsetSascha Hauer2012-09-091-2/+0
|/ | | | | | | | The current approach to get the offset between link and runtime address is fragile. It requires a big fat comment to put no code above it and it requires an extra linker section. Instead use a small assembler function. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add pre-bootloader (pbl) image supportJean-Christophe PLAGNIOL-VILLARD2012-08-031-1/+2
| | | | | | | | | | | | | | | | | | | | | This allows for creating a pre-bootloader binary for - nand boot - mmc boot - compressed image The pbl will be incharge of the lowlevel init if needed. The barebox will skip it. Import string functions from linux 3.4 (arch/arm/boot/compressed/string.c) and implement a dummy panic. For now on introduce dummy zbarebox* targets and c code that will contain later the decompressor. This only implemeted on ARM. This patch is based on Sascha Hauer <s.hauer@pengutronix.de> Add compressed image support patch Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* ARM ep93xx: Get rid of special handling in linker fileSascha Hauer2012-07-231-5/+0
| | | | | | | | The ep93xx needs a special value at offset 0x1000. Rather than do special handling in the linker file add aa header section as done on i.MX. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM lds: remove unused gotSascha Hauer2012-07-231-3/+0
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM linker script: Fix barebox_image_sizeSascha Hauer2012-03-231-1/+1
| | | | | | | | barebox_image_size was calculated wrong when PRE_IMAGE is defined. In this case _text does not refer to the binary image start. We have to use TEXT_BASE here. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: get runtime offset of board_init_lowlevel_return by using separate sectionSascha Hauer2012-02-281-0/+2
| | | | | | | | We used to get the runtime offset of the board_init_lowlevel_return by doing a &board_init_lowlevel_return. This does not work in thumb-2 mode, so use a separate linker section for this function instead. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: move exception vectors away from start of binarySascha Hauer2012-02-281-1/+4
| | | | | | | | | | | | | | | | Traditionally U-Boot and barebox have the exception vectors at the start of the binary. There is no real reason in doing so, because in the majority of cases this data will not be at 0x0 where it could be used as vectors directly anyway. This patch puts the vectors into a separate linker section and defines an head function which is placed at the start of the image instead. Putting this in a separate function also has the advantage that it can be placed at the start of images which require an additional header like several Freescale i.MX images. As the head function contains the barebox arm magic those images can now also be detected as barebox images. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* introduce barebox_bare_init_size to known the bare_init size and check itJean-Christophe PLAGNIOL-VILLARD2012-01-231-0/+3
| | | | | | | | | | | this allow to check we do not exceed the size of the SRAM as example introduce BAREBOX_MAX_BARE_INIT_SIZE the maximum size of bare_init this will allow your bare_init will fit in SRAM as example ARCH can overwrite it via ARCH_BAREBOX_MAX_BARE_INIT_SIZE Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* add magicvar commandSascha Hauer2011-11-291-0/+4
| | | | | | | The magicvar command gives an overview about all environment variables with a special meaning. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: compile in image size and magic into barebox imageSascha Hauer2011-05-061-0/+1
| | | | | | | | This is useful to detect a barebox image and to be able to copy only the image size if barebox is stored on raw partitions which are bigger than the image. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: Add stack unwinding supportSascha Hauer2011-03-101-0/+16
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: provide __bss_stop in linker scriptSascha Hauer2011-01-171-0/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* arm: reimplement startup code in CSascha Hauer2010-05-031-1/+1
| | | | | | | Lets translate the startup code to a language we all understand better. Tested on pcm038 (arm v5) and pcm043 (arm v6). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: Add support for EP93xx SoCsMatthias Kaehlcke2010-01-141-0/+5
| | | | | | | Add support for the Cirrus Logic EP93xx platform Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* rename U-Boot-v2 project to bareboxSascha Hauer2009-12-151-0/+74
This has been done with the following script: find -path ./.git -prune -o -type f -print0 | xargs -0 -r sed -i \ -e 's/u2boot/barebox/g' \ -e 's/U2Boot/barebox/g' \ -e 's/U-boot V2/barebox/g' \ -e 's/u-boot v2/barebox/g' \ -e 's/U-Boot V2/barebox/g' \ -e 's/U-Boot-v2/barebox/g' \ -e 's/U_BOOT/BAREBOX/g' \ -e 's/UBOOT/BAREBOX/g' \ -e 's/uboot/barebox/g' \ -e 's/u-boot/barebox/g' \ -e 's/u_boot/barebox/g' \ -e 's/U-Boot/barebox/g' \ -e 's/U-boot/barebox/g' \ -e 's/U-BOOT/barebox/g' find -path ./.git -prune -o \( -name "*u-boot*" -o -name "*uboot*" -o -name "*u_boot*" \) -print0 | \ xargs -0 -r rename 's/u[-_]?boot/barebox/' It needs some manual fixup following in the next patch Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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