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* lds: Add and use RO_DATA_SECTION macroSascha Hauer2019-10-141-12/+4
| | | | | | | | | We have many different pointer arrays which we put into linker sections and each time there's one added we have to adjust all linker scripts. This adds a common RO_DATA_SECTION define and uses it for all architectures. This makes it easier to add a new linker array. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lds: create and use BAREBOX_PCI_FIXUP macroSascha Hauer2019-10-141-13/+1
| | | | | | | No need to repeat the pci fixup sections in each linker script. Add a define for it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lds: Move start/end address variables into definesSascha Hauer2019-10-141-19/+2
| | | | | | | | | | | For the older section defines we specify the start and end addresses outside the macro which means we have to repeat them in each linker script. Make the start/end addresses part of the define to simplify things. While at it, add a BAREBOX_ prefix to the INITCALLS and EXITCALLS macros for consistency to the other defines. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sam Ravnborg <sam@ravnborg.org>
* barebox.lds: Remove unnecessary bracesSascha Hauer2019-10-141-2/+2
| | | | | | | The BAREBOX_CLK_TABLE and BAREBOX_DTB macros are defines that do not take a parameter, so we can remove the braces. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: relocation: add relocation supportOleksij Rempel2019-04-231-3/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | this patch i a port of following patch from u-boot with some additional integration changes and fixes of original code: | Subject: [PATCH] MIPS: Stop building position independent code | | U-Boot has up until now built with -fpic for the MIPS architecture, | producing position independent code which uses indirection through a | global offset table, making relocation fairly straightforward as it | simply involves patching up GOT entries. | | Using -fpic does however have some downsides. The biggest of these is | that generated code is bloated in various ways. For example, function | calls are indirected through the GOT & the t9 register: | | 8f998064 lw t9,-32668(gp) | 0320f809 jalr t9 | | Without -fpic the call is simply: | | 0f803f01 jal be00fc04 <puts> | | This is more compact & faster (due to the lack of the load & the | dependency the jump has on its result). It is also easier to read & | debug because the disassembly shows what function is being called, | rather than just an offset from gp which would then have to be looked up | in the ELF to discover the target function. | | Another disadvantage of -fpic is that each function begins with a | sequence to calculate the value of the gp register, for example: | | 3c1c0004 lui gp,0x4 | 279c3384 addiu gp,gp,13188 | 0399e021 addu gp,gp,t9 | | Without using -fpic this sequence no longer appears at the start of each | function, reducing code size considerably. | | This patch switches U-Boot from building with -fpic to building with | -fno-pic, in order to gain the benefits described above. The cost of | this is an extra step during the build process to extract relocation | data from the ELF & write it into a new .rel section in a compact | format, plus the added complexity of dealing with multiple types of | relocation rather than the single type that applied to the GOT. The | benefit is smaller, cleaner, more debuggable code. The relocate_code() | function is reimplemented in C to handle the new relocation scheme, | which also makes it easier to read & debug. | | Taking maltael_defconfig as an example the size of u-boot.bin built | using the Codescape MIPS 2016.05-06 toolchain (gcc 4.9.2, binutils | 2.24.90) shrinks from 254KiB to 224KiB. | | Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: migrate all files to SPDXOleksij Rempel2019-01-031-13/+1
| | | | | | Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Reviewed-by: Roland Hieber <r.hieber@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: fix PCI quirk infrastructure buildAntony Pavlov2018-09-171-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | The commit fc2c618c2038 ("pci: add quirk infrastructure") adds necessary ld-script changes only for ARM architecture. As a result, qemu-malta build fails: LD barebox drivers/built-in.o: In function `pci_fixup_device': (.text.pci_fixup_device+0x30): undefined reference to `__end_pci_fixups_enable' (.text.pci_fixup_device+0x38): undefined reference to `__end_pci_fixups_enable' (.text.pci_fixup_device+0x34): undefined reference to `__start_pci_fixups_enable' (.text.pci_fixup_device+0x3c): undefined reference to `__start_pci_fixups_enable' (.text.pci_fixup_device+0x70): undefined reference to `__end_pci_fixups_header' (.text.pci_fixup_device+0x78): undefined reference to `__end_pci_fixups_header' (.text.pci_fixup_device+0x74): undefined reference to `__start_pci_fixups_header' (.text.pci_fixup_device+0x80): undefined reference to `__start_pci_fixups_header' (.text.pci_fixup_device+0x2c): undefined reference to `__end_pci_fixups_early' (.text.pci_fixup_device+0x88): undefined reference to `__end_pci_fixups_early' (.text.pci_fixup_device+0x84): undefined reference to `__start_pci_fixups_early' (.text.pci_fixup_device+0x90): undefined reference to `__start_pci_fixups_early' make: *** [Makefile:767: barebox] Error 1 Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ratp: implement generic command supportAleksander Morgado2018-03-011-0/+4
| | | | | | | | | | | | | | | | | | | The RATP implementation now allows executing generic commands with a binary interface: binary requests are received and binary responses are returned. Each command can define its own RATP request contents (e.g. to specify command-specific options) as well as its own RATP response contents (if any data is to be returned). Each command is associated with a pair of numeric unique request and response IDs, and for easy reference these IDs are maintained in the common ratp_bb header. Modules may override generic implemented commands or include their own new ones (as long as the numeric IDs introduced are unique). Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: barebox.lds.S: put .text_entry contents after _stext and _textAntony Pavlov2017-05-081-1/+1
| | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: barebox.lds.S: remove unused gotAntony Pavlov2017-05-081-3/+0
| | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: barebox.lds.S: drop unneeded '_start = .'Antony Pavlov2017-05-081-1/+0
| | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* exitcall: Add exitcall infrastructureHerve Codina2015-07-131-0/+4
| | | | | | | | exitcall infrastructure is based on initcall infrastructure. It allows to have and use exit call hooks on barebox shutdown. Signed-off-by: Herve Codina <Herve.CODINA@celad.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: add support for metadata in barebox imagesAntony Pavlov2014-08-071-0/+2
| | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: lib: add BAREBOX_CLK_TABLE to linker scriptAntony Pavlov2014-03-281-0/+2
| | | | | | | | | | | | | | | This commit is based on commit fa1a406f7245c5482a17014d5b97e8948352e5a5 Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Date: Sat Nov 9 14:24:18 2013 +0100 ARM: lib: add BAREBOX_CLK_TABLE to linker script This adds an .oftables section right before .dtb section with BAREBOX_CLK_TABLE to ARM linker script. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: add initial device tree supportAntony Pavlov2013-05-131-0/+2
| | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> 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>
* Treewide: remove address of the Free Software FoundationSascha Hauer2012-09-171-3/+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>
* 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>
* Merge branch 'next'Sascha Hauer2011-12-071-0/+4
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| * 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>
* | MIPS: provide __bss_stop in linker scriptAntony Pavlov2011-12-071-1/+1
|/ | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* remove EARLY_INIT and EARLY_CONSOLE supportSascha Hauer2011-09-271-4/+0
| | | | | | Bitrotted over time and nearly unused, so remove it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* MIPS: add common MIPS stuffAntony Pavlov2011-08-051-0/+76
Add start.S, CP0 clocksource, Makefile, linker script and memory layout function. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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