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* aes: Move the AES-128-CBC encryption function to common codeMarek Vasut2014-03-21-70/+2
| | | | | | | | | Move the AES-128-CBC encryption function implemented in tegra20-common/crypto.c into lib/aes.c . This is well re-usable common code. Moreover, clean the code up a bit and fix the kerneldoc-style annotations. Signed-off-by: Marek Vasut <marex@denx.de>
* sandbox: Add options to clean up temporary filesSimon Glass2014-03-17-11/+24
| | | | | | | | | | | | | | | When jumping from one sandbox U-Boot to another in sandbox, the RAM buffer is preserved in the jump by using a temporary file. Add an option to tell the receiving U-Boot to remove this file when it is no longer needed. Similarly the old U-Boot image is left behind in this case. We cannot delete it immediately since gdb cannot then find its debug symbols. Delete it just before exiting. Together these changes ensure that temporary files are removed both for memory and U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Allow Ctrl-C to work in sandboxSimon Glass2014-03-17-6/+59
| | | | | | | | | | | It is useful for Cltl-C to be handled by U-Boot as it is on other boards. But it is also useful to be able to terminate U-Boot with Ctrl-C. Add an option to enable signals while in raw mode, and make this the default. Add an option to leave the terminal cooked, which is useful for redirecting output. Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Add LCD driverSimon Glass2014-03-17-0/+13
| | | | | | | | | | | | | Add a simple LCD driver which uses SDL to display the image. We update the image regularly, while still providing for reasonable performance. Adjust the common lcd code to support sandbox. For command-line runs we do not want the LCD to be displayed, so add a --show_lcd option to enable it. Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Add a simple sound driverSimon Glass2014-03-17-0/+14
| | | | | | | Add a sound driver for sandbox, which uses SDL. Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Add SDL library for LCD, keyboard, audioSimon Glass2014-03-17-0/+467
| | | | | | | | | | | | | | | | | SDL (Simple DirectMedia Layer - see www.libsdl.org) is a library which provides simple graphics and sound features. It works under X11 and also with a simple frame buffer interface. It is ideally suited to sandbox U-Boot since it fits nicely with the low-level feature set required by U-Boot. For example, U-Boot has its own font drawing routines, its own keyboard processing and just needs raw sound output. We can use SDL to provide emulation of these basic functions for sandbox. This significantly expands the testing that is possible with sandbox. Add a basic SDL library which we will use in future commits. Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Add -j option to indicate a jump from a previous U-BootSimon Glass2014-03-17-1/+18
| | | | | | | | | | In order to support the 'go' command we allow the jumping U-Boot to pass its filename to the new U-Boot image. This can then be used to delete that image if required. Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Add os_jump_to_image() to run another executableSimon Glass2014-03-17-0/+89
| | | | | | | | For some tests it is useful to be able to run U-Boot again but pass on the same memory contents. Add a function to achieve this. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: dts: Add display and keyboard to sandboxSimon Glass2014-03-17-0/+96
| | | | | | | Add an LCD display and keyboard to the sandbox device tree so that these features can be used. Signed-off-by: Simon Glass <sjg@chromium.org>
* Use a const pointer for map_to_sysmem()Simon Glass2014-03-17-1/+1
| | | | | | | This function does not actually change the pointer contents, so use const so that functions which have a const pointer do not need to cast. Signed-off-by: Simon Glass <sjg@chromium.org>
* sh: fix PFC registers definition for SH772{2, 3, 4}Baruch Siach2014-03-14-6/+9
| | | | | | | Add missing port X data register, and fix the offset of ports Y and Z. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* kbuild: rename OBJTREE to objtreeMasahiro Yamada2014-03-12-4/+4
| | | | | | | | | | | Prior to Kbuild, $(OBJTREE) was used for pointing to the top of build directory with absolute path. In Kbuild style, $(objtree) is used instead. This commit renames OBJTREE to objtree and delete the defition of OBJTREE. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: rename TOPDIR to stctreeMasahiro Yamada2014-03-12-11/+11
| | | | | | | | | | | | Prior to Kbuild, $(TOPDIR) or $(SRCTREE) was used for pointing to the top of source directory. (No difference between the two.) In Kbuild style, $(srctree) is used instead. This commit renames TOPDIR to srctree and delete the defition of TOPDIR. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kirkwood: kwbimage: refactor CONFIG_SYS_KWD_CONFIGMasahiro Yamada2014-03-12-1/+1
| | | | | | | | | | | | | | | | | | Pull out "$(SRCTREE)/" from CONFIG_SYS_KWD_CONFIG and push it into the top Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Michael Walle <michael@walle.cc> Cc: Simon Guinot <simon.guinot@sequanux.org> Cc: Dave Purdy <david.c.purdy@gmail.com> Cc: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net> Cc: Luka Perkov <luka@openwrt.org> Cc: Valentin Longchamp <valentin.longchamp@keymile.com> Cc: Jason Cooper <u-boot@lakedaemon.net> Cc: Siddarth Gore <gores@marvell.com> Cc: Prafulla Wadaskar <prafulla@marvell.com> Cc: Eric Cooper <ecc@cmu.edu> Cc: Suriyan Ramasami <suriyan.r@gmail.com>
* kbuild: delete redundant LDSCRIPT definitionMasahiro Yamada2014-03-12-6/+0
| | | | | | | | | | | | | $(SRCTREE)/$(CPUDIR)/u-boot.lds is our default location of arch-specific linker script. Remove redundant definitions in arch/{arc,microblaze,openrisc}/config.mk. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Acked-by: Michal Simek <monstr@monstr.eu>
* x86: specify CONFIG_USE_PRIVATE_LIBGCC more simplyMasahiro Yamada2014-03-12-3/+1
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org>
* kbuild, x86: use a short log for arch/x86/lib/libgcc.aMasahiro Yamada2014-03-12-2/+3
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org>
* kbuild,mxs: use short logs for MXS imagesMasahiro Yamada2014-03-12-14/+15
| | | | | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Lauri Hintsala <lauri.hintsala@bluegiga.com> Acked-by: Marek Vasut <marex@denx.de>
* Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2014-03-10-9/+67
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| * arm: atmel: sama5d3: add nand spl boot supportBo Shen2014-03-09-0/+4
| | | | | | | | | | | | | | Add NAND SPL boot support with hardware PMECC. Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * arm: atmel: sama5d3: add spi spl boot supportBo Shen2014-03-09-0/+4
| | | | | | | | | | | | | | Add SPI SPL boot support for sama5d3xek board. Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * at91 gpio: fix typo in compatibility macroAndreas Henriksson2014-03-09-1/+1
| | | | | | | | | | | | | | | | | | | | It's called _pio_ in the version that was added to git. Apparently it got renamed without updating the macros before it was applied, c.f. http://u-boot.10912.n7.nabble.com/U-Boot-PATCH-3-9-V3-add-a-new-AT91-GPIO-driver-td75922.html Signed-off-by: Andreas Henriksson <andreas.henriksson@endian.se> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * at91sam9263ek: add mmc supportAndreas Henriksson2014-03-09-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for using the Atmel MCI driver on at91sam9263ek. This change is modeled after the existing at91sam9260ek support. Please note that this hooks up slot1 (MCI1) for SD. Not both. Tested with at91bootstrap and u-boot on dataflash in slot 0 and fat-formatted 8GB SDHC in slot 1 on first revision at91sam9263ek (which must use dataflash in slot0 to boot). CONFIG_ATMEL_MCI_PORTB not tested. Signed-off-by: Andreas Henriksson <andreas.henriksson@endian.se> [remove empty line] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * ARM: tegra: simplify halt_avp()Stephen Warren2014-03-05-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to completely halt the AVP processor, we should simply write FLOW_MODE_STOP without any extra options that allow wakeup. Amend the code to do this. I believe that enabling FIQ_1 and IRQ_1 allow the CPU to be awoken by interrupts. We don't want this; if later SW wishes to use the AVP, it should be reset and booted from scratch. Related, the bits that were previously IRQ_1 and FIQ_1 have a slightly different definition starting with Tegra114, so the values we're writing don't entirely make sense there anyway. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
| * ARM: tegra: fix NV_PA_CSITE_BASE for Tegra124Stephen Warren2014-03-05-0/+5
| | | | | | | | | | | | | | | | Tegra124 moved the CSITE block's base address. Fix U-Boot to use the correct address. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
| * ARM: tegra: fix pmc_pwrgate_timer_mult register definitionStephen Warren2014-03-05-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | Register pmc_pwrgate_timer_mult has a different layout on Tegra114 and Tegra124. Reflect this in pmc.h. Also, simply write the whole of the register in start_cpu() rather than doing a read-modify-write; the register is simple enough that the code can easily construct the entire desired value. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
| * ARM: tegra: move CONFIG_TEGRAnnStephen Warren2014-03-05-0/+8
| | | | | | | | | | | | | | | | | | | | <asm/arch-tegra/tegra.h> needs to use CONFIG_TEGRA* to conditionalize some definitions, since some modules moved between generations. Move the definition of CONFIG_TEGRAnn to a header that's included earlier, so that it's set by the time tegra.h needs to use it. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
| * ARM: AM43xx: Change DDR3 Reset ValueDave Gerlach2014-03-04-1/+1
| | | | | | | | | | | | | | | | | | The bit DDR3_RST_DEF_VAL inside CTRL_DDR_IO represents the default value of the ddr reset value for DDR3 before the EMIF takes over. We must have this bit set high so that on exit from DeepSleep0 within the kernel the reset line has the proper value. Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
| * ARM: AM43xx: Write sdram_config to secure_emif_sdram_configDave Gerlach2014-03-04-0/+1
| | | | | | | | | | | | | | | | | | The register secure_emif_sdram_config in control module is copied to the EMIF sdram_config register when it is coming out of DeepSleep0 in order to ensure that the EMIF comes up for the correct type of DDR. Without this, resume can hang from within the kernel. Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
| * ARM: AM43xx: EMIF: configure self-refresh entry delayDave Gerlach2014-03-04-2/+2
| | | | | | | | | | | | | | | | | | | | Per a suggestion from the hardware team, program the emif_pwr_mgmt_ctrl and emif_pwr_mgmt_ctrl_shdw registers within the EMIF to hold the desired delay in cycles that the EMIF waits without an access to enter self-refresh, in this case 8192 cycles. With this, code desiring to enter self refresh only has to toggle one bit to enable it. Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
| * ARM: AM43xx: clocks: Enable CPGMAC clock controlMugunthan V N2014-03-04-0/+1
| | | | | | | | | | | | Enable CPGMAC clock control for AM43xx to use ethernet in U-Boot Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
* | Merge branch 'master' of git://git.denx.de/u-boot-usbTom Rini2014-03-10-398/+6
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| * | usb: create common header virtual root hub descriptorsStephen Warren2014-03-10-398/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many USB host controller drivers contain almost identical copies of the same virtual root hub descriptors. Put these into a common file to avoid duplication. Note that there were some very minor differences between the descriptors in the various files, such as: - USB 1.0 vs. USB 1.1 - Manufacturer/Device ID - Max packet size - String content I assume these aren't relevant. Cc: Thomas Lange <thomas@corelatus.se> Cc: Shinya Kuribayashi <skuribay@pobox.com> Cc: Gary Jennejohn <garyj@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Eric Millbrandt <emillbrandt@coldhaus.com> Cc: Pierre Aubert <p.aubert@staubli.com> Cc: Stefan Roese <sr@denx.de> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Denis Peter <d.peter@mpl.ch> Cc: Rodolfo Giometti <giometti@linux.it> Cc: Zhang Wei <wei.zhang@freescale.com> Cc: Mateusz Zalega <m.zalega@samsung.com> Cc: Remy Bohmer <linux@bohmer.net> Cc: Markus Klotzbuecher <mk@denx.de> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Gary Jennejohn <garyj@denx.de> Cc: C Nauman <cnauman@diagraph.com> Cc: David Müller <d.mueller@elsoft.ch> Cc: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Cc: Thomas Abraham <t-abraham@ti.com> Cc: Tom Rini <trini@ti.com> Cc: Andrew Murray <amurray@embedded-bits.co.uk> Cc: Matej Frančeškin <matej.franceskin@comtrade.com> Cc: Cliff Cai <cliff.cai@analog.com> Cc: Bryan Wu <cooloney@gmail.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
* | | ahci-plat: Provide a weak scsi_init hookIan Campbell2014-03-10-0/+6
|/ / | | | | | | | | | | This allow the platform to register the platform ahci device. Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
* | Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxTom Rini2014-03-07-2/+216
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| * | powerpc/mpc85xx: Add SCFG_PIXCLKCR register support for T1040Priyanka Jain2014-03-07-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | T1040 SoC has SCFG (Supplement Configuration) Block which provides chip specific configuration and status support. The base address of SCFG block in T1040 is 0xfc000. SCFG contains SCFG_PIXCLKCR (DIU pixel clock control register) at offset 0x28. Add definition of -SCFG block -SCFG_PIXCLKCR register -Bits definition of SCFG_PIXCLK register Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
| * | bootstage: powerpc: support fdt stash and reportingMela Custodio2014-03-07-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | This implements stashing of bootstage timing data to FDT and automatic timing reporting. To enable define CONFIG_BOOTSTAGE_FDT and CONFIG_BOOTSTAGE_REPORT respectively. Signed-off-by: Rommel G Custodio <sessyargc+u-boot@gmail.com> Reviewed-by: York Sun <yorksun@freescale.com>
| * | powerpc/usb: Workaround for erratum-A006261Suresh Gupta2014-03-07-0/+107
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | USB spec says that the minimum disconnect threshold should be over 525 mV. However, internal USB PHY threshold value is below this specified value. Due to this some devices disconnect at run-time. Hence, phy settings are tweaked to increased disconnect threshold to be above 525mV by using this workaround. Signed-off-by: Suresh Gupta <suresh.gupta@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
| * | powerpc/b4860: Add workaround for errata A006384 and A006475Shaveta Leekha2014-03-07-2/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SerDes PLLs may not lock reliably at 5 G VCO configuration(A006384) and at cold temperatures(A006475), workaround recalibrate the PLLs with some SerDes configuration Both these errata are only applicable for b4 rev1. So, make workaround for these errata conditional, depending upon soc version. Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
| * | B4860/B4420: Add PLL_NUM define for B4420/B4860 to use SerDes2 Refclks ↵Shaveta Leekha2014-03-07-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | re-configuration B4860 has two PLL per SerDes whereas B4420 has one PLL per SerDes, add their defines in arch/powerpc/include/asm/config_mpc85xx.h Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
| * | 85xx/b4860: Alternate serdes protocols for B4860/B4420poonam aggrwal2014-03-07-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On B4860 and B4420, some serdes protocols can be used with LC VCO as well as Ring VCO options. Addded Alternate options with LC VCO for such protocols. For example protocol 0x2a on srds 1 becomes 0x29 if it is LC VCO. The alternate option has the same functionality as the original option; the only difference being LC VCO rather than Ring VCO. Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
| * | board/b4860qds: Add support to make PCIe SATA work on B4860QDSShaveta Leekha2014-03-07-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) SerDes2 Refclks have been set properly to make PCIe SATA to work as it work on SerDes refclk of 100MHz 2) Mask the SerDes's device reset request before changing the Refclks for SerDes1 and SerDes2 for PLL locks to happen properly, device reset request bit unmasked after SerDes refclks configuration Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
| * | board/b4860qds: Add support to make Aurora work on B4860QDSShaveta Leekha2014-03-07-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) Add new SerDes1 protocols having Aurora in them 2) Add VSC cross point connections for Aurora to work with CPRI and SGMIIs 3) Configure VSC crossbar switch to connect SerDes1 lanes to aurora on board, by checking SerDes1 protocols 4) SerDes1 Refclks have been set properly to make Aurora, CPRI and SGMIIs to work together properly Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* | | kbuild: move "checkgcc4" to PowerPC archprepareMasahiro Yamada2014-03-07-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "checkgcc4" is used only for PowerPC. Move it to arch/powerpc/config.mk. To make sure gcc is new enough before beginning build, run "checkgcc4" during "archprepare". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | | kbuild: move "checkthumb" to ARM archprepareMasahiro Yamada2014-03-07-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "checkthumb" makes sense only for ARM architecture. Move it to arch/arm/config.mk. To make sure gcc supports THUMB mode before beginning build, run "checkthumb" during "archprepare". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | | powerpc: mpc8260: consolidate CONFIG_MPC8260 and CONFIG_8260Masahiro Yamada2014-03-07-16/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this commit, CONFIG_MPC8260 and CONFIG_8260 were used mixed-up. All boards with mpc8260 cpu defined both of them: - CONFIG_MPC8260 was defined in board config headers and include/common.h - CONFIG_8260 was defined arch/powerpc/cpu/mpc8260/config.mk We do not need to have both of them. This commit keeps only CONFIG_MPC8260. This commit does: - Delete CONFIG_8260 and CONFIG_MPC8260 definition in config headers and include/common.h - Rename CONFIG_8260 to CONFIG_MPC8260 in arch/powerpc/cpu/mpc8260/config.mk. - Rename #ifdef CONFIG_8260 to #ifdef CONFIG_MPC8260 Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denk <wd@denx.de>
* | | mips: move CONFIG_MIPS{32, 64} definition to config.mkMasahiro Yamada2014-03-07-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All mips32 boards define CONFIG_MIPS32 in config headers except malta boards which define it in boards.cfg. We can consolidate them by defining it in arch/mips/cpu/mips32/config.mk. CONFIG_MIPS64 definition can be moved to arch/mips/cpu/mips64/config.mk as well. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Acked-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* | | kbuild: improve Kbuild speedMasahiro Yamada2014-03-07-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kbuild brought about many advantages for us but a significant performance regression was reported by Simon Glass. After some discussions and analysis, it turned out its main cause is in $(call cc-option,...). Historically, U-Boot parses all config.mk (arch/*/config.mk and board/*/config.mk) every time descending into subdirectories. That means cc-options are evaluated over and over again. $(call cc-option,...) is useful but costly. So we want to evaluate them only in ./Makefile and spl/Makefile and export compiler flags. This commit changes the build system as follows: - Modify scripts/Makefile.build to not include config.mk Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y, cppflags-y. - Export many variables Going forward, Kbuild will not parse config.mk files when it descends into subdirectories. If we want to set variables in config.mk and use them in subdirectories, they must be exported. This is the list of variables to get exported: PLATFORM_CPPFLAGS CPUDIR BOARDDIR OBJCOPYFLAGS LDFLAGS LDFLAGS_FINAL (used in nand_spl/board/*/*/Makefile) CONFIG_STANDALONE_LOAD_ADDR (used in examples/standalone/Makefile) SYM_PREFIX (used in examples/standalone/Makefile) RELFLAGS (used in examples/standalone/Makefile) - Delete CPPFLAGS This variable has been replaced with PLATFORM_CPPFLAGS - Copy gcclibdir from example/standalone/Makefile to arch/sparc/config.mk The reference in CONFIG_STANDALONE_LOAD_ADDR must be resolved before it is exported. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox] Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
* | | config.mk: specify the exact path to standalone linker scriptMasahiro Yamada2014-03-07-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We want to change the build system to include config.mk only from ./Makefile and spl/Makefile. We must prepare for that in this commit. $(src) is a moving target and not handy for our purpose. We must replace it with a fixed path. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | | kbuild: add CONFIG_ prefix to USE_PRIVATE_LIBGCCMasahiro Yamada2014-03-07-90/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this commit, USE_PRIVATE_LIBGCC was defined in arch-specific config.mk and referenced in arch/$(ARCH)/lib/Makefile. We are not happy about parsing config.mk again and again. We have to keep the same behavior with a different way. By adding "CONFIG_" prefix, this macro appears in include/autoconf.mk, include/spl-autoconf.mk. (And treating USE_PRIVATE_LIBGCC as CONFIG macro is reasonable enough.) Tegra SoC family defined USE_PRIVATE_LIBGCC as "yes" in arch/arm/cpu/arm720t/tegra*/config.mk, whereas did not define it in arch/arm/cpu/armv7/tegra*/config.mk. It means Tegra enables PRIVATE_LIBGCC only for SPL. We can describe the same behavior by adding #ifdef CONFIG_SPL_BUILD # define CONFIG_USE_PRIVATE_LIBGCC #endif to include/configs/tegra-common.h. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Warren <twarren@nvidia.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com>
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