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* dm: Add child_pre_probe() and child_post_remove() methodsSimon Glass2014-07-23-1/+67
| | | | | | | | | | | Some devices (particularly bus devices) must track their children, knowing when a new child is added so that it can be set up for communication on the bus. Add a child_pre_probe() method to provide this feature, and a corresponding child_post_remove() method. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Introduce per-child data for devicesSimon Glass2014-07-23-8/+17
| | | | | | | | | | | | | Some device types can have child devices and want to store information about them. For example a USB flash stick attached to a USB host controller would likely use this space. The controller can hold information about the USB state of each of its children. The data is stored attached to the child device in the 'parent_priv' member. It can be auto-allocated by dm when the child is probed. To do this, add a per_child_auto_alloc_size value to the parent driver. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Add functions to access a device's childrenSimon Glass2014-07-23-1/+2
| | | | | | | | | | | | | | | | | Devices can have childen that can be addressed by a simple index, the sequence number or a device tree offset. Add functions to access a child in each of these ways. The index is typically used as a fallback when the sequence number is not available. For example we may use a serial UART with sequence number 0 as the console, but if no UART has sequence number 0, then we can fall back to just using the first UART (index 0). The device tree offset function is useful for buses, where they want to locate one of their children. The device tree can be scanned to find the offset of each child, and that offset can then find the device. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Provide a function to scan child FDT nodesSimon Glass2014-07-23-1/+5
| | | | | | | | | | | | | | At present only root nodes in the device tree are scanned for devices. But some devices can have children. For example a SPI bus may have several children for each of its chip selects. Add a function which scans subnodes and binds devices for each one. This can be used for the root node scan also, so change it. A device can call this function in its bind() or probe() methods to bind its children. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Avoid accessing uclasses before they are readySimon Glass2014-07-23-1/+2
| | | | | | Don't allow access to uclasses before they have been initialised. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Allow a device to be found by its FDT offsetSimon Glass2014-07-23-1/+2
| | | | | | | | Each device that was bound from a device tree has an node that caused it to be bound. Add functions that find and return a device based on a device tree offset. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Introduce device sequence numberingSimon Glass2014-07-23-6/+95
| | | | | | | | | | | | | | | | | | | | | | | | | In U-Boot it is pretty common to number devices from 0 and access them on the command line using this numbering. While it may come to pass that we will move away from this numbering, the possibility seems remote at present. Given that devices within a uclass will have an implied numbering, it makes sense to build this into driver model as a core feature. The cost is fairly small in terms of code and data space. With each uclass having numbered devices we can ask for SPI port 0 or serial port 1 and receive a single device. Devices typically request a sequence number using aliases in the device tree. These are resolved when the device is probed, to deal with conflicts. Sequence numbers need not be sequential and holes are permitted. At present there is no support for sequence numbers using static platform data. It could easily be added to 'struct driver_info' if needed, but it seems better to add features as we find a use for them, and the use of -1 to mean 'no sequence' makes the default value somewhat painful. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Allow drivers to be marked 'before relocation'Simon Glass2014-07-23-12/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | Driver model currently only operates after relocation is complete. In this state U-Boot typically has a small amount of memory available. In adding support for driver model prior to relocation we must try to use as little memory as possible. In addition, on some machines the memory has not be inited and/or the CPU is not running at full speed or the data cache is off. These can reduce execution performance, so the less initialisation that is done before relocation the better. An immediately-obvious improvement is to only initialise drivers which are actually going to be used before relocation. On many boards the only such driver is a serial UART, so this provides a very large potential benefit. Allow drivers to mark themselves as 'pre-reloc' which means that they will be initialised prior to relocation. This can be done either with a driver flag or with a 'dm,pre-reloc' device tree property. To support this, the various dm scanning function now take a 'pre_reloc_only' parameter which indicates that only drivers marked pre-reloc should be bound. Signed-off-by: Simon Glass <sjg@chromium.org>
* doc: Add zynq fragment to git-mailrc fileMichal Simek2014-07-09-0/+1
| | | | | | | | | | This is a MIME GnuPG-signed message. If you see this text, it means that your E-mail or Usenet software does not support MIME signed messages. The Internet standard for MIME PGP messages, RFC 2015, was published in 1996. To open this message correctly you will need to install E-mail or Usenet software that supports modern Internet standards. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* Merge branch 'tom' of git://git.denx.de/u-boot-x86Tom Rini2014-07-07-1/+2
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| * cosmetic: doc: update README.generic-boardMasahiro Yamada2014-07-07-1/+2
| | | | | | | | | | | | | | | | Now MIPS supports 'generic board' feature. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
* | git-mailrc: Add sunxi custodians.Ian Campbell2014-07-07-0/+3
| | | | | | | | | | Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Hans de Goede <hdegoede@redhat.com>
* | mpc8xx: remove spc1920 board supportMasahiro Yamada2014-07-07-0/+1
| | | | | | | | | | | | This board is old enough and has no maintainer. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | mpc8xx: remove v37 board supportMasahiro Yamada2014-07-07-0/+1
| | | | | | | | | | | | This board is old enough and has no maintainer. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | mpc8xx: remove fads board supportMasahiro Yamada2014-07-07-0/+1
| | | | | | | | | | | | These boards are old enough and have no maintainers. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | mpc8xx: remove netta, netta2, netphone board supportMasahiro Yamada2014-07-07-0/+3
| | | | | | | | | | | | These boards are old enough and have no maintainers. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | mpc8xx: remove rbc823 board supportMasahiro Yamada2014-07-07-0/+1
| | | | | | | | | | | | This board is old enough and has no maintainer. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | mpc8xx: remove RPXlite_dw, quantum board supportMasahiro Yamada2014-07-07-0/+2
| | | | | | | | | | | | These boards are old enough and have no maintainers. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | mpc8xx: remove qs850, qs860t board supportMasahiro Yamada2014-07-07-1/+3
| | | | | | | | | | | | These boards are old enough and have no maintainers. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | doc/README.falcon: Clarify steps slightly.Tom Rini2014-07-07-3/+4
|/ | | | | | | | Make it clear that we need to load a legacy-formatted (aka uImage) kernel into memory as well as the DT if used before using "spl export". Cc: Yebio Mesfin <ymesfin@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
* arm: Add support for semihosting for armv8 fastmodel targets.Darwin Rambo2014-07-03-0/+54
| | | | | | | | | | | | | | | | | | | | | | The armv8 ARM Trusted Firmware (ATF) can be used to load various ATF images and u-boot, and does this for virtual platforms by using semihosting. This commit extends this idea by allowing u-boot to also use semihosting to load the kernel/ramdisk/dtb. This eliminates the need for a bootwrapper and produces a more realistic boot sequence with virtual models. Though the semihosting code is quite generic, support for armv7 in fastmodel is less useful due to the wide range of available silicon and the lack of a free armv7 fastmodel, so this change contains an untested armv7 placeholder for the service trap opcode. Please refer to doc/README.semihosting for a more detailed description of semihosting and how it is used with the armv8 virtual platforms. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Cc: trini@ti.com Cc: fenghua@phytium.com.cn Cc: bhupesh.sharma@freescale.com
* Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'Albert ARIBAUD2014-06-30-0/+26
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| * mx28evk: Add documentation on how to boot from SPI NORFabio Estevam2014-06-17-0/+26
| | | | | | | | | | | | | | | | | | Explain the necessary steps in order to boot from SPI NOR. Based on a earlier submission from Mårten Wikman. Signed-off-by: Mårten Wikman <marten.wikman@novia.fi> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* | dm: Expand and improve the device lifecycle docsSimon Glass2014-06-20-7/+213
| | | | | | | | | | | | | | | | | | The lifecycle of a device is an important part of driver model. Add to the existing documentation and clarify it. Reported-by: Jon Loeliger <jdl@jdl.com> Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: Rename struct device_id to udevice_idSimon Glass2014-06-20-1/+1
| | | | | | | | | | | | | | It is best to avoid having any occurence of 'struct device' in driver model, so rename to achieve this. Signed-off-by: Simon Glass <sjg@chromium.org>
* | Add documentation for verified boot on Beaglebone BlackSimon Glass2014-06-19-0/+608
| | | | | | | | | | | | | | | | As an example of an end-to-end process for using verified boot in U-Boot, add a detailed description of the steps to be used for a Beaglebone Black. Signed-off-by: Simon Glass <sjg@chromium.org>
* | Enhance fit_check_sign to check all imagesSimon Glass2014-06-19-0/+3
| | | | | | | | | | | | | | | | | | At present this tool only checks the configuration signing. Have it also look at each of the images in the configuration and confirm that they verify. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> (v1)
* | fdt: Rename the DEV_TREE_BIN Makefile flag to to EXT_DTBSimon Glass2014-06-19-2/+2
| | | | | | | | | | | | | | This seems like a better name. This is a patch-up to the earlier commit 63b4b5b, and also removes a redundant Makefile change. Signed-off-by: Simon Glass <sjg@chromium.org>
* | docs: driver-model: Fix spellingChris Packham2014-06-11-5/+5
| | | | | | | | Signed-off-by: Chris Packham <judge.packham@gmail.com>
* | fdt: Add DEV_TREE_BIN option to specify a device tree binary fileSimon Glass2014-06-11-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In some cases, an externally-built device tree binary is required to be attached to U-Boot. An example is when using image signing, since in that case the .dtb file must include the public keys. Add a DEV_TREE_BIN option to the Makefile, and update the documentation. Usage is something like: make DEV_TREE_BIN=boot/am335x-boneblack-pubkey.dtb Signed-off-by: Simon Glass <sjg@chromium.org>
* | Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2014-06-08-4/+203
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| * | am335x: update README for BCH16pekon gupta2014-06-06-0/+42
| | | | | | | | | | | | | | | | | | updates documentation with explanation on how to select ECC schemes. Signed-off-by: Pekon Gupta <pekon@ti.com>
| * | mtd: nand: omap: add CONFIG_SYS_NAND_BUSWIDTH_16BIT to indicate NAND device ↵pekon gupta2014-06-06-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bus-width GPMC controller needs to be configured based on bus-width of the NAND device connected to it. Also, dynamic detection of NAND bus-width from on-chip ONFI parameters is not possible in following situations: SPL: SPL NAND drivers does not support ONFI parameter reading. U-boot: GPMC controller iniitalization is done in omap_gpmc.c:board_nand_init() which is called before probing for devices, hence any ONFI parameter information is not available during GPMC initialization. Thus, OMAP NAND driver expected board developers to explicitely write GPMC configurations specific to NAND device attached on board in board files itself. But this was troublesome for board manufacturers as they need to dive into lengthy platform & SoC documents to find details of GPMC registers and appropriate configurations to get NAND device working. This patch instead adds existing CONFIG_SYS_NAND_BUSWIDTH_16BIT to board config hich indicates that connected NAND device has x16 bus-width. And then based on this config GPMC driver itself initializes itself based on NAND bus-width. This keeps board developers free from knowing GPMC controller specific internals. Signed-off-by: Pekon Gupta <pekon@ti.com>
| * | Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'Albert ARIBAUD2014-06-02-4/+143
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| | * | power: Add support for TPS65090 PMU chip.Tom Wai-Hong Tam2014-05-28-0/+139
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds driver support for the TPS65090 PMU. Support includes hooking into the pmic infrastructure so that the pmic commands can be used on the console. The TPS65090 supports the following functionality: - fet enable/disable/querying - getting and setting of charge state Even though it is connected to the pmic infrastructure it does not hook into the pmic charging charging infrastructure. The device tree binding is from Linux, but only a small subset of functionality is supported. Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org> Signed-off-by: Hatim Ali <hatim.rv@samsung.com> Signed-off-by: Katie Roberts-Hoffman <katierh@chromium.org> Signed-off-by: Rong Chang <rongchang@chromium.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| | * | ARM: dts: exynos: rename from EXYNOS5_DWMMC to EXYNOS_DWMMCJaehoon Chung2014-05-16-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Exynos serise can be supported the dw-mmc controller. So, it's good that used the general prefix as "_EXYNOS_DWMMC". Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* | | | nand_spl: remove simpc8313 supportMasahiro Yamada2014-06-05-10/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 3d5a335c announced that all the nand_spl boards would be removed before v2014.07 release. Also update README.scrapyard. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* | | | bootm: make use of legacy image format configurableHeiko Schocher2014-06-05-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | make the use of legacy image format configurable through the config define CONFIG_IMAGE_FORMAT_LEGACY. When relying on signed FIT images with required signature check the legacy image format should be disabled. Therefore introduce this new define and enable legacy image format if CONFIG_FIT_SIGNATURE is not set. If CONFIG_FIT_SIGNATURE is set disable per default the legacy image format. Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Lars Steubesand <lars.steubesand@philips.com> Cc: Mike Pearce <mike@kaew.be> Cc: Wolfgang Denk <wd@denx.de> Cc: Tom Rini <trini@ti.com> Cc: Michal Simek <monstr@monstr.eu> Acked-by: Simon Glass <sjg@chromium.org>
* | | | FDT: Fix DTC repository referencesJon Loeliger2014-06-05-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Device Tree Compiler (DTC) used to have its master repository located on jdl.com. While it is still there, its official, new, shiny location is on kernel.org here: git://git.kernel.org/pub/scm/utils/dtc/dtc.git Update a few references to point there instead. Signed-off-by: Jon Loeliger <jdl@jdl.com> Acked-by: Simon Glass <sjg@chromium.org>
* | | | powerpc: hiddendragon: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC82xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | powerpc: debris: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC82xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | powerpc: kvme080: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC82xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | powerpc: ep8248: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC82xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | powerpc: ispan: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC82xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | powerpc: rattler: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC82xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | powerpc: zpc1900: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC82xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | powerpc: mpc8260ads: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC82xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | powerpc: adder: remove orphan boardMasahiro Yamada2014-05-30-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This board has been orphan for a while. (Emails to its maintainer have been bouncing.) Because MPC8xx family is old enough, nobody would pick up the maintainership on it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denx <wd@denx.de>
* | | | PPC4xx: Remove quad100hd boardWolfgang Denk2014-05-30-9/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The quad100hd has been unmaintained and dead ever since it's been added some 6 years ago. Remove it. Also update README.scrapyard and insert some commit IDs for removed boards. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Gary Jennejohn <gljennjohn@googlemail.com>
* | | | Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2014-05-30-0/+21
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