summaryrefslogtreecommitdiff
path: root/doc
Commit message (Collapse)AuthorAgeLines
* dm: video: Add support for the Parade PS8622/625 bridgeSimon Glass2015-08-05-0/+33
| | | | | | | | This chip provides an eDP to LVDS bridge which is useful for SoCs that don't support LVDS displays (or it would waste scarce pins). The setup is included in the device tree. Signed-off-by: Simon Glass <sjg@chromium.org>
* i2c: Add a mux for GPIO-based I2C bus arbitrationSimon Glass2015-08-05-0/+60
| | | | | | | | | | | | | | | | | | | | | | | | While I2C supports multi-master buses this is difficult to get right. The implementation on the master side in software is quite complex. Clock-stretching and the arbitrary time that an I2C transaction can take make it difficult to share the bus fairly in the face of high traffic. When one or more masters can be reset independently part-way through a transaction it is hard to know the state of the bus. This driver provides a scheme based on two 'claim' GPIOs, one driven by the AP (Application Processor, meaning the main CPU) and one driven by the EC (Embedded Controller, a small CPU aimed at handling system tasks). With these they can communicate and reliably share the bus. This scheme has minimal overhead and involves very little code. It is used on snow to permit the EC and the AP to share access to the main system PMIC and battery. The scheme can survive reboots by either side without difficulty. This scheme has been tested in the field with millions of devices. Since U-Boot runs on the AP, the terminology used is 'our' claim GPIO, meaning the AP's, and 'their' claim GPIO, meaning the EC's. This terminology is used by the device tree bindings in Linux also. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: i2c: Add support for multiplexed I2C busesSimon Glass2015-08-05-0/+60
| | | | | | | | | | | | | | | | | Add a new I2C_MUX uclass. Devices in this class can multiplex between several I2C buses, selecting them one at a time for use by the system. The multiplexing mechanism is left to the driver to decide - it may be controlled by GPIOs, for example. The uclass supports only two methods: select() and deselect(). The current mux state is expected to be stored in the mux itself since it is the only thing that knows how to make things work. The mux can record the current state and then avoid switching unless it is necessary. So select() can be skipped if the mux is already in the correct state. Also deselect() can be made a nop if required. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Document how to write PIRQ information in the device treeBin Meng2015-08-05-0/+41
| | | | | | | | Document the development flow on figuring out PIRQ information during the U-Boot porting. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* efi: Add a README to explain how things workSimon Glass2015-08-05-0/+237
| | | | | | | | Add some documentation on the EFI implementation in U-Boot. Signed-off-by: Ben Stoltz <stoltz@google.com> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Update README to explain booting Ubuntu on MinnowmaxSimon Glass2015-08-05-0/+278
| | | | | | | | | | | | | | | | The steps required to boot a Linux distribution from U-Boot on x86 are not very complicated, but it is a good idea to have these written down in an accessible place. Document how to examine the boot media from U-Boot, how to load a kernel, load a ramdisk, set the kernel boot arguments and start the kernel. With these instructions Ubuntu boots mostly normally on Minnowmax. Note that the TSC timer does not operate correctly and gives warnings in the boot log. I expect that ACPI support will solve this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: dts: Fix typo in intel,irq-router.txtSimon Glass2015-08-05-2/+2
| | | | | | | Fix a small typo in this binding file. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: qemu: Add MP initializationBin Meng2015-08-05-0/+5
| | | | | | | | | Add a cpu1 node to the device tree and enable the MP initialization on QEMU targets (i440fx and q35). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* doc: dm: Update pci-info.txt for pci supportBin Meng2015-08-05-3/+3
| | | | | | | Correct two typos and mention how pci bus will be probed. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxTom Rini2015-07-31-1/+1
|\
| * powerpc/b4860qds: Update README for DIP switch informationRaghav Dogra2015-07-28-1/+1
| | | | | | | | | | | | | | | | The board manual desribes ON as boolean 1 and OFF as boolean 0. Updating README with correct boolean values. Signed-off-by: Raghav Dogra <raghav@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* | spi: Fix zynq SPI bindingMichal Simek2015-07-28-16/+19
|/ | | | | | | | Zynq is using Cadence IP where binding is documented in the Linux kernel and there is no reason to use different binding. Synchronize it. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* Merge git://git.denx.de/u-boot-usbTom Rini2015-07-24-5/+5
|\
| * usb: CONFIG_USB_FASTBOOT prefix replacement for consistencyPaul Kocialkowski2015-07-22-2/+2
| | | | | | | | | | | | | | | | | | | | FASTBOOT is defined both by CONFIG_USB_FUNCTION_FASTBOOT AND CONFIG_CMD_FASTBOOT, so it doesn't make much sense to have a CONFIG_USB_FASTBOOT prefix for fastboot-specific options, especially given that other config options for fastboot use the CONFIG_FASTBOOT prefix. This replaces the CONFIG_USB_FASTBOOT prefix with CONFIG_FASTBOOT, for consistency. Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
| * usb: Fastboot function config for better consistency with other functionsPaul Kocialkowski2015-07-22-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | USB download gadget functions such as thor and dfu have a separate config option for the USB gadget part of the code, independent from the command part. This switches the fastboot USB gadget to the same scheme, for better consistency. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Tested-by: Lukasz Majewski <l.majewski@samsung.com> Test HW: Odroid_XU3 (Exynos5422), trats (Exynos4210)
| * usb: USB download gadget and functions config options coherent namingPaul Kocialkowski2015-07-22-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | This introduces a coherent scheme for naming USB download gadget and functions config options. The download USB gadget config option is moved to CONFIG_USB_GADGET_DOWNLOAD for better consistency with other gadgets and each function's config option is moved to a CONFIG_USB_FUNCTION_ prefix. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Tested-by: Lukasz Majewski <l.majewski@samsung.com> Test HW: Odroid_XU3 (Exynos5422), trats (Exynos4210)
* | Merge git://git.denx.de/u-boot-uniphierTom Rini2015-07-23-4/+50
|\ \
| * | ARM: UniPhier: document reference support cardMasahiro Yamada2015-07-23-2/+44
| | | | | | | | | | | | Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * | ARM: UniPhier: add PH1-sLD3 SoC supportMasahiro Yamada2015-07-23-2/+6
| |/ | | | | | | | | | | | | The init code for UMC (Unified Memory Controller) and PLL has not been mainlined yet, but U-boot proper should work. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* | dm: Add platform data advice and admonishmentSimon Glass2015-07-21-2/+15
| | | | | | | | | | | | | | | | We should guide people more strongly towards device tree to avoid the proliferation of platform data structures. Add documentation to the driver model README, and also the platform data header file. Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: led: Add a driver for GPIO-controlled LEDsSimon Glass2015-07-21-0/+52
| | | | | | | | | | | | | | Add a simple driver which allows use of LEDs attached to GPIOs. The linux device tree binding is used. Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: Add support for LEDsSimon Glass2015-07-21-0/+23
|/ | | | | | | | | Add a simple uclass for LEDs, so that these can be controlled by the device tree and activated when needed. LEDs are referred to by their label. This implementation requires a driver for each type of LED (e.g GPIO, I2C). Signed-off-by: Simon Glass <sjg@chromium.org>
* Merge git://git.denx.de/u-boot-x86Tom Rini2015-07-15-3/+47
|\
| * x86: Add binary blob checksums for Minnowboard MAXSimon Glass2015-07-14-0/+8
| | | | | | | | | | | | | | | | | | | | To try to reduce the pain of confusion of binary blobs, add MD5 checksums for the current versions. This may worsen the situation as new versions appear, but it should still be possible to obtain these versions, and thus get a working setup. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
| * x86: Add ROM image description for minnowmaxSimon Glass2015-07-14-0/+17
| | | | | | | | | | | | | | | | The layout of the ROM is a bit hard to discover by reading the code. Add a table to make it easier. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
| * x86: crownbay: Enable graphics supportBin Meng2015-07-14-7/+13
| | | | | | | | | | | | | | | | | | | | | | Enable graphics support on Intel Crown Bay board With the help of vgabios for Intel TunnelCreek IGD. Tested with an external LVDS panel connected to X4 connector and SDVO adapter connected to X9 connector on the board. Signed-off-by: Jian Luo <jian.luo4@boschrexroth.de> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
| * x86: Move VGA option rom macros to KconfigBin Meng2015-07-14-1/+1
| | | | | | | | | | | | | | | | | | | | Move X86_OPTION_ROM_FILE & X86_OPTION_ROM_ADDR to arch/x86/Kconfig and rename them to VGA_BIOS_FILE & VGA_BIOS_ADDR which depend on HAVE_VGA_BIOS. The new names are consistent with other x86 binary blob options like HAVE_FSP/FSP_FILE/FSP_ADDR. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
| * x86: Update README.x86 for SMP supportBin Meng2015-07-14-0/+13
| | | | | | | | | | | | | | | | Document U-Boot multi-processor support as well as configuration tables like SFI and MP tables for SMP OS kernel. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* | Merge branch 'master' of git://git.denx.de/u-boot-spiTom Rini2015-07-14-0/+28
|\ \ | |/ |/|
| * spi: cadence_qspi: add device tree binding docVikas Manocha2015-07-03-0/+28
| | | | | | | | | | | | | | | | This patch adds the device tree binding doc for the cadence qspi controller & also removes the not needed properties from the stv0991 device tree. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
* | README.distro: fix typosMasahiro Yamada2015-07-08-6/+6
|/ | | | | | | | | | The word "partition" is doubled. Keep decent forms for the following lines. Also, fix some other typos while we are here. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Stephen Warren <swarren@nvidia.com>
* spi: zynq_spi: Add fdt support in driverJagan Teki2015-07-01-0/+2
| | | | | | | | | | | | | | | | | Now zynq spi driver platform data is controlled by devicetree, enable the status by saying "okay" on respective board dts to use the devicetree generated platdata. Ex: &spi1 { status = "okay"; }; Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com>
* dts: zynq: Add zynq spi controller nodesJagan Teki2015-07-01-0/+27
| | | | | | | | | | This patch adds zynq spi controller nodes in zynq-7000.dtsi. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com>
* README.scrapyard: add entries for dead AVR32 boardsMasahiro Yamada2015-06-11-0/+6
| | | | | | | | | | | Some AVR32 boards were dropped by the following commits: 9eb45aabe078 (avr32: delete non generic board favr-32-ezkit) e36930764471 (avr32: delete non generic board hammerhead) c62d2f8fc5c6 (avr32: delete non generic board mimc200) e5354b8a9e2a (avr32: delete non generic board's atstk100{3, 4, 6}) Acked-by: Andreas Bießmann <andreas.devel@googlemail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* autoboot.c: Remove CONFIG_AUTOBOOT_STOP_STR2 and CONFIG_AUTOBOOT_DELAY_STR2Stefan Roese2015-06-08-10/+0
| | | | | | | | | | | | | | | These defines for a 2nd autoboot stop and delay string are nearly unused. Only sc3 defines CONFIG_AUTOBOOT_DELAY_STR2. And a patch to remove this most likely unmaintained board is also posted to the list. By removing these defines the code will become cleaner and moving the remaining compile options to Kconfig will get easier. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Wolfgang Denk <wd@denx.de> Cc: Heiko Schocher <hs@denx.de>
* Merge git://git.denx.de/u-boot-fdtTom Rini2015-06-05-0/+4
|\
| * fdt: Pass the device serial number through devicetreePaul Kocialkowski2015-06-05-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before device-tree, the device serial number used to be passed to the kernel using ATAGs (on ARM). This is now deprecated and all the handover to the kernel should now be done using device-tree. Thus, this passes the serial-number property to the kernel using the serial-number property of the root node, as expected by the kernel. The serial number is a string that somewhat represents the device's serial number. It might come from some form of storage (e.g. an eeprom) and be programmed at factory-time by the manufacturer or come from identification bits available in e.g. the SoC. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Reviewed-by: Simon Glass <sgj@chromium.org>
* | x86: gpio: add pinctrl support from the device treeGabriel Huau2015-06-04-0/+31
| | | | | | | | | | | | | | | | | | Every pin can be configured now from the device tree. A dt-bindings has been added to describe the different property available. Change-Id: I1668886062655f83700d0e7bbbe3ad09b19ee975 Signed-off-by: Gabriel Huau <contact@huau-gabriel.fr> Acked-by: Simon Glass <sjg@chromium.org>
* | x86: qemu: Create separate i440fx and q35 device treesBin Meng2015-06-04-1/+9
| | | | | | | | | | | | | | | | | | | | Although the two qemu-x86 targets (i440fx and q35) share a lot in common, they still have something that cannot easily handled in one single device tree). Split to create two dedicated device tree files and make the i440fx be the default build target. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* | x86: Document irq router device tree bindingsBin Meng2015-06-04-0/+50
| | | | | | | | | | | | | | Describe all required properties needed by the irq router device tree. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* | x86: qemu: Add graphics supportBin Meng2015-06-04-1/+6
| | | | | | | | | | | | | | | | It turns out that QEMU x86 emulated graphic card has a built-in option ROM which can be run perfectly with native mode by U-Boot. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* | x86: Update README.x86 for QEMU supportBin Meng2015-06-04-17/+48
|/ | | | | | | Document how to build and test U-Boot with QEMU. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* mkimage will now report information about loadableKarl Apsite2015-05-28-0/+93
| | | | | | | | | | | | Added FIT_LOADABLE_PROP, so the user can identify an optional entry named "loadables" in their .its configuration. "loadables" is a comma separated list in the .its Documentation can be found in doc/uImage.FIT/source_file_format.txt and doc/uImage.Fit/multi-with-loadables.its Signed-off-by: Karl Apsite <Karl.Apsite@dornerworks.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* doc/README.generic-board: Trivial spell checkRicardo Ribalda2015-05-27-4/+4
| | | | Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
* Merge branch 'zynq' of git://www.denx.de/git/u-boot-microblazeTom Rini2015-05-26-11/+4
|\
| * ARM: zynq: add separate configuration for ZC702 and ZC706Masahiro Yamada2015-05-25-11/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prior to this commit, ZC702 and ZC706 shared the same configuration and were built as follows: ZC702: make zynq_zc70x_defconfig && make ZC706: make zynq_zc70x_defconfig && make DEVICE_TREE=zynq-zc706 This commit introduces separate configuration for them, which makes the next commit much easier. Going forward, the recommended build commands are: ZC702: make zynq_zc702_defconfig && make ZC706: make zynq_zc706_defconfig && make Although the old work flow is still supported, CONFIG_TARGET_ZC70X has been marked as deprecated. If used, the warning message is shown to prompt users to switch to the new scheme. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | mtd: vf610_nfc: add Freescale NFC controller configs to KconfigStefan Agner2015-05-24-18/+0
|/ | | | | | | | | | | This commit allows users to enable/disable the Freescale NFC controller found in systems like Vybrid (VF610), MPC5125, MCF54418 or Kinetis K70 via Kconfig with more detailed help docs. Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Stefano Babic <sbabic@denx.de> [scottwood: updated vf610twr_nand_defconfig] Signed-off-by: Scott Wood <scottwood@freescale.com>
* Merge git://git.denx.de/u-boot-netTom Rini2015-05-20-1/+3
|\
| * net: Remove all references to CONFIG_ETHADDR and friendsJoe Hershberger2015-05-19-1/+1
| | | | | | | | | | | | | | | | | | | | We really don't want boards defining fixed MAC addresses in their config so we just remove the option to set it in a fixed way. If you must have a MAC address that was not provisioned, then use the random MAC address functionality. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * net: Implement random ethaddr fallback in eth.cJoe Hershberger2015-05-19-0/+2
| | | | | | | | | | | | | | | | | | Implement the random ethaddr fallback in eth.c so it is in a common place and not reimplemented in each board or driver that wants this behavior. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
generated by cgit v1.1 at 2024-11-09 14:06:35 +0000