The 'u-boot,i2c-transaction-bytes' device tree property provides
information regarding number of bytes transferred by a device in a
single transaction.
This change is necessary to avoid hanging devices after soft reset.
One notable example is communication with MC34708 device:
1. Reset when communicating with MC34708 via I2C.
2. The u-boot (after reboot -f) tries to setup the I2C and then calls
force_idle_bus. In the same time MC34708 still has some data to be sent
(as it transfers data in 24 bits chunks).
3. The force_idle_bus() is not able to make the bus idle as 8 SCL
clocks may be not enough to have the full transmission.
4. We end up with I2C inconsistency with MC34708.
This PMIC device requires 24+ SCL cycles to make finish any pending I2C
transmission.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The following TODOs are closed:
- GetNextVariableName is not implemented
- event groups
- manage events in a linked list
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
We currently only support EFI_FILE_PROTOCOL_REVISION while
UEFI specs 2.4 - 2.7 prescribe EFI_FILE_PROTOCOL_REVISION2.
Add a todo.
Add missing constants for the EFI file protocol revision.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Changing voltage and enabling regulator might require delays so the
regulator stabilizes at expected level.
Add support for "regulator-ramp-delay" binding which can introduce
required time to both enabling the regulator and to changing the
voltage.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Alignment with kernel directory name as it have already bindings for
DDR controllers in the directory:
Documentation/devicetree/bindings/memory-controller
PS: the drivers using RAM u-class should be associated with
this binding directory
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
The readme guide describes the procedure to build, flash and boot Linux
using U-Boot on HiFive Unleashed. It also explains the current state of
U-boot support and future action items.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
This patch adds fixed-factor clock driver which derives clock
rate by dividing (div) and multiplying (mult) fixed factors
to a parent clock.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Without this padding nyan-big ends at a blank screen on boot.
Details on how to get to this padding can be found in the README.chromium under Notes.
Signed-off-by: Tristan Bastian <tristan-c.bastian@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
The Intel High-definition Audio is a newer-generation audio system which
provides for transfer of a large number of audio stream, each containing
up to 16 channels.
Add support for HDA as a library which can be used by other drivers.
U-Boot currently uses only two channels (stereo).
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present it is possible to '#define DEBUG' at the top of a file which
causes all debug() statements in that file to become active. There is
currently no equivalent with logging, but this is a useful function.
Add a LOG_DEBUG define along with documentation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The log_debug(), etc. function are documented only in the header file at
present. Add a section to README.log also.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The secure_boot.txt guide was replaced by mx6_mx7_secure_boot.txt and
mx6_mx7_spl_secure_boot.txt documents.
Both documents covers all steps needed for SPL and non-SPL tagets,
so remove secure_boot.txt file to avoid duplicated content.
Signed-off-by: Breno Lima <breno.lima@nxp.com>
All guides are currently located at doc/imx/habv4/guides/ directory.
Move encrypted_boot.txt document to guides directory.
Signed-off-by: Breno Lima <breno.lima@nxp.com>
The current U-Boot implementation includes SPL targets for
some NXP development boards:
- mx6sabreauto_defconfig
- mx6sabresd_defconfig
- mx6ul_14x14_evk_defconfig
- mx6ul_9x9_evk_defconfig
Add additional steps needed to completly secure the
bootloader image.
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Add HABv4 documentation for non-SPL targets covering the
following topics:
- How to sign an securely boot an u-boot-dtb.imx image.
- How to extend the root of trust for additional boot images.
- Add 3 CSF examples.
- Add IVT generation script example.
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Utkarsh Gupta <utkarsh.gupta@nxp.com>
Signed-off-by: Breno Lima <breno.lima@nxp.com>
The HABv4 is supported in i.MX50, i.MX53, i.MX6, i.MX7,
series and i.MX 8M, i.MX8MM devices.
Add an introductory document containing the following topics:
- HABv4 Introduction
- HABv4 Secure Boot
- HABv4 Encrypted Boot
- HAB PKI tree generation
- HAB Fast Authentication PKI tree generation
- SRK Table and SRK Hash generation
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Utkarsh Gupta <utkarsh.gupta@nxp.com>
Signed-off-by: Breno Lima <breno.lima@nxp.com>
There is no need to have an extra hab directory under doc/imx/.
Habv4 and AHAB documentation can be added directly in doc/imx/ for a
cleaner documentation structure.
Signed-off-by: Breno Lima <breno.lima@nxp.com>
CONFIG_OF_SEPARATE description is not in align with actual code in Makefile and
thus has misleading instructions and explanation.
Make it aligned with the actual code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Common sound support
buildman environment support
of-platdata documentation improvements
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Merge tag 'dm-pull-10feb19' of git://git.denx.de/u-boot-dm
Samsung sound patches (applied for Samsung maintainer)
Common sound support
buildman environment support
of-platdata documentation improvements
Improve some things in the documentation of OF_PLATDATA that I found
while porting socfgpa_gen5 to it.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
To activate the csg option, the driver need to set the bit2
of PLLNCR register = SSCG_CTRL: Spread Spectrum Clock Generator
of PLLn enable.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Booting from UART and USB on HS devices is now supported for this
platform. Update documentation for the same.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Now that new SPI NOR layer uses stateless 4 byte opcodes by default,
don't enable SPI_FLASH_BAR. For SPI controllers that cannot support
4-byte addressing, (stm32_qspi.c, fsl_qspi.c, mtk_qspi.c, ich.c,
renesas_rpc_spi.c) add an imply clause to enable SPI_FLASH_BAR so as to
not break functionality.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
SF_DUAL_FLASH claims to enable support for SF_DUAL_STACKED_FLASH and
SF_DUAL_PARALLEL_FLASH. But, in current U-Boot code, grepping for above
enums yield no user and therefore support seems to be incomplete. Remove
these configs so as to avoid confusion.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
Change maintainers to Prabhakar Kushwaha for fsl-qoriq, mpc85xx
and mpc86xx.
Signed-off-by: York Sun <york.sun@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
* support for Chromebook Bob
* full pinctrl driver using DTS properties
* documentation improvements
* I2S support for some Rockchip SoCs
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Merge tag 'for-master-20190201' of git://git.denx.de/u-boot-rockchip
u-boot-rockchip changes for 2019.04-rc1:
* support for Chromebook Bob
* full pinctrl driver using DTS properties
* documentation improvements
* I2S support for some Rockchip SoCs
Bob is a 10-inch chromebook produced by Asus. It has two USB 3.0 type-C
ports, 4GB of SDRAM, WiFi and a 1280x800 display. It uses its USB ports
for both power and external display. It includes a Chrome OS EC
(Cortex-M3) to provide access to the keyboard and battery functions.
Support so far includes only:
- UART
- SDRAM
- MMC, SD card
- Cros EC (but not keyboard)
Not included:
- Keyboard
- Display
- Sound
- USB
- TPM
Bob is quite similar to Kevin, the Samsung Chromebook Plus, but support
for this is not provided in this series.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
We use every second block when creating a SPI image, so update the text to
say this explicitly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Quite a wide range of Rockchip SoCs are supported in mainline U-Boot now,
so drop the comment about needing to add more.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
At present some Rockchip SoCs and boards are not mentioned in the README.
So that people can see which SoCs are supported, expand the list to
include everything.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Replace CONFIG_SPL_EXT_SUPPORT to CONFIG_SPLY_FS_EXT4 so both
obj-$(CONFIG_$(SPL_)FS_EXT4) and CONFIG_IS_ENABLED(FS_EXT4) can be
used to control the build in both SPL and U-Boot.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Replace CONFIG_SPL_FAT_SUPPORT with CONFIG_SPL_FS_FAT so
obj-$(CONFIG_$(SPL_)FS_FAT) can be used to control the build in both
SPL and U-Boot.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This add device tree binding documentation for the MSCC serial GPIO
driver.
Signed-off-by: Lars Povlsen <lars.povlsen@microsemi.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Switching private data manual allocation to driver model auto allocation
so users no longer need to deallocate themself because this would be
deallocated by driver model when the device is no longer required.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
- v2019.04 for no dm conversion drivers
- v2019.07 for partially converted drivers.
Note: there were many updates on this deadline, so better
not update this again.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
