Lokesh Vutla [Sat, 5 Mar 2016 11:10:32 +0000 (16:40 +0530)]
dm: omap_timer: Fix conversion of address to a pointer
OMAP timer driver directly typecasts fdt_addr_t to a pointer. This is
not strictly correct, as it gives a build warning when fdt_addr_t is u64.
So, use map_physmem for a proper typecasts.
This is inspired by commit 167efe01bc5a9 ("dm: ns16550: Use an address
instead of a pointer for the uart base")
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Because KS2 u-boot works in 32 bit address space the existing ram_size
global data field cannot be used. The maximum, which the get_ram_size()
can detect is 2GB only. The ft_board_setup() needs the actual ddr3 size
to fix up dtb.
This commit introduces the ddr3_get_size() which uses SPD data to
calculate the ddr3 size. This function replaces the "ddr3_size"
environment variable, which was used to get the SODIMM size.
For platforms, which don't have SODIMM with SPD and ddr3 is populated to
a board a simple ddr3_get_size function that returns ddr3 size has to be
implemented. See hardware-k2l.h
ARM: keystone2: use SPD info to configure K2HK and K2E DDR3
This commit replaces hard-coded EMIF and PHY DDR3 configurations for
predefined SODIMMs to a calculated configuration. The SODIMM parameters
are read from SODIMM's SPD and used to calculated the configuration.
The current commit supports calculation for DDR3 with 1600MHz and 1333MHz
only.
Lokesh Vutla [Fri, 4 Mar 2016 16:36:41 +0000 (10:36 -0600)]
ARM: keystone2: K2G: Add support for different arm/device speeds
The maximum device and arm speeds can be determined by reading
EFUSE_BOOTROM register. As there is already a framework for reading this
register, adding support for all possible speeds on k2g devices.
Lokesh Vutla [Fri, 4 Mar 2016 16:36:40 +0000 (10:36 -0600)]
ARM: keystone2: Allow for board specific speed definitions
Its not compulsory that speed definition should be same on EFUSE_BOOTROM
register for all keystone 2 devices. So, allow for board specific
speed definitions.
Suman Anna [Fri, 4 Mar 2016 16:36:39 +0000 (10:36 -0600)]
ARM: keystone2: K2G: power-off DSP during boot
The DSPs are powered on by default upon a Power ON reset, and
they are powered off on current Keystone 2 SoCs - K2HK, K2L, K2E
during the boot in u-boot. This is not functional on K2G though.
Extend the existing DSP power-off support to the only DSP present
on K2G. Do note that the PSC clock domain module id for DSP on K2G
differs from that of previous Keystone2 SoCs.
Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Suman Anna [Fri, 4 Mar 2016 16:36:38 +0000 (10:36 -0600)]
ARM: keystone2: Use macro for DSP GEM power domain
Define a macro for the DSP GEM power domain id number and
use it instead of a hard-coded number in the code that
disables all the DSPs on various Keystone2 SoCs.
Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Stefan Roese [Thu, 3 Mar 2016 08:34:12 +0000 (09:34 +0100)]
lib/crc16.c: Rename cyg_crc16() to crc16_ccitt() and add crc start value
The original name of this function is unclear. This patch renames this
CRC16 function to crc16_ccitt() matching its name with its
implementation.
To make the usage of this function more flexible, lets add the CRC start
value as parameter to this function. This way it can be used by other
functions requiring different start values than 0 as well.
Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
David Lechner [Fri, 26 Feb 2016 06:46:07 +0000 (00:46 -0600)]
arm: Add support for LEGO MINDSTORMS EV3
This is based on the davinci da850evm. It can boot from either the
on-board 16MB flash or from a microSD card. It also reads board
information from an I2C EEPROM.
The EV3 itself initally boots from write-protected EEPROM, so no
u-boot SPL is needed.
Signed-off-by: David Lechner <david@lechnology.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Nishanth Menon [Thu, 25 Feb 2016 18:53:47 +0000 (12:53 -0600)]
configs: k2g_evm: Add TI power processor support
Enable support for PMMC the TI power processor on K2G. This processor
manages all power management related activities on the SoC and and
allows the Operating Systems on compute processors such as ARM, DSP to
offload the power logic away into the power processor.
Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Nishanth Menon [Thu, 25 Feb 2016 18:53:46 +0000 (12:53 -0600)]
ARM: dts: k2g: Add support for PMMC
Enable support for PMMC the TI power processor on K2G. This processor
manages all power management related activities on the SoC and and
allows the Operating Systems on compute processors such as ARM, DSP to
offload the power logic away into the power processor. U-boot just has a
load responsibility, hence the view of the hardware from a bootloader
perspective is different from the view of hardware from a Operating
System perspective. While bootloader just loads up the firmware,
Operating Systems look at the resultant system as "hardware".
Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Nishanth Menon [Thu, 25 Feb 2016 18:53:45 +0000 (12:53 -0600)]
remoteproc: Add support for TI power processor
Many TI System on Chip (SoC) solutions do have a dedicated
microcontroller for doing power management functionality. These include
the AM335x, AM437x, Keystone K2G SoCs. The functionality provided by
these microcontrollers and the communication mechanisms vary very
widely. However, we are able to consolidate some basic functionality to
be generic enough starting with K2G SoC family. Introduce a basic remote
proc driver to support these microcontrollers. In fact, on SoCs starting
with K2G, basic power management functions are primarily accessible for
the High Level Operating Systems(HLOS) via these microcontroller solutions.
Hence, having these started at a bootloader level is pretty much
mandatory.
Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Nishanth Menon [Thu, 25 Feb 2016 18:53:44 +0000 (12:53 -0600)]
ARM: keystone2: psc: introduce function to hold and release module in reset.
These are useful for modules that need to be held in reset and are
enabled for data to be loaded on to them. Typically these are
microcontrollers or other processing entities in the system.
Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Nishanth Menon [Thu, 25 Feb 2016 18:53:42 +0000 (12:53 -0600)]
ARM: keystone2: psc: redo doc in kernel-doc format
u-boot coding style guidance in
http://www.denx.de/wiki/U-Boot/CodingStyle clearly mentions that the
kernel doc style shall be followed for documentation in u-boot.
Current PSC documentation standard does not, so fix that.
Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Nishanth Menon [Wed, 24 Feb 2016 23:48:43 +0000 (17:48 -0600)]
ARM: keystone2: Get rid of unused clock files
With commit fe772ebd285b ("ARM: keystone2: Use common definition for
clk_get_rate"), we have centralized the clock code into a common clock
logic and the redundant files, unfortunately remained... Clean that
up.
Kipisz, Steven [Wed, 24 Feb 2016 18:30:58 +0000 (12:30 -0600)]
board: ti: AM57xx: Add detection logic for AM57xx-evm
Current AM57xx evm supports both BeagleBoard-X15
(http://beagleboard.org/x15) and AM57xx EVM
(http://www.ti.com/tool/tmdxevm5728).
The AM572x EValuation Module(EVM) provides an affordable platform to
quickly start evaluation of Sitara. ARM Cortex-A15 AM57x Processors
(AM5728, AM5726, AM5718, AM5716) and accelerate development for HMI,
machine vision, networking, medical imaging and many other industrial
applications. This EVM is based on the same BeagleBoard-X15 Chassis
and adds mPCIe, mSATA, LCD, touchscreen, Camera, push button and TI's
wlink8 offering.
Since the EEPROM contents are compatible between the BeagleBoard-X15 and
the AM57xx-evm, we add support for the detection logic to enable
support for various user programmable scripting capability.
NOTE: U-boot configuration is currently a superset of AM57xx evm and
BeagleBoard-X15 and no additional configuration tweaking is needed.
This change also sets up the stage for future support of TI AM57xx EVMs
to the same base bootloader build.
Signed-off-by: Steve Kipisz <s-kipisz2@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Kipisz, Steven [Wed, 24 Feb 2016 18:30:57 +0000 (12:30 -0600)]
ARM: OMAP4/5: Add generic board detection hook
Many TI EVMs have capability to store relevant board information
such as DDR description in EEPROM. Further many pad configuration
variations can occur as part of revision changes in the platform.
In-order to support these at runtime, we for a board detection hook
which is available for override from board files that may desire to do
so.
NOTE: All TI EVMs are capable of detecting board information based on
early clocks that are configured. However, in case of additional needs
this can be achieved within the override logic from within the board
file.
Signed-off-by: Steve Kipisz <s-kipisz2@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Lokesh Vutla [Wed, 24 Feb 2016 18:30:54 +0000 (12:30 -0600)]
ARM: omap-common: Add standard access for board description EEPROM
Several TI EVMs have EEPROM that can contain board description information
such as revision, DDR definition, serial number, etc. In just about all
cases, these EEPROM are on the I2C bus and provides us the opportunity
to centralize the generic operations involved.
The on-board EEPROM on the BeagleBone Black, BeagleBone, AM335x EVM,
AM43x GP EVM, AM57xx-evm, BeagleBoard-X15 share the same format.
However, DRA-7* EVMs, OMAP4SDP use a modified format.
We hence introduce logic which is generic between these platforms
without enforcing any specific format. This allows the boards to use the
relevant format for operations that they might choose.
This module will compile for all TI SoC based boards when
CONFIG_TI_I2C_BOARD_DETECT is enabled to have optimal build times for
platforms that require this support.
It is important to note that this logic is fundamental to the board
configuration process such as DDR configuration which is needed in
SPL, hence cannot be part of the standard u-boot driver model (which
is available later in the process). Hence, to aid efficiency, the
eeprom contents are copied over to SRAM scratchpad memory area at the
first invocation to retrieve data.
To prevent churn with cases such as DRA7, where eeprom format maybe
incompatible, we introduce a generic common format in eeprom which
is made available over accessor functions for usage.
Special handling for BBG1 EEPROM had to be introduced thanks to the
weird eeprom rev contents used.
The follow on patches introduce the use of this library for AM335x,
AM437x, and AM57xx.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Steve Kipisz <s-kipisz2@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Kipisz, Steven [Wed, 24 Feb 2016 18:30:52 +0000 (12:30 -0600)]
ARM: OMAP4/5: Centralize early clock initialization
Early clock initialization is currently done in two stages for OMAP4/5
SoCs. The first stage is the initialization of console clocks and
then we initialize basic clocks for functionality necessary for SoC
initialization and basic board functionality.
By splitting up prcm_init and centralizing this clock initialization,
we setup the code for follow on patches that can do board specific
initialization such as board detection which will depend on these
basic clocks.
As part of this change, since the early clock initialization
is centralized, we no longer need to expose the console clock
initialization.
NOTE: we change the sequence slightly by initializing console clocks
timer after the io settings are complete, but this is not expected
to have any functioanlity impact since we setup the basic IO drive
strength initialization as part of do_io_settings.
Signed-off-by: Steve Kipisz <s-kipisz2@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Simon Glass [Tue, 23 Feb 2016 05:55:56 +0000 (22:55 -0700)]
spl: Add an option to load a FIT containing U-Boot
This provides a way to load a FIT containing U-Boot and a selection of device
tree files. The board can select the correct device tree by probing the
hardware. Then U-Boot is started with the selected device tree.
Simon Glass [Tue, 23 Feb 2016 05:55:55 +0000 (22:55 -0700)]
spl: Add a way for boards to select which device tree to load
SPL calls this function with each device tree it can find in the FIT. The
board should implement this function, using whatever hardware detection it
can muster to determine the correct device tree.
Simon Glass [Tue, 23 Feb 2016 05:55:54 +0000 (22:55 -0700)]
mkimage: Bring data into the FIT before processing
Since we now support data outside the FIT image, bring it into the FIT image
first before we do any processing. This avoids adding new functionality to
the core FIT code for now.
Simon Glass [Tue, 23 Feb 2016 05:55:53 +0000 (22:55 -0700)]
mkimage: Support placing data outside the FIT
One limitation of FIT is that all the data is 'inline' within it, using a
'data' property in each image node. This means that to find out what is in
the FIT it is necessary to scan the entire file. Once loaded it can be
scanned and then the images can be copied to the correct place in memory.
In SPL it can take a significant amount of time to copy images around in
memory. Also loading data that does not end up being used is wasteful. It
would be useful if the FIT were small, acting as a directory, with the
actual data stored elsewhere.
This allows SPL to load the entire FIT, without the images, then load the
images it wants later.
Add a -E option to mkimage to request that it output an 'external' FIT.
Simon Glass [Tue, 23 Feb 2016 05:55:52 +0000 (22:55 -0700)]
mkimage: Support adding device tree files to a FIT
To make the auto-FIT feature useful we need to be able to provide a list of
device tree files on the command line for mkimage to add into the FIT. Add
support for this feature.
So far there is no support for hashing or verified boot using this method.
For those cases, a .its file must still be provided.
Simon Glass [Tue, 23 Feb 2016 05:55:51 +0000 (22:55 -0700)]
mkimage: Support automatic creating of a FIT without a .its
At present, when generating a FIT, mkimage requires a .its file containing
the structure of the FIT and referring to the images to be included.
Creating the .its file is a separate step that makes it harder to use FIT.
This is not required for creating legacy images.
Often the FIT is pretty standard, consisting of an OS image, some device
tree files and a single configuration. We can handle this case automatically
and avoid needing a .its file at all.
To start with, support automatically generate the FIT using a new '-f auto'
option. Initially this only supports adding a single image (e.g. a linux
kernel) and a single configuration.
Simon Glass [Tue, 23 Feb 2016 05:55:48 +0000 (22:55 -0700)]
mkimage: Allow a FIT to include an image of any type
At present FIT images are set up by providing a device tree source file
which is a file with a .its extension. We want to support automatically
creating this file based on the image supplied to mkimage. This means that
even though the final file type is always IH_TYPE_FLATDT, the image inside
may be something else.
Simon Glass [Tue, 23 Feb 2016 05:55:45 +0000 (22:55 -0700)]
fdt: Allow libfdt to be used in SPL
Add an option to enable libfdt in SPL. This can be useful when decoding
FIT files in SPL.
We need to make sure this option is not enabled in SPL by this change.
Also this option needs to be enabled in host builds. Si add a new
IMAGE_USE_LIBFDT #define which can be used in files that are built on the
host but must also build for U-Boot and SPL.
Unfortunately the first one is a little complicated. We need to make sure
this option is not enabled in SPL by this change. Also this option is
enabled automatically in the host builds by defining CONFIG_FIT in the
image.h file. To solve this, add a new IMAGE_USE_FIT #define which can
be used in files that are built on the host but must also build for U-Boot
and SPL.
Note: Masahiro's moveconfig.py script is amazing.
Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Add microblaze change, various configs/ re-applies] Signed-off-by: Tom Rini <trini@konsulko.com>
Simon Glass [Tue, 23 Feb 2016 05:55:41 +0000 (22:55 -0700)]
freescale: Remove CONFIG_DM from header files
Kconfig options must defined in the defconfig files. Since RSA_SOFTWARE_EXP
relies on CONFIG_DM, unless it is set in kconfig we cannot enable RSA.
Remove the hacks which enable CONFIG_DM in header files and update the
defconfig.
Simon Glass [Tue, 23 Feb 2016 05:55:39 +0000 (22:55 -0700)]
libfdt: Add a function to write a property placeholder
The existing function to add a new property to a tree being built requires
that the entire contents of the new property be passed in. For some
applications it is more convenient to be able to add the property contents
later, perhaps by reading from a file. This avoids double-buffering of the
contents.
Add a new function to support this and adust the existing fdt_property() to
use it.
Stuart Longland [Tue, 23 Feb 2016 05:51:26 +0000 (15:51 +1000)]
common: Add support for environment file in EXT4.
This is an enhancement that permits storing the environment file on an
EXT4 partition such as the root filesystem. It is based on the existing
FAT environment file code.
Marek Vasut [Fri, 11 Mar 2016 02:20:16 +0000 (03:20 +0100)]
sf: Correct data types in stm_is_locked_sr()
The stm_is_locked_sr() function is picked from Linux kernel. For reason
unknown, the 64bit data types used by the function and present in Linux
were replaced with 32bit unsigned ones, which causes trouble.
The testcase performed was done using ST M25P80 chip.
The command used was:
=> sf protect unlock 0 0x10000
The call chain starts in stm_unlock(), which calls stm_is_locked_sr()
with negative ofs argument. This works fine in Linux, where the "ofs"
is loff_t, which is signed long long, while this fails in U-Boot, where
"ofs" is u32 (unsigned int). Because of this signedness problem, the
expression past the return statement to be incorrectly evaluated to 1,
which in turn propagates back to stm_unlock() and results in -EINVAL.
The correction is very simple, just use the correctly sized data types
with correct signedness in the function to make it work as intended.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jteki@openedev.com>
Lokesh Vutla [Sat, 5 Mar 2016 11:13:06 +0000 (16:43 +0530)]
dm: ti_qspi: Fix conversion of address to a pointer
TI QSPI driver directly typecasts fdt_addr_t to a pointer. This is
not strictly correct, as it gives a build warning when fdt_addr_t is u64.
So, use map_physmem for a proper typecasts.
This is inspired by commit 167efe01bc5a9 ("dm: ns16550: Use an address
instead of a pointer for the uart base")
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Chris Zhong [Mon, 7 Mar 2016 06:51:13 +0000 (14:51 +0800)]
rockchip: rk3288: correct sdram setting
The DMC driver in v3.14 kernel[0] get the ddr setting from PMU_SYS_REG2,
and it expects uboot to store the value using a same protocol. But now
the ddr setting value is different with DMC, so if you enable the DMC,
system would crash in kernel. Correct the sdram setting here, according
to the requirements of kernel.
FUKAUMI Naoki [Sat, 5 Mar 2016 13:32:02 +0000 (13:32 +0000)]
rockchip: make configure_emmc() empty for Firefly-RK3288
on v2016.03-rc3, size of SPL image compiled by gcc 5.3.0 is too large for
Firefly-RK3288. (it's fine for Rock2)
$ gcc --version
gcc (Ubuntu/Linaro 5.3.0-3ubuntu1~14.04) 5.3.0 20151204
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ ./tools/mkimage -n rk3288 -T rksd -d spl/u-boot-spl-dtb.bin u-boot-spl-dtb.img
Warning: SPL image is too large (size 0x80d0) and will not boot
to reduce size of SPL image, this patch makes configure_emmc() empty for
Firefly-RK3288 as same as Rock2.
MIPS: pic32mzdask: use CONFIG_USE_PRIVATE_LIBGCC=y
MIPS EL boards should define CONFIG_USE_PRIVATE_LIBGCC=y to work
with EB-only toolchains like the one from kernel.org. If one do
not globally set CONFIG_USE_PRIVATE_LIBGCC=y, the build fails with:
/opt/gcc-4.9.0-nolibc/mips-linux/bin/mips-linux-ld.bfd: /opt/gcc-4.9.0-nolibc/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_lshrdi3.o): compiled for a big endian system and target is little endian
/opt/gcc-4.9.0-nolibc/mips-linux/bin/mips-linux-ld.bfd: /opt/gcc-4.9.0-nolibc/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_lshrdi3.o): endianness incompatible with that of the selected emulation
/opt/gcc-4.9.0-nolibc/mips-linux/bin/mips-linux-ld.bfd: failed to merge target specific data of file /opt/gcc-4.9.0-nolibc/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_lshrdi3.o)
/opt/gcc-4.9.0-nolibc/mips-linux/bin/mips-linux-ld.bfd: /opt/gcc-4.9.0-nolibc/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_ashldi3.o): compiled for a big endian system and target is little endian
/opt/gcc-4.9.0-nolibc/mips-linux/bin/mips-linux-ld.bfd: /opt/gcc-4.9.0-nolibc/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_ashldi3.o): endianness incompatible with that of the selected emulation
/opt/gcc-4.9.0-nolibc/mips-linux/bin/mips-linux-ld.bfd: failed to merge target specific data of file /opt/gcc-4.9.0-nolibc/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_ashldi3.o)
/work/git-trees/u-boot-mips/Makefile:1171: recipe for target 'u-boot' failed
One example for a failing build is Travis CI.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Purna Chandra Mandal <purna.mandal@microchip.com>
MIPS: fix mips_cache fallback without __builtin_mips_cache
The "R" constraint supplies the address of an variable in a register. Use
"r" instead and adjust asm to supply the content of addr in a register
instead.
Fixes: 2b8bcc5a ("MIPS: avoid .set ISA for cache operations") Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Stephen Warren [Sat, 5 Mar 2016 17:30:53 +0000 (10:30 -0700)]
malloc: remove !gd handling
Following the previous patch, malloc() is never called before gd is set,
so we can remove the special-case check for this condition.
This reverts commit 854d2b9753e4 "dlmalloc: ensure gd is set for early
alloc".
Cc: Rabin Vincent <rabin@rab.in> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Stephen Warren [Sat, 5 Mar 2016 17:30:52 +0000 (10:30 -0700)]
malloc: use hidden visibility
When running sandbox, the following phases occur, each with different
malloc implementations or behaviors:
1) Dynamic linker execution, using the dynamic linker's own malloc()
implementation. This is fully functional.
2) After U-Boot's malloc symbol has been hooked into the GOT, but before
any U-Boot code has run. This phase is entirely non-functional, since
U-Boot's gd symbol is NULL and U-Boot's initf_malloc() and
mem_malloc_init() have not been called.
At least on Ubuntu Xenial, the dynamic linker does make both malloc() and
free() calls during this phase. Currently these free() calls crash since
they dereference gd, which is NULL.
U-Boot itself makes no use of malloc() during this phase.
3) U-Boot execution after gd is set and initf_malloc() has been called.
This is fully functional, albeit via a very simple malloc()
implementation.
4) U-Boot execution after mem_malloc_init() has been called. This is fully
functional with a complete malloc() implementation.
Furthermore, if code that called malloc() during phase 1 calls free() in
phase 3 or later, it is likely that heap corruption will occur, since
U-Boot's malloc implementation will assume the pointer is part of its own
heap, although it isn't. I have not actively observed this happening.
To prevent phase 2 from happening, this patch makes all of U-Boot's malloc
library public symbols have hidden visibility. This prevents them from
being hooked into the GOT, so only code in the U-Boot binary itself
actually calls them; any other code will call into the standard C library
malloc(). This also avoids the "furthermore" issue mentioned above.
I have seen references to this GCC pragma in blog posts from 2008, and
RHEL5's ancient gcc appears to accept it fine, so I believe it's quite
safe to use it without checking gcc version.
Cc: Rabin Vincent <rabin@rab.in> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Tom Rini [Sat, 5 Mar 2016 19:07:44 +0000 (14:07 -0500)]
sandbox: Fix building with LLVM
- The macro __BIGGEST_ALIGNMENT__ is gcc-specific. If it is not defined
we'll just assume 16. This is correct for at least the common cases
and LLVM does not provide an equivalent macro.
- When linking U-Boot we're passing -T to the linker, and while gcc will
just pass this along with LLVM we need to be specific.
Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
api: Export API structure address as an environment variable
This patch makes the U-Boot api export its structure address as an environment
variable, so it can be used to directly hint FreeBSD's loader of api's location.
The relevant FreeBSD loader change is currently under review at:
https://reviews.freebsd.org/D5492
Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
Masahiro Yamada [Fri, 4 Mar 2016 06:56:16 +0000 (15:56 +0900)]
pinctrl: uniphier: set input-enable before pin-muxing
While IECTRL is disabled, input signals are pulled-down internally.
If pin-muxing is set up first, glitch signals (Low to High transition)
might be input to hardware blocks.
Bad case scenario:
[1] The hardware block is already running before pinctrl is handled.
(the reset is de-asserted by default or by a firmware, for example)
[2] The pin-muxing is set up. The input signals to hardware block
are pulled-down by the chip-internal biasing.
[3] The pins are input-enabled. The signals from the board reach the
hardware block.
Actually, one invalid character is input to the UART blocks for such
SoCs as PH1-LD4, PH1-sLD8, where UART devices start to run at the
power on reset.
To avoid such problems, pins should be input-enabled before muxing.
For the case where an external VBUS is used, we should enable the external
VBUS comparator in the driver. This would prevent an unnecessary overcurrent
error which would then disable the host port.
The overcurrent condition was happening on the SoCFPGA Cyclone5 devkit, thus
USB was not working on the devkit. This patch fixes that problem.
Soeren Moch [Tue, 9 Feb 2016 15:53:27 +0000 (16:53 +0100)]
board: tbs2910: Fix eMMC BOOTCFG value
Fix the BOOTCFG value for eMMC in the same way as commit 214c3f0f9921250eb336c7effadcc16158ea9df5
[imx: MX6DQ{P}/DL:SABRESD Fix bmode eMMC failure]
did for sabresd.
Bhuvanchandra DV [Wed, 24 Feb 2016 08:33:24 +0000 (14:03 +0530)]
colibri-vf: Disable pull-up configuration in GPIO pin mux
During very early boot-ROM execution the pinmux
configuration isi in Hi-Z state. If pull-up is enabled
on GPIO pad's there will be a short period of toggle
from high to low on the IO when GPIO is set low during
boot. To avoid this glitch, disable pull-up configuration
in GPIO pinmux.
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Sam Protsenko [Tue, 16 Feb 2016 17:59:19 +0000 (19:59 +0200)]
usb: gadget: composite: Correct recovery path for register
In case when usb_composite_register() failed once (for whatever reason),
it will fail further even if all conditions are correct. Example:
=> fastboot 2
Invalid Controller Index
couldn't find an available UDC
g_dnl_register: failed!, error: -19
exit not allowed from main input shell.
=> fastboot 0
g_dnl_register: failed!, error: -22
exit not allowed from main input shell.
Despite that 0 is correct index for USB controller, "fastboot 0" command
will fail, because "composite" structure wasn't cleared properly on
previous fail (on "fastboot 2" command).
This patch fixes that erroneous behavior, allowing us to use composite
even after previous failure.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Sam Protsenko [Fri, 26 Feb 2016 19:37:52 +0000 (21:37 +0200)]
arm: dra7xx: Define Android partition table
"fastboot oem format" command reuses "gpt write" command, which in turn
requires correct partitions defined in $partitions variable. This patch
adds such definition of Android partitions for DRA7XX EVM board.
By default $partitions variable contains Linux partition table. In order
to prepare Android environment one can run next commands from U-Boot
shell:
=> env set partitions $partitions_android
=> env save
After those operations one can go to fastboot mode and perform
"fastboot oem format" to create Android partition table.
While at it, enable CONFIG_RANDOM_UUID to spare user from providing
UUIDs for each partition manually.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Tom Rini <trini@konsulko.com>
sniper: Various minor cleanups, missing Kconfig configs and reorganisation
This introduces some minor cleanups, regarding aspects such as board name, code
and headers organization as well as deprecated and missing config options.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Reviewed-by: Tom Rini <trini@konsulko.com>
Tom Rini [Mon, 29 Feb 2016 19:47:47 +0000 (14:47 -0500)]
amcc-common.h: Disable CONFIG_SYS_LONGHELP
There are a number of AMCC platforms which are close to, or with some
toolchains exceeding, the size constraints. Disable CONFIG_SYS_LONGHELP
to get us room to build with again.
Tom Rini [Mon, 29 Feb 2016 16:34:15 +0000 (11:34 -0500)]
compiler*.h: sync include/linux/compiler*.h with Linux 4.5-rc6
Copy these from Linux v4.5-rc6 tag.
This is needed so that we can keep up with newer gcc versions. Note
that we don't have the uapi/ hierarchy from the kernel so continue to
use <linux/types.h>
Masahiro Yamada [Fri, 26 Feb 2016 09:59:45 +0000 (18:59 +0900)]
ARM: uniphier: fix warnings reported by aarch64 compiler
The UniPhier SoC family has not supported ARMv8 yet, but these would
cause warnings if they were compiled with a 64bit compiler. Before
adding the ARMv8 support really, fix them now.
Because UniPhier SoCs do not support Large Physical Address Extension,
casting "phys_addr_t" into "unsigned long" would carry the address
as is.
Masahiro Yamada [Fri, 26 Feb 2016 09:59:44 +0000 (18:59 +0900)]
ARM: uniphier: prepare directory structure for ARMv8 SoC support
Before adding ARMv8 support, this commit refactors the directory
structure. Move ARMv7 specific files to arch/arm/mach-uniphier/arm32
to avoid a mess by mixture of ARMv7 and ARMv8 code. Also move the
"select CPU_V7" to the lower-level menu because we will have to
select ARM64 instead of CPU_V7 for ARMv8 SoCs.
While this is a correct change to do long term it unfortunately breaks a
number of platforms that are using pdata and not named struct members so
they are getting all of their data after 'base' incorrect.
Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tom Rini <trini@konsulko.com>
Masahiro Yamada [Fri, 26 Feb 2016 09:59:42 +0000 (18:59 +0900)]
ARM: uniphier: rework UniPhier SoC select in Kconfig
The chains of "depends on <SoC_name>" in the current Kconfig is
clumsy. The idea here is to allow users to choose a SoC group first
(SoC group consists of some SoCs that can coexist in one binary).
Then, allow to enable/disable each SoC support in the selected SoC
group. This makes the Kconfig menu clearer.
Masahiro Yamada [Fri, 26 Feb 2016 09:59:41 +0000 (18:59 +0900)]
ARM: uniphier: merge two defconfig files
PH1-Pro5 support and ProXstream2/PH1-LD6b support can coexist in one
image and there is bit more room in SPL to accommodate all of them.
Merge uniphier_pro5_defconfig into uniphier_pxs2_defconfig.
projects / u-boot.git / log