Simon Glass [Tue, 12 Jun 2018 06:04:59 +0000 (00:04 -0600)]
fdtgrep: Separate out checking of two allocations
The current code might succeed on the first allocation and fail on the
second. Separate the checks to avoid this problem.
Of course, free() will never fail and the chances that (when allocating
two small areas) one will succeed and one will fail are just as remote.
But this keeps coverity happy.
Reported-by: Coverity (CID: 131226) Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Tue, 12 Jun 2018 06:04:58 +0000 (00:04 -0600)]
fdtgrep: Fix logic of free() in do_fdtgrep()
This loop never actually exits, but the way the code is written this is
not obvious. Add an explicit error check.
Reported-by: Coverity (CID: 131280) Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Add explicit init of region to NULL per LLVM warning] Signed-off-by: Tom Rini <trini@konsulko.com>
Simon Glass [Tue, 12 Jun 2018 06:04:56 +0000 (00:04 -0600)]
console: Fix handling of NULL global_data
Both putc() and puts() can be called before global_data is set up. Some of
the code paths don't handle this correctly. Add an explicit test before
any member is accessed.
Reported-by: Coverity (CID: 169030) Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Adam Ford [Tue, 12 Jun 2018 01:05:38 +0000 (20:05 -0500)]
gpio: omap_gpio: Name GPIO's by bank and index with DM_GPIO
There are multiple GPIO banks with up to 32 pins / bank. When
using 'gpio status -a' to read the pins, this patch displays
both GPIO<bank>_<index> similar to how the device trees
display in addition to displaying gpio_#
Adam Ford [Tue, 12 Jun 2018 00:56:49 +0000 (19:56 -0500)]
arm: mach-omap2/omap3/clock.c: Enable all GPIO with CMD_GPIO
When CMD_GPIO is enabled the command 'gpio status -a' can cause
a hang or reboot if GPIO banks are not enabled, because it scans
all banks. This patch enables all GPIO banks so 'gpio status -a'
can fully execute.
Adam Ford [Mon, 11 Jun 2018 22:17:48 +0000 (17:17 -0500)]
block: Add SPL_BLOCK_CACHE and default n
When enabling BLOCK_CACHE on devices with limited RAM during SPL,
some devices may not boot. This creates an option to enable
block caching in SPL by defaults off. It is dependent on SPL_BLK
Fixes: 46960ad6d09b ("block: Have BLOCK_CACHE default to y in some cases") Signed-off-by: Adam Ford <aford173@gmail.com>
Andrew F. Davis [Mon, 11 Jun 2018 19:04:17 +0000 (14:04 -0500)]
arm: Do not clear LR on exception in SPL
When an exception or interrupt occurs the link register (LR) may
contain the source of the exception, although we do not print the
value it may still be extracted with a debugger. When in SPL we
loop on getting and exception, but use a linking branch, which
over-writes the LR value, use a regular branch instruction here.
Yevgeny Popovych [Mon, 11 Jun 2018 11:14:33 +0000 (14:14 +0300)]
fs: btrfs: Do not fail when all root_backups are empty
This is the case when reading freshly created filesystem.
The error message is like the following:
btrfs_read_superblock: No valid root_backup found!
Since the data from super_roots/root_backups is not actually used -
decided to rework btrfs_newest_root_backup() into
btrfs_check_super_roots() that will only check if super_roots
array is valid and correctly handle empty scenario.
As a result:
* btrfs_read_superblock() now only checks if super_roots array is valid;
the case when it is empty is considered OK.
* removed root_backup pointer from btrfs_info,
which would be NULL in case of empty super_roots.
* btrfs_read_superblock() verifies number of devices from the superblock
itself, not newest root_backup.
Ramon Fried [Fri, 8 Jun 2018 17:53:27 +0000 (20:53 +0300)]
iotrace: fix behaviour when buffer is full
Don't continue updating the offset when buffer is full.
When the buffer size exhausts and there's no space left to write
warn the user and update only the needed size and not both the
offset and needed size.
Add needed buffer size information in the iotrace command.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Igor Opaniuk [Sun, 3 Jun 2018 18:56:43 +0000 (21:56 +0300)]
doc: avb2.0: add README about AVB2.0 integration
Contains:
1. Overview of Android Verified Boot 2.0
2. Description of avb subset of commands
3. Examples of errors when boot/vendor/system/vbmeta partitions
are tampered
4. Examples of enabling AVB2.0 on your setup
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Igor Opaniuk [Sun, 3 Jun 2018 18:56:42 +0000 (21:56 +0300)]
test/py: avb2.0: add tests for avb commands
1. Run AVB 2.0 full verification chain, avb verify
2. Check if 'avb get_uuid' works, compare results with
'part list mmc 1' output
3. Test `avb read` commands, which reads N bytes from a partition
identified by a name
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Igor Opaniuk [Sun, 3 Jun 2018 18:56:41 +0000 (21:56 +0300)]
am57xx_hs: avb2.0: add support of AVB 2.0
1. Add vbmeta partition info to android partition layout for TI
platforms.
2. Add support of AVB 2.0 (including avb subset of commands) for am57xx HS
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
[trini: Move to include/environment/ti/boot.h, reword commit slightly] Signed-off-by: Tom Rini <trini@konsulko.com>
Igor Opaniuk [Sun, 3 Jun 2018 18:56:39 +0000 (21:56 +0300)]
cmd: avb2.0: avb command for performing verification
Enable a "avb" command to execute Android Verified
Boot 2.0 operations. It includes such subcommands:
avb init - initialize avb2 subsystem
avb read_rb - read rollback index
avb write_rb - write rollback index
avb is_unlocked - check device lock state
avb get_uuid - read and print uuid of a partition
avb read_part - read data from partition
avb read_part_hex - read data from partition and output to stdout
avb write_part - write data to partition
avb verify - run full verification chain
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Igor Opaniuk [Sun, 3 Jun 2018 18:56:38 +0000 (21:56 +0300)]
avb2.0: implement AVB ops
Implement AVB ops on top of existing mmc subsystem API. Currently there
is a full implementation of such operations, defined by [1]
AVB2.0 specification:
.read_from_partition() - reads N bytes from a partition identified by
a name.
.write_to_partition() - Writes N bytes to a partition identified by a name.
.validate_vbmeta_public_key() - checks if the given public ‘vbmeta’
partition is trusted.
.get_unique_guid_for_partition() - Gets the GUID for a partition identified
by a string name.
As [1] specification recommends to use tamper-evident storage for storing
rollback indexes and device state (LOCKED/UNLOCKED),
currently are only stubs instead of full implementation for these ops:
.read_rollback_index() - Gets the rollback index for a given index location
.write_rollback_index() - Sets the rollback index to a given location
.read_is_device_unlocked() - Gets where the device is unlocked
Igor Opaniuk [Sun, 3 Jun 2018 18:56:36 +0000 (21:56 +0300)]
avb2.0: add Android Verified Boot 2.0 library
Add libavb lib (3rd party library from AOSP), that implements support of
AVB 2.0. This library is used for integrity checking of Android partitions
on eMMC.
libavb was added as it is and minimal changes were introduced to reduce
maintenance cost, because it will be deviated from AOSP upstream in the future.
Changes:
- license headers changed to conform SPDX-style
- avb_crc32.c dropped
- updates in avb_sysdeps_posix.c/avb_sysdeps.h
Bin Meng [Tue, 12 Jun 2018 15:36:22 +0000 (08:36 -0700)]
dm: video: Add an EFI framebuffer driver
This adds a DM video driver for U-Boot as the EFI payload. The driver
makes use of all necessary information from the passed EFI GOP info
to create a linear framebuffer device, as if it were initialized by
U-Boot itself.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anatolij Gustschin <agust@denx.de>
Bin Meng [Tue, 12 Jun 2018 15:36:21 +0000 (08:36 -0700)]
efi: stub: Pass EFI GOP information to U-Boot payload
If UEFI BIOS has the graphics output protocol (GOP), let's pass its
information to U-Boot payload so that U-Boot can utilize it (eg:
an EFI framebuffer driver).
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Tue, 12 Jun 2018 15:36:18 +0000 (08:36 -0700)]
x86: Add generic EFI payload support
It is possible to create a generic EFI payload for all x86 boards.
The payload is configured to include as many generic drivers as
possible. All stuff that touches low-level initialization are not
allowed as such is the EFI BIOS's responsibility. Platform specific
drivers (like gpio, spi, etc) are not included.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Tue, 12 Jun 2018 15:36:16 +0000 (08:36 -0700)]
x86: efi: Refactor the directory of EFI app and payload support
At present the EFI application and payload support codes in the x86
directory is distributed in a hybrid way. For example, the Kconfig
options for both app and payload are in arch/x86/lib/efi/Kconfig,
but the source codes in the same directory get built only for
CONFIG_EFI_STUB.
This refactors the codes by consolidating all the EFI support codes
into arch/x86/cpu/efi, just like other x86 targets.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Tue, 12 Jun 2018 15:36:13 +0000 (08:36 -0700)]
x86: doc: Fix reference to EFI doc in U-Boot
Since commit f3b5056c4e72 ("efi_loader: split README.efi into two
separate documents"), the original README.efi was renamed to
README.u-boot_on_efi, but x86 doc still refers to the old one.
This updates the x86 doc to reference both README.u-boot_on_efi and
README.uefi.
Ivan Gorinov [Thu, 14 Jun 2018 00:27:39 +0000 (17:27 -0700)]
x86: use EFI calling convention for efi_main on x86_64
UEFI specifies the calling convention used in Microsoft compilers;
first arguments of a function are passed in (%rcx, %rdx, %r8, %r9).
All other compilers use System V ABI by default, passing first integer
arguments of a function in (%rdi, %rsi, %rdx, %rcx, %r8, %r9).
These ABI also specify different sets of registers that must be preserved
across function calls (callee-saved).
GCC allows using the Microsoft calling convention by adding the ms_abi
attribute to a function declaration.
Current EFI implementation in U-Boot specifies EFIAPI for efi_main()
in the test apps but uses default calling convention in lib/efi.
Save efi_main() arguments in the startup code on x86_64;
use EFI calling convention for _relocate() on x86_64;
consistently use EFI calling convention for efi_main() everywhere.
Signed-off-by: Ivan Gorinov <ivan.gorinov@intel.com> Reviewed-by: Alexander Graf <agraf@suse.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
Michal Simek [Thu, 14 Jun 2018 08:41:35 +0000 (10:41 +0200)]
serial: zynq: Initialize uart only before relocation
This issue was found when OF_LIVE was enabled that there are scrambled
chars on the console like this:
Chip ID: zu3eg
Watchdog: Started��j� sdhci@ff160000: 0, sdhci@ff170000: 1
In: serial@ff010000
I found a solution for this problem exactly the same as I found later in
serial_msm fixed by:
"serial: serial_msm: initialize uart only before relocation"
(sha1: 7e5ad796bcd65772a87da236ae21cd536ae3a4d2)
What it is happening is that output TX fifo still contains chars to be
sent and _uart_zynq_serial_init() resets TX fifo even in the middle of
transfer.
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Michal Simek [Thu, 14 Jun 2018 07:43:34 +0000 (09:43 +0200)]
serial: zynq: Write chars till output fifo is full
Change logic and put char to fifo till there is a space in output fifo.
Origin logic was that output fifo needs to be empty. It means only one
char was in output queue.
Also remove unused ZYNQ_UART_SR_TXEMPTY macro.
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Luca Ceresoli [Mon, 4 Jun 2018 10:21:01 +0000 (12:21 +0200)]
arm64: zynqmp: accept an absolute path for PMUFW_INIT_FILE
The value of PMUFW_INIT_FILE is prefixed with "$(srctree)/", thus
forcing it to be a relative path inside the U-Boot source tree. Since
the PMUFW is a binary file generated outside of U-Boot, the PMUFW
binary must be copied inside the U-Boot source tree before the
build.
This generates a few problems:
* if the source tree is shared among different out-of-tree builds,
they will pollute (and potentially corrupt) each other
* the source tree cannot be read-only
* any buildsystem must add a command to copy the PMUFW binary
* putting an externally-generated binary in the source tree is ugly
as hell
Avoid these problems by accepting an absolute path for
PMUFW_INIT_FILE. This would be as simple as removing the "$(srctree)/"
prefix, but in order to keep backward compatibility we rather use the
shell and readlink to get the absolute path even when starting from a
relative path.
Since 'readlink -f' produces an empty string if the file does not
exist, we also add a check to ensure the file configured in
PMUFW_INIT_FILE exists. Otherwise the build would exit successfully,
but produce a boot.bin without PMUFW as if PMUFW_INIT_FILE were empty.
Tested in the 12 possible combinations of:
- PMUFW_INIT_FILE empty, relative, absolute, non-existing
- building in-tree, in subdir, in other directory
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Simon Glass <sjg@chromium.org> Cc: Emmanuel Vadot <manu@bidouilliste.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Michal Simek [Fri, 8 Jun 2018 07:36:12 +0000 (09:36 +0200)]
arm: zynq: Drop #address-cells and #size-cells from gpio-keys
dtc is showing some warnings and this change was also done in
the Linux kernel as "Input: gpio-keys - clean up device tree binding
example"
with this fragment in commit message
"Drop #address-cells and #size-cells, which are not required by the
gpio-keys binding documentation, as button sub-nodes are not devices."
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
arm64: zynqmp: Split emmc configuration into emmc0 and emmc1
This patch splits the current mini emmc configuration into emmc0
and emmc1 configurations because emmc is probed at boot time and on
systems which have only one interface mini configuration is failing on
unused interface. This patch also adds required clock node in dts and
enables CONFIG_MMC_SDHCI_ZYNQ through defconfig.
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Marek Vasut [Thu, 31 May 2018 13:18:18 +0000 (15:18 +0200)]
ARM: rmobile: Point load address to more sane area on Gen3
Point the $loadaddr variable and default load address to a more sane
area, 384 MiB from the start of RAM. This is to avoid all the reserved
memory at the beginning of RAM. The old behavior could still be easily
retained by "setenv loadaddr 0x48080000" . The new setup allows us to
use for example modern fitImage with kernel_noload, so use this as a
new preferred default.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Marek Vasut [Thu, 31 May 2018 13:12:53 +0000 (15:12 +0200)]
ARM: rmobile: Point load address to more sane area on Gen2
Point the $loadaddr variable and default load address to a more sane
area, 256 MiB from the start of RAM. While it is convenient to use
uImage without copying, which is why the previous load address was
set the way it was, uImage is now legacy. This behavior could still
be easily retained by "setenv loadaddr 0x40007fc0" . The new setup
allows us to use for example modern fitImage with kernel_noload, so
use this as a new preferred default.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Marek Vasut [Tue, 5 Jun 2018 18:21:30 +0000 (20:21 +0200)]
ARM: rmobile: Zap CONFIG_SYS_CLK_FREQ where applicable
The CONFIG_SYS_CLK_FREQ is not used on some of the Gen3 boards,
remove it. Moreover, on Ebisu this actually didn't match the
comment in the config file at all, but since it was not used,
there was no real problem.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Alexander Graf [Tue, 12 Jun 2018 08:21:16 +0000 (10:21 +0200)]
efi_loader: Allocate memory handle for mem dp
When we boot using memdp (bootefi on an address without previous
load that populates the device path) then the memory device path
we pass in is not backed by any handle.
That can result in weird effects. For example grub gets very grumpy
about this inside the efi_net module and just loops endlessly.
So let's expose a simple handle that the memory device path is backed
on. That way any code that looks for the device the dp is on, finds
one.
When U-Boot is built with 'make -j' there is not guarantee that targets in
directory arch/ are built before targets in directory lib/. The current
build instruction for EFI binaries in lib/ rely on dependencies in arch/.
If $(EFI_CRT0) or $(EFI_RELOC) is not yet built before trying to build
%.efi an error
*** No rule to make target '%.efi'
occurs.
With the patch separate copies of $(EFI_CRT0) and $(EFI_RELOC) named
efi_crt0.o and efi_reloc.o are built in lib/efi_loader and
lib/efi_selftest.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
efi_loader: avoid initializer element is not constant
When building with -pedantic the current definition of EFI_GUID() causes
an error 'initializer element is not constant'.
Currently EFI_GUID() is used both as an anonymous constant and as an
intializer. A conversion to efi_guid_t is not allowable when using
EFI_GUID() as an initializer. But it is needed when using it as an
anonymous constant.
We should not use EFI_GUID() for anything but an initializer. So let's
introduce a variable where needed and remove the conversion.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Sun, 10 Jun 2018 19:51:02 +0000 (21:51 +0200)]
efi_loader: Convert runtime reset from switch to if statements
We currently handle the UEFI runtime reset / power off case handling via
a switch statement. Compilers (gcc in my case) may opt to handle these via
jump tables which they may conveniently put into .rodata which is not part
of the runtime section, so it will be unreachable when executed.
Fix this by just converting the switch statement into an if/else statement.
It produces smaller code that is faster and also correct because we no
longer refer .rodata from efi runtime code.
Reported-by: Andreas Färber <aferber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Tue, 5 Jun 2018 17:20:32 +0000 (19:20 +0200)]
riscv: Add support for HI20 PE relocations
The PE standard allows for HI20/LOW12 relocations. Within the efi_loader
target we always know that our relocation target is 4k aligned, so we
don't need to worry about the LOW12 part.
This patch adds support for the respective relocations. With this and a
few grub patches I have cooking in parallel I'm able to run grub on RISC-V.
Michal Simek [Wed, 13 Jun 2018 08:33:49 +0000 (10:33 +0200)]
net: zynq_gem: Initialize phyreg variable
In case of phyread()/phy_setup_op() timeout code is working with
uninitialized phyreg variable. Initialize this variable to make sure
that code it not working with random value.
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Quentin Schulz [Mon, 4 Jun 2018 10:17:33 +0000 (12:17 +0200)]
net: designware: set the PS bit when resetting DMA bus in MII configuration
On the SPEAr600 SoC, which has the dwmac1000 variant of the IP block,
the DMA reset never succeeds when a MII PHY is used (no problem with a
GMII PHY). The designware_eth_init() function sets the
DMAMAC_SRST bit in the DMA_BUS_MODE register, and then
polls until this bit clears. When a MII PHY is used, with the current
driver, this bit never clears and the driver therefore doesn't work.
The reason is that the PS bit of the GMAC_CONTROL register should be
correctly configured for the DMA reset to work. When the PS bit is 0,
it tells the MAC we have a GMII PHY, when the PS bit is 1, it tells
the MAC we have a MII PHY.
Doing a DMA reset clears all registers, so the PS bit is cleared as
well. This makes the DMA reset work fine with a GMII PHY. However,
with MII PHY, the PS bit should be set.
We have identified this issue thanks to two SPEAr600 platform:
- One equipped with a GMII PHY, with which the existing driver was
working fine.
- One equipped with a MII PHY, where the current driver fails because
the DMA reset times out.
Note: Taken from https://www.spinics.net/lists/netdev/msg432578.html
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
projects / u-boot / log