Tom Rini [Tue, 25 Jan 2022 13:01:43 +0000 (08:01 -0500)]
Merge branch '2022-01-24-assorted-updates'
- A number of cleanups to Python code based on running pylint
- Integrate changes so that we can run "make pylint" and compare the
results to a current baseline. Keep this as a manual check for now.
- Improve functionality of moveconfig.py
- pci: iproc: Set all 24 bits of PCI class code
Simon Glass [Sat, 18 Dec 2021 21:54:34 +0000 (14:54 -0700)]
moveconfig: Use a function to read files
At present there is quite a bit of ad-hoc code reading from files. The
most common case is to read the file as lines. Put it in a function and
set the unicode encoding correctly.
Avoid writing back to a file when there are obviously no changes as this
speeds things up slightly.
Simon Glass [Sat, 18 Dec 2021 21:54:33 +0000 (14:54 -0700)]
moveconfig: Use a function to write files
At present there is quite a bit of ad-hoc code writing to files. The
treatment of newlines is different in some of them. Put it in a function
and set the unicode encoding correctly.
Simon Glass [Sat, 18 Dec 2021 21:54:31 +0000 (14:54 -0700)]
moveconfig: Convert to ArgumentParser
This is a newer library and is now preferred for Python scripts. Update
the code to use it instead of optparse
Use 'args' instead of 'options' throughout, since this is the term used
in that module. Also it helps to avoid confusion with CONFIG options, a
term that is used in this file.
Simon Glass [Sat, 18 Dec 2021 15:09:46 +0000 (08:09 -0700)]
moveconfig: Allow querying board configuration
It is useful to be able to find out which boards define a particular
option, or combination of options. This is not as easy as grepping the
defconfig files since many options are implied by others.
Add a -f option to the moveconfig tool to permit this. Update the
documentation to cover this, including a better title for the doc page.
Simon Glass [Mon, 22 Nov 2021 03:48:39 +0000 (20:48 -0700)]
tools: Add init files for Python tools
Add some empty __init__ files for binman, buildman and dtoc so that
pylint is able to recognise these as Python modules and produce more
useful pylint output.
- Assorted dumpimage/mkimage fixes, allow setting the signature
algorithm on the command line with mkimage
- Bugfix to the misc uclass, CONFIG_MP / CMD_MP Kconfig logic improved,
updated Xen platform MAINTAINERS entry and fixed vexpress_aemv8a_semi
booting.
The component st_size of struct stat is of type off_t. Depending on the
system printing it using %ld leads to a warning:
tools/mkimage.c:438:54: warning: format '%ld' expects argument of type
'long int', but argument 5 has type
'off_t' {aka 'long long int'} [-Wformat=]
438 | "%s: Bad size: \"%s\" is not valid image: size %ld < %u\n",
| ~~^
| |
| long int
| %lld
When comparing an off_t value to a 32bit integer we should not convert to
uint32_t but to off_t which may be wider.
Reported-by: Milan P. Stanić <mps@arvanta.net> Fixes: 331f0800f1a3 ("mkimage: allow -l to work on block devices on Linux") Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Jan Kiszka [Fri, 14 Jan 2022 09:21:19 +0000 (10:21 +0100)]
mkimage: Allow to specify the signature algorithm on the command line
This permits to prepare FIT image description that do not hard-code the
final choice of the signature algorithm, possibly requiring the user to
patch the sources.
When -o <algo> is specified, this information is used in favor of the
'algo' property in the signature node. Furthermore, that property is set
accordingly when writing the image.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
John Keeping [Tue, 11 Jan 2022 17:04:49 +0000 (17:04 +0000)]
misc: mark write buffer const
The write operation in misc_ops already takes a "const void *" buffer,
but misc_write() takes a mutable "void *". There's no reason for this,
so make misc_write() consistent with the standard write() prototype.
Signed-off-by: John Keeping <john@metanate.com> Reviewed-by: Simon Glass <sjg@chromium.org>
tools/fitimage: make sure dumpimage still works when "@" are detected
fit_verify_header fails if it detects unit addresses "@". However, this
will break tools like dumpimage on fit images which worked with previous
versions of the tool (e.g. 2020.04 vs 2021.07). As an example the output
of:
dumpimage -l <fit image>
is:
FIT description: U-Boot fitImage for Linux Distribution
Created: Thu Jan 1 01:00:00 1970
Image 0 (kernel@1)
Description: Linux kernel
Created: Thu Jan 1 01:00:00 1970
Type: Kernel Image
Compression: gzip compressed
Data Size: 6442456 Bytes = 6291.46 KiB = 6.14 MiB
Architecture: AArch64
OS: Linux
Load Address: 0x80080000
Entry Point: 0x80080000
Hash algo: sha256
Hash value: ...
Image 1 (fdt@freescale_fsl-s32g274a-evb.dtb)
Description: Flattened Device Tree blob
Created: Thu Jan 1 01:00:00 1970
Type: Flat Device Tree
Compression: uncompressed
Data Size: 39661 Bytes = 38.73 KiB = 0.04 MiB
Architecture: AArch64
Hash algo: sha256
Hash value: ...
Default Configuration: 'conf@freescale_fsl-s32g274a-evb.dtb'
Configuration 0 (conf@freescale_fsl-s32g274a-evb.dtb)
Description: 1 Linux kernel, FDT blob
Kernel: kernel@1
FDT: fdt@freescale_fsl-s32g274a-evb.dtb
Hash algo: sha256
Hash value: unavailable
But with newer version it shows:
dumpimage -l <fit image>
GP Header: Size d00dfeed LoadAddr 62f0a4
This commit will output a warning that unit addresses were detected but
will not fail:
dumpimage -l <fit image>
Image contains unit addresses @, this will break signing
...
Signed-off-by: Stefan Eichenberger <eichest@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
fit_extract_contents does a fit_check_format even thought it was already
checked during imagetool_verify_print_header.
Therefore, this check is not necessary. This commit removes the
redundancy.
Signed-off-by: Stefan Eichenberger <eichest@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Andre Przywara [Fri, 21 Jan 2022 16:36:04 +0000 (16:36 +0000)]
vexpress64: semi_defconfig: disable CRC32 support
Commit 270f8710f92f ("crc32: Add crc32 implementation using
__builtin_aarch64_crc32b") enabled the usage of ARMv8 CRC instructions
by default, for all arm64 builds. And indeed all Arm Ltd. v8 Cortex-A
cores support the instructions, and they are mandatory starting with
architecture revision v8.1, so realistically every known hardware
implementation should support them.
The Arm Fastmodel however defaults to the bare minimum ARMv8 feature set
by default, which means v8.0 without the CRC instructions, so U-Boot
hangs very early at the moment, without any output (the boot-wrapper or
TF-A printing the last visible lines).
Support for those instructions can be enabled on the model command line
by either:
-C cluster0.cpu0.enable_crc32=1 (for each core)
or by using a higher architecture revision by default:
-C cluster0.has_arm_v8-1=1 (for each cluster)
Of course any arch revision higher than v8.1 would work as well.
But for the sake of a smooth out-of-the-box experience, let's just
disable the usage of those instructions in the defconfig, to avoid
random hangs without any clues.
Reported-by: Ross Burton <ross.burton@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Marek Vasut <marex@denx.de>
Patrice Chotard [Thu, 20 Jan 2022 07:19:15 +0000 (08:19 +0100)]
configs: stm32mp15: Enable OF_BOARD flag
Since commit 985503439762 ("fdt: Don't call board_fdt_blob_setup()
without OF_BOARD") board_fdt_blob_setup() is no more called on
STM32MP platforms in trusted boot which hangs during boot process.
Enable OF_BOARD flag to fix this issue.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Patrick Delaunay [Tue, 18 Jan 2022 09:33:14 +0000 (10:33 +0100)]
stm32prog: add partition name in treat_partition_list error messages
Add the partition name and remove the line number in error messages
of treat_partition_list() to provide correct information to user of
STM32CubeProgrammer.
The "line number" value was confusing because it is incorrect here;
the index in part_array[] is not aligned with the line number in
the parsed Layout file, because the empty lines and the lines beginning
by '#' are skipped during the first parsing in parse_flash_layout().
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Marek Vasut [Thu, 30 Dec 2021 22:46:47 +0000 (23:46 +0100)]
ARM: dts: stm32: Synchronize DHCOM DTs with Linux 5.15.12
Synchronize DH DHCOM DTs with Linux commit 25960cafa06e ("Linux 5.15.12").
There is no functional change to the resulting DTs. The eeprom0 alias and
PHY reset GPIO are now reinstated in SoM u-boot dtsi.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Marek Vasut [Thu, 30 Dec 2021 22:46:46 +0000 (23:46 +0100)]
ARM: dts: stm32: Synchronize DHCOR DTs with Linux 5.15.12
Synchronize DH DHCOR DTs with Linux commit 25960cafa06e ("Linux 5.15.12").
There is no functional change to the resulting DTs. The eeprom0 alias is
now reinstated in SoM u-boot dtsi, the PHY reset GPIO is reinstated in AV96
u-boot dtsi.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Patrick Delaunay [Fri, 17 Dec 2021 15:30:22 +0000 (16:30 +0100)]
arm: dts: stm32mp15: alignment with v5.16
Device tree alignment with Linux kernel v5.16-rc5
- ARM: dts: stm32: set otg-rev on stm32mp151
- ARM: dts: stm32: use usbphyc ck_usbo_48m as USBH OHCI clock on stm32mp151
- ARM: dts: stm32: fix AV96 board SAI2 pin muxing on stm32mp15
- ARM: dts: stm32: fix SAI sub nodes register range
- ARM: dts: stm32: fix STUSB1600 Type-C irq level on stm32mp15xx-dkx
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Today the bootcount is not managed by the Linux kernel for STM32MP15 as
we don't have driver to update the used backup register in TAMP and the
recovery command still executes the normal bootcmd with
'altbootcmd=run bootcmd'.
So the bootcount feature is never used, the config CONFIG_BOOTCOUNT_LIMIT
and the associated environment variable 'altbootcmd' can be removed to
reduce the U-Boot size.
Each boards can re-enable this feature later in their defconfig, if it is
needed, with the expected backend, for example CONFIG_BOOTCOUNT_GENERIC
or CONFIG_BOOTCOUNT_ENV.
CC: Marek Vasut <marex@denx.de> Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Marek Vasut [Mon, 6 Dec 2021 20:58:09 +0000 (21:58 +0100)]
ARM: dts: stm32: Add DFU support for DHCOR recovery
This patch configures U-Boot SPL for DHCOR SoM to permit DFU upload of
SPL and subsequent u-boot.itb for recovery or commissioning purposes.
To start U-Boot on DHCOR based board, e.g. Avenger96, proceed as follows:
- Install dfu-util on the host PC (in debian this is package 'dfu-util')
- Power off the Avenger96 board.
- Connect both USB-serial console and USB-OTG microB ports to host PC.
- Switch Avenger96 to USB boot mode -- BOOT0..2 switches all set to 0.
- Power on the Avenger96 board.
- Verify using '$ dmesg' that a new device has been detected as follows:
New USB device found, idVendor=0483, idProduct=df11, bcdDevice= 2.00
New USB device strings: Mfr=1, Product=2, SerialNumber=3
Product: DFU in HS Mode @Device ID /0x500, @Revision ID /0x0000
Manufacturer: STMicroelectronics
- Upload U-Boot SPL:
$ dfu-util -a 1 -D u-boot-spl.stm32
- Upload U-Boot proper:
$ dfu-util -a 0 -D u-boot.itb
- At this point, SPL will wait for user to press "Ctrl-C" on serial
console. When ready to interact with U-Boot, press Ctrl-C to start
the bootloader.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Marek Vasut [Mon, 6 Dec 2021 20:58:08 +0000 (21:58 +0100)]
arm: stm32mp: Fix USB boot device report
In case the SoC reports the boot device type is USB, it means the SPL was
loaded via BootROM DFU mode. Currently the spl_boot_device() returns boot
device as USB host, change it to DFU instead, so the SPL can continue the
DFU boot and load U-Boot via DFU.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Adam Ford [Tue, 11 Jan 2022 13:21:06 +0000 (07:21 -0600)]
arm: dts: rz-g2-beacon-u-boot: Enable pinmux for QSPI
When booting from QSPI, the boot ROM appears to mux the QSPI
pins, but it's not guaranteed to be setup when booting from
eMMC. Fix this by explicitly configuring the pinmux.
This converts the following to Kconfig:
CONFIG_AT91_EFLASH
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Roese <sr@denx.de> Acked-by: Eugen Hristev <eugen.hristev@microchip.com>
configs: Migrate CONFIG_SYS_MAX_FLASH_BANKS to Kconfig
Use moveconfig.py script to convert define CONFIG_SYS_MAX_FLASH_BANKS
and CONFIG_SYS_MAX_FLASH_BANKS_DETECT to Kconfig and move these entries
to defconfigs.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Roese <sr@denx.de>
[trini: Re-switch to IS_ENABLED check in spi-nor-core.c, re-run migration] Signed-off-by: Tom Rini <trini@konsulko.com>
mtd: cfi: change CONFIG_SYS_MAX_FLASH_BANKS_DETECT as boolean
Prepare migration to Kconfig.
CONFIG_SYS_MAX_FLASH_BANKS_DETECT becomes boolean and
CONFIG_SYS_MAX_FLASH_BANKS define the MAX size, also used
for detection when CONFIG_SYS_MAX_FLASH_BANKS_DETECT=y
(CFI_MAX_FLASH_BANKS = CONFIG_SYS_MAX_FLASH_BANKS).
CONFIG_SYS_MAX_FLASH_BANKS become mandatory when
CONFIG_SYS_MAX_FLASH_BANKS_DETECT is activated.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Stefan Roese <sr@denx.de>
Replace CONFIG_SYS_MAX_FLASH_BANKS by CFI_FLASH_BANKS to prepare
Kconfig migration and avoid to redefine CONFIG_SYS_MAX_FLASH_BANKS
in cfi_flash.h.
After this patch CONFIG_SYS_MAX_FLASH_BANKS should be never used in
the cfi code: use CFI_MAX_FLASH_BANKS for struct size or CFI_FLASH_BANKS
for number of CFI banks which can be dynamic.
This patch modify all the files which include mtd/cfi_flash.h.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Stefan Roese <sr@denx.de>
spl: Convert SYS_MMCSD_RAW_MODE_KERNEL_SECTOR to Kconfig
Falcon mode is very useful in improving boot speed. A question that
Falcon mode asks is "Where do I look for the kernel". With MMC boot
media, the correct answer is CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR.
The scope of this patch is to move this to Kconfig.
It is possible for a system to support Falcon mode from NOR but not
MMC. In that case, mmc_load_image_raw_os() would not be used. To
address this, conditionally compile mmc_load_image_raw_os() when
SPL_FALCON_BOOT_MMCSD, instead of SPL_OS_BOOT.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Move spl_start_uboot to its own guard in spl_mmc.c, rerun migration] Signed-off-by: Tom Rini <trini@konsulko.com>
- fdt_support: Add fdt_for_each_node_by_compatible() helper macro
(Marek)
- turris_omnia: Fixup SATA or PCIe nodes at runtime in DT blob (Pali)
- pci_mvebu: Add support for Kirkwood PCIe controllers (Pali)
- SPL: More verifications for kwbimage in SPL (Pali)
- mvebu: Remove comphy_update_map() (Pali)
- Minor misc stuff
Tom Rini [Thu, 20 Jan 2022 14:40:04 +0000 (09:40 -0500)]
Merge tag 'u-boot-amlogic-20220120' of https://source.denx.de/u-boot/custodians/u-boot-amlogic
- Disable CONFIG_NET_RANDOM_ETHADDR for android configs
- meson64_android: define raw parts for bootloader to permit flashing with fastboot
- vim3: configure serial# from ethaddr to permit using fastboot like sei510/610
Pali Rohár [Tue, 18 Jan 2022 09:43:23 +0000 (10:43 +0100)]
arm: a37xx: Disable CONFIG_DEBUG_UART_ANNOUNCE
After next branch was merged to v2022.01 release, U-Boot on A3720 started
printing "<debug_uart>" line on UART during booting. There is no need to
print this debug line by default, so disable it via config option
CONFIG_DEBUG_UART_ANNOUNCE in all config files for Armada 3720 boards.
Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
Pali Rohár [Tue, 18 Jan 2022 09:33:19 +0000 (10:33 +0100)]
arm: mvebu: turris_mox: Convert comphy_update_map() to board_fix_fdt()
Code in board_fix_fdt() already detects connected MOX modules so there is
no need to have custom comphy_update_map() function for setting serdes
speeds.
This change sets phy-mode for MOX SFP module (when present) to sgmii.
Comphy driver then sets sgmii serdes speed for this module to 1.25G.
Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
Placing Unicode control codes <U+0080><U+0093> in the middle of a comment
does not make much sense. Let's get rid of all Unicode in
drivers/ram/octeon/octeon3_lmc.c.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Stefan Roese <sr@denx.de>
Pali Rohár [Fri, 14 Jan 2022 13:31:41 +0000 (14:31 +0100)]
arm: mvebu: Check for kwbimage data checksum
Last 4 bytes of kwbimage boot image is checksum. Verify it via the new
spl_check_board_image() function which is called by U-Boot SPL after
loading kwbimage.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de>
Pali Rohár [Fri, 14 Jan 2022 13:31:40 +0000 (14:31 +0100)]
SPL: Add support for checking board / BootROM specific image types
Commit 9baab60b8054 ("SPL: Add support for parsing board / BootROM specific
image types") added support for loading board specific image types.
This commit adds support for a new weak function spl_parse_board_header()
which is called after loading boot image. Board may implement this function
for checking if loaded board specific image is valid.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de>
Pali Rohár [Fri, 14 Jan 2022 13:31:38 +0000 (14:31 +0100)]
SPL: Add struct spl_boot_device parameter into spl_parse_board_header()
Add parameter spl_boot_device to spl_parse_board_header(), which allows
the implementations to see from which device we are booting and do
boot-device-specific checks of the image header.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de>
Pali Rohár [Thu, 13 Jan 2022 13:28:04 +0000 (14:28 +0100)]
pci: pci_mvebu: Add support for Kirkwood PCIe controllers
Kirkwood uses macros KW_DEFADR_PCI_MEM and KW_DEFADR_PCI_IO for base
address of PCIe mappings. Size of PCIe windows is not defined in any macro
yet, so export them in new KW_DEFADR_PCI_MEM_SIZE and KW_DEFADR_PCI_IO_SIZE
macros.
Kirkwood arch code already maps mbus windows for io and mem, so avoid
calling mvebu_mbus_add_window_by_id() function which would try to do
duplicate window mapping.
Kirkwood PCIe controllers already use "marvell,kirkwood-pcie" DT compatible
string, so mark pci_mvebu.c driver as compatible for it.
Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
Pali Rohár [Mon, 10 Jan 2022 10:47:18 +0000 (11:47 +0100)]
arm: mvebu: turris_omnia: Fixup SATA or PCIe nodes at runtime in DT blob
On of the MiniPCIe ports on Turris Omnia is also a mSATA port. Whether
it works in SATA or PCIe mode is determined by a strapping pin, which
value is read from the MCU.
We already determine which type of card is connected when configuring
SerDeses.
But until now we left both SATA and PCIe port 0 nodes in device tree
enabled, and so the SATA driver is probed in U-Boot / Linux even if we
know there is no mSATA card, and similarly PCIe driver tries to link on
port 0 even if we know there is mSATA card, not a PCIe card.
Fixup device tree blob to disable SATA node if mSATA card is not
present, and to disable PCIe port 0 node if mSATA card is present.
Do this for U-Boot's DT blob before relocation and also for kernel DT
blob before booting.
This ensures that software does not try to use SATA or PCIe HW when
corresponding PHY is not configured.
Signed-off-by: Pali Rohár <pali@kernel.org>
[ refactored and fixed some issues ] Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de>
Add macro fdt_for_each_node_by_compatible() to allow iterating over
fdt nodes by compatible string.
Convert various usages of
off = fdt_node_offset_by_compatible(fdt, start, compat);
while (off > 0) {
code();
off = fdt_node_offset_by_compatible(fdt, off, compat);
}
and similar, to
fdt_for_each_node_by_compatible(off, fdt, start, compat)
code();
Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Ilias Apalodimas [Wed, 19 Jan 2022 11:54:41 +0000 (13:54 +0200)]
lib/crypto: Enable more algorithms in cert verification
Right now the code explicitly limits us to sha1,256 hashes with RSA2048
encryption. But the limitation is artificial since U-Boot supports
a wider range of algorithms.
The internal image_get_[checksum|crypto]_algo() functions expect an
argument in the format of <checksum>,<crypto>. So let's remove the size
checking and create the needed string on the fly in order to support
more hash/signing combinations.