As explained by Wolfgang, historically PowerPC would do a number of
things to hand-optimize placement of the binary on NOR flash in order to
maximize utilization of very scarce resources. These days, we simply
aren't optimizing our binary layout for NOR flash placement and it's
quite likely this wasn't working as intended. Furthermore, this level
of optimization makes it difficult to have version_string be a global,
instead of a weak and overridden value, and so make more progress on
reproducible builds, which is a current concern.
Move to having PowerPC no longer store version_string in the early part
of text so that it might be part of the first page of NOR and instead
use the same declaration everyone else does.
Link: https://lore.kernel.org/r/96716.1629798400@gemini.denx.de/
Signed-off-by: Tom Rini <trini@konsulko.com>
There is no need to overload version_string at the end of start.S files.
Common implementation of version_string should be fine.
Signed-off-by: Pali Rohár <pali@kernel.org>
[trini: Keep the align, it's important for the rest of linkage]
Signed-off-by: Tom Rini <trini@konsulko.com>
Currently, there is no ENTRY() entry in the m68k linker script.
However, since they currently contain a version_string symbol, which
then overrides the default weak version_string symbol, the linker
decides we must keep start.o in the resulting link. Add an ENTRY() line
so that the linker will know to keep this, even when version_string is
no longer provided in start.S
Cc: Huan Wang <alison.wang@nxp.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Tom Rini <trini@konsulko.com>
It is useful to map a file into memory so that it can be accessed using
simple pointers. Add a function to support this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a function to return the size of a file. This is useful in situations
where we need to allocate memory for it before reading it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
This board has not been converted to CONFIG_DM_PCI by the deadline.
Remove it.
Note that we have to add CONFIG_SPIFLASH to scripts/config_whitelist.txt
because it's not really migrated at this point.
Acked-by: Michael Durrant <mdurrant@arcturusnetworks.com>
Acked-by: Oleksandr Zhadan <oleks@arcturusnetworks.com>
Acked-by: Oleksandr Zhadan and Michael Durrant <arcsupport@arcturusnetworks.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Handle CONFIG_SPIFLASH differently and delete Kconfig file]
Signed-off-by: Tom Rini <trini@konsulko.com>
In the cdns3 usb driver, the clock name looked for is ref. Therefore, fix
the clock-names property in usb0 instance for proper initialization of
cdns3 usb gadget driver.
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
As per Device Tree Specification [1], the status parameter of nodes can
be "okay", "disabled", etc. "ok" is not a valid parameter.
U-boot Driver Model does not recognize status="ok" either and treats
the node as disabled.
[1] https://github.com/devicetree-org/devicetree-specification/releases/tag/v0.3
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
Add u-boot,dm-spl tag in the pinmux device tree node, required for MMCSD1
subsystem.
Fixes: b6059ddc45 ("arm: dts: k3-am642: Add r5 specific dt support")
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
USB nodes were mistakenly disabled in
commit 942853dd96 ("arm: dts: Resync BeagleBone device trees")
This commit is to fix the following issue:
starting USB...
No working controllers found
USB is stopped. Please issue 'usb start' first.
starting USB...
No working controllers found
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0782e8572ce43f521ed6ff15e4a7ab9aa5acdc85
Fixes: 942853dd96 ("arm: dts: Resync BeagleBone device trees")
Signed-off-by: Matwey V. Kornilov <matwey.kornilov@gmail.com>
Reviewed-by: Paul Barker <paul.barker@sancloud.com>
Since mvpp2 is using the new mdio driver and the cp110 has been
synced with the linux upstream, the mdio has to enabled in the
device tree file.
This is missing for some device tree files and therefore the
network cards do not come online.
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Reviewed-by: Stefan Roese <sr@denx.de>
SHA512_ALGO was used as a "either SHA512 or SHA384", although the
implementations of these two algorithms share a majority of code.
From a Kconfig interface perspective, it makes sense to present two
distinct options. This requires #ifdefing out the SHA512
implementation from sha512.c. The latter doesn't make any sense.
It's reasonable to say in Kconfig that SHA384 depends on SHA512, and
seems to be the more polite way to handle the selection.
Thus, automatically select SHA512 when SHA384 is enabled.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
With the exceptions of ds109, ds414, icnova-a20-swac, nokia_rx51 and
stemmy, disable ATAG support. A large number of platforms had enabled
support but never supported a kernel so old as to require it. Further,
some platforms are old enough to support both, but are well supported by
devicetree booting, and have been for a number of years. This is
because some of the ATAGs related functions have been re-used to provide
the same kind of information, but for devicetree or just generally to
inform the user. When needed still, rename these functions to
get_board_revision() instead, to avoid conflicts. In other cases, these
functions were simply unused, so drop them.
Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Phil Sutter <phil@nwl.cc>
Cc: Stefan Bosch <stefan_b@posteo.net>
Signed-off-by: Tom Rini <trini@konsulko.com>
No iMX platforms have supported ATAG-based booting. They have however
re-used the CONFIG_SERIAL_TAG option as a way to enable support of
reading the OTP fuses and setting the serial# environment variable in
some cases. Change the warp7 support to use this symbol, use this for
updating the rest of the imx7 code, and update the imx8 conditionals.
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP i.MX U-Boot Team <uboot-imx@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
We usually use a space in function declaration, rather than a tab.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Invokes the common cache_init function to initialize ccache.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
The enable_caches is a generic hook for architecture-implemented, we
define this function to enable composable cache of sifive platforms.
In sifive_cache, it invokes the generic cache_enable interface of cache
uclass to execute the relative implementation in SiFive ccache driver.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
The enable_caches is a generic hook for architecture-implemented, we
leverage this function to enable caches for RISC-V
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
To make analyzing exceptions easier output the code that leads to it.
We already do the same on the ARM platform.
Here is an example:
=> exception ebreak
Unhandled exception: Breakpoint
EPC: 000000008ff5d50e RA: 000000008ff5d62c TVAL: 0000000000000000
EPC: 000000008020b50e RA: 000000008020b62c reloc adjusted
Code: 2785 0693 07a0 dce3 fef6 47a5 d563 00e7 (9002)
To disassemble the code we can use the decodecode script:
$ echo 'Code: 2785 0693 07a0 dce3 fef6 47a5 d563 00e7 (9002)' | \
CROSS_COMPILE=riscv64-linux-gnu- scripts/decodecode
Code: 2785 0693 07a0 dce3 fef6 47a5 d563 00e7 (9002)
All code
========
0: 2785 addiw a5,a5,1
2: 07a00693 li a3,122
6: fef6dce3 bge a3,a5,0xfffffffffffffffe
a: 47a5 li a5,9
c: 00e7d563 bge a5,a4,0x16
10:* 9002 ebreak <-- trapping instruction
...
Code starting with the faulting instruction
===========================================
0: 9002 ebreak
...
As it is not always clear if the first 16 bits are at the start or in the
middle of a 32bit instruction it may become necessary to strip the first
u16 from the output before calling decodecode to get the correct
disassembled code.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
When booting in EFI, lib/efi_loader/efi_memory.c calls
board_get_usable_ram_top(0) which returns by default
gd->ram_base + gd->ram_size which is the top of DDR.
In case of OPTEE boot, the top of DDR is currently reserved by OPTEE,
board_get_usable_ram_top(0) must return an address outside OPTEE
reserved memory.
gd->ram_top matches this constraint as it has already been initialized
by substracting all DT reserved-memory (included OPTEE memory area).
Fixes: 92b611e8b0 ("stm32mp: correctly handle board_get_usable_ram_top(0)")
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Rename these options so that CONFIG_IS_ENABLED can be used with them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[trini: Fixup some incorrect renames]
Signed-off-by: Tom Rini <trini@konsulko.com>
Per a request from Andre Przywara and agreed with by Peter Hoyes, the
vexpress aemv8r support wasn't quite ready to be merged, but the
discussion had moved off list. We should keep the first patch in the
series for now, but revert the rest. This reverts the following
commits:
e0bd6f31ce doc: Add documentation for the Arm vexpress board configs
30e5a449e8 arm: Use armv8_switch_to_el1 env to switch to EL1
b53bbca63b vexpress64: Add BASER_FVP vexpress board variant
2f5b7b7490 armv8: Add ARMv8 MPU configuration logic
37a757e227 armv8: Ensure EL1&0 VMSA is enabled
Signed-off-by: Tom Rini <trini@konsulko.com>
The prototype of psci_features() duplicated. Remove extra declaration.
Fixed: e21e3ffdd1 ("psci: Fix warnings when compiling with W=1")
Reported-by: Michael Scott <mike@foundries.io>
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
For ARMv8-A, NEON is standard, so the compiler can use it even when no
special target flags are provided. For example, it can use stores from
NEON registers to zero-initialize large structures. GCC 11 decides to
do this inside the DRAM init code for the Allwinner H6.
However, GCC 11 has a bug where it generates misaligned NEON register
stores even with -mstrict-align. Since the MMU is not enabled this early
in SPL, the misaligned store causes an exception and breaks booting.
Work around this issue by restricting the compiler to using GPRs only,
not vector registers. This prevents any future surprises relating to
NEON use as well.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Use the environment variable armv8_switch_to_el1 to determine whether
to switch to EL1 at runtime. This is an alternative to the
CONFIG_ARMV8_SWITCH_TO_EL1 compile-time option.
The environment variable will be ineffective if the ARMV8_MULTIENTRY
config is used.
This is required by the Armv8r64 architecture, which must be able to
boot at S-EL1 for Linux but may need to boot at other ELs for other
systems.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
The BASER_FVP board variant is implemented on top of the BASE_FVP board
config (which, in turn, is based on the Juno Versatile Express board
config). They all share a similar memory map - for BASER_FVP the map is
inverted from the BASE_FVP
(https://developer.arm.com/documentation/100964/1114/Base-Platform/Base---memory/BaseR-Platform-memory-map)
* Create new TARGET_VEXPRESS64_BASER_FVP target, which uses the same
board config as BASE_FVP and JUNO
* Adapt vexpress_aemv8a.h header file to support BASER_FVP (and rename
to vexpress_aemv8.h)
* Enable config to switch to EL1 for the BASER_FVP
* Create vexpress_aemv8r defconfig
* Provide an MPU memory map for the BASER_FVP
For now, only single core boot is supported.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
[trini: Add MAINTAINERS, move BOOTCOMMAND to defconfig]
Signed-off-by: Tom Rini <trini@konsulko.com>
Armv8r64 is the first Armv8 platform that only has a PMSA at the
current exception level. The architecture supplement for Armv8r64
describes new fields in ID_AA64MMFR0_EL1 which can be used to detect
whether a VMSA or PMSA is present. These fields are RES0 on Armv8a.
Add logic to read these fields and, for the protection of the memory
used by U-Boot, initialize the MPU instead of the MMU during init, then
clear the MPU regions before transition to the next stage.
Provide a default (blank) MPU memory map, which can be overridden by
board configurations.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
On Armv8-R, the EL1&0 memory system architecture is configurable as a
VMSA or PMSA, and resets to an "architecturally unknown" value.
Add code to armv8_switch_to_el1_m which detects whether the MSA at
EL1&0 is configurable using the id_aa64mmfr0_el1 register MSA fields.
If it is we must ensure the VMSA is enabled so that a rich OS can boot.
The MSA and MSA_FRAC fields are described in the Armv8-R architecture
profile supplement (section G1.3.7):
https://developer.arm.com/documentation/ddi0600/latest/
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
The use of ARMv8.3 pointer authentication (PAuth) is governed by fields
in HCR_EL2, which trigger a 'trap to EL2' if not enabled. The reset
value of these fields is 'architecturally unknown' so we must ensure
that the fields are enabled (to disable the traps) if we are entering
the kernel at EL1.
The APK field disables PAuth instruction traps and the API field
disables PAuth register traps
Add code to disable the traps in armv8_switch_to_el1_m. Prior to doing
so, it checks fields in the ID_AA64ISAR1_EL1 register to ensure pointer
authentication is supported by the hardware.
The runtime checks require a second temporary register, so add this to
the EL1 transition macro signature and update 2 call sites.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
The logic in msm_generate_mac_addr() was originally taken from the LK
bootloader where the serial number is a string and must be parsed first.
However, in U-Boot msm_board_serial() returns an u32 and
msm_generate_mac_addr() has quite complicated code that will first
print it as a hex string and then immediately parse it again.
What this function actually does at the end is to put the serial number
encoded as big endian (the order used for the hex string) into the u8 *mac.
Use put_unaligned_be32() to do that with bit shifts instead of going
through the string format.
This should be slightly more efficient and cleaner but does not result
in any functional difference.
Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
At the moment U-Boot produces an empty MAC address (02:00:00:00:00:00)
if the eMMC is not used by anything in U-Boot (e.g. with
CONFIG_ENV_IS_NOWHERE=y instead of having the environment on eMMC).
This happens because then there is nothing that actually initializes
the eMMC and reads the "cid" that is later accessed.
To fix this, call mmc_init() to ensure the eMMC is initialized.
There is no functional difference if the eMMC is already initialized
since then mmc_init() will just return without doing anything.
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
A U-Boot image could be loaded and executed at a different
location than it was linked at.
For example, Aspeed takes a stable release version of U-Boot image
as the golden one for recovery purposes. When the primary storage
such as flash is corrupted, the golden image would be loaded to any
SRAM/DRAM address on demands through ethernet/UART/etc and run for
rescue.
To deal with this condition, the PIE is needed as there is only one
signed, golden image, which could be however executed at different
places.
This patch adds the PIE support for ARMv7 platform.
Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Enabling CONFIG_SYS_THUMB_BUILD produces a significantly smaller
U-Boot binary (250 KiB vs 320 KiB) that still seems to be fully
functional. Make use of that by default but keep it as "imply" so it
can be disabled for testing in case this causes trouble for someone.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Over the time, the "stemmy" U-Boot board was tested on several other
Samsung smartphones based on ST-Ericsson NovaThor Ux500. Convert the
documentation to reStructuredText at doc/board/ste/stemmy.rst and
make the device list complete. Also note that the board now boots
into USB Fastboot instead of just ending up at the U-Boot prompt.
The device table is mostly taken from the postmarketOS wiki article
(https://wiki.postmarketos.org/wiki/ST-Ericsson_NovaThor_U8500).
All the newly added devices were tested by Linus Walleij.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Make use of the new drivers for ARM U8500 introduced in the U-Boot
2021.10 merge window by adding basic support for USB Fastboot with
the "stemmy" board. As a first step this will always boot directly
into USB Fastboot for now with the console displayed on the screen
to make that obvious.
Samsung uses quite strange GPT partition labels on these boards,
so also add a bunch of fastboot_partition_alias_* to make this more
easy to use.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
So far there is no need for a clock driver in U-Boot because the
previous boot stage leaves all the necessary clocks on. However,
some drivers in U-Boot (e.g. arm_pl180_mmci) depend on having a clock
driver to obtain the clock frequency.
Setting up the clock drivers properly is a bit tricky on U8500,
so for now add a simple fixed-clock for the eMMC that allows obtaining
the clock frequency. This should be replaced eventually if some board
actually requires enabling some of the clocks.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Update ste-dbx5x0.dtsi, ste-ab8500.dtsi and ste-ab8505.dtsi with
the changes made in upstream Linux. They are taken from
https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git/
branch "ux500-dts-for-v5.15" (pending merge for Linux 5.15).
The only relevant change for U-Boot here is
"ARM: dts: ux500: ab8500: Link USB PHY to USB controller node" [1]
which links the USB PHY to the USB controller. This is necessary on
U-Boot because the PHY driver is implemented as part of the generic
PHY subsystem that makes use of these bindings.
[1]: https://lore.kernel.org/linux-arm-kernel/20210709182234.47232-1-stephan@gerhold.net/
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Imply the options for new drivers added for ARM U8500 during the
U-Boot 2021.10 merge window. Adding these as "imply" in the Kconfig
avoids having to add them to all the board defconfigs but still allows
disabling them if wanted.
Also select DM_USB_GADGET if DM_USB is selected because otherwise
the Ux500 MUSB glue driver does not show up in the configuration.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
