Commit graph

75228 commits

Author SHA1 Message Date
Simon Glass
3e57ad907c irq: Tidy up of-platdata irq support
This function is available but not exported. More generally it does not
really work as intended.

Reimplement it and add a sandbox test too.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
f521be6083 dm: doc: Add a note about of-platdata header files
This error can be confusing so mention it specifically in the
documentation.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
f0ab8f9fbe clk: Rename clk_get_by_driver_info()
This is actually a misnomer now, since the phandle info may contain
a driver_info index or a udevice index. Rename it to use the word
'phandle', which seems more accurate. Add a comment while we are here.

Also add a test for this function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
4ee0cc89db dm: Add comments to dt-structs contents
These structs do not have comments at present. Add them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
f99cbe4e86 fdt: Update Makefile rules with the new OF_REAL Kconfig
Simplify some of the Makefile rules using this Kconfig.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
dcfc42b12f treewide: Try to avoid the preprocessor with OF_REAL
Convert some of these occurences to C code, where it is easy to do. This
should help encourage this approach to be used in new code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
62470afed1 mmc: nds32: ftsdc010: Convert to livetree
Use the livetree API for this driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-09-25 09:46:15 -06:00
Simon Glass
9539738509 treewide: Use OF_REAL instead of !OF_PLATDATA
Now that we have a 'positive' Kconfig option, use this instead of the
negative one, which is harder to understand.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
414cc15144 treewide: Simply conditions with the new OF_REAL
Use this new Kconfig to simplify the compilation conditions where
appropriate.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
eaad01a3d0 fdt: Create a new OF_REAL Kconfig
The condition to indicate whether there is a runtime devicetree available
is OF_CONTROL && !OF_PLATDATA. This is a bit unweidly and is repeated in
a lot of places.

Add a new OF_REAL Kconfig which provides this information directly.

Note: This is similar in effect to LIBFDT. We might consider dropping
LIBFDT and using this instead, but this is left for now as we also have
OF_LIBFDT_OVERLAY which it would not make sense to change.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
7de8bd03c3 treewide: fdt: Move fdt_get_config_... to ofnode_conf_read...
The current API is outdated as it requires a devicetree pointer.

Move these functions to use the ofnode API and update this globally. Add
some tests while we are here.

Correct the call in exynos_dsim_config_parse_dt() which is obviously
wrong.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Tom Rini
bb38d77ca7 vexpress_ca9x4: Add missing SYS_LOAD_ADDR
- Add missing CONFIG_SYS_LOAD_ADDR based on other platforms
- Resync

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-24 22:12:35 -04:00
Tom Rini
bf0491f8d8 Merge branch '2021-09-24-assorted-updates' into next
- A few minor updates
2021-09-24 20:35:50 -04:00
Jorge Ramirez-Ortiz
cc5afabc9d drivers: tpm2: update reset gpio semantics
Use the more generic reset-gpios property name.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2021-09-24 14:36:50 -04:00
Kristian Amlie
8a0f5f6e70 Avoid polluting CONFIG_ namespace with board specific define.
Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
Reviewed-by: Tom Rini <trini@konsulko.com>
2021-09-24 14:30:46 -04:00
Paul Barker
0d60e5d8e9 tools: Handle PAGER containing arguments
When printing full help output from a tool, we should be able to handle
a PAGER variable which includes arguments, e.g. PAGER='less -F'.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
2021-09-24 14:30:46 -04:00
Paul Barker
5fe50f9a40 tools: Refactor full help printing
Collect the code for printing the full help message of patman, buildman
and binman into a single function in patman.tools.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
2021-09-24 14:30:46 -04:00
Kristian Amlie
15e30106ce ARM: vexpress_ca9x4: Reintroduce board in order to use with QEMU.
vexpress_ca9x4 is seemingly the only board except for qemu_arm which
is able to run U-Boot correctly, using the `-M vexpress-a9` option to
QEMU. Building for qemu_arm and running qemu-system-arm with the `-M
virt` argument has a number of downsides, most importantly that it
only supports virtio storage drivers. This significantly reduces its
usefulness in testing memory card and Flash solutions, especially when
the tested images are from a third party source.

So therefore we reintroduce the vexpress_ca9x4 board in this commit,
with the explicit goal of using it with QEMU.

A number of differences to note from the original:

* Since the board was apparently unmaintained, I have now set myself
  as the maintainer.

* The board has been converted to use the driver model, which was the
  reason it was removed in the first place.

* The vexpress_ca15_tc2 and vexpress_ca5x2 boards, which were removed
  in the same commit, are not necessary for the QEMU use case, and
  have been omitted.

* An `mmc0` alias was introduced in the dts file. The mmc is not
  detected correctly without this, now that it's based on the device
  tree instead of the board's init function.

* A couple of other nodes were removed because they were problematic
  when trying to run the UEFI bootmgr. Once again, the primary use
  case here is QEMU, and these nodes are not needed for that to work.

* Unnecessary board init code has been removed, thanks to driver model
  and device tree.

* `CONFIG_OF_EMBED` has been enabled. I know this goes against
  recommended practice, but there doesn't seem to be any other way to
  pass the dtb to U-Boot in the QEMU scenario. Using the -dtb argument
  does not work, I suppose because U-Boot doesn't use the same
  mechanics as the kernel when it's booting.

* Load addresses have been changed to fit QEMU use case.

People wanting to get a more detailed, yet somewhat isolated, diff
between this and the original, can run this command:

  git diff c6c26a05b89f25a06e7562f8c2071b60fd0c9eac~1 -- \
      $( git diff-tree --diff-filter=A -r --name-only HEAD~1 HEAD)

(Make sure to either check out this commit first, or replace HEAD with
the commit ID of this commit)

Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
2021-09-24 14:30:46 -04:00
Patrick Delaunay
6493fa4c3d arm: use CONFIG_SUPPORT_PASSING_ATAGS
Simplify the bootm and the spl code by using the new config
CONFIG_SUPPORT_PASSING_ATAGS.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2021-09-24 14:30:46 -04:00
Tom Rini
7d1fcaea12 Merge branch '2021-09-24-arm64-optimized-str-funcs' into next
- Bring in, but disable by default, asm optimized string functions for
  arm64.
2021-09-24 10:13:44 -04:00
Stefan Roese
4e062fc955 arm64: Kconfig: Enable usage of optimized memset/memcpy/memmove
This patch enables the use of the optimized memset(), memmove() &
memcpy() versions recently added on ARM64.

Please note that these optimized functions are now only enabled for
recent GCC versions (>= 9.4), as earlier GCC versions throw these
errors:

aarch64-linux-ar: warning: arch/arm/lib/memset-arm64.o: unsupported GNU_PROPERTY_TYPE (5) type: 0xc0000000
...

Signed-off-by: Stefan Roese <sr@denx.de>
[trini: Make this default to off as it causes problems on some platforms still]
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-24 07:49:16 -04:00
Stefan Roese
1e43bb6732 arm64: memset-arm64: Use simple memset when cache is disabled
The optimized memset uses the dc opcode, which causes problems when the
cache is disabled. This patch adds a check if the cache is disabled and
uses a very simple memset implementation in this case. Otherwise the
optimized version is used.

Signed-off-by: Stefan Roese <sr@denx.de>
2021-09-24 07:48:06 -04:00
Stefan Roese
dbf6b14e0a arm64: arch/arm/lib: Add optimized memset/memcpy/memmove functions
Ported from https://github.com/ARM-software/optimized-routines

These files are included from this repository, including the latest
git commit ID:
string/aarch64/memcpy.S: afd6244a1f8d
string/aarch64/memset.S: e823e3abf5f8
string/asmdefs.h: e823e3abf5f8

Note that memmove is also handled by the memcpy function.

Please note that when adding these optimized functions as default memset
memcpy functions in U-Boot, U-Boot fails to boot on the LX2160ARDB.
After the initial ATF output, no U-Boot output is shown on the serial
console. Some exception is triggered here in the very early boot process
as some of the assembler opcodes need the caches to be enabled.

Because of this, a follow-up patch will add a check to use a simple
non-optimized memset for the "cache disabled" case.

Note:
I also integrated and tested with the Linux versions of these optimized
functions. They are similar to the ones now integrated but these ARM
versions are still a small bit faster.

Signed-off-by: Stefan Roese <sr@denx.de>
2021-09-24 07:48:06 -04:00
Tom Rini
2c14ff5879 Revert "env: Make _init() expect _INVALID when _IS_NOWHERE"
Upon further discussion, this is not required now.

This reverts commit f6bc5d17af.

Link: https://lore.kernel.org/r/ebd92337-669a-9a0a-0af3-d06b957f3b40@denx.de/
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-24 07:43:22 -04:00
Tom Rini
657668348b Merge branch '2021-09-23-assorted-updates' into next
- Rework lmb reservation so we have common code for all arches to use
- armv8 cache.S cleanups, crc32 speedup
- ENV_IS_NOWHWERE, pci io/memory base configuration fixes
2021-09-23 22:38:21 -04:00
Pali Rohár
8e85f36a8f pci: Fix configuring io/memory base and limit registers of PCI bridges
Lower 4 bits of PCI_MEMORY_BASE and PCI_MEMORY_LIMIT registers are reserved
and should be zero. So do not set them to non-zero value.

Lower 4 bits of PCI_PREF_MEMORY_BASE and PCI_PREF_MEMORY_LIMIT registers
contain information if 64-bit memory addressing is supported. So preserve
this information when overwriting these registers.

Lower 4 bits of PCI_IO_BASE and PCI_IO_LIMIT register contain information
if 32-bit io addressing is supported. So preserve this information and do
not try to configure 32-bit io addressing (via PCI_IO_BASE_UPPER16 and
PCI_IO_LIMIT_UPPER16 registers) when it is unsupported.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2021-09-23 14:15:32 -04:00
Guillaume La Roque
df3ab898f6 arm: mediatek: merge board Kconfigs into mach-mediatek
On MediaTek boards we cannot override the SYS_BOARD / SYS_CONFIG_NAME
variables from defconfig.
This is because in board/mediatek/mtXXXX/Kconfig this value was override
by default due to the if CONFIG_TARGET_MTXXXX condition.

Merge all the Kconfigs to the mach-medatek/Kconfig.

This way:
- we only define SYS_{SOC,VENDOR} once
- all board definitions are in a single place, simplifying the build logic.

Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
a69753f31d lmb: x86: Add arch_lmb_reserve()
Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic().
It is rather likely this architecture also needs to cover U-Boot with
LMB before booting Linux.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
7996b7e9f5 lmb: xtensa: Add arch_lmb_reserve()
Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic().
It is rather likely this architecture also needs to cover U-Boot with
LMB before booting Linux.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
1e0e557774 lmb: sh: Add arch_lmb_reserve()
Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic().
This architecture also needs to cover U-Boot with LMB before booting
Linux.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
eeaa3fe652 lmb: riscv: Add arch_lmb_reserve()
Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic().
It is rather likely this architecture also needs to cover U-Boot with
LMB before booting Linux.

Reviewed-by: Rick Chen <rick@andestech.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Leo <ycliang@andestech.com>
Cc: Rick Chen <rick@andestech.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
6a0890a61e lmb: nds32: Add arch_lmb_reserve()
Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic().
It is rather likely this architecture also needs to cover U-Boot with
LMB before booting Linux.

Reviewed-by: Rick Chen <rick@andestech.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Rick Chen <rick@andestech.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
a02c18f31f lmb: nios2: Add arch_lmb_reserve()
Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic().
It is rather likely this architecture also needs to cover U-Boot with
LMB before booting Linux.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Thomas Chou <thomas@wytron.com.tw>
Cc: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
c16de86ec0 lmb: Remove imx board_lmb_reserve()
This function is clearly architecture specific code, not board specific
code. The only difference from the previous arm arch_lmb_reserve() is the
extra reservation of 16k of memory below the stack bottom, rather than
the 4k. The common code now also uses 16k alignment. Remove this custom
implementation, as it now behaves exactly as the common code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Ye Li <ye.li@nxp.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
b1d0487cfe lmb: arm: Increase LMB alignment to 16k in arch_lmb_reserve_generic()
According to input NXP, the 4k alignment is not always sufficient.
Currently iMX works around this problem by implementing board specific
LMB reservation, however it is likely this could also occur on other
systems. Increase the LMB reservation alignment to 16k by default.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Ye Li <ye.li@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
1f391c3454 lmb: Switch to generic arch_lmb_reserve_generic()
Switch arc/arm/m68k/microblaze/mips/ppc arch_lmb_reserve() to
arch_lmb_reserve_generic().

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
2021-09-23 14:15:32 -04:00
Marek Vasut
1274698d13 lmb: Add generic arch_lmb_reserve_generic()
The arc/arm/m68k/microblaze/mips/ppc arch_lmb_reserve() implementations
are all mostly the same, except for a couple of details. Implement a
generic arch_lmb_reserve_generic() function which can be parametrized
enough to cater for those differences between architectures. This can
also be parametrized enough so it can handle cases where U-Boot is not
relocated to the end of DRAM e.g. because there is some other reserved
memory past U-Boot (e.g. unmovable firmware for coprocessor), it is not
relocated at all, and other such use cases.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
cfa1971977 lmb: Always compile arch_lmb_reserve() into U-Boot on arc
The arch_lmb_reserve() is called by lib/lmb.c lmb_reserve_common() even
if CMD_BOOTM is not enabled. However, the arc variant of arch_lmb_reserve()
is only compiled in if CMD_BOOTM is enabled.

This currently does not trigger build error, because there is an empty
weak implementation of arch_lmb_reserve(), however that is not the
function that should be used on arc.

Fix this by moving the arch_lmb_reserve() implementation into common
code and always compile it in.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
8120e0681c lmb: Always compile arch_lmb_reserve() into U-Boot on arm
The arch_lmb_reserve() is called by lib/lmb.c lmb_reserve_common() even
if CMD_BOOT{I,M,Z} is not enabled. However, the arm32/arm64 variant of
arch_lmb_reserve() is only compiled in if CMD_BOOT{I,M,Z} is enabled.

This currently does not trigger build error, because there is an empty
weak implementation of arch_lmb_reserve(), however that is not the
function that should be used on arm32/arm64.

Fix this by moving the arch_lmb_reserve() implementation into common
code and always compile it in.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Artem Lapkin
2ddb8fcd2e image: add lz4 zstd compression magic map
Add lz4 and zstd compression magic map. Already can decompress images
with lz4 and zstd compression type.

Signed-off-by: Artem Lapkin <art@khadas.com>
2021-09-23 14:15:32 -04:00
Marek Vasut
270f8710f9 crc32: Add crc32 implementation using __builtin_aarch64_crc32b
ARMv8.0 has optional crc32 instruction for crc32 calculation. The
instruction is mandatory since ARMv8.1. The crc32 calculation is
faster using the dedicated instruction, e.g. 1.4 GHz iMX8MN gives:

  => time crc32 0x50000000 0x2000000
  time: 0.126 seconds # crc32 instruction
  time: 0.213 seconds # software crc32

Add implementation using the compiler builtin wrapper for the crc32
instruction and enable it by default, since we don't support any
platforms which do not implement this instruction.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
[trini: Make crc32_table guarded by CONFIG_ARM64_CRC32]
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-23 14:15:32 -04:00
Pierre-Clément Tosi
37479e65a3 armv8/cache.S: Triple with single instruction
Replace the current 2-instruction 2-step tripling code by a
corresponding single instruction leveraging ARMv8-A's "flexible second
operand as a register with optional shift". This has the added benefit
(albeit arguably negligible) of reducing the final code size.

Fix the comment as the tripled cache level is placed in x12, not x0.

Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
2021-09-23 08:55:06 -04:00
Pierre-Clément Tosi
f050bfacc5 armv8/cache.S: Read sysreg fields through ubfx
Improve the file's readability and conciseness by using the appropriate
Aarch64 instruction: ubfx (unsigned bitfield extract). This makes the
code easier to follow as it directly manipulates the offsets and widths
of the fields read from system registers, as they are expressed in the
Standard (ARM ARM). This has the added benefit (albeit arguably
negligible) of reducing the final code size.

Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
2021-09-23 08:55:06 -04:00
Pierre-Clément Tosi
f6bc5d17af env: Make _init() expect _INVALID when _IS_NOWHERE
Avoid applying the "fix" introduced by commit 5557eec01c ("env: Fix
invalid env handling in env_init()") to the environment "nowhere".

This is necessary as that commit, by setting the return value of
env_init() to -ENOENT if gd->env_valid is ENV_INVALID, forces that
function to reset gd->env_valid to ENV_VALID. By doing so, it breaks the
assumption (required by ENV_IS_NOWHERE) that gd->env_valid must be
ENV_INVALID.

This, in turn, results in env_relocate() calling env_load() (it should
not), which itself, calls U_BOOT_ENV_LOCATION(nowhere).load() i.e.
env_nowhere_load(). That function, being implemented under the
assumption mentioned above, calls env_set_default(), which in turn,
seeing that gd->env_valid is ENV_VALID (it should not), tries to
dereference whatever lies in gd->env_addr (most likely garbage), leading
to a faulty memory access.

Note that other env_locations might be concerned by this bug but that
this commit only intends to fix it for when ENV_IS_NOWHERE.

Fixes: 5557eec01c ("env: Fix invalid env handling in env_init()")
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
2021-09-23 08:55:06 -04:00
Tom Rini
7b57e56739 First set of u-boot-at91 features for the 2022.01 cycle
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Merge tag 'u-boot-at91-2022.01-a' of https://source.denx.de/u-boot/custodians/u-boot-at91 into next

First set of u-boot-at91 features for the 2022.01 cycle:

This feature set includes : the support for CPU driver for arm926
(sam9x60 device); changes required for OP-TEE boot for sama5d2_xplained
and sama5d27_som1_ek boards; QSPI boot configuration for sama5d2_icp;
starting to remove old Kconfig unused symbols from config_whitelist.txt
(work will take more time); also small fixes and updates in mach, DT,
configs, etc.
2021-09-22 21:17:39 -04:00
Tom Rini
63823da4b9 Merge branch '2021-09-22-general-updates' into next
- Some sandbox improvements
- Make cleanups related to the overusage of the exact build time
  variable.
2021-09-22 14:54:21 -04:00
Eugen Hristev
d65b84a1d0 ARM: dts: at91: update flexcom defines using include file
Replace the number in the flexcom-mode property with the define from the
include file.
This corresponds to the approach in Linux kernel.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
2021-09-21 10:08:24 +03:00
Eugen Hristev
0d58dafd64 include: dt-bindings: mfd: add atmel flexcom include file
Add dt-bindings include file for Atmel Flexcom hardware block.
This file is copied from Linux kernel.
It is used in devicetrees from Linux.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
2021-09-21 10:08:24 +03:00
Eugen Hristev
0c66872f99 net: remove unused CONFIG_DRIVER_AT91EMAC_*
AT91EMAC driver is unused, thus removing.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-21 10:08:24 +03:00
Eugen Hristev
a6bbb8b596 ARM: at91: remove references to RM9200DK
The AT91 RM9200DK board was removed long time ago.
Remove existing references that were not cleaned up.

Fixes: 1c85752258 ("ARM: remove broken "at91rm9200dk" board")
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
2021-09-21 10:08:24 +03:00