Commit graph

74427 commits

Author SHA1 Message Date
Patrick Delaunay
3da2552a22 stm32mp: cmd_stm32key: lock of PKH OTP after fuse
Lock the OTP value of key's hash after the command
$> stm32key fuse <address>

This operation forbids a second update of these OTP as they are
ECC protected in BSEC: any update of these OTP with a different value
causes a BSEC disturb error and the closed chip will be bricked.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-07-16 09:28:46 +02:00
Patrick Delaunay
fe24090eb7 stm32mp: cmd_stm32key: handle error in fuse_hash_value
Handle errors in fuse_hash_value function.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-07-16 09:28:46 +02:00
Patrick Delaunay
bc78d5f25a stm32mp: cmd_stm32key: use sub command
Simplify parsing the command argument by using
the macro U_BOOT_CMD_WITH_SUBCMDS.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-07-16 09:28:46 +02:00
Patrick Delaunay
3a99481159 stm32mp: configs: activate the command stm32key only for ST boards
This command is used to evaluate the secure boot on stm32mp SOC,
it is deactivated by default in real products.

We activate this command only in STMicroelectronics defconfig
used with the evaluation boards.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-07-16 09:28:46 +02:00
Patrick Delaunay
edca8c3f8e stm32mp: stm32prog: fix the content of short help message
Reduce the content of short help message for stm32prog command and
removed the carriage return to fix the display of 'help' command when
this command is activated.

Fixes: 954bd1a923 ("stm32mp: add the command stm32prog")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-07-16 09:28:46 +02:00
Patrick Delaunay
918609ccfa configs: stm32mp1: remove splashimage and add fdtoverlay_addr_r
Add the variable used by PXE command for fdtoverlays support
since the commit 69076dff22 ("cmd: pxe: add support for FDT overlays").

Reused the unused "splashimage" address as CONFIG_SPLASH_SOURCE and
CONFIG_VIDEO_LOGO are not activated and U-Boot display the "BACKGROUND"
image found in extlinux.conf to manage splashscreen on stm32mp1 boards.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-07-16 09:28:46 +02:00
Max Yang
92cf458f8a rtc: m41t62: fix wrong register use for set/reset ST bit
Fix wrong register use when set/reset ST bit.
ST bit is in register M41T62_REG_SEC not in M41T62_REG_ALARM_HOUR.

I have not actually tested this. But this seemed buggy from inspection.

Fixes: 9bbe210512 ("rtc: m41t62: add oscillator fail bit reset support")
Signed-off-by: Max Yang <max.yang@deltaww.com>
2021-07-15 19:06:49 -04:00
Stephan Gerhold
bc599042d4 image: android: Automatically detect more compression types
At the moment android_image_get_kcomp() can automatically detect
LZ4 compressed kernels and the compression specified in uImages.
However, especially on ARM64 Linux is often compressed with GZIP.
Attempting to boot an Android image with a GZIP compressed kernel
image currently results in a very strange crash, e.g.

  Starting kernel ...
  "Synchronous Abort" handler, esr 0x02000000
   ...
  Code: 5555d555 55555d55 555f5555 5d555d55 (00088b1f)

Note the 1f8b, which are the "magic" bytes for GZIP images.

U-Boot already has the image_decomp_type() function that checks for
the magic bytes of bzip2, gzip, lzma and lzo. It's easy to make use
of it here to increase the chance that we do the right thing and the
user does not become confused with strange crashes.

This allows booting Android boot images that contain GZIP-compressed
kernel images.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-07-15 19:06:49 -04:00
Marek Vasut
4c531d9f58 fit: Load DTO into temporary buffer and ignore load address
The current fitImage DTO implementation expects each fitImage image
subnode containing DTO to have 'load' property, pointing somewhere
into memory where the DTO will be loaded. The address in the 'load'
property must be different then the base DT load address and there
must be sufficient amount of space between those two addresses.
Selecting and using such hard-coded addresses is fragile, error
prone and difficult to port even across devices with the same SoC
and different DRAM sizes.

The DTO cannot be applied in-place because fdt_overlay_apply_verbose()
modifies the DTO when applying it onto the base DT, so if the DTO was
used in place within the fitImage, call to fdt_overlay_apply_verbose()
would corrupt the fitImage.

Instead of copying the DTO to a specific hard-coded load address,
allocate a buffer, copy the DTO into that buffer, apply the DTO onto
the base DT, and free the buffer.

The upside of this approach is that it is no longer necessary to
select and hard-code specific DTO load address into the DTO. The
slight downside is the new malloc()/free() overhead for each DTO,
but that is negligible (*).

(*) on iMX8MM/MN and STM32MP1

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Add <linux/sizes.h>]
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-07-15 19:06:37 -04:00
Rasmus Villemoes
23b542aa3f lib/vsprintf.c: remove unused ip6_addr_string()
There's currently no user of %p[iI]6, so including ip6_addr_string()
in the image is a waste of bytes. It's easy enough to have the
compiler elide it without removing the code completely.

The closest I can find to anybody "handling" ipv6 in U-Boot currently
is in efi_net.c which does

        if (ipv6) {
                ret = EFI_UNSUPPORTED;

As indicated in the comment, it can easily be put back, but preferably
under a config knob.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-07-15 18:44:36 -04:00
Rasmus Villemoes
ce452157e6 lib/vsprintf.c: remove stale comment
U-Boot doesn't support %pS/%pF or any other kind of kallsyms-like
lookups. Remove the comment.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-07-15 18:44:36 -04:00
Rasmus Villemoes
9758778646 lib/vsprintf.c: implement printf() in terms of vprintf()
This saves some code, both in terms of #LOC and .text size, and it is
also the normal convention that foo(...) is implemented in terms of
vfoo().

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-07-15 18:44:36 -04:00
Simon Glass
92f1e9a4b3 clk: Detect failure to set defaults
When the default clocks cannot be set, the clock is silently probed and
the error is ignored. This is incorrect, since having the clocks at the
correct speed may be important for operation of the system.

Fix it by checking the return code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-15 18:42:40 -04:00
Simon Glass
9a72bea6cb sandbox: Silence coverity warning in state_read_file()
In this case the value seems save to pass to os_free(). Add a comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 165109)
2021-07-15 18:42:05 -04:00
Simon Glass
fdfae3727c tpm: Check outgoing command size
In tpm_sendrecv_command() the command buffer is passed in. If a mistake is
somehow made in setting this up, the size could be out of range. Add a
sanity check for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 331152)
2021-07-15 18:42:05 -04:00
Simon Glass
4d159b6f84 pinctrl: Avoid coverity warning when checking width
The width is set up in single_of_to_plat() and can only have three values,
all of which result in a non-zero divisor. Add a comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 331154)
2021-07-15 18:42:05 -04:00
Simon Glass
99eaf1fcaa cbfs: Check offset range when reading a file
Add a check that the offset is within the allowed range.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 331155)
2021-07-15 18:42:05 -04:00
Simon Glass
15dd815c75 sandbox: cros_ec: Update error handling when reading matrix
At present the return value of ofnode_get_property() is not checked, which
causes a coverity warning. While we are here, use logging for the errors.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 331157)
2021-07-15 18:42:05 -04:00
Simon Glass
9dec2c1f03 dm: core: Check uclass_get() return value when dumping
Update dm_dump_drivers() to use the return value from uclass_get() to
check the validity of uc. This is equivalent and should be more attractive
to Coverity.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 316601)
2021-07-15 18:42:05 -04:00
Simon Glass
37e79ee0e8 reset: Avoid a warning in devm_regmap_init()
The devres_alloc() function is intended to avoid the need for freeing
memory, although in practice it may not be enabled, thus leading to a true
leak.

Nevertheless this is intended. Add a comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 312951)
2021-07-15 18:42:05 -04:00
Simon Glass
ca4c24509c reset: Avoid a warning in devm_reset_bulk_get_by_node()
The devres_alloc() function is intended to avoid the need for freeing
memory, although in practice it may not be enabled, thus leading to a true
leak.

Nevertheless this is intended. Add a comment to explain this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 312952)
2021-07-15 18:42:05 -04:00
Simon Glass
7f0f4e1825 tools: Avoid showing return value of clock_gettime()
This value is either 0 for success or -1 for error. Coverity reports that
"ret" is passed to a parameter that cannot be negative, pointing to the
condition 'if (ret < 0)'.

Adjust it to just check for non-zero and avoid showing -1 in the error
message, which is pointless. Perhaps these changes will molify Coverity.

Reported-by: Coverity (CID: 312956)
Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-15 18:42:05 -04:00
Simon Glass
ff0494c120 test: Rename final check in setexpr_test_backref()
The bug in setexpr is fixed now, so this test can be enabled.

Reported-by: Coverity (CID: 316346)

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-15 18:42:05 -04:00
Simon Glass
92598bdbae video: Check return value in pwm_backlight_of_to_plat()
This cannot actually fail, but check the value anyway to keep coverity
happy.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 316351)
2021-07-15 18:42:05 -04:00
Simon Glass
9d9bec216d sandbox: net: Ensure host name is always a valid string
At present if ifname is exactly IFNAMSIZ characters then it will result
in an unterminated string. Fix this by using strlcpy() instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 316358)
Acked-by: Ramon Fried <rfried.dev@gmail.com>
2021-07-15 18:42:05 -04:00
Tom Rini
d3fc3da9a4 Merge https://source.denx.de/u-boot/custodians/u-boot-x86
- x86: various improvements made in getting Chromium OS verified boot
  running on top of coreboot, booting into U-Boot.
2021-07-15 11:06:24 -04:00
Pali Rohár
652982309d Nokia RX-51: Add check for /lib/ld-linux.so.2 in test script
Unfortunately for testing is required qflasher which works only in 32-bit
x86 mode. Apparently 64-bit x86 Azure CI has no problems as it has
preinstalled 32-bit libraries and can execute also 32-bit x86 executables.

This change just show human readable output why nokia_rx51_test.sh test
script fails.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210618133108.32497-1-pali@kernel.org
2021-07-15 17:56:05 +05:30
Pali Rohár
f75b7b82a3 Nokia RX-51: Load bootmenu also from uSD card
By default bootmenu is loaded only from eMMC. After this change U-Boot
first tries to load bootmenu from uSD card and if it fails then fallback to
eMMC. People want to boot alternative OS from removable uSD without need to
modify eMMC content. So this backward compatible change allows it.

Part of this change is also optimization of trymmc* macros so they can be
used in preboot macro for loading bootmenu.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210618132704.32066-2-pali@kernel.org
2021-07-15 17:56:05 +05:30
Pali Rohár
cc434fccba Nokia RX-51: Add support for booting kernel in zImage format
Enable U-Boot bootz command and update env scripts to try loading also
zImage file and to try booting via bootz command.

Update also lowlevel_init.S code for checking validity of zImage magic to
correctly relocate kernel in zImage format.

This change allows U-Boot to directly boot Linux kernel without need for
converting kernel image into U-Boot uImage format.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210618132704.32066-1-pali@kernel.org
2021-07-15 17:56:04 +05:30
Gowtham Tammana
149389424f configs: j7200_evm_r5_defconfig: Enable AVS, PMIC and dependent configs
Enable AVS, PMIC and dependent configs.

Signed-off-by: Gowtham Tammana <g-tammana@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210714205300.17424-6-g-tammana@ti.com
2021-07-15 17:56:04 +05:30
Gowtham Tammana
2094e70692 arm/dts: k3-j7200-r5-common: Hook buck1_reg to vtm supply
Hook buck1_reg to vtm avs supply.

Signed-off-by: Gowtham Tammana <g-tammana@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210714205300.17424-5-g-tammana@ti.com
2021-07-15 17:56:04 +05:30
Gowtham Tammana
fcdf03aab9 arm/dts: k3-j7200-r5-common: Add VTM node
Add voltage and thermal management (VTM) node. The efuse values for the
OPPs are stored under the VTM, and is needed for AVS class 0 support.

Signed-off-by: Gowtham Tammana <g-tammana@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210714205300.17424-4-g-tammana@ti.com
2021-07-15 17:56:04 +05:30
Gowtham Tammana
6fb8706bcb arm/dts: k3-j7200-r5-common: Add pmic lp876441 node
Add pmic lp876411 node needed for CPU AVS support.

Signed-off-by: Gowtham Tammana <g-tammana@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210714205300.17424-3-g-tammana@ti.com
2021-07-15 17:56:04 +05:30
Gowtham Tammana
6fdbd2b093 power: pmic: tps65941: Add compatible for LP876441
TI J7200 EVM has lp876441 pmic that is similar to tps65941. Add support
for same with existing driver with new compatible.

Signed-off-by: Gowtham Tammana <g-tammana@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Link: https://lore.kernel.org/r/20210714205300.17424-2-g-tammana@ti.com
2021-07-15 17:56:04 +05:30
Tom Rini
bde6ac5490 configs: am65x_evm: Switch envboot out for distro_bootcmd
Swap out the TI-centric "envboot" logic for the generic distro_bootcmd
logic for the bootcmd we run before trying to do something more complex
involving additional firmware, etc.

Cc: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210713141139.15183-1-trini@konsulko.com
2021-07-15 17:56:04 +05:30
Tom Rini
5230625854 arm: omap4: Disable USB_TTY and related options
The usbtty functionality is not currently used on these two platforms,
disable it.

Cc: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210708014348.4010-1-trini@konsulko.com
2021-07-15 17:56:04 +05:30
Tom Rini
7a376302f5 configs: j721e_evm: Switch envboot out for distro_bootcmd
Swap out the TI-centric "envboot" logic for the generic distro_bootcmd
logic for the bootcmd we run before trying to do something more complex
involving additional firmware, etc.

Cc: Lokesh Vutla <lokeshvutla@ti.com> (maintainer:J721E BOARD)
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210701142743.26190-1-trini@konsulko.com
2021-07-15 17:56:04 +05:30
Tom Rini
5fb3e09d97 ti: omap5: Switch to generic distro boot for non-Android cases
Remove the environment support for various legacy boot methods.  With
this, we will now default to booting any distribution that follows the
generic distro boot framework and no longer attempt to boot various
legacy (to this SoC) scripts/etc.  Note that if we do not find anything
here we will continue to try and Android methods and will start by
trying fastboot.

Cc: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210701132612.7559-3-trini@konsulko.com
2021-07-15 17:56:04 +05:30
Tom Rini
8e94e7b32e arm: ti: environment: Move <environment/ti/boot.h> in to <configs/ti_omap5_common.h>
This include file is only used by ti_omap5_common.h.  Further, the move
is towards using the generic distro boot framework and not this set of
macros.  Start by moving all of the contents in directly to where they
are used.

Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210701132612.7559-2-trini@konsulko.com
2021-07-15 17:56:04 +05:30
Tom Rini
e0c91ae24e ti: am43xx_evm: Switch to DISTRO_BOOT only
Remove the environment support for various legacy boot methods.  With
this, we will now default to booting any distribution that follows the
generic distro boot framework and no longer attempt to boot various
legacy (to this SoC) scripts/etc.

Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210701132612.7559-1-trini@konsulko.com
2021-07-15 17:56:04 +05:30
Adam Ford
8cc8c41bc5 configs: am3517_evm: Fix boot hang
SPL is really tight on space, so decrease a little memory that we
allocate in order to fix boot hang.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Tested-by: Derald D. Woods <woods.technical@gmail.com>
Link: https://lore.kernel.org/r/20210626134258.601331-1-aford173@gmail.com
2021-07-15 17:56:04 +05:30
Adam Ford
4f9b15eac1 arm: omap3: Make secure_unlock_mem() static
secure_unlock_mem() is only used in one file, so make it static
in that file.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210625192308.277136-4-aford173@gmail.com
2021-07-15 17:56:04 +05:30
Adam Ford
46bf58d9f6 arm: omap3: Make secureworld_exit() static
secureworld_exit() is only used in one file, so make it static
to that file and remove it from sys_proto.h. This
may help with some further optimization in the future.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210625192308.277136-3-aford173@gmail.com
2021-07-15 17:56:04 +05:30
Adam Ford
1ddd0ed34a arm: omap3: Make try_unlock_memory() static
try_unlock_memory() is only used in one file, so make it static
in that file,remove it from the sys_proto header file, and relocate
it into the #ifdef section that call it. This will make it only built
under the conditions when it is called, and it may help with some
further optimization in the future.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210625192308.277136-2-aford173@gmail.com
2021-07-15 17:56:04 +05:30
Adam Ford
81b98c6627 configs: omap3x_logic: Fix boot hang by reducing SYS_MALLOC_F_LEN
The AM3517 uses SYS_MALLOC_F_LEN of size 0x3000, but the rest of
the OMAP3 boards from LogicPD / BeaconEmbedded use 0x4000, but
they don't boot SPL.

Reduce the malloc size to restore booting.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210625185717.243211-1-aford173@gmail.com
2021-07-15 17:56:04 +05:30
Gowtham Tammana
ba7455a796 arm: mach-k3: am642_init: Add missing ddr guard
The `struct udevice *` reference is needed for either of the
K3_LOAD_SYSFW, K3_AM64_DDRSS config guards. Adding the missing
K3_AM64_DDRSS guard.

Signed-off-by: Gowtham Tammana <g-tammana@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210624171614.14244-1-g-tammana@ti.com
2021-07-15 17:56:04 +05:30
Lokesh Vutla
d3ece2bcae configs: am65x_evm_a53: Enable PRUSS remoteproc
Enable PRUSS remoteproc driver for AM65

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210622063431.3151-6-lokeshvutla@ti.com
2021-07-15 17:56:04 +05:30
Lokesh Vutla
c81e7f8d17 arm: dts: ti: k3-am65-main: Add ICSSG nodes
Add the DT nodes for the ICSSG0, ICSSG1 and ICSSG2 processor subsystems
that are present on the K3 AM65x SoCs. The three ICSSGs are identical
to each other for the most part, with the ICSSG2 supporting slightly
enhanced features for supporting SGMII PRU Ethernet. Each ICSSG instance
is represented by a PRUSS subsystem node. These nodes are enabled by
default.

DT nodes are fetch from Linux 5.13 Kernel.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210622063431.3151-5-lokeshvutla@ti.com
2021-07-15 17:56:04 +05:30
Lokesh Vutla
654b60a8fd arm: dts: k3-am654-base-board: Add r5 specific u-boot dtsi
So far all the u-boot specific properties for both r5 and a53 are
placed in k3-am654-base-board-u-boot.dtsi. But there are few a53
nodes that should be updated but doesn't belong to r5. So create a
separate r5 specific u-boot dtsi.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210622063431.3151-4-lokeshvutla@ti.com
2021-07-15 17:56:04 +05:30
Keerthy
02bfcc5c3a remoteproc: pru: Add support for various PRU cores on K3 AM65x SoCs
The K3 AM65x family of SoCs have the next generation of the PRU-ICSS
processor subsystem, commonly referred to as ICSSG. Each ICSSG processor
subsystem on AM65x SR1.0 contains two primary PRU cores and two new
auxiliary PRU cores called RTUs. The AM65x SR2.0 SoCs have a revised
ICSSG IP that is based off the subsequent IP revision used on J721E
SoCs. This IP instance has two new custom auxiliary PRU cores called
Transmit PRUs (Tx_PRUs) in addition to the existing PRUs and RTUs.

Each RTU and Tx_PRU cores have their own dedicated IRAM (smaller than
a PRU), Control and debug feature sets, but is different in terms of
sub-modules integrated around it and does not have the full capabilities
associated with a PRU core. The RTU core is typically used to aid a
PRU core in accelerating data transfers, while the Tx_PRU cores is
normally used to control the TX L2 FIFO if enabled in Ethernet
applications. Both can also be used to run independent applications.
The RTU and Tx_PRU cores though share the same Data RAMs as the PRU
cores, so the memories have to be partitioned carefully between different
applications. The new cores also support a new sub-module called Task
Manager to support two different context thread executions.
The driver currently supports the AM65xx SoC

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210622063431.3151-3-lokeshvutla@ti.com
2021-07-15 17:56:04 +05:30