Commit Graph

182 Commits

Author SHA1 Message Date
Pascal Paillet ea552bf5a5 feat(stpmic1): add new services
Add support for ICC, sink mode, bypass mode,
active discharge and list voltages.
Handle LDO3 sink source mode in a different way to avoid
setting voltage while in sink source mode.

Change-Id: Ib1b909fd8a153f542917f650e43e24317a570534
Signed-off-by: Pascal Paillet <p.paillet@st.com>
2021-12-22 14:04:32 +01:00
Etienne Carriere 13fbfe046e feat(stpmic1): add USB OTG regulators
Add regulators boost, pwr_sw1 and pwr_sw2 regulators related to
USB OTG supply BOOST, SW_OTG and SWIN/SWOUT. These regulators are
needed since manipulated during the suspend/resume power sequence
as per FDT description for stm32mp15x-xxx boards from
STMicroelectronics.

Change-Id: I6217de707e49882bd5a9100db43e0d354908800d
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2021-12-22 14:04:32 +01:00
Nicolas Le Bayon c77c7d9e30 refactor(st-pmic): improve driver usage
Store status of dt_pmic_status() as local static variable,
this avoids parsing DT several times.
In the same way, store nodes in dt_pmic_i2c_config() and
in dt_get_pmic_node() as local static variables.

Change-Id: I4585e9dfdde2847a369bffcc6f2b39ecc2b74de1
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2021-12-22 14:04:32 +01:00
Nicolas Le Bayon 16e56a75de refactor(stpmic1): set stpmic1_is_regulator_enabled() as boolean
Improve use and readability.

Change-Id: Ia99fc38287f36c9dd12bfe51352afa5da68c0e47
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2021-12-22 14:04:32 +01:00
Yann Gautier 33667d299b feat(st): use newly introduced clock framework
Replace calls to stm32mp_clk_enable() / stm32mp_clk_disable() /
stm32mp_clk_get_rate() with clk_enable() / clk_disable() /
clk_get_rate().

Change-Id: I15d2ce57b9499211fa522a1b53eeee9cf584c111
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
2021-12-22 13:08:09 +01:00
Yann Gautier 737ad29bf9 feat(stm32_gpio): add a function to reset a pin
Add set_gpio_reset_cfg() to set a pin in its reset configuration:
analog, no-pull, speed low, and its secure configuration, thanks to
stm32_gpio_is_secure_at_reset().

Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I7b73c3636859f97fcc57f81cf68b42efc727922e
2021-12-14 09:25:19 +01:00
Manish Pandey be1d8b24f5 Merge "feat(stm32mp1): preserve the PLL4 settings for USB boot" into integration 2021-12-10 14:19:15 +01:00
Nicolas Le Bayon 165ad5561e feat(drivers/st/uart): add uart driver for STM32MP1
Add a UART/USART driver for STM32 with complete a hardware support;
it used for STM32CubeProgrammer support with even parity.

This driver is not used for console, which is already handle
by a simple driver (drivers/st/uart/aarch32/stm32_console.S).

Change-Id: Ia9266e5d177fe7fd09c8a15b81da1a05b1bc8b2d
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2021-12-03 09:26:11 +01:00
Patrick Delaunay bf1af154db feat(stm32mp1): preserve the PLL4 settings for USB boot
The PLL4 can be used by ROM code as the source clock of USB PHYC and,
in this case, the PLL4 configuration must be preserved
with pll4_preserve to avoid USB disturbance.

This patch also adds an error when the clock tree PLL4 configuration
is not the PLL4 configuration used by ROM code; this error allows to
detect a invalid clock tree.

This commit corrects the coverity issue 343023.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Change-Id: I4bae9312a2db8dd342a38e649513d689b13976bb
2021-12-03 09:19:53 +01:00
Manish Pandey 4ef449c15a fix: use correct printf format for uint64_t
sha 4ce3e99a3 introduced printf format specifiers for fixed width
types, which uses PRI*64 instead of "ll" for 64 bit values.

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: Ic6811cc1788c698adde0807e5f8ab5290a900a26
2021-11-12 13:02:02 +00:00
Patrick Delaunay 9a138eb5f2 feat(drivers/st/usb): add device driver for STM32MP1
Add a device driver for Synopsis DWC2 USB IP of STM32MP15x,
this USB OTG device is only supported in device mode.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Change-Id: I90b21f094f6637b85f3ace23a3a3a2f6fd4e0951
2021-10-29 16:43:43 +02:00
Mark Dykes 3deb060015 Merge changes from topic "st_dt_match_instance" into integration
* changes:
  refactor(stm32_sdmmc2): use DT helpers
  feat(plat/st): create new helper for DT access
2021-10-15 20:53:01 +02:00
Pascal Paillet 0161991184 fix(stpmic1): fix power switches activation
Add enable bit mask description because power switches
are not all enabled by bit 0.

Signed-off-by: Pascal Paillet <p.paillet@st.com>
Change-Id: If7c9ae7d800adee8e25416ca35db1be20452741f
2021-10-06 11:09:21 +02:00
Yann Gautier ed6a852346 fix(stpmic1): update error cases return
Use errno values, or the return of called functions, instead of -1.
Correct some MISRA issues, like braces.

Change-Id: If7b53de5cbfb4d2c9979bce0e594dd92bf07a77a
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-10-06 11:09:21 +02:00
HE Shushan 5b111c7479 fix(stm32mp1_clk): keep RTC clock always on
On battery powered systems the RTC keeps the date/time across
system reboot.
The RTC clock should not be disabled otherwise the date/time
counter gets stopped.

Tag RTC clock as always on.

Signed-off-by: HE Shushan <shushan.he@st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Change-Id: I6455c3c740d2e5add28255eb84f8ebaf2870d9d8
2021-10-06 11:01:36 +02:00
Yann Gautier bff9e3ccc2 refactor(stm32_sdmmc2): use DT helpers
Use dt_match_instance_by_compatible() and dt_fill_device_info()
functions to simplify SDMMC driver code.

Change-Id: Id16aa849ac79a9d3c2dc72c947fe189743856292
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
2021-10-06 10:58:39 +02:00
Yann Gautier bf39318d93 fix(stm32mp1_clk): set other clocks as always on
AXI, MPU and MCU clocks are always on, put them in the list
in the function clock_is_always_on().

Change-Id: I969a442274d2da6c59636f3293de1c31b4c8e3b1
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-10-06 10:53:33 +02:00
Gabriel Fernandez 602ae2f23c fix(stm32mp1_clk): fix MPU clock rate
MPUDIV dividers are stored in a constant array, under bit shifts form.
They must be used in this way by the clock driver.

Change-Id: If758f7a4048eff956067a10a42ab0983a20a000d
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2021-10-06 10:53:33 +02:00
Etienne Carriere b8fe48b6f2 fix(stm32mp1_clk): fix MCU/AXI parent clock
Correct MCU clock parent selector: MCU subsystem clock is derived
from clock  PLL3_P, not PLL3.

Correct AXI clock parent selector: AXI subsystem clock is derived
from clock  PLL2_P, not PLL2.

This change also renames MCU clock and AXI clock resources to
prevent confusion.

Change-Id: If55618d180e7dce8e4f0977b0e586a6fa8ef28d1
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2021-10-06 10:53:33 +02:00
Yann Gautier ba57711c38 refactor(stm32mp_clk): keep RCC node offset
To avoid parsing device tree file too often, keep the RCC node
offset value in a variable in fdt_get_rcc_node().

Change-Id: Ibb23ff92247d57c65a23517b8f3473f639794d2a
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-10-06 10:53:33 +02:00
Manish Pandey 7feb435060 Merge "refactor(drivers/st/clk): change fdt_get_rcc_node as static" into integration 2021-10-04 14:15:41 +02:00
Patrick Delaunay ff18c4cde4 refactor(drivers/st/clk): change fdt_get_rcc_node as static
Change the fdt_get_rcc_node function to static, as it is used only in
stm32mp_clkfunc.c file; it is only a cleanup change without functional
modification.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Change-Id: Ib4ef110f6f1b16dbaa727a065e40275d3cf58a73
2021-09-22 15:39:12 +02:00
Yann Gautier 49c7f0cef4 fix(stm32_console): do not skip init for crash console
In BL32, only skip UART initialization if UART enable bit is set.
Due to patch [1], a reset of UART is done in crash console init.
In this case, UART should then be reconfigured.

[1] 7fa2e96e1 ("stm32mp1: add UART reset in crash console init")

Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I650d4c387b60dd74b780e6f3adfd629ea44f5834
2021-09-20 13:57:10 +02:00
Yann Gautier 288f5cf204 refactor(stm32mp1_clk): update RCC registers file
The file is first generated with the peripheral spirit XML file.
And then we add some common definition, to ease driver development.

Change-Id: I4c222cf006caf27cda6da044eaf184ce66bb1442
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
2021-09-17 15:39:32 +02:00
Lionel Debieve 373f06be4e fix(stm32mp1_clk): keep RTCAPB clock always on
Further information such as boot instance are sent over backup
registers. In order to guarantee direct access to backup registers
in uboot, we will keep the RTC clock enabled.

Change-Id: I16572d422bfebbf39190a87db8046df486ce91c8
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-09-17 15:39:32 +02:00
Gabriel Fernandez cbd2e8a6af fix(stm32mp1_clk): fix RTC clock rating
When RTC clock source is HSE, the RTCDIV is not taken into account.

Change-Id: I1613b638e8932c03f3349adb01e13f5294a3bf5d
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
2021-09-17 15:39:32 +02:00
Yann Gautier 15509093f0 fix(stm32mp1_clk): correctly manage RTC clock source
The clksrc value contains the RCC register address and the clock
source number. When applying the clock source, we should filter out
the RCC register address from the given value.

Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I4345b03de7b9afd1df78df4131431cf1eb43ec17
2021-09-17 15:39:32 +02:00
Nicolas Le Bayon a4bcfe94e7 fix(drivers/st/pmic): missing error check
In pmic_operate(), "regulators" node value must be checked before
entering in the fdt_for_each_subnode loop.

Change-Id: I1460cd24ec56ec47ab644f396b71b92973e75fb4
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-06-22 14:10:27 +02:00
Benjamin Gaignard 42822844bf fix(drivers/st/pmic): initialize i2c_state
Make sure that i2c->i2c_state is correctly initialized
with I2C_STATE_RESET value this avoid hi2c->lock to not
be set to 0 when calling stm32_i2c_init during platform
suspend/resume operations.

Change-Id: I3b4c1f9115589325eb256789a1764c322741db7d
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-06-22 14:10:27 +02:00
Yann Gautier 8f97c4fab1 fix(drivers/st/clk): use correct return value
The function stm32mp1_clk_init() returns an int. Return a negative
error value if the device tree is not found.

Change-Id: I422d5fea46c4d63d55a5b62e1db154c1f53f41b7
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-06-22 14:10:27 +02:00
Madhukar Pappireddy 7cfe5999be Merge changes from topic "io_stm32image" into integration
* changes:
  fix(io_stm32image): invalidate cache on local buf
  refactor(io_stm32image): add header size variable
  fix(io_stm32image): uninitialized variable warning
2021-06-18 15:40:20 +02:00
Yann Gautier a5bcf82402 fix(io_stm32image): invalidate cache on local buf
When retrieving data from stm32 image file, the header is removed with
a memcpy that shifts the data to overwrite the useless header for next
binary.

STM32 binary from boot device:
|-------------------------------------|
| header | payload                    |
|-------------------------------------|

After the memcpy:
|-------------------------------------|
| payload                    | remain |
|-------------------------------------|

But the remaining data after the shifted payload is still in
the cache. As it is of no use for anyone, just invalidate the cache
at this address.
This is required if the DDR is mapped secure in BL2, and the secure
access is forbidden in BL33, or else TZC-400 issues an error.

Change-Id: Ice2af3b1ca49eccb79bfc62db60437e259d344ca
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-06-04 15:15:18 +02:00
Yann Gautier b6561c1217 refactor(io_stm32image): add header size variable
A variable hdr_sz is created in stm32image_partition_read() function.
It just represents the size of the stm32 image header but it really
improves the readability of the function.

Change-Id: I95ec62a78a4b6c6a75b0d8c8aa0faef8bee424da
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-06-04 15:15:18 +02:00
Nicolas Le Bayon c1d732d0db fix(io_stm32image): uninitialized variable warning
Fixes implementation against build warning reported by GCC:

drivers/st/io/io_stm32image.c: In function ‘stm32image_partition_read’:
drivers/st/io/io_stm32image.c:249:6: error: ‘result’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
  int result;
      ^~~~~~

Actually, by construction the current implementation of function
stm32image_partition_read() does not mandate result to be initialized
since it always reaches the exit point with a valid value in 'result'.
Yet, this change prevents compiler from complaining and is more robust
against future changes in the implementation.

Change-Id: I383575edb605b7535398952a5fdfc266c0068c71
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-06-04 15:15:18 +02:00
Vyacheslav Yurkov f3d2750aa2 feat(drivers/st): manage boot part in io_mmc
Use dedicated read function for boot partition

Signed-off-by: Vyacheslav Yurkov <uvv.mail@gmail.com>
Change-Id: If75df7691fce0797205365736fc6e4e3429efdca
2021-06-04 10:08:39 +02:00
Yann Gautier 3ed016571a nand: stm32_fmc_nand: remove dead code
The FMC driver in TF-A only supports NAND Mode 0 timings.
The timings are then hard-coded as macros, leading to some parts of code
unreachable.
This issue was found by Coverity scan: CID 366361.

Change-Id: I864c51ce11b9ef74ad82b3301f56f46a2e0f70ca
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
2021-02-11 18:11:34 +01:00
Peng Fan b473430898 drivers: move scmi-msg out of st
Make the scmi-msg driver reused by others.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Change-Id: I5bc35fd4dab70f45c09b8aab65af4209cf23b124
2021-01-20 11:37:14 +08:00
Mark Dykes dfe577a817 Merge "Don't return error information from console_flush" into integration 2020-10-14 18:59:27 +00:00
Madhukar Pappireddy 80d9cf7808 Merge changes from topic "stm32mp1_plat_updates" into integration
* changes:
  docs: update STM32MP1 with versions details
  stm32mp1: get peripheral base address from a define
  stm32mp1: add finished good variant in board identifier
2020-10-13 15:46:35 +00:00
Yann Gautier ade9ce03b8 stm32mp1: get peripheral base address from a define
Retrieve peripheral base address from a define instead of
parsing the device tree. The goal is to improve execution time.

Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I2588c53ad3d4abcc3d7fe156458434a7940dd72b
2020-10-13 11:27:40 +02:00
Lionel Debieve 495885bce6 drivers: stm32_fmc2_nand: fix boundary check for chip select
Chip select is retrieved from device tree and check
must be done regarding the MAX_CS defined.

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Reviewed-by: Christophe KERELLO <christophe.kerello@st.com>
Change-Id: I03144b133bd51a845a4794f0f6bbd9402fc04936
2020-10-12 14:46:31 +02:00
Christophe Kerello 0c3e8acbd6 drivers: stm32_fmc2_nand: move to new bindings
FMC node bindings are modified to add EBI controller node.
FMC driver and associated device tree files are modified
to support these new bindings.

Change-Id: I4bf201e96a1aca20957e0dac3a3b87caadd05bdc
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
2020-10-12 14:46:07 +02:00
Jimmy Brisson 831b0e9824 Don't return error information from console_flush
And from crash_console_flush.

We ignore the error information return by console_flush in _every_
place where we call it, and casting the return type to void does not
work around the MISRA violation that this causes. Instead, we collect
the error information from the driver (to avoid changing that API), and
don't return it to the caller.

Change-Id: I1e35afe01764d5c8f0efd04f8949d333ffb688c1
Signed-off-by: Jimmy Brisson <jimmy.brisson@arm.com>
2020-10-09 10:21:50 -05:00
Lionel Debieve 44966000ec drivers: stm32_fmc2_nand: fix incorrect error detection
Clear interrupt flag register after each sector read to avoid
issue when checking the register status.
Without clearing the interrupt, the status read doesn't wait
properly the ready bit.

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Change-Id: If290e3f165b986f0e736bb1b5e4d3dad4b749d74
2020-10-08 09:42:04 +02:00
Etienne Carriere 1bb9072ab4 clk: stm32mp1: fix rcc mckprot status
MCKPROT hardening in RCC mandates that both bits RCC[TZEN] and
RCC[MCKPROT] are enabled. This change fixes stm32mp1_rcc_is_mckprot()
to check both bits, not RCC[MCKPROT] only.

This change also updates stm32mp1_rcc_is_secure() for consistency.

Change-Id: If1f07babdcb5677906ddbf974d9dc17255d4e174
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-09-24 09:32:23 +02:00
Yann Gautier 54019a35b8 mmc: st: clear some flags before sending a command
The ICR static flags are cleared before sending a command.
The SDMMC_DCTRLR register is set to 0 if no data is expected on a given
command or on the next command in case of CMD55.

Change-Id: I5ae172a484218f53160e98b3684967c6960475a6
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-09-24 09:32:23 +02:00
Yann Gautier 7d8e1218c2 mmc: st: correct retries management
The retries number should be 3.
A warning message is added in mmc_block_read(), and the code is refactored.

Change-Id: I577c7dd91c451c7580b1660042cb5fe26ee3fa12
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-09-24 09:32:23 +02:00
Yann Gautier 769a990428 gpio: stm32_gpio: check GPIO node status after checking DT
The call to fdt_get_status(node) has to be done after the DT is found
to be valid.

Fixes: 1fc2130c5 stm32mp1: update device tree and gpio functions

Change-Id: I70f803aae3dde128a9e740f54c8837b64cb1a244
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-09-24 09:30:44 +02:00
Lionel Debieve 662c1f5c17 crypto: stm32_hash: fix issue when restarting computation
While restarting a new hash computation, STR register
is not cleared. It needs to be written before each
computation.

Change-Id: If65902dd21f9c139ec5da3ca87721232f73710db
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-09-24 09:30:44 +02:00
Etienne Carriere 3d0d0a1b4c drivers/stm32_hash: register resources as secure or not
Register in the shared resources driver the secure or non-secure state
of the HASH instances. Note that only BL32 needs to register the
shared peripheral because BL2 does not embed the shared resources
driver.

Change-Id: I7f78fa8e47da71d48ef8b1dfe4d6f040fe918d8b
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-07-08 12:56:23 +02:00
Etienne Carriere 66de6f3c30 drivers/stm32_gpio: register GPIO resources as secure or not
Register in the shared resources driver the secure or non-secure state
of the GPIO pins.

Change-Id: Ifda473bcbbb0af799be6587961d6641edf887605
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-07-08 12:56:20 +02:00
Etienne Carriere bcc360f7e0 drivers/stm32_iwdg: register IWDG resources as secure or not
Register in the shared resources driver the secure or non-secure state
of the IWDG instances.

Change-Id: I3a3bc9525447f6a2a465891ca3a3fd5fe664ca07
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-07-08 12:56:17 +02:00
Etienne Carriere f564d439a9 drivers/stm32mp_pmic: register PMIC resources as secure or not
Register in the shared resources driver the secure or non-secure
state of the PMIC.

Change-Id: Ic1f172ba62785018f8e9bb321782d725e2d2f434
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-07-08 12:56:15 +02:00
Etienne Carriere 37e8295abd drivers: st: clock: register parent of secure clocks
Introduce stm32mp1_register_clock_parents_secure() in stm32mp1
clock driver to allow platform shared resources to register as
secure the parent clocks of a clock registered as secure.

Change-Id: I53a9ab6aa78ee840ededce67e7b12a84e08ee843
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-07-08 12:55:56 +02:00
Etienne Carriere 7d6fa6ecbe drivers/scmi-msg: smt entry points for incoming messages
This change implements SCMI channels for reading a SCMI message from a
shared memory and call the SCMI message drivers to route the message
to the target platform services.

SMT refers to the shared memory management protocol which is used
to get/put message/response in shared memory. SMT is a 28byte header
stating shared memory state and exchanged protocol data.

The processing entry for a SCMI message can be a secure interrupt
or fastcall SMCCC invocation.

SMT description in this implementation is based on the OP-TEE
project [1] itself based in the SCP-firmware implementation [2].

Link: [1] a58c4d706d
Link: [2] https://github.com/ARM-software/SCP-firmware.git

Change-Id: I416c7dab5c67954c6fe80bae8d8cdfdcda66873e
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2020-06-17 18:46:43 +02:00
Etienne Carriere 6cc2c1cbed drivers/scmi-msg: support for reset domain protocol
Adds SCMI reset domain protocol support in the SCMI message drivers
as defined in SCMI specification v2.0 [1]. Not all the messages
defined in the specification are supported.

scmi_msg_get_rd_handler() sanitizes the message_id value
against any speculative use of reset domain ID as a index since by
SCMI specification, IDs are indices.

This implementation is based on the OP-TEE project implementation [2]
itself based on the SCP-firmware implementation [3] of the SCMI
protocol server side.

Link: [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/DEN0056A_System_Control_and_Management_Interface.pdf
Link: [2] 56a1f10ed9
Link: [3] https://github.com/ARM-software/SCP-firmware.git

Change-Id: If7cf13de40a815dedb40dcd5af8b6bb6725d9078
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2020-06-17 11:07:11 +02:00
Etienne Carriere c9e8300012 drivers/scmi-msg: support for clock protocol
Adds SCMI clock protocol support in the SCMI message drivers as
defined in SCMI specification v2.0 [1] for clock protocol messages.

Platform can provide one of the plat_scmi_clock_*() handler for the
supported operations set/get state/rate and others.

scmi_msg_get_clock_handler() sanitizes the message_id value
against any speculative use of clock ID as a index since by
SCMI specification, IDs are indices.

This implementation is based on the OP-TEE project implementation [2]
itself based on the SCP-firmware implementation [3] of the SCMI
protocol server side.

Link: [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/DEN0056A_System_Control_and_Management_Interface.pdf
Link: [2] a7a9e3ba71
Link: [3] https://github.com/ARM-software/SCP-firmware.git

Change-Id: Ib56e096512042d4f7b9563d1e4181554eb8ed02c
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2020-06-17 11:07:02 +02:00
Etienne Carriere 75366ccd9b drivers/scmi-msg: driver for processing scmi messages
This change introduces drivers to allow a platform to create a basic
SCMI service and register handlers for client request (SCMI agent) on
system resources. This is the first piece of the drivers: an entry
function, the SCMI base protocol support and helpers for create
the response message.

With this change, scmi_process_message() is the entry function to
process an incoming SCMI message. The function expect the message
is already copied from shared memory into secure memory. The message
structure stores message reference and output buffer reference where
response message shall be stored.

scmi_process_message() calls the SCMI protocol driver according to
the protocol ID in the message. The SCMI protocol driver will call
defined platform handlers according to the message content.

This change introduces only the SCMI base protocol as defined in
SCMI specification v2.0 [1]. Not all the messages defined
in the specification are supported.

The SCMI message implementation is derived from the OP-TEE project [2]
itself based on the SCP-firmware implementation [3] of the SCMI protocol
server side.

Link: [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/DEN0056A_System_Control_and_Management_Interface.pdf
Link: [2] ae8c806809
Link: [3] https://github.com/ARM-software/SCP-firmware/tree/v2.6.0

Change-Id: I639c4154a39fca60606264baf8d32452641f45e9
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2020-06-17 11:05:04 +02:00
Etienne Carriere 77d0504ed5 drivers: introduce ST ETZPC driver
ETZPC stands for Extended TrustZone Protection Controller. It is a
resource conditional access device. It is mainly based on Arm TZPC.

ST ETZPC exposes memory mapped DECPROT cells to set access permissions
to SoC peripheral interfaces as I2C, SPI, DDR controllers, and some
of the SoC internal memories.

ST ETZPC exposes memory mapped TZMA cells to set access permissions
to some SoC internal memories.

Change-Id: I47ce20ffcfb55306dab923153b71e1bcbe2a5570
Co-developed-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-06-03 15:53:46 +02:00
Mark Dykes ec29ce67cf Merge "drivers: stm32_reset adapt interface to timeout argument" into integration 2020-06-01 18:07:10 +00:00
Etienne Carriere 45c70e6867 drivers: stm32_reset adapt interface to timeout argument
Changes stm32mp1 reset driver to API to add a timeout argument
to stm32mp_reset_assert() and stm32mp_reset_deassert() and
a return value.

With a supplied timeout, the functions wait the target reset state
is reached before returning. With a timeout of zero, the functions
simply load target reset state in SoC interface and return without
waiting.

Helper functions stm32mp_reset_set() and stm32mp_reset_release()
use a zero timeout and return without a return code.

This change updates few stm32 drivers and plat/stm32mp1 blé_plat_setup.c
accordingly without any functional change.
functional change.

Change-Id: Ia1a73a15125d3055fd8739c125b70bcb9562c27f
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-06-01 08:38:20 +02:00
Etienne Carriere 25be845ed2 drivers: stm32mp1 clocks: fix debug trace on clock enable/disable
Adds missing terminal new line character '\n' to debug traces,
fix format as index is an unsigned value and use present tense rather
than past tense in the printed message.

Change-Id: I88c06ef4d3a11d97ff8e96875a3dd0f58a3c98b6
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-05-11 15:04:49 +02:00
Etienne Carriere 033b6c3ac3 drivers: stm32mp1 clocks: enable system clocks during initialization
Enable few system clocks at related BL initialization.

Change-Id: I12b35e8cdc128b993de4a1dc4c6e9d52624dd8d9
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-05-11 15:04:46 +02:00
Etienne Carriere 35848200b9 drivers: stm32mp1 clocks: prevent crash on always on clocks
Oscillators and PLLs are not gated on stm32mp_clk_enable/disable()
calls. This change prevents functions to panic when called for such
always-on clocks. Gating these clocks is out of the scope of
this change.

Change-Id: Ie730553dea480b529de942446176db9119587832
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-05-11 15:04:43 +02:00
Etienne Carriere 016af0064d drivers: stm32mp1 clocks: add RTC as a gateable clock
Adds RTC clock to the list of the supported clocks. This allows
stm32mp_clk_*() API functions to enable, disable and set and get
rate for the clock RTC clock.

Change-Id: I8efc3f00b1f22d1912f59d1846994e9e646d6614
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-05-11 15:01:57 +02:00
Etienne Carriere 8ae08dcd19 drivers: stm32mp1 clocks: support shifted clock selector bit masks
The current implementation optimizes memory consumed by gateable
clock table by storing bit mask and bit shift with 1 byte each.
The issue is that register selector bit masks above the 7th LSBit
cannot be stored.

This change uses the shift info to shift the mask before it is used,
allowing clock selector register bit fields to be spread on the 32 bits
of the register as long as the mask fits in 8 contiguous bit at most.

This change is needed to add the RTC clock to the gateable clocks table.

Change-Id: I8a0fbcbf20ea383fb3d712f5064d2d307e44465d
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-05-11 15:01:46 +02:00
Etienne Carriere 8fbcd9e421 drivers: stm32mp1 clocks: allow tree lookup for several system clocks
Oscillators, PLLs and some system clocks can be related straight to
a parent clock. Prior this change were only oscillators and few
clocks supported by this look up. This changes adds PLLs and other
system clocks. This enables for flexible use of clock tree exploration
when computing a clock frequency value.

Change-Id: I15ec98023a7095e3120a6954de59a4799d92c66b
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2020-05-11 15:01:29 +02:00
Andre Przywara 7ad6d36201 plat/stm32: Use generic fdt_get_reg_props_by_name()
The STM32 platform port parse DT nodes to find base address to
peripherals. It does this by using its own implementation, even though
this functionality is generic and actually widely useful outside of the
STM32 code.

Re-implement fdt_get_reg_props_by_name() on top of the newly introduced
fdt_get_reg_props_by_index() function, and move it to fdt_wrapper.c.
This is removes the assumption that #address-cells and #size-cells are
always one.

Change-Id: I6d584930262c732b6e0356d98aea50b2654f789d
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2020-05-05 15:36:51 +01:00
Andre Przywara be858cffa9 plat/stm32: Implement fdt_read_uint32_default() as a wrapper
The STM32 platform code uses its own set of FDT helper functions,
although some of them are fairly generic.

Remove the implementation of fdt_read_uint32_default() and implement it
on top of the newly introduced fdt_read_uint32() function, then convert
all users over.

This also fixes two callers, which were slightly abusing the "default"
semantic.

Change-Id: I570533362b4846e58dd797a92347de3e0e5abb75
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2020-04-29 10:19:17 +01:00
Andre Przywara 52a616b48c plat/stm32: Use generic fdt_read_uint32_array() implementation
The device tree parsing code for the STM32 platform is using its own FDT
helper functions, some of them being rather generic.
In particular the existing fdt_read_uint32_array() implementation is now
almost identical to the new generic code in fdt_wrappers.c, so we can
remove the ST specific version and adjust the existing callers.

Compared to the original ST implementation the new version takes a
pointer to the DTB as the first argument, and also swaps the order of
the number of cells and the pointer.

Change-Id: Id06b0f1ba4db1ad1f733be40e82c34f46638551a
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2020-04-28 15:56:31 +01:00
Yann Gautier 84686ba347 stm32mp1: dynamically map DDR later and non-cacheable during its test
A speculative accesses to DDR could be done whereas it was not reachable
and could lead to bus stall.
To correct this the dynamic mapping in MMU is used.
A first mapping is done for DDR tests with MT_NON_CACHEABLE attribute,
once DDR access is setup. It is then unmapped and a new mapping DDR is done
with cacheable attribute (through MT_MEMORY) to speed-up BL33 (or OP-TEE)
load.

The disabling of cache during DDR tests is also removed, as now useless.
A call to new functions stm32mp_{,un}map_ddr_non_cacheable() is done
instead.

PLAT_XLAT_TABLES_DYNAMIC is activated globally as used in BL2 and BL32.

BL33 max size is also updated to take into account the secure and shared
memory areas. Those are used in OP-TEE case.

Change-Id: I22c48b4a48255ee264991c34ecbb15bfe87e67c3
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-03-26 18:33:39 +01:00
Yann Gautier 9543389430 io: io_stm32image: correct possible NULL pointer dereference
This issue was found with cppcheck in our downstream code:
[drivers/st/io/io_stm32image.c:234] -> [drivers/st/io/io_stm32image.c:244]:
 (warning) Either the condition 'buffer!=0U' is redundant or there is
 possible null pointer dereference: local_buffer.

Change-Id: Ieb615b7e485dc93bbeeed4cd8bf845eb84c14ac9
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-03-23 16:42:37 +01:00
Yann Gautier 9fe181c6a6 nand: stm32_fmc2_nand: correct xor_ecc.val assigned value
The variable is wrongly set to 0L, whereas it is an unsigned int, it should
then be 0U.

Change-Id: I0b164c0ea598ec8a503f1693da2f3789f59da238
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-03-23 16:42:33 +01:00
Yann Gautier 9d22d31080 spi: stm32_qspi: correct static analysis issues
Sparse issue:
drivers/st/spi/stm32_qspi.c:445:5:
 warning: symbol 'stm32_qspi_init' was not declared. Should it be static?

Cppcheck issue:
[drivers/st/spi/stm32_qspi.c:175] -> [drivers/st/spi/stm32_qspi.c:187]:
 (style) Variable 'len' is reassigned a value before the old one has been
 used.
[drivers/st/spi/stm32_qspi.c:178]:
 (style) The scope of the variable 'timeout' can be reduced.

Change-Id: I575fb50766355a6717cbd193fc4a80ff1923014c
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-03-23 16:38:41 +01:00
Andre Przywara c10db6deb1 stm32: Use generic console_t data structure
Since now the generic console_t structure holds the UART base address as
well, let's use that generic location and drop the UART driver specific
data structure at all.

Change-Id: Iea6ca26ff4903c33f0fad27fec96fdbabd4e0a91
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2020-02-25 09:34:38 +00:00
Lionel Debieve 0581a88778 spi: stm32_qspi: Add QSPI support
Add QSPI support (limited to read interface).
Implements the memory map and indirect modes.
Low level driver based on SPI-MEM operations.

Change-Id: Ied698e6de3c17d977f8b497c81f2e4a0a27c0961
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
2020-01-20 11:32:59 +01:00
Lionel Debieve 695f7df852 fmc: stm32_fmc2_nand: Add FMC2 driver support
Add fmc2_nand driver support. The driver implements
only read interface for NAND devices.

Change-Id: I3cd037e8ff645ce0d217092b96f33ef41cb7a522
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
2020-01-20 11:32:59 +01:00
Yann Gautier 70cb0bff7d io: change seek offset to signed long long
IO seek offset can be set to values above UINT32_MAX, this change
changes the seek offset argument from 'ssize_t' to 'signed long long'.
Fixing platform seek functions to match the new interface update.

Change-Id: I25de83b3b7abe5f52a7b0fee36f71e60cac9cfcb
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
2020-01-10 21:14:57 +01:00
Nicolas Le Bayon 243b61d15a gpio: stm32_gpio: do not mix error code types
Change-Id: I84f8a99be2dcdf7c51fbecdb324df8e2f32cc855
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-10-03 11:17:48 +02:00
Lionel Debieve 4bdb1a7a6a stm32mp1: add authentication support for stm32image
This commit adds authentication binary support for STM32MP1.
It prints the bootrom authentication result if signed
image is used and authenticates the next loaded STM32 images.
It also enables the dynamic translation table support
(PLAT_XLAT_TABLES_DYNAMIC) to use bootrom services.

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Change-Id: Iba706519e0dc6b6fae1f3dd498383351f0f75f51
2019-09-23 09:48:07 +00:00
Lionel Debieve f700423c1f bsec: move bsec_mode_is_closed_device() service to platform
This BSEC service is a platform specific service. Implementation
moved to the platform part.

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Change-Id: I1f70ed48a446860498ed111acce01187568538c9
2019-09-20 23:21:10 +02:00
Lionel Debieve b1e0b11cc9 crypto: stm32_hash: Add HASH driver
The driver manages the HASH processor IP on STM32MP1

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Change-Id: I3b67c80c16d819f86b951dae29a6c465e51ad585
2019-09-20 23:21:10 +02:00
Yann Gautier ebf851ed34 stm32mp1: manage CONSOLE_FLAG_TRANSLATE_CRLF and cleanup driver
The STM32 console driver was pre-pending '\r' before '\n'.
It is now managed by the framework with the flag:
CONSOLE_FLAG_TRANSLATE_CRLF.
Remove the code in driver, and add the flag for STM32MP1.

Change-Id: I5d0d5d5c4abee0b7dc11c2f8707b1b5cf10149ab
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-09-10 17:21:58 +02:00
Yann Gautier d9d803e0be mmc: stm32_sdmmc2: correctly manage block size
DBLOCKSIZE should be filled such as the data size is 2^DBLOCKSIZE.
Hence it is calculated with __builtin_ctz.

Change-Id: Id6b5ff9b594afc4fc523a388011beed307e6abd1
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-09-02 17:53:16 +02:00
Yann Gautier 2c2c9f1eb1 mmc: stm32_sdmmc2: manage max-frequency property from DT
If the max-frequency property is provided in the device tree mmc node,
it should be managed. The max allowed frequency will be the min between
this property value and what the card can support.

Change-Id: I885b676c3300d2670a0fe4c6ecab87758b5893ad
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-09-02 17:53:14 +02:00
Yann Gautier 1e91952942 stm32mp1: move check_header() to common code
This function can be used on several stm32mp devices, it is then moved in
plat/st/common/stm32mp_common.c.

Change-Id: I862debe39604410f71a9ddc28713026362e9ecda
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-09-02 17:52:55 +02:00
Yann Gautier 4b549b2153 stm32mp1: add support for LpDDR3
This change enables LpDDR3 initialization with PMIC.

Change-Id: I2409a808335dfacd69a8517cb8510cee98bb8161
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-09-02 17:52:29 +02:00
Yann Gautier e463d3f43e stm32mp1: use a common function to check spinlock is available
To use spinlocks, MMU should be enabled, as well as data cache.
A common function is created (moved from clock file).
It is then used whenever a spinlock has to be taken, in BSEC and clock
drivers.

Change-Id: I94baed0114a2061ad71bd5287a91bf7f1c6821f6
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-09-02 17:51:57 +02:00
Yann Gautier 6cb45f8984 clk: stm32mp: enable RTCAPB clock for dual-core chips
In order to correctly manage the bring-up of non boot CPUs, the RTCAPB
clock needs to be enabled.
It controls the access to backup registers, where the CPU entrypoint
will be stored.

Change-Id: Ifeeceb4faf64bc9e0778030444f437cc0bb27272
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2019-09-02 17:51:30 +02:00
Yann Gautier 73680c230f stm32mp1: add watchdog support
Introduce driver for STM32 IWDG peripheral (Independent Watchdog).
It is configured according to device tree content and should be enabled
from there.
The watchdog is not started by default. It can be started after an HW
reset if the dedicated OTP is fused.

The watchdog also needs to be frozen if a debugger is attached.
This is done by configuring the correct bits in DBGMCU.
This configuration is allowed by checking BSEC properties.

An increase of BL2 size is also required when adding this new code.

Change-Id: Ide7535d717885ce2f9c387cf17afd8b5607f3e7f
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2019-09-02 17:25:08 +02:00
Yann Gautier f33b2433f5 stm32mp1: add general SYSCFG management
The system configuration controller is mainly used to manage
the compensation cell and other IOs and system related settings.

The SYSCFG driver is in charge of configuring masters on the interconnect,
IO compensation, low voltage boards, or pull-ups for boot pins.
All other configurations should be handled in Linux drivers requiring it.

Device tree files are also updated to manage vdd-supply regulator.

Change-Id: I10fb513761a7d1f2b7afedca9c723ad9d1bccf42
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-06-17 14:03:51 +02:00
Yann Gautier dd98aec87c clk: stm32mp1: correctly handle Clock Spreading Generator
To activate the CSG option, the driver needs to set the bit2
of PLLNCR register = SSCG_CTRL: Spread Spectrum Clock Generator.
This bit should not be cleared when starting the PLL.

Change-Id: Ie5c720ff03655f27a7e7e9e7ccf8295dd046112f
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-06-17 14:03:51 +02:00
Yann Gautier d4151d2ff9 clk: stm32mp1: use defines for mask values in stm32mp1_clk_sel array
Rework the macro that eases the table definition: the src and msk fields
are now using MASK and SHIFT defines of each source register.
Some macros had then to be modified: _USART1_SEL, _ASS_SEL and _MSS_SEL to
_UART1_SEL, _AXIS_SEL, and _MCUS_SEL to match register fields.

Note: the mask for RCC_ASSCKSELR_AXISSRC is changed from 0x3 to 0x7
to reflect the size of the register field, even if there are only
3 possible clock sources.

The mask value is also corrected for QSPI and FMC clock selection.

Change-Id: I44114e3c1dd37b9fa1be1ba519611abd9a07764c
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2019-06-17 14:03:51 +02:00
Yann Gautier f66358afee clk: stm32mp1: move oscillator functions to generic file
Those functions are generic for parsing nodes from device tree
hence could be located in generic source file.

The oscillators description structure is also moved to STM32MP1 clock
driver, as it is no more used in stm32mp1_clkfunc and cannot be in a
generic file.

Change-Id: I93ba74f4eea916440fef9b160d306af1b39f17c6
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-06-17 14:03:51 +02:00
Yann Gautier e1abd5600b arch: add some defines for generic timer registers
Those defines are used in STM32MP1 clock driver.
It is better to put them altogether with already defined registers.

Change-Id: I6f8ad8c2477b947af6f76283a4ef5c40212d0027
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-06-17 14:03:16 +02:00
Ambroise Vincent be3991c0c3 Console: remove deprecated finish_console_register
The old version of the macro is deprecated.

Commit cc5859ca19 ("Multi-console: Deprecate the
`finish_console_register` macro") provides more details.

Change-Id: I3d1cdf6496db7d8e6cfbb5804f508ff46ae7e67e
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
2019-04-03 14:55:18 +01:00
Yann Gautier b248bb4a74 mmc: stm32_sdmmc2: fill ocr_voltage
STM32MP1 SDMMC device voltage is 3.3V. We should then precise the 2 ranges
3.2 to 3.3V and 3.3 to 3.4V in ocr_voltage field.

Change-Id: I88e479f8f16bfe608a7808eace0df3fdec48deab
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-03-08 10:59:00 +01:00
Yann Gautier b053a22e8a stm32mp1: add minimal support for co-processor Cortex-M4
STM32MP1 chip embeds a dual Cortex-A7 and a Cortex-M4.
The support for Cortex-M4 clocks is added when configuring the clock tree.
Some minimal security features to allow communications between A7 and M4
are also added.

Change-Id: I60417e244a476f60a2758f4969700b2684056665
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2019-02-20 17:34:21 +01:00
Yann Gautier 0d21680c35 stm32mp1: update clock driver
Remove useless private structure in function prototypes.
Add a reference counter on clocks.
Prepare for future secured/shared/non-secured clocks.

Change-Id: I3dbed81721da5ceff5e10b2c4155b1e340c036ee
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Nicolas LE BAYON <nicolas.le.bayon@st.com>
2019-02-14 11:20:23 +01:00
Yann Gautier 5202cb393d stm32mp1: add timeout detection in reset driver
This change makes the platform to panic in case of peripheral reset
resource malfunction.

Change-Id: I17eb9cb045b78a4e5142a8c33b744e84992d732a
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas LE BAYON <nicolas.le.bayon@st.com>
2019-02-14 11:20:23 +01:00