project/bcm63xx/atf.git
6 years agowarp7: io_storage: Add initial stub warp7_io_storage.c
Bryan O'Donoghue [Thu, 24 May 2018 12:00:57 +0000 (13:00 +0100)]
warp7: io_storage: Add initial stub warp7_io_storage.c

This commit adds support for parsing a FIP pre-loaded by a previous
boot-phase such as u-boot or via ATF reading directly from eMMC.

[bod: squashing several patches from Rui, Jun and bod]

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agowarp7: Define a platform_def.h
Bryan O'Donoghue [Fri, 25 May 2018 16:54:01 +0000 (17:54 +0100)]
warp7: Define a platform_def.h

This patch defines a platform_def.h describing

- FIP layout and location
- eMMC device select
- UART identity select
- System clock frequency
- Operational memory map

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agowarp7: mem_params_desc: Add a file which exports a REGISTER_BL_IMAGE_DESCS
Bryan O'Donoghue [Fri, 25 May 2018 16:20:50 +0000 (17:20 +0100)]
warp7: mem_params_desc: Add a file which exports a REGISTER_BL_IMAGE_DESCS

In order to link even a basic image we need to declare
REGISTER_BL_IMAGE_DESCS. This patch declares an empty structure which is
passed to REGISTER_BL_IMAGE_DESCS(). Later patches will add in some
meaningful data.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agowarp7: Add a warp7_private.h file
Bryan O'Donoghue [Fri, 25 May 2018 16:18:56 +0000 (17:18 +0100)]
warp7: Add a warp7_private.h file

Internal declarations for the WaRP7 port will go here. For now just include
sys/types.h.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agowarp7: image_load: Add warp7_image_load.c
Bryan O'Donoghue [Thu, 24 May 2018 18:38:11 +0000 (19:38 +0100)]
warp7: image_load: Add warp7_image_load.c

This commit adds warp7_image_load.c with the functions

- plat_flush_next_bl_params()
- plat_get_bl_image_load_info()
- plat_get_next_bl_params()

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agowarp7: Add initial warp7_helpers.S
Bryan O'Donoghue [Thu, 24 May 2018 18:32:52 +0000 (19:32 +0100)]
warp7: Add initial warp7_helpers.S

This commit adds a warp7_helpers.S which contains a implementation of:

- platform_mem_init
- plat_get_my_entrypoint
- plat_crash_console_init
- plat_crash_console_putc

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_wdog: Add code to initialize the wdog block
Bryan O'Donoghue [Fri, 25 May 2018 15:45:27 +0000 (16:45 +0100)]
imx: imx_wdog: Add code to initialize the wdog block

The watchdog block on the IMX is mercifully simple. This patch maps the
various registers and bits associated with the block.

We are mostly only really interested in the power-down-enable (PDE) bits in
the block for the purposes of ATF.

The i.MX7 Solo Applications Processor Reference Manual details the PDE bit
as follows:

"Power Down Enable bit. Reset value of this bit is 1, which means the power
down counter inside the WDOG is enabled after reset. The software must
write 0 to this bit to disable the counter within 16 seconds of reset
de-assertion. Once disabled this counter cannot be enabled again. See
Power-down counter event for operation of this counter."

This patch does that zero write in-lieu of later phases in the boot
no-longer have the necessary permissions to rewrite the PDE bit directly.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_caam: Add code to initialize the CAAM job-rings to NS-world
Bryan O'Donoghue [Wed, 11 Jul 2018 15:35:17 +0000 (16:35 +0100)]
imx: imx_caam: Add code to initialize the CAAM job-rings to NS-world

This patch defines the most basic part of the CAAM and the only piece of
the CAAM silicon we are really interested in, in ATF, the CAAM control
structure.

The CAAM itself is a huge address space of some 32k, way out of scope for
the purpose we have in ATF.

This patch adds a simple CAAM init function that assigns ownership of the
CAAM job-rings to the non-secure MID with the ownership bit set to
non-secure.

This will allow later logic in the boot process such as OPTEE, u-boot and
Linux to assign job-rings as appropriate, restricting if necessary but
leaving open the main functionality of the CAAM to the Linux NS runtime.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_hab: Define a HAB header file
Bryan O'Donoghue [Tue, 3 Jul 2018 14:07:32 +0000 (15:07 +0100)]
imx: imx_hab: Define a HAB header file

The High Assurance Boot or HAB is an on-chip method of providing a
root-of-trust from the reset vector to subsequent stages in the bootup
flow of the Cortex-A7 on the i.MX series of processors.

This patch adds a simple header file with pointer offsets of the provided
set of HAH API callbacks in the BootROM.

The relative offset of the function pointers is a constant and known
quantum, a software-contract between NXP and an implementation which is
defined in the NXP HAB documentation.

All we need is the correct base offset and then we can map the set of
function pointers relative to that offset.

imx_hab_arch.h provides the correct offset and the imx_hab.h hooks the
offset to the pre-determined callbacks.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
6 years agoimx7: hab_arch: Provide a hab_arch.h file
Bryan O'Donoghue [Tue, 3 Jul 2018 14:11:33 +0000 (15:11 +0100)]
imx7: hab_arch: Provide a hab_arch.h file

In order to enable compile time differences in HAB interaction, we should
split out the definition of the base address of the HAB API.

Some version of the i.MX series have different offsets from the BootROM
base for the HAB callback table.

This patch defines the header into which we will define the i.MX7 specific
offset. The offset of the i.MX7 function-callback table is simultaneously
defined.

Once done, we can latch a set of common function pointer locations from the
offset given here and if necessary change the offset for different
processors without any other code-change.

For now all we support is i.MX7 so the only offset being defined is that
for the i.MX7.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
6 years agoimx: imx_snvs: Add an SNVS core functionality
Bryan O'Donoghue [Fri, 25 May 2018 15:52:03 +0000 (16:52 +0100)]
imx: imx_snvs: Add an SNVS core functionality

This patch adds snvs.c with a imx_snvs_init() function.

imx_snvs_init() sets up permissions of the RTC via the SNVS HPCOMR.

During previous work with OPTEE on the i.MX7 part we discovered that prior
to switching from secure-world to normal-world it is required to apply more
permissive permissions than are defaulted to in order for Linux to be able
to access the RTC and CAAM functionality in general.

This patch pertains to fixing the RTC permissions by way of the
HPCOMR.NPSWA_EN bit.

Once set non-privileged code aka Linux-kernel code has permissions to
access the SNVS where the RTC resides.

Perform that permissions fix in imx_snvs_init() now, with a later patch making
the call from our platform setup code.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_snvs: Define a SNVS header and memory map
Bryan O'Donoghue [Mon, 25 Jun 2018 12:15:10 +0000 (13:15 +0100)]
imx: imx_snvs: Define a SNVS header and memory map

This commit defines two things.

- The basic SNVS memory map. At the moment that is total overkill for the
  permission bits we need to set inside the SNVS but, for the sake of
  completeness define the whole SNVS area as a struct.

- The bits of the HPCOMR register

  A permission fix will need to be applied to the SNVS block prior to
  switching on TrustZone. All we need to do is waggle a bit in the HPCOMR
  register. To do that waggle we first need to define the bits of the
  HPCOMR register.

- A imx_snvs_init() function definition

  Declare the snvs_init() function so that it can be called from our
  platform setup code.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_csu: Add a simple CSU layer
Bryan O'Donoghue [Fri, 25 May 2018 15:56:52 +0000 (16:56 +0100)]
imx: imx_csu: Add a simple CSU layer

- Add a header to define imx_csu_init().
- Defines the Central Security Unit's Config Security Level
  permission bits.
- Define CSU_CSL_OPEN_ACCESS permission bitmask
- Run a loop to setup peripheral CSU permissions

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_aips: Add initial AIPS support
Bryan O'Donoghue [Fri, 25 May 2018 15:43:22 +0000 (16:43 +0100)]
imx: imx_aips: Add initial AIPS support

This patch adds an initial AHB-to-IP TrustZone (AIPS-TZ) initialization
routine. Setting up the AIPSTZ controller is required to inform the SoC
interconnect fabric which bus-masters can read/write and if the read/writes
are buffered.

For our purposes the initial configuration is for everything to be open. We
can lock-down later on as necessary.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_io_mux: Define an IO-mux layer
Bryan O'Donoghue [Wed, 20 Jun 2018 15:56:31 +0000 (16:56 +0100)]
imx: imx_io_mux: Define an IO-mux layer

This patch defines:

- The full range of IO-mux register offsets relative to the base address of
  the IO-mux block base address.

- The bits for muxing the UART1 TX/RX lines.

- The bits for muxing the UART6 TX/RX lines.

- The pad control pad bits for the UART

Two functions are provided to configure pad muxes:

- void io_muxc_set_pad_alt_function(pad_mux_offset, alt_function)
  Takes a pad_mux_offset and sets the alt_function bit-mask supplied.
  This will have the effect of switching the pad into one of its defined
  peripheral functions. These peripheral function modes are defined in the
  NXP documentation and need to be referred to in order to correctly
  configure a new alternative-function.

- void io_muxc_set_pad_features(pad_feature_offset, pad_features)
  Takes a pad_feature_offset and applies a pad_features bit-mask to the
  indicated pad.
  This function allows the setting of PAD drive-strength, pull-up values,
  hysteresis glitch filters and slew-rate settings.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx7: imx7_clock: usb: Initialize the USB core clocks
Bryan O'Donoghue [Fri, 27 Jul 2018 14:03:51 +0000 (15:03 +0100)]
imx7: imx7_clock: usb: Initialize the USB core clocks

This patch initializes USB core clocks for the i.MX7.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx7: imx7_clock: wdog: Initialize the watchdog clocks
Bryan O'Donoghue [Fri, 27 Jul 2018 13:53:43 +0000 (14:53 +0100)]
imx7: imx7_clock: wdog: Initialize the watchdog clocks

This patch initializes the watchdog clocks for the i.MX7.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx7: imx7_clock: uart: Add UART clock init logic
Bryan O'Donoghue [Fri, 8 Jun 2018 12:16:29 +0000 (13:16 +0100)]
imx7: imx7_clock: uart: Add UART clock init logic

This patch adds an internal UART init routine that gets called from the
external facing clock init function.

In the first pass this call does an explicit disable of all UART
clock-gates. Later changes will enable only the UART clock-gates we care
about.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_clock: usb: Add USB clock API
Bryan O'Donoghue [Mon, 16 Jul 2018 17:21:19 +0000 (18:21 +0100)]
imx: imx_clock: usb: Add USB clock API

This set of patches adds a very minimal layer of USB enabling patches to
clock.c. Unlike the watchdog or UART blocks the USB clocks pertain to PHYs,
the main USB clock etc, not to different instances of the same IP block.

As a result this patch-set takes the clock CCGR clock identifier directly
rather than as an index of an instance of blocks of the same type.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_clock: wdog: Add watchdog clock API
Bryan O'Donoghue [Fri, 13 Jul 2018 09:21:40 +0000 (10:21 +0100)]
imx: imx_clock: wdog: Add watchdog clock API

This patch adds a set of functions to enable the clock for each of the
watchdog IP blocks.

Unlike the MMC and UART blocks, the watchdog blocks operate off of the one
root clock, only the clock-gates are enable/disabled individually.

As a consequence the function clock_set_wdog_clk_root_bits() is used to set
the root-slice just once for all of the watchdog blocks.

Future implementations may need to change this model but for now on the one
supported processor and similar NXP SoCs this model should work fine.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_clock: mmc: Add USDHC clock API
Jun Nie [Thu, 28 Jun 2018 08:38:11 +0000 (16:38 +0800)]
imx: imx_clock: mmc: Add USDHC clock API

This patch adds an API to configure up the base USDHC clocks, taking a
bit-mask of silicon specific bits as an input from a higher layer in order
to direct the necessary clock source.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_clock: uart: Add UART clock API
Bryan O'Donoghue [Wed, 30 May 2018 18:56:54 +0000 (19:56 +0100)]
imx: imx_clock: uart: Add UART clock API

This patch adds an API to configure up the base UART clocks, taking a
bit-mask of silicon specific bits as an input from a higher layer in order
to direct the necessary clock source.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx: imx_clock: Add driver and associated clock register definitions
Bryan O'Donoghue [Fri, 25 May 2018 15:48:39 +0000 (16:48 +0100)]
imx: imx_clock: Add driver and associated clock register definitions

This commit:

- Defines a clock stub with a conjoined header defining the clock
  memory map.

- Defines the CCM Clock Gating Register which comes in a quadrumvirate
  register set to read, set, clear and toggle individual clock gates into
  one of four states based bitmask.

  00: Domain clocks not needed
  01: Domain clocks needed when in RUN
  10: Domain clocks needed when in RUN and WAIT
  11: Domain clocks needed all the time

- Defines clock control register bits

  There are various quadrumvirate register blocks target-root, misc-root,
  post-root, pre-root in the CCM.

  The number of registers is huge but the four registers in each
  quadrumvirate block contain the same bits, so the number of bit
  definitions is actually quite low.

- Defines clock identifiers

  An array of clock gates is provided in the CCM block. In order to index
  that array and thus enable/disable clock gates for the right components,
  we need to provide meaningful names to the indices.

  Section 5.2.5 of the i.MX7 Solo Application Processor Reference Manual
  Rev 0.1 provides the relevant details.

- Defines target mux select bits
  This is a comprehensive definition of the target clock mux select bits.
  These bits are required to correctly select the clock source. Defining
  all of the bits up-front even for unused blocks in ATF means we can
  switch on any block we want at a later date without having to write new
  code in the clock-mux layer.

- Defines identifier indices into root-slice array
  The root-slice array of control registers has a specific set of indices,
  which differ from the clock-gate indices.

- Provides a clock gate enable/disable routine
  Provides a clock-gate enable/disable routine via the set/clr
  registers in a given clock-gate control register block.

  This index passed should be one of the enums associated with CCM and
  depending on enable/disable being passed either set or clr will be
  written to.

  The Domain0 bits are currently the only bits targeted by this write, more
  work may need to be done on the domain bits in subsequent patches as a
  result.

- imx: Adds set/clr routines to clock layer

  Adds a set and clr routine to the clock layer. These routines allow us to
  access the set and clear registers of the "target" block registers. These
  are the registers where we select the clock source from the available list.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoimx7: imx_regs: Add a shared imx-regs.h for i.MX7 ATF platforms
Bryan O'Donoghue [Fri, 25 May 2018 15:05:20 +0000 (16:05 +0100)]
imx7: imx_regs: Add a shared imx-regs.h for i.MX7 ATF platforms

In order to have some common code shared between similar SOCs its pretty
common to have IP blocks reused. In reusing those blocks we frequently need
to map compatible blocks to different addresses depending on the SOC.

This patch adds a basic memory map of the i.MX7 based on the "Cortex-A7
Memory Map" section 2.12 of "i.MX7Solo Applications Processor Reference
Manual, Rev 0.1 08/2016"

In memory map terms the i.MX7S and i.MX7D are identical with the D
variant containing two Cortex-A7 cores plus a Cortex-M core and the S
variant containing one Cortex-A7 and one Cortex-M.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agodrivers: imx: mxc_usdhc: Add USDHC driver to support boot EMMC
Jun Nie [Thu, 28 Jun 2018 08:38:02 +0000 (16:38 +0800)]
drivers: imx: mxc_usdhc: Add USDHC driver to support boot EMMC

Add USDHC driver to support boot EMMC. Only initialization
and single/multiple block read are tested.

[bod: fixed checkpatch.pl complaints]
[bod: changed name to imx_usdhc for namespace consistency]
[bod: squashed antecedent fixes into this one patch]

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agodrivers: mmc: Add missing response type for some commands
Bryan O'Donoghue [Wed, 15 Aug 2018 15:25:30 +0000 (16:25 +0100)]
drivers: mmc: Add missing response type for some commands

Add missing response type for SWITCH command and STOP_TRANSMISSION
so that controller can be configured accordingly.

[bod: ported this change from Jun's eMMC patches to the MMC driver]

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agodrivers: mmc: Fix R3 response type definition
Bryan O'Donoghue [Wed, 15 Aug 2018 14:59:07 +0000 (15:59 +0100)]
drivers: mmc: Fix R3 response type definition

The R3 response type definition should be (1 << 0). Make sure we define the
expected response code in the appropriate fashion.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agodrivers: emmc: dw_mmc: Add response flag into response ID definition
Jun Nie [Thu, 28 Jun 2018 08:38:00 +0000 (16:38 +0800)]
drivers: emmc: dw_mmc: Add response flag into response ID definition

Add response flag into ID definition so that driver does not
need to handle it again.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agodrivers: imx: imx_gpt: Add general purpose timer API binding
Jun Nie [Wed, 4 Jul 2018 07:51:20 +0000 (15:51 +0800)]
drivers: imx: imx_gpt: Add general purpose timer API binding

Add delay timer API so that it can be called by delay timer
layer and used as delay timer globally.

[bod: changed name from imx_delay_timer -> imx_gpt ]

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agodrivers: imx: crash-console: Add a mxc_crash_console driver
Bryan O'Donoghue [Fri, 25 May 2018 16:35:09 +0000 (17:35 +0100)]
drivers: imx: crash-console: Add a mxc_crash_console driver

This patch does two main things

- It implements the crash console UART init in assembly, as a
  hard-coded 115200 8N1 assumed from the 24 MHz clock.

  If the clock setup code has not run yet, this code can't work but,
  setting up clocks and clock-gates is way out of scope for this type of
  recovery function.

- It adds code to write a character out of the NXP UART without using any
  stack-based operations when doing so.

- Provides support for crash console in DCE or DTE mode.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agodrivers: imx: uart: Add mxc_console
Bryan O'Donoghue [Fri, 25 May 2018 16:36:56 +0000 (17:36 +0100)]
drivers: imx: uart: Add mxc_console

- Adds a simple register read/write abstraction to cut-down on the
  amount of typing and text required to access UART registers in this driver.

- Adds a console getc() callback.

- Adds a console putc() callback, translating '\n' to '\r' + '\n'.

- Initializes the MXC UART, take a crude method of calculating the
  BAUD rate generator. The UART clock-gates must have been enabled prior
  to launching the UART init code.
  Special care needs to be taken to ensure the UBIR is initialized before the
  UBMR and we need to ensure that UCR2.SRST comes good before trying to
  program other registers associated with the UART.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
6 years agoMerge pull request #1546 from antonio-nino-diaz-arm/an/log-misra
Dimitris Papastamos [Thu, 30 Aug 2018 15:55:05 +0000 (16:55 +0100)]
Merge pull request #1546 from antonio-nino-diaz-arm/an/log-misra

Fix some MISRA defect in log helpers

6 years agoFix MISRA defects in log helpers
Antonio Nino Diaz [Tue, 28 Aug 2018 10:44:44 +0000 (11:44 +0100)]
Fix MISRA defects in log helpers

No functional changes.

Change-Id: I850f08718abb69d5d58856b0e3de036266d8c2f4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Fix some MISRA defects
Antonio Nino Diaz [Thu, 23 Aug 2018 14:11:46 +0000 (15:11 +0100)]
libc: Fix some MISRA defects

No functional changes.

Change-Id: I907aa47565af2a6c435a5560041fd2b59e65c25c
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agoMerge pull request #1542 from antonio-nino-diaz-arm/an/bl31-misra
Dimitris Papastamos [Thu, 30 Aug 2018 15:18:49 +0000 (16:18 +0100)]
Merge pull request #1542 from antonio-nino-diaz-arm/an/bl31-misra

Some MISRA fixes in BL31, cci and smmu

6 years agoMerge pull request #1544 from jwerner-chromium/JW_handle_ea
Dimitris Papastamos [Thu, 30 Aug 2018 15:09:30 +0000 (16:09 +0100)]
Merge pull request #1544 from jwerner-chromium/JW_handle_ea

context_mgmt: Fix HANDLE_EA_EL3_FIRST implementation

6 years agoMerge pull request #1539 from antonio-nino-diaz-arm/an/gic-misra
Dimitris Papastamos [Thu, 30 Aug 2018 15:08:25 +0000 (16:08 +0100)]
Merge pull request #1539 from antonio-nino-diaz-arm/an/gic-misra

MISRA fixes for the GIC driver

6 years agoMerge pull request #1535 from antonio-nino-diaz-arm/an/backtrace
Dimitris Papastamos [Thu, 30 Aug 2018 15:08:12 +0000 (16:08 +0100)]
Merge pull request #1535 from antonio-nino-diaz-arm/an/backtrace

Introduce backtrace function

6 years agodrivers: cci: Fix MISRA defects
Antonio Nino Diaz [Thu, 23 Aug 2018 09:19:23 +0000 (10:19 +0100)]
drivers: cci: Fix MISRA defects

Change-Id: Ifdb0ceec19d267b14d796b5d31f08f7342190484
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agodrivers: smmu: Fix MISRA defects
Antonio Nino Diaz [Tue, 21 Aug 2018 15:12:29 +0000 (16:12 +0100)]
drivers: smmu: Fix MISRA defects

Change-Id: I2954a99d5b72069bcb7bac9d6926c6209d6ba881
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agoFix MISRA defects in some common headers
Antonio Nino Diaz [Tue, 21 Aug 2018 13:14:31 +0000 (14:14 +0100)]
Fix MISRA defects in some common headers

Change-Id: I8fbb4c785e7e07c7241e0c399a9b65161985c9df
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agoFix MISRA defects in BL31 common code
Antonio Nino Diaz [Fri, 24 Aug 2018 15:30:29 +0000 (16:30 +0100)]
Fix MISRA defects in BL31 common code

Change-Id: I5993b425445ee794e6d2a792c244c0af53640655
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agoplat/arm: gic: Fix macros
Antonio Nino Diaz [Tue, 21 Aug 2018 08:42:26 +0000 (09:42 +0100)]
plat/arm: gic: Fix macros

Change-Id: I130e35d55c474ecd80f9a825be23620d5bc1a715
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agoplat/common: gic: MISRA fixes
Antonio Nino Diaz [Tue, 21 Aug 2018 08:44:43 +0000 (09:44 +0100)]
plat/common: gic: MISRA fixes

Change-Id: I11509a3271d7608048d49e7dd5192be0c2a313f0
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agogic v3: Fix width of types of helper functions
Antonio Nino Diaz [Tue, 21 Aug 2018 09:03:07 +0000 (10:03 +0100)]
gic v3: Fix width of types of helper functions

Change-Id: I08447b44fffb6e54f9fab957eee369ccbda4247a
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agogic: Fix types
Antonio Nino Diaz [Tue, 21 Aug 2018 09:02:33 +0000 (10:02 +0100)]
gic: Fix types

Change-Id: I6a2adef87c20f9279446a54b7e69618fba3d2a25
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agogic: Fix definitions
Antonio Nino Diaz [Fri, 24 Aug 2018 10:46:33 +0000 (11:46 +0100)]
gic: Fix definitions

Change-Id: I945029ca26ea2e63f0d92c5f33019b882f23bd72
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agogic v3: Turn macros into static inline functions
Antonio Nino Diaz [Mon, 13 Aug 2018 14:29:29 +0000 (15:29 +0100)]
gic v3: Turn macros into static inline functions

Change-Id: Ib587f12f36810fc7d4f4b8f575195554299b8ed4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agobacktrace: Print backtrace in assert() and panic()
Antonio Nino Diaz [Thu, 23 Aug 2018 14:13:58 +0000 (15:13 +0100)]
backtrace: Print backtrace in assert() and panic()

When any of these functions is called the backtrace will be printed to
the console.

Change-Id: Id60842df824b320c485a9323ed6b80600f4ebe35
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agobacktrace: Introduce backtrace function
Douglas Raillard [Tue, 21 Aug 2018 11:54:45 +0000 (12:54 +0100)]
backtrace: Introduce backtrace function

This function diplays the backtrace, the current EL and security state
to allow a post-processing tool to choose the right binary to interpret
the dump.

The output can be fed to GNU addr2line to resolve function names given
an ELF binary compiled with debug information. The "-i" flag is
recommended to improve display in case of inlined functions. The *.dump
files generated during the build process can also be used.

The function works in AArch64 and AArch32. In AArch32 it only works in
A32 mode (without T32 interworking), which is enforced in the Makefile.

Sample output of a backtrace at EL3:

    BACKTRACE: START: function_name
    0: EL3: 0x798
    1: EL3: 0x538
    2: EL3: 0x550
    3: EL3: 0x55c
    4: EL3: 0x568
    5: EL3: 0x5a8
    6: EL3: 0xf4
    BACKTRACE: END: function_name

In order to enable it the new option ENABLE_BACKTRACE must be set to 1.
This option is set to 1 by default only in AArch64 debug builds. As
usual, it can be overridden by the platform makefile and in the build
command line.

Change-Id: Icaff39b0e5188329728be2f3c72b868b2368e794
Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
6 years agoAllow manually setting the AArch32 instruction set
Antonio Nino Diaz [Wed, 8 Aug 2018 15:28:43 +0000 (16:28 +0100)]
Allow manually setting the AArch32 instruction set

At the moment the AArch32 instruction set isn't specified in the command
line, which means that the compiler is free to choose the one it sees
fit. This decision may change between compiler versions, so it is better
to specify it manually.

The build option AARCH32_INSTRUCTION_SET has been introduced for this
reason. This option can be set to T32 or A32 to pass the correct flags
to the compiler.

The current behaviour is to default to T32 due to it's smaller size.

Change-Id: I02297eb1d9404b5868ff7c054fbff9b3cda7fdb6
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agoMerge pull request #1545 from npoushin/integration
Soby Mathew [Thu, 30 Aug 2018 04:37:32 +0000 (05:37 +0100)]
Merge pull request #1545 from npoushin/integration

maintainers: Update maintainer for sgi/sgm platforms

6 years agoMerge pull request #1514 from glneo/for-upstream-psci
Soby Mathew [Thu, 30 Aug 2018 04:37:13 +0000 (05:37 +0100)]
Merge pull request #1514 from glneo/for-upstream-psci

K3 PSCI Support

6 years agocontext_mgmt: Fix HANDLE_EA_EL3_FIRST implementation
Julius Werner [Tue, 28 Aug 2018 21:45:43 +0000 (14:45 -0700)]
context_mgmt: Fix HANDLE_EA_EL3_FIRST implementation

This patch fixes a bug in the context management code that causes it to
ignore the HANDLE_EA_EL3_FIRST compile-time option and instead always
configure SCR_EL3 to force all external aborts to trap into EL3. The
code used #ifdef to read compile-time option declared with add_define in
the Makefile... however, those options are always defined, they're just
defined to either 0 or 1, so #if is the correct syntax to check for
them. Also update the documentation to match.

This bug has existed since the Nov 2017 commit 76454abf4 (AArch64:
Introduce External Abort handling), which changed the
HANDLE_EA_EL3_FIRST option to use add_define.

Change-Id: I7189f41d0daee78fa2fcf4066323e663e1e04d3d
Signed-off-by: Julius Werner <jwerner@chromium.org>
6 years agomaintainers: Update maintainer for sgi/sgm platforms
Nariman Poushin [Wed, 29 Aug 2018 15:27:52 +0000 (16:27 +0100)]
maintainers: Update maintainer for sgi/sgm platforms

6 years agoMerge pull request #1543 from Yann-lms/drivers_st
Dimitris Papastamos [Tue, 28 Aug 2018 09:18:17 +0000 (10:18 +0100)]
Merge pull request #1543 from Yann-lms/drivers_st

maintainers: add drivers folders for STM32MP1

6 years agoMerge pull request #1538 from jts-arm/typos
Dimitris Papastamos [Tue, 28 Aug 2018 09:07:21 +0000 (10:07 +0100)]
Merge pull request #1538 from jts-arm/typos

Remove unnecessary casts

6 years agoMerge pull request #1536 from jts-arm/dsu
Dimitris Papastamos [Tue, 28 Aug 2018 09:07:02 +0000 (10:07 +0100)]
Merge pull request #1536 from jts-arm/dsu

DSU erratum 936184 workaround: bug fix

6 years agoMerge pull request #1531 from MISL-EBU-System-SW/marvell-plat-updates
Dimitris Papastamos [Tue, 28 Aug 2018 09:06:00 +0000 (10:06 +0100)]
Merge pull request #1531 from MISL-EBU-System-SW/marvell-plat-updates

plat: marvell: bl31: Update the early platform setup API

6 years agomaintainers: add drivers folders for STM32MP1
Yann Gautier [Tue, 28 Aug 2018 09:01:59 +0000 (11:01 +0200)]
maintainers: add drivers folders for STM32MP1

Folders drivers/st/ and include/drivers/st/ are added in maintainers.rst,
under STM32MP1 platform port.
This will allow notifications for the files modified there.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
6 years agoDSU erratum 936184 workaround: bug fix
John Tsichritzis [Wed, 22 Aug 2018 09:40:33 +0000 (10:40 +0100)]
DSU erratum 936184 workaround: bug fix

The initial implementation was corrupting registers that it shouldn't.
Now this is fixed.

Change-Id: Iaa407c18e668b2d9381391bf10d6876fe936aded
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
6 years agoRemove unnecessary casts
John Tsichritzis [Thu, 23 Aug 2018 08:57:54 +0000 (09:57 +0100)]
Remove unnecessary casts

Small patch which removes some redundant casts to (void *).

Change-Id: If1cfd68f2989bac1d39dbb3d1c31d4119badbc21
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
6 years agoti: k3: common: Add basic PSCI reset support
Andrew F. Davis [Thu, 24 May 2018 16:15:42 +0000 (11:15 -0500)]
ti: k3: common: Add basic PSCI reset support

Use TI-SCI messages to request reset from system controller firmware.

Signed-off-by: Andrew F. Davis <afd@ti.com>
6 years agoti: k3: common: Add basic PSCI core on support
Andrew F. Davis [Thu, 24 May 2018 16:15:42 +0000 (11:15 -0500)]
ti: k3: common: Add basic PSCI core on support

Use TI-SCI messages to request core start from system controller
firmware.

Signed-off-by: Andrew F. Davis <afd@ti.com>
6 years agoti: k3: drivers: ti_sci: Add support for Processor control
Andrew F. Davis [Fri, 4 May 2018 19:06:13 +0000 (19:06 +0000)]
ti: k3: drivers: ti_sci: Add support for Processor control

TI-SCI message protocol provides support for controlling of various
physical cores available in the SoC. In order to control which host is
capable of controlling a physical processor core, there is a processor
access control list that needs to be populated as part of the board
configuration data.

Introduce support for the set of TI-SCI message protocol APIs that
provide us with this capability of controlling physical cores.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
6 years agoti: k3: drivers: ti_sci: Add support for Core control
Andrew F. Davis [Fri, 4 May 2018 19:06:12 +0000 (19:06 +0000)]
ti: k3: drivers: ti_sci: Add support for Core control

Since system controller now has control over SoC power management, core
operation such as reset need to be explicitly requested to reboot the SoC.
Add support for this here.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
6 years agoti: k3: drivers: ti_sci: Add support for Clock control
Andrew F. Davis [Fri, 4 May 2018 19:06:11 +0000 (19:06 +0000)]
ti: k3: drivers: ti_sci: Add support for Clock control

TI-SCI message protocol provides support for management of various
hardware entities within the SoC.

In general, we expect to function at a device level of abstraction,
however, for proper operation of hardware blocks, many clocks directly
supplying the hardware block needs to be queried or configured.

Introduce support for the set of TI-SCI message protocol support that
provide us with this capability.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
6 years agoti: k3: drivers: ti_sci: Add support for Device control
Andrew F. Davis [Fri, 4 May 2018 19:06:10 +0000 (19:06 +0000)]
ti: k3: drivers: ti_sci: Add support for Device control

TI-SCI message protocol provides support for management of various
hardware entitites within the SoC.

We introduce the fundamental device management capability support to
the driver protocol as part of this change.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
6 years agoti: k3: drivers: Add support for TI System Control Interface protocol
Andrew F. Davis [Fri, 4 May 2018 19:06:09 +0000 (19:06 +0000)]
ti: k3: drivers: Add support for TI System Control Interface protocol

Texas Instrument's System Control Interface (TI-SCI) Message Protocol
is used in Texas Instrument's System on Chip (SoC) such as those
in K3 family AM654x SoCs to communicate between various compute
processors with a central system controller entity.

TI-SCI message protocol provides support for management of various
hardware entities within the SoC. Add support driver to allow
communication with system controller entity within the SoC.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
6 years agoti: k3: drivers: Add Secure Proxy driver
Andrew F. Davis [Fri, 4 May 2018 19:06:08 +0000 (19:06 +0000)]
ti: k3: drivers: Add Secure Proxy driver

Secure Proxy module manages hardware threads that are meant
for communication between the processor entities. Add support
for this here.

Signed-off-by: Andrew F. Davis <afd@ti.com>
6 years agoMerge pull request #1528 from antonio-nino-diaz-arm/an/libc
Dimitris Papastamos [Wed, 22 Aug 2018 13:40:50 +0000 (14:40 +0100)]
Merge pull request #1528 from antonio-nino-diaz-arm/an/libc

libc: Cleanup library

6 years agolibc: armclang: Implement compiler printf symbols
Antonio Nino Diaz [Thu, 16 Aug 2018 14:42:44 +0000 (15:42 +0100)]
libc: armclang: Implement compiler printf symbols

armclang replaces calls to printf by calls to one of the symbols
__0printf, __1printf or __2printf. This patch adds new functions with
these names that internally call printf so that the Trusted Firmware can
be compiled with this compiler.

Change-Id: I06a0e3e5001232fe5b2577615666ddd66e81eef0
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Use printf and snprintf across codebase
Antonio Nino Diaz [Thu, 16 Aug 2018 15:46:06 +0000 (16:46 +0100)]
libc: Use printf and snprintf across codebase

tf_printf and tf_snprintf are now called printf and snprintf, so the
code needs to be updated.

Change-Id: Iffeee97afcd6328c4c2d30830d4923b964682d71
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Move tf_printf and tf_snprintf to libc
Antonio Nino Diaz [Wed, 15 Aug 2018 16:02:28 +0000 (17:02 +0100)]
libc: Move tf_printf and tf_snprintf to libc

Change their names to printf and snprintf. They are much smaller than
the previous versions we had, which makes them better suited for the
Trusted Firmware.

Change-Id: Ia872af91b7b967c47fce012eccecede7873a3daf
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agotf_printf: Return number of printed characters
Antonio Nino Diaz [Wed, 15 Aug 2018 15:52:32 +0000 (16:52 +0100)]
tf_printf: Return number of printed characters

The C standard says that printf() has to return the number of characters
it has printed.

Change-Id: I0ef50b1d6766d140724ac0a2fa2c5d023431f984
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Fix all includes in codebase
Antonio Nino Diaz [Thu, 16 Aug 2018 15:52:57 +0000 (16:52 +0100)]
libc: Fix all includes in codebase

The codebase was using non-standard headers. It is needed to replace
them by the correct ones so that we can use the new libc headers.

Change-Id: I530f71d9510cb036e69fe79823c8230afe890b9d
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Cleanup SCC headers
Antonio Nino Diaz [Tue, 14 Aug 2018 12:39:29 +0000 (13:39 +0100)]
libc: Cleanup SCC headers

Only leave the parts relevant to the Trusted Firmware.

Change-Id: I0444c16e402f6c1629211d03bf6cb32ca3dbcf59
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Add AArch32 and AArch64 headers
Antonio Nino Diaz [Wed, 15 Aug 2018 18:51:09 +0000 (19:51 +0100)]
libc: Add AArch32 and AArch64 headers

Change-Id: I4f58bb4660078c9bc76d2826c90b2fa711719a3e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Introduce files from SCC
Antonio Nino Diaz [Fri, 17 Aug 2018 09:45:47 +0000 (10:45 +0100)]
libc: Introduce files from SCC

Taken from http://git.simple-cc.org/scc/ from the following commit:

67508ad14af314cea2229783d3c084f28c41daf0

Permission has been granted from the author to use them under the
license BSD-3-Clause instead of ISC.

Change-Id: I65c0ce3ab60c49d34a57533af12a74bd7bde88e5
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Cleanup FreeBSD files
Antonio Nino Diaz [Mon, 13 Aug 2018 18:41:17 +0000 (19:41 +0100)]
libc: Cleanup FreeBSD files

Remove code specific to FreeBSD so that they can be used in this
repository.

Change-Id: I5c11eb5b3c05a7fb91aed08371a1f7a0e6122a94
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Import files from FreeBSD
Antonio Nino Diaz [Mon, 13 Aug 2018 18:39:40 +0000 (19:39 +0100)]
libc: Import files from FreeBSD

From commit aafd1cf4235d78ce85b76d7da63e9589039344b3:

- sys/sys/endian.h
- sys/arm/include/endian.h
- sys/arm64/include/endian.h
- sys/sys/errno.h
- lib/libc/strchr.c
- lib/libc/strcmp.c
- lib/libc/strncmp.c
- lib/libc/strnlen.c

strcasecmp() hasn't been imported.

Change-Id: I8a0787aec9ba8960a008fb5c66f7a73c84919b93
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Introduce cdefs.h, assert.h and strlen.c
Antonio Nino Diaz [Mon, 13 Aug 2018 18:51:26 +0000 (19:51 +0100)]
libc: Introduce cdefs.h, assert.h and strlen.c

Change-Id: I76091d52571f1950111c4b1670d5fc3883607715
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Cleanup remaining files
Antonio Nino Diaz [Thu, 16 Aug 2018 13:53:05 +0000 (14:53 +0100)]
libc: Cleanup remaining files

The existing files had some style problems that this patch fixes.

Change-Id: I794e0d96e52f8da0ffa0d70a41f36c4432b4e563
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Remove printf-like functions
Antonio Nino Diaz [Wed, 15 Aug 2018 15:54:55 +0000 (16:54 +0100)]
libc: Remove printf-like functions

They are too big for the Trusted Firmware, and it can be confusing to
have two versions of the same functions with different names. tf_printf
and tf_snprintf will replace them in the next patch.

Change-Id: I978414ac169cc3156e249549ef101a70eb31a295
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Remove sscanf() and timingsafe_bcmp()
Antonio Nino Diaz [Fri, 17 Aug 2018 08:46:43 +0000 (09:46 +0100)]
libc: Remove sscanf() and timingsafe_bcmp()

sscanf() is unused and it doesn't work, so it doesn't make sense to
keep it.

timingsafe_bcmp() isn't used anywhere.

Change-Id: Ib5d28ff21d0f3ccc36c5c0fb5474b3384105cf80
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agolibc: Remove non-Arm files
Antonio Nino Diaz [Tue, 14 Aug 2018 12:17:41 +0000 (13:17 +0100)]
libc: Remove non-Arm files

Remove all files that don't have only Arm copyright. This is the first
step to cleanup the C library in this repository. They will be re-added
in the following patches.

Change-Id: I72c40a1620d1df3228fc397ec695d569a20245fd
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
6 years agoMerge pull request #1532 from jeenu-arm/misra-fixes
Dimitris Papastamos [Wed, 22 Aug 2018 09:25:41 +0000 (10:25 +0100)]
Merge pull request #1532 from jeenu-arm/misra-fixes

MISRA fixes

6 years agoMerge pull request #1533 from jeenu-arm/mpam
Dimitris Papastamos [Wed, 22 Aug 2018 09:24:24 +0000 (10:24 +0100)]
Merge pull request #1533 from jeenu-arm/mpam

AArch64: Enable MPAM for lower ELs

6 years agoMerge pull request #1530 from antonio-nino-diaz-arm/an/rpi3-deprecated
Dimitris Papastamos [Wed, 22 Aug 2018 09:24:06 +0000 (10:24 +0100)]
Merge pull request #1530 from antonio-nino-diaz-arm/an/rpi3-deprecated

rpi3: Migrate from deprecated APIs

6 years agoMerge pull request #1526 from robertovargas-arm/arm-memprotect
Dimitris Papastamos [Wed, 22 Aug 2018 09:23:52 +0000 (10:23 +0100)]
Merge pull request #1526 from robertovargas-arm/arm-memprotect

memprotect: Move files to specific platform makefiles

6 years agomemprotect: Move files to specific platform makefiles
Roberto Vargas [Mon, 6 Aug 2018 12:35:31 +0000 (13:35 +0100)]
memprotect: Move files to specific platform makefiles

All the arm platforms were including the files related to
mem-protect. This configuration generates some problems
with new platforms that don't support such functionality,
and for that reason this patch moves these files to the
platform specific makefiles.

Change-Id: I6923e5224668b76667795d8e11723cede7979b1e
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
6 years agoMerge pull request #1388 from vwadekar/report-cve-2017-5715
Dimitris Papastamos [Mon, 20 Aug 2018 13:57:39 +0000 (14:57 +0100)]
Merge pull request #1388 from vwadekar/report-cve-2017-5715

cpus: denver: report CVE_2017_5715 mitigation to higher layers

6 years agoMerge pull request #1524 from danielboulby-arm/db/ReclaimInit
Dimitris Papastamos [Mon, 20 Aug 2018 08:38:17 +0000 (09:38 +0100)]
Merge pull request #1524 from danielboulby-arm/db/ReclaimInit

rockchip: Add plat_is_my_cpu_primary function

6 years agoMerge pull request #1523 from jts-arm/dsu
Dimitris Papastamos [Mon, 20 Aug 2018 08:37:16 +0000 (09:37 +0100)]
Merge pull request #1523 from jts-arm/dsu

DSU erratum 936184 workaround

6 years agoSiP: MISRA fixes for execution state switch
Jeenu Viswambharan [Thu, 2 Aug 2018 09:14:12 +0000 (10:14 +0100)]
SiP: MISRA fixes for execution state switch

These changes address most of the required MISRA rules. In the process,
some from generic code is also fixed.

No functional changes.

Change-Id: I707dbec9b34b802397e99da2f5ae738165d6feba
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
6 years agoRAS: MISRA fixes
Jeenu Viswambharan [Thu, 2 Aug 2018 09:14:12 +0000 (10:14 +0100)]
RAS: MISRA fixes

These changes address most of the required MISRA rules. In the process,
some from generic code is also fixed.

No functional changes.

Change-Id: I76cacf6e1d73b09510561b5090c2bb66d81bec88
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
6 years agoEHF: MISRA fixes
Jeenu Viswambharan [Thu, 2 Aug 2018 09:14:12 +0000 (10:14 +0100)]
EHF: MISRA fixes

These changes address most of the required MISRA rules. In the process,
some from generic code are also fixed.

No functional changes.

Change-Id: I19786070af7bc5e1f6d15bdba93e22a4451d8fe9
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
6 years agoSDEI: Fix locking issues
Jeenu Viswambharan [Fri, 10 Aug 2018 10:05:31 +0000 (11:05 +0100)]
SDEI: Fix locking issues

The event lock for a shared event was being unlocked twice, and the
locking sequence for event complete was misplaced. This patch fixes both
issues.

Change-Id: Ie2fb15c6ec240af132d7d438946ca160bd5c63dc
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
6 years agoSDEI: MISRA fixes
Jeenu Viswambharan [Thu, 2 Aug 2018 09:14:12 +0000 (10:14 +0100)]
SDEI: MISRA fixes

These changes address most of the required MISRA rules. In the process,
some from generic code is also fixed.

No functional changes.

Change-Id: I6235a355e006f0b1c7c1c4d811b3964a64d0434f
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
6 years agoAArch64: Enable MPAM for lower ELs
Jeenu Viswambharan [Tue, 31 Jul 2018 15:13:33 +0000 (16:13 +0100)]
AArch64: Enable MPAM for lower ELs

Memory Partitioning And Monitoring is an Armv8.4 feature that enables
various memory system components and resources to define partitions.
Software running at various ELs can then assign themselves to the
desired partition to control their performance aspects.

With this patch, when ENABLE_MPAM_FOR_LOWER_ELS is set to 1, EL3 allows
lower ELs to access their own MPAM registers without trapping to EL3.
This patch however doesn't make use of partitioning in EL3; platform
initialisation code should configure and use partitions in EL3 if
required.

Change-Id: I5a55b6771ccaa0c1cffc05543d2116b60cbbcdcd
Co-authored-by: James Morse <james.morse@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>