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>
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>
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>
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>
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>
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>
Small patch which removes some redundant casts to (void *).
Change-Id: If1cfd68f2989bac1d39dbb3d1c31d4119badbc21
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
The Raspberry Pi 3 port doesn't actually depend on any Arm platform
code, so the dependencies can be removed.
Change-Id: Ic2f47f5001bebde3862815b1d880a169d82b3f65
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
This function is required for platforms where
COLD_BOOT_SINGLE_CPU=0 however it was missing from rockchip
platforms
Change-Id: I32a85f226a4f22085a27113903f34bdb6f28dbcc
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
The translation library is useful elsewhere. Even though this repository
doesn't exercise the EL2 support of the library, it is better to have it
here as well to make it easier to maintain.
enable_mmu_secure() and enable_mmu_direct() have been deprecated. The
functions are still present, but they are behind ERROR_DEPRECATED and
they call the new functions enable_mmu_svc_mon() and
enable_mmu_direct_svc_mon().
Change-Id: I13ad10cd048d9cc2d55e0fff9a5133671b67dcba
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Functions provided by stdio.h such as printf and sprintf are available
in the codebase, but they add a lot of code to the final image if they
are used:
- AArch64: ~4KB
- AArch32: ~2KB in T32, ~3KB in A32
tf_printf and tf_snprintf are a lot more simple, but it is preferable
to use them when possible because they are also used in common code.
Change-Id: Id09fd2b486198fe3d79276e2c27931595b7ba60e
Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Add support for System Guidance for Mobile platform SGM775
Change-Id: I2442a50caae8f597e5e5949cd48f695cf75d9653
Signed-off-by: Nariman Poushin <nariman.poushin@linaro.org>
In css platforms where the cpu/cluster management is done by the hardware,
software does need to issue certain scmi requests.
This patch wraps those scmi calls around the HW_ASSISTED_COHERENCY
build option to remove them on platforms that have this hardware support.
Change-Id: Ie818e234484ef18549aa7f977aef5c3f0fc26c27
Signed-off-by: Deepak Pandey <Deepak.Pandey@arm.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
Signed-off-by: Nariman Poushin <nariman.poushin@linaro.org>
This omission causes a build error as the definition for
arm_tzc_regions_info_t is needed from plat_arm.h
Change-Id: I26935ee90d3e36ab6a016ff2c4eee4413df3e4e8
Signed-off-by: Nariman Poushin <nariman.poushin@linaro.org>
The Arm SGI platforms can switch to using SCMI. So enable support for
SCMI and remove portions of code that would be unused after switching
to SCMI.
Change-Id: Ifd9e1c944745f703da5f970b5daf1be2b07ed14e
Signed-off-by: Chandni Cherukuri <chandni.cherukuri@arm.com>
Bryan O'Donoghue
Jun Nie
Antonio Nino Diaz
Dimitris Papastamos
Soby Mathew
John Tsichritzis
Andrew F. Davis
Roberto Vargas
Jeenu Viswambharan
Konstantin Porotchkin
Daniel Boulby
Haojian Zhuang
Nariman Poushin
Deepak Pandey
Chandni Cherukuri