Commit Graph

241 Commits

Author SHA1 Message Date
kalyani chidambaram fdc08e2ecb Tegra210: SiP handlers to allow PMC access
This patch adds SiP handler for Tegra210 platforms to service
read/write requests for PMC block. None of the secure registers
are accessible to the NS world though.

Change-Id: I7dc1f10c6a6ee6efc642ddcfb1170fb36d3accff
Signed-off-by: kalyani chidambaram <kalyanic@nvidia.com>
2019-01-31 08:49:05 -08:00
Varun Wadekar 2d5560f928 Tegra210: power off all DMA masters before System Suspend entry
This patch puts all the DMA masters in reset before starting the System
Suspend sequence. This helps us make sure that there are no rogue agents
in the system trying to over-write the SC7 Entry Firmware with their own.

Change-Id: I7eb39999d229951e612fbfeb9f86c4efb8f98b5a
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:48:56 -08:00
Varun Wadekar 3ca3c27cad Tegra: support for System Suspend using sc7entry-fw binary
This patch adds support to enter System Suspend on Tegra210 platforms
without the traditional BPMP firmware. The BPMP firmware will no longer
be supported on Tegra210 platforms and its functionality will be
divided across the CPU and sc7entry-fw.

The sc7entry-fw takes care of performing the hardware sequence required
to enter System Suspend (SC7 power state) from the COP. The CPU is required
to load this firmware to the internal RAM of the COP and start the sequence.
The CPU also make sure that the COP is off after cold boot and is only
powered on when we want to start the actual System Suspend sequence.

The previous bootloader loads the firmware to TZDRAM and passes its base and
size as part of the boot parameters. The EL3 layer is supposed to sanitize
the parameters before touching the firmware blob.

To assist the warmboot code with the PMIC discovery, EL3 is also supposed to
program PMC's scratch register #210, with appropriate values. Without these
settings the warmboot code wont be able to get the device out of System
Suspend.

Change-Id: I5a7b868512dbfd6cfefd55acf3978a1fd7ebf1e2
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:48:36 -08:00
Varun Wadekar 93e3b0f34b Tegra210: remove support for cluster power down
This patch removes support for powering down a CPU cluster on
Tegra210 platforms as none of them actually use it.

Change-Id: I9665634cf2b5b7b8a1b5a2700cae152dc9165fe3
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:48:24 -08:00
Varun Wadekar 7db077f2e3 Tegra210: support for cluster idle from the CPU
This patch adds support to enter/exit to/from cluster idle power
state on Tegra210 platforms that do not load BPMP firmware.

The CPU initates the cluster idle sequence on the last standing
CPU, by following these steps:

Entry
-----
* stop other CPUs from waking up
* program the PWM pinmux to tristate for OVR PMIC
* program the flow controller to enter CC6 state
* skip L1 $ flush during cluster power down, as L2 $ is inclusive
  of L1 $ on Cortex-A57 CPUs

Exit
----
* program the PWM pinmux to un-tristate for OVR PMIC
* allow other CPUs to wake up

This patch also makes sure that cluster idle state entry is not
enabled until CL-DVFS is ready.

Change-Id: I54cf31bf72b4a09d9bf9d2baaed6ee5a963c7808
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:48:09 -08:00
Varun Wadekar a7a63e0ee5 Tegra: pmc: helper function to find last ON CPU
This patch adds a helper function to find the last standing CPU
in a cluster.

Change-Id: Id018f1958f458c772c7b0c52af8ddf7532b1cec5
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:48:00 -08:00
Steven Kao 1d11f73e58 Tegra: platform dependent address space sizes
This patch moves the PLAT_PHY_ADDR_SPACE_SIZE & PLAT_VIRT_ADDR_SPACE
macros to tegra_def.h, to define the virtual/physical address space
size on the platform.

Change-Id: I1c5d264c7ffc1af0e7b14cc16ae2c0416efc76f6
Signed-off-by: Steven Kao <skao@nvidia.com>
2019-01-31 08:47:51 -08:00
Varun Wadekar 51a5e593d6 Tegra210: Enable WDT_CPU interrupt for FIQ Debugger
This patch enables the watchdog timer's interrupt as an FIQ
interrupt to the CPU. The interrupt generated by the watchdog
is connected to the flow controller for power management reasons,
and needs to be routed to the GICD for it to reach the CPU.

Change-Id: I9437b516da2c5d763eca72694ed7f3c7389b3d9e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:47:29 -08:00
Varun Wadekar 1483d4e0a4 Tegra: flowctrl: helper functions to assist with cluster power states
This patch adds helper functions to help platforms with cluster state entry
and exit decisions.

* tegra_fc_ccplex_pgexit_lock(): lock CPU power ungate
* tegra_fc_ccplex_pgexit_unlock(): unlock CPU power ungate
* tegra_fc_is_ccx_allowed(): CCx state entry allowed on this CPU?

Change-Id: I6490d34bf380dc03ae203eb3028f61984f06931c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:47:15 -08:00
Varun Wadekar 2ed09b1ee2 Tegra: flowctrl: support to enable/disable WDT's legacy FIQ routing
On earlier Tegra platforms, e.g. Tegra210, the watchdog timer's FIQ interrupt
is not direclty wired to the GICD. It goes to the flow controller instead, for
power state management. But the flow controller can route the FIQ to the GICD,
as a PPI, which can then get routed to the target CPU.

This patch adds routines to enable/disable routing the legacy FIQ used by
the watchdog timers, to the GICD.

Change-Id: Idd07c88c8d730b5f0e93e3a6e4fdc59bdcb2161b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:46:25 -08:00
Jeetesh Burman 3e28e93540 Tegra: SiP: set GPU in reset after vpr resize
Whenever the VPR memory is resized, the GPU is put into reset first
and then the new VPR parameters are programmed to the memory controller
block. There exists a scenario, where the GPU might be out before we
program the new VPR parameters. This means, the GPU would still be
using older settings and leak secrets.

This patch puts the GPU back into reset, if it is out of reset after
resizing VPR, to mitigate this hole.

Change-Id: I38a1000e3803f80909efcb02e27da4bd46909931
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>
2019-01-31 08:46:15 -08:00
steven kao ff605ba2ee Tegra: bpmp_ipc: support to enable/disable module clocks
This patch adds support to the bpmp_ipc driver to allow clients to
enable/disable clocks to hardware blocks. Currently, the API only
supports SE devices.

Change-Id: I9a361e380c0bcda59f5a92ca51c86a46555b2e90
Signed-off-by: steven kao <skao@nvidia.com>
2019-01-31 08:45:49 -08:00
Varun Wadekar 8510376c26 Tegra: fix offset used to dump GICD registers from crash handler
The GICD registers are 32-bits wide whereas the crash handler was reading
them as 64-bit ones. This patch fixes the code to read the GICD registers,
32-bits at a time, from the paltform's crash handler.

Change-Id: If3d6608529684ecc02be6a1b715012310813b2a4
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:45:41 -08:00
Varun Wadekar 0887026ec1 Tegra: default platform handler for the CPU_STANDBY state
This patch adds a default implementation for the platform specific
CPU standby power handler. Tegra SoCs can override this handler
with their own implementations.

Change-Id: I91e513842f194b1e2b1defa2d833bb4d9df5f06b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-31 08:45:32 -08:00
Pritesh Raithatha 28f45bb83c Tegra186: smmu: add support for backup multiple smmu regs
Modifying smmu macros to pass base address of smmu so that it can be
used with multiple smmus.

Added macro for combining smmu backup regs that can be used for multiple
smmus.

Change-Id: I4f3bb83d66d5df14a3b91bc82f7fc26ec8e4592e
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
2019-01-31 08:45:22 -08:00
Dilan Lee 3e1923d9cf Tegra: add 'late' platform setup handler
This patch adds a platform setup handler that gets called after
the MMU is enabled. Platforms wanting to make use of this handler
should declare 'plat_late_platform_setup' handler in their platform
files, to override the default weakly defined handler.

Change-Id: Ibc97a2e5a24608ddea856d0bd543a9d5876f604c
Signed-off-by: Dilan Lee <dilee@nvidia.com>
2019-01-23 10:33:08 -08:00
Varun Wadekar 539c62d7b3 Tegra186: save system suspend entry marker to TZDRAM
This patch adds support to save the system suspend entry and exit
markers to TZDRAM to help the trampoline code decide if the current
warmboot is actually an exit from System Suspend.

The Tegra186 platform handler sets the system suspend entry marker
before entering SC7 state and the trampoline flips the state back to
system resume, on exiting SC7.

Change-Id: I29d73f1693c89ebc8d19d7abb1df1e460eb5558e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-23 10:32:55 -08:00
Varun Wadekar 889c07c7b1 Tegra186: helper functions for CPU rst handler and SMMU ctx offset
This patch adds a helper function to get the SMMU context's offset
and uses another helper function to get the CPU trampoline offset.
These helper functions are used by the System Suspend entry sequence
to save the SMMU context and CPU reset handler to TZDRAM.

Change-Id: I95e2862fe37ccad00fa48ec165c6e4024df01147
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-23 10:32:53 -08:00
Steven Kao 601a8e5495 Tegra: rename secure scratch register macros
This patch renames all the secure scratch registers to reflect their
usage.

This is a list of all the macros being renamed:

- SECURE_SCRATCH_RSV1_* -> SCRATCH_RESET_VECTOR_*
- SECURE_SCRATCH_RSV6 -> SCRATCH_SECURE_BOOTP_FCFG
- SECURE_SCRATCH_RSV11_* -> SCRATCH_SMMU_TABLE_ADDR_*
- SECURE_SCRATCH_RSV53_* -> SCRATCH_BOOT_PARAMS_ADDR_*
- SECURE_SCRATCH_RSV55_* -> SCRATCH_TZDRAM_ADDR_*

NOTE: Future SoCs will have to define these macros to
      keep the drivers functioning.

Change-Id: Ib3ba40dd32e77b92b47825f19c420e6fdfa8b987
Signed-off-by: Steven Kao <skao@nvidia.com>
2019-01-23 10:32:48 -08:00
Varun Wadekar d5bd0de627 Tegra: memctrl_v2: platform handler for TZDRAM settings
The Tegra memctrl driver sets up the TZDRAM fence during boot and
system suspend exit. This patch provides individual platforms with
handlers to perform platform specific steps, e.g. enable encryption,
save base/size to secure scratch registers.

Change-Id: Ifaa2e0eac20b50f77ec734256544c36dd511bd63
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-23 10:32:46 -08:00
Varun Wadekar 7191566c69 Tegra186: secondary: fix MISRA violations for Rules 8.6, 11.1
This patch fixes the following MISRA violations:

Rule 8.6: Externally-linked object or function has "no" definition(s).
Rule 11.1: A cast shall not convert a pointer to a function to
any other type.

Change-Id: Ic1f6fc14c744e54ff782c6987dab9c9430410f5e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-23 10:32:41 -08:00
Varun Wadekar 26e2b93a85 Tegra: bpmp_ipc: IPC driver to communicate with BPMP firmware
This patch adds the driver to communicate with the BPMP firmware on Tegra
SoCs, starting Tegra186. BPMP firmware is responsible for clock enable/
disable requests, module resets among other things.

MRQ is short for Message ReQuest. This is the general purpose, multi channel
messaging protocol that is widely used to communicate with BPMP. This is further
divided into a common high level protocol and a peer-specific low level protocol.
The higher level protocol specifies the peer identification, channel definition
and allocation, message structure, message semantics and message dispatch process
whereas the lower level protocol defines actual message transfer implementation
details. Currently, BPMP supports two lower level protocols - Token Mail Operations
(TMO), IVC Mail Operations (IMO).

This driver implements the IMO protocol. IMO is implemented using the IVC (Inter-VM
Communication) protocol which is a lockless, shared memory messaging queue management
protocol.

The IVC peer is expected to perform the following as part of establishing a connection
with BPMP.

1. Initialize the channels with tegra_ivc_init() or its equivalent.
2. Reset the channel with tegra_ivc_channel_reset. The peer should also ensure that
   BPMP is notified via the doorbell.
3. Poll until the channel connection is established [tegra_ivc_channel_notified() return
   0]. Interrupt BPMP with doorbell each time after tegra_ivc_channel_notified() return
   non zero.

The IPC driver currently supports reseting the GPCDMAand XUSB_PADCTL hardware blocks. In
future, more hardware blocks would be supported.

Change-Id: I52a4bd3a853de6c4fa410904b6614ff1c63df364
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-23 10:32:12 -08:00
Steven Kao d6306d14bd Tegra: memctrl_v2: allow CPU accesses to TZRAM
This patch enables CPU access configuration register to allow
accesses to the TZRAM aperture on chips after Tegra186.

Change-Id: I0898582f8bd6fd35360ecf8ca5cee21fe35f7aab
Signed-off-by: Steven Kao <skao@nvidia.com>
2019-01-23 10:31:25 -08:00
Harvey Hsieh b886c7c5f4 Tegra: memctrl_v2: pack TZDRAM base to RSVD55_SCRATCH
This patch saves the TZDRAM_BASE value to secure RSVD55
scratch register. The warmboot code uses this register to
restore the settings on exiting System Suspend.

Change-Id: Id76175c2a7d931227589468511365599e2908411
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
2019-01-23 10:31:19 -08:00
Puneet Saxena ab2eb455d6 Tegra: memctrl_v2: platform handlers to program MSS
Introduce platform handlers to program the MSS settings.
This allows the current driver to scale to future chips.

Change-Id: I40a27648a1a3c73b1ce38dafddc1babb6f0b0d9b
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
2019-01-23 10:30:54 -08:00
Harvey Hsieh 650d9c521e Tegra: memctrl: clean MC INT status before exit to bootloader
This patch cleans the Memory controller's interrupt status
register, before exiting to the non-secure world during
cold boot. This is required as we observed that the MC's
arbitration bit is set before exiting the secure world.

Change-Id: Iacd01994d03b3b9cbd7b8a57fe7ab5b04e607a9f
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
2019-01-18 09:21:51 -08:00
Harvey Hsieh 70da35b0df Tegra: memctrl_v2: pack TZDRAM base into SCRATCH54_LO
This patch moves the TZDRAM base address to SCRATCH55_LO due
to security concerns. The HI and LO address bits are packed
into SCRATCH55_LO for the warmboot firmware to restore.
SCRATCH54_HI is still being used for backward compatibility,
but would be removed eventually.

The scratch registers are populated as:
* RSV55_0 = CFG1[12:0] | CFG0[31:20]
* RSV55_1 = CFG3[1:0]
* RSV54_1 = CFG1[12:0]

Change-Id: Idc20d165d8117488010fcc8dfd946f7ad475da58
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
2019-01-18 09:21:51 -08:00
Samuel Payne 620b2233bc Tegra210_B01: SC7: Select RNG mode based on ECID
If ECID is valid, we can use force instantiation
otherwise, we should use reseed for random data
generation for RNG operations in SE context save
DNI because we are not keeping software save
sequence in main.

Change-Id: I73d650e6f45db17b780834b8de4c10501e05c8f3
Signed-off-by: Samuel Payne <spayne@nvidia.com>
2019-01-18 09:21:51 -08:00
Marvin Hsu 5ed1755ad4 Tegra210B01: SE/SE2 and PKA1 context save (SW)
This change ports the software based SE context save routines.
The software implements the context save sequence for SE/SE2 and
PKA1. The context save routine is intended to be invoked from
the ATF SC7 entry.

Change-Id: I9aa156d6e7e22a394bb10cb0c3b05fc303f08807
Signed-off-by: Marvin Hsu <marvinh@nvidia.com>
2019-01-18 09:21:51 -08:00
Varun Wadekar 087cf68a7f Tegra: lib: library for profiling the cold boot path
The non secure world would like to profile the boot path for
the EL3 and S-EL1 firmwares. To allow it to do that, a non-secure
DRAM region (4K) is allocated and the base address is passed to
the EL3 firmware.

This patch adds a library to allow the platform code to store the
tag:timestamp pair to the shared memory. The tegra platform code
then uses the `record` method to add timestamps.

Original change by Akshay Sharan <asharan@nvidia.com>

Change-Id: Idbbef9c83ed84a508b04d85a6637775960dc94ba
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-18 09:21:51 -08:00
Anthony Zhou aa64c5fb67 Tegra: fix defects flagged by MISRA Rule 10.3
MISRA Rule 10.3, the value of an expression shall not be assigned to
an object with a narrower essential type or of a different essential
type category.

The essential type of a enum member is anonymous enum, the enum member
should be casted to the right type when using it.

Both UL and ULL suffix equal to uint64_t constant in compiler
aarch64-linux-gnu-gcc, to avoid confusing, only keep U and ULL suffix
in platform code. So in some case, cast a constant to uint32_t is
necessary.

Change-Id: I1aae8cba81ef47481736e7f95f53570de7013187
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2019-01-18 09:21:50 -08:00
Samuel Payne 99359f1d99 Tegra210: se: enable entropy/SE clocks before system suspend
This patch enables clocks to the SE and Entropy block and gets them
out of reset, before starting the context save operation.

Change-Id: Ic196be8fb833dfd04c0e8d460c07058429999613
Signed-off-by: Samuel Payne <spayne@nvidia.com>
2019-01-18 09:21:50 -08:00
Steven Kao bc5a86f767 Tegra: smmu: add a hook to get number of devices
This patch adds a hook to get the number of smmu devices and
removes the NUM_SMMU_DEVICES macro.

Change-Id: Ia8dba7e9304224976b5da688b9e4b5438f11cc41
Signed-off-by: Steven Kao <skao@nvidia.com>
2019-01-18 09:21:50 -08:00
Steven Kao 75516c3eb0 Tegra: read-modify-write ACTLR_ELx registers
This patch changes direct writes to ACTLR_ELx registers to use
read-modify-write instead.

Change-Id: I6e0eaa6974583f3035cb3724088f3f1c849da229
Signed-off-by: Steven Kao <skao@nvidia.com>
2019-01-18 09:21:50 -08:00
Samuel Payne 86d0a52b84 Tegra210: se: disable SMMU before suspending SE block
This patch disables SMMU hardware before suspending the SE
block, for the context save operation to complete. The NS
word will re-enable SMMU when we exit System Suspend.

Change-Id: I4d5cd982ea6780db5c38b124550d847e3928c60d
Signed-off-by: Samuel Payne <spayne@nvidia.com>
2019-01-18 09:21:50 -08:00
Anthony Zhou 61beb3e016 Tegra: common: drivers: fix MISRA defects
Main fixes:

Add suffix U for constant [Rule 10.1]

Match the operands type [Rule 10.4]

Use UL replace U for that constant define that need do "~"
operation [Rule 12.4]

Voided non c-library functions whose return types are not used
 [Rule 17.7]

Change-Id: Ia1e814ca3890eab7904be9c79030502408f30936
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2019-01-18 09:21:50 -08:00
Anthony Zhou b36aea5a41 Tegra: pm: fix MISRA defects
Main fixes:

* Use int32_t replace int, use uint32_t replace unsign int
  [Rule 4.6]
* Add function define to header file [Rule 8.4]
* Added curly braces ({}) around if statements in order to
  make them compound [Rule 15.6]
* Voided non c-library functions whose return types are not used
  [Rule 17.7]

Change-Id: Ifa3ba4e75046697cfede885096bee9a30efe6519
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2019-01-18 09:21:50 -08:00
Varun Wadekar fcf23a1419 Tegra: fix MISRA defects in tegra_bl31_setup.c
Main fixes:

Add parentheses to avoid implicit operator precedence [Rule 12.1]

Fixed if statement conditional to be essentially boolean [Rule 14.4]

Added curly braces ({}) around if statements in order to
make them compound [Rule 15.6]

Voided non c-library functions whose return types are not used [Rule 17.7]

Bug 200272157

Change-Id: Ic3ab5a3de95aeb6d2265df940f7fb35ea0f19ab0
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2019-01-18 09:21:50 -08:00
Varun Wadekar 647d4a035a Tegra: gpcdma: driver for general purpose DMA
This patch adds the driver for the general purpose DMA hardware
block on newer Tegra SoCs. The GPCDMA is a special purpose DMA
used to speed up memory copy operations to/from DRAM and TZSRAM.

This patch introduces a macro 'USE_GPC_DMA' to allow platforms
to override CPU based memory operations.

Change-Id: I3170d409c83b77e785437b1002a8d70188fabbeb
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-18 09:21:50 -08:00
Harvey Hsieh c195fec698 Tegra210: skip the BTB invalidate workaround for B01 SKUs
This patch skips the BTB invalidate workaround for Tegra210-B01 chips, as
they have already been fixed in the hardware. To allow the .S file to
include macros, add proper guards to tegra_platform.h.

Change-Id: I0826d3c54faeffc9cb0709331f47cbdf25d4b653
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
2019-01-16 10:20:32 -08:00
Krishna Reddy b86e691eb3 Tegra186: memctrl_v2: Set MC clients ordering as per client needs
Set MC Clients ordering as per the clients needs(ordered, BW, ISO/non-ISO)
based on the latest info received from HW team as a part of BW issues debug.

SMMU Client config register are obsolete from T186. Clean up the unnecessary
register definitions and programming of these registers.
Cleanup unnecessary macros as well.

Change-Id: I0d28ae8842a33ed534f6a15bfca3c9926b3d46b2
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
2019-01-16 10:20:26 -08:00
Varun Wadekar 223844af41 Tegra210: memmap all the IRAM memory banks
This patch memmaps all the IRAM memory banks during boot. The BPMP
firmware might place the channels in any of the IRAMs, so it is better
to map all the banks to avoid surprises.

Change-Id: Ia009a65d227ee50fbb23e511ce509daf41b877ee
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-16 10:20:19 -08:00
Anthony Zhou d6102295c5 Tegra186: setup: fix defects flagged by MISRA scan
Main fixes:

Added explicit casts (e.g. 0U) to integers in order for them to be
compatible with whatever operation they're used in [Rule 10.1]

Force operands of an operator to the same type category [Rule 10.4]

Added curly braces ({}) around if statements in order to
make them compound [Rule 15.6]

Change-Id: I4840c3122939f736113d61f1462af3bd7b0b5085
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2019-01-16 10:19:52 -08:00
Anthony Zhou 214e8464ac Tegra186: PM: fix MISRA defects in plat_psci_handlers.c
Main fixes:

Added explicit casts (e.g. 0U) to integers in order for them to be
compatible with whatever operation they're used in [Rule 10.1]

convert object type to match the type of function parameters
[Rule 10.3]

Force operands of an operator to the same type category [Rule 10.4]

Fix implicit widening of composite assignment [Rule 10.6]

Change-Id: I5840a07f37beefc3326ac56d0b4a4701602bd8a8
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2019-01-16 10:19:27 -08:00
Anthony Zhou 592035d05b Tegra186: secondary: fix MISRA defects
Main fixes:

Added explicit casts (e.g. 0U) to integers in order for them to be
compatible with whatever operation they're used in [Rule 10.1]

Force operands of an operator to the same type category [Rule 10.4]

Voided non c-library functions whose return types are not used [Rule 17.7]

Change-Id: I758e7ef6d45dd2edf4cd5580e2af15219246e75c
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2019-01-16 10:12:35 -08:00
Varun Wadekar dd1a71f1c2 Tegra210: bpmp: power management interface
This patch adds the driver to communicate with the BPMP processor
for power management use cases. BPMP controls the entry into cluster
and system power states. The Tegra210 platform port queries the BPMP
to calculate the target state for the cluster. In case BPMP does not
allow CCx entry, the core enters a power down state.

Change-Id: I9c40aef561607a0b02c49b7f8118570eb9105cc9
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-16 10:12:01 -08:00
Marvin Hsu ce3c97c95b Tegra210B01: SE1 and SE2/PKA1 context save (atomic)
This patch adds the implementation of the SE atomic context save
sequence. The atomic context-save consistently saves to the TZRAM
carveout; thus there is no need to declare context save buffer or
map MMU region in TZRAM for context save. The atomic context-save
routine is responsible to validate the context-save progress
counter, where CTX_SAVE_CNT=133(SE1)/646(SE2), and the SE error
status to ensure the context save procedure complete successfully.

Change-Id: Ic80843902af70e76415530266cb158f668976c42
Signed-off-by: Marvin Hsu <marvinh@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-16 10:11:18 -08:00
Anthony Zhou 1d49112b2a Tegra: sip_calls: fix defects flagged by MISRA scan
Main fixes:

* Expressions resulting from the expansion of macro parameters
  shall be enclosed in parentheses [Rule 20.7]
* Added explicit casts (e.g. 0U) to integers in order for them
  to be compatible with whatever operation they're used in [Rule
  10.1]
* Fix implicit widening of composite assignment [Rule 10.6]

Change-Id: Ia83c3ab6e4c8c03c19c950978a7936ebfc290590
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-16 10:11:06 -08:00
Harvey Hsieh b495791ba2 Tegra: support to set the L2 ECC and Parity enable bit
This patch adds capability to read the boot flag to enable L2 ECC
and Parity Protection bit for the Cortex-A57 CPUs. The previous
bootloader sets this flag value for the platform.

* with some coverity fix:
MISRA C-2012 Directive 4.6
MISRA C-2012 Rule 2.5
MISRA C-2012 Rule 10.3
MISRA C-2012 Rule 10.4

Change-Id: Id7303bbbdc290b52919356c31625847b8904b073
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-16 10:10:52 -08:00
Harvey Hsieh 322e7c3e00 Tegra: console clock settings for real/FPGA platforms
This patch sets up the clock for the UART console, for real Silicon
and FPGA platforms. FPGA platforms run the UART clock source at
13MHz, whereas the clock cource runs at 408MHz for real silicon.

Change-Id: Ibfd99df032ec473f29e636e597cfc95a0f580598
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-16 10:08:53 -08:00
Marvin Hsu d3b71331eb Tegra: platform: helper functions to read chip ID
This patch adds helper functions to find out the chip ID of the
Tegra SoC.

Change-Id: Ia3901dc7cdf77d8c23884d1ed38a80dba6a8afde
Signed-off-by: Marvin Hsu <marvinh@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-16 10:08:32 -08:00
Anthony Zhou c62be07999 Tegra: platform: support simulation platforms and MISRA fixes
This patch adds support for simulation platforms as well as
fixes issues flagged by the MISRA scans.

Main MISRA fixes:

* Added explicit casts (e.g. 0U) to integers in order for them to be
  compatible with whatever operation they're used in [Rule 10.1]
* Fix return type doesn't match the function type [Rule 10.3]
* Use single return point instead of multiple [Rule 15.5]
* Change return type for the tegra_platform_is_x handlers to bool

Change-Id: I871b7c37b22942f6c0c2049c14cc626d4a24d81c
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-01-16 10:07:43 -08:00
Antonio Nino Diaz 09d40e0e08 Sanitise includes across codebase
Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}

The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).

For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.

Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.

Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2019-01-04 10:43:17 +00:00
Varun Wadekar 80c50eeaf9 Tegra: support for native GICv2 drivers
This patch converts Tegra platforms to support native
GICv2 drivers. This involves removes Tegra's GIC driver
port platforms to use interrupt_props

Change-Id: I83d8a690ff276dd97928dc60824a4fd36999bb30
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2018-12-18 14:25:27 -08:00
Antonio Nino Diaz c3cf06f1a3 Standardise header guards across codebase
All identifiers, regardless of use, that start with two underscores are
reserved. This means they can't be used in header guards.

The style that this project is now to use the full name of the file in
capital letters followed by 'H'. For example, for a file called
"uart_example.h", the header guard is UART_EXAMPLE_H.

The exceptions are files that are imported from other projects:

- CryptoCell driver
- dt-bindings folders
- zlib headers

Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-11-08 10:20:19 +00:00
Antonio Nino Diaz fdcc112797 tegra: Migrate to new interfaces
- Migrate to bl31_early_platform_setup2().
- Remove references to removed build options.
- Replace zeromem16() by zeromem().
- Use private definition of bl31_params_t.

This is an incomplete migration, the platform doesn't currently compile.

Change-Id: I67fbf2206678be80c3a16692024221a131cec42f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-09-28 15:34:17 +01:00
Antonio Nino Diaz 93c78ed231 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>
2018-08-22 10:26:05 +01:00
Andreas Färber 28db3e96ef tegra: Fix mmap_region_t struct mismatch
Commit fdb1964c34 ("xlat: Introduce
MAP_REGION2() macro") added a granularity field to mmap_region_t.

Tegra platforms were using the v2 xlat_tables implementation in
common/tegra_common.mk, but v1 xlat_tables.h headers in soc/*/plat_setup.c
where arrays are being defined. This caused the next physical address to
be read as granularity, causing EINVAL error and triggering an assert.

Consistently use xlat_tables_v2.h header to avoid this.

Fixes ARM-software/tf-issues#548.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2018-02-17 06:15:35 +01:00
Anthony Zhou ab712fd86b Tegra186: mce: fix MISRA defects
Main fixes:

* Added explicit casts (e.g. 0U) to integers in order for them to be
  compatible with whatever operation they're used in [Rule 10.1]
* Force operands of an operator to the same type category [Rule 10.4]
* Added curly braces ({}) around if/while statements in order to
  make them compound [Rule 15.6]
* Added parentheses [Rule 12.1]
* Voided non C-library functions whose return types are not used [Rule 17.7]

Change-Id: I91404edec2e2194b1ce2672d2a3fc6a1f5bf41f1
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-06-14 17:02:01 -07:00
Varun Wadekar 9a8f05e47d Tegra: gic: fix MISRA defects
Main fixes:

* Use int32_t replace int, use uint32_t replace unsign int [Rule 4.6]
* Added explicit casts (e.g. 0U) to integers in order for them to be
  compatible with whatever operation they're used in [Rule 10.1]
* Force operands of an operator to the same type category [Rule 10.4]
* Fixed assert/if statements conditions to be essentially boolean [Rule 14.4]
* Added curly braces ({}) around if statements in order to
  make them compound [Rule 15.6]
* Convert macros form headers to unsigned ints

Change-Id: I8051cc16499cece2039c9751bd347645f40f0901
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-06-14 17:01:39 -07:00
Anthony Zhou 31d97dc2d8 Tegra: pmc: fix defects flagged during MISRA analysis
Main fixes:

* Fixed if/while statement conditional to be essentially boolean [Rule 14.4]

* Added curly braces ({}) around if/for/while statements in order to
  make them compound [Rule 15.6]

* Added explicit casts (e.g. 0U) to integers in order for them to be
  compatible with whatever operation they're used in [Rule 10.1]

Change-Id: Ic72b248aeede6cf18bf85051188ea7b8fd8ae829
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2017-06-14 17:01:15 -07:00
Varun Wadekar f5f64e4dbc Tegra: memctrl: check GPU reset state from common place
This patch moves the GPU reset state check, during VideoMem resize, to the
common SiP handler, to reduce code duplication.

Change-Id: I3818c5f104b809da83dc2a61d6a8149606f81c13
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-06-14 17:01:04 -07:00
Varun Wadekar 70cb692e23 Tegra: add explicit casts for integer macros
This patch adds explicit casts (U(x)) to integers in the tegra_def.h
headers, to make them compatible with whatever operation they're used
in [MISRA-C Rule 10.1]

Change-Id: Ic5fc611aad986a2c6e6e6f625e0753ab9b69eb02
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-06-14 17:00:42 -07:00
Sandrine Bailleux 24c287be89 Tegra: Break circular dependency in platform header files
For SoCs T132 and T210, the header file 'platform_def.h' used to include
'tegra_def.h' and vice versa. This patch breaks this circular dependency
by making 'tegra_def.h' independent.

Change-Id: I45a00a84e6ab8b93d5e9242a9ff65f03e9102a96
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
2017-05-12 09:34:56 +01:00
dp-arm 82cb2c1ad9 Use SPDX license identifiers
To make software license auditing simpler, use SPDX[0] license
identifiers instead of duplicating the license text in every file.

NOTE: Files that have been imported by FreeBSD have not been modified.

[0]: https://spdx.org/

Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2017-05-03 09:39:28 +01:00
Varun Wadekar 9d42d23a2c Tegra: memctrl_v2: zero out NS Video memory carveout region
The video memory carveout has to be re-sized depending on the Video
content. This requires the NS world to send us new base/size values.
Before setting up the new region, we must zero out the previous memory
region, so that the video frames are not leaked to the outside world.

This patch adds the logic to zero out the previous memory carveout
region.

Change-Id: I471167ef7747154440df5c1a5e015fbeb69d9043
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-05-01 15:33:31 -07:00
Steven Kao e99eeec6ff Tegra: memmap Tegra micro-seconds timer controller
This patch adds the Tegra micro-seconds controller to the
memory map. This allows us to use the delay_timer functionality.

Change-Id: Ia8b148a871949bfede539974cacbe0e93ec7e77c
Signed-off-by: Steven Kao <skao@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-05-01 15:28:44 -07:00
davidcunado-arm 3d21c9452d Merge pull request #899 from vwadekar/tegra186-platform-support-v6
Tegra186 platform support v6
2017-04-16 16:20:38 +01:00
davidcunado-arm 5d385355f1 Merge pull request #897 from vwadekar/memctrl-v1-xlat-table-v2
Tegra: memctrl_v1: enable 'xlat_table_v2' library
2017-04-14 01:36:12 +01:00
Anthony Zhou 50e91633ee Tegra: fix trivial misra issues
Not having U or ULL as a suffix for these enums causes
a lot of unnecessary MISRA issues. This patch adds U or
ULL suffix to these common enums to reduce number of
MISRA issues.

Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-13 14:18:42 -07:00
Vignesh Radhakrishnan a9e0260c77 Tegra: Add support for fake system suspend
This patch adds support for fake system suspend (SC7).
This is a debug mode, to ensure that a different code path is
executed for cases like pre-silicon development, where a
full-fledged SC7 is not possible in early stages.

This particular patch ensures that, if fake system suspend is
enabled (denoted by tegra_fake_system_suspend variable
having a non-zero value), instead of calling WFI, a request
for a warm reset is made for starting the SC7 exit procedure.

This ensures that the code path of kernel->ATF and back to
kernel is executed without depending on other components
involved in SC7 code path.

Additionally, this patch also adds support for SMC call
from kernel, enabling fake system suspend mode.

Signed-off-by: Vignesh Radhakrishnan <vigneshr@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-13 14:18:42 -07:00
Varun Wadekar 0c2276e35f Tegra: memctrl_v1: disable AHB redirection after cold boot
During boot, USB3 and flash media (SDMMC/SATA) devices need access to
IRAM. Because these clients connect to the MC and do not have a direct
path to the IRAM, the MC implements AHB redirection during boot to allow
path to IRAM. In this mode, accesses to a programmed memory address aperture
are directed to the AHB bus, allowing access to the IRAM. The AHB aperture
is defined by the IRAM_BASE_LO and IRAM_BASE_HI registers, which are
initialized to disable this aperture. Once bootup is complete, we must
program IRAM base/top, thus disabling access to IRAM.

This patch provides functionality to disable this access. The tegra port
calls this new function before jumping to the non-secure world during
cold boot.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-13 14:16:25 -07:00
Varun Wadekar cd3de4326b Tegra: platform: support Tegra186 chip id
This patch adds support to read the chip id and identify if
the current platform is Tegra186.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-13 14:16:14 -07:00
Pritesh Raithatha c459206d21 Tegra: smmu: support for multiple devices
This patch adds flexibility to the code to initialise multiple SMMU
devices. The base address macro name has been changed to make it
explicit that we support multiple SMMUs.

Change-Id: Id4854fb010ebeb699512d79c769de24050c2ad69
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-13 12:35:14 -07:00
Pritesh Raithatha 986e333dc3 Tegra: smmu: platform handler for SMMU settings
This patch empowers the platforms to provide an array with the
registers that must be saved/restored across System Suspend.

Original-change-by: Pritesh Raithatha <praithatha@nvidia.com>

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-13 12:34:54 -07:00
Varun Wadekar c05a2197f3 Tegra: memctrl_v1: enable 'xlat_table_v2' library
This patch enables the 'xlat_table_v2' library for the Tegra Memory
Controller driver. This library allows us to dynamically map/unmap
memory regions, with MMU enabled.

The Memory Controller driver maps/unmaps non-overlapping Video Memory
region, to clean it of any secure contents, before it resizes the
region.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-10 16:21:57 -07:00
Pritesh Raithatha 06803cfd02 Tegra: memctrl_v2: platform handler for MC settings
This patch empowers the platforms to provide the settings (e.g. stream ID,
security setting, transaction overrides) required by the Memory Controller
driver. This allows the platforms to program the Memory Controller as per
their needs and makes the driver scalable.

Original-change-by: Pritesh Raithatha <praithatha@nvidia.com>

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-07 09:32:28 -07:00
Harvey Hsieh c4dae9fc69 Tegra: memctrl_v2: remove non-secure access to TZSRAM memory
This patch removes the memory controller configuration setting, which
allowed non-secure access to the TZSRAM memory.

Change-Id: Ic13645ba6a7694f192565962df40ca4fb8130f23
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-07 09:32:28 -07:00
Varun Wadekar 691bc22de9 Tegra186: read activity monitor's clock counter values
This patch adds a new SMC function ID to read the refclk and coreclk
clock counter values from the Activity Monitor. The non-secure world
requires this information to calculate the CPU's frequency.

Formula: "freq = (delta_coreclk / delta_refclk) * refclk_freq"

The following CPU registers have to be set by the non-secure driver
before issuing the SMC:

X1 = MPIDR of the target core
X2 = MIDR of the target core

Change-Id: I296d835def1f5788c17640c0c456b8f8f0e90824
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-07 09:15:51 -07:00
Varun Wadekar cb38550c94 Tegra186: move smmu driver to tegra/common
This patch moves the smmu driver introduced by the Tegra186 port
to tegra/common so that future chips can (re)use it.

Change-Id: Ia44c7f2a62fb2d8869db3a44742a8c6b13c49036
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-07 09:15:17 -07:00
Varun Wadekar 06060028e1 Tegra186: split MCE driver into public/private interfaces
This patch splits the MCE driver into public and private interfaces
to allow usage of common functionality across multiple SoCs.

Change-Id: Ib58080e730d72f11ff79507d8e0acffb2ad5c606
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-07 09:15:14 -07:00
Varun Wadekar 2dd7d41a2b Tegra186: move TSA macros to tegra_def.h
This patch moves the TSA block's macros from memctrl_v2.h to
tegra_def.h in the Tegra186 tree.

Change-Id: I8b45dd3905c5d1f33ffb36d8b2de72aeb06674aa
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-05 14:09:51 -07:00
Varun Wadekar 0258840e42 Tegra: drivers: memctrl: move chip specific defines to tegra_def.h
This patch moves the chip specific memory controller driver defines to
the appropriate tegra_def.h files, for future compatibility.

Change-Id: I3179fb771d8b32e913ca29bd94af95f4b2fc1961
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-05 14:09:51 -07:00
Varun Wadekar dec349c87d Tegra186: move platform specific MCE defines to tegra_def.h
This patch moves the MCE's configurable parameters to tegra_def.h for
the Tegra186 SoC, to allow forward compatiblity.

Change-Id: If8660c1c09908a4064dbb67d5ca4fb78389cab13
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-05 14:09:51 -07:00
Harvey Hsieh 719f3ec242 Tegra: memctrl_v2: save TZDRAM settings to secure scratch registers
Save TZDRAM settings for SC7 resume firmware to restore.

SECURITY_BOM:     MC_SECURITY_CFG0_0 = SECURE_RSV55_SCRATCH_0
SECURITY_BOM_HI:  MC_SECURITY_CFG3_0 = SECURE_RSV55_SCRATCH_1
SECURITY_SIZE_MB: MC_SECURITY_CFG1_0 = SECURE_RSV54_SCRATCH_1

Change-Id: I78e891d9ebf576ff2a17ff87cf3aff4030ee11b8
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-04-05 13:56:29 -07:00
Varun Wadekar 2b04f92787 Tegra186: use helper functions to get major/minor version
This patch uses helper functions to read the chips's major and minor
version values.

Change-Id: I5b2530a31af5ab3778a8aa63380def4e9f9ee6ec
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-30 16:49:05 -07:00
Varun Wadekar 698f425028 Tegra: smmu: disable TCU prefetch for all the 64 contexts
This patch disables TCU prefetch for all the contexts in order
to improve SMMU performance.

Change-Id: I82ca49a0e396d9f064f5c62a5f00c4b2101d8459
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-30 16:49:05 -07:00
Varun Wadekar 48afb167b3 Tegra186: handlers to get BL31 arguments from previous bootloader
This patch overrides the default handlers to get BL31 arguments from the
previous bootloader. The previous bootloader stores the pointer to the
arguments in PMC secure scratch register #53.

BL31 is the first component running on the CPU, as there isn't a previous
bootloader. We set the RESET_TO_BL31 flag to enable the path which assumes
that there are no input parameters passed by the previous bootloader.

Change-Id: Idacc1df292a70c9c1cb4d5c3a774bd796175d5e8
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-30 16:49:05 -07:00
Varun Wadekar 2f583f8e6d Tegra: memctrl_v2: TZRAM aperture configuration settings
This patch enables the configuration settings for the TZRAM
aperture by programming the base/size of the aperture and
restricting access to it. We allow only the CPU to read/write
by programming the access configuration registers to 0.

Change-Id: Ie16ad29f4c5ec7aafa972b0a0230b4790ad5619e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-30 16:49:05 -07:00
Varun Wadekar 1eed3838b3 Tegra186: Enable ECC and Parity Protection for A02p SKUs
This patch enables ECC and Parity Protection for Cortex-A57 CPUs during boot,
for Tegra186 A02p SKUs.

Change-Id: I8522a6cb61f5e4fa9e0471f558a0c3ee8078370e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-30 16:49:05 -07:00
Varun Wadekar 2079ddd62c Tegra186: fix recursion in included headers (tegra_def.h/platform_def.h)
This patch fixes the "Recursion in included headers" error flagged by
Coverity.

Fixes coverity errors "31858: Recursion in included headers" and
"31857: Recursion in included headers"

Change-Id: Icf8838434b1808b396e743e47f59adc452546364
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-27 10:17:43 -07:00
Varun Wadekar abd3a91d6f Tegra186: enable support for simulation environment
The Tegra simulation environment has limited capabilities. This patch
checks the chip's major and minor versions to decide the features to
enable/disable - MCE firmware version checking is disabled and limited
Memory Controller settings are enabled

Change-Id: I258a807cc3b83cdff14a9975b4ab4f9d1a9d7dcf
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-23 14:20:15 -07:00
Varun Wadekar 68c7de6fa9 Tegra186: save/restore BL31 context to/from TZDRAM
This patch adds support to save the BL31 state to the TZDRAM
before entering system suspend. The TZRAM loses state during
system suspend and so we need to copy the entire BL31 code to
TZDRAM before entering the state.

In order to restore the state on exiting system suspend, a new
CPU reset handler is implemented which gets copied to TZDRAM
during boot. TO keep things simple we use this same reset handler
for booting secondary CPUs too.

Change-Id: I770f799c255d22279b5cdb9b4d587d3a4c54fad7
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-23 14:17:32 -07:00
Varun Wadekar e64ce3abb3 Tegra186: re-configure MSS' client settings
This patch reprograms MSS to make ROC deal with ordering of
MC traffic after boot and system suspend exit. This is needed
as device boots with MSS having all control but POR wants ROC
to deal with the ordering. Performance is expected to improve
with ROC but since no one has really tested the performance,
keep the option configurable for now by introducing a platform
level makefile variable.

Change-Id: I2e782fea138ccf9d281eb043a6b2c3bb97c839a7
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-23 11:22:58 -07:00
Varun Wadekar 50402b17b8 Tegra186: implement support for System Suspend
This patch adds the chip level support for System Suspend entry
and exit. As part of the entry sequence we first query the MCE
firmware to check if it is safe to enter system suspend. Once
we get a green light, we save hardware block settings and enter
the power state. As expected, all the hardware settings are
restored once we exit the power state.

Change-Id: I6d192d7568d6a555eb10efdfd45f6d79c20f74ea
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-22 11:38:16 -07:00
Varun Wadekar ea96ac175e Tegra186: memctrl_v2: restore video memory settings
The memory controller loses its settings when the device enters system
suspend state.

This patch adds a handler to restore the Video Memory settings in the
memory controller, which would be called after exiting the system suspend
state.

Change-Id: I1ac12426d7290ac1452983d3c9e05fabbf3327fa
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-22 11:38:16 -07:00
Varun Wadekar 4122151f6d Tegra186: smmu: driver for the smmu hardware block
This patch adds a device driver for the SMMU hardware block on
Tegra186 SoCs. We use the generic ARM SMMU-500 IP block on
Tegra186. The driver only supports saving the SMMU settings
before entering system suspend. The MC driver and the NS world
clients take care of programming their own settings.

Change-Id: Iab5a90310ee10f6bc8745451ce50952ab3de7188
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-22 11:38:16 -07:00
Varun Wadekar 50cd8646c5 Tegra186: register FIQ interrupt sources
This patch registers all the FIQ interrupt sources during platform
setup. Currently we support AON and TOP watchdog timer interrupts.

Change-Id: Ibccd866f00d6b08b574f765538525f95b49c5549
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-20 09:15:16 -07:00
Varun Wadekar be87d920bf Tegra: memctrl_v2: implement MC txn override WAR
This patch sets the Memory Controller's TXN_OVERRIDE registers
for most write clients to CGID_ADR. This ensures ordering is maintained.
In some cases WAW ordering problems could occur. There are different
settings for Tegra version A01 v A02.

Original changes by Alex Waterman <alexw@nvidia.com>

Change-Id: I82ea02afa43a24250ed56985757b83e78e71178c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-20 09:14:51 -07:00
Varun Wadekar 7afd463753 Tegra186: support for C6/C7 CPU_SUSPEND states
This patch adds support for the C6 and C7 CPU_SUSPEND states. C6 is
an idle state while C7 is a powerdown state.

The MCE block takes care of the entry/exit to/from these core power
states and hence we call the corresponding MCE handler to process
these requests. The NS driver passes the tentative time that the
core is expected to stay in this state as part of the power_state
parameter, which we store in a per-cpu array and pass it to the
MCE block.

Change-Id: I152acb11ab93d91fb866da2129b1795843dfa39b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-20 09:13:52 -07:00
Varun Wadekar d48c0c45de Tegra: memctrl_v2: secure the on-chip TZSRAM memory
This patch programs the Memory controller's control registers
to disable non-secure accesses to the TZRAM. In case these
registers are already programmed by the BL2/BL30, then the
driver just bails out.

Change-Id: Ia1416988050e3d067296373060c717a260499122
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-20 09:13:39 -07:00
Varun Wadekar b67a7c7c47 Tegra186: support for the latest platform port handlers
This patch adds support for the newer platform handler functions. Commit
I6db74b020b141048b6b8c03e1bef7ed8f72fd75b merges the upstream code which
has already moved all the upstream supported platforms over to these
handler functions.

Change-Id: I621eff038f3c0dc1b90793edcd4dd7c71b196045
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-20 09:13:25 -07:00
Varun Wadekar 3cf3183fc2 Tegra186: platform support for Tegra "T186" SoC
Tegra186 is the newest SoC in the Tegra family which consists
of two CPU clusters - Denver and A57. The Denver cluster hosts
two next gen Denver15 CPUs while the A57 cluster hosts four ARM
Cortex-A57 CPUs. Unlike previous Tegra generations, all the six
cores on this SoC would be available to the system at the same
time and individual clusters can be powered down to conserve
power.

Change-Id: Id0c9919dbf5186d2938603e0b11e821b5892985e
Signed-off-by: Wayne Lin <wlin@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-20 08:58:58 -07:00
Varun Wadekar 412dd5c503 Tegra: memctrl_v2: Memory Controller Driver (v2)
This patch adds driver for the Memory Controller (v2) in the newer
Tegra SoCs. The newer hardware uses ARM's SMMU hardware instead of
the proprietary block in the past.

Change-Id: I78359da780dc840213b6e99954e45e34428d4fff
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-20 08:55:20 -07:00
Varun Wadekar ea6dec5db6 Tegra: public interfaces to get the chip's major/minor versions
This patch opens up the interfaces to read the chip's major/minor versions
for all Tegra drivers to use.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-20 08:54:16 -07:00
Steven Kao b5903dfcaf Tegra: increase ADDR_SPACE_SIZE to 35 bits
This patch increases the ADDR_SPACE_SIZE macro (virtual address)
to 35 bits, to support max memory of 32G, for all Tegra platforms.

Change-Id: I8e6861601d3a667d7428988c7596b0adebfa0548
Signed-off-by: Steven kao <skao@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-02 13:02:27 -08:00
Varun Wadekar 23cd470f86 Tegra: fix logic to calculate GICD_ISPENDR register address
This patch uses GICD_BASE to calculate the GICD_ISPENDR regsiter address
in the platform's 'plat_crash_print_regs' routine.

Reported by: Seth Eatinger <seatinger@nvidia.com>

Change-Id: Ic7be29abc781f475ad25b59582ae60a0a2497377
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-02 13:01:25 -08:00
Varun Wadekar e954ab8f76 Tegra: support for silicon/simulation platforms
This patch adds support to identify the underlying platform
on which we are running. The currently supported platforms
are actual silicon and simulation platforms.

Change-Id: Iadf96e79ec663b3dbd1a18e9bb95ffcdb82fc8af
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-03-02 13:01:01 -08:00
Varun Wadekar 8ab06d2f1e Tegra: get BL31 arguments from previous bootloader
This patch implements handlers which platforms can override to
get the BL31 arguments passed by the previous bootloader.

Change-Id: I6b9628a984644ce1b5de5aa6d7cd890e57241d89
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-28 08:50:01 -08:00
Varun Wadekar 45eab456e6 Tegra: GIC: differentiate between FIQs targeted towards EL3/S-EL1
This patch modifies the secure IRQ registration process to allow platforms
to specify the target CPUs as well as the owner of the IRQ. IRQs "owned"
by the EL3 would return INTR_TYPE_EL3 whereas those owned by the Trusted
OS would return INTR_TYPE_S_EL1 as a result.

Change-Id: I528f7c8220d0ae0c0f354e78d69e188abb666ef6
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-28 08:50:01 -08:00
Varun Wadekar 78e2bd10ae Tegra: implement FIQ interrupt handler
This patch adds a handler for FIQ interrupts triggered when
the CPU is in the NS world. The handler stores the NS world's
context along with ELR_EL3/SPSR_EL3.

The NS world driver issues an SMC initially to register it's
handler. The monitor firmware stores this handler address and
jumps to it when the FIQ interrupt fires. Upon entry into the
NS world the driver then issues another SMC to get the CPU
context when the FIQ fired. This allows the NS world driver to
determine the CPU state and call stack when the interrupt
fired. Generally, systems register watchdog interrupts as FIQs
which are then used to get the CPU state during hangs/crashes.

Change-Id: I733af61a08d1318c75acedbe9569a758744edd0c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-28 08:50:01 -08:00
Varun Wadekar d336030169 Tegra: GIC: enable FIQ interrupt handling
Tegra chips support multiple FIQ interrupt sources. These interrupts
are enabled in the GICD/GICC interfaces by the tegra_gic driver. A
new FIQ handler would be added in a subsequent change which can be
registered by the platform code.

This patch adds the GIC programming as part of the tegra_gic_setup()
which now takes an array of all the FIQ interrupts to be enabled for
the platform. The Tegra132 and Tegra210 platforms right now do not
register for any FIQ interrupts themselves, but will definitely use
this support in the future.

Change-Id: I0ea164be901cd6681167028fea0567399f18d4b8
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-28 08:50:01 -08:00
Varun Wadekar 5ea0b028d4 Tegra: handler for per-soc early setup
This patch adds a weak handler for early platform setup which
can be overriden by the soc-specific handlers to perform any
early setup tasks.

Change-Id: I1a7a98d59b2332a3030c6dca5a9b7be977177326
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-28 08:50:01 -08:00
Varun Wadekar 49622c8d49 Tegra: increase BL31 image size to 256KB
This patch increases the BL31 image size for all Tegra platforms to
256KB, so that we can relocate BL31 to TZSRAM on supported chips.

Change-Id: I467063c68632b53b5d4ef8ff1f76f5988096bd9c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-23 11:52:10 -08:00
Varun Wadekar 102e408793 Tegra: allow individual SoCs to restore their settings
This patch uses the Memory controller driver's handler to restore
its settings and moves the other chip specific code to their own
'pwr_domain_on_finish' handlers.

Change-Id: I3c9d23bdab9e2e3c05034ff6812cf941ccd7a75e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-23 11:52:10 -08:00
Varun Wadekar 9f9bafa346 Tegra: define platform power states
The platform power states, PLAT_MAX_RET_STATE and PLAT_MAX_OFF_STATE,
can change on Tegra SoCs and so should be defined per-soc.

This patch moves these macro definitions to individual SoC's tegra_def.h
files.

Change-Id: Ib9b2752bc4d79cef6f79bee49882d340f71977a2
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-23 10:49:45 -08:00
Varun Wadekar 06b19d58ce Tegra: drivers: memctrl: introduce function to secure on-chip TZRAM
This patch introduces a function to secure the on-chip TZRAM memory. The
Tegra132 and Tegra210 chips do not have a compelling use case to lock the
TZRAM. The trusted OS owns the TZRAM aperture on these chips and so it
can take care of locking the aperture. This might not be true for future
chips and this patch makes the TZRAM programming flexible.

Change-Id: I3ac9f1de1b792ccd23d4ded274784bbab2ea224a
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-23 10:49:22 -08:00
Varun Wadekar e10842167b Tegra: init normal/crash console for platforms
The BL2 fills in the UART controller ID to be used as the normal as
well as the crash console on Tegra platforms. The controller ID to
UART controller base address mapping is handled by each Tegra SoC
the base addresses might change across Tegra chips.

This patch adds the handler to parse the platform params to get the
UART ID for the per-soc handlers.

Change-Id: I4d167b20a59aaf52a31e2a8edf94d8d6f89598fa
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-22 09:16:34 -08:00
Varun Wadekar e0d4158c71 Tegra: add tzdram_base to plat_params_from_bl2 struct
This patch adds another member, tzdram_base, to the plat_params_from_bl2 struct
in order to store the TZDRAM carveout base address used to load the Trusted OS.
The monitor programs the memory controller with the TZDRAM base and size in order
to deny any accesses from the NS world.

Change-Id: If39b8674d548175d7ccb6525c18d196ae8a8506c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-22 09:16:34 -08:00
Varun Wadekar 21f1fd95db Tegra: Memory Controller Driver (v1)
This patch renames the current Memory Controller driver files to
"_v1". This is done to add a driver for the new Memory Controller
hardware (v2).

Change-Id: I668dbba42f6ee0db2f59a7103f0ae7e1d4684ecf
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-22 09:16:34 -08:00
Varun Wadekar 0cd6138ddc Tegra: enable processor retention and L2/CPUECTLR access
This patch enables the processor retention and L2/CPUECTLR read/write
access from the NS world only for Cortex-A57 CPUs on the Tegra SoCs.

Change-Id: I9941a67686ea149cb95d80716fa1d03645325445
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-21 18:55:58 -08:00
Varun Wadekar 0c2a7c38f3 Tegra: define MAX_XLAT_TABLES and MAX_MMAP_REGIONS per-platform
This patch moves these address translation helper macros to individual
Tegra SoC makefiles to provide more control.

Change-Id: Ieab53c457c73747bd0deb250459befb5b7b9363f
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2017-02-21 18:55:58 -08:00
Masahiro Yamada 3d8256b2a1 Use #ifdef for IMAGE_BL* instead of #if
One nasty part of ATF is some of boolean macros are always defined
as 1 or 0, and the rest of them are only defined under certain
conditions.

For the former group, "#if FOO" or "#if !FOO" must be used because
"#ifdef FOO" is always true.  (Options passed by $(call add_define,)
are the cases.)

For the latter, "#ifdef FOO" or "#ifndef FOO" should be used because
checking the value of an undefined macro is strange.

Here, IMAGE_BL* is handled by make_helpers/build_macro.mk like
follows:

  $(eval IMAGE := IMAGE_BL$(call uppercase,$(3)))

  $(OBJ): $(2)
          @echo "  CC      $$<"
          $$(Q)$$(CC) $$(TF_CFLAGS) $$(CFLAGS) -D$(IMAGE) -c $$< -o $$@

This means, IMAGE_BL* is defined when building the corresponding
image, but *undefined* for the other images.

So, IMAGE_BL* belongs to the latter group where we should use #ifdef
or #ifndef.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-01-24 01:01:21 +09:00
Antonio Nino Diaz f3d3b316f8 Implement plat_get_syscnt_freq2 on platforms
Replaced plat_get_syscnt_freq by plat_get_syscnt_freq2 on all
upstream platforms.

Change-Id: I3248f3f65a16dc5e9720012a05c35b9e3ba6abbe
2016-05-20 15:29:30 +01:00
Yatharth Kochar c073fda1c6 Move `plat_get_syscnt_freq()` to arm_common.c
This patch moves the definition for `plat_get_syscnt_freq()`
from arm_bl31_setup.c to arm_common.c. This could be useful
in case a delay timer needs to be installed based on the
generic timer in other BLs.
This patch also modifies the return type for this function
from `uint64_t` to `unsigned long long` within ARM and other
platform files.

Change-Id: Iccdfa811948e660d4fdcaae60ad1d700e4eda80d
2016-04-21 17:10:58 +01:00
Gerald Lejeune 9ff67fa6f2 Dump platform-defined regs in crash reporting
It is up to the platform to implement the new plat_crash_print_regs macro to
report all relevant platform registers helpful for troubleshooting.

plat_crash_print_regs merges or calls previously defined plat_print_gic_regs
and plat_print_interconnect_regs macros for each existing platforms.

NOTE: THIS COMMIT REQUIRES ALL PLATFORMS THAT ENABLE THE `CRASH_REPORTING`
BUILD FLAG TO MIGRATE TO USE THE NEW `plat_crash_print_regs()` MACRO. BY
DEFAULT, `CRASH_REPORTING` IS ENABLED IN DEBUG BUILDS FOR ALL PLATFORMS.

Fixes: arm-software/tf-issues#373

Signed-off-by: Gerald Lejeune <gerald.lejeune@st.com>
2016-04-14 17:50:22 +02:00
Soby Mathew d30ac1c36f Use tf_printf() for debug logs from xlat_tables.c
The debug prints used to debug translation table setup in xlat_tables.c
used the `printf()` standard library function instead of the stack
optimized `tf_printf()` API. DEBUG_XLAT_TABLE option was used to enable
debug logs within xlat_tables.c and it configured a much larger stack
size for the platform in case it was enabled. This patch modifies these
debug prints within xlat_tables.c to use tf_printf() and modifies the format
specifiers to be compatible with tf_printf(). The debug prints are now enabled
if the VERBOSE prints are enabled in Trusted Firmware via LOG_LEVEL build
option.

The much larger stack size definition when DEBUG_XLAT_TABLE is defined
is no longer required and the platform ports are modified to remove this
stack size definition.

Change-Id: I2f7d77ea12a04b827fa15e2adc3125b1175e4c23
2016-02-01 10:10:09 +00:00
Yatharth Kochar ca8b7d51c8 Include psci.h from tegra platform header
The `plat/nvidia/tegra/include/tegra_private.h` file uses resources
from psci.h (for example, psci_power_state_t) but does not explicitly
include psci.h. This does not currently cause a problem since psci.h
is indirectly included via other headers. However, this may not be
the case in future.

This patch explicitly includes psci.h from tegra_private.h

Change-Id: Ia991147898dbd117c1d3496a95850995a5554c05
2015-12-09 15:16:10 +00:00
Varun Wadekar 71cb26ea5b Tegra: remove support for legacy platform APIs
This patch modifies the Tegra port to support the new platform
APIs so that we can disable the compat layer. This includes
modifications to the power management and platform topology code.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-12-04 15:41:20 -08:00
Varun Wadekar 864ab0fd21 Tegra: flowctrl: rename tegra_fc_cpu_idle() to tegra_fc_cpu_powerdn()
This patch renames the tegra_fc_cpu_idle() function to a more appropriate
tegra_fc_cpu_powerdn() to better reflect its usage.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-11-24 17:14:30 -08:00
Varun Wadekar 43ec35ee75 Tegra: fix PLATFORM_{CORE_COUNT|NUM_AFFS} macros
This patch fixes the following macros for Tegra SoCs.

* PLATFORM_CORE_COUNT: PLATFORM_CLUSTER_COUNT * PLATFORM_MAX_CPUS_PER_CLUSTER
* PLATFORM_NUM_AFFS: PLATFORM_CORE_COUNT + PLATFORM_CLUSTER_COUNT + 1

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-08-12 09:24:50 +05:30
Varun Wadekar 0bf1b022f2 Tegra: retrieve BL32's bootargs from bl32_ep_info
This patch removes the bootargs pointer from the platform params
structure. Instead the bootargs are passed by the BL2 in the
bl32_ep_info struct which is a part of the EL3 params struct.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-07-31 10:26:22 +05:30
Varun Wadekar 42ca2d86c8 Tegra210: enable WRAP to INCR burst type conversions
The Memory Select Switch Controller routes any CPU transactions to
the appropriate slave depending on the transaction address. During
system suspend, it loses all config settings and hence the CPU has
to restore them during resume.

This patch restores the controller's settings for enabling WRAP to
INCR burst type conversions on the master ports, for any incoming
requests from the AXI slave ports.

Tested by performing multiple system suspend cycles.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-07-27 17:34:41 +05:30
Varun Wadekar e7d4caa298 Tegra: Support for Tegra's T132 platforms
This patch implements support for T132 (Denver CPU) based Tegra
platforms.

The following features have been added:

* SiP calls to switch T132 CPU's AARCH mode
* Complete PSCI support, including 'System Suspend'
* Platform specific MMIO settings
* Locking of CPU vector registers

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-07-24 09:25:23 +05:30
Varun Wadekar 93eafbcad4 Tegra: implement per-SoC validate_power_state() handler
The validate_power_state() handler checks the power_state for a valid afflvl
and state id. Although the afflvl check is common, the state ids are implementation
defined.

This patch moves the handler to the tegra/soc folder to allow each SoC to validate
the power_state for supported parameters.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-07-24 09:08:27 +05:30
Varun Wadekar c896132679 Tegra: introduce delay timer support
This patch introduces the backend required for implementing the delay
timer API. Tegra has an on-chip free flowing us timer which can be
used as the delay timer.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-07-17 19:06:36 +05:30
Varun Wadekar 94c672e77f Implement get_sys_suspend_power_state() handler for Tegra
This patch implements the get_sys_suspend_power_state() handler required by
the PSCI SYSTEM_SUSPEND API. The intent of this handler is to return the
appropriate State-ID field which can be utilized in `affinst_suspend()` to
suspend to system affinity level.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-07-06 09:15:02 +05:30
danh-arm 09aa0392b3 Merge pull request #319 from vwadekar/tegra-video-mem-aperture-v3
Reserve a Video Memory aperture in DRAM memory
2015-06-18 14:58:33 +01:00
Varun Wadekar 9a9645105b Reserve a Video Memory aperture in DRAM memory
This patch adds support to reserve a memory carveout region in the
DRAM on Tegra SoCs. The memory controller provides specific registers
to specify the aperture's base and size. This aperture can also be
changed dynamically in order to re-size the memory available for
DRM video playback. In case of the new aperture not overlapping
the previous one, the previous aperture has to be cleared before
setting up the new one. This means we do not "leak" any video data
to the NS world.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-06-12 17:40:31 +05:30
Varun Wadekar dc7fdad251 Boot Trusted OS' on Tegra SoCs
This patch adds support to run a Trusted OS during boot time. The
previous stage bootloader passes the entry point information in
the 'bl32_ep_info' structure, which is passed over to the SPD.

The build system expects the dispatcher to be passed as an input
parameter using the 'SPD=<dispatcher>' option. The Tegra docs have
also been updated with this information.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-06-11 14:46:32 +05:30
Varun Wadekar 08438e24e1 Support for NVIDIA's Tegra T210 SoCs
T210 is the latest chip in the Tegra family of SoCs from NVIDIA. It is an
ARM v8 dual-cluster (A57/A53) SoC, with any one of the clusters being active
at a given point in time.

This patch adds support to boot the Trusted Firmware on T210 SoCs. The patch
also adds support to boot secondary CPUs, enter/exit core power states for
all CPUs in the slow/fast clusters. The support to switch between clusters
is still not available in this patch and would be available later.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2015-05-29 16:43:25 +05:30