Commit Graph

224 Commits

Author SHA1 Message Date
David Pu fba5cdc695 Tegra194: ras: verbose prints for SErrors
This patch provides verbose prints for RAS SErrors handled by the
firmware, for improved debugging.

Change-Id: Iaad8d183054d884f606dc4621da2cc6b2375bcf9
Signed-off-by: David Pu <dpu@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-06-12 10:23:23 -07:00
Varun Wadekar 0d8511953e Tegra194: SiP: clear RAS corrected error records
This patch introduces a function ID to clear all the RAS error
records for corrected errors.

Per latest requirement, ARM RAS corrected errors will be reported to
lower ELs via interrupts and cleared via SMC. This patch provides
required function to clear RAS error status.

This patch also sets up all required RAS Corrected errors in order to
route RAS corrected errors to lower ELs.

Change-Id: I554ba1d0797b736835aa27824782703682c91e51
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: David Pu <dpu@nvidia.com>
2020-06-12 09:46:15 -07:00
David Pu 8ca61538a0 Tegra194: add RAS exception handling
This patch adds all Tegra194 RAS nodes definitions and support to
handle all uncorrectable RAS errors.

Change-Id: I109b5a8dbca91d92752dc282c4ca30f273c475f9
Signed-off-by: David Pu <dpu@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-06-12 09:43:54 -07:00
Varun Wadekar d886628de6 Tegra: enable SDEI handling
This patch enables SDEI support for all Tegra platforms, with
the following configuration settings.

* SGI 8 as the source IRQ
* Special Private Event 0
* Three private, dynamic events
* Three shared, dynamic events
* Twelve general purpose explicit events

Verified using TFTF SDEI test suite.

******************************* Summary *******************************
 Test suite 'SDEI'                                               Passed
 =================================
 Tests Skipped : 0
 Tests Passed  : 5
 Tests Failed  : 0
 Tests Crashed : 0
 Total tests   : 5
 =================================

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I1922069931a7876a4594e53260ee09f2e4f09390
2020-05-20 12:00:26 -07:00
Varun Wadekar b5b2923d9d Tegra: introduce support for SMCCC_ARCH_SOC_ID
This patch returns the SOC version and revision values from
the 'plat_get_soc_version' and 'plat_get_soc_revision' handlers.

Verified using TFTF SMCCC_ARCH_SOC_ID test.

<snip>
> Executing 'SMCCC_ARCH_SOC_ID test'
  TEST COMPLETE                                                 Passed
SOC Rev = 0x102
SOC Ver = 0x36b0019
<snip>

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: Ibd7101619143b74f6f6660732daeac1a8bca3e44
2020-05-12 22:43:03 +00:00
Varun Wadekar adb20a1755 Tegra: enable EHF for watchdog timer interrupts
This patch enables the Exception Handling Framework to service the WDT
interrupts on all Tegra platforms.

Verified that the watchdog timer interrupt fires after migrating to
the EHF.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I6b2e33da7841aa064e3a8f825c26fadf168cd0d5
2020-04-01 14:53:24 -07:00
Anthony Zhou 9aaa8882eb Tegra194: move cluster and CPU counter to header file.
MISRA rules request that the cluster and CPU counter be unsigned
values and have a suffix 'U'. If the define located in the makefile,
this cannot be done.

This patch moves the PLATFORM_CLUSTER_COUNT and PLATFORM_MAX_CPUS_PER_CLUSTER
macros to tegra_def.h as a result.

Change-Id: I9ef0beb29485729de204b4ffbb5241b039690e5a
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
2020-03-21 19:00:05 -07:00
Varun Wadekar 713769515f Tegra: memctrl_v2: remove support to secure TZSRAM
This patch removes support to secure the on-chip TZSRAM memory for
Tegra186 and Tegra194 platforms as the previous bootloader does that
for them.

Change-Id: I50c7b7f9694285fe31135ada09baed1cfedaaf07
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-21 19:00:05 -07:00
Varun Wadekar 42080d4892 Tegra: remove circular dependency with common_def.h
This patch stops including common_def.h from platform_def.h to
fix a circular depoendency between them.

This means platform_def.h now has to define the linker macros:
* PLATFORM_LINKER_FORMAT
* PLATFORM_LINKER_ARCH

Change-Id: Icd540b1bd32fb37e0e455e9146c8b7f4b314e012
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-21 19:00:05 -07:00
Varun Wadekar a5bfcad851 Tegra: include missing stdbool.h
This patch includes the missing stdbool.h header from flowctrl.h
and bpmp_ivc.c files.

Change-Id: If60d19142b1cb8ae663fbdbdf1ffe45cbbdbc1b2
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-21 19:00:05 -07:00
Kalyani Chidambaram 2bf1085d58 Tegra: remove support for SEPARATE_CODE_AND_RODATA=0
Tegra platforms will not be supporting SEPARATE_CODE_AND_RODATA=0.

This patch uses the common macros provided by bl_common.h as a result
and adds a check to assert if SEPARATE_CODE_AND_RODATA set is not set
to '1'.

Change-Id: I376ea60c00ad69cb855d89418bdb80623f14800e
Signed-off-by: Kalyani Chidambaram <kalyanic@nvidia.com>
2020-03-21 19:00:05 -07:00
Varun Wadekar 2139c9c8bf Tegra186: system resume from TZSRAM memory
TZSRAM loses power during System suspend, so the entire contents
are copied to TZDRAM before Sysem Suspend entry. The warmboot code
verifies and restores the contents to TZSRAM during System Resume.

This patch removes the code that sets up CPU vector to point to
TZSRAM during System Resume as a result. The trampoline code can
also be completely removed as a result.

Change-Id: I2830eb1db16efef3dfd96c4e3afc41a307588ca1
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-18 17:47:27 -07:00
Varun Wadekar 8336c94dc4 Tegra186: disable PROGRAMMABLE_RESET_ADDRESS
This patch disables the code to program reset vector for secondary
CPUs to a different entry point, than cold boot. The cold boot entry
point has the ability to differentiate between a cold boot and a warm
boot, that is controlled by the PROGRAMMABLE_RESET_ADDRESS macro. By
reusing the same entry point, we can lock the CPU reset vector during
cold boot.

Change-Id: Iad400841d57c139469e1d29b5d467197e11958c4
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-18 17:47:22 -07:00
Kalyani Chidambaram d55b8f6a89 Tegra194: enable dual execution for EL2 and EL3
This patch enables dual execution optimized translations for EL2 and EL3
CPU exception levels.

Change-Id: I28fe98bb05687400f247e94adf44a1f3a85c38b1
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-18 17:47:03 -07:00
Varun Wadekar f8827c60c7 Tegra210: support for secure physical timer
This patch enables on-chip timer1 interrupts for Tegra210 platforms.

Change-Id: Ic7417dc0e69264d7c28aa012fe2322cd30838f3e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-11 13:40:07 -07:00
Varun Wadekar 91dd7edd31 Tegra: smmu: export handlers to read/write SMMU registers
This patch exports the SMMU register read/write handlers for platforms.

Change-Id: If92f0d3ce820e4997c090b48be7614407bb582da
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-11 13:37:26 -07:00
Pritesh Raithatha a391d4942a Tegra: smmu: remove context save sequence
SMMU and MC registers are saved as part of the System Suspend sequence.
The register list includes some NS world SMMU registers that need to be
saved by NS world software instead. All that remains as a result are
the MC registers.

This patch moves code to MC file as a result and renames all the
variables and defines to use the MC prefix instead of SMMU. The
Tegra186 and Tegra194 platform ports are updated to provide the MC
context register list to the parent driver. The memory required for
context save is reduced due to removal of the SMMU registers.

Change-Id: I83a05079039f52f9ce91c938ada6cd6dfd9c843f
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
2020-03-11 13:37:26 -07:00
Varun Wadekar e904448006 Tegra: bpmp: fixup TEGRA_CLK_SE values for Tegra186/Tegra194
This patch fixes the SE clock ID being used for Tegra186 and Tegra194
SoCs. Previous assumption, that both SoCs use the same clock ID, was
incorrect.

Change-Id: I1ef0da5547ff2e14151b53968cad9cc78fee63bd
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-03-11 13:37:26 -07:00
Jeetesh Burman 029dd14e72 Tegra194: add SE support to generate SHA256 of TZRAM
The BL3-1 firmware code is stored in TZSRAM on Tegra194 platforms. This
memory loses power when we enter System Suspend and so its contents are
stored to TZDRAM, before entry. This opens up an attack vector where the
TZDRAM contents might be tampered with when we are in the System Suspend
mode. To mitigate this attack the SE engine calculates the hash of entire
TZSRAM and stores it in PMC scratch, before we copy data to TZDRAM. The
WB0 code will validate the TZDRAM and match the hash with the one in PMC
scratch.

This patch adds driver for the SE engine, with APIs to calculate the hash
and store to PMC scratch registers.

Change-Id: I04cc0eb7f54c69d64b6c34fc2ff62e4cfbdd43b2
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>
2020-03-11 13:37:25 -07:00
Jeetesh Burman 2ac7b22387 Tegra194: store TZDRAM base/size to scratch registers
This patch saves the TZDRAM base and size values to secure scratch
registers, for the WB0. The WB0 reads these values and uses them to
verify integrity of the TZDRAM aperture.

Change-Id: I2f5fd11c87804d20e2698de33be977991c9f6f33
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>
2020-03-11 13:31:12 -07:00
Jeetesh Burman 4eed9c8480 Tegra186: add SE support to generate SHA256 of TZRAM
The BL3-1 firmware code is stored in TZSRAM on Tegra186 platforms. This
memory loses power when we enter System Suspend and so its contents are
stored to TZDRAM, before entry. This opens up an attack vector where the
TZDRAM contents might be tampered with when we are in the System Suspend
mode. To mitigate this attack the SE engine calculates the hash of entire
TZSRAM and stores it in PMC scratch, before we copy data to TZDRAM. The
WB0 code will validate the TZDRAM and match the hash with the one in PMC
scratch.

This patch adds driver for the SE engine, with APIs to calculate the hash
and store SE SHA256 hash-result to PMC scratch registers.

Change-Id: Ib487d5629225d3d99bd35d44f0402d6d3cf27ddf
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>
2020-03-09 15:25:16 -07:00
Jeetesh Burman 3827aa8ad2 Tegra186: add support for bpmp_ipc driver
This patch enables the bpmp-ipc driver for Tegra186 platforms,
to ask BPMP firmware to toggle SE clock.

Change-Id: Ie63587346c4d9b7e54767dbee17d0139fa2818ae
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>
2020-03-09 15:25:16 -07:00
Harvey Hsieh 41554fb2eb Tegra210: SE: add context save support
Tegra210B01 SoCs support atomic context save for the two SE
hardware engines. Tegra210 SoCs have support for only one SE
engine and support a software based save/restore mechanism
instead.

This patch updates the SE driver to make this change.

Change-Id: Ia5e5ed75d0fe011f17809684bbc2ed2338925946
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
2020-03-09 15:25:15 -07:00
kalyani chidambaram 24902fae24 Tegra210: update the PMC blacklisted registers
Update the list to include PMC registers that the NS world cannot
access even with smc calls.

Change-Id: I588179b56ebc0c29200b55e6d61535fd3a7a3b7e
Signed-off-by: kalyani chidambaram <kalyanic@nvidia.com>
2020-03-09 15:25:15 -07:00
Andre Przywara 7b8fe2de31 spe: Use generic console_t data structure
Since now the generic console_t structure holds the UART base address as
well, let's use that generic location and drop the UART driver specific
data structure at all.

Change-Id: I75dbfafb67849833b3f7b5047e237651e3f553cd
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2020-02-25 09:34:38 +00:00
Varun Wadekar 5d52aea89d Tegra: handler to check support for System Suspend
Tegra210 SoCs need the sc7entry-fw to enter System Suspend mode,
but there might be certain boards that do not have this firmware
blob. To stop the NS world from issuing System suspend entry
commands on such devices, we ned to disable System Suspend from
the PSCI "features".

This patch removes the System suspend handler from the Tegra PSCI
ops, so that the framework will disable support for "System Suspend"
from the PSCI "features".

Original change by: kalyani chidambaram <kalyanic@nvidia.com>

Change-Id: Ie029f82f55990a8b3a6debb73e95e0e218bfd1f5
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-02-20 09:25:45 -08:00
Varun Wadekar 6f47acdb3b Tegra: platform handler to relocate BL32 image
This patch provides platforms an opportunity to relocate the
BL32 image, during cold boot. Tegra186 platforms, for example,
relocate BL32 images to TZDRAM memory as the previous bootloader
relies on BL31 to do so.

Change-Id: Ibb864901e43aca5bf55d8c79e918b598c12e8a28
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-02-20 09:25:45 -08:00
Varun Wadekar e44f86ef2b Tegra: remove weakly defined PSCI platform handlers
This patch removes all the weakly defined PSCI handlers defined
per-platform, to improve code coverage numbers and reduce MISRA
defects.

Change-Id: I0f9c0caa0a6071d0360d07454b19dcc7340da8c2
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-01-31 13:19:38 -08:00
Varun Wadekar 5f1803f90f Tegra: per-SoC DRAM base values
Tegra194 supports upto 64GB of DRAM, whereas the previous SoCs support
upto 32GB DRAM. This patch moves the common DRAM base/end macros to
individual Tegra SoC headers to fix this anomaly.

Change-Id: I1a9f386b67c2311baab289e726d95cef6954071b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-01-31 13:19:08 -08:00
Varun Wadekar 4a9026d413 Tegra194: enable driver for general purpose DMA engine
This patch enables the GPCDMA for all Tegra194 platforms to help
accelerate all the memory copy operations.

Change-Id: I8cbec99be6ebe4da74221245668b321ba9693479
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-01-23 09:02:46 -08:00
Varun Wadekar ceb12020fb Tegra194: organize the memory/mmio map to make it linear
This patch organizes the platform memory/mmio map, so that the base
addresses for the apertures line up in ascending order. This makes
it easier for the xlat_tables_v2 library to create mappings for each
mmap_add_region call.

Change-Id: Ie1938ba043820625c9fea904009a3d2ccd29f7b3
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-01-23 09:02:12 -08:00
Steven Kao 33a8ba6a38 Tegra194: support for boot params wider than 32-bits
The previous bootloader is not able to pass boot params wider than
32-bits due to an oversight in the scratch register being used. A
new secure scratch register #75 has been assigned to pass the higher
bits.

This patch adds support to parse the higher bits from scratch #75
and use them in calculating the base address for the location of
the boot params.

Scratch #75 format
====================
31:16 - bl31_plat_params high address
15:0 - bl31_params high address

Change-Id: Id53c45f70a9cb370c776ed7c82ad3f2258576a80
Signed-off-by: Steven Kao <skao@nvidia.com>
2020-01-23 09:01:42 -08:00
Puneet Saxena 34a6610aeb Tegra194: memctrl: set reorder depth limit for PCIE blocks
HW bug in third party PCIE IP - PCIE datapath hangs when there are
more than 28 outstanding requests on data backbone for x1 controller.

Suggested SW WAR is to limit reorder_depth_limit to 16 for
PCIE 1W/2AW/3W clients.

Change-Id: Id5448251c35d2a93f66a8b5835ae4044f5cef067
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
2020-01-23 09:01:25 -08:00
Puneet Saxena 1296da6d85 Tegra194: memctrl: update mss reprogramming as HW PROD settings
Memory clients are divided in to ISO/NonISO/Order/Unordered/Low
BW/High BW. Based on the client types, HW team recommends, different
memory ordering settings, IO coherency settings and SMMU register settings
for optimized performance of the MC clients.

For example ordered ISO clients should be set as strongly ordered and
should bypass SCF and directly access MC hence set as
FORCE_NON_COHERENT. Like this there are multiple recommendations
for all of the MC clients.

This change sets all these MC registers as per HW spec file.

Change-Id: I8a8a0887cd86bf6fe8ac7835df6c888855738cd9
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2020-01-23 09:00:23 -08:00
Arto Merilainen a0cacc955a Tegra194: memctrl: Disable PVARDC coalescer
Due to a hardware bug PVA may perform memory transactions which
cause coalescer faults. This change works around the issue by
disabling coalescer for PVA0RDC and PVA1RDC.

Change-Id: I27d1f6e7bc819fb303dae98079d9277fa346a1d3
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
2020-01-23 08:59:26 -08:00
steven kao d11f5e0509 Tegra194: toggle SE clock during context save/restore
This patch adds support to toggle SE clock, using the bpmp_ipc
interface, to enable SE context save/restore. The SE sequence mostly
gets called during System Suspend/Resume.

Change-Id: I9cee12a9e14861d5e3c8c4f18b4d7f898b6ebfa7
Signed-off-by: steven kao <skao@nvidia.com>
2020-01-23 08:58:38 -08:00
Krishna Reddy 221b8e5781 Tegra194: memctrl: force viw and vifalr/w transactions as non-coherent
Force memory transactions from viw and viflar/w as non-coherent from
no-override. This is necessary as iso clients shouldn't use coherent
path and stage-2 smmu mappings won't mark transactions as non-coherent.
For native case, no-override works. But, not for virtualization case.

Change-Id: I1a8fc17787c8d0f8579bdaeeb719084993e27276
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
2020-01-17 10:31:45 +00:00
Krishna Reddy 95f68bc498 Tegra194: memctrl: fix bug in client order id reg value generation
Client order id reset values are incorrectly and'ed with
mc_client_order_id macro, which resulted in getting reg value as
always zero. Updated mc_client_order_id macro to avoid and'ing outside
the macro, to take the reg value and update specific bit field
as necessary.

Change-Id: I880be6e4291d7cd58cf70d7c247a4044e57edd9e
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
2020-01-17 10:31:35 +00:00
Pritesh Raithatha c766adce65 Tegra194: memctrl: enable mc coalescer
This patch enable the Memory Controller's "Coalescer" feature to
improve performance of memory transactions.

Change-Id: I50ba0354116284f85d9e170c293ce77e9f3fb4d8
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
2020-01-17 10:31:28 +00:00
steven kao f3ec5c0cc9 Tegra194: update scratch registers used to read boot parameters
This patch changes SCRATCH_BOOT_PARAMS_ADDR macro to use SECURE_SCRATCH_RSV81
instead of SECURE_SCRATCH_RSV44. The previous level bootloader changed this
setting, so update here to keep both components in sync.

Change-Id: I4e0c1b54fc69482d5513a8608d0bf616677e1bdd
Signed-off-by: steven kao <skao@nvidia.com>
2020-01-17 10:31:20 +00:00
Varun Wadekar 67db323195 Tegra: include: fix violations of MISRA Rule 21.1
This patch fixes the violations of Rule 21.1 from all the
Tegra common header files.

Rule 21.1 "#define and #undef shall not be used on a reserved
           identifier or reserved macro name"

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I2e117645c110e04c13fa86ebbbb38df4951d2185
2020-01-12 14:44:40 -08:00
Manish Pandey 13be0ee40f Merge "plat: nvidia: remove spurious UTF-8 characters at top of platform files" into integration 2020-01-10 16:58:24 +00:00
Olivier Deprez f1f7201994 plat: nvidia: remove spurious UTF-8 characters at top of platform files
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: Iee7fb43990047b27972e99572ec4b3dc4e5c0423
2020-01-09 10:51:25 +01:00
Madhukar Pappireddy 7a05f06a84 Remove redundant declarations.
In further patches, we wish to enable -wredundant-decls check as
part of warning flags by default.

Change-Id: I43410d6dbf40361a503c16d94ccf0f4cf29615b7
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
2020-01-08 18:00:25 -06:00
Pritesh Raithatha 8ecc429143 Tegra194: introduce tegra_mc_def.h
This patch introduces memory controller register defines
for Tegra194 platforms.

Change-Id: I6596341ae817b6cec30cb74d201ad854a0c8c0a6
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
2019-12-10 09:59:09 -08:00
Steven Kao 56c27438bd Tegra194: 40-bit wide memory address space
This patch updates the memory address space, physical and virtual,
to be 40-bits wide for all Tegra194 platforms.

Change-Id: Ie1bcdec2c4e8e15975048ce1c2a31c2ae0dd494c
Signed-off-by: Steven Kao <skao@nvidia.com>
2019-12-10 09:57:24 -08:00
Jeetesh Burman 2d1f101067 Tegra194: add support to reset GPU
This patch adds macros, to define registers required to support GPU
reset, for Tegra194 SoCs.

Change-Id: Ifa7e0161b9e8de695a33856193f500b847a03526
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>
2019-11-28 11:14:21 -08:00
Steven Kao 95397d9661 Tegra194: memctrl: fix logic to check TZDRAM config register access
This patch fixes the logic to check if the previous bootloader has
disabled access to the TZDRAM configuration registers. The polarity
for the bit was incorrect in the previous check.

Change-Id: I7a0ba4f7b1714997508ece904c0261ca2c901a03
Signed-off-by: Steven Kao <skao@nvidia.com>
2019-11-28 11:14:21 -08:00
Varun Wadekar 117dbe6ce9 Tegra: introduce plat_enable_console()
This patch introduces the 'plat_enable_console' handler to allow
the platform to enable the right console. Tegra194 platform supports
multiple console, while all the previous platforms support only one
console.

For Tegra194 platforms, the previous bootloader checks the platform
config and sets the uart-id boot parameter, to 0xFE. On seeing this
boot parameter, the platform port uses the proper memory aperture
base address to communicate with the SPE. This functionality is
currently protected by a platform macro, ENABLE_CONSOLE_SPE.

Change-Id: I3972aa376d66bd10d868495f561dc08fe32fcb10
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-11-28 11:14:21 -08:00
Varun Wadekar f0222c23fd Tegra: include: drivers: introduce spe.h
This patch introduces a header file for the spe-console driver. This
file currently provides a device struct and a registration function
call for clients.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: Ic65c056f5bd60871d8a3f44f2c1210035f878799
2019-11-28 11:14:21 -08:00