A follow-up to commit 842fb5de42
("drivers: use devfdt_get_addr_size_index_ptr when cast to pointer")
and commit 320a1938b6
("drivers: use devfdt_get_addr_index_ptr when cast to pointer").
In addition to using the *_ptr variants of these functions where the
address is cast to a pointer, this also changes devfdt_get_addr_*() to
dev_read_addr_*() in a few places. Some variable and field types are
changed from fdt_addr_t or phys_addr_t to void* where the cast was
happening later.
This patch fixes a number of compile warnings when building a 32bit
U-Boot with CONFIG_PHYS_64BIT=y. In some places, it also fixes error
handling where the return value of dev_read_addr() etc. was checked for
NULL instead of FDT_ADDR_T_NONE.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Make that condition more generic by checking if the memory controller
driver is enabled instead of using the EVM's config.
Signed-off-by: Dominik Haller <d.haller@phytec.de>
mcu_timer0 is used by u-boot as the tick-timer. Add it to the soc
devices lsit so it an be enabled via the k3 power controller.
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
mcu_timer0 is now used as the tick timer in u-boot, so this adds the
timer to the soc device list so it can be enabled via the k3 power
controller.
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Reid Tonking <reidt@ti.com>
This is now done using binman but this file was leftover and is now
unused, remove it.
Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
Use uintptr_t instead of phys_addr_t where appropriate, so passing the
addresses to writel() doesn't result in compile warnings when PHYS_64BIT
is set for 32bit builds (which is actually a useful configuration, as
the K3 SoC family boots from an R5 SPL, which may pass bank information
based on gd->bd->bi_dram to fdt_fixup_memory_banks() etc., so PHYS_64BIT
is needed for fixing up the upper bank).
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
When setting boot media to load the TIFS binary in legacy boot flow
(followed by J721E), get_timer() is called which eventually calls
dm_timer_init() to grab the tick-timer, which is mcu_timer0. Since we
need to set up the clocks before using the timer, move clk_k3 driver
probe before k3_sysfw_loader to ensure we have all necessary clocks set
up before.
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
U-Boot uses mcu_timer0 as the tick-timer, so add it to device list.
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Commit 65cc0e2a65 ("global: Move remaining CONFIG_SYS_* to CFG_SYS_*")
renamed CONFIG_SYS_UBOOT_START to CFG_SYS_UBOOT_START. Unfortunately,
this meant that the value was no longer available to the Makefile. This
caused imxrt to fail to boot. All the other boards that used this
variable were unaffected because they were using the default value
which is CONFIG_TEXT_BASE.
This commit converts CFG_SYS_UBOOT_START to Kconfig and sets the default
value to CONFIG_TEXT_BASE.
Suggested-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Suggested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h
Move this out of the common header and include it only where needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
While boot partition support with EMMC boot is useful, it is
constrained by the size of boot hardware partition itself.
In the case of K3 devices, tispl images can contain OP-TEE images that
can substantially vary in size and the u-boot image itself can vary over
time as we enable various features.
So use the CSD information in the case of EMMC_BOOT configuration being
enabled to pick boot partition or UDA FS mode operation to pick.
If EMMC_BOOT is disabled, then depend on filesystem configuration to
pick data from UDA.
While at this, drop the extraneous whitespace.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
The erratum is called locally, make it static, drop the #ifdeffery since
it will only be called in R5 build and mark it potentially unused to
stop compiler screaming at us.
While at this, drop the redundant return for a void function.
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Drop the #ifdeffery and use IS_ENABLED() inline check and let the compiler
do it's thing.
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
This adds initial support for the Toradex Verdin AM62 Quad 1GB WB IT
V1.0A module and subsequent V1.1 launch configuration SKUs. They are
strapped to boot from their on-module eMMC. U-Boot supports booting
from the on-module eMMC only, DFU support is disabled for now due to
missing AM62x USB support.
The device trees were taken straight from Linux v6.5-rc1.
Boot sequence is:
SYSFW ---> R5 SPL (both in tiboot3.bin) ---> ATF (TF-A) ---> OP-TEE
---> A53 SPL (part of tispl.bin) ---> U-boot proper (u-boot.img)
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Fix second mux option of clkout0 which should really be
DEV_BOARD0_CLKOUT0_IN_PARENT_HSDIV4_16FFT_MAIN_2_HSDIVOUT1_CLK10
rather than twice the same according to [1].
[1] https://software-dl.ti.com/tisci/esd/latest/5_soc_doc/am62x/clocks.html#clocks-for-board0-device
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
The following checks are more reasonable as the previous logs were a bit
misleading as we could still get the logs that the authetication is
being skipped but still authenticate. Move the debug prints and checks
to proper locations.
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Fix missing declaration of fdt_del_node_path() while compiling am625_fdt.c and
missing common_fdt.h include in common_fdt.c
Fixes: 70aa5a94d4 ("arm: mach-k3: am62: Fixup CPU core, gpu and pru nodes in fdt")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Timer0 is used by u-boot as the tick timer; Add it to the soc devices
list so it can be enabled via the k3 power controller.
Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Tested-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Cc: Francesco Dolcini <francesco@dolcini.it>
Cc: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Nishanth Menon <nm@ti.com>
The background firewall calculations were wrong, fix that to determine
both the background and foreground correctly.
Fixes: 8bfce2f998 ("arm: mach-k3: common: reorder removal of firewalls")
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Fix the regression that occurred during the alignment of binman series
merges along with these HS fixes that caused silent regression in this.
Fixes: 30a7ee87fd ("Kconfig: j721s2: Change K3_MCU_SCRATCHPAD_BASE to non firewalled region")
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Fix regression occurred during refactoring for the mentioned commit.
Fixes: bd6a247593 ("arm: mach-k3: security: separate out validating binary logic")
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Since binman is used to package bootloader images for all K3 devices, we
do not have to rely on the earlier methods to package them.
Scripts that were used to generate x509 certificate for tiboot3.bin and
generate tispl.bin, u-boot.img have been removed.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Use spl_dcache_enable, in place of setup_dram, arch_reserve_mmu to set
up pagetable, initialise DRAM and enable Dcache to avoid multiple
function calls.
Check for CONFIG_SPL_VIDEO in place of CONFIG_SPL_VIDEO_TIDSS to prevent
any build failure in case video config is not defined and video related
functions are called.
Check for CONFIG_SPL_SPLASH_SCREEN and CONFIG_SPL_BMP before calling
splash_display to avoid compilation failure.
Signed-off-by: Nikhil M Jain <n-jain1@ti.com>
In spl_dcache_enable after setting up page table, set gd->relocaddr
pointer to tlb_addr, to get next location to reserve memory. Align
tlb_addr with 64KB address.
Signed-off-by: Nikhil M Jain <n-jain1@ti.com>
Reviewed-by: Devarsh Thakkar <devarsht@ti.com>
There is little need to print the devstat information or when we exit a
function during a typical boot. Remove them to reduce the noise during
typical operation
Signed-off-by: Bryan Brattlof <bb@ti.com>
AM62x SoC is available in multiple variant:
- CPU cores (Cortex-A) AM62x1 (1 core), AM62x2 (2 cores), AM62x4 (4 cores)
- GPU AM625x with GPU, AM623x without GPU
- PRU (Programmable RT unit) can be present or not on AM62x2/AM62x4
Remove the relevant FDT nodes by reading the actual configuration
from the SoC registers, with that change is possible to have a single
dts/dtb file handling the different variant at runtime.
While removing GPU node and CPU nodes also the watchdog node
in the same Module Domain is removed.
A similar approach is implemented for example on i.MX8 and STM32MP1 SoC.
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Add register address and relevant bitmasks and shifts.
Allow reading these information:
- device identification
- number of cores (part of device identification)
- features (currently: PRU / no PRU)
- security
- functional safety
- speed grade
- temperature grade
- package
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Andrew Davis <afd@ti.com>
ft_system_setup cannot be enabled on SoC without msmc sram otherwise
fdt_fixup_msmc_ram function fails causing system reset.
Fix by moving fdt_fixup_msmc_ram to common_fdt.c file and creating
SoC (AM654, J721E and J721S2) specific files for fdt fixups.
This change was verified to not change anything on any existing board
(all the J721S2, AM654 and J721E boards requires it,
none of the remaining k3 boards require it).
Fixes: 30e96a2401 ("arm: mach-k3: Move MSMC fixup to SoC level")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
On security enforced (HS-SE) devices ROM firewalls OSPI data region3 that
is present in above 64bit region. Open this up in bootloader to allow
Linux to access OSPI flashes in mmap mode.
Without this kernel will crash when accessing this region due to
firewall violations on HS-SE devices.
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
In the first silicon revision of the am62x family of SoCs, the hardware
wakeup event cannot be used if software is unable to unlock the RTC
device within one second after boot. To work around this limitation
unlock RTC as soon as possible in the boot flow to maximize our chance
of linux being able to use this device.
Add the erratum i2327 workaround to initialize the RTC.
Signed-off-by: Nishanth Menon <nm@ti.com>
[bb@ti.com: rebased from 2021.01 and expanded commit and code messages]
Signed-off-by: Bryan Brattlof <bb@ti.com>
ATF and OPTEE regions may be firewalled from non-secure entities.
If we still map them for non-secure A53, speculative access may happen,
which will not cause any faults and related error response will be ignored,
but it's better to not to map those regions for non-secure A53 as there
will be no actual access at all.
Create separate table as ATF region is at different locations for am64
and am62/am62a.
Signed-off-by: Kamlesh Gurudasani <kamlesh@ti.com>
Add main_uart1 clocks in clk-data.c for J7200. Now,
main_uart1 clocks will be set up while booting the J7200 SoC.
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Add device data for main_uart1 in dev-data.c for J7200. Now,
main_uart1 will be powered on while booting the J7200 SoC.
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
When selecting UDA partition for booting. MMC read
mode was selected as RAW.
Due to growing/changing size of u-boot and tispl
images.
It will be better change to FS in case of UDA FS instead of
adjusting offsets with new change.
Signed-off-by: Udit Kumar <u-kumar1@ti.com>
Add main_uart5 clocks in clk-data.c for J721S2. Now,
main_uart5 clocks will be set up while booting the J721S2 SoC.
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Add device data for main_uart5 in dev-data.c for J721S2. Now,
main_uart5 will be powered on while booting the J721S2 SoC.
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Add main_uart2 clocks in clk-data.c for J721E. Now,
main_uart2 clocks will be set up while booting the J721E SoC.
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Add device data for main_uart2 in dev-data.c for J721E. Now,
main_uart2 will be powered on while booting the J721E SoC.
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
K3 devices have some firewalls set up by ROM that we usually remove so
that the development is easy in HS devices.
While removing the firewalls disabling a background region before
disabling the foreground regions keeps the firewall in a state where all
the transactions will be blacklisted until all the regions are disabled.
This causes a race for some other entity trying to access that memory
region before all the firewalls are disabled and causes an exception.
Since there is no guarantee on where the background regions lie based on
ROM configurations or no guarantee if the background regions will allow
all transactions across the memory spaces, iterate the loop twice removing
the foregrounds first and then backgrounds.
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
This reverts commit b8ebf24e7f.
This patch seems to be fundamentally wrong and requires a different way
on how the background firewalls should be configured so revert the patch
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
K3 GP devices allows booting the secure binaries on them by bypassing
the x509 header on them.
ATF and OPTEE firewalling required the rproc_load to be called before
authentication. This change caused the failure for GP devices that
strips off the headers. The boot vector had been set before the headers
were stripped off causing the runtime stripping to fail and stripping
becoming in-effective.
Separate out the secure binary check on GP/HS devices so that the
boot_vector could be stripped before calling rproc_load. This allows
keeping the authentication later when the cluster is on along with
allowing the stripping of the binaries in case of gp devices.
Fixes: 1e00e9be62 ("arm: mach-k3: common: re-locate authentication for atf/optee")
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
When booting with HS silicon, the system firmware image is 278270, which
is slightly larger than currently allocated amount.
This can cause unexpected behavior if this overlap interferes with other
things in memory, so increase this with a slightly margin added as well
to avoid any boot issues that can appear after system firmware gets
loaded.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tero Kristo <kristo@kernel.org>
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
In non-combined boot flow for K3, all the firewalls are locked by default
until sysfw comes up. Rom configures some of the firewall for its usage
along with the SRAM for R5 but the PSRAM region is still locked.
The K3 MCU Scratchpad for j721e was set to a PSRAM region triggering the
firewall exception before sysfw came up. The exception started happening
after adding multi dtb support that accesses the scratchpad for reading
EEPROM contents.
The commit changes R5 MCU scratchpad for j721e to an SRAM region.
Old Map:
┌─────────────────────────────────────┐ 0x41c00000
│ SPL │
├─────────────────────────────────────┤ 0x41c40000 (approx)
│ STACK │
├─────────────────────────────────────┤ 0x41c85b20
│ Global data │
│ sizeof(struct global_data) = 0xd8 │
├─────────────────────────────────────┤ gd->malloc_base = 0x41c85bfc
│ HEAP │
│ CONFIG_SYS_MALLOC_F_LEN = 0x70000 │
├─────────────────────────────────────┤ CONFIG_SPL_BSS_START_ADDR
│ SPL BSS │ (0x41cf5bfc)
│ CONFIG_SPL_BSS_MAX_SIZE = 0xA000 │
└─────────────────────────────────────┘ CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX
(0x41cffbfc)
New Map:
┌─────────────────────────────────────┐ 0x41c00000
│ SPL │
├─────────────────────────────────────┤ 0x41c40000 (approx)
│ EMPTY │
├─────────────────────────────────────┤ 0x41c81920
│ STACK │
│ SPL_SIZE_LIMIT_PROVIDE_STACK=0x4000 │
├─────────────────────────────────────┤ 0x41c85920
│ Global data │
│ sizeof(struct global_data) = 0xd8 │
├─────────────────────────────────────┤ gd->malloc_base = 0x41c859f0
│ HEAP │
│ CONFIG_SYS_MALLOC_F_LEN = 0x70000 │
├─────────────────────────────────────┤ CONFIG_SPL_BSS_START_ADDR
│ SPL BSS │ (0x41cf59f0)
│ CONFIG_SPL_BSS_MAX_SIZE = 0xA000 │
├─────────────────────────────────────┤ 0x41cff9fc
│ NEW MCU SCRATCHPAD │
│ SYS_K3_MCU_SCRATCHPAD_SIZE = 0x200 │
└─────────────────────────────────────┘ CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX
(0x41cffbfc)
Fixes: ab977c8b91 ("configs: j721s2_evm_r5: Enable support for building multiple dtbs into FIT")
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
[n-francis@ti.com: SRAM allocation addressing diagram]
Signed-off-by: Neha Francis <n-francis@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Kamlesh Gurudasani <kamlesh@ti.com>
When building for secure devices using non-buildman based image generation
the signed tispl.bin file is called tispl.bin_HS. Also build the unsigned
tispl.bin file as expected.
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
On K3 HS-SE devices all the firewalls are locked by default
until sysfw comes up. Rom configures some of the firewall for its usage
along with the SRAM for R5 but the PSRAM region is still locked.
The K3 MCU Scratchpad for j721s2 was set to a PSRAM region triggering the
firewall exception before sysfw came up. The exception started happening
after adding multi dtb support that accesses the scratchpad for reading
EEPROM contents.
Old map:
┌─────────────────────────────────────┐ 0x41c00000
│ SPL │
├─────────────────────────────────────┤ 0x41c61f20 (approx)
│ STACK │
├─────────────────────────────────────┤ 0x41c65f20
│ Global data │
│ sizeof(struct global_data) = 0xd8 │
├─────────────────────────────────────┤ gd->malloc_base = 0x41c66000
│ HEAP │
│ CONFIG_SYS_MALLOC_F_LEN = 0x10000 │
├─────────────────────────────────────┤ CONFIG_SPL_BSS_START_ADDR
│ SPL BSS │ (0x41c76000)
│ CONFIG_SPL_BSS_MAX_SIZE = 0xA000 │
├─────────────────────────────────────┤ (0x41c80000)
│ DM DATA │
├─────────────────────────────────────┤ (0x41c84130) (approx)
│ EMPTY │
└─────────────────────────────────────┘ CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX
(0x41cffbfc)
New map:
┌─────────────────────────────────────┐ 0x41c00000
│ SPL │
├─────────────────────────────────────┤ 0x41c61f20 (approx)
│ STACK │
├─────────────────────────────────────┤ 0x41c65f20
│ Global data │
│ sizeof(struct global_data) = 0xd8 │
├─────────────────────────────────────┤ gd->malloc_base = 0x41c66000
│ HEAP │
│ CONFIG_SYS_MALLOC_F_LEN = 0x10000 │
├─────────────────────────────────────┤ CONFIG_SPL_BSS_START_ADDR
│ SPL BSS │ (0x41c76000)
│ CONFIG_SPL_BSS_MAX_SIZE = 0xA000 │
├─────────────────────────────────────┤ (0x41c80000)
│ DM DATA │
├─────────────────────────────────────┤ (0x41c84130) (approx)
│ EMPTY │
├─────────────────────────────────────┤ SYS_K3_MCU_SCRATCHPAD_BASE
│ SCRATCHPAD │ (0x41cff9fc)
│ SYS_K3_MCU_SCRATCHPAD_SIZE = 0x200 │
└─────────────────────────────────────┘ CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX
(0x41cffbfc)
Reviewed-by: Kamlesh Gurudasani <kamlesh@ti.com>
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Errata doc: https://www.ti.com/lit/pdf/sprz457
Errata ID i2331 CPSW: Device lockup when reading CPSW registers
Details: A device lockup can occur during the second read of any CPSW
subsystem register after any MAIN domain power on reset (POR). A MAIN
domain POR occurs using the hardware MCU_PORz signal, or via software
using CTRLMMR_RST_CTRL.SW_MAIN_POR or CTRLMMR_MCU_RST_CTRL.SW_MAIN_POR.
After these resets, the processor and internal bus structures may get
into a state which is only recoverable with full device reset using
MCU_PORz.
Due to this errata, Ethernet boot should not be used on this device.
Workaround(s): To avoid the lockup, a warm reset should be issued after
a MAIN domain POR and before any access to the CPSW registers. The warm
reset realigns internal clocks and prevents the lockup from happening.
Workaround above errata by calling do_reset() in case of cold boot in
order to trigger warm reset. This needs enabling SYSRESET driver in R5
SPL to enable TI SCI reset driver.
Signed-off-by: Nitin Yadav <n-yadav@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Enable Quality of Service (QoS) blocks for Display SubSystem (DSS), by
servicing the DSS - DDR traffic from the Real-Time (RT) queue. This is
done by setting the DSS DMA orderID to 8.
The C7x and VPAC have been overwhelming the DSS's access to the DDR
(when it was accessing via the Non Real-Time (NRT) Queue), primarily
because their functional frequencies, and hence DDR accesses, were
significantly higher than that of DSS. This led the display to flicker
when certain edgeAI models were being run.
With the DSS traffic serviced from the RT queue, the flickering issue
has been found to be mitigated.
The am62a qos files are auto generated from the k3 resource partitioning
tool.
Section-3.1.12, "QoS Programming Guide", in the AM62A TRM[1], provides
more information about the QoS, and section-14.1, "System Interconnect
Registers", provides the register descriptions.
[1] AM62A Tech Ref Manual: https://www.ti.com/lit/pdf/spruj16
Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
