The AM642 EValuation Module (EVM) is a board that provides access to
various peripherals available on the AM642 SoC, such as PCIe, USB 2.0,
CPSW Ethernet, ADC, and more.
Add basic support.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
The AM642 SoC belongs to the K3 Multicore SoC architecture platform,
providing advanced system integration to enable applications such as
Motor Drives, PLC, Remote IO and IoT Gateways.
Some highlights of this SoC are:
* Dual Cortex-A53s in a single cluster, two clusters of dual Cortex-R5F
MCUs, and a single Cortex-M4F.
* Two Gigabit Industrial Communication Subsystems (ICSSG).
* Integrated Ethernet switch supporting up to a total of two external
ports.
* PCIe-GEN2x1L, USB3/USB2, 2xCAN-FD, eMMC and SD, UFS, OSPI memory
controller, QSPI, I2C, eCAP/eQEP, ePWM, ADC, among other
peripherals.
* Centralized System Controller for Security, Power, and Resource
Management (DMSC).
See AM64X Technical Reference Manual (SPRUIM2, Nov 2020)
for further details: https://www.ti.com/lit/pdf/spruim2
Introduce basic support for the AM642 SoC to enable SD/MMC boot.
Introduce a limited set of MAIN domain periperhals under cbass_main and
a placeholder cbass_mcu node for future MCU domain usage.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Add pinctrl macros for AM64 SoC. These macro definitions are similar to
that of previous platforms, but adding new definitions to avoid any
naming confusions in the soc dts files.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
AM64x uses a different thread mapping that existing K3 SoCs, so update
the valid thread ID list to include those used for AM64x.
Also remove the comment identifying the purpose of each thread ID. The
purpose of the thread ID is specified when describing the threads in the
device tree and the same ID can mean different things on different SoCs,
so the comment is not useful.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Add support for the controller present on the AM642 SoC.
There are instances:
sdhci0: 8bit bus width, max 400 MBps
sdhci1: 4bit bus width, max 100 MBps
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Change the memory attributes for the DDR regions used by the remote
processors on AM65x so that the cores can see and execute the proper code.
A separate table based on the previous K3 SoCs is introduced since the
number of remote processors and their DDR usage is different between the
SoC families.
Signed-off-by: Keerthy J <j-keerthy@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
The AM642 SoCs use the Main R5FSS0 as a boot processor, and runs
the R5 SPL that performs the initialization of the System Controller
processor and starting the Arm Trusted Firmware (ATF) on the Arm
Cortex A53 cluster. The Core0 serves as this boot processor and is
parked in WFE after all the initialization. Core1 does not directly
participate in the boot flow, and is simply parked in a WFI.
Power down these R5 cores (and the associated RTI timer resources
that were indirectly powered up) after starting up ATF on A53 by
using the appropriate SYSFW API in release_resources_for_core_shutdown().
This allows these Main R5F cores to be further controlled from the
A53 to run regular applications.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Use the System Firmware (SYSFW) loader framework to load and start
the SYSFW as part of the AM642 early initialization sequence. Also
make use of existing logic to detect if ROM has already loaded sysfw
and avoided attempting to reload and instead just prepare to use already
running firmware.
While at it also initialize the MAIN_UART1 pinmux as it is used by SYSFW
to print diagnostic messages.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
For AM642, ROM supports loading system firmware directly
from boot image. ROM passes information about the number of
images that are loaded to bootloader at a specific address
that is temporary. Add support for storing this information
somewhere permanent before it gets corrupted.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
To access various control MMR functionality the registers need to
be unlocked. Do that for all control MMR regions in the MAIN domain.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
AM642 allows for booting from primary or backup boot media.
Both media can be chosen individually based on switch settings.
ROM looks for a valid image in primary boot media, if not found
then looks in backup boot media. In order to pass this boot media
information to boot loader, ROM stores a value at a particular
address. Add support for reading this information and determining
the boot media correctly.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
The AM642 SoC belongs to the K3 Multicore SoC architecture platform,
providing advanced system integration to enable applications such as
Motor Drives, PLC, Remote IO and IoT Gateways.
Some highlights of this SoC are:
* Dual Cortex-A53s in a single cluster, two clusters of dual Cortex-R5F
MCUs, and a single Cortex-M4F.
* Two Gigabit Industrial Communication Subsystems (ICSSG).
* Integrated Ethernet switch supporting up to a total of two external
ports.
* PCIe-GEN2x1L, USB3/USB2, 2xCAN-FD, eMMC and SD, UFS, OSPI memory
controller, QSPI, I2C, eCAP/eQEP, ePWM, ADC, among other
peripherals.
* Centralized System Controller for Security, Power, and Resource
Management (DMSC).
See AM64X Technical Reference Manual (SPRUIM2, Nov 2020)
for further details: https://www.ti.com/lit/pdf/spruim2
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Enable all relevant configs needed for SPL to apply overlays to U-Boot.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
The am65x evm supports several daughter boards, the presence of which is
detected by reading the state of a GPIO of a I2C gpio expander.
To detect the daughter in the SPL, we need to enable the support for
this GPIO expander.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Add sysinfo DT node so that overlays can be detected in SPL.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Enable SPL_BOARD_INIT. In spl_board_init(), do the detection of the
daughter boards and probe the K3 board driver.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This sysinfo driver only implements the get_fit_loadable() callback.
It uses a list of dtbo names computed by the board-level code.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
The ti_sci_msg_req_reboot message payload has been extended to include a
domain field, but for the purposes of u-boot this should be zero to
reset the entire SoC as it did before. Include domain for completeness
and set to zero to ensure proper operation.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Update the default dtbs for AM57xx EVMs to map to AM57xx EVM
specific dtbs, instead of the beagle-x15 ones.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Suman Anna <s-anna@ti.com>
The J721E R5 SPL will no longer support booting of the Main R5FSS Core0
after the R5 SPL re-architecture for System Firmware split. The MCU R5F
branch-only boot does not use the K3 R5F remoteproc driver, and relies
only on the filesystem (FS) support for now. The K3 R5F remoteproc driver
is therefore no longer needed in R5 SPL, so drop it from the J721E R5
defconfig.
Signed-off-by: Suman Anna <s-anna@ti.com>
The MAIN R5FSS0 cluster and corresponding nodes are no longer required
to be enabled in R5 SPL after removing the support for booting any core
from this cluster on R5 SPL. So, remove these from the relevant dts
files.
This is essentially a revert of the additions done in commit 2984b82b3b
("arm: dts: k3-j721e-r5: Enable r5fss0 cluster in SPL").
Signed-off-by: Suman Anna <s-anna@ti.com>
The mach-k3 common code defined a weak start_non_linux_remote_cores()
function so that the proper implementation can be plugged in the
SoC-specific source files. This won't be needed anymore, so remove the
the common code.
Signed-off-by: Suman Anna <s-anna@ti.com>
The common J7 specific start_non_linux_remote_cores() override function
implements the logic to load and boot the Main R5FSS Core0 from R5 SPL.
This won't be supported any more for either J721E or J7200 after the R5
SPL rearchitecture for the System Firmware split into TI Foundation
Security (TIFS) and Device Management (DM) firmwares. So, cleanup the
corresponding code and the related SPL env variables.
Signed-off-by: Suman Anna <s-anna@ti.com>
The Main R5FSS Core0 on J721E SoCs is currently booted from R5 SPL
itself to achieve certain product-level early-boot metrics. Move the
booting of this core from R5 SPL to A72 U-Boot in preparation for
the R5 SPL re-architecture code to deal with the System Firmware
functionality split between two different processors.
The env variables are left as is for now, and will be cleaned up
in a subsequent patch.
Signed-off-by: Suman Anna <s-anna@ti.com>
commit 468ec2f3ef upstream.
The K3 R5F remoteproc driver in U-Boot was upstreamed prior to the
equivalent remoteproc driver in the Linux kernel. Some of the DT
properties used in U-Boot got upstreamed using different names
in Linux kernel.
The modified property names include the R5F cluster mode configuration
property "lockstep-mode"; and three different individual R5F core config
properties - "atcm-enable", "btcm-enable" and "loczrama". The property
names were updated as follows:
lockstep-mode => ti,cluster-mode
atcm-enable => ti,atcm-enable
btcm-enable => ti,btcm-enable
loczrama => ti,loczrama
Update the K3 R5F remoteproc driver, the corresponding binding, and
all the existing usage in AM65x, J721E and J7200 dts files all at
once to use the new properties and to not break any bisectability.
Signed-off-by: Suman Anna <s-anna@ti.com>
[s-anna@ti.com: cherry-pick commit '468ec2f3ef8f' from v2021.04-rc2]
commit 003d10ba64 upstream.
Current BSS allocation of SPL is as below:
$ size spl/u-boot-spl
text data bss dec hex filename
132369 7852 1496 141717 22995 spl/u-boot-spl
But 20KB is allocated currently for BSS. Reduce it to 3KB and save some
space for stack.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
commit 489274eb6c upstream.
Add configs for voltage switching and UHS modes for the SD card
and HS200 for the eMMC.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit 9aa4302c02 upstream.
There's an issue with the base board in which the power cycle
circuit takes way longer to power down than expected by mmc core.
code. This prevents the card from enumerating in UHS modes.
Disable UHS modes for this board until a new board revision fixes
the issue.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit 0758e9fe3f upstream.
Add the appropriate itapdly and clkbuf-sel values required for
some lower speed modes.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit 79a30b1128 upstream.
Add configs to support UHS modes for the SD card and HS200 for the eMMC.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit d1d34f7985 upstream.
Add configs to support UHS modes for the SD card and HS200 for the eMMC.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit b4e85ca0ba upstream.
Add support for UHS modes by adding the regulators to power cycle
and voltage switch the card. Also add pinmuxes required for each
node
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit f695347066 upstream.
Add support for the main_gpio0 node
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit f0a496a3d2 upstream.
Add support for regulators to power cycle and switch IO voltage to the
SD card. This enables support for UHS modes.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit 52de3c324d upstream.
Update otap delay values to match with the latest Data Manual[1].
[1] https://www.ti.com/lit/gpn/dra829v
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit 2121c7e2d5 upstream.
Because of fundamental interface issues in am65x pg1, only the
initial sdhci1 node at 25 MHz was added in the u-boot.dtsi
from which both the base-board.dts and r5-base-board.dts
inherit the node. Move the node out to k3-am65-main.dtsi
where it belongs and add the board specific properties
in base-board.dts and r5-base-board.dts
This ensures dts compatibility with the kernel dts in the
base-board.dts and enables the SD card interface at 50 MHz
and High Speed mode
While we are here, also fix the main_mmc0_pins_default
property to be included and inherit from the base-board.dts
instead of the u-boot.dtsi
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
commit e9fbbba4e3 upstream.
Use the generic sdhci_set_control_reg() instead of duplicating
in platform driver.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
commit 27a87c834f upstream.
According to the AM654x Data Manual[1], the setup timing in lower speed
modes can only be met if the controller uses a falling edge data launch.
To ensure this, the HIGH_SPEED_ENA (HOST_CONTROL[2]) bit should be
cleared in default speed, SD high speed, MMC high speed, SDR12 and SDR25
speed modes.
Use the sdhci writeb callback to implement this condition.
[1] http://www.ti.com/lit/gpn/am6546 Section 5.10.5.16.1
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
commit a759abf569 upstream.
With the new SW tuning App note[1], a custom tuning algorithm is
required for eMMC HS200, HS400 and SD card UHS modes. The algorithm
involves running through the 32 possible input tap delay values and
sending the appropriate tuning command (CMD19/21) for each of them
to get a fail or pass result for each of the values. Typically, the
range will have a small contiguous failing window. Considering the
tuning range as a circular buffer, the algorithm then sets a final
tuned value directly opposite to the failing window.
[1] https://www.ti.com/lit/pdf/spract9
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[praneeth@ti.com: cherry-pick to ti-u-boot-2020.01 and fix build error
because of undefined reference to `dev_get_plat']
Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
commit 194c3756c8 upstream.
Add support for writing new clock buffer select property for both
the am654x and j721e 4 bit IPs
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
commit c964447ea3 upstream.
DLL need only be enabled for speed modes and clock frequencies at or
above 50 MHz. For speed modes that don't enable the DLL, we need to
configure a static input delay value. This involves reading an optional
itap-del-sel-* value from the device tree and configuring it for the
appropriate speed mode.
Therefore, move all dll configurations to their own functions and gate it
with 50 MHz speed and a minimum mode. If both these conditions are not
satisfied then configure delay chain modes.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
commit 8c32b5f370 upstream.
Add Support for AM65x PG2.0. Use the SoC bus framework to fixup
the platform data and do DLL calibration if the revision is 1.0
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[praneeth@ti.com: cherry-pick from v2021.04-rc2 and resolve merge-conflict]
Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
Dave Gerlach
Keerthy
Suman Anna
Jean-Jacques Hiblot
Tero Kristo
Lokesh Vutla
Faiz Abbas