Commit graph

5 commits

Author SHA1 Message Date
Suman Anna
35f21c3ac6 arm: dts: k3-am65-mcu: Add MCU domain R5F DT nodes
The AM65x SoCs has a single dual-core Arm Cortex-R5F processor
subsystem/cluster (MCU_R5FSS0) within the MCU domain. This cluster
can be configured at boot time to be either run in a LockStep mode
or in an Asymmetric Multi Processing (AMP) fashion in Split-mode.
This subsystem has 64 KB each Tightly-Coupled Memory (TCM) internal
memories for each core split between two banks - ATCM and BTCM
(further interleaved into two banks). There are some IP integration
differences from standard Arm R5 clusters such as the absence of
an ACP port, presence of an additional TI-specific Region Address
Translater (RAT) module for translating 32-bit CPU addresses into
larger system bus addresses etc.

Add the DT node for the MCU domain R5F cluster/subsystem, the two
R5 cores are added as child nodes to the main cluster/subsystem node.
The cluster is configured to run in Split-mode by default, with the
ATCMs enabled to allow the R5 cores to execute code from DDR with
boot-strapping code from ATCM. The inter-processor communication
between the main A72 cores and these processors is achieved through
shared memory and Mailboxes.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-10-11 10:07:35 -04:00
Andreas Dannenberg
ba7907c79c arm64: dts: k3-am654-base-board: Add I2C GPIO expander @ 0x38
The AM654 base board has a TCA9554/PCA9554-type GPIO expander on the
wkup_i2c0 bus at address 0x38 that is used to detect the presence of
daughter cards.  Add a respective DTS description of this expander
to enable its use.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-07-17 11:13:18 -04:00
Andreas Dannenberg
7e0363b285 arm: dts: k3-am654-base-board: Enable wkup_i2c0 across all boot stages
To enable the use of an EEPROM-based board detection scheme we need to
be able to access the I2C bus associated with the EEPROMs across all
3 stages of U-Boot: R5 SPL, A53 SPL, and A53 U-Boot (proper). So go
ahead and add/update the wkup_i2c0 peripheral module DTS definitions
and its associated pinmux node accordingly.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-07-17 11:13:18 -04:00
Faiz Abbas
3a1a0dfc39 arm64: dts: k3: Sync sdhci0 node from kernel and change driver name
Sync the sdhci0 node from kernel. This changes the compatible that is
required to be there in the driver. Change the same for the SD card node
which is not yet supported in kernel. This also syncs the main_pmx0 node
as a side effect.

Also change the name of the driver to match the compatible in kernel.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-07-17 11:12:08 -04:00
Lokesh Vutla
ea8ad1d9b6 arm64: dts: k3: Add Support for AM654 SoC
Add initial DT support for AM654 EVM that runs on A53.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-09-11 08:32:55 -04:00