[U-Boot] [PATCH v2 16/26] arm: dts: k3-am65-mcu: Add MCU domain R5F DT nodes
trini at konsulko.com
Sat Oct 12 20:25:31 UTC 2019
On Wed, Sep 04, 2019 at 04:01:41PM +0530, Lokesh Vutla wrote:
> From: Suman Anna <s-anna at ti.com>
> 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 at ti.com>
> Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
Applied to u-boot/master, thanks!
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