[U-Boot] [PATCH v2 12/26] arm: dts: k3-j721e-mcu: Add MCU domain R5F cluster node

[Tom Rini]

On Wed, Sep 04, 2019 at 04:01:37PM +0530, Lokesh Vutla wrote:

> The J721E SoCs have 3 dual-core Arm Cortex-R5F processor (R5FSS)
> subsystems/clusters. One R5F cluster (MCU_R5FSS0) is present within
> the MCU domain, and the remaining two clusters are present in the
> MAIN domain (MAIN_R5FSS0 & MAIN_R5FSS1). Each of these 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. These
> subsystems have 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 LockStep 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!

-- 
Tom
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