Re: [PATCH v8 2/3] dt-bindings: mfd: aspeed,ast2x00-scu: Describe AST2700 SCU0
"Rob Herring (Arm)" <[email protected]>
| Newsgroups | org.ozlabs.lists.openbmc,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-clk,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-gpio,org.kernel.vger.linux-kernel,org.ozlabs.lists.linux-aspeed |
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| Message-ID | <[email protected]> |
On Tue, 28 Apr 2026 17:49:46 +0800, Billy Tsai wrote: > AST2700 consists of two interconnected SoC instances, each with its own > System Control Unit (SCU). The SCU0 provides pin control, interrupt > controllers, clocks, resets, and address-space mappings for the > Secondary and Tertiary Service Processors (SSP and TSP). > > Describe the SSP/TSP address mappings using the standard > memory-region and memory-region-names properties. > > Disallow legacy child nodes that are not present on AST2700, including > p2a-control and smp-memram. The latter is unnecessary as software can > access the scratch registers via the SCU syscon. > > Also allow the AST2700 SoC0 pin controller to be described as a child > node of the SCU0, and add an example illustrating the SCU0 layout, > including reserved-memory, interrupt controllers, and pinctrl. > > Signed-off-by: Billy Tsai <[email protected]> > --- > .../bindings/mfd/aspeed,ast2x00-scu.yaml | 114 +++++++++++++++++++++ > 1 file changed, 114 insertions(+) > Reviewed-by: Rob Herring (Arm) <[email protected]>