Re: [PATCH] arm64: dts: aspeed: ast2700-evb: Reserve coprocessor, IPC and VBIOS memory

[Andrew Jeffery]

On Thu, 29 Oct 2026 15:51:54 +0800, Billy Tsai wrote:
> On the AST2700 EVB, the boot firmware places the SSP and TSP
> coprocessor firmware in 0x42c000000-0x42fffffff, the IPC shared memory
> in 0x431080000-0x431b2ffff and two VBIOS regions in
> 0x431bb0000-0x431bcffff, and locks these ranges so that accesses from
> the Cortex-A35 are blocked. U-Boot does not add reserved-memory nodes
> for these ranges to the DT it passes to Linux, and they are inside the
> memory node, so the kernel uses them as ordinary RAM and the EVB fails
> to boot once it touches them.
> 
> [...]

Thanks, I've applied this to the BMC tree.

-- 
Andrew Jeffery <andrew@xxxxxxxxxxxxxxxxxxxx>