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SubjectRe: [PATCH 0/6] soc: Add Baikal-T1 SoC APB/AXI EHB and L2-cache drivers
On Fri, Mar 6, 2020 at 2:07 PM <> wrote:
> From: Serge Semin <>
> Aside from PCIe/SATA/DDR/I2C/CPU-reboot specific settings the Baikal-T1
> system controller provides three vendor-specific blocks. In particular
> there are two Errors Handler Blocks to detect and report an info regarding
> any problems discovered on the AXI and APB buses. These are the main buses
> utilized by the SoC devices to interact with each other. In addition there
> is a way to tune the MIPS P5600 CM2 L2-cache up by setting the Tag/Data/WS
> L2-to-RAM latencies. All of this functionality is implemented in the
> APB/AXI EHB and L2-cache control block drivers to be a part of the kernel soc
> subsystem (as being specific to the Baikal-T1 SoC) and introduced in the
> framework of this patchset.
> This patchset is rebased and tested on the mainline Linux kernel 5.6-rc4:
> commit 98d54f81e36b ("Linux 5.6-rc4").

I have no objection to the drivers, but I wonder if these should be
in drivers/bus and drivers/memory instead of drivers/soc, which have
similar drivers already. The driver for the L2 cache is not really a
memory controller driver, but it may be close enough, and we
already have a couple of different things in there.


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