On 1/7/25 6:01 AM, Peng Fan wrote:
On Mon, Jan 06, 2025 at 09:39:57PM +0100, Marek Vasut wrote:
On 1/6/25 6:27 AM, Alice Guo (OSS) wrote:
主题: [EXT] Re: [PATCH v3 01/17] mailbox: add i.MX95 Messaging Unit (MU)
driver
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On 1/3/25 7:45 AM, Alice Guo wrote:
From: Peng Fan <[email protected]>
i.MX95 Messaging Unit (MU) enables 2 processors on a chip to
communicate and coordinate by passing messages (e.g. frame
information, event notices and requests) through the MU interface.
This patch provides a driver for i.MX95 MU using the common mailbox
framework. Currently, SCMI exchanges on i.MX95 uses a mailbox
transport with SMT format, and the hardware used is this MU.
Is this ported from Linux ? If so, as of which mainline Linux kernel commit ?
Yes, u-boot/drivers/mailbox/imx-mailbox.c is ported v6.12.8 Linux.
Please add that information into the commit message, including the kernel
version and Linux commit ID , in case this driver needs to be updated.
Can you add older iMX SoC support while adding this driver ? It seems
imx6..imx95 MU IP look very similar.
This patch-set is only for i.MX95. I can add the older iMX SoC support in the
future.
Maybe you could split off addition of the MU driver into separate series and
do it for all the SoCs right away instead ?
Adding other SoCs support needs tests, but to tests other platforms, we
need more work. We could not just put code here that not tested for other SoCs.
If you are already porting the MU driver for Linux, there is a good
chance the support for other SoCs was already tested in Linux, so it
should be safe to port it over in full to U-Boot that way ?
