Subject: [PATCH] arm64: dts: ls1088a: update sata node

From: [email-masked] (Shawn Guo)
Date: Wed, 7 Jun 2017 14:02:26 +0800

On Wed, Jun 07, 2017 at 03:41:03AM +0000, Andy Tang wrote:
> A: ls1088 is not a new compatible. For ls1088 soc, it should be "fsl,ls1088a-ahci".

Have you added the compatible support into kernel driver and bindings
doc?

> Previously, we thought ls1088 is compatible with ls1043, so that we defined compatible string as:  "fsl,ls1088a-ahci", "fsl,ls1043a-ahci"; By doing so, we can reuse code.
> 
> Now we found they are not 100% compatible because ECC register address is different. ECC register doesn't belong to SATA IP. It is a global register which controls many IPs. SATA ecc is controlled by only one bit in this register.
> 

Okay, understood.  It sounds like the register should belong to a global
system controller.  If the SATA driver was designed to parse the ECC
register and bit from device tree with a phandle pointing to that
system controller, we do not need to have so many compatibles for the
same SATA IP.

Shawn