On March 11, 2016 10:02:14 PM GMT+07:00, Peter Hurley [off-list ref] wrote:

Hi Christopher,

On 03/10/2016 10:35 PM, Christopher Covington wrote:

quoted

Version 2 of the Server Base System Architecture (SBSAv2) describes

the

quoted

Generic UART registers as 32 bits wide. At least one implementation,

found

quoted

on the Qualcomm Technologies QDF2432, only supports 32 bit accesses.
SBSAv3, which describes supported access sizes in greater detail,
explicitly requires support for both 16 and 32 bit accesses to all
registers (and 8 bit accesses to some but not all). Therefore, for

broad

quoted

compatibility, simply use 32 bit accessors for the SBSA UART.

So this eliminates the need to configure SBSA port via ACPI, correct?
Thus, Aleksey can drop his "serial: pl011: use SPCR to setup 32-bit
access"?

Yes.

Thanks,
Christopher Covington

-- 
Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

Sent from my Snapdragon powered Android device with K-9 Mail. Please excuse my brevity.