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Groups > linux.kernel > #1356286
| From | Christopher Covington <cov@codeaurora.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2] tty: amba-pl011: Use 32-bit accesses for SBSA UART |
| Date | 2016-03-12 00:40 +0100 |
| Message-ID | <rbEOZ-5kn-3@gated-at.bofh.it> (permalink) |
| References | <raiGS-51T-9@gated-at.bofh.it> <rboTU-22L-9@gated-at.bofh.it> <rbwRs-7YD-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On March 11, 2016 10:02:14 PM GMT+07:00, Peter Hurley <peter@hurleysoftware.com> wrote: >Hi Christopher, > >On 03/10/2016 10:35 PM, Christopher Covington wrote: >> Version 2 of the Server Base System Architecture (SBSAv2) describes >the >> Generic UART registers as 32 bits wide. At least one implementation, >found >> 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 >> 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.
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[PATCH] tty: amba-pl011: Use 32-bit accesses for SBSA UART Christopher Covington <cov@codeaurora.org> - 2016-03-08 06:50 +0100
Re: [PATCH] tty: amba-pl011: Use 32-bit accesses for SBSA UART Mark Langsdorf <mlangsdo@redhat.com> - 2016-03-08 16:00 +0100
[PATCH] tty: amba-pl011: Use 32-bit accesses for SBSA UART Christopher Covington <cov@codeaurora.org> - 2016-03-11 07:40 +0100
Re: [PATCH] tty: amba-pl011: Use 32-bit accesses for SBSA UART Peter Hurley <peter@hurleysoftware.com> - 2016-03-11 16:10 +0100
Re: [PATCH v2] tty: amba-pl011: Use 32-bit accesses for SBSA UART Christopher Covington <cov@codeaurora.org> - 2016-03-12 00:40 +0100
Re: [PATCH] tty: amba-pl011: Use 32-bit accesses for SBSA UART Andre Przywara <andre.przywara@arm.com> - 2016-03-15 11:10 +0100
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