From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/10] drivers: PL011: add ARM SBSA Generic UART support
Date: Fri, 16 Jan 2015 18:31:46 +0100 [thread overview]
Message-ID: <7542669.MXdXNkVnKh@wuerfel> (raw)
In-Reply-To: <1421428986-11300-1-git-send-email-andre.przywara@arm.com>
On Friday 16 January 2015 17:22:56 Andre Przywara wrote:
> The ARM Server Base System Architecture[1] document describes a
> generic UART which is a subset of the PL011 UART.
> It lacks DMA support, baud rate control and modem status line
> control, among other things.
> The idea is to move the UART initialization and setup into the
> firmware (which does this job today already) and let the kernel just
> use the UART for sending and receiving characters.
Given that all other approaches that have been tried have failed, this
seems like the best way forward. I don't know enough about the driver
to do a detailed review, but all patches looked good to me as far as
I could tell.
One question: How does the name space and minor number allocation work
if you have both sbsa-uart and real pl011 in the same system? Do
they share the ttyAMA name space without collisions?
Arnd
next prev parent reply other threads:[~2015-01-16 17:31 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-16 17:22 [PATCH 00/10] drivers: PL011: add ARM SBSA Generic UART support Andre Przywara
2015-01-16 17:22 ` [PATCH 01/10] drivers: PL011: avoid potential unregister_driver call Andre Przywara
2015-01-16 17:22 ` [PATCH 02/10] drivers: PL011: refactor pl011_startup() Andre Przywara
2015-01-16 17:22 ` [PATCH 03/10] drivers: PL011: refactor pl011_shutdown() Andre Przywara
2015-01-16 17:23 ` [PATCH 04/10] drivers: PL011: refactor pl011_set_termios() Andre Przywara
2015-01-16 17:23 ` [PATCH 05/10] drivers: PL011: refactor pl011_probe() Andre Przywara
2015-01-16 17:23 ` [PATCH 06/10] drivers: PL011: replace UART_MIS reading with _RIS & _IMSC Andre Przywara
2015-01-16 17:23 ` [PATCH 07/10] drivers: PL011: move cts_event workaround into separate function Andre Przywara
2015-01-16 17:23 ` [PATCH 08/10] drivers: PL011: allow avoiding UART enabling/disabling Andre Przywara
2015-01-16 17:23 ` [PATCH 09/10] drivers: PL011: allow to supply fixed option string Andre Przywara
2015-01-16 17:23 ` [PATCH 10/10] drivers: PL011: add support for the ARM SBSA generic UART Andre Przywara
2015-01-16 17:34 ` Mark Rutland
2015-01-16 18:07 ` Andre Przywara
2015-01-16 18:12 ` Mark Rutland
2015-01-16 18:33 ` Andre Przywara
2015-01-16 18:37 ` Mark Rutland
2015-01-19 13:31 ` Arnd Bergmann
2015-01-19 13:44 ` Andre Przywara
2015-01-19 13:56 ` Arnd Bergmann
2015-02-17 15:55 ` Philip Elcan
2015-02-17 16:16 ` Dave Martin
2015-03-04 17:47 ` Andre Przywara
2015-03-05 11:15 ` Dave Martin
2015-01-16 17:31 ` Arnd Bergmann [this message]
2015-01-16 17:53 ` [PATCH 00/10] drivers: PL011: add ARM SBSA Generic UART support Andre Przywara
2015-01-20 13:08 ` Graeme Gregory
2015-01-20 13:55 ` Andre Przywara
2015-01-20 14:26 ` Graeme Gregory
2015-01-20 14:33 ` Andre Przywara
2015-01-20 14:52 ` Graeme Gregory
2015-01-21 9:26 ` Graeme Gregory
2015-01-20 14:32 ` Dave P Martin
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