From: Florian Fainelli <f.fainelli@gmail.com>
To: Scott Branden <scott.branden@broadcom.com>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Olof Johansson <olof@lixom.net>
Cc: Kees Cook <keescook@chromium.org>,
linux-kernel@vger.kernel.org,
bcm-kernel-feedback-list@broadcom.com
Subject: Re: [PATCH v5 15/15] misc: bcm-vk: add ttyVK support
Date: Wed, 30 Sep 2020 19:36:19 -0700 [thread overview]
Message-ID: <278afb05-8c8d-98d2-eed0-f73b954b03c7@gmail.com> (raw)
In-Reply-To: <20201001012810.4172-16-scott.branden@broadcom.com>
On 9/30/2020 6:28 PM, Scott Branden wrote:
> Add ttyVK support to driver to allow console access to VK card from host.
>
> Device node will be in the follow form /dev/bcm-vk.x_ttyVKy where:
> x is the instance of the VK card
> y is the tty device number on the VK card
>
> Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Was it not possible to:
- emulate a standard 8250 UART and just expose an additional bar + MSI
vector such that one could get a debug UART out of this device with
little to no work on the host side?
- or use virtio console and implement virtio on the firmware that runs
on VK?
It's not a lot of code, but it just feels like this should not have to
be done at all.
--
Florian
next prev parent reply other threads:[~2020-10-01 2:36 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-01 1:27 [PATCH v5 00/15] Add Broadcom VK driver Scott Branden
2020-10-01 1:27 ` [PATCH v5 01/15] bcm-vk: add bcm_vk UAPI Scott Branden
2020-10-01 1:27 ` [PATCH v5 02/15] misc: bcm-vk: add Broadcom VK driver Scott Branden
2020-10-01 1:27 ` [PATCH v5 03/15] misc: bcm-vk: add autoload support Scott Branden
2020-10-01 4:07 ` kernel test robot
2020-10-01 17:48 ` Scott Branden
2020-10-02 5:36 ` [kbuild-all] " Philip Li
2020-10-01 1:27 ` [PATCH v5 04/15] misc: bcm-vk: add misc device to Broadcom VK driver Scott Branden
2020-10-01 1:28 ` [PATCH v5 05/15] misc: bcm-vk: add triggers when host panic or reboots to notify card Scott Branden
2020-10-01 1:28 ` [PATCH v5 06/15] misc: bcm-vk: add open/release Scott Branden
2020-10-01 1:28 ` [PATCH v5 07/15] misc: bcm-vk: add ioctl load_image Scott Branden
2020-10-01 1:28 ` [PATCH v5 08/15] misc: bcm-vk: add get_card_info, peerlog_info, and proc_mon_info Scott Branden
2020-10-01 1:28 ` [PATCH v5 09/15] misc: bcm-vk: add VK messaging support Scott Branden
2020-10-01 1:43 ` Joe Perches
2020-10-01 18:27 ` Scott Branden
2020-10-01 1:28 ` [PATCH v5 10/15] misc: bcm-vk: reset_pid support Scott Branden
2020-10-01 1:28 ` [PATCH v5 11/15] misc: bcm-vk: add BCM_VK_QSTATS Scott Branden
2020-10-01 2:33 ` Florian Fainelli
2020-10-01 22:12 ` Scott Branden
2020-10-01 22:13 ` Florian Fainelli
2020-10-02 16:54 ` Scott Branden
2020-10-02 4:55 ` Greg Kroah-Hartman
2020-10-02 16:52 ` Scott Branden
2020-10-01 1:28 ` [PATCH v5 12/15] misc: bcm-vk: add sysfs interface Scott Branden
2020-10-01 2:30 ` Florian Fainelli
2020-10-01 22:17 ` Scott Branden
2020-10-01 1:28 ` [PATCH v5 13/15] misc: bcm-vk: add mmap function for exposing BAR2 Scott Branden
2020-10-01 1:28 ` [PATCH v5 14/15] MAINTAINERS: bcm-vk: add maintainer for Broadcom VK Driver Scott Branden
2020-10-01 1:28 ` [PATCH v5 15/15] misc: bcm-vk: add ttyVK support Scott Branden
2020-10-01 2:36 ` Florian Fainelli [this message]
2020-10-01 22:26 ` Scott Branden
2020-10-01 2:38 ` [PATCH v5 00/15] Add Broadcom VK driver Florian Fainelli
2020-10-01 12:24 ` Olof Johansson
2020-10-01 22:34 ` Scott Branden
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