From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
bcm-kernel-feedback-list@broadcom.com, f.fainelli@gmail.com,
gregkh@linuxfoundation.org, tim.gover@raspberrypi.org,
linux-pci@vger.kernel.org, wahrenst@gmx.net,
sergei.shtylyov@cogentembedded.com,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Andrew Murray <amurray@thegoodpenguin.co.uk>
Subject: [PATCH v5 0/4] USB: pci-quirks: Add Raspberry Pi 4 quirk
Date: Tue, 10 Mar 2020 13:52:38 +0100 [thread overview]
Message-ID: <20200310125243.25805-1-nsaenzjulienne@suse.de> (raw)
On the Raspberry Pi 4, after a PCI reset, VL805's firmware may either be
loaded directly from an EEPROM or, if not present, by the SoC's
VideCore. This series adds support for the later.
Note that there are a set of constraints we have to consider (some of
them I missed on v1):
- We need to make sure the VideoCore firmware interface is up and
running before running the VL805 firmware load call.
- There is no way to discern RPi4's VL805 chip from other platforms',
so we need the firmware load to happen *before* running
quirk_usb_handoff_xhci(). Failure to do so results in an unwarranted
5 second wait while the fixup code polls xHC's unexisting state.
---
Changes since v4:
- Addressed Sergei's comments
- Fix potential warning in patch #2
Changes since v3:
- Addressed Greg's comments
There was no v2, my bad.
Changes since v1:
- Addressed Floarians comments
Nicolas Saenz Julienne (4):
soc: bcm2835: Sync xHCI reset firmware property with downstream
firmware: raspberrypi: Introduce vl805 init routine
PCI: brcmstb: Wait for Raspberry Pi's firmware when present
USB: pci-quirks: Add Raspberry Pi 4 quirk
drivers/firmware/Kconfig | 1 +
drivers/firmware/raspberrypi.c | 38 ++++++++++++++++++++++
drivers/pci/controller/pcie-brcmstb.c | 15 +++++++++
drivers/usb/host/pci-quirks.c | 16 +++++++++
include/soc/bcm2835/raspberrypi-firmware.h | 9 ++++-
5 files changed, 78 insertions(+), 1 deletion(-)
--
2.25.1
next reply other threads:[~2020-03-10 12:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-10 12:52 Nicolas Saenz Julienne [this message]
2020-03-10 12:52 ` [PATCH v5 1/4] soc: bcm2835: Sync xHCI reset firmware property with downstream Nicolas Saenz Julienne
2020-03-10 12:52 ` [PATCH v5 2/4] firmware: raspberrypi: Introduce vl805 init routine Nicolas Saenz Julienne
2020-03-10 12:52 ` [PATCH v5 3/4] PCI: brcmstb: Wait for Raspberry Pi's firmware when present Nicolas Saenz Julienne
2020-03-10 12:52 ` [PATCH v5 4/4] USB: pci-quirks: Add Raspberry Pi 4 quirk Nicolas Saenz Julienne
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200310125243.25805-1-nsaenzjulienne@suse.de \
--to=nsaenzjulienne@suse.de \
--cc=amurray@thegoodpenguin.co.uk \
--cc=bcm-kernel-feedback-list@broadcom.com \
--cc=f.fainelli@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-rpi-kernel@lists.infradead.org \
--cc=linux-usb@vger.kernel.org \
--cc=sergei.shtylyov@cogentembedded.com \
--cc=tim.gover@raspberrypi.org \
--cc=wahrenst@gmx.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).