From: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
To: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Shawn Guo <shawnguo@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>,
Fabio Estevam <fabio.estevam@nxp.com>,
Mark Rutland <mark.rutland@arm.com>,
Nandor Han <nandor.han@ge.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
kernel@collabora.com
Subject: [PATCH 0/2] GE Healthcare PPD firmware upgrade driver for ACHC
Date: Tue, 20 Mar 2018 18:21:59 +0100 [thread overview]
Message-ID: <20180320172201.2065-1-sebastian.reichel@collabora.co.uk> (raw)
Hi,
The PPD has a secondary processor from NXP, which can be programmed
from the main system. It is connected to the main processor by having
it's EzPort interface connected to the SPI bus.
This adds a generic driver to handle firmware flashing via NXP EzPort
and adds a custom compatible for the instance found in GE's device.
The reset gpio is only requested during flashing, since it is also
used for resetting other devices. A better solution for the shared
reset gpio is required at some point, but this does neither affect
the userspace interface, nor the DT interface and should not block
upstreaming this driver.
-- Sebastian
Sebastian Reichel (2):
misc: ezport-firmware: new driver
ARM: dts: imx53: PPD: Update ACHC programming interface
Documentation/devicetree/bindings/misc/ge-achc.txt | 19 +-
arch/arm/boot/dts/imx53-ppd.dts | 5 +-
drivers/misc/Kconfig | 9 +
drivers/misc/Makefile | 1 +
drivers/misc/ezport-firmware.c | 487 +++++++++++++++++++++
5 files changed, 516 insertions(+), 5 deletions(-)
create mode 100644 drivers/misc/ezport-firmware.c
--
2.16.2
next reply other threads:[~2018-03-20 17:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-20 17:21 Sebastian Reichel [this message]
2018-03-20 17:22 ` [PATCH 1/2] misc: ezport-firmware: new driver Sebastian Reichel
2018-03-23 12:13 ` kbuild test robot
2018-03-23 13:17 ` Greg Kroah-Hartman
2018-03-23 14:06 ` Sebastian Reichel
2018-03-20 17:22 ` [PATCH 2/2] ARM: dts: imx53: PPD: Update ACHC programming interface Sebastian Reichel
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